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linux-pinenote/drivers/net/ethernet/intel/igb/igb_main.c

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igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/*******************************************************************************
Intel(R) Gigabit Ethernet Linux driver
igb: Copyright string update to year 2013 This patch updates Copyright year to 2013 v2: Changed Copyright year on Makefile Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-08 18:31:12 +00:00
Copyright(c) 2007-2013 Intel Corporation.
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Contact Information:
e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*******************************************************************************/
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <linux/module.h>
#include <linux/types.h>
#include <linux/init.h>
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
#include <linux/bitops.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/netdevice.h>
#include <linux/ipv6.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 17:04:11 +09:00
#include <linux/slab.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <net/checksum.h>
#include <net/ip6_checksum.h>
igb: stub support for SIOCSHWTSTAMP Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:42 +00:00
#include <linux/net_tstamp.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <linux/mii.h>
#include <linux/ethtool.h>
net: introduce IFF_UNICAST_FLT private flag Use IFF_UNICAST_FTL to find out if driver handles unicast address filtering. In case it does not, promisc mode is entered. Patch also fixes following drivers: stmmac, niu: support uc filtering and yet it propagated ndo_set_multicast_list bna, benet, pxa168_eth, ks8851, ks8851_mll, ksz884x : has set ndo_set_rx_mode but do not support uc filtering Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-16 06:29:00 +00:00
#include <linux/if.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <linux/if_vlan.h>
#include <linux/pci.h>
igb: fix tx data corruption with transition to L0s on 82575 The 82575 has an issue in which the DMA will go out of sync if the link partner goes into an L0s state. To prevent this we set the pci-e link partner capability bits to disable the L0s transition on the hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-16 21:26:57 -07:00
#include <linux/pci-aspm.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <linux/delay.h>
#include <linux/interrupt.h>
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/sctp.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include <linux/if_ether.h>
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
#include <linux/aer.h>
Add appropriate <linux/prefetch.h> include for prefetch users After discovering that wide use of prefetch on modern CPUs could be a net loss instead of a win, net drivers which were relying on the implicit inclusion of prefetch.h via the list headers showed up in the resulting cleanup fallout. Give them an explicit include via the following $0.02 script. ========================================= #!/bin/bash MANUAL="" for i in `git grep -l 'prefetch(.*)' .` ; do grep -q '<linux/prefetch.h>' $i if [ $? = 0 ] ; then continue fi ( echo '?^#include <linux/?a' echo '#include <linux/prefetch.h>' echo . echo w echo q ) | ed -s $i > /dev/null 2>&1 if [ $? != 0 ]; then echo $i needs manual fixup MANUAL="$i $MANUAL" fi done echo ------------------- 8\<---------------------- echo vi $MANUAL ========================================= Signed-off-by: Paul <paul.gortmaker@windriver.com> [ Fixed up some incorrect #include placements, and added some non-network drivers and the fib_trie.c case - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-22 16:47:17 -04:00
#include <linux/prefetch.h>
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
#include <linux/pm_runtime.h>
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
#include <linux/dca.h>
#endif
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
#include <linux/i2c.h>
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#include "igb.h"
igb: Version bump This patch updates the igb version to 4.0.1. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-31 23:39:30 +00:00
#define MAJ 4
igb: Update igb version to 4.1.2 Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-05 02:46:05 +00:00
#define MIN 1
#define BUILD 2
igb: Bump version to 3.0.6 This patch updates igb version to 3.0.6. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-11 20:58:19 -08:00
#define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \
igb: Change version to remove number after -k in kernel versions. This patch changes the way versioning is done for igb in the kernel by removing the number after the "k." It has been determined that just the "k" is sufficient to identify a kernel version and the following number was used in an inconsistent manner. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-26 03:02:26 +00:00
__stringify(BUILD) "-k"
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
char igb_driver_name[] = "igb";
char igb_driver_version[] = DRV_VERSION;
static const char igb_driver_string[] =
"Intel(R) Gigabit Ethernet Network Driver";
igb: Copyright string update to year 2013 This patch updates Copyright year to 2013 v2: Changed Copyright year on Makefile Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-08 18:31:12 +00:00
static const char igb_copyright[] =
"Copyright (c) 2007-2013 Intel Corporation.";
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static const struct e1000_info *igb_info_tbl[] = {
[board_82575] = &e1000_82575_info,
};
drivers/net/: use DEFINE_PCI_DEVICE_TABLE() Use DEFINE_PCI_DEVICE_TABLE() so we get place PCI ids table into correct section in every case. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 11:58:11 +00:00
static DEFINE_PCI_DEVICE_TABLE(igb_pci_tbl) = {
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I211_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_FIBER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SGMII), board_82575 },
igb: add support for Intel I350 Gigabit Network Connection This patch adds support for the the I350 Gigabit network connection which is the follow-on part to the 82580. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: James Hearn <james.r.hearn@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:08:06 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_FIBER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SGMII), board_82575 },
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_FIBER), board_82575 },
igb: Add support for i340 Quad Port Fiber Adapter This patch enables support for Intel i340 Quad Port Fiber Adapter. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-01-14 05:33:46 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_QUAD_FIBER), board_82575 },
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SGMII), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER_DUAL), board_82575 },
igb: Add support for DH89xxCC This patch adds support for the Intel(r) DH89xxCC series. The new device will be using Intel(r) i347-AT4 and Marvell(r) M88E1322 and M88E1112 PHYs. Support for these devices has also been added here. Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22 17:56:44 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SGMII), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SERDES), board_82575 },
igb: Some fine tuning This patch does the following: 1. Changes the existing supported device id's so now DH89xxCC is not supported when EEPROM is not read. 2. Adds two more device ids for DH89xxCC in backplane mode and SFP. 3. Driver now initializes previously possibly uninitialized value in igb_reset_mdicnfg_82580(). Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-12-09 01:41:01 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_BACKPLANE), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SFP), board_82575 },
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 },
igb: add support for another dual port 82576 non-security nic Adding device id to support 82576NS dual port copper NIC. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:42:15 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 },
igb: add support for 82576NS SerDes adapter This patch adds the device ID necessary to support the 82576NS SerDes adapter. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:27 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS_SERDES), board_82575 },
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 },
igb: add support for 82576 mezzanine card This patch adds support for a new 82576 mezzanine adapter. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:09:48 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES_QUAD), board_82575 },
igb: Add support for 82576 ET2 Quad Port Server Adapter Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-19 06:07:48 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER_ET2), board_82575 },
igb: add support for 82576 quad copper adapter Add support for 82576 copper adapter and necessary code to restrict wol for quad port adapter to first port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:42:35 +00:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 },
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 },
/* required last entry */
{0, }
};
MODULE_DEVICE_TABLE(pci, igb_pci_tbl);
void igb_reset(struct igb_adapter *);
static int igb_setup_all_tx_resources(struct igb_adapter *);
static int igb_setup_all_rx_resources(struct igb_adapter *);
static void igb_free_all_tx_resources(struct igb_adapter *);
static void igb_free_all_rx_resources(struct igb_adapter *);
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
static void igb_setup_mrqc(struct igb_adapter *);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static int igb_probe(struct pci_dev *, const struct pci_device_id *);
net/intel: remove __dev* attributes CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Carolyn Wyborny <carolyn.wyborny@intel.com> Cc: Don Skidmore <donald.c.skidmore@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Cc: Alex Duyck <alexander.h.duyck@intel.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: Tushar Dave <tushar.n.dave@intel.com> Cc: e1000-devel@lists.sourceforge.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-03 09:24:25 -05:00
static void igb_remove(struct pci_dev *pdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static int igb_sw_init(struct igb_adapter *);
static int igb_open(struct net_device *);
static int igb_close(struct net_device *);
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
static void igb_configure(struct igb_adapter *);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static void igb_configure_tx(struct igb_adapter *);
static void igb_configure_rx(struct igb_adapter *);
static void igb_clean_all_tx_rings(struct igb_adapter *);
static void igb_clean_all_rx_rings(struct igb_adapter *);
igb: Remove adapter struct from these function call parameters Simplify a bunch of calls to these functions by moving the adapter struct out of the function arguments since that is not needed. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 10:59:48 -07:00
static void igb_clean_tx_ring(struct igb_ring *);
static void igb_clean_rx_ring(struct igb_ring *);
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
static void igb_set_rx_mode(struct net_device *);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static void igb_update_phy_info(unsigned long);
static void igb_watchdog(unsigned long);
static void igb_watchdog_task(struct work_struct *);
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, struct net_device *);
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *stats);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static int igb_change_mtu(struct net_device *, int);
static int igb_set_mac(struct net_device *, void *);
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
static void igb_set_uta(struct igb_adapter *adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static irqreturn_t igb_intr(int irq, void *);
static irqreturn_t igb_intr_msi(int irq, void *);
static irqreturn_t igb_msix_other(int irq, void *);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static irqreturn_t igb_msix_ring(int irq, void *);
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static void igb_update_dca(struct igb_q_vector *);
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
static void igb_setup_dca(struct igb_adapter *);
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#endif /* CONFIG_IGB_DCA */
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
static int igb_poll(struct napi_struct *, int);
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
static bool igb_clean_tx_irq(struct igb_q_vector *);
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
static bool igb_clean_rx_irq(struct igb_q_vector *, int);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static int igb_ioctl(struct net_device *, struct ifreq *, int cmd);
static void igb_tx_timeout(struct net_device *);
static void igb_reset_task(struct work_struct *);
net: introduce and use netdev_features_t for device features sets v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 15:29:55 +00:00
static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features);
net: make vlan ndo_vlan_rx_[add/kill]_vid return error value Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08 19:52:37 -05:00
static int igb_vlan_rx_add_vid(struct net_device *, u16);
static int igb_vlan_rx_kill_vid(struct net_device *, u16);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static void igb_restore_vlan(struct igb_adapter *);
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
static void igb_rar_set_qsel(struct igb_adapter *, u8 *, u32 , u8);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
static void igb_ping_all_vfs(struct igb_adapter *);
static void igb_msg_task(struct igb_adapter *);
static void igb_vmm_control(struct igb_adapter *);
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
static int igb_set_vf_mac(struct igb_adapter *, int, unsigned char *);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
static void igb_restore_vf_multicasts(struct igb_adapter *adapter);
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac);
static int igb_ndo_set_vf_vlan(struct net_device *netdev,
int vf, u16 vlan, u8 qos);
static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate);
static int igb_ndo_get_vf_config(struct net_device *netdev, int vf,
struct ifla_vf_info *ivi);
igb: add support for VF Transmit rate limit using iproute2 Implemented igb_ndo_set_vf_bw function which is being used by iproute2 tool. In addition, updated igb_ndo_get_vf_config function to show the actual rate limit to the user. The rate limitation can be configured only when the link is up. The rate limit value can be ranged between 0 and actual link speed measured in Mbps. A value of '0' disables the rate limit for this specific VF. iproute2 usage will be 'ip link set ethX vf Y rate Z'. After the command is made, the rate will be changed instantly. To view the current rate limit, use 'ip link show ethX'. The rates will be zeroed only upon driver reload or a link speed change. This feature is being supported only by 82576 device. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-08 02:28:46 +00:00
static void igb_check_vf_rate_limit(struct igb_adapter *);
igb: fix a compile warning control these three function declarations and definitions with same macro CONFIG_PCI_IOV drivers/net/ethernet/intel/igb/igb_main.c:165: warning: ‘igb_vf_configure’ declared ‘static’ but never defined drivers/net/ethernet/intel/igb/igb_main.c:166: warning: ‘igb_find_enabled_vfs’ declared ‘static’ but never defined drivers/net/ethernet/intel/igb/igb_main.c:167: warning: ‘igb_check_vf_assignment’ declared ‘static’ but never defined Signed-off-by: RongQing Li <roy.qing.li@gmail.com> Acked-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18 22:52:35 +00:00
#ifdef CONFIG_PCI_IOV
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
static int igb_vf_configure(struct igb_adapter *adapter, int vf);
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
static bool igb_vfs_are_assigned(struct igb_adapter *adapter);
igb: fix a compile warning control these three function declarations and definitions with same macro CONFIG_PCI_IOV drivers/net/ethernet/intel/igb/igb_main.c:165: warning: ‘igb_vf_configure’ declared ‘static’ but never defined drivers/net/ethernet/intel/igb/igb_main.c:166: warning: ‘igb_find_enabled_vfs’ declared ‘static’ but never defined drivers/net/ethernet/intel/igb/igb_main.c:167: warning: ‘igb_check_vf_assignment’ declared ‘static’ but never defined Signed-off-by: RongQing Li <roy.qing.li@gmail.com> Acked-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18 22:52:35 +00:00
#endif
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#ifdef CONFIG_PM
igb: fix warning about unused function This patch fixes a warning about unused function when CONFIG_PM_SLEEP is not selected in the kernel config: igb_main.c: warning: `igb_suspend` defined but not used [W-unused-function] Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-01-28 08:10:35 +00:00
#ifdef CONFIG_PM_SLEEP
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_suspend(struct device *);
igb: fix warning about unused function This patch fixes a warning about unused function when CONFIG_PM_SLEEP is not selected in the kernel config: igb_main.c: warning: `igb_suspend` defined but not used [W-unused-function] Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-01-28 08:10:35 +00:00
#endif
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_resume(struct device *);
#ifdef CONFIG_PM_RUNTIME
static int igb_runtime_suspend(struct device *dev);
static int igb_runtime_resume(struct device *dev);
static int igb_runtime_idle(struct device *dev);
#endif
static const struct dev_pm_ops igb_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(igb_suspend, igb_resume)
SET_RUNTIME_PM_OPS(igb_runtime_suspend, igb_runtime_resume,
igb_runtime_idle)
};
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#endif
static void igb_shutdown(struct pci_dev *);
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs);
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
static int igb_notify_dca(struct notifier_block *, unsigned long, void *);
static struct notifier_block dca_notifier = {
.notifier_call = igb_notify_dca,
.next = NULL,
.priority = 0
};
#endif
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#ifdef CONFIG_NET_POLL_CONTROLLER
/* for netdump / net console */
static void igb_netpoll(struct net_device *);
#endif
igb: this patch addes the sr-iov enablement option via num_vfs parameter This code adds a module parameter called num_vfs which defines if the driver should attempt to use sr-iov and if so how many VFs should be enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:30 -08:00
#ifdef CONFIG_PCI_IOV
igb: remove sysfs entry that was used to set the number of vfs This patch removes the sysfs entry num_vfs which was added to support enabling pci virtual functions for 82576. To prevent VFs from loading automatically a module parameter "max_vfs" was added so that the number of VFs per PF can be limited. This is especially useful when 4 or more 82576 ports are on the system because otherwise to load all VFs would result in 8 interface per physical port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-07 14:37:52 +00:00
static unsigned int max_vfs = 0;
module_param(max_vfs, uint, 0);
MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate "
"per physical function");
#endif /* CONFIG_PCI_IOV */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static pci_ers_result_t igb_io_error_detected(struct pci_dev *,
pci_channel_state_t);
static pci_ers_result_t igb_io_slot_reset(struct pci_dev *);
static void igb_io_resume(struct pci_dev *);
netdev: make pci_error_handlers const Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-09-07 09:33:15 -07:00
static const struct pci_error_handlers igb_err_handler = {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
.error_detected = igb_io_error_detected,
.slot_reset = igb_io_slot_reset,
.resume = igb_io_resume,
};
igb: Move DMA Coalescing init code to separate function. This patch moves the DMA Coalescing feature initialization code from igb_reset to a new function and replaces it with a call to the new function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-13 17:29:59 +00:00
static void igb_init_dmac(struct igb_adapter *adapter, u32 pba);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
static struct pci_driver igb_driver = {
.name = igb_driver_name,
.id_table = igb_pci_tbl,
.probe = igb_probe,
net/intel: remove __dev* attributes CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Carolyn Wyborny <carolyn.wyborny@intel.com> Cc: Don Skidmore <donald.c.skidmore@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Cc: Alex Duyck <alexander.h.duyck@intel.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: Tushar Dave <tushar.n.dave@intel.com> Cc: e1000-devel@lists.sourceforge.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-03 09:24:25 -05:00
.remove = igb_remove,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#ifdef CONFIG_PM
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
.driver.pm = &igb_pm_ops,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#endif
.shutdown = igb_shutdown,
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
.sriov_configure = igb_pci_sriov_configure,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
.err_handler = &igb_err_handler
};
MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
intel: make wired ethernet driver message level consistent (rev2) Dan Carpenter noticed that ixgbevf initial default was different than the rest. But the problem is broader than that, only one Intel driver (ixgb) was doing it almost right. The convention for default debug level should be consistent among Intel drivers and follow established convention. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-13 06:04:20 +00:00
#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
static int debug = -1;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
struct igb_reg_info {
u32 ofs;
char *name;
};
static const struct igb_reg_info igb_reg_info_tbl[] = {
/* General Registers */
{E1000_CTRL, "CTRL"},
{E1000_STATUS, "STATUS"},
{E1000_CTRL_EXT, "CTRL_EXT"},
/* Interrupt Registers */
{E1000_ICR, "ICR"},
/* RX Registers */
{E1000_RCTL, "RCTL"},
{E1000_RDLEN(0), "RDLEN"},
{E1000_RDH(0), "RDH"},
{E1000_RDT(0), "RDT"},
{E1000_RXDCTL(0), "RXDCTL"},
{E1000_RDBAL(0), "RDBAL"},
{E1000_RDBAH(0), "RDBAH"},
/* TX Registers */
{E1000_TCTL, "TCTL"},
{E1000_TDBAL(0), "TDBAL"},
{E1000_TDBAH(0), "TDBAH"},
{E1000_TDLEN(0), "TDLEN"},
{E1000_TDH(0), "TDH"},
{E1000_TDT(0), "TDT"},
{E1000_TXDCTL(0), "TXDCTL"},
{E1000_TDFH, "TDFH"},
{E1000_TDFT, "TDFT"},
{E1000_TDFHS, "TDFHS"},
{E1000_TDFPC, "TDFPC"},
/* List Terminator */
{}
};
/*
* igb_regdump - register printout routine
*/
static void igb_regdump(struct e1000_hw *hw, struct igb_reg_info *reginfo)
{
int n = 0;
char rname[16];
u32 regs[8];
switch (reginfo->ofs) {
case E1000_RDLEN(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RDLEN(n));
break;
case E1000_RDH(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RDH(n));
break;
case E1000_RDT(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RDT(n));
break;
case E1000_RXDCTL(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RXDCTL(n));
break;
case E1000_RDBAL(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RDBAL(n));
break;
case E1000_RDBAH(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RDBAH(n));
break;
case E1000_TDBAL(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_RDBAL(n));
break;
case E1000_TDBAH(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_TDBAH(n));
break;
case E1000_TDLEN(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_TDLEN(n));
break;
case E1000_TDH(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_TDH(n));
break;
case E1000_TDT(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_TDT(n));
break;
case E1000_TXDCTL(0):
for (n = 0; n < 4; n++)
regs[n] = rd32(E1000_TXDCTL(n));
break;
default:
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("%-15s %08x\n", reginfo->name, rd32(reginfo->ofs));
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
return;
}
snprintf(rname, 16, "%s%s", reginfo->name, "[0-3]");
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("%-15s %08x %08x %08x %08x\n", rname, regs[0], regs[1],
regs[2], regs[3]);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
}
/*
* igb_dump - Print registers, tx-rings and rx-rings
*/
static void igb_dump(struct igb_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct e1000_hw *hw = &adapter->hw;
struct igb_reg_info *reginfo;
struct igb_ring *tx_ring;
union e1000_adv_tx_desc *tx_desc;
struct my_u0 { u64 a; u64 b; } *u0;
struct igb_ring *rx_ring;
union e1000_adv_rx_desc *rx_desc;
u32 staterr;
igb: avoid unnecessary conversions from u16 to int There are a number of places where we have values that are stored as u16 but are being converted to int unnecessarily. In order to avoid that we should convert all variables that deal with the next_to_clean, next_to_use, and count to u16 values. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:26 +00:00
u16 i, n;
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
if (!netif_msg_hw(adapter))
return;
/* Print netdevice Info */
if (netdev) {
dev_info(&adapter->pdev->dev, "Net device Info\n");
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("Device Name state trans_start "
"last_rx\n");
pr_info("%-15s %016lX %016lX %016lX\n", netdev->name,
netdev->state, netdev->trans_start, netdev->last_rx);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
}
/* Print Registers */
dev_info(&adapter->pdev->dev, "Register Dump\n");
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info(" Register Name Value\n");
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
for (reginfo = (struct igb_reg_info *)igb_reg_info_tbl;
reginfo->name; reginfo++) {
igb_regdump(hw, reginfo);
}
/* Print TX Ring Summary */
if (!netdev || !netif_running(netdev))
goto exit;
dev_info(&adapter->pdev->dev, "TX Rings Summary\n");
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n");
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
for (n = 0; n < adapter->num_tx_queues; n++) {
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_tx_buffer *buffer_info;
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
tx_ring = adapter->tx_ring[n];
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
buffer_info = &tx_ring->tx_buffer_info[tx_ring->next_to_clean];
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n",
n, tx_ring->next_to_use, tx_ring->next_to_clean,
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
(u64)dma_unmap_addr(buffer_info, dma),
dma_unmap_len(buffer_info, len),
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
buffer_info->next_to_watch,
(u64)buffer_info->time_stamp);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
}
/* Print TX Rings */
if (!netif_msg_tx_done(adapter))
goto rx_ring_summary;
dev_info(&adapter->pdev->dev, "TX Rings Dump\n");
/* Transmit Descriptor Formats
*
* Advanced Transmit Descriptor
* +--------------------------------------------------------------+
* 0 | Buffer Address [63:0] |
* +--------------------------------------------------------------+
* 8 | PAYLEN | PORTS |CC|IDX | STA | DCMD |DTYP|MAC|RSV| DTALEN |
* +--------------------------------------------------------------+
* 63 46 45 40 39 38 36 35 32 31 24 15 0
*/
for (n = 0; n < adapter->num_tx_queues; n++) {
tx_ring = adapter->tx_ring[n];
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("------------------------------------\n");
pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index);
pr_info("------------------------------------\n");
pr_info("T [desc] [address 63:0 ] [PlPOCIStDDM Ln] "
"[bi->dma ] leng ntw timestamp "
"bi->skb\n");
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
const char *next_desc;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_tx_buffer *buffer_info;
igb: Replace E1000_XX_DESC_ADV with IGB_XX_DESC Since igb only uses advanced descriptors we might as well just use an IGB specific define and drop the _ADV suffix for the descriptor declarations. In addition this can be further reduced by assuming that it will be working on pointers since that is normally how the Tx descriptors are handled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:05 +00:00
tx_desc = IGB_TX_DESC(tx_ring, i);
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
buffer_info = &tx_ring->tx_buffer_info[i];
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
u0 = (struct my_u0 *)tx_desc;
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
if (i == tx_ring->next_to_use &&
i == tx_ring->next_to_clean)
next_desc = " NTC/U";
else if (i == tx_ring->next_to_use)
next_desc = " NTU";
else if (i == tx_ring->next_to_clean)
next_desc = " NTC";
else
next_desc = "";
pr_info("T [0x%03X] %016llX %016llX %016llX"
" %04X %p %016llX %p%s\n", i,
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
(u64)dma_unmap_addr(buffer_info, dma),
dma_unmap_len(buffer_info, len),
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
buffer_info->next_to_watch,
(u64)buffer_info->time_stamp,
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
buffer_info->skb, next_desc);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
igb: fix panic while dumping packets on Tx hang with IOMMU This patch resolves a "BUG: unable to handle kernel paging request at ..." oops while dumping packet data. The issue occurs with IOMMU enabled due to the address provided by phys_to_virt(). This patch avoids phys_to_virt() by making using skb->data and the address of the pages allocated for Rx. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2012-07-28 05:07:48 +00:00
if (netif_msg_pktdata(adapter) && buffer_info->skb)
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS,
igb: fix panic while dumping packets on Tx hang with IOMMU This patch resolves a "BUG: unable to handle kernel paging request at ..." oops while dumping packet data. The issue occurs with IOMMU enabled due to the address provided by phys_to_virt(). This patch avoids phys_to_virt() by making using skb->data and the address of the pages allocated for Rx. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2012-07-28 05:07:48 +00:00
16, 1, buffer_info->skb->data,
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_len(buffer_info, len),
true);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
}
}
/* Print RX Rings Summary */
rx_ring_summary:
dev_info(&adapter->pdev->dev, "RX Rings Summary\n");
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("Queue [NTU] [NTC]\n");
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
for (n = 0; n < adapter->num_rx_queues; n++) {
rx_ring = adapter->rx_ring[n];
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info(" %5d %5X %5X\n",
n, rx_ring->next_to_use, rx_ring->next_to_clean);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
}
/* Print RX Rings */
if (!netif_msg_rx_status(adapter))
goto exit;
dev_info(&adapter->pdev->dev, "RX Rings Dump\n");
/* Advanced Receive Descriptor (Read) Format
* 63 1 0
* +-----------------------------------------------------+
* 0 | Packet Buffer Address [63:1] |A0/NSE|
* +----------------------------------------------+------+
* 8 | Header Buffer Address [63:1] | DD |
* +-----------------------------------------------------+
*
*
* Advanced Receive Descriptor (Write-Back) Format
*
* 63 48 47 32 31 30 21 20 17 16 4 3 0
* +------------------------------------------------------+
* 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS |
* | Checksum Ident | | | | Type | Type |
* +------------------------------------------------------+
* 8 | VLAN Tag | Length | Extended Error | Extended Status |
* +------------------------------------------------------+
* 63 48 47 32 31 20 19 0
*/
for (n = 0; n < adapter->num_rx_queues; n++) {
rx_ring = adapter->rx_ring[n];
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("------------------------------------\n");
pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index);
pr_info("------------------------------------\n");
pr_info("R [desc] [ PktBuf A0] [ HeadBuf DD] "
"[bi->dma ] [bi->skb] <-- Adv Rx Read format\n");
pr_info("RWB[desc] [PcsmIpSHl PtRs] [vl er S cks ln] -----"
"----------- [bi->skb] <-- Adv Rx Write-Back format\n");
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
for (i = 0; i < rx_ring->count; i++) {
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
const char *next_desc;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_rx_buffer *buffer_info;
buffer_info = &rx_ring->rx_buffer_info[i];
igb: Replace E1000_XX_DESC_ADV with IGB_XX_DESC Since igb only uses advanced descriptors we might as well just use an IGB specific define and drop the _ADV suffix for the descriptor declarations. In addition this can be further reduced by assuming that it will be working on pointers since that is normally how the Tx descriptors are handled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:05 +00:00
rx_desc = IGB_RX_DESC(rx_ring, i);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
u0 = (struct my_u0 *)rx_desc;
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
if (i == rx_ring->next_to_use)
next_desc = " NTU";
else if (i == rx_ring->next_to_clean)
next_desc = " NTC";
else
next_desc = "";
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
if (staterr & E1000_RXD_STAT_DD) {
/* Descriptor Done */
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
pr_info("%s[0x%03X] %016llX %016llX ---------------- %s\n",
"RWB", i,
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
next_desc);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
} else {
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
pr_info("%s[0x%03X] %016llX %016llX %016llX %s\n",
"R ", i,
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
(u64)buffer_info->dma,
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
next_desc);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
igb: fix panic while dumping packets on Tx hang with IOMMU This patch resolves a "BUG: unable to handle kernel paging request at ..." oops while dumping packet data. The issue occurs with IOMMU enabled due to the address provided by phys_to_virt(). This patch avoids phys_to_virt() by making using skb->data and the address of the pages allocated for Rx. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2012-07-28 05:07:48 +00:00
if (netif_msg_pktdata(adapter) &&
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
buffer_info->dma && buffer_info->page) {
igb: drop support for single buffer mode This change removes support for single buffer mode from igb and makes the driver function in packet split always. The advantage to doing this is that we can reduce total memory allocation overhead significantly as we will only need to allocate one 1K slab per packet and then make use of a reusable half page instead of allocating a 2K slab per packet. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:38 +00:00
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS,
16, 1,
igb: fix panic while dumping packets on Tx hang with IOMMU This patch resolves a "BUG: unable to handle kernel paging request at ..." oops while dumping packet data. The issue occurs with IOMMU enabled due to the address provided by phys_to_virt(). This patch avoids phys_to_virt() by making using skb->data and the address of the pages allocated for Rx. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2012-07-28 05:07:48 +00:00
page_address(buffer_info->page) +
buffer_info->page_offset,
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
IGB_RX_BUFSZ, true);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
}
}
}
}
exit:
return;
}
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
/* igb_get_i2c_data - Reads the I2C SDA data bit
* @hw: pointer to hardware structure
* @i2cctl: Current value of I2CCTL register
*
* Returns the I2C data bit value
*/
static int igb_get_i2c_data(void *data)
{
struct igb_adapter *adapter = (struct igb_adapter *)data;
struct e1000_hw *hw = &adapter->hw;
s32 i2cctl = rd32(E1000_I2CPARAMS);
return ((i2cctl & E1000_I2C_DATA_IN) != 0);
}
/* igb_set_i2c_data - Sets the I2C data bit
* @data: pointer to hardware structure
* @state: I2C data value (0 or 1) to set
*
* Sets the I2C data bit
*/
static void igb_set_i2c_data(void *data, int state)
{
struct igb_adapter *adapter = (struct igb_adapter *)data;
struct e1000_hw *hw = &adapter->hw;
s32 i2cctl = rd32(E1000_I2CPARAMS);
if (state)
i2cctl |= E1000_I2C_DATA_OUT;
else
i2cctl &= ~E1000_I2C_DATA_OUT;
i2cctl &= ~E1000_I2C_DATA_OE_N;
i2cctl |= E1000_I2C_CLK_OE_N;
wr32(E1000_I2CPARAMS, i2cctl);
wrfl();
}
/* igb_set_i2c_clk - Sets the I2C SCL clock
* @data: pointer to hardware structure
* @state: state to set clock
*
* Sets the I2C clock line to state
*/
static void igb_set_i2c_clk(void *data, int state)
{
struct igb_adapter *adapter = (struct igb_adapter *)data;
struct e1000_hw *hw = &adapter->hw;
s32 i2cctl = rd32(E1000_I2CPARAMS);
if (state) {
i2cctl |= E1000_I2C_CLK_OUT;
i2cctl &= ~E1000_I2C_CLK_OE_N;
} else {
i2cctl &= ~E1000_I2C_CLK_OUT;
i2cctl &= ~E1000_I2C_CLK_OE_N;
}
wr32(E1000_I2CPARAMS, i2cctl);
wrfl();
}
/* igb_get_i2c_clk - Gets the I2C SCL clock state
* @data: pointer to hardware structure
*
* Gets the I2C clock state
*/
static int igb_get_i2c_clk(void *data)
{
struct igb_adapter *adapter = (struct igb_adapter *)data;
struct e1000_hw *hw = &adapter->hw;
s32 i2cctl = rd32(E1000_I2CPARAMS);
return ((i2cctl & E1000_I2C_CLK_IN) != 0);
}
static const struct i2c_algo_bit_data igb_i2c_algo = {
.setsda = igb_set_i2c_data,
.setscl = igb_set_i2c_clk,
.getsda = igb_get_i2c_data,
.getscl = igb_get_i2c_clk,
.udelay = 5,
.timeout = 20,
};
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
igb: update hw_debug macro to make use of netdev_dbg call This change updates the igb driver to make use of the netdev_dbg function macros now provided in netdevice.h This is meant to be provided as an alternative to the patch provided by Joe Perches. It also removes igb_get_time_str since I found that it is unused code that is no longer used even in debug. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 13:10:08 +00:00
* igb_get_hw_dev - return device
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* used by hardware layer to print debugging information
**/
igb: update hw_debug macro to make use of netdev_dbg call This change updates the igb driver to make use of the netdev_dbg function macros now provided in netdevice.h This is meant to be provided as an alternative to the patch provided by Joe Perches. It also removes igb_get_time_str since I found that it is unused code that is no longer used even in debug. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 13:10:08 +00:00
struct net_device *igb_get_hw_dev(struct e1000_hw *hw)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = hw->back;
igb: update hw_debug macro to make use of netdev_dbg call This change updates the igb driver to make use of the netdev_dbg function macros now provided in netdevice.h This is meant to be provided as an alternative to the patch provided by Joe Perches. It also removes igb_get_time_str since I found that it is unused code that is no longer used even in debug. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 13:10:08 +00:00
return adapter->netdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: access to NIC time Adds the register definitions and code to read the time register. Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:41 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_init_module - Driver Registration Routine
*
* igb_init_module is the first routine called when the driver is
* loaded. All it does is register with the PCI subsystem.
**/
static int __init igb_init_module(void)
{
int ret;
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("%s - version %s\n",
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_driver_string, igb_driver_version);
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
pr_info("%s\n", igb_copyright);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
dca_register_notify(&dca_notifier);
#endif
igb: Fix DCA errors and do not use context index for 82576 82576 was being incorrectly flagged as needing a context index. It does not as each ring has it's own table of 2 contexts. Driver was registering after registering the driver instead of the other way around. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31 00:52:30 -08:00
ret = pci_register_driver(&igb_driver);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return ret;
}
module_init(igb_init_module);
/**
* igb_exit_module - Driver Exit Cleanup Routine
*
* igb_exit_module is called just before the driver is removed
* from memory.
**/
static void __exit igb_exit_module(void)
{
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
dca_unregister_notify(&dca_notifier);
#endif
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
pci_unregister_driver(&igb_driver);
}
module_exit(igb_exit_module);
igb: re-order queues to support cleaner use of ivar on 82576 The 82576 adapter orders the queues in pairs when virtualization is in use. The queue ordering previously conflicted with the ordering when sr-iov was enabled. This new ordering allows a PF to allocate 2 queues without using any VF resources. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:34:11 -08:00
#define Q_IDX_82576(i) (((i & 0x1) << 3) + (i >> 1))
/**
* igb_cache_ring_register - Descriptor ring to register mapping
* @adapter: board private structure to initialize
*
* Once we know the feature-set enabled for the device, we'll cache
* the register offset the descriptor ring is assigned to.
**/
static void igb_cache_ring_register(struct igb_adapter *adapter)
{
igb: change queue ordering for 82576 based adapters This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:40 +00:00
int i = 0, j = 0;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
u32 rbase_offset = adapter->vfs_allocated_count;
igb: re-order queues to support cleaner use of ivar on 82576 The 82576 adapter orders the queues in pairs when virtualization is in use. The queue ordering previously conflicted with the ordering when sr-iov was enabled. This new ordering allows a PF to allocate 2 queues without using any VF resources. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:34:11 -08:00
switch (adapter->hw.mac.type) {
case e1000_82576:
/* The queues are allocated for virtualization such that VF 0
* is allocated queues 0 and 8, VF 1 queues 1 and 9, etc.
* In order to avoid collision we start at the first free queue
* and continue consuming queues in the same sequence
*/
igb: change queue ordering for 82576 based adapters This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:40 +00:00
if (adapter->vfs_allocated_count) {
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
for (; i < adapter->rss_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
adapter->rx_ring[i]->reg_idx = rbase_offset +
Q_IDX_82576(i);
igb: change queue ordering for 82576 based adapters This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:40 +00:00
}
igb: re-order queues to support cleaner use of ivar on 82576 The 82576 adapter orders the queues in pairs when virtualization is in use. The queue ordering previously conflicted with the ordering when sr-iov was enabled. This new ordering allows a PF to allocate 2 queues without using any VF resources. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:34:11 -08:00
case e1000_82575:
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
case e1000_82580:
igb: add support for Intel I350 Gigabit Network Connection This patch adds support for the the I350 Gigabit network connection which is the follow-on part to the 82580. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: James Hearn <james.r.hearn@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:08:06 +00:00
case e1000_i350:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
case e1000_i211:
igb: re-order queues to support cleaner use of ivar on 82576 The 82576 adapter orders the queues in pairs when virtualization is in use. The queue ordering previously conflicted with the ordering when sr-iov was enabled. This new ordering allows a PF to allocate 2 queues without using any VF resources. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:34:11 -08:00
default:
igb: change queue ordering for 82576 based adapters This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:40 +00:00
for (; i < adapter->num_rx_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
adapter->rx_ring[i]->reg_idx = rbase_offset + i;
igb: change queue ordering for 82576 based adapters This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:40 +00:00
for (; j < adapter->num_tx_queues; j++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
adapter->tx_ring[j]->reg_idx = rbase_offset + j;
igb: re-order queues to support cleaner use of ivar on 82576 The 82576 adapter orders the queues in pairs when virtualization is in use. The queue ordering previously conflicted with the ordering when sr-iov was enabled. This new ordering allows a PF to allocate 2 queues without using any VF resources. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:34:11 -08:00
break;
}
}
igb: cleanup IVAR configuration This change is meant to cleanup some of the IVAR register configuration. igb_assign_vector had become pretty large with multiple copies of the same general code for setting the IVAR. This change consolidates most of that code by adding the igb_write_ivar function which allows us just to compute the index and offset and then use that information to setup the IVAR. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:52 +00:00
/**
* igb_write_ivar - configure ivar for given MSI-X vector
* @hw: pointer to the HW structure
* @msix_vector: vector number we are allocating to a given ring
* @index: row index of IVAR register to write within IVAR table
* @offset: column offset of in IVAR, should be multiple of 8
*
* This function is intended to handle the writing of the IVAR register
* for adapters 82576 and newer. The IVAR table consists of 2 columns,
* each containing an cause allocation for an Rx and Tx ring, and a
* variable number of rows depending on the number of queues supported.
**/
static void igb_write_ivar(struct e1000_hw *hw, int msix_vector,
int index, int offset)
{
u32 ivar = array_rd32(E1000_IVAR0, index);
/* clear any bits that are currently set */
ivar &= ~((u32)0xFF << offset);
/* write vector and valid bit */
ivar |= (msix_vector | E1000_IVAR_VALID) << offset;
array_wr32(E1000_IVAR0, index, ivar);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#define IGB_N0_QUEUE -1
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static void igb_assign_vector(struct igb_q_vector *q_vector, int msix_vector)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_hw *hw = &adapter->hw;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
int rx_queue = IGB_N0_QUEUE;
int tx_queue = IGB_N0_QUEUE;
igb: cleanup IVAR configuration This change is meant to cleanup some of the IVAR register configuration. igb_assign_vector had become pretty large with multiple copies of the same general code for setting the IVAR. This change consolidates most of that code by adding the igb_write_ivar function which allows us just to compute the index and offset and then use that information to setup the IVAR. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:52 +00:00
u32 msixbm = 0;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
if (q_vector->rx.ring)
rx_queue = q_vector->rx.ring->reg_idx;
if (q_vector->tx.ring)
tx_queue = q_vector->tx.ring->reg_idx;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
switch (hw->mac.type) {
case e1000_82575:
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* The 82575 assigns vectors using a bitmask, which matches the
bitmask for the EICR/EIMS/EIMC registers. To assign one
or more queues to a vector, we write the appropriate bits
into the MSIXBM register for that vector. */
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (rx_queue > IGB_N0_QUEUE)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
msixbm = E1000_EICR_RX_QUEUE0 << rx_queue;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (tx_queue > IGB_N0_QUEUE)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
msixbm |= E1000_EICR_TX_QUEUE0 << tx_queue;
igb: make certain to reassign legacy interrupt vectors after reset This change corrects an issue that will cause false hangs when using either 82575 or 82580 in legacy interrupt mode. The issue is caused when there is a slow traffic flow and an "ethtool -r" is executed while using legacy or MSI interrupts. MSI-X is not affected by this issue due to the fact that we were already reconfiguring the vectors after reset. If possible it would be best to push this for net-2.6 since it is resolving a bug but if that is not possible then net-next-2.6 will be fine. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-03 21:59:51 +00:00
if (!adapter->msix_entries && msix_vector == 0)
msixbm |= E1000_EIMS_OTHER;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
array_wr32(E1000_MSIXBM(0), msix_vector, msixbm);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
q_vector->eims_value = msixbm;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
break;
case e1000_82576:
igb: cleanup IVAR configuration This change is meant to cleanup some of the IVAR register configuration. igb_assign_vector had become pretty large with multiple copies of the same general code for setting the IVAR. This change consolidates most of that code by adding the igb_write_ivar function which allows us just to compute the index and offset and then use that information to setup the IVAR. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:52 +00:00
/*
* 82576 uses a table that essentially consists of 2 columns
* with 8 rows. The ordering is column-major so we use the
* lower 3 bits as the row index, and the 4th bit as the
* column offset.
*/
if (rx_queue > IGB_N0_QUEUE)
igb_write_ivar(hw, msix_vector,
rx_queue & 0x7,
(rx_queue & 0x8) << 1);
if (tx_queue > IGB_N0_QUEUE)
igb_write_ivar(hw, msix_vector,
tx_queue & 0x7,
((tx_queue & 0x8) << 1) + 8);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
q_vector->eims_value = 1 << msix_vector;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
break;
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
case e1000_82580:
igb: add support for Intel I350 Gigabit Network Connection This patch adds support for the the I350 Gigabit network connection which is the follow-on part to the 82580. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: James Hearn <james.r.hearn@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:08:06 +00:00
case e1000_i350:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
case e1000_i211:
igb: cleanup IVAR configuration This change is meant to cleanup some of the IVAR register configuration. igb_assign_vector had become pretty large with multiple copies of the same general code for setting the IVAR. This change consolidates most of that code by adding the igb_write_ivar function which allows us just to compute the index and offset and then use that information to setup the IVAR. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:52 +00:00
/*
* On 82580 and newer adapters the scheme is similar to 82576
* however instead of ordering column-major we have things
* ordered row-major. So we traverse the table by using
* bit 0 as the column offset, and the remaining bits as the
* row index.
*/
if (rx_queue > IGB_N0_QUEUE)
igb_write_ivar(hw, msix_vector,
rx_queue >> 1,
(rx_queue & 0x1) << 4);
if (tx_queue > IGB_N0_QUEUE)
igb_write_ivar(hw, msix_vector,
tx_queue >> 1,
((tx_queue & 0x1) << 4) + 8);
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
q_vector->eims_value = 1 << msix_vector;
break;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
default:
BUG();
break;
}
igb: remove unecessary q_vector declarations and remove itr_shift This change removes the use of itr_shift since a mac type call can be used just as easily to identify the only HW that needs to have the itr shifted. In addition it removes two unecessary declarations of a q_vector pointer from the initialization path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:00:41 +00:00
/* add q_vector eims value to global eims_enable_mask */
adapter->eims_enable_mask |= q_vector->eims_value;
/* configure q_vector to set itr on first interrupt */
q_vector->set_itr = 1;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_configure_msix - Configure MSI-X hardware
*
* igb_configure_msix sets up the hardware to properly
* generate MSI-X interrupts.
**/
static void igb_configure_msix(struct igb_adapter *adapter)
{
u32 tmp;
int i, vector = 0;
struct e1000_hw *hw = &adapter->hw;
adapter->eims_enable_mask = 0;
/* set vector for other causes, i.e. link changes */
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
switch (hw->mac.type) {
case e1000_82575:
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tmp = rd32(E1000_CTRL_EXT);
/* enable MSI-X PBA support*/
tmp |= E1000_CTRL_EXT_PBA_CLR;
/* Auto-Mask interrupts upon ICR read. */
tmp |= E1000_CTRL_EXT_EIAME;
tmp |= E1000_CTRL_EXT_IRCA;
wr32(E1000_CTRL_EXT, tmp);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/* enable msix_other interrupt */
array_wr32(E1000_MSIXBM(0), vector++,
E1000_EIMS_OTHER);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
adapter->eims_other = E1000_EIMS_OTHER;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
break;
case e1000_82576:
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
case e1000_82580:
igb: add support for Intel I350 Gigabit Network Connection This patch adds support for the the I350 Gigabit network connection which is the follow-on part to the 82580. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: James Hearn <james.r.hearn@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:08:06 +00:00
case e1000_i350:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
case e1000_i211:
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/* Turn on MSI-X capability first, or our settings
* won't stick. And it will take days to debug. */
wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE |
E1000_GPIE_PBA | E1000_GPIE_EIAME |
E1000_GPIE_NSICR);
/* enable msix_other interrupt */
adapter->eims_other = 1 << vector;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
tmp = (vector++ | E1000_IVAR_VALID) << 8;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
wr32(E1000_IVAR_MISC, tmp);
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
break;
default:
/* do nothing, since nothing else supports MSI-X */
break;
} /* switch (hw->mac.type) */
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
adapter->eims_enable_mask |= adapter->eims_other;
igb: remove unecessary q_vector declarations and remove itr_shift This change removes the use of itr_shift since a mac type call can be used just as easily to identify the only HW that needs to have the itr shifted. In addition it removes two unecessary declarations of a q_vector pointer from the initialization path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:00:41 +00:00
for (i = 0; i < adapter->num_q_vectors; i++)
igb_assign_vector(adapter->q_vector[i], vector++);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wrfl();
}
/**
* igb_request_msix - Initialize MSI-X interrupts
*
* igb_request_msix allocates MSI-X vectors and requests interrupts from the
* kernel.
**/
static int igb_request_msix(struct igb_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: release already assigned MSI-X interrupts if setup fails During MSI-X setup the system might run out of vectors. If this happens the already assigned vectors for this NIC should be freed before trying the disable MSI-X. Failing to do so results in the following oops. kernel BUG at drivers/pci/msi.c:341! [...] Call Trace: [<ffffffff8128f39d>] pci_disable_msix+0x3d/0x60 [<ffffffffa037d1ce>] igb_reset_interrupt_capability+0x27/0x5c [igb] [<ffffffffa037d229>] igb_clear_interrupt_scheme+0x26/0x2d [igb] [<ffffffffa0384268>] igb_request_irq+0x73/0x297 [igb] [<ffffffffa0384554>] __igb_open+0xc8/0x223 [igb] [<ffffffffa0384815>] igb_open+0x13/0x15 [igb] [<ffffffff8144592f>] __dev_open+0xbf/0x120 [<ffffffff81443e51>] __dev_change_flags+0xa1/0x180 [<ffffffff81445828>] dev_change_flags+0x28/0x70 [<ffffffff814af537>] devinet_ioctl+0x5b7/0x620 [<ffffffff814b01c8>] inet_ioctl+0x88/0xa0 [<ffffffff8142e8a0>] sock_do_ioctl+0x30/0x70 [<ffffffff8142ecf2>] sock_ioctl+0x72/0x270 [<ffffffff8118062c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81180981>] sys_ioctl+0xa1/0xb0 [<ffffffff815161a9>] system_call_fastpath+0x16/0x1b Code: 48 89 df e8 1f 40 ed ff 4d 39 e6 49 8b 45 10 75 b6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7b 20 e8 3e 91 db ff eb ae <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 RIP [<ffffffff8128e144>] free_msi_irqs+0x124/0x130 RSP <ffff880037503bd8> Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:17 +00:00
int i, err = 0, vector = 0, free_vector = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
err = request_irq(adapter->msix_entries[vector].vector,
drivers/net: request_irq - Remove unnecessary leading & from second arg Not as fancy as coccinelle. Checkpatch errors ignored. Compile tested allyesconfig x86, not all files compiled. grep -rPl --include=*.[ch] "\brequest_irq\s*\([^,\)]+,\s*\&" drivers/net | while read file ; do \ perl -i -e 'local $/; while (<>) { s@(\brequest_irq\s*\([^,\)]+,\s*)\&@\1@g ; print ; }' $file ;\ done Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-18 23:29:17 -08:00
igb_msix_other, 0, netdev->name, adapter);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (err)
igb: release already assigned MSI-X interrupts if setup fails During MSI-X setup the system might run out of vectors. If this happens the already assigned vectors for this NIC should be freed before trying the disable MSI-X. Failing to do so results in the following oops. kernel BUG at drivers/pci/msi.c:341! [...] Call Trace: [<ffffffff8128f39d>] pci_disable_msix+0x3d/0x60 [<ffffffffa037d1ce>] igb_reset_interrupt_capability+0x27/0x5c [igb] [<ffffffffa037d229>] igb_clear_interrupt_scheme+0x26/0x2d [igb] [<ffffffffa0384268>] igb_request_irq+0x73/0x297 [igb] [<ffffffffa0384554>] __igb_open+0xc8/0x223 [igb] [<ffffffffa0384815>] igb_open+0x13/0x15 [igb] [<ffffffff8144592f>] __dev_open+0xbf/0x120 [<ffffffff81443e51>] __dev_change_flags+0xa1/0x180 [<ffffffff81445828>] dev_change_flags+0x28/0x70 [<ffffffff814af537>] devinet_ioctl+0x5b7/0x620 [<ffffffff814b01c8>] inet_ioctl+0x88/0xa0 [<ffffffff8142e8a0>] sock_do_ioctl+0x30/0x70 [<ffffffff8142ecf2>] sock_ioctl+0x72/0x270 [<ffffffff8118062c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81180981>] sys_ioctl+0xa1/0xb0 [<ffffffff815161a9>] system_call_fastpath+0x16/0x1b Code: 48 89 df e8 1f 40 ed ff 4d 39 e6 49 8b 45 10 75 b6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7b 20 e8 3e 91 db ff eb ae <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 RIP [<ffffffff8128e144>] free_msi_irqs+0x124/0x130 RSP <ffff880037503bd8> Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:17 +00:00
goto err_out;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
for (i = 0; i < adapter->num_q_vectors; i++) {
struct igb_q_vector *q_vector = adapter->q_vector[i];
igb: release already assigned MSI-X interrupts if setup fails During MSI-X setup the system might run out of vectors. If this happens the already assigned vectors for this NIC should be freed before trying the disable MSI-X. Failing to do so results in the following oops. kernel BUG at drivers/pci/msi.c:341! [...] Call Trace: [<ffffffff8128f39d>] pci_disable_msix+0x3d/0x60 [<ffffffffa037d1ce>] igb_reset_interrupt_capability+0x27/0x5c [igb] [<ffffffffa037d229>] igb_clear_interrupt_scheme+0x26/0x2d [igb] [<ffffffffa0384268>] igb_request_irq+0x73/0x297 [igb] [<ffffffffa0384554>] __igb_open+0xc8/0x223 [igb] [<ffffffffa0384815>] igb_open+0x13/0x15 [igb] [<ffffffff8144592f>] __dev_open+0xbf/0x120 [<ffffffff81443e51>] __dev_change_flags+0xa1/0x180 [<ffffffff81445828>] dev_change_flags+0x28/0x70 [<ffffffff814af537>] devinet_ioctl+0x5b7/0x620 [<ffffffff814b01c8>] inet_ioctl+0x88/0xa0 [<ffffffff8142e8a0>] sock_do_ioctl+0x30/0x70 [<ffffffff8142ecf2>] sock_ioctl+0x72/0x270 [<ffffffff8118062c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81180981>] sys_ioctl+0xa1/0xb0 [<ffffffff815161a9>] system_call_fastpath+0x16/0x1b Code: 48 89 df e8 1f 40 ed ff 4d 39 e6 49 8b 45 10 75 b6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7b 20 e8 3e 91 db ff eb ae <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 RIP [<ffffffff8128e144>] free_msi_irqs+0x124/0x130 RSP <ffff880037503bd8> Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:17 +00:00
vector++;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
q_vector->itr_register = hw->hw_addr + E1000_EITR(vector);
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
if (q_vector->rx.ring && q_vector->tx.ring)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
sprintf(q_vector->name, "%s-TxRx-%u", netdev->name,
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
q_vector->rx.ring->queue_index);
else if (q_vector->tx.ring)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
sprintf(q_vector->name, "%s-tx-%u", netdev->name,
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
q_vector->tx.ring->queue_index);
else if (q_vector->rx.ring)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
sprintf(q_vector->name, "%s-rx-%u", netdev->name,
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
q_vector->rx.ring->queue_index);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
else
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
sprintf(q_vector->name, "%s-unused", netdev->name);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err = request_irq(adapter->msix_entries[vector].vector,
drivers/net: request_irq - Remove unnecessary leading & from second arg Not as fancy as coccinelle. Checkpatch errors ignored. Compile tested allyesconfig x86, not all files compiled. grep -rPl --include=*.[ch] "\brequest_irq\s*\([^,\)]+,\s*\&" drivers/net | while read file ; do \ perl -i -e 'local $/; while (<>) { s@(\brequest_irq\s*\([^,\)]+,\s*)\&@\1@g ; print ; }' $file ;\ done Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-18 23:29:17 -08:00
igb_msix_ring, 0, q_vector->name,
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
q_vector);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err)
igb: release already assigned MSI-X interrupts if setup fails During MSI-X setup the system might run out of vectors. If this happens the already assigned vectors for this NIC should be freed before trying the disable MSI-X. Failing to do so results in the following oops. kernel BUG at drivers/pci/msi.c:341! [...] Call Trace: [<ffffffff8128f39d>] pci_disable_msix+0x3d/0x60 [<ffffffffa037d1ce>] igb_reset_interrupt_capability+0x27/0x5c [igb] [<ffffffffa037d229>] igb_clear_interrupt_scheme+0x26/0x2d [igb] [<ffffffffa0384268>] igb_request_irq+0x73/0x297 [igb] [<ffffffffa0384554>] __igb_open+0xc8/0x223 [igb] [<ffffffffa0384815>] igb_open+0x13/0x15 [igb] [<ffffffff8144592f>] __dev_open+0xbf/0x120 [<ffffffff81443e51>] __dev_change_flags+0xa1/0x180 [<ffffffff81445828>] dev_change_flags+0x28/0x70 [<ffffffff814af537>] devinet_ioctl+0x5b7/0x620 [<ffffffff814b01c8>] inet_ioctl+0x88/0xa0 [<ffffffff8142e8a0>] sock_do_ioctl+0x30/0x70 [<ffffffff8142ecf2>] sock_ioctl+0x72/0x270 [<ffffffff8118062c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81180981>] sys_ioctl+0xa1/0xb0 [<ffffffff815161a9>] system_call_fastpath+0x16/0x1b Code: 48 89 df e8 1f 40 ed ff 4d 39 e6 49 8b 45 10 75 b6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7b 20 e8 3e 91 db ff eb ae <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 RIP [<ffffffff8128e144>] free_msi_irqs+0x124/0x130 RSP <ffff880037503bd8> Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:17 +00:00
goto err_free;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb_configure_msix(adapter);
return 0;
igb: release already assigned MSI-X interrupts if setup fails During MSI-X setup the system might run out of vectors. If this happens the already assigned vectors for this NIC should be freed before trying the disable MSI-X. Failing to do so results in the following oops. kernel BUG at drivers/pci/msi.c:341! [...] Call Trace: [<ffffffff8128f39d>] pci_disable_msix+0x3d/0x60 [<ffffffffa037d1ce>] igb_reset_interrupt_capability+0x27/0x5c [igb] [<ffffffffa037d229>] igb_clear_interrupt_scheme+0x26/0x2d [igb] [<ffffffffa0384268>] igb_request_irq+0x73/0x297 [igb] [<ffffffffa0384554>] __igb_open+0xc8/0x223 [igb] [<ffffffffa0384815>] igb_open+0x13/0x15 [igb] [<ffffffff8144592f>] __dev_open+0xbf/0x120 [<ffffffff81443e51>] __dev_change_flags+0xa1/0x180 [<ffffffff81445828>] dev_change_flags+0x28/0x70 [<ffffffff814af537>] devinet_ioctl+0x5b7/0x620 [<ffffffff814b01c8>] inet_ioctl+0x88/0xa0 [<ffffffff8142e8a0>] sock_do_ioctl+0x30/0x70 [<ffffffff8142ecf2>] sock_ioctl+0x72/0x270 [<ffffffff8118062c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81180981>] sys_ioctl+0xa1/0xb0 [<ffffffff815161a9>] system_call_fastpath+0x16/0x1b Code: 48 89 df e8 1f 40 ed ff 4d 39 e6 49 8b 45 10 75 b6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7b 20 e8 3e 91 db ff eb ae <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 RIP [<ffffffff8128e144>] free_msi_irqs+0x124/0x130 RSP <ffff880037503bd8> Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:17 +00:00
err_free:
/* free already assigned IRQs */
free_irq(adapter->msix_entries[free_vector++].vector, adapter);
vector--;
for (i = 0; i < vector; i++) {
free_irq(adapter->msix_entries[free_vector++].vector,
adapter->q_vector[i]);
}
err_out:
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return err;
}
static void igb_reset_interrupt_capability(struct igb_adapter *adapter)
{
if (adapter->msix_entries) {
pci_disable_msix(adapter->pdev);
kfree(adapter->msix_entries);
adapter->msix_entries = NULL;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
} else if (adapter->flags & IGB_FLAG_HAS_MSI) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
pci_disable_msi(adapter->pdev);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/**
* igb_free_q_vector - Free memory allocated for specific interrupt vector
* @adapter: board private structure to initialize
* @v_idx: Index of vector to be freed
*
* This function frees the memory allocated to the q_vector. In addition if
* NAPI is enabled it will delete any references to the NAPI struct prior
* to freeing the q_vector.
**/
static void igb_free_q_vector(struct igb_adapter *adapter, int v_idx)
{
struct igb_q_vector *q_vector = adapter->q_vector[v_idx];
if (q_vector->tx.ring)
adapter->tx_ring[q_vector->tx.ring->queue_index] = NULL;
if (q_vector->rx.ring)
adapter->tx_ring[q_vector->rx.ring->queue_index] = NULL;
adapter->q_vector[v_idx] = NULL;
netif_napi_del(&q_vector->napi);
/*
* ixgbe_get_stats64() might access the rings on this vector,
* we must wait a grace period before freeing it.
*/
kfree_rcu(q_vector, rcu);
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/**
* igb_free_q_vectors - Free memory allocated for interrupt vectors
* @adapter: board private structure to initialize
*
* This function frees the memory allocated to the q_vectors. In addition if
* NAPI is enabled it will delete any references to the NAPI struct prior
* to freeing the q_vector.
**/
static void igb_free_q_vectors(struct igb_adapter *adapter)
{
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
int v_idx = adapter->num_q_vectors;
adapter->num_tx_queues = 0;
adapter->num_rx_queues = 0;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
adapter->num_q_vectors = 0;
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
while (v_idx--)
igb_free_q_vector(adapter, v_idx);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
}
/**
* igb_clear_interrupt_scheme - reset the device to a state of no interrupts
*
* This function resets the device so that it has 0 rx queues, tx queues, and
* MSI-X interrupts allocated.
*/
static void igb_clear_interrupt_scheme(struct igb_adapter *adapter)
{
igb_free_q_vectors(adapter);
igb_reset_interrupt_capability(adapter);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_set_interrupt_capability - set MSI or MSI-X if supported
*
* Attempt to configure interrupts using the best available
* capabilities of the hardware and kernel.
**/
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
static void igb_set_interrupt_capability(struct igb_adapter *adapter, bool msix)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
int err;
int numvecs, i;
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
if (!msix)
goto msi_only;
igb: move initialization of number of queues into set_interrupt_capability This patch moves the initialization of the number of queues into set_interrupt_capability. This allows the number of queues to increase in the unlikely event that the system initially fails to allocate enough msi-x interrupts, does a suspend/resume, and then can allocate enough interrupts on resume. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:15:45 +00:00
/* Number of supported queues. */
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
adapter->num_rx_queues = adapter->rss_queues;
igb: Use only a single Tx queue in SR-IOV mode The 82576 expects the second rx queue in any pool to receive L2 switch loop back packets sent from the second tx queue in another pool. The 82576 VF driver does not enable the second rx queue so if the PF driver sends packets destined to a VF from its second tx queue then the VF driver will never see them. In SR-IOV mode limit the number of tx queues used by the PF driver to one. This patch fixes a bug reported in which the PF cannot communciate with the VF and should be considered for 2.6.34 stable. CC: stable@kernel.org Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-01 13:38:16 +00:00
if (adapter->vfs_allocated_count)
adapter->num_tx_queues = 1;
else
adapter->num_tx_queues = adapter->rss_queues;
igb: move initialization of number of queues into set_interrupt_capability This patch moves the initialization of the number of queues into set_interrupt_capability. This allows the number of queues to increase in the unlikely event that the system initially fails to allocate enough msi-x interrupts, does a suspend/resume, and then can allocate enough interrupts on resume. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:15:45 +00:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/* start with one vector for every rx queue */
numvecs = adapter->num_rx_queues;
tree-wide: Assorted spelling fixes In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-03 08:01:28 +08:00
/* if tx handler is separate add 1 for every tx queue */
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
if (!(adapter->flags & IGB_FLAG_QUEUE_PAIRS))
numvecs += adapter->num_tx_queues;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/* store the number of vectors reserved for queues */
adapter->num_q_vectors = numvecs;
/* add 1 vector for link status interrupts */
numvecs++;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->msix_entries = kcalloc(numvecs, sizeof(struct msix_entry),
GFP_KERNEL);
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!adapter->msix_entries)
goto msi_only;
for (i = 0; i < numvecs; i++)
adapter->msix_entries[i].entry = i;
err = pci_enable_msix(adapter->pdev,
adapter->msix_entries,
numvecs);
if (err == 0)
igb: Move the calls to set the Tx and Rx queues into igb_open This change helps to address locking issues seen with netif_set_real_num_tx_queues and netif_set_real_num_rx_queues when used in the igb_set_interrupt_capability function. To resolve these locking issues I have moved the two function calls into __igb_open so that they can be called while the RTNL lock is held. An added advantage to this is that the number of queues is not updated until the last possible moment so if there are any issues in allocating MSI-X interrupts or resources for the rings we have time to change the values prior to updating the netdev. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:22 +00:00
return;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_reset_interrupt_capability(adapter);
/* If we can't do MSI-X, try MSI */
msi_only:
igb: remove sysfs entry that was used to set the number of vfs This patch removes the sysfs entry num_vfs which was added to support enabling pci virtual functions for 82576. To prevent VFs from loading automatically a module parameter "max_vfs" was added so that the number of VFs per PF can be limited. This is especially useful when 4 or more 82576 ports are on the system because otherwise to load all VFs would result in 8 interface per physical port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-07 14:37:52 +00:00
#ifdef CONFIG_PCI_IOV
/* disable SR-IOV for non MSI-X configurations */
if (adapter->vf_data) {
struct e1000_hw *hw = &adapter->hw;
/* disable iov and allow time for transactions to clear */
pci_disable_sriov(adapter->pdev);
msleep(500);
kfree(adapter->vf_data);
adapter->vf_data = NULL;
wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
intel drivers: repair missing flush operations after review of all intel drivers, found several instances where drivers had the incorrect pattern of: memory mapped write(); delay(); which should always be: memory mapped write(); write flush(); /* aka memory mapped read */ delay(); explanation: The reason for including the flush is that writes can be held (posted) in PCI/PCIe bridges, but the read always has to complete synchronously and therefore has to flush all pending writes to a device. If a write is held and followed by a delay, the delay means nothing because the write may not have reached hardware (maybe even not until the next read) Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-07-20 00:56:21 +00:00
wrfl();
igb: remove sysfs entry that was used to set the number of vfs This patch removes the sysfs entry num_vfs which was added to support enabling pci virtual functions for 82576. To prevent VFs from loading automatically a module parameter "max_vfs" was added so that the number of VFs per PF can be limited. This is especially useful when 4 or more 82576 ports are on the system because otherwise to load all VFs would result in 8 interface per physical port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-07 14:37:52 +00:00
msleep(100);
dev_info(&adapter->pdev->dev, "IOV Disabled\n");
}
#endif
igb: add support for seperate tx-usecs setting in ethtool This patch adds support for a seperate tx-usecs interrupt moderation setting in ethtool which is supported when tx and rx interrupt vectors are sperated. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:45:42 +00:00
adapter->vfs_allocated_count = 0;
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
adapter->rss_queues = 1;
igb: add support for seperate tx-usecs setting in ethtool This patch adds support for a seperate tx-usecs interrupt moderation setting in ethtool which is supported when tx and rx interrupt vectors are sperated. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:45:42 +00:00
adapter->flags |= IGB_FLAG_QUEUE_PAIRS;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->num_rx_queues = 1;
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
adapter->num_tx_queues = 1;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
adapter->num_q_vectors = 1;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!pci_enable_msi(adapter->pdev))
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
adapter->flags |= IGB_FLAG_HAS_MSI;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
static void igb_add_ring(struct igb_ring *ring,
struct igb_ring_container *head)
{
head->ring = ring;
head->count++;
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/**
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
* igb_alloc_q_vector - Allocate memory for a single interrupt vector
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
* @adapter: board private structure to initialize
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
* @v_count: q_vectors allocated on adapter, used for ring interleaving
* @v_idx: index of vector in adapter struct
* @txr_count: total number of Tx rings to allocate
* @txr_idx: index of first Tx ring to allocate
* @rxr_count: total number of Rx rings to allocate
* @rxr_idx: index of first Rx ring to allocate
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
*
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
* We allocate one q_vector. If allocation fails we return -ENOMEM.
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
**/
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
static int igb_alloc_q_vector(struct igb_adapter *adapter,
int v_count, int v_idx,
int txr_count, int txr_idx,
int rxr_count, int rxr_idx)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
{
struct igb_q_vector *q_vector;
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
struct igb_ring *ring;
int ring_count, size;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/* igb only supports 1 Tx and/or 1 Rx queue per vector */
if (txr_count > 1 || rxr_count > 1)
return -ENOMEM;
ring_count = txr_count + rxr_count;
size = sizeof(struct igb_q_vector) +
(sizeof(struct igb_ring) * ring_count);
/* allocate q_vector and rings */
q_vector = kzalloc(size, GFP_KERNEL);
if (!q_vector)
return -ENOMEM;
/* initialize NAPI */
netif_napi_add(adapter->netdev, &q_vector->napi,
igb_poll, 64);
/* tie q_vector and adapter together */
adapter->q_vector[v_idx] = q_vector;
q_vector->adapter = adapter;
/* initialize work limits */
q_vector->tx.work_limit = adapter->tx_work_limit;
/* initialize ITR configuration */
q_vector->itr_register = adapter->hw.hw_addr + E1000_EITR(0);
q_vector->itr_val = IGB_START_ITR;
/* initialize pointer to rings */
ring = q_vector->ring;
if (txr_count) {
/* assign generic ring traits */
ring->dev = &adapter->pdev->dev;
ring->netdev = adapter->netdev;
/* configure backlink on ring */
ring->q_vector = q_vector;
/* update q_vector Tx values */
igb_add_ring(ring, &q_vector->tx);
/* For 82575, context index must be unique per ring. */
if (adapter->hw.mac.type == e1000_82575)
set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags);
/* apply Tx specific ring traits */
ring->count = adapter->tx_ring_count;
ring->queue_index = txr_idx;
/* assign ring to adapter */
adapter->tx_ring[txr_idx] = ring;
/* push pointer to next ring */
ring++;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
}
igb: Use node specific allocations for the q_vectors and rings This change is meant to update the ring and vector allocations so that they are per node instead of allocating everything on the node that ifconfig/modprobe is called on. By doing this we can cut down significantly on cross node traffic. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:20 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
if (rxr_count) {
/* assign generic ring traits */
ring->dev = &adapter->pdev->dev;
ring->netdev = adapter->netdev;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/* configure backlink on ring */
ring->q_vector = q_vector;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/* update q_vector Rx values */
igb_add_ring(ring, &q_vector->rx);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/* set flag indicating ring supports SCTP checksum offload */
if (adapter->hw.mac.type >= e1000_82576)
set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/*
* On i350, i210, and i211, loopback VLAN packets
* have the tag byte-swapped.
* */
if (adapter->hw.mac.type >= e1000_i350)
set_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &ring->flags);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
/* apply Rx specific ring traits */
ring->count = adapter->rx_ring_count;
ring->queue_index = rxr_idx;
/* assign ring to adapter */
adapter->rx_ring[rxr_idx] = ring;
}
return 0;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
}
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/**
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
* igb_alloc_q_vectors - Allocate memory for interrupt vectors
* @adapter: board private structure to initialize
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
*
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
* We allocate one q_vector per queue interrupt. If allocation fails we
* return -ENOMEM.
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
**/
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
static int igb_alloc_q_vectors(struct igb_adapter *adapter)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
{
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
int q_vectors = adapter->num_q_vectors;
int rxr_remaining = adapter->num_rx_queues;
int txr_remaining = adapter->num_tx_queues;
int rxr_idx = 0, txr_idx = 0, v_idx = 0;
int err;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
if (q_vectors >= (rxr_remaining + txr_remaining)) {
for (; rxr_remaining; v_idx++) {
err = igb_alloc_q_vector(adapter, q_vectors, v_idx,
0, 0, 1, rxr_idx);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
if (err)
goto err_out;
/* update counts and index */
rxr_remaining--;
rxr_idx++;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
}
}
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
for (; v_idx < q_vectors; v_idx++) {
int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_idx);
int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_idx);
err = igb_alloc_q_vector(adapter, q_vectors, v_idx,
tqpv, txr_idx, rqpv, rxr_idx);
if (err)
goto err_out;
/* update counts and index */
rxr_remaining -= rqpv;
txr_remaining -= tqpv;
rxr_idx++;
txr_idx++;
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
return 0;
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
err_out:
adapter->num_tx_queues = 0;
adapter->num_rx_queues = 0;
adapter->num_q_vectors = 0;
while (v_idx--)
igb_free_q_vector(adapter, v_idx);
return -ENOMEM;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
}
/**
* igb_init_interrupt_scheme - initialize interrupts, allocate queues/vectors
*
* This function initializes the interrupts and allocates all of the queues.
**/
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
static int igb_init_interrupt_scheme(struct igb_adapter *adapter, bool msix)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
{
struct pci_dev *pdev = adapter->pdev;
int err;
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
igb_set_interrupt_capability(adapter, msix);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
err = igb_alloc_q_vectors(adapter);
if (err) {
dev_err(&pdev->dev, "Unable to allocate memory for vectors\n");
goto err_alloc_q_vectors;
}
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
igb_cache_ring_register(adapter);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
return 0;
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
err_alloc_q_vectors:
igb_reset_interrupt_capability(adapter);
return err;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_request_irq - initialize interrupts
*
* Attempts to configure interrupts using the best available
* capabilities of the hardware and kernel.
**/
static int igb_request_irq(struct igb_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int err = 0;
if (adapter->msix_entries) {
err = igb_request_msix(adapter);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
if (!err)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
goto request_done;
/* fall back to MSI */
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
igb_free_all_tx_resources(adapter);
igb_free_all_rx_resources(adapter);
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_clear_interrupt_scheme(adapter);
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
err = igb_init_interrupt_scheme(adapter, false);
if (err)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
goto request_done;
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_setup_all_tx_resources(adapter);
igb_setup_all_rx_resources(adapter);
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
igb_configure(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
igb: Make certain one vector is always assigned in igb_request_irq This change makes certain that one interrupt is always initialized in igb_request_irq. In addition we drop the use of adapter->pdev and instead just call pdev since we made a local copy of the pointer earlier in the function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:45 +00:00
igb_assign_vector(adapter->q_vector[0], 0);
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
if (adapter->flags & IGB_FLAG_HAS_MSI) {
igb: Make certain one vector is always assigned in igb_request_irq This change makes certain that one interrupt is always initialized in igb_request_irq. In addition we drop the use of adapter->pdev and instead just call pdev since we made a local copy of the pointer earlier in the function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:45 +00:00
err = request_irq(pdev->irq, igb_intr_msi, 0,
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
netdev->name, adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!err)
goto request_done;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* fall back to legacy interrupts */
igb_reset_interrupt_capability(adapter);
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
adapter->flags &= ~IGB_FLAG_HAS_MSI;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Make certain one vector is always assigned in igb_request_irq This change makes certain that one interrupt is always initialized in igb_request_irq. In addition we drop the use of adapter->pdev and instead just call pdev since we made a local copy of the pointer earlier in the function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:45 +00:00
err = request_irq(pdev->irq, igb_intr, IRQF_SHARED,
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
netdev->name, adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: fix legacy mode irq issue I booted an igb kernel with the option pci=nomsi and instantly noticed that interrupts no longer worked on my igb device. I took a look at the interrupt initialization and quickly discovered a comment stating: "DO NOT USE EIAME or IAME in legacy mode" It seemed a bit odd that bits to enable IAM were being set in legacy interrupt mode, so I dropped out the following parts and interrupts began working fine again. [Updated code flow and a nitpick spelling error --Auke] Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-02-15 14:05:25 -08:00
if (err)
igb: Make certain one vector is always assigned in igb_request_irq This change makes certain that one interrupt is always initialized in igb_request_irq. In addition we drop the use of adapter->pdev and instead just call pdev since we made a local copy of the pointer earlier in the function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:45 +00:00
dev_err(&pdev->dev, "Error %d getting interrupt\n",
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err);
request_done:
return err;
}
static void igb_free_irq(struct igb_adapter *adapter)
{
if (adapter->msix_entries) {
int vector = 0, i;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
free_irq(adapter->msix_entries[vector++].vector, adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
for (i = 0; i < adapter->num_q_vectors; i++)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
free_irq(adapter->msix_entries[vector++].vector,
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
adapter->q_vector[i]);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
} else {
free_irq(adapter->pdev->irq, adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
/**
* igb_irq_disable - Mask off interrupt generation on the NIC
* @adapter: board private structure
**/
static void igb_irq_disable(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
igb: cleanup interrupt enablement in regards to msix_other This patch changes a few things so that instead of firing a link status interrupt directly the get_link_status bit is set and the watchdog is scheduled. In addition the mailbox bit is now only enabled if VFs are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:59 +00:00
/*
* we need to be careful when disabling interrupts. The VFs are also
* mapped into these registers and so clearing the bits can cause
* issues on the VF drivers so we only need to clear what we set
*/
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (adapter->msix_entries) {
igb: only disable/enable interrupt bits for igb physical function The igb_irq_disable/enable calls were causing virtual functions associated with the igb physical function to have their interrupts disabled. In order to prevent this from occuring we should only clear/set the bits related to the physical function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:49:15 +00:00
u32 regval = rd32(E1000_EIAM);
wr32(E1000_EIAM, regval & ~adapter->eims_enable_mask);
wr32(E1000_EIMC, adapter->eims_enable_mask);
regval = rd32(E1000_EIAC);
wr32(E1000_EIAC, regval & ~adapter->eims_enable_mask);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
wr32(E1000_IAM, 0);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wr32(E1000_IMC, ~0);
wrfl();
igb: Use irq_synchronize per vector when using MSI-X Synchronize all IRQs when using MSI-X. Similar to ixgbe. Issue was reported on e1000e, but the patch is also valid for igb. CC: Jean Delvare <jdelvare@suse.de> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 14:40:52 +00:00
if (adapter->msix_entries) {
int i;
for (i = 0; i < adapter->num_q_vectors; i++)
synchronize_irq(adapter->msix_entries[i].vector);
} else {
synchronize_irq(adapter->pdev->irq);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_irq_enable - Enable default interrupt generation settings
* @adapter: board private structure
**/
static void igb_irq_enable(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
if (adapter->msix_entries) {
igb: Fix features that are currently 82580 only and should also be i350 This change allows support for per packet timesync and global device reset on the i350 adapter. These features were supported on both 82580 and i350 however it looks like several checks where not updated and as such the i350 support was not enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:55 +00:00
u32 ims = E1000_IMS_LSC | E1000_IMS_DOUTSYNC | E1000_IMS_DRSTA;
igb: only disable/enable interrupt bits for igb physical function The igb_irq_disable/enable calls were causing virtual functions associated with the igb physical function to have their interrupts disabled. In order to prevent this from occuring we should only clear/set the bits related to the physical function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:49:15 +00:00
u32 regval = rd32(E1000_EIAC);
wr32(E1000_EIAC, regval | adapter->eims_enable_mask);
regval = rd32(E1000_EIAM);
wr32(E1000_EIAM, regval | adapter->eims_enable_mask);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
wr32(E1000_EIMS, adapter->eims_enable_mask);
igb: cleanup interrupt enablement in regards to msix_other This patch changes a few things so that instead of firing a link status interrupt directly the get_link_status bit is set and the watchdog is scheduled. In addition the mailbox bit is now only enabled if VFs are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:59 +00:00
if (adapter->vfs_allocated_count) {
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
wr32(E1000_MBVFIMR, 0xFF);
igb: cleanup interrupt enablement in regards to msix_other This patch changes a few things so that instead of firing a link status interrupt directly the get_link_status bit is set and the watchdog is scheduled. In addition the mailbox bit is now only enabled if VFs are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:59 +00:00
ims |= E1000_IMS_VMMB;
}
wr32(E1000_IMS, ims);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
} else {
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
wr32(E1000_IMS, IMS_ENABLE_MASK |
E1000_IMS_DRSTA);
wr32(E1000_IAM, IMS_ENABLE_MASK |
E1000_IMS_DRSTA);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
static void igb_update_mng_vlan(struct igb_adapter *adapter)
{
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
u16 vid = adapter->hw.mng_cookie.vlan_id;
u16 old_vid = adapter->mng_vlan_id;
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
if (hw->mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) {
/* add VID to filter table */
igb_vfta_set(hw, vid, true);
adapter->mng_vlan_id = vid;
} else {
adapter->mng_vlan_id = IGB_MNG_VLAN_NONE;
}
if ((old_vid != (u16)IGB_MNG_VLAN_NONE) &&
(vid != old_vid) &&
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
!test_bit(old_vid, adapter->active_vlans)) {
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* remove VID from filter table */
igb_vfta_set(hw, old_vid, false);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
/**
* igb_release_hw_control - release control of the h/w to f/w
* @adapter: address of board private structure
*
* igb_release_hw_control resets CTRL_EXT:DRV_LOAD bit.
* For ASF and Pass Through versions of f/w this means that the
* driver is no longer loaded.
*
**/
static void igb_release_hw_control(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 ctrl_ext;
/* Let firmware take over control of h/w */
ctrl_ext = rd32(E1000_CTRL_EXT);
wr32(E1000_CTRL_EXT,
ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
}
/**
* igb_get_hw_control - get control of the h/w from f/w
* @adapter: address of board private structure
*
* igb_get_hw_control sets CTRL_EXT:DRV_LOAD bit.
* For ASF and Pass Through versions of f/w this means that
* the driver is loaded.
*
**/
static void igb_get_hw_control(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 ctrl_ext;
/* Let firmware know the driver has taken over */
ctrl_ext = rd32(E1000_CTRL_EXT);
wr32(E1000_CTRL_EXT,
ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
}
/**
* igb_configure - configure the hardware for RX and TX
* @adapter: private board structure
**/
static void igb_configure(struct igb_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
int i;
igb_get_hw_control(adapter);
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
igb_set_rx_mode(netdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_restore_vlan(adapter);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
igb_setup_tctl(adapter);
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
igb_setup_mrqc(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_setup_rctl(adapter);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
igb_configure_tx(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_configure_rx(adapter);
igb: fix init on 82575 with MNG enabled This patch resolves an issue seen on 82575 adapters with managability pass-thru enabled, which could cause the system to panic. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:29 -07:00
igb_rx_fifo_flush_82575(&adapter->hw);
igb: remove IGB_DESC_UNUSED since it is better handled by a function call This patch removes IGB_DESC_UNUSED and replaces it with a function call instead in order to cleanup some of the ugliness introduced by the macro. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:16:50 +00:00
/* call igb_desc_unused which always leaves
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* at least 1 descriptor unused to make sure
* next_to_use != next_to_clean */
for (i = 0; i < adapter->num_rx_queues; i++) {
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
struct igb_ring *ring = adapter->rx_ring[i];
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
igb_alloc_rx_buffers(ring, igb_desc_unused(ring));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
igb: Power down link when interface is down This changes the behavior of the driver to power down the link when the associated interface is down, unless management is enabled. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:59 +00:00
/**
* igb_power_up_link - Power up the phy/serdes link
* @adapter: address of board private structure
**/
void igb_power_up_link(struct igb_adapter *adapter)
{
igb: reset PHY in the link_up process to recover PHY setting after power down. There was a previous patch to resolve issue with 82576 losing PHY setting after PHY power down. However that previous implementation triggered speed mismatch and occasional link lost. Now, this patch resolves both initial PHY setting and speed mismatch issues. Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-07-17 04:51:18 +00:00
igb_reset_phy(&adapter->hw);
igb: Power down link when interface is down This changes the behavior of the driver to power down the link when the associated interface is down, unless management is enabled. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:59 +00:00
if (adapter->hw.phy.media_type == e1000_media_type_copper)
igb_power_up_phy_copper(&adapter->hw);
else
igb_power_up_serdes_link_82575(&adapter->hw);
}
/**
* igb_power_down_link - Power down the phy/serdes link
* @adapter: address of board private structure
*/
static void igb_power_down_link(struct igb_adapter *adapter)
{
if (adapter->hw.phy.media_type == e1000_media_type_copper)
igb_power_down_phy_copper_82575(&adapter->hw);
else
igb_shutdown_serdes_link_82575(&adapter->hw);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_up - Open the interface and prepare it to handle traffic
* @adapter: board private structure
**/
int igb_up(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
int i;
/* hardware has been reset, we need to reload some things */
igb_configure(adapter);
clear_bit(__IGB_DOWN, &adapter->state);
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
for (i = 0; i < adapter->num_q_vectors; i++)
napi_enable(&(adapter->q_vector[i]->napi));
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
if (adapter->msix_entries)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_configure_msix(adapter);
igb: make certain to reassign legacy interrupt vectors after reset This change corrects an issue that will cause false hangs when using either 82575 or 82580 in legacy interrupt mode. The issue is caused when there is a slow traffic flow and an "ethtool -r" is executed while using legacy or MSI interrupts. MSI-X is not affected by this issue due to the fact that we were already reconfiguring the vectors after reset. If possible it would be best to push this for net-2.6 since it is resolving a bug but if that is not possible then net-next-2.6 will be fine. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-03 21:59:51 +00:00
else
igb_assign_vector(adapter->q_vector[0], 0);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Clear any pending interrupts. */
rd32(E1000_ICR);
igb_irq_enable(adapter);
igb: delay VF reset notification until after interrupts are enabed This update delays the VF reset notification until after interrupts are enabled. Otherwise there is a chance of having the VF try to reset itself too soon and being ignored by the PF as a result. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:45 +00:00
/* notify VFs that reset has been completed */
if (adapter->vfs_allocated_count) {
u32 reg_data = rd32(E1000_CTRL_EXT);
reg_data |= E1000_CTRL_EXT_PFRSTD;
wr32(E1000_CTRL_EXT, reg_data);
}
e1000/e1000e/igb/ixgb: do not use netif_wake_queue un-necessarily It was pointed out that the Intel wired ethernet drivers do not need to wake the tx queue since netif_carrier_on/off will take care of the qdisc management in order to guarantee the correct handling of the transmit routine enable state. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21 18:42:05 +00:00
netif_tx_start_all_queues(adapter->netdev);
igb: cleanup interrupt enablement in regards to msix_other This patch changes a few things so that instead of firing a link status interrupt directly the get_link_status bit is set and the watchdog is scheduled. In addition the mailbox bit is now only enabled if VFs are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:59 +00:00
/* start the watchdog. */
hw->mac.get_link_status = 1;
schedule_work(&adapter->watchdog_task);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
}
void igb_down(struct igb_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
u32 tctl, rctl;
int i;
/* signal that we're down so the interrupt handler does not
* reschedule our watchdog timer */
set_bit(__IGB_DOWN, &adapter->state);
/* disable receives in the hardware */
rctl = rd32(E1000_RCTL);
wr32(E1000_RCTL, rctl & ~E1000_RCTL_EN);
/* flush and sleep below */
net: Use queue aware tests throughout. This effectively "flips the switch" by making the core networking and multiqueue-aware drivers use the new TX multiqueue structures. Non-multiqueue drivers need no changes. The interfaces they use such as netif_stop_queue() degenerate into an operation on TX queue zero. So everything "just works" for them. Code that really wants to do "X" to all TX queues now invokes a routine that does so, such as netif_tx_wake_all_queues(), netif_tx_stop_all_queues(), etc. pktgen and netpoll required a little bit more surgery than the others. In particular the pktgen changes, whilst functional, could be largely improved. The initial check in pktgen_xmit() will sometimes check the wrong queue, which is mostly harmless. The thing to do is probably to invoke fill_packet() earlier. The bulk of the netpoll changes is to make the code operate solely on the TX queue indicated by by the SKB queue mapping. Setting of the SKB queue mapping is entirely confined inside of net/core/dev.c:dev_pick_tx(). If we end up needing any kind of special semantics (drops, for example) it will be implemented here. Finally, we now have a "real_num_tx_queues" which is where the driver indicates how many TX queues are actually active. With IGB changes from Jeff Kirsher. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 01:56:23 -07:00
netif_tx_stop_all_queues(netdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* disable transmits in the hardware */
tctl = rd32(E1000_TCTL);
tctl &= ~E1000_TCTL_EN;
wr32(E1000_TCTL, tctl);
/* flush both disables and wait for them to finish */
wrfl();
msleep(10);
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
for (i = 0; i < adapter->num_q_vectors; i++)
napi_disable(&(adapter->q_vector[i]->napi));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_irq_disable(adapter);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
netif_carrier_off(netdev);
igb: update stats before doing reset in igb_down It was seen with repeated interface up/down testing that there was a large stray between the stats reported by the queues and the stats reported by the HW. It was found to be an issue in that hw stats were being reset without first being recorded. This change records the stats before wiping them from the system via the reset. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:22:32 +00:00
/* record the stats before reset*/
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
spin_lock(&adapter->stats64_lock);
igb_update_stats(adapter, &adapter->stats64);
spin_unlock(&adapter->stats64_lock);
igb: update stats before doing reset in igb_down It was seen with repeated interface up/down testing that there was a large stray between the stats reported by the queues and the stats reported by the HW. It was found to be an issue in that hw stats were being reset without first being recorded. This change records the stats before wiping them from the system via the reset. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:22:32 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->link_speed = 0;
adapter->link_duplex = 0;
igb: fix EEH recovery during reset on PPC EEH is not recovering in a reasonable amount of time on PPC during igb_down(). Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-24 17:01:15 -07:00
if (!pci_channel_offline(adapter->pdev))
igb_reset(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_clean_all_tx_rings(adapter);
igb_clean_all_rx_rings(adapter);
igb: do not re-register DCA requester on device reset The current driver is re-registering the DCA requester after every reset. Instead of doing this we should only be updating the on board DCA registers and not unregistering/re-registering our requester. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-21 13:06:56 +00:00
#ifdef CONFIG_IGB_DCA
/* since we reset the hardware DCA settings were cleared */
igb_setup_dca(adapter);
#endif
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
void igb_reinit_locked(struct igb_adapter *adapter)
{
WARN_ON(in_interrupt());
while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
msleep(1);
igb_down(adapter);
igb_up(adapter);
clear_bit(__IGB_RESETTING, &adapter->state);
}
void igb_reset(struct igb_adapter *adapter)
{
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_hw *hw = &adapter->hw;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
struct e1000_mac_info *mac = &hw->mac;
struct e1000_fc_info *fc = &hw->fc;
igb: Use a 32-bit mask when calculating the flow control watermarks For some devices, the result of the flow control high watermark gets truncated when programming it into the registers because of the mask used. Switch the mask to 32-bit to prevent this from happening. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-08 04:03:58 +00:00
u32 pba = 0, tx_space, min_tx_space, min_rx_space, hwm;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Repartition Pba for greater than 9k mtu
* To take effect CTRL.RST is required.
*/
igb: change pba size determination from if to switch statement As additional hardware is added to the igb driver it is easier to support the expansion via switch statements instead of using nested ifs. For this reason I am changing this to a switch statement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:21:31 +00:00
switch (mac->type) {
igb: add support for Intel I350 Gigabit Network Connection This patch adds support for the the I350 Gigabit network connection which is the follow-on part to the 82580. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: James Hearn <james.r.hearn@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:08:06 +00:00
case e1000_i350:
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
case e1000_82580:
pba = rd32(E1000_RXPBS);
pba = igb_rxpbs_adjust_82580(pba);
break;
igb: change pba size determination from if to switch statement As additional hardware is added to the igb driver it is easier to support the expansion via switch statements instead of using nested ifs. For this reason I am changing this to a switch statement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:21:31 +00:00
case e1000_82576:
igb: use packet buffer sizes from RXPBS register This patch changes the configuration for 82576 so that it uses the actual value of the 82576 rx packet buffer size instead of just assuming the value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:38 +00:00
pba = rd32(E1000_RXPBS);
pba &= E1000_RXPBS_SIZE_MASK_82576;
igb: change pba size determination from if to switch statement As additional hardware is added to the igb driver it is easier to support the expansion via switch statements instead of using nested ifs. For this reason I am changing this to a switch statement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:21:31 +00:00
break;
case e1000_82575:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
case e1000_i211:
igb: change pba size determination from if to switch statement As additional hardware is added to the igb driver it is easier to support the expansion via switch statements instead of using nested ifs. For this reason I am changing this to a switch statement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:21:31 +00:00
default:
pba = E1000_PBA_34K;
break;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
if ((adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) &&
(mac->type < e1000_82576)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* adjust PBA for jumbo frames */
wr32(E1000_PBA, pba);
/* To maintain wire speed transmits, the Tx FIFO should be
* large enough to accommodate two full transmit packets,
* rounded up to the next 1KB and expressed in KB. Likewise,
* the Rx FIFO should be large enough to accommodate at least
* one full receive packet and is similarly rounded up and
* expressed in KB. */
pba = rd32(E1000_PBA);
/* upper 16 bits has Tx packet buffer allocation size in KB */
tx_space = pba >> 16;
/* lower 16 bits has Rx packet buffer allocation size in KB */
pba &= 0xffff;
/* the tx fifo also stores 16 bytes of information about the tx
* but don't include ethernet FCS because hardware appends it */
min_tx_space = (adapter->max_frame_size +
igb: transition driver to only using advanced descriptors Currently the driver uses advanced descriptors for its main functionality, but then uses legacy when testing. This patch changes this so that advanced descriptors are used throughout and all mentions of legacy descriptors are removed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-16 00:00:20 -08:00
sizeof(union e1000_adv_tx_desc) -
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
ETH_FCS_LEN) * 2;
min_tx_space = ALIGN(min_tx_space, 1024);
min_tx_space >>= 10;
/* software strips receive CRC, so leave room for it */
min_rx_space = adapter->max_frame_size;
min_rx_space = ALIGN(min_rx_space, 1024);
min_rx_space >>= 10;
/* If current Tx allocation is less than the min Tx FIFO size,
* and the min Tx FIFO size is less than the current Rx FIFO
* allocation, take space away from current Rx allocation */
if (tx_space < min_tx_space &&
((min_tx_space - tx_space) < pba)) {
pba = pba - (min_tx_space - tx_space);
/* if short on rx space, rx wins and must trump tx
* adjustment */
if (pba < min_rx_space)
pba = min_rx_space;
}
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
wr32(E1000_PBA, pba);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/* flow control settings */
/* The high water mark must be low enough to fit one full frame
* (or the size used for early receive) above it in the Rx FIFO.
* Set it to the lower of:
* - 90% of the Rx FIFO size, or
* - the full Rx FIFO size minus one full frame */
hwm = min(((pba << 10) * 9 / 10),
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
((pba << 10) - 2 * adapter->max_frame_size));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Use a 32-bit mask when calculating the flow control watermarks For some devices, the result of the flow control high watermark gets truncated when programming it into the registers because of the mask used. Switch the mask to 32-bit to prevent this from happening. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-08 04:03:58 +00:00
fc->high_water = hwm & 0xFFFFFFF0; /* 16-byte granularity */
igb: correctly offset 82575 flow control watermarks by 16 bytes The watermark values for the 82575 were not being set correctly. As a result the high and low watermark values were set to the same value which can lead to excess xon/xoff packets being generated. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23 13:21:27 +00:00
fc->low_water = fc->high_water - 16;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
fc->pause_time = 0xFFFF;
fc->send_xon = 1;
igb: cleanup flow control configuration to make requested/current more clear This patch cleans up the flow control configuration for igb to make it a bit more readable in regards to what the requested and current modes are. This should help with the maintainability of the current igb driver in regards to flow control. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:10:24 +00:00
fc->current_mode = fc->requested_mode;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* disable receive for all VFs and wait one second */
if (adapter->vfs_allocated_count) {
int i;
for (i = 0 ; i < adapter->vfs_allocated_count; i++)
igb: Fix overwrite of the VF's flags The vf flags were being overwritten causing the flag that indicates that the PF has set the VF MAC address to get cleared. This would allow the VF to override the MAC address assigned by the Host VMM using the ip link set command. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 05:43:21 +00:00
adapter->vf_data[i].flags &= IGB_VF_FLAG_PF_SET_MAC;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* ping all the active vfs to let them know we are going down */
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
igb_ping_all_vfs(adapter);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* disable transmits and receives */
wr32(E1000_VFRE, 0);
wr32(E1000_VFTE, 0);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Allow time for pending master requests to run */
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
hw->mac.ops.reset_hw(hw);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wr32(E1000_WUC, 0);
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
if (hw->mac.ops.init_hw(hw))
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_err(&pdev->dev, "Hardware Error\n");
igb: Add DMA Coalescing feature to driver This patch add DMA Coalescing which is a power-saving feature that coalesces DMA writes in order to stay in a low-power state as much as possible. Feature is disabled by default. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-11 20:43:54 -08:00
igb: Force flow control off during reset when forcing speed. During igb_reset(), we initiate a hardware reset which will clear our flow control settings. For auto-negotiation, we re-negotiate them when linking up again, but we need to force them off properly for the forced speed case. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-18 02:57:44 +00:00
/*
* Flow control settings reset on hardware reset, so guarantee flow
* control is off when forcing speed.
*/
if (!hw->mac.autoneg)
igb_force_mac_fc(hw);
igb: Move DMA Coalescing init code to separate function. This patch moves the DMA Coalescing feature initialization code from igb_reset to a new function and replaces it with a call to the new function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-13 17:29:59 +00:00
igb_init_dmac(adapter, pba);
igb: Enable hwmon data output for thermal sensors via I2C. Some of our adapters have internal sensors that report thermal data. This patch enables reporting of that data via sysfs. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:01:42 +00:00
#ifdef CONFIG_IGB_HWMON
/* Re-initialize the thermal sensor on i350 devices. */
if (!test_bit(__IGB_DOWN, &adapter->state)) {
if (mac->type == e1000_i350 && hw->bus.func == 0) {
/* If present, re-initialize the external thermal sensor
* interface.
*/
if (adapter->ets)
mac->ops.init_thermal_sensor_thresh(hw);
}
}
#endif
igb: Power down link when interface is down This changes the behavior of the driver to power down the link when the associated interface is down, unless management is enabled. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:59 +00:00
if (!netif_running(adapter->netdev))
igb_power_down_link(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_update_mng_vlan(adapter);
/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE);
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
/* Re-enable PTP, where applicable. */
igb_ptp_reset(adapter);
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
igb_get_phy_info(hw);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
net: introduce and use netdev_features_t for device features sets v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 15:29:55 +00:00
static netdev_features_t igb_fix_features(struct net_device *netdev,
netdev_features_t features)
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
{
/*
* Since there is no support for separate rx/tx vlan accel
* enable/disable make sure tx flag is always in same state as rx.
*/
if (features & NETIF_F_HW_VLAN_RX)
features |= NETIF_F_HW_VLAN_TX;
else
features &= ~NETIF_F_HW_VLAN_TX;
return features;
}
net: introduce and use netdev_features_t for device features sets v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 15:29:55 +00:00
static int igb_set_features(struct net_device *netdev,
netdev_features_t features)
igb: convert to ndo_fix_features Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM. Removing this needs deeper surgery. Things noticed: - HW VLAN acceleration probably can be toggled, but it's left as is - the resets on RX csum offload change can probably be avoided - there is A LOT of copy-and-pasted code here Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-08 08:38:01 +00:00
{
net: introduce and use netdev_features_t for device features sets v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 15:29:55 +00:00
netdev_features_t changed = netdev->features ^ features;
igb: Support RX-ALL feature flag. This allows the NIC to receive all frames available, including those with bad FCS, un-matched vlans, ethernet control frames, and more. Tested by sending frames with bad FCS. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-06 09:41:58 +00:00
struct igb_adapter *adapter = netdev_priv(netdev);
igb: convert to ndo_fix_features Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM. Removing this needs deeper surgery. Things noticed: - HW VLAN acceleration probably can be toggled, but it's left as is - the resets on RX csum offload change can probably be avoided - there is A LOT of copy-and-pasted code here Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-08 08:38:01 +00:00
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
if (changed & NETIF_F_HW_VLAN_RX)
igb_vlan_mode(netdev, features);
igb: Support RX-ALL feature flag. This allows the NIC to receive all frames available, including those with bad FCS, un-matched vlans, ethernet control frames, and more. Tested by sending frames with bad FCS. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-06 09:41:58 +00:00
if (!(changed & NETIF_F_RXALL))
return 0;
netdev->features = features;
if (netif_running(netdev))
igb_reinit_locked(adapter);
else
igb_reset(adapter);
igb: convert to ndo_fix_features Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM. Removing this needs deeper surgery. Things noticed: - HW VLAN acceleration probably can be toggled, but it's left as is - the resets on RX csum offload change can probably be avoided - there is A LOT of copy-and-pasted code here Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-08 08:38:01 +00:00
return 0;
}
igb: convert to net_device_ops Convert to new network device ops interface. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:20:44 -08:00
static const struct net_device_ops igb_netdev_ops = {
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
.ndo_open = igb_open,
igb: convert to net_device_ops Convert to new network device ops interface. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:20:44 -08:00
.ndo_stop = igb_close,
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
.ndo_start_xmit = igb_xmit_frame,
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
.ndo_get_stats64 = igb_get_stats64,
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
.ndo_set_rx_mode = igb_set_rx_mode,
igb: convert to net_device_ops Convert to new network device ops interface. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:20:44 -08:00
.ndo_set_mac_address = igb_set_mac,
.ndo_change_mtu = igb_change_mtu,
.ndo_do_ioctl = igb_ioctl,
.ndo_tx_timeout = igb_tx_timeout,
.ndo_validate_addr = eth_validate_addr,
.ndo_vlan_rx_add_vid = igb_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = igb_vlan_rx_kill_vid,
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
.ndo_set_vf_mac = igb_ndo_set_vf_mac,
.ndo_set_vf_vlan = igb_ndo_set_vf_vlan,
.ndo_set_vf_tx_rate = igb_ndo_set_vf_bw,
.ndo_get_vf_config = igb_ndo_get_vf_config,
igb: convert to net_device_ops Convert to new network device ops interface. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:20:44 -08:00
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = igb_netpoll,
#endif
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
.ndo_fix_features = igb_fix_features,
.ndo_set_features = igb_set_features,
igb: convert to net_device_ops Convert to new network device ops interface. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:20:44 -08:00
};
igb: Update firmware info output Our NVM image creation tools have evolved over the years and there are multiple versions contained in them, depending on the tool used to create them. This patch outputs the NVM versions available in ethtool -i output. rc2: (not sure why others show in log but not in the message) Added additional call to igb_set_fw_version per Community feedback. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-06-14 16:04:19 +00:00
/**
* igb_set_fw_version - Configure version string for ethtool
* @adapter: adapter struct
*
**/
void igb_set_fw_version(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
igb: Update firmware version info for ethtool output. There are multiple places in our device nvm where the version is stored. This update fixes some output errors with some types of images and refactors the way the version data is gathered and stored for ethtool output. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-10-18 07:16:19 +00:00
struct e1000_fw_version fw;
igb_get_fw_version(hw, &fw);
switch (hw->mac.type) {
case e1000_i211:
igb: Update firmware info output Our NVM image creation tools have evolved over the years and there are multiple versions contained in them, depending on the tool used to create them. This patch outputs the NVM versions available in ethtool -i output. rc2: (not sure why others show in log but not in the message) Added additional call to igb_set_fw_version per Community feedback. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-06-14 16:04:19 +00:00
snprintf(adapter->fw_version, sizeof(adapter->fw_version),
igb: Update firmware version info for ethtool output. There are multiple places in our device nvm where the version is stored. This update fixes some output errors with some types of images and refactors the way the version data is gathered and stored for ethtool output. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-10-18 07:16:19 +00:00
"%2d.%2d-%d",
fw.invm_major, fw.invm_minor, fw.invm_img_type);
break;
default:
/* if option is rom valid, display its version too */
if (fw.or_valid) {
snprintf(adapter->fw_version,
sizeof(adapter->fw_version),
"%d.%d, 0x%08x, %d.%d.%d",
fw.eep_major, fw.eep_minor, fw.etrack_id,
fw.or_major, fw.or_build, fw.or_patch);
/* no option rom */
} else {
snprintf(adapter->fw_version,
sizeof(adapter->fw_version),
"%d.%d, 0x%08x",
fw.eep_major, fw.eep_minor, fw.etrack_id);
}
break;
igb: Update firmware info output Our NVM image creation tools have evolved over the years and there are multiple versions contained in them, depending on the tool used to create them. This patch outputs the NVM versions available in ethtool -i output. rc2: (not sure why others show in log but not in the message) Added additional call to igb_set_fw_version per Community feedback. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-06-14 16:04:19 +00:00
}
return;
}
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
static const struct i2c_board_info i350_sensor_info = {
I2C_BOARD_INFO("i350bb", 0Xf8),
};
/* igb_init_i2c - Init I2C interface
* @adapter: pointer to adapter structure
*
*/
static s32 igb_init_i2c(struct igb_adapter *adapter)
{
s32 status = E1000_SUCCESS;
/* I2C interface supported on i350 devices */
if (adapter->hw.mac.type != e1000_i350)
return E1000_SUCCESS;
/* Initialize the i2c bus which is controlled by the registers.
* This bus will use the i2c_algo_bit structue that implements
* the protocol through toggling of the 4 bits in the register.
*/
adapter->i2c_adap.owner = THIS_MODULE;
adapter->i2c_algo = igb_i2c_algo;
adapter->i2c_algo.data = adapter;
adapter->i2c_adap.algo_data = &adapter->i2c_algo;
adapter->i2c_adap.dev.parent = &adapter->pdev->dev;
strlcpy(adapter->i2c_adap.name, "igb BB",
sizeof(adapter->i2c_adap.name));
status = i2c_bit_add_bus(&adapter->i2c_adap);
return status;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_probe - Device Initialization Routine
* @pdev: PCI device information struct
* @ent: entry in igb_pci_tbl
*
* Returns 0 on success, negative on failure
*
* igb_probe initializes an adapter identified by a pci_dev structure.
* The OS initialization, configuring of the adapter private structure,
* and a hardware reset occur.
**/
drivers/net: fix up function prototypes after __dev* removals The __dev* removal patches for the network drivers ended up messing up the function prototypes for a bunch of drivers. This patch fixes all of them back up to be properly aligned. Bonus is that this almost removes 100 lines of code, always a nice surprise. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-06 14:30:56 +00:00
static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct net_device *netdev;
struct igb_adapter *adapter;
struct e1000_hw *hw;
igb: move global_quad_port_a from global into local static define This change moves global_quad_port_a into igb_probe as a static define since it doesn't actually need to be global. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:31 +00:00
u16 eeprom_data = 0;
igb: Add new function to read part number from EEPROM in string format New adapters will have part numbers stored in string format rather than simple hex format. This function will read part number formats in either hex or string. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-22 17:17:21 +00:00
s32 ret_val;
igb: move global_quad_port_a from global into local static define This change moves global_quad_port_a into igb_probe as a static define since it doesn't actually need to be global. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:31 +00:00
static int global_quad_port_a; /* global quad port a indication */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
const struct e1000_info *ei = igb_info_tbl[ent->driver_data];
unsigned long mmio_start, mmio_len;
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/igb/igb_main.c drivers/net/qlge/qlge_main.c drivers/net/wireless/ath9k/ath9k.h drivers/net/wireless/ath9k/core.h drivers/net/wireless/ath9k/hw.c
2009-03-17 15:01:30 -07:00
int err, pci_using_dac;
igb: Add new function to read part number from EEPROM in string format New adapters will have part numbers stored in string format rather than simple hex format. This function will read part number formats in either hex or string. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-22 17:17:21 +00:00
u8 part_str[E1000_PBANUM_LENGTH];
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
ixgbe/igb: catch invalid VF settings Some ixgbe cards put an invalid VF device ID in the PCIe SR-IOV capability. The ixgbe driver is only valid for PFs or non SR-IOV hardware. It seems that the same problem could occur on igb hardware as well, so if we discover we are trying to initialize a VF in ixbge_probe or igb_probe, print an error and exit. Based on a patch for ixgbe from Chris Wright <chrisw@sous-sol.org>. Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Cc: Chris Wright <chrisw@sous-sol.org> Acked-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 06:40:31 +00:00
/* Catch broken hardware that put the wrong VF device ID in
* the PCIe SR-IOV capability.
*/
if (pdev->is_virtfn) {
WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n",
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
pci_name(pdev), pdev->vendor, pdev->device);
ixgbe/igb: catch invalid VF settings Some ixgbe cards put an invalid VF device ID in the PCIe SR-IOV capability. The ixgbe driver is only valid for PFs or non SR-IOV hardware. It seems that the same problem could occur on igb hardware as well, so if we discover we are trying to initialize a VF in ixbge_probe or igb_probe, print an error and exit. Based on a patch for ixgbe from Chris Wright <chrisw@sous-sol.org>. Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Cc: Chris Wright <chrisw@sous-sol.org> Acked-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 06:40:31 +00:00
return -EINVAL;
}
igb: remove check for needing an io port Since igb supports only pci-e nics and there is no plan to support any legacy pci parts in the driver there isn't really much need for checking to see if an io port is needed. In the unlikely event that we do begin supporting legacy pci parts then we can see about adding this code back to the driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:04 +00:00
err = pci_enable_device_mem(pdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err)
return err;
pci_using_dac = 0;
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!err) {
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!err)
pci_using_dac = 1;
} else {
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err) {
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err) {
dev_err(&pdev->dev, "No usable DMA "
"configuration, aborting\n");
goto err_dma;
}
}
}
igb: remove check for needing an io port Since igb supports only pci-e nics and there is no plan to support any legacy pci parts in the driver there isn't really much need for checking to see if an io port is needed. In the unlikely event that we do begin supporting legacy pci parts then we can see about adding this code back to the driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:04 +00:00
err = pci_request_selected_regions(pdev, pci_select_bars(pdev,
IORESOURCE_MEM),
igb_driver_name);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err)
goto err_pci_reg;
e1000e/igb/ixgbe: Don't report an error if devices don't support AER The only error returned by pci_{en,dis}able_pcie_error_reporting() is -EIO which simply means that Advanced Error Reporting is not supported. There is no need to report that, so remove the error check from e1000e, igb and ixgbe. Signed-off-by: Frans Pop <elendil@planet.nl> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-02 10:04:12 -07:00
pci_enable_pcie_error_reporting(pdev);
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
pci_set_master(pdev);
igb: save and restore pcie/msi state to support EEH recovery To enable EEH support for pci-express network adapters, pcie/msi state needs to be saved and restored for that adapter. [after similar patches for ixgbe and e1000e from Wendy Xiong] Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Cc: Wendy Xiong <wendyx@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-23 11:09:34 -07:00
pci_save_state(pdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err = -ENOMEM;
igb: add vfs_allocated_count as placeholder for number of vfs This is the first step in supporting sr-iov. The vf_allocated_count value will be 0 until we actually have vfs present. In the meantime it represents an offset value for the start of the queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:23 -08:00
netdev = alloc_etherdev_mq(sizeof(struct igb_adapter),
igb: Remove multi_tx_table and simplify igb_xmit_frame Instead of using the multi_tx_table to map possible Tx queues to Tx rings we can just do simple subtraction for the unlikely event that the Tx queue provided exceeds the number of Tx rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:10 +00:00
IGB_MAX_TX_QUEUES);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!netdev)
goto err_alloc_etherdev;
SET_NETDEV_DEV(netdev, &pdev->dev);
pci_set_drvdata(pdev, netdev);
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
hw = &adapter->hw;
hw->back = adapter;
intel: make wired ethernet driver message level consistent (rev2) Dan Carpenter noticed that ixgbevf initial default was different than the rest. But the problem is broader than that, only one Intel driver (ixgb) was doing it almost right. The convention for default debug level should be consistent among Intel drivers and follow established convention. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-13 06:04:20 +00:00
adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
mmio_start = pci_resource_start(pdev, 0);
mmio_len = pci_resource_len(pdev, 0);
err = -EIO;
igb: remove unnecessary adapter->hw calls when just hw-> will do. There were several spots in the code making calls to adapter->hw when they could have just been accessing hw-> directly. I cleaned up the spots where this was visibly apparent. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:20:31 +00:00
hw->hw_addr = ioremap(mmio_start, mmio_len);
if (!hw->hw_addr)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
goto err_ioremap;
igb: convert to net_device_ops Convert to new network device ops interface. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:20:44 -08:00
netdev->netdev_ops = &igb_netdev_ops;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_set_ethtool_ops(netdev);
netdev->watchdog_timeo = 5 * HZ;
strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
netdev->mem_start = mmio_start;
netdev->mem_end = mmio_start + mmio_len;
/* PCI config space info */
hw->vendor_id = pdev->vendor;
hw->device_id = pdev->device;
hw->revision_id = pdev->revision;
hw->subsystem_vendor_id = pdev->subsystem_vendor;
hw->subsystem_device_id = pdev->subsystem_device;
/* Copy the default MAC, PHY and NVM function pointers */
memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops));
memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops));
memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops));
/* Initialize skew-specific constants */
err = ei->get_invariants(hw);
if (err)
igb: remove redundant count set and err_hw_init Remove the setting of ring->count variables from igb_probe as they are duplicating the same configuration that is done igb_alloc_queues. Remove the err_hw_init tag as it can be replaced by err_sw_init. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:22:11 +00:00
goto err_sw_init;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: remove redundant count set and err_hw_init Remove the setting of ring->count variables from igb_probe as they are duplicating the same configuration that is done igb_alloc_queues. Remove the err_hw_init tag as it can be replaced by err_sw_init. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:22:11 +00:00
/* setup the private structure */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err = igb_sw_init(adapter);
if (err)
goto err_sw_init;
igb_get_bus_info_pcie(hw);
hw->phy.autoneg_wait_to_complete = false;
/* Copper options */
if (hw->phy.media_type == e1000_media_type_copper) {
hw->phy.mdix = AUTO_ALL_MODES;
hw->phy.disable_polarity_correction = false;
hw->phy.ms_type = e1000_ms_hw_default;
}
if (igb_check_reset_block(hw))
dev_info(&pdev->dev,
"PHY reset is blocked due to SOL/IDER session.\n");
igb: add support for NETIF_F_RXHASH This patch adds support for Rx hashing. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:29 +00:00
/*
* features is initialized to 0 in allocation, it might have bits
* set by igb_sw_init so we should use an or instead of an
* assignment.
*/
netdev->features |= NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_TSO |
NETIF_F_TSO6 |
NETIF_F_RXHASH |
NETIF_F_RXCSUM |
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_TX;
/* copy netdev features into list of user selectable features */
netdev->hw_features |= netdev->features;
igb: Support RX-ALL feature flag. This allows the NIC to receive all frames available, including those with bad FCS, un-matched vlans, ethernet control frames, and more. Tested by sending frames with bad FCS. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-06 09:41:58 +00:00
netdev->hw_features |= NETIF_F_RXALL;
igb: add support for NETIF_F_RXHASH This patch adds support for Rx hashing. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:29 +00:00
/* set this bit last since it cannot be part of hw_features */
netdev->features |= NETIF_F_HW_VLAN_FILTER;
netdev->vlan_features |= NETIF_F_TSO |
NETIF_F_TSO6 |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_SG;
igb: allow vlan devices to use TSO and TCP CSUM offload Using the new interface for propagating device feature flags into VLAN deivces, turn on TSO and CSUM offload on VLAN devices. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-05 04:06:27 -07:00
igb: Support sending custom Ethernet FCS. Including bad FCS, used generate frames with bad FCS to test other system's handling of RX of bad packets. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-06 09:41:53 +00:00
netdev->priv_flags |= IFF_SUPP_NOFCS;
e1000/e1000e/igb/ixgb/ixgbe: set NETIF_F_HIGHDMA for VLAN feature flags If the netdev->features is set with NETIF_F_HIGHDMA, we should set the corresponding netdev->vlan_features as well to allow VLAN netdev created on top of the real netdev to be able to also benefit from HIGHDMA on 32bit system, reducing the performance hit that is caused by __skb_linearize(), particularly for large send. This is fixed in this patch for all Intel e1000, e1000e, igb, ixgbe, and ixgbe drivers since this should be beneficial to all devices supported by these drivers. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22 17:57:58 +00:00
if (pci_using_dac) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
netdev->features |= NETIF_F_HIGHDMA;
e1000/e1000e/igb/ixgb/ixgbe: set NETIF_F_HIGHDMA for VLAN feature flags If the netdev->features is set with NETIF_F_HIGHDMA, we should set the corresponding netdev->vlan_features as well to allow VLAN netdev created on top of the real netdev to be able to also benefit from HIGHDMA on 32bit system, reducing the performance hit that is caused by __skb_linearize(), particularly for large send. This is fixed in this patch for all Intel e1000, e1000e, igb, ixgbe, and ixgbe drivers since this should be beneficial to all devices supported by these drivers. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22 17:57:58 +00:00
netdev->vlan_features |= NETIF_F_HIGHDMA;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: convert to ndo_fix_features Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM. Removing this needs deeper surgery. Things noticed: - HW VLAN acceleration probably can be toggled, but it's left as is - the resets on RX csum offload change can probably be avoided - there is A LOT of copy-and-pasted code here Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-08 08:38:01 +00:00
if (hw->mac.type >= e1000_82576) {
netdev->hw_features |= NETIF_F_SCTP_CSUM;
igb: Enable SCTP checksum offloading Originally from: Vlad Yasevich <vladislav.yasevich@hp.com> This patch, both the driver portion and the sctp code was modified by Jesse Brandeburg and is Copyright(c) 2009 Intel Corporation. Thanks go to Vlad for starting this work. Intel 82576 chipset supports SCTP checksum offloading. This patch enables this functionality in the driver. A new NETIF feature is introduced for SCTP checksum offload. If the driver supports CRC32c checksum, it can set this feature flag. The hardware can offload both transmit and receive. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 22:36:13 +00:00
netdev->features |= NETIF_F_SCTP_CSUM;
igb: convert to ndo_fix_features Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM. Removing this needs deeper surgery. Things noticed: - HW VLAN acceleration probably can be toggled, but it's left as is - the resets on RX csum offload change can probably be avoided - there is A LOT of copy-and-pasted code here Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-08 08:38:01 +00:00
}
igb: Enable SCTP checksum offloading Originally from: Vlad Yasevich <vladislav.yasevich@hp.com> This patch, both the driver portion and the sctp code was modified by Jesse Brandeburg and is Copyright(c) 2009 Intel Corporation. Thanks go to Vlad for starting this work. Intel 82576 chipset supports SCTP checksum offloading. This patch enables this functionality in the driver. A new NETIF feature is introduced for SCTP checksum offload. If the driver supports CRC32c checksum, it can set this feature flag. The hardware can offload both transmit and receive. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 22:36:13 +00:00
net: introduce IFF_UNICAST_FLT private flag Use IFF_UNICAST_FTL to find out if driver handles unicast address filtering. In case it does not, promisc mode is entered. Patch also fixes following drivers: stmmac, niu: support uc filtering and yet it propagated ndo_set_multicast_list bna, benet, pxa168_eth, ks8851, ks8851_mll, ksz884x : has set ndo_set_rx_mode but do not support uc filtering Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-16 06:29:00 +00:00
netdev->priv_flags |= IFF_UNICAST_FLT;
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
adapter->en_mng_pt = igb_enable_mng_pass_thru(hw);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* before reading the NVM, reset the controller to put the device in a
* known good starting state */
hw->mac.ops.reset_hw(hw);
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
/*
* make sure the NVM is good , i211 parts have special NVM that
* doesn't contain a checksum
*/
if (hw->mac.type != e1000_i211) {
if (hw->nvm.ops.validate(hw) < 0) {
dev_err(&pdev->dev, "The NVM Checksum Is Not Valid\n");
err = -EIO;
goto err_eeprom;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/* copy the MAC address out of the NVM */
if (hw->mac.ops.read_mac_addr(hw))
dev_err(&pdev->dev, "NVM Read Error\n");
memcpy(netdev->dev_addr, hw->mac.addr, netdev->addr_len);
remove init of dev->perm_addr in drivers perm_addr is initialized correctly in register_netdevice() so to init it in drivers is no longer needed. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-08 01:38:26 +00:00
if (!is_valid_ether_addr(netdev->dev_addr)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
dev_err(&pdev->dev, "Invalid MAC Address\n");
err = -EIO;
goto err_eeprom;
}
igb: Update firmware info output Our NVM image creation tools have evolved over the years and there are multiple versions contained in them, depending on the tool used to create them. This patch outputs the NVM versions available in ethtool -i output. rc2: (not sure why others show in log but not in the message) Added additional call to igb_set_fw_version per Community feedback. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-06-14 16:04:19 +00:00
/* get firmware version for ethtool -i */
igb_set_fw_version(adapter);
drivers/net: Remove address use from assignments of function pointers "foo = &function" is more commonly written "foo = function" Done with coccinelle script: // <smpl> @r@ identifier f; @@ f(...) { ... } @@ identifier r.f; @@ - &f + f // </smpl> drivers/net/tehuti.c used a function and struct with the same name, the function was renamed. Compile tested x86 only. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-23 18:20:03 +00:00
setup_timer(&adapter->watchdog_timer, igb_watchdog,
igb: update driver to use setup_timer function igb was previously setting up all of the timer members itself. It is easier to just call setup_timer and reduce the calls to one line. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:17:08 +00:00
(unsigned long) adapter);
drivers/net: Remove address use from assignments of function pointers "foo = &function" is more commonly written "foo = function" Done with coccinelle script: // <smpl> @r@ identifier f; @@ f(...) { ... } @@ identifier r.f; @@ - &f + f // </smpl> drivers/net/tehuti.c used a function and struct with the same name, the function was renamed. Compile tested x86 only. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-23 18:20:03 +00:00
setup_timer(&adapter->phy_info_timer, igb_update_phy_info,
igb: update driver to use setup_timer function igb was previously setting up all of the timer members itself. It is easier to just call setup_timer and reduce the calls to one line. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:17:08 +00:00
(unsigned long) adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
INIT_WORK(&adapter->reset_task, igb_reset_task);
INIT_WORK(&adapter->watchdog_task, igb_watchdog_task);
igb: remove redundant count set and err_hw_init Remove the setting of ring->count variables from igb_probe as they are duplicating the same configuration that is done igb_alloc_queues. Remove the err_hw_init tag as it can be replaced by err_sw_init. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:22:11 +00:00
/* Initialize link properties that are user-changeable */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->fc_autoneg = true;
hw->mac.autoneg = true;
hw->phy.autoneg_advertised = 0x2f;
igb: cleanup flow control configuration to make requested/current more clear This patch cleans up the flow control configuration for igb to make it a bit more readable in regards to what the requested and current modes are. This should help with the maintainability of the current igb driver in regards to flow control. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:10:24 +00:00
hw->fc.requested_mode = e1000_fc_default;
hw->fc.current_mode = e1000_fc_default;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_validate_mdi_setting(hw);
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
/* By default, support wake on port A */
igb: support wol on second port We need to support wol on the second port for situations such as when the lan ports are on the motherboard itself. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:41:17 +00:00
if (hw->bus.func == 0)
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
adapter->flags |= IGB_FLAG_WOL_SUPPORTED;
/* Check the NVM for wake support on non-port A ports */
if (hw->mac.type >= e1000_82580)
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A +
NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1,
&eeprom_data);
igb: support wol on second port We need to support wol on the second port for situations such as when the lan ports are on the motherboard itself. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:41:17 +00:00
else if (hw->bus.func == 1)
hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
if (eeprom_data & IGB_EEPROM_APME)
adapter->flags |= IGB_FLAG_WOL_SUPPORTED;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* now that we have the eeprom settings, apply the special cases where
* the eeprom may be wrong or the board simply won't support wake on
* lan on a particular port */
switch (pdev->device) {
case E1000_DEV_ID_82575GB_QUAD_COPPER:
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
case E1000_DEV_ID_82575EB_FIBER_SERDES:
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
case E1000_DEV_ID_82576_FIBER:
case E1000_DEV_ID_82576_SERDES:
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Wake events only supported on port A for dual fiber
* regardless of eeprom setting */
if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1)
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
igb: add support for 82576 quad copper adapter Add support for 82576 copper adapter and necessary code to restrict wol for quad port adapter to first port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:42:35 +00:00
case E1000_DEV_ID_82576_QUAD_COPPER:
igb: restrict WoL for 82576 ET2 Quad Port Server Adapter Restrict Wake-on-LAN to first port on 82576 ET2 quad port NICs, as it is only supported there. Signed-off-by: Stefan Assmann <sassmann@redhat.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-09 09:51:34 +00:00
case E1000_DEV_ID_82576_QUAD_COPPER_ET2:
igb: add support for 82576 quad copper adapter Add support for 82576 copper adapter and necessary code to restrict wol for quad port adapter to first port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:42:35 +00:00
/* if quad port adapter, disable WoL on all but port A */
if (global_quad_port_a != 0)
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED;
igb: add support for 82576 quad copper adapter Add support for 82576 copper adapter and necessary code to restrict wol for quad port adapter to first port. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:42:35 +00:00
else
adapter->flags |= IGB_FLAG_QUAD_PORT_A;
/* Reset for multiple quad port adapters */
if (++global_quad_port_a == 4)
global_quad_port_a = 0;
break;
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
default:
/* If the device can't wake, don't set software support */
if (!device_can_wakeup(&adapter->pdev->dev))
adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/* initialize the wol settings based on the eeprom settings */
igb: No longer rely on APME to determine WoL settings Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-09 05:49:54 +00:00
if (adapter->flags & IGB_FLAG_WOL_SUPPORTED)
adapter->wol |= E1000_WUFC_MAG;
/* Some vendors want WoL disabled by default, but still supported */
if ((hw->mac.type == e1000_i350) &&
(pdev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
adapter->flags |= IGB_FLAG_WOL_SUPPORTED;
adapter->wol = 0;
}
device_set_wakeup_enable(&adapter->pdev->dev,
adapter->flags & IGB_FLAG_WOL_SUPPORTED);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* reset the hardware with the new settings */
igb_reset(adapter);
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
/* Init the I2C interface */
err = igb_init_i2c(adapter);
if (err) {
dev_err(&pdev->dev, "failed to init i2c interface\n");
goto err_eeprom;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* let the f/w know that the h/w is now under the control of the
* driver. */
igb_get_hw_control(adapter);
strcpy(netdev->name, "eth%d");
err = register_netdev(netdev);
if (err)
goto err_register;
igb: fix link down inital state As reported by Andrew Lutomirski <amluto@gmail.com> All the intel wired ethernet drivers were calling netif_carrier_off and netif_stop_queue (or variants) before calling register_netdevice This is incorrect behavior as was pointed out by davem, and causes ifconfig and friends to report a strange state before first link after the driver was loaded, since without a netif_carrier_off, the stack assumes carrier_on, but before register_netdev, netlink messages are not sent out telling link state. This apparently confused *some* versions of networkmanager. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reported-by: Andrew Lutomirski <amluto@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-17 20:44:32 +00:00
/* carrier off reporting is important to ethtool even BEFORE open */
netif_carrier_off(netdev);
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: Fix DCA errors and do not use context index for 82576 82576 was being incorrectly flagged as needing a context index. It does not as each ring has it's own table of 2 contexts. Driver was registering after registering the driver instead of the other way around. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31 00:52:30 -08:00
if (dca_add_requester(&pdev->dev) == 0) {
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
adapter->flags |= IGB_FLAG_DCA_ENABLED;
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
dev_info(&pdev->dev, "DCA enabled\n");
igb_setup_dca(adapter);
}
igb: access to NIC time Adds the register definitions and code to read the time register. Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:41 +00:00
#endif
igb: Enable hwmon data output for thermal sensors via I2C. Some of our adapters have internal sensors that report thermal data. This patch enables reporting of that data via sysfs. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:01:42 +00:00
#ifdef CONFIG_IGB_HWMON
/* Initialize the thermal sensor on i350 devices. */
if (hw->mac.type == e1000_i350 && hw->bus.func == 0) {
u16 ets_word;
igb: Tidy up wrapping for CONFIG_IGB_PTP. For users without CONFIG_IGB_PTP=y, we should not be compiling any PTP code into the driver. Tidy up the wrapping in igb to support this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-10 05:40:43 +00:00
igb: Enable hwmon data output for thermal sensors via I2C. Some of our adapters have internal sensors that report thermal data. This patch enables reporting of that data via sysfs. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:01:42 +00:00
/*
* Read the NVM to determine if this i350 device supports an
* external thermal sensor.
*/
hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_word);
if (ets_word != 0x0000 && ets_word != 0xFFFF)
adapter->ets = true;
else
adapter->ets = false;
if (igb_sysfs_init(adapter))
dev_err(&pdev->dev,
"failed to allocate sysfs resources\n");
} else {
adapter->ets = false;
}
#endif
igb: fix hw timestamping Hardware timestamping for Intel 82580 didn't work in either 2.6.36 or 2.6.37. Comparing it to Intel's igb-2.4.12 I found that the timecounter_init clock/counter initialization was done too early. Signed-off-by: Anders Berggren <andfers@halon.se> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-04 07:32:32 +00:00
/* do hw tstamp init after resetting */
igb: offer a PTP Hardware Clock instead of the timecompare method This commit removes the legacy timecompare code from the igb driver and offers a tunable PHC instead. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-16 10:55:37 +00:00
igb_ptp_init(adapter);
igb: fix hw timestamping Hardware timestamping for Intel 82580 didn't work in either 2.6.36 or 2.6.37. Comparing it to Intel's igb-2.4.12 I found that the timecounter_init clock/counter initialization was done too early. Signed-off-by: Anders Berggren <andfers@halon.se> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-04 07:32:32 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
/* print bus type/speed/width info */
net: convert more to %pM A number of places still use %02x:...:%02x because it's in debug statements or for no real reason. Make a few of them use %pM. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-27 17:47:26 -07:00
dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
netdev->name,
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
((hw->bus.speed == e1000_bus_speed_2500) ? "2.5Gb/s" :
igb: add support for reporting 5GT/s during probe on PCIe Gen2 This change corrects the fact that we were not reporting Gen2 link speeds when we were in fact connected at Gen2 rates. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 01:02:40 +00:00
(hw->bus.speed == e1000_bus_speed_5000) ? "5.0Gb/s" :
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
"unknown"),
igb: add support for x2 link width configurations When device is on PCIe link trained as x2 the driver is currently reporting link width as "unknown". The original patch provided by Myron adds the x2 link support and my changes are cosmetic to clean up the readability of the conditional operators. Based on work by: Myron Stowe <myron.stowe@hp.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 20:38:00 +00:00
((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" :
(hw->bus.width == e1000_bus_width_pcie_x2) ? "Width x2" :
(hw->bus.width == e1000_bus_width_pcie_x1) ? "Width x1" :
"unknown"),
net: convert more to %pM A number of places still use %02x:...:%02x because it's in debug statements or for no real reason. Make a few of them use %pM. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-27 17:47:26 -07:00
netdev->dev_addr);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Add new function to read part number from EEPROM in string format New adapters will have part numbers stored in string format rather than simple hex format. This function will read part number formats in either hex or string. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-22 17:17:21 +00:00
ret_val = igb_read_part_string(hw, part_str, E1000_PBANUM_LENGTH);
if (ret_val)
strcpy(part_str, "Unknown");
dev_info(&pdev->dev, "%s: PBA No: %s\n", netdev->name, part_str);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
dev_info(&pdev->dev,
"Using %s interrupts. %d rx queue(s), %d tx queue(s)\n",
adapter->msix_entries ? "MSI-X" :
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
(adapter->flags & IGB_FLAG_HAS_MSI) ? "MSI" : "legacy",
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->num_rx_queues, adapter->num_tx_queues);
igb: Add Energy Efficient Ethernet (EEE) for i350 devices. This patch adds the EEE feature for i350 devices, enabled by default. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-11 20:42:13 -08:00
switch (hw->mac.type) {
case e1000_i350:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
case e1000_i211:
igb: Add Energy Efficient Ethernet (EEE) for i350 devices. This patch adds the EEE feature for i350 devices, enabled by default. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-11 20:42:13 -08:00
igb_set_eee_i350(hw);
break;
default:
break;
}
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
pm_runtime_put_noidle(&pdev->dev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
err_register:
igb_release_hw_control(adapter);
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
memset(&adapter->i2c_adap, 0, sizeof(adapter->i2c_adap));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err_eeprom:
if (!igb_check_reset_block(hw))
igb: do not use phy ops in ethtool test cleanup for non-copper parts Currently the igb driver is experiencing a panic due to a null function pointer being used during the cleanup of the ethtool looback test on fiber/serdes parts. This patch prevents that and adds a check prior to calling any phy function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21 21:30:24 -08:00
igb_reset_phy(hw);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (hw->flash_address)
iounmap(hw->flash_address);
err_sw_init:
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_clear_interrupt_scheme(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
iounmap(hw->hw_addr);
err_ioremap:
free_netdev(netdev);
err_alloc_etherdev:
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
pci_release_selected_regions(pdev,
pci_select_bars(pdev, IORESOURCE_MEM));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err_pci_reg:
err_dma:
pci_disable_device(pdev);
return err;
}
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
#ifdef CONFIG_PCI_IOV
static int igb_disable_sriov(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
/* reclaim resources allocated to VFs */
if (adapter->vf_data) {
/* disable iov and allow time for transactions to clear */
if (igb_vfs_are_assigned(adapter)) {
dev_warn(&pdev->dev,
"Cannot deallocate SR-IOV virtual functions while they are assigned - VFs will not be deallocated\n");
return -EPERM;
} else {
pci_disable_sriov(pdev);
msleep(500);
}
kfree(adapter->vf_data);
adapter->vf_data = NULL;
adapter->vfs_allocated_count = 0;
wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
wrfl();
msleep(100);
dev_info(&pdev->dev, "IOV Disabled\n");
/* Re-enable DMA Coalescing flag since IOV is turned off */
adapter->flags |= IGB_FLAG_DMAC;
}
return 0;
}
static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
int old_vfs = pci_num_vf(pdev);
int err = 0;
int i;
if (!num_vfs)
goto out;
else if (old_vfs && old_vfs == num_vfs)
goto out;
else if (old_vfs && old_vfs != num_vfs)
err = igb_disable_sriov(pdev);
if (err)
goto out;
if (num_vfs > 7) {
err = -EPERM;
goto out;
}
adapter->vfs_allocated_count = num_vfs;
adapter->vf_data = kcalloc(adapter->vfs_allocated_count,
sizeof(struct vf_data_storage), GFP_KERNEL);
/* if allocation failed then we do not support SR-IOV */
if (!adapter->vf_data) {
adapter->vfs_allocated_count = 0;
dev_err(&pdev->dev,
"Unable to allocate memory for VF Data Storage\n");
err = -ENOMEM;
goto out;
}
err = pci_enable_sriov(pdev, adapter->vfs_allocated_count);
if (err)
goto err_out;
dev_info(&pdev->dev, "%d VFs allocated\n",
adapter->vfs_allocated_count);
for (i = 0; i < adapter->vfs_allocated_count; i++)
igb_vf_configure(adapter, i);
/* DMA Coalescing is not supported in IOV mode. */
adapter->flags &= ~IGB_FLAG_DMAC;
goto out;
err_out:
kfree(adapter->vf_data);
adapter->vf_data = NULL;
adapter->vfs_allocated_count = 0;
out:
return err;
}
#endif
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
/*
* igb_remove_i2c - Cleanup I2C interface
* @adapter: pointer to adapter structure
*
*/
static void igb_remove_i2c(struct igb_adapter *adapter)
{
/* free the adapter bus structure */
i2c_del_adapter(&adapter->i2c_adap);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_remove - Device Removal Routine
* @pdev: PCI device information struct
*
* igb_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device. The could be caused by a
* Hot-Plug event, or because the driver is going to be removed from
* memory.
**/
net/intel: remove __dev* attributes CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Carolyn Wyborny <carolyn.wyborny@intel.com> Cc: Don Skidmore <donald.c.skidmore@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Cc: Alex Duyck <alexander.h.duyck@intel.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: Tushar Dave <tushar.n.dave@intel.com> Cc: e1000-devel@lists.sourceforge.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-03 09:24:25 -05:00
static void igb_remove(struct pci_dev *pdev)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
struct e1000_hw *hw = &adapter->hw;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
pm_runtime_get_noresume(&pdev->dev);
igb: Enable hwmon data output for thermal sensors via I2C. Some of our adapters have internal sensors that report thermal data. This patch enables reporting of that data via sysfs. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:01:42 +00:00
#ifdef CONFIG_IGB_HWMON
igb_sysfs_exit(adapter);
#endif
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
igb_remove_i2c(adapter);
igb: Update PTP function names/variables and locations. Where possible, move PTP-related functions into igb_ptp.c and update the names of functions and variables to match the established coding style in the files and specify that they are PTP-specific. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-10 05:40:44 +00:00
igb_ptp_stop(adapter);
igb[v],ixgbe: don't use flush_scheduled_work() All three drivers use flush_scheduled_work() similarly during driver detach. Replace it with explicit cancels. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: e1000-devel@lists.sourceforge.net Cc: netdev@vger.kernel.org
2010-12-12 16:45:14 +01:00
/*
* The watchdog timer may be rescheduled, so explicitly
* disable watchdog from being rescheduled.
*/
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
set_bit(__IGB_DOWN, &adapter->state);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
igb[v],ixgbe: don't use flush_scheduled_work() All three drivers use flush_scheduled_work() similarly during driver detach. Replace it with explicit cancels. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: e1000-devel@lists.sourceforge.net Cc: netdev@vger.kernel.org
2010-12-12 16:45:14 +01:00
cancel_work_sync(&adapter->reset_task);
cancel_work_sync(&adapter->watchdog_task);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
if (adapter->flags & IGB_FLAG_DCA_ENABLED) {
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
dev_info(&pdev->dev, "DCA disabled\n");
dca_remove_requester(&pdev->dev);
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
adapter->flags &= ~IGB_FLAG_DCA_ENABLED;
igb: remove unused defines This patch removes all of the unused defines from the .h files contained in igb. For some defines there was a use and so I plugged them into the correct locations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-15 23:59:44 -08:00
wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE);
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
}
#endif
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
igb_release_hw_control(adapter);
unregister_netdev(netdev);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_clear_interrupt_scheme(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: this patch addes the sr-iov enablement option via num_vfs parameter This code adds a module parameter called num_vfs which defines if the driver should attempt to use sr-iov and if so how many VFs should be enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:30 -08:00
#ifdef CONFIG_PCI_IOV
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
igb_disable_sriov(pdev);
igb: this patch addes the sr-iov enablement option via num_vfs parameter This code adds a module parameter called num_vfs which defines if the driver should attempt to use sr-iov and if so how many VFs should be enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:30 -08:00
#endif
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
igb: remove unnecessary adapter->hw calls when just hw-> will do. There were several spots in the code making calls to adapter->hw when they could have just been accessing hw-> directly. I cleaned up the spots where this was visibly apparent. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:20:31 +00:00
iounmap(hw->hw_addr);
if (hw->flash_address)
iounmap(hw->flash_address);
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
pci_release_selected_regions(pdev,
pci_select_bars(pdev, IORESOURCE_MEM));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: VFTA Table Fix for i350 devices Due to a hardware problem, writes to the VFTA register can theoretically fail. Although the likelihood of this is very low. This patch adds a shadow vfta in the adapter struct for reading and adds new write functions for these devices to work around the problem. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 00:13:49 +00:00
kfree(adapter->shadow_vfta);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
free_netdev(netdev);
e1000e/igb/ixgbe: Don't report an error if devices don't support AER The only error returned by pci_{en,dis}able_pcie_error_reporting() is -EIO which simply means that Advanced Error Reporting is not supported. There is no need to report that, so remove the error check from e1000e, igb and ixgbe. Signed-off-by: Frans Pop <elendil@planet.nl> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-02 10:04:12 -07:00
pci_disable_pcie_error_reporting(pdev);
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
pci_disable_device(pdev);
}
igb: move vf init into a seperate function This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:53 +00:00
/**
* igb_probe_vfs - Initialize vf data storage and add VFs to pci config space
* @adapter: board private structure to initialize
*
* This function initializes the vf specific data storage and then attempts to
* allocate the VFs. The reason for ordering it this way is because it is much
* mor expensive time wise to disable SR-IOV than it is to allocate and free
* the memory for the VFs.
**/
net/intel: remove __dev* attributes CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Carolyn Wyborny <carolyn.wyborny@intel.com> Cc: Don Skidmore <donald.c.skidmore@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Cc: Alex Duyck <alexander.h.duyck@intel.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: Tushar Dave <tushar.n.dave@intel.com> Cc: e1000-devel@lists.sourceforge.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-03 09:24:25 -05:00
static void igb_probe_vfs(struct igb_adapter *adapter)
igb: move vf init into a seperate function This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:53 +00:00
{
#ifdef CONFIG_PCI_IOV
struct pci_dev *pdev = adapter->pdev;
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: move vf init into a seperate function This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:53 +00:00
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
/* Virtualization features not supported on i210 family. */
if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211))
return;
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
igb_enable_sriov(pdev, max_vfs);
pci_sriov_set_totalvfs(pdev, 7);
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
igb: move vf init into a seperate function This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:53 +00:00
#endif /* CONFIG_PCI_IOV */
}
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
static void igb_init_queue_configuration(struct igb_adapter *adapter)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct e1000_hw *hw = &adapter->hw;
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
u32 max_rss_queues;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
/* Determine the maximum number of RSS queues supported. */
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
switch (hw->mac.type) {
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
case e1000_i211:
max_rss_queues = IGB_MAX_RX_QUEUES_I211;
break;
case e1000_82575:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
max_rss_queues = IGB_MAX_RX_QUEUES_82575;
break;
case e1000_i350:
/* I350 cannot do RSS and SR-IOV at the same time */
if (!!adapter->vfs_allocated_count) {
max_rss_queues = 1;
break;
}
/* fall through */
case e1000_82576:
if (!!adapter->vfs_allocated_count) {
max_rss_queues = 2;
break;
}
/* fall through */
case e1000_82580:
default:
max_rss_queues = IGB_MAX_RX_QUEUES;
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
break;
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
}
adapter->rss_queues = min_t(u32, max_rss_queues, num_online_cpus());
/* Determine if we need to pair queues. */
switch (hw->mac.type) {
case e1000_82575:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i211:
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
/* Device supports enough interrupts without queue pairing. */
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
break;
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
case e1000_82576:
/*
* If VFs are going to be allocated with RSS queues then we
* should pair the queues in order to conserve interrupts due
* to limited supply.
*/
if ((adapter->rss_queues > 1) &&
(adapter->vfs_allocated_count > 6))
adapter->flags |= IGB_FLAG_QUEUE_PAIRS;
/* fall through */
case e1000_82580:
case e1000_i350:
case e1000_i210:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
default:
igb: Streamline RSS queue and queue pairing assignment logic. Rather than spread out the complexity of the RSS queue and queue pairing assignment logic, place it all in one location for simplicity and readability. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-18 04:54:58 +00:00
/*
* If rss_queues > half of max_rss_queues, pair the queues in
* order to conserve interrupts due to limited supply.
*/
if (adapter->rss_queues > (max_rss_queues / 2))
adapter->flags |= IGB_FLAG_QUEUE_PAIRS;
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
break;
}
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
}
/**
* igb_sw_init - Initialize general software structures (struct igb_adapter)
* @adapter: board private structure to initialize
*
* igb_sw_init initializes the Adapter private data structure.
* Fields are initialized based on PCI device information and
* OS network device settings (MTU size).
**/
static int igb_sw_init(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
pci_read_config_word(pdev, PCI_COMMAND, &hw->bus.pci_cmd_word);
/* set default ring sizes */
adapter->tx_ring_count = IGB_DEFAULT_TXD;
adapter->rx_ring_count = IGB_DEFAULT_RXD;
/* set default ITR values */
adapter->rx_itr_setting = IGB_DEFAULT_ITR;
adapter->tx_itr_setting = IGB_DEFAULT_ITR;
/* set default work limits */
adapter->tx_work_limit = IGB_DEFAULT_TX_WORK;
adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN +
VLAN_HLEN;
adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
spin_lock_init(&adapter->stats64_lock);
#ifdef CONFIG_PCI_IOV
switch (hw->mac.type) {
case e1000_82576:
case e1000_i350:
if (max_vfs > 7) {
dev_warn(&pdev->dev,
"Maximum of 7 VFs per PF, using max\n");
adapter->vfs_allocated_count = 7;
} else
adapter->vfs_allocated_count = max_vfs;
if (adapter->vfs_allocated_count)
dev_warn(&pdev->dev,
"Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n");
break;
default:
break;
}
#endif /* CONFIG_PCI_IOV */
igb_init_queue_configuration(adapter);
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
igb: VFTA Table Fix for i350 devices Due to a hardware problem, writes to the VFTA register can theoretically fail. Although the likelihood of this is very low. This patch adds a shadow vfta in the adapter struct for reading and adds new write functions for these devices to work around the problem. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 00:13:49 +00:00
/* Setup and initialize a copy of the hw vlan table array */
ethernet: Remove unnecessary alloc/OOM messages, alloc cleanups alloc failures already get standardized OOM messages and a dump_stack. Convert kzalloc's with multiplies to kcalloc. Convert kmalloc's with multiplies to kmalloc_array. Fix a few whitespace defects. Convert a constant 6 to ETH_ALEN. Use parentheses around sizeof. Convert vmalloc/memset to vzalloc. Remove now unused size variables. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-03 17:43:58 +00:00
adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32),
GFP_ATOMIC);
igb: VFTA Table Fix for i350 devices Due to a hardware problem, writes to the VFTA register can theoretically fail. Although the likelihood of this is very low. This patch adds a shadow vfta in the adapter struct for reading and adds new write functions for these devices to work around the problem. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 00:13:49 +00:00
igb: move vf init into a seperate function This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:53 +00:00
/* This call may decrease the number of queues */
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
if (igb_init_interrupt_scheme(adapter, true)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
return -ENOMEM;
}
igb: move vf init into a seperate function This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:53 +00:00
igb_probe_vfs(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Explicitly disable IRQ since the NIC can be in any state. */
igb_irq_disable(adapter);
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
if (hw->mac.type >= e1000_i350)
igb: Add DMA Coalescing feature to driver This patch add DMA Coalescing which is a power-saving feature that coalesces DMA writes in order to stay in a low-power state as much as possible. Feature is disabled by default. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-11 20:43:54 -08:00
adapter->flags &= ~IGB_FLAG_DMAC;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
set_bit(__IGB_DOWN, &adapter->state);
return 0;
}
/**
* igb_open - Called when a network interface is made active
* @netdev: network interface device structure
*
* Returns 0 on success, negative value on failure
*
* The open entry point is called when a network interface is made
* active by the system (IFF_UP). At this point all resources needed
* for transmit and receive operations are allocated, the interrupt
* handler is registered with the OS, the watchdog timer is started,
* and the stack is notified that the interface is ready.
**/
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int __igb_open(struct net_device *netdev, bool resuming)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int err;
int i;
/* disallow open during test */
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
if (test_bit(__IGB_TESTING, &adapter->state)) {
WARN_ON(resuming);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -EBUSY;
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
}
if (!resuming)
pm_runtime_get_sync(&pdev->dev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: fix link down inital state As reported by Andrew Lutomirski <amluto@gmail.com> All the intel wired ethernet drivers were calling netif_carrier_off and netif_stop_queue (or variants) before calling register_netdevice This is incorrect behavior as was pointed out by davem, and causes ifconfig and friends to report a strange state before first link after the driver was loaded, since without a netif_carrier_off, the stack assumes carrier_on, but before register_netdev, netlink messages are not sent out telling link state. This apparently confused *some* versions of networkmanager. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reported-by: Andrew Lutomirski <amluto@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-17 20:44:32 +00:00
netif_carrier_off(netdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* allocate transmit descriptors */
err = igb_setup_all_tx_resources(adapter);
if (err)
goto err_setup_tx;
/* allocate receive descriptors */
err = igb_setup_all_rx_resources(adapter);
if (err)
goto err_setup_rx;
igb: Power down link when interface is down This changes the behavior of the driver to power down the link when the associated interface is down, unless management is enabled. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:59 +00:00
igb_power_up_link(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* before we allocate an interrupt, we must be ready to handle it.
* Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
* as soon as we call pci_request_irq, so we have to setup our
* clean_rx handler before we do so. */
igb_configure(adapter);
err = igb_request_irq(adapter);
if (err)
goto err_req_irq;
igb: Move the calls to set the Tx and Rx queues into igb_open This change helps to address locking issues seen with netif_set_real_num_tx_queues and netif_set_real_num_rx_queues when used in the igb_set_interrupt_capability function. To resolve these locking issues I have moved the two function calls into __igb_open so that they can be called while the RTNL lock is held. An added advantage to this is that the number of queues is not updated until the last possible moment so if there are any issues in allocating MSI-X interrupts or resources for the rings we have time to change the values prior to updating the netdev. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:22 +00:00
/* Notify the stack of the actual queue counts. */
err = netif_set_real_num_tx_queues(adapter->netdev,
adapter->num_tx_queues);
if (err)
goto err_set_queues;
err = netif_set_real_num_rx_queues(adapter->netdev,
adapter->num_rx_queues);
if (err)
goto err_set_queues;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* From here on the code is the same as igb_up() */
clear_bit(__IGB_DOWN, &adapter->state);
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
for (i = 0; i < adapter->num_q_vectors; i++)
napi_enable(&(adapter->q_vector[i]->napi));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Clear any pending interrupts. */
rd32(E1000_ICR);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
igb_irq_enable(adapter);
igb: delay VF reset notification until after interrupts are enabed This update delays the VF reset notification until after interrupts are enabled. Otherwise there is a chance of having the VF try to reset itself too soon and being ignored by the PF as a result. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:45 +00:00
/* notify VFs that reset has been completed */
if (adapter->vfs_allocated_count) {
u32 reg_data = rd32(E1000_CTRL_EXT);
reg_data |= E1000_CTRL_EXT_PFRSTD;
wr32(E1000_CTRL_EXT, reg_data);
}
igb/ixgbe/e1000e: resolve tx multiqueue bug With the recent changes to tx mutiqueue, igb/ixgbe/e1000e was not calling netif_tx_start_all_queues() before calling netif_tx_wake_all_queues(). This causes an issue during loading of the driver. In addition, updated e1000e to use the updated tx mutliqueue api. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18 04:33:03 -07:00
netif_tx_start_all_queues(netdev);
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
if (!resuming)
pm_runtime_put(&pdev->dev);
igb: cleanup interrupt enablement in regards to msix_other This patch changes a few things so that instead of firing a link status interrupt directly the get_link_status bit is set and the watchdog is scheduled. In addition the mailbox bit is now only enabled if VFs are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:59 +00:00
/* start the watchdog. */
hw->mac.get_link_status = 1;
schedule_work(&adapter->watchdog_task);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
igb: Move the calls to set the Tx and Rx queues into igb_open This change helps to address locking issues seen with netif_set_real_num_tx_queues and netif_set_real_num_rx_queues when used in the igb_set_interrupt_capability function. To resolve these locking issues I have moved the two function calls into __igb_open so that they can be called while the RTNL lock is held. An added advantage to this is that the number of queues is not updated until the last possible moment so if there are any issues in allocating MSI-X interrupts or resources for the rings we have time to change the values prior to updating the netdev. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:22 +00:00
err_set_queues:
igb_free_irq(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
err_req_irq:
igb_release_hw_control(adapter);
igb: Power down link when interface is down This changes the behavior of the driver to power down the link when the associated interface is down, unless management is enabled. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:59 +00:00
igb_power_down_link(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_free_all_rx_resources(adapter);
err_setup_rx:
igb_free_all_tx_resources(adapter);
err_setup_tx:
igb_reset(adapter);
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
if (!resuming)
pm_runtime_put(&pdev->dev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return err;
}
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_open(struct net_device *netdev)
{
return __igb_open(netdev, false);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_close - Disables a network interface
* @netdev: network interface device structure
*
* Returns 0, this is not allowed to fail
*
* The close entry point is called when an interface is de-activated
* by the OS. The hardware is still under the driver's control, but
* needs to be disabled. A global MAC reset is issued to stop the
* hardware, and all transmit and receive resources are freed.
**/
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int __igb_close(struct net_device *netdev, bool suspending)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
WARN_ON(test_bit(__IGB_RESETTING, &adapter->state));
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
if (!suspending)
pm_runtime_get_sync(&pdev->dev);
igb_down(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_free_irq(adapter);
igb_free_all_tx_resources(adapter);
igb_free_all_rx_resources(adapter);
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
if (!suspending)
pm_runtime_put_sync(&pdev->dev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
}
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_close(struct net_device *netdev)
{
return __igb_close(netdev, false);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_setup_tx_resources - allocate Tx resources (Descriptors)
* @tx_ring: tx descriptor ring (for a specific queue) to setup
*
* Return 0 on success, negative on failure
**/
igb: add pci device pointer to ring structure This patch adds a pci device pointer to the ring structure. The main use of this pointer is for memory mapping/unmapping of the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:47 +00:00
int igb_setup_tx_resources(struct igb_ring *tx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
struct device *dev = tx_ring->dev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int size;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
size = sizeof(struct igb_tx_buffer) * tx_ring->count;
igb: Remove logic that was doing NUMA pseudo-aware allocations This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:27:55 +00:00
tx_ring->tx_buffer_info = vzalloc(size);
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
if (!tx_ring->tx_buffer_info)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
goto err;
/* round up to nearest 4K */
igb: transition driver to only using advanced descriptors Currently the driver uses advanced descriptors for its main functionality, but then uses legacy when testing. This patch changes this so that advanced descriptors are used throughout and all mentions of legacy descriptors are removed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-16 00:00:20 -08:00
tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tx_ring->size = ALIGN(tx_ring->size, 4096);
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size,
&tx_ring->dma, GFP_KERNEL);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!tx_ring->desc)
goto err;
tx_ring->next_to_use = 0;
tx_ring->next_to_clean = 0;
igb: Use node specific allocations for the q_vectors and rings This change is meant to update the ring and vector allocations so that they are per node instead of allocating everything on the node that ifconfig/modprobe is called on. By doing this we can cut down significantly on cross node traffic. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:20 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
err:
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
vfree(tx_ring->tx_buffer_info);
igb: Remove logic that was doing NUMA pseudo-aware allocations This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:27:55 +00:00
tx_ring->tx_buffer_info = NULL;
dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n");
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -ENOMEM;
}
/**
* igb_setup_all_tx_resources - wrapper to allocate Tx resources
* (Descriptors) for all queues
* @adapter: board private structure
*
* Return 0 on success, negative on failure
**/
static int igb_setup_all_tx_resources(struct igb_adapter *adapter)
{
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int i, err = 0;
for (i = 0; i < adapter->num_tx_queues; i++) {
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
err = igb_setup_tx_resources(adapter->tx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err) {
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
dev_err(&pdev->dev,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
"Allocation for Tx Queue %u failed\n", i);
for (i--; i >= 0; i--)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_free_tx_resources(adapter->tx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
}
}
return err;
}
/**
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
* igb_setup_tctl - configure the transmit control registers
* @adapter: Board private structure
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
**/
igb: re-use ring configuration code in ethtool testing Since all of the ring code is now specific to the ring instead of the adapter struct it is possible to cut a large section of code out of the ethtool testing configuraiton since we can just use the existing functions to configure the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:23 +00:00
void igb_setup_tctl(struct igb_adapter *adapter)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct e1000_hw *hw = &adapter->hw;
u32 tctl;
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
/* disable queue 0 which is enabled by default on 82575 and 82576 */
wr32(E1000_TXDCTL(0), 0);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Program the Transmit Control Register */
tctl = rd32(E1000_TCTL);
tctl &= ~E1000_TCTL_CT;
tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
igb_config_collision_dist(hw);
/* Enable transmits */
tctl |= E1000_TCTL_EN;
wr32(E1000_TCTL, tctl);
}
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
/**
* igb_configure_tx_ring - Configure transmit ring after Reset
* @adapter: board private structure
* @ring: tx ring to configure
*
* Configure a transmit ring after a reset.
**/
igb: re-use ring configuration code in ethtool testing Since all of the ring code is now specific to the ring instead of the adapter struct it is possible to cut a large section of code out of the ethtool testing configuraiton since we can just use the existing functions to configure the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:23 +00:00
void igb_configure_tx_ring(struct igb_adapter *adapter,
struct igb_ring *ring)
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
{
struct e1000_hw *hw = &adapter->hw;
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
u32 txdctl = 0;
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
u64 tdba = ring->dma;
int reg_idx = ring->reg_idx;
/* disable the queue */
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
wr32(E1000_TXDCTL(reg_idx), 0);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
wrfl();
mdelay(10);
wr32(E1000_TDLEN(reg_idx),
ring->count * sizeof(union e1000_adv_tx_desc));
wr32(E1000_TDBAL(reg_idx),
tdba & 0x00000000ffffffffULL);
wr32(E1000_TDBAH(reg_idx), tdba >> 32);
igb: change the head and tail offsets into pointers Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:27 +00:00
ring->tail = hw->hw_addr + E1000_TDT(reg_idx);
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
wr32(E1000_TDH(reg_idx), 0);
igb: change the head and tail offsets into pointers Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:27 +00:00
writel(0, ring->tail);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
txdctl |= IGB_TX_PTHRESH;
txdctl |= IGB_TX_HTHRESH << 8;
txdctl |= IGB_TX_WTHRESH << 16;
txdctl |= E1000_TXDCTL_QUEUE_ENABLE;
wr32(E1000_TXDCTL(reg_idx), txdctl);
}
/**
* igb_configure_tx - Configure transmit Unit after Reset
* @adapter: board private structure
*
* Configure the Tx unit of the MAC after a reset.
**/
static void igb_configure_tx(struct igb_adapter *adapter)
{
int i;
for (i = 0; i < adapter->num_tx_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_configure_tx_ring(adapter, adapter->tx_ring[i]);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_setup_rx_resources - allocate Rx resources (Descriptors)
* @rx_ring: rx descriptor ring (for a specific queue) to setup
*
* Returns 0 on success, negative on failure
**/
igb: add pci device pointer to ring structure This patch adds a pci device pointer to the ring structure. The main use of this pointer is for memory mapping/unmapping of the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:47 +00:00
int igb_setup_rx_resources(struct igb_ring *rx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
struct device *dev = rx_ring->dev;
igb: Remove logic that was doing NUMA pseudo-aware allocations This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:27:55 +00:00
int size;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
size = sizeof(struct igb_rx_buffer) * rx_ring->count;
igb: Remove logic that was doing NUMA pseudo-aware allocations This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:27:55 +00:00
rx_ring->rx_buffer_info = vzalloc(size);
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
if (!rx_ring->rx_buffer_info)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
goto err;
/* Round up to nearest 4K */
igb: Remove logic that was doing NUMA pseudo-aware allocations This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:27:55 +00:00
rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rx_ring->size = ALIGN(rx_ring->size, 4096);
igb: Combine q_vector and ring allocation into a single function This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:17 +00:00
rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size,
&rx_ring->dma, GFP_KERNEL);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!rx_ring->desc)
goto err;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
rx_ring->next_to_alloc = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rx_ring->next_to_clean = 0;
rx_ring->next_to_use = 0;
return 0;
err:
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
vfree(rx_ring->rx_buffer_info);
rx_ring->rx_buffer_info = NULL;
igb: Remove logic that was doing NUMA pseudo-aware allocations This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:27:55 +00:00
dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n");
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -ENOMEM;
}
/**
* igb_setup_all_rx_resources - wrapper to allocate Rx resources
* (Descriptors) for all queues
* @adapter: board private structure
*
* Return 0 on success, negative on failure
**/
static int igb_setup_all_rx_resources(struct igb_adapter *adapter)
{
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int i, err = 0;
for (i = 0; i < adapter->num_rx_queues; i++) {
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
err = igb_setup_rx_resources(adapter->rx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err) {
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
dev_err(&pdev->dev,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
"Allocation for Rx Queue %u failed\n", i);
for (i--; i >= 0; i--)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_free_rx_resources(adapter->rx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
}
}
return err;
}
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
/**
* igb_setup_mrqc - configure the multiple receive queue control registers
* @adapter: Board private structure
**/
static void igb_setup_mrqc(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 mrqc, rxcsum;
igb: Change how we populate the RSS indirection table This patch cleans up our RSS indirection table configuration so that we generate the same table regardless of CPU endianness. In addition it changes the table setup so that instead of doing a modulo based setup it is instead a divisor based setup. The advantage to this is that we should be able to take the Rx hash and compute the Rx queue with very little CPU overhead if needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:11 +00:00
u32 j, num_rx_queues, shift = 0;
igb: Simplify how we populate the RSS key Instead of storing the RSS key as a character array we can simplify the configuration by making it a u32 array. This allows us to just write one value per register without any unnecessary operations to construct the value. This change will produce the same exact key, the only difference is that I translated the u8 array to a u32 array which will be correctly ordered on writes to hardware by the cpu_to_le32 operations that are built into the writel calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:16 +00:00
static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741,
0xB08FA343, 0xCB2BCAD0, 0xB4307BAE,
0xA32DCB77, 0x0CF23080, 0x3BB7426A,
0xFA01ACBE };
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
/* Fill out hash function seeds */
igb: Simplify how we populate the RSS key Instead of storing the RSS key as a character array we can simplify the configuration by making it a u32 array. This allows us to just write one value per register without any unnecessary operations to construct the value. This change will produce the same exact key, the only difference is that I translated the u8 array to a u32 array which will be correctly ordered on writes to hardware by the cpu_to_le32 operations that are built into the writel calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:16 +00:00
for (j = 0; j < 10; j++)
wr32(E1000_RSSRK(j), rsskey[j]);
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
num_rx_queues = adapter->rss_queues;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
igb: Change how we populate the RSS indirection table This patch cleans up our RSS indirection table configuration so that we generate the same table regardless of CPU endianness. In addition it changes the table setup so that instead of doing a modulo based setup it is instead a divisor based setup. The advantage to this is that we should be able to take the Rx hash and compute the Rx queue with very little CPU overhead if needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:11 +00:00
switch (hw->mac.type) {
case e1000_82575:
shift = 6;
break;
case e1000_82576:
/* 82576 supports 2 RSS queues for SR-IOV */
if (adapter->vfs_allocated_count) {
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
shift = 3;
num_rx_queues = 2;
}
igb: Change how we populate the RSS indirection table This patch cleans up our RSS indirection table configuration so that we generate the same table regardless of CPU endianness. In addition it changes the table setup so that instead of doing a modulo based setup it is instead a divisor based setup. The advantage to this is that we should be able to take the Rx hash and compute the Rx queue with very little CPU overhead if needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:11 +00:00
break;
default:
break;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
}
igb: Change how we populate the RSS indirection table This patch cleans up our RSS indirection table configuration so that we generate the same table regardless of CPU endianness. In addition it changes the table setup so that instead of doing a modulo based setup it is instead a divisor based setup. The advantage to this is that we should be able to take the Rx hash and compute the Rx queue with very little CPU overhead if needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:11 +00:00
/*
* Populate the indirection table 4 entries at a time. To do this
* we are generating the results for n and n+2 and then interleaving
* those with the results with n+1 and n+3.
*/
for (j = 0; j < 32; j++) {
/* first pass generates n and n+2 */
u32 base = ((j * 0x00040004) + 0x00020000) * num_rx_queues;
u32 reta = (base & 0x07800780) >> (7 - shift);
/* second pass generates n+1 and n+3 */
base += 0x00010001 * num_rx_queues;
reta |= (base & 0x07800780) << (1 + shift);
wr32(E1000_RETA(j), reta);
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
}
/*
* Disable raw packet checksumming so that RSS hash is placed in
* descriptor on writeback. No need to enable TCP/UDP/IP checksum
* offloads as they are enabled by default
*/
rxcsum = rd32(E1000_RXCSUM);
rxcsum |= E1000_RXCSUM_PCSD;
if (adapter->hw.mac.type >= e1000_82576)
/* Enable Receive Checksum Offload for SCTP */
rxcsum |= E1000_RXCSUM_CRCOFL;
/* Don't need to set TUOFL or IPOFL, they default to 1 */
wr32(E1000_RXCSUM, rxcsum);
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
igb: Support for modifying UDP RSS flow hashing This patch provides ability to enable or disable UDP RSS hashing. It gives users option of generating RSS hash based on the UDP source and destination ports numbers. Currently, UDP flow hash is always disabled in igb-driver. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:21 +00:00
/* Generate RSS hash based on packet types, TCP/UDP
* port numbers and/or IPv4/v6 src and dst addresses
*/
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
mrqc = E1000_MRQC_RSS_FIELD_IPV4 |
E1000_MRQC_RSS_FIELD_IPV4_TCP |
E1000_MRQC_RSS_FIELD_IPV6 |
E1000_MRQC_RSS_FIELD_IPV6_TCP |
E1000_MRQC_RSS_FIELD_IPV6_TCP_EX;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
igb: Support for modifying UDP RSS flow hashing This patch provides ability to enable or disable UDP RSS hashing. It gives users option of generating RSS hash based on the UDP source and destination ports numbers. Currently, UDP flow hash is always disabled in igb-driver. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:21 +00:00
if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV4_UDP)
mrqc |= E1000_MRQC_RSS_FIELD_IPV4_UDP;
if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV6_UDP)
mrqc |= E1000_MRQC_RSS_FIELD_IPV6_UDP;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
/* If VMDq is enabled then we set the appropriate mode for that, else
* we default to RSS so that an RSS hash is calculated per packet even
* if we are only using one queue */
if (adapter->vfs_allocated_count) {
if (hw->mac.type > e1000_82575) {
/* Set the default pool for the PF's first queue */
u32 vtctl = rd32(E1000_VT_CTL);
vtctl &= ~(E1000_VT_CTL_DEFAULT_POOL_MASK |
E1000_VT_CTL_DISABLE_DEF_POOL);
vtctl |= adapter->vfs_allocated_count <<
E1000_VT_CTL_DEFAULT_POOL_SHIFT;
wr32(E1000_VT_CTL, vtctl);
}
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
if (adapter->rss_queues > 1)
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
mrqc |= E1000_MRQC_ENABLE_VMDQ_RSS_2Q;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
else
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
mrqc |= E1000_MRQC_ENABLE_VMDQ;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
} else {
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
if (hw->mac.type != e1000_i211)
mrqc |= E1000_MRQC_ENABLE_RSS_4Q;
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
}
igb_vmm_control(adapter);
wr32(E1000_MRQC, mrqc);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_setup_rctl - configure the receive control registers
* @adapter: Board private structure
**/
igb: re-use ring configuration code in ethtool testing Since all of the ring code is now specific to the ring instead of the adapter struct it is possible to cut a large section of code out of the ethtool testing configuraiton since we can just use the existing functions to configure the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:23 +00:00
void igb_setup_rctl(struct igb_adapter *adapter)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct e1000_hw *hw = &adapter->hw;
u32 rctl;
rctl = rd32(E1000_RCTL);
rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
igb: loopback bits not correctly cleared from RCTL register This change forces the bits to 0 by using an &= operation with an inverted mask of all options instead of using an |= with a value of 0. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-25 01:04:03 -08:00
rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: loopback bits not correctly cleared from RCTL register This change forces the bits to 0 by using an &= operation with an inverted mask of all options instead of using an |= with a value of 0. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-25 01:04:03 -08:00
rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF |
igb: remove unnecessary adapter->hw calls when just hw-> will do. There were several spots in the code making calls to adapter->hw when they could have just been accessing hw-> directly. I cleaned up the spots where this was visibly apparent. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:20:31 +00:00
(hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: reenable CRC stripping in hardware We can remove a clunky workaround for not having the hardware strip the CRC. 82575 silicon as well as the older PCI Express e1000e hardware all work OK in this respect. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:08:29 -07:00
/*
* enable stripping of CRC. It's unlikely this will break BMC
* redirection as it did with e1000. Newer features require
* that the HW strips the CRC.
igb: misc whitespace/formatting cleanups This patch is intended to hold several whitespace, formatting, and comment cleanups that have been found while cleaning up the igb driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 18:16:59 +00:00
*/
igb: reenable CRC stripping in hardware We can remove a clunky workaround for not having the hardware strip the CRC. 82575 silicon as well as the older PCI Express e1000e hardware all work OK in this respect. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:08:29 -07:00
rctl |= E1000_RCTL_SECRC;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
/* disable store bad packets and clear size bits. */
igb: prevent skb_over panic w/ mtu smaller than 1K A panic has been observed with frame sizes smaller than 1K. This has been root caused to the hardware spanning larger frames across multiple buffers and then reporting the original frame size in the first descriptor. To prevent this we can enable set the LPE bit which in turn will restrict packet sizes to those set in the RLPML register. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31 00:52:57 -08:00
rctl &= ~(E1000_RCTL_SBP | E1000_RCTL_SZ_256);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: remove rx_ps_hdr_len This patch removes the rx_ps_hdr_len which isn't really needed since we can now use rx_buffer_len less than 1K to indicate that we are in a packet split mode. We also don't need it since we always use a half page for the data buffers when receiving so we always know the size to map/unmap. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:48 +00:00
/* enable LPE to prevent packets larger than max_frame_size */
rctl |= E1000_RCTL_LPE;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: move SRRCTL register configuration into ring specific config The SRRCTL register exists per ring. Instead of configuring all of them in the RCTL configuration which is meant to be global it makes more sense to move this out into the ring specific configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:07 +00:00
/* disable queue 0 to prevent tail write w/o re-config */
wr32(E1000_RXDCTL(0), 0);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add pf side of VMDq support Add the pf portion of vmdq support. This provides enough support so that VMDq is enabled, and the pf is functional without enabling vfs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:44 -08:00
/* Attention!!! For SR-IOV PF driver operations you must enable
* queue drop for all VF and PF queues to prevent head of line blocking
* if an un-trusted VF does not provide descriptors to hardware.
*/
if (adapter->vfs_allocated_count) {
/* set all queue drop enable bits */
wr32(E1000_QDE, ALL_QUEUES);
}
igb: Support RX-ALL feature flag. This allows the NIC to receive all frames available, including those with bad FCS, un-matched vlans, ethernet control frames, and more. Tested by sending frames with bad FCS. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-06 09:41:58 +00:00
/* This is useful for sniffing bad packets. */
if (adapter->netdev->features & NETIF_F_RXALL) {
/* UPE and MPE will be handled by normal PROMISC logic
* in e1000e_set_rx_mode */
rctl |= (E1000_RCTL_SBP | /* Receive bad packets */
E1000_RCTL_BAM | /* RX All Bcast Pkts */
E1000_RCTL_PMCF); /* RX All MAC Ctrl Pkts */
rctl &= ~(E1000_RCTL_VFE | /* Disable VLAN filter */
E1000_RCTL_DPF | /* Allow filtered pause */
E1000_RCTL_CFIEN); /* Dis VLAN CFIEN Filter */
/* Do not mess with E1000_CTRL_VME, it affects transmit as well,
* and that breaks VLANs.
*/
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wr32(E1000_RCTL, rctl);
}
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
int vfn)
{
struct e1000_hw *hw = &adapter->hw;
u32 vmolr;
/* if it isn't the PF check to see if VFs are enabled and
* increase the size to support vlan tags */
if (vfn < adapter->vfs_allocated_count &&
adapter->vf_data[vfn].vlans_enabled)
size += VLAN_TAG_SIZE;
vmolr = rd32(E1000_VMOLR(vfn));
vmolr &= ~E1000_VMOLR_RLPML_MASK;
vmolr |= size | E1000_VMOLR_LPE;
wr32(E1000_VMOLR(vfn), vmolr);
return 0;
}
igb: add pf side of VMDq support Add the pf portion of vmdq support. This provides enough support so that VMDq is enabled, and the pf is functional without enabling vfs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:44 -08:00
/**
* igb_rlpml_set - set maximum receive packet size
* @adapter: board private structure
*
* Configure maximum receivable packet size.
**/
static void igb_rlpml_set(struct igb_adapter *adapter)
{
igb: Update max_frame_size to account for an optional VLAN tag if present This patch modifies the max_frame_size in order account for an optional VLAN tag. In order to support this we must also increase the MAX_STD_JUMBO_FRAME_SIZE to account for the 4 extra bytes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:32 +00:00
u32 max_frame_size = adapter->max_frame_size;
igb: add pf side of VMDq support Add the pf portion of vmdq support. This provides enough support so that VMDq is enabled, and the pf is functional without enabling vfs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:44 -08:00
struct e1000_hw *hw = &adapter->hw;
u16 pf_id = adapter->vfs_allocated_count;
if (pf_id) {
igb_set_vf_rlpml(adapter, max_frame_size, pf_id);
igb: Update max_frame_size to account for an optional VLAN tag if present This patch modifies the max_frame_size in order account for an optional VLAN tag. In order to support this we must also increase the MAX_STD_JUMBO_FRAME_SIZE to account for the 4 extra bytes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:32 +00:00
/*
* If we're in VMDQ or SR-IOV mode, then set global RLPML
* to our max jumbo frame size, in case we need to enable
* jumbo frames on one of the rings later.
* This will not pass over-length frames into the default
* queue because it's gated by the VMOLR.RLPML.
*/
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
max_frame_size = MAX_JUMBO_FRAME_SIZE;
igb: add pf side of VMDq support Add the pf portion of vmdq support. This provides enough support so that VMDq is enabled, and the pf is functional without enabling vfs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:44 -08:00
}
wr32(E1000_RLPML, max_frame_size);
}
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
static inline void igb_set_vmolr(struct igb_adapter *adapter,
int vfn, bool aupe)
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
{
struct e1000_hw *hw = &adapter->hw;
u32 vmolr;
/*
* This register exists only on 82576 and newer so if we are older then
* we should exit and do nothing
*/
if (hw->mac.type < e1000_82576)
return;
vmolr = rd32(E1000_VMOLR(vfn));
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
vmolr |= E1000_VMOLR_STRVLAN; /* Strip vlan tags */
if (aupe)
vmolr |= E1000_VMOLR_AUPE; /* Accept untagged packets */
else
vmolr &= ~(E1000_VMOLR_AUPE); /* Tagged packets ONLY */
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
/* clear all bits that might not be set */
vmolr &= ~(E1000_VMOLR_BAM | E1000_VMOLR_RSSE);
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:19 +00:00
if (adapter->rss_queues > 1 && vfn == adapter->vfs_allocated_count)
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
vmolr |= E1000_VMOLR_RSSE; /* enable RSS */
/*
* for VMDq only allow the VFs and pool 0 to accept broadcast and
* multicast packets
*/
if (vfn <= adapter->vfs_allocated_count)
vmolr |= E1000_VMOLR_BAM; /* Accept broadcast */
wr32(E1000_VMOLR(vfn), vmolr);
}
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
/**
* igb_configure_rx_ring - Configure a receive ring after Reset
* @adapter: board private structure
* @ring: receive ring to be configured
*
* Configure the Rx unit of the MAC after a reset.
**/
igb: re-use ring configuration code in ethtool testing Since all of the ring code is now specific to the ring instead of the adapter struct it is possible to cut a large section of code out of the ethtool testing configuraiton since we can just use the existing functions to configure the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:23 +00:00
void igb_configure_rx_ring(struct igb_adapter *adapter,
struct igb_ring *ring)
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
{
struct e1000_hw *hw = &adapter->hw;
u64 rdba = ring->dma;
int reg_idx = ring->reg_idx;
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
u32 srrctl = 0, rxdctl = 0;
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
/* disable the queue */
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
wr32(E1000_RXDCTL(reg_idx), 0);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
/* Set DMA base address registers */
wr32(E1000_RDBAL(reg_idx),
rdba & 0x00000000ffffffffULL);
wr32(E1000_RDBAH(reg_idx), rdba >> 32);
wr32(E1000_RDLEN(reg_idx),
ring->count * sizeof(union e1000_adv_rx_desc));
/* initialize head and tail */
igb: change the head and tail offsets into pointers Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:27 +00:00
ring->tail = hw->hw_addr + E1000_RDT(reg_idx);
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
wr32(E1000_RDH(reg_idx), 0);
igb: change the head and tail offsets into pointers Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:27 +00:00
writel(0, ring->tail);
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
igb: move SRRCTL register configuration into ring specific config The SRRCTL register exists per ring. Instead of configuring all of them in the RCTL configuration which is meant to be global it makes more sense to move this out into the ring specific configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:07 +00:00
/* set descriptor configuration */
igb: drop support for single buffer mode This change removes support for single buffer mode from igb and makes the driver function in packet split always. The advantage to doing this is that we can reduce total memory allocation overhead significantly as we will only need to allocate one 1K slab per packet and then make use of a reusable half page instead of allocating a 2K slab per packet. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:38 +00:00
srrctl = IGB_RX_HDR_LEN << E1000_SRRCTL_BSIZEHDRSIZE_SHIFT;
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
srrctl |= IGB_RX_BUFSZ >> E1000_SRRCTL_BSIZEPKT_SHIFT;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
igb: Fix features that are currently 82580 only and should also be i350 This change allows support for per packet timesync and global device reset on the i350 adapter. These features were supported on both 82580 and i350 however it looks like several checks where not updated and as such the i350 support was not enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:55 +00:00
if (hw->mac.type >= e1000_82580)
igb: add per-packet timestamping This patch adds support for per-packet timestamping for the 82580 adapter. The rx timestamp code is also pulled out of the inlined rx hotpath and instead moved to a seperate function. This version adds a comment explaining the per-packet timestamping code added to igb_hwtstamp_ioctl(). Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-26 11:36:47 +00:00
srrctl |= E1000_SRRCTL_TIMESTAMP;
igb: only support SRRCTL_DROP_EN when using multiple queues The SRRCTL.DROP_EN bit should only be set when we are supporting multiple queues. This bit is meant to prevent head of line blocking and is unnecessary in the single queue case. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:03:38 +00:00
/* Only set Drop Enable if we are supporting multiple queues */
if (adapter->vfs_allocated_count || adapter->num_rx_queues > 1)
srrctl |= E1000_SRRCTL_DROP_EN;
igb: move SRRCTL register configuration into ring specific config The SRRCTL register exists per ring. Instead of configuring all of them in the RCTL configuration which is meant to be global it makes more sense to move this out into the ring specific configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:07 +00:00
wr32(E1000_SRRCTL(reg_idx), srrctl);
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
/* set filtering for VMDQ pools */
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
igb_set_vmolr(adapter, reg_idx & 0x7, true);
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
rxdctl |= IGB_RX_PTHRESH;
rxdctl |= IGB_RX_HTHRESH << 8;
rxdctl |= IGB_RX_WTHRESH << 16;
igb: Update RXDCTL/TXDCTL configurations This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX performance by allowing back write-backs on all hardware other than 82576. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:27 +00:00
/* enable receive descriptor fetching */
rxdctl |= E1000_RXDCTL_QUEUE_ENABLE;
igb: move the tx and rx ring specific config into seperate functions This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:50:29 +00:00
wr32(E1000_RXDCTL(reg_idx), rxdctl);
}
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
static void igb_set_rx_buffer_len(struct igb_adapter *adapter,
struct igb_ring *rx_ring)
{
#define IGB_MAX_BUILD_SKB_SIZE \
(SKB_WITH_OVERHEAD(IGB_RX_BUFSZ) - \
(NET_SKB_PAD + NET_IP_ALIGN + IGB_TS_HDR_LEN))
/* set build_skb flag */
if (adapter->max_frame_size <= IGB_MAX_BUILD_SKB_SIZE)
set_ring_build_skb_enabled(rx_ring);
else
clear_ring_build_skb_enabled(rx_ring);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_configure_rx - Configure receive Unit after Reset
* @adapter: board private structure
*
* Configure the Rx unit of the MAC after a reset.
**/
static void igb_configure_rx(struct igb_adapter *adapter)
{
drivers/net/igb: fix sparse warning: symbol shadows an earlier one Impact: Move variable declaration as far inner as possible. Fix this sparse warning: drivers/net/igb/igb_main.c:1895:21: warning: symbol 'j' shadows an earlier one drivers/net/igb/igb_main.c:1855:16: originally declared here Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-18 19:36:04 -08:00
int i;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
/* set UTA to appropriate mode */
igb_set_uta(adapter);
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
/* set the correct pool for the PF default MAC address in entry 0 */
igb_rar_set_qsel(adapter, adapter->hw.mac.addr, 0,
adapter->vfs_allocated_count);
igb: move the multiple receive queue configuration into seperate function This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:25 +00:00
/* Setup the HW Rx Head and Tail Descriptor Pointers and
* the Base and Length of the Rx Descriptor Ring */
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
for (i = 0; i < adapter->num_rx_queues; i++) {
struct igb_ring *rx_ring = adapter->rx_ring[i];
igb_set_rx_buffer_len(adapter, rx_ring);
igb_configure_rx_ring(adapter, rx_ring);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_free_tx_resources - Free Tx Resources per Queue
* @tx_ring: Tx descriptor ring for a specific queue
*
* Free all transmit software resources
**/
igb: Fix tx/rx_ring_count parameters for igb on suspend/resume/ring resize When suspending the device the ring structure is freed which causes it to loose track of the count. To resolve this we need to move the ring count outside of the ring structure and store it in the adapter struct. In addition to resolving the suspend/resume issue this patch also addresses issues seen in the event of memory allocation errors causing uneven ring sizes on multiple queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20 00:48:10 -08:00
void igb_free_tx_resources(struct igb_ring *tx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: Remove adapter struct from these function call parameters Simplify a bunch of calls to these functions by moving the adapter struct out of the function arguments since that is not needed. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 10:59:48 -07:00
igb_clean_tx_ring(tx_ring);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
vfree(tx_ring->tx_buffer_info);
tx_ring->tx_buffer_info = NULL;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
/* if not set, then don't free */
if (!tx_ring->desc)
return;
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
dma_free_coherent(tx_ring->dev, tx_ring->size,
tx_ring->desc, tx_ring->dma);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tx_ring->desc = NULL;
}
/**
* igb_free_all_tx_resources - Free Tx Resources for All Queues
* @adapter: board private structure
*
* Free all transmit software resources
**/
static void igb_free_all_tx_resources(struct igb_adapter *adapter)
{
int i;
for (i = 0; i < adapter->num_tx_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_free_tx_resources(adapter->tx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
void igb_unmap_and_free_tx_resource(struct igb_ring *ring,
struct igb_tx_buffer *tx_buffer)
{
if (tx_buffer->skb) {
dev_kfree_skb_any(tx_buffer->skb);
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
if (dma_unmap_len(tx_buffer, len))
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
dma_unmap_single(ring->dev,
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_addr(tx_buffer, dma),
dma_unmap_len(tx_buffer, len),
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
DMA_TO_DEVICE);
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
} else if (dma_unmap_len(tx_buffer, len)) {
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
dma_unmap_page(ring->dev,
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_addr(tx_buffer, dma),
dma_unmap_len(tx_buffer, len),
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
DMA_TO_DEVICE);
}
tx_buffer->next_to_watch = NULL;
tx_buffer->skb = NULL;
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_len_set(tx_buffer, len, 0);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* buffer_info must be completely set up in the transmit path */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_clean_tx_ring - Free Tx Buffers
* @tx_ring: ring to be cleaned
**/
igb: Remove adapter struct from these function call parameters Simplify a bunch of calls to these functions by moving the adapter struct out of the function arguments since that is not needed. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 10:59:48 -07:00
static void igb_clean_tx_ring(struct igb_ring *tx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_tx_buffer *buffer_info;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
unsigned long size;
igb: avoid unnecessary conversions from u16 to int There are a number of places where we have values that are stored as u16 but are being converted to int unnecessarily. In order to avoid that we should convert all variables that deal with the next_to_clean, next_to_use, and count to u16 values. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:26 +00:00
u16 i;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
if (!tx_ring->tx_buffer_info)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return;
/* Free all the Tx ring sk_buffs */
for (i = 0; i < tx_ring->count; i++) {
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
buffer_info = &tx_ring->tx_buffer_info[i];
igb: add pci device pointer to ring structure This patch adds a pci device pointer to the ring structure. The main use of this pointer is for memory mapping/unmapping of the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:47 +00:00
igb_unmap_and_free_tx_resource(tx_ring, buffer_info);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb, ixgbe: netdev_tx_reset_queue incorrectly called from tx init path igb and ixgbe incorrectly call netdev_tx_reset_queue() from i{gb|xgbe}_clean_tx_ring() this sort of works in most cases except when the number of real tx queues changes. When the number of real tx queues changes netdev_tx_reset_queue() only gets called on the new number of queues so when we reduce the number of queues we risk triggering the watchdog timer and repeated device resets. So this is not only a cosmetic issue but causes real bugs. For example enabling/disabling DCB or FCoE in ixgbe will trigger this. CC: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: John Bishop <johnx.bishop@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-23 12:22:39 +00:00
netdev_tx_reset_queue(txring_txq(tx_ring));
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
size = sizeof(struct igb_tx_buffer) * tx_ring->count;
memset(tx_ring->tx_buffer_info, 0, size);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Zero out the descriptor ring */
memset(tx_ring->desc, 0, tx_ring->size);
tx_ring->next_to_use = 0;
tx_ring->next_to_clean = 0;
}
/**
* igb_clean_all_tx_rings - Free Tx Buffers for all queues
* @adapter: board private structure
**/
static void igb_clean_all_tx_rings(struct igb_adapter *adapter)
{
int i;
for (i = 0; i < adapter->num_tx_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_clean_tx_ring(adapter->tx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_free_rx_resources - Free Rx Resources
* @rx_ring: ring to clean the resources from
*
* Free all receive software resources
**/
igb: Fix tx/rx_ring_count parameters for igb on suspend/resume/ring resize When suspending the device the ring structure is freed which causes it to loose track of the count. To resolve this we need to move the ring count outside of the ring structure and store it in the adapter struct. In addition to resolving the suspend/resume issue this patch also addresses issues seen in the event of memory allocation errors causing uneven ring sizes on multiple queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20 00:48:10 -08:00
void igb_free_rx_resources(struct igb_ring *rx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: Remove adapter struct from these function call parameters Simplify a bunch of calls to these functions by moving the adapter struct out of the function arguments since that is not needed. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 10:59:48 -07:00
igb_clean_rx_ring(rx_ring);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
vfree(rx_ring->rx_buffer_info);
rx_ring->rx_buffer_info = NULL;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
/* if not set, then don't free */
if (!rx_ring->desc)
return;
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
dma_free_coherent(rx_ring->dev, rx_ring->size,
rx_ring->desc, rx_ring->dma);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rx_ring->desc = NULL;
}
/**
* igb_free_all_rx_resources - Free Rx Resources for All Queues
* @adapter: board private structure
*
* Free all receive software resources
**/
static void igb_free_all_rx_resources(struct igb_adapter *adapter)
{
int i;
for (i = 0; i < adapter->num_rx_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_free_rx_resources(adapter->rx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_clean_rx_ring - Free Rx Buffers per Queue
* @rx_ring: ring to free buffers from
**/
igb: Remove adapter struct from these function call parameters Simplify a bunch of calls to these functions by moving the adapter struct out of the function arguments since that is not needed. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 10:59:48 -07:00
static void igb_clean_rx_ring(struct igb_ring *rx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
unsigned long size;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
u16 i;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
if (rx_ring->skb)
dev_kfree_skb(rx_ring->skb);
rx_ring->skb = NULL;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
if (!rx_ring->rx_buffer_info)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return;
igb: cleanup code related to ring resource allocation and free This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:49:20 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Free all the Rx ring sk_buffs */
for (i = 0; i < rx_ring->count; i++) {
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_rx_buffer *buffer_info = &rx_ring->rx_buffer_info[i];
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
if (!buffer_info->page)
continue;
dma_unmap_page(rx_ring->dev,
buffer_info->dma,
PAGE_SIZE,
DMA_FROM_DEVICE);
__free_page(buffer_info->page);
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
buffer_info->page = NULL;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
size = sizeof(struct igb_rx_buffer) * rx_ring->count;
memset(rx_ring->rx_buffer_info, 0, size);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Zero out the descriptor ring */
memset(rx_ring->desc, 0, rx_ring->size);
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
rx_ring->next_to_alloc = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rx_ring->next_to_clean = 0;
rx_ring->next_to_use = 0;
}
/**
* igb_clean_all_rx_rings - Free Rx Buffers for all queues
* @adapter: board private structure
**/
static void igb_clean_all_rx_rings(struct igb_adapter *adapter)
{
int i;
for (i = 0; i < adapter->num_rx_queues; i++)
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
igb_clean_rx_ring(adapter->rx_ring[i]);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_set_mac - Change the Ethernet Address of the NIC
* @netdev: network interface device structure
* @p: pointer to an address structure
*
* Returns 0 on success, negative on failure
**/
static int igb_set_mac(struct net_device *netdev, void *p)
{
struct igb_adapter *adapter = netdev_priv(netdev);
igb: remove unnecessary adapter->hw calls when just hw-> will do. There were several spots in the code making calls to adapter->hw when they could have just been accessing hw-> directly. I cleaned up the spots where this was visibly apparent. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:20:31 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct sockaddr *addr = p;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
igb: remove unnecessary adapter->hw calls when just hw-> will do. There were several spots in the code making calls to adapter->hw when they could have just been accessing hw-> directly. I cleaned up the spots where this was visibly apparent. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:20:31 +00:00
memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
/* set the correct pool for the new PF MAC address in entry 0 */
igb_rar_set_qsel(adapter, hw->mac.addr, 0,
adapter->vfs_allocated_count);
igb: add pf side of VMDq support Add the pf portion of vmdq support. This provides enough support so that VMDq is enabled, and the pf is functional without enabling vfs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:44 -08:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
}
/**
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
* igb_write_mc_addr_list - write multicast addresses to MTA
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* @netdev: network interface device structure
*
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
* Writes multicast address list to the MTA hash table.
* Returns: -ENOMEM on failure
* 0 on no addresses written
* X on writing X addresses to MTA
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
**/
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
static int igb_write_mc_addr_list(struct net_device *netdev)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
net: convert multicast list to list_head Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-01 21:22:57 +00:00
struct netdev_hw_addr *ha;
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
u8 *mta_list;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int i;
net: use netdev_mc_count and netdev_mc_empty when appropriate This patch replaces dev->mc_count in all drivers (hopefully I didn't miss anything). Used spatch and did small tweaks and conding style changes when it was suitable. Jirka Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 04:30:35 +00:00
if (netdev_mc_empty(netdev)) {
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
/* nothing to program, so clear mc list */
igb_update_mc_addr_list(hw, NULL, 0);
igb_restore_vf_multicasts(adapter);
return 0;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
net: use netdev_mc_count and netdev_mc_empty when appropriate This patch replaces dev->mc_count in all drivers (hopefully I didn't miss anything). Used spatch and did small tweaks and conding style changes when it was suitable. Jirka Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 04:30:35 +00:00
mta_list = kzalloc(netdev_mc_count(netdev) * 6, GFP_ATOMIC);
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
if (!mta_list)
return -ENOMEM;
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
/* The shared function expects a packed array of only addresses. */
net: convert multiple drivers to use netdev_for_each_mc_addr, part4 Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-22 09:22:26 +00:00
i = 0;
net: convert multicast list to list_head Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-01 21:22:57 +00:00
netdev_for_each_mc_addr(ha, netdev)
memcpy(mta_list + (i++ * ETH_ALEN), ha->addr, ETH_ALEN);
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
igb_update_mc_addr_list(hw, mta_list, i);
kfree(mta_list);
net: use netdev_mc_count and netdev_mc_empty when appropriate This patch replaces dev->mc_count in all drivers (hopefully I didn't miss anything). Used spatch and did small tweaks and conding style changes when it was suitable. Jirka Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 04:30:35 +00:00
return netdev_mc_count(netdev);
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
}
/**
* igb_write_uc_addr_list - write unicast addresses to RAR table
* @netdev: network interface device structure
*
* Writes unicast address list to the RAR table.
* Returns: -ENOMEM on failure/insufficient address space
* 0 on no addresses written
* X on writing X addresses to the RAR table
**/
static int igb_write_uc_addr_list(struct net_device *netdev)
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
unsigned int vfn = adapter->vfs_allocated_count;
unsigned int rar_entries = hw->mac.rar_entry_count - (vfn + 1);
int count = 0;
/* return ENOMEM indicating insufficient memory for addresses */
net: use helpers to access uc list V2 This patch introduces three macros to work with uc list from net drivers. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25 13:36:10 -08:00
if (netdev_uc_count(netdev) > rar_entries)
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
return -ENOMEM;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
net: use helpers to access uc list V2 This patch introduces three macros to work with uc list from net drivers. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25 13:36:10 -08:00
if (!netdev_uc_empty(netdev) && rar_entries) {
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
struct netdev_hw_addr *ha;
net: use helpers to access uc list V2 This patch introduces three macros to work with uc list from net drivers. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25 13:36:10 -08:00
netdev_for_each_uc_addr(ha, netdev) {
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
if (!rar_entries)
break;
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
igb_rar_set_qsel(adapter, ha->addr,
rar_entries--,
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
vfn);
count++;
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
}
}
/* write the addresses in reverse order to avoid write combining */
for (; rar_entries > 0 ; rar_entries--) {
wr32(E1000_RAH(rar_entries), 0);
wr32(E1000_RAL(rar_entries), 0);
}
wrfl();
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
return count;
}
/**
* igb_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
* @netdev: network interface device structure
*
* The set_rx_mode entry point is called whenever the unicast or multicast
* address lists or the network interface flags are updated. This routine is
* responsible for configuring the hardware for proper unicast, multicast,
* promiscuous mode, and all-multi behavior.
**/
static void igb_set_rx_mode(struct net_device *netdev)
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
unsigned int vfn = adapter->vfs_allocated_count;
u32 rctl, vmolr = 0;
int count;
/* Check for Promiscuous and All Multicast modes */
rctl = rd32(E1000_RCTL);
/* clear the effected bits */
rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_VFE);
if (netdev->flags & IFF_PROMISC) {
rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
vmolr |= (E1000_VMOLR_ROPE | E1000_VMOLR_MPME);
} else {
if (netdev->flags & IFF_ALLMULTI) {
rctl |= E1000_RCTL_MPE;
vmolr |= E1000_VMOLR_MPME;
} else {
/*
* Write addresses to the MTA, if the attempt fails
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
* then we should just turn on promiscuous mode so
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
* that we can at least receive multicast traffic
*/
count = igb_write_mc_addr_list(netdev);
if (count < 0) {
rctl |= E1000_RCTL_MPE;
vmolr |= E1000_VMOLR_MPME;
} else if (count) {
vmolr |= E1000_VMOLR_ROMPE;
}
}
/*
* Write addresses to available RAR registers, if there is not
* sufficient space to store all the addresses then enable
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
* unicast promiscuous mode
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
*/
count = igb_write_uc_addr_list(netdev);
if (count < 0) {
rctl |= E1000_RCTL_UPE;
vmolr |= E1000_VMOLR_ROPE;
}
rctl |= E1000_RCTL_VFE;
igb: move all multicast addresses into multicast table array This patch moves all of the multicast addresses out of the free Receive address registers and instead programs them all into the multicast table array. As a result the multicast filtering may not be as precise, but it also greatly reduces the overhead for multicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:54 +00:00
}
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
wr32(E1000_RCTL, rctl);
igb: move all multicast addresses into multicast table array This patch moves all of the multicast addresses out of the free Receive address registers and instead programs them all into the multicast table array. As a result the multicast filtering may not be as precise, but it also greatly reduces the overhead for multicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:54 +00:00
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
/*
* In order to support SR-IOV and eventually VMDq it is necessary to set
* the VMOLR to enable the appropriate modes. Without this workaround
* we will have issues with VLAN tag stripping not being done for frames
* that are only arriving because we are the default pool
*/
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
if ((hw->mac.type < e1000_82576) || (hw->mac.type > e1000_i350))
igb: move all multicast addresses into multicast table array This patch moves all of the multicast addresses out of the free Receive address registers and instead programs them all into the multicast table array. As a result the multicast filtering may not be as precise, but it also greatly reduces the overhead for multicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:54 +00:00
return;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
vmolr |= rd32(E1000_VMOLR(vfn)) &
~(E1000_VMOLR_ROPE | E1000_VMOLR_MPME | E1000_VMOLR_ROMPE);
wr32(E1000_VMOLR(vfn), vmolr);
igb: move all multicast addresses into multicast table array This patch moves all of the multicast addresses out of the free Receive address registers and instead programs them all into the multicast table array. As a result the multicast filtering may not be as precise, but it also greatly reduces the overhead for multicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:54 +00:00
igb_restore_vf_multicasts(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Add Anti-spoofing feature support Add support for the anti-spoofing feature in the HW. Packets from VF devices with spoofed MAC addresses or VLAN tags will be blocked and an event generated. When the watchdog task runs it will call a function to check if any spoof events occurred. If an event was detected then a warning message is dumped to the system log. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 02:08:26 +00:00
static void igb_check_wvbr(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 wvbr = 0;
switch (hw->mac.type) {
case e1000_82576:
case e1000_i350:
if (!(wvbr = rd32(E1000_WVBR)))
return;
break;
default:
break;
}
adapter->wvbr |= wvbr;
}
#define IGB_STAGGERED_QUEUE_OFFSET 8
static void igb_spoof_check(struct igb_adapter *adapter)
{
int j;
if (!adapter->wvbr)
return;
for(j = 0; j < adapter->vfs_allocated_count; j++) {
if (adapter->wvbr & (1 << j) ||
adapter->wvbr & (1 << (j + IGB_STAGGERED_QUEUE_OFFSET))) {
dev_warn(&adapter->pdev->dev,
"Spoof event(s) detected on VF %d\n", j);
adapter->wvbr &=
~((1 << j) |
(1 << (j + IGB_STAGGERED_QUEUE_OFFSET)));
}
}
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Need to wait a few seconds after link up to get diagnostic information from
* the phy */
static void igb_update_phy_info(unsigned long data)
{
struct igb_adapter *adapter = (struct igb_adapter *) data;
igb: do not use phy ops in ethtool test cleanup for non-copper parts Currently the igb driver is experiencing a panic due to a null function pointer being used during the cleanup of the ethtool looback test on fiber/serdes parts. This patch prevents that and adds a check prior to calling any phy function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21 21:30:24 -08:00
igb_get_phy_info(&adapter->hw);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add link check function Add a link check function to contain all activities related to verifying that the link is present. The current approach is a bit cludgy and needs to be cleaned up. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:24 +00:00
/**
* igb_has_link - check shared code for link and determine up/down
* @adapter: pointer to driver private info
**/
igb: Report link status in ethtool when interface is down With this change ethtool will correctly report link status when the interface is down. Currently ethtool reports the link as not detected when the interface is down. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:21 +00:00
bool igb_has_link(struct igb_adapter *adapter)
igb: add link check function Add a link check function to contain all activities related to verifying that the link is present. The current approach is a bit cludgy and needs to be cleaned up. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:24 +00:00
{
struct e1000_hw *hw = &adapter->hw;
bool link_active = false;
s32 ret_val = 0;
/* get_link_status is set on LSC (link status) interrupt or
* rx sequence error interrupt. get_link_status will stay
* false until the e1000_check_for_link establishes link
* for copper adapters ONLY
*/
switch (hw->phy.media_type) {
case e1000_media_type_copper:
if (hw->mac.get_link_status) {
ret_val = hw->mac.ops.check_for_link(hw);
link_active = !hw->mac.get_link_status;
} else {
link_active = true;
}
break;
case e1000_media_type_internal_serdes:
ret_val = hw->mac.ops.check_for_link(hw);
link_active = hw->mac.serdes_has_link;
break;
default:
case e1000_media_type_unknown:
break;
}
return link_active;
}
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
static bool igb_thermal_sensor_event(struct e1000_hw *hw, u32 event)
{
bool ret = false;
u32 ctrl_ext, thstat;
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
/* check for thermal sensor event on i350 copper only */
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
if (hw->mac.type == e1000_i350) {
thstat = rd32(E1000_THSTAT);
ctrl_ext = rd32(E1000_CTRL_EXT);
if ((hw->phy.media_type == e1000_media_type_copper) &&
!(ctrl_ext & E1000_CTRL_EXT_LINK_MODE_SGMII)) {
ret = !!(thstat & event);
}
}
return ret;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_watchdog - Timer Call-back
* @data: pointer to adapter cast into an unsigned long
**/
static void igb_watchdog(unsigned long data)
{
struct igb_adapter *adapter = (struct igb_adapter *)data;
/* Do the rest outside of interrupt context */
schedule_work(&adapter->watchdog_task);
}
static void igb_watchdog_task(struct work_struct *work)
{
struct igb_adapter *adapter = container_of(work,
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
struct igb_adapter,
watchdog_task);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
u32 link;
igb: force all queues to interrupt once every 2 seconds Set the EICS bit for each of the RX queues at least once every 2 seconds to prevent the rx queues from stalling. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-26 04:25:03 -07:00
int i;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add link check function Add a link check function to contain all activities related to verifying that the link is present. The current approach is a bit cludgy and needs to be cleaned up. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:24 +00:00
link = igb_has_link(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (link) {
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
/* Cancel scheduled suspend requests. */
pm_runtime_resume(netdev->dev.parent);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!netif_carrier_ok(netdev)) {
u32 ctrl;
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
hw->mac.ops.get_speed_and_duplex(hw,
&adapter->link_speed,
&adapter->link_duplex);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
ctrl = rd32(E1000_CTRL);
igb: link up/down messages must follow a specific format The system log messages created on a link status change need to follow a specific format to work with tools some customers use. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:21:39 -08:00
/* Links status message must follow this format */
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
printk(KERN_INFO "igb: %s NIC Link is Up %d Mbps %s "
"Duplex, Flow Control: %s\n",
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
netdev->name,
adapter->link_speed,
adapter->link_duplex == FULL_DUPLEX ?
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
"Full" : "Half",
(ctrl & E1000_CTRL_TFCE) &&
(ctrl & E1000_CTRL_RFCE) ? "RX/TX" :
(ctrl & E1000_CTRL_RFCE) ? "RX" :
(ctrl & E1000_CTRL_TFCE) ? "TX" : "None");
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
/* check for thermal sensor event */
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
if (igb_thermal_sensor_event(hw,
E1000_THSTAT_LINK_THROTTLE)) {
netdev_info(netdev, "The network adapter link "
"speed was downshifted because it "
"overheated\n");
igb: Add messaging for thermal sensor events on i350 devices This feature adds messaging to the link status change to notify the user if the device returned from a downshift or power off event due to the Thermal Sensor feature in i350 parts. Feature is only available on internal copper ports. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-12 08:59:47 +00:00
}
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
igb: do not modify tx_queue_len on link speed change Previously the driver tweaked txqueuelen to avoid false Tx hang reports seen at half duplex. This had the effect of overriding user set values on link change/reset. Testing shows that adjusting only the timeout factor is sufficient to prevent Tx hang reports at half duplex. Based on e1000e patch by Franco Fichtner <franco@lastsummer.de> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23 18:34:57 +00:00
/* adjust timeout factor according to speed/duplex */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->tx_timeout_factor = 1;
switch (adapter->link_speed) {
case SPEED_10:
adapter->tx_timeout_factor = 14;
break;
case SPEED_100:
/* maybe add some timeout factor ? */
break;
}
netif_carrier_on(netdev);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb_ping_all_vfs(adapter);
igb: add support for VF Transmit rate limit using iproute2 Implemented igb_ndo_set_vf_bw function which is being used by iproute2 tool. In addition, updated igb_ndo_get_vf_config function to show the actual rate limit to the user. The rate limitation can be configured only when the link is up. The rate limit value can be ranged between 0 and actual link speed measured in Mbps. A value of '0' disables the rate limit for this specific VF. iproute2 usage will be 'ip link set ethX vf Y rate Z'. After the command is made, the rate will be changed instantly. To view the current rate limit, use 'ip link show ethX'. The rates will be zeroed only upon driver reload or a link speed change. This feature is being supported only by 82576 device. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-08 02:28:46 +00:00
igb_check_vf_rate_limit(adapter);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: remove redundant timer updates and cleanup watchdog_task The igb watchdog task is modifying the watchdog timer twice duing a single run. It only needs to be called once to reschedule itself for 2 seconds from the last time it ran. In addition I removed the allocation of the mac_info structure since it is only called twice and is easier to access via the e1000_hw struct. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:50 +00:00
/* link state has changed, schedule phy info update */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!test_bit(__IGB_DOWN, &adapter->state))
mod_timer(&adapter->phy_info_timer,
round_jiffies(jiffies + 2 * HZ));
}
} else {
if (netif_carrier_ok(netdev)) {
adapter->link_speed = 0;
adapter->link_duplex = 0;
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
/* check for thermal sensor event */
igb: Convert printks to pr_<level> Based on original patch from Joe Perches <joe@perches.com> Use the current logging styles. pr_<level> conversions are now prefixed with "igb: " Correct a defect where the trailing NTU may have been printed on a separate line because of an interleaving hex_dump. Remove unnecessary uses of KERN_CONT and use single pr_info()s to avoid any possible output interleaving from other modules. Coalesce formats as appropriate. -v2 fix-up to make checkpatch.pl compliant and remove change to the copyright line CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-21 20:01:34 +00:00
if (igb_thermal_sensor_event(hw,
E1000_THSTAT_PWR_DOWN)) {
netdev_err(netdev, "The network adapter was "
"stopped because it overheated\n");
igb: Add messaging for thermal sensor events on i350 devices This feature adds messaging to the link status change to notify the user if the device returned from a downshift or power off event due to the Thermal Sensor feature in i350 parts. Feature is only available on internal copper ports. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-03-12 08:59:47 +00:00
}
igb: introduce igb_thermal_sensor_event for sensor checking The code for thermal sensor checking should be wrapped into a function. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-04-05 04:27:15 +00:00
igb: link up/down messages must follow a specific format The system log messages created on a link status change need to follow a specific format to work with tools some customers use. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:21:39 -08:00
/* Links status message must follow this format */
printk(KERN_INFO "igb: %s NIC Link is Down\n",
netdev->name);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
netif_carrier_off(netdev);
igb: remove redundant timer updates and cleanup watchdog_task The igb watchdog task is modifying the watchdog timer twice duing a single run. It only needs to be called once to reschedule itself for 2 seconds from the last time it ran. In addition I removed the allocation of the mac_info structure since it is only called twice and is easier to access via the e1000_hw struct. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:50 +00:00
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb_ping_all_vfs(adapter);
igb: remove redundant timer updates and cleanup watchdog_task The igb watchdog task is modifying the watchdog timer twice duing a single run. It only needs to be called once to reschedule itself for 2 seconds from the last time it ran. In addition I removed the allocation of the mac_info structure since it is only called twice and is easier to access via the e1000_hw struct. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:50 +00:00
/* link state has changed, schedule phy info update */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (!test_bit(__IGB_DOWN, &adapter->state))
mod_timer(&adapter->phy_info_timer,
round_jiffies(jiffies + 2 * HZ));
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
pm_schedule_suspend(netdev->dev.parent,
MSEC_PER_SEC * 5);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
spin_lock(&adapter->stats64_lock);
igb_update_stats(adapter, &adapter->stats64);
spin_unlock(&adapter->stats64_lock);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: check for packets on all tx rings when link is down We were previously only checking the first tx ring to see if it had any packets in it when the link when down. However we should be checking all of the rings so this patch makes it so that all of the rings are now being checked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:38:16 +00:00
for (i = 0; i < adapter->num_tx_queues; i++) {
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
struct igb_ring *tx_ring = adapter->tx_ring[i];
igb: check for packets on all tx rings when link is down We were previously only checking the first tx ring to see if it had any packets in it when the link when down. However we should be checking all of the rings so this patch makes it so that all of the rings are now being checked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:38:16 +00:00
if (!netif_carrier_ok(netdev)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* We've lost link, so the controller stops DMA,
* but we've got queued Tx work that's never going
* to get done, so reset controller to flush Tx.
* (Do the reset outside of interrupt context). */
igb: check for packets on all tx rings when link is down We were previously only checking the first tx ring to see if it had any packets in it when the link when down. However we should be checking all of the rings so this patch makes it so that all of the rings are now being checked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:38:16 +00:00
if (igb_desc_unused(tx_ring) + 1 < tx_ring->count) {
adapter->tx_timeout_count++;
schedule_work(&adapter->reset_task);
/* return immediately since reset is imminent */
return;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: check for packets on all tx rings when link is down We were previously only checking the first tx ring to see if it had any packets in it when the link when down. However we should be checking all of the rings so this patch makes it so that all of the rings are now being checked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:38:16 +00:00
/* Force detection of hung controller every watchdog period */
igb: move TX hang check flag into ring->flags This change moves the Tx hang check into the ring flags. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:19 +00:00
set_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags);
igb: check for packets on all tx rings when link is down We were previously only checking the first tx ring to see if it had any packets in it when the link when down. However we should be checking all of the rings so this patch makes it so that all of the rings are now being checked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:38:16 +00:00
}
igb: make tx hang check multiqueue, check eop descriptor This change makes the tx hang check run over all tx queues instead of just queue 0. Also have hang display info on EOP descriptor instead of the descriptor at the start of the chain. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:51 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Cause software interrupt to ensure rx ring is cleaned */
igb: force all queues to interrupt once every 2 seconds Set the EICS bit for each of the RX queues at least once every 2 seconds to prevent the rx queues from stalling. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-26 04:25:03 -07:00
if (adapter->msix_entries) {
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
u32 eics = 0;
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
for (i = 0; i < adapter->num_q_vectors; i++)
eics |= adapter->q_vector[i]->eims_value;
igb: force all queues to interrupt once every 2 seconds Set the EICS bit for each of the RX queues at least once every 2 seconds to prevent the rx queues from stalling. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-26 04:25:03 -07:00
wr32(E1000_EICS, eics);
} else {
wr32(E1000_ICS, E1000_ICS_RXDMT0);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Add Anti-spoofing feature support Add support for the anti-spoofing feature in the HW. Packets from VF devices with spoofed MAC addresses or VLAN tags will be blocked and an event generated. When the watchdog task runs it will call a function to check if any spoof events occurred. If an event was detected then a warning message is dumped to the system log. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 02:08:26 +00:00
igb_spoof_check(adapter);
igb: Add mechanism for detecting latched hardware Rx timestamp Add a check against possible Rx timestamp freezing in the hardware via watchdog mechanism. This situation can occur when an Rx timestamp has been latched, but the packet has been dropped because the Rx ring is full. Whenever a packet comes in that should be timestamped, the Rx timestamp gets latched into the hardware registers and we will store the jiffy value in the rx_ring. The watchdog will keep track of his own jiffy timer whenever there is no valid timestamp in the registers. If the watchdog detects a valid timestamp in the registers, meaning that no Rx packet has consumed it yet, it will check which time is most recent: the last time in the watchdog or any time in the rx_rings. If the most recent "event" was more than 5 seconds ago, it will flush the Rx timestamp and print a warning message to the syslog. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-13 07:20:35 +00:00
igb_ptp_rx_hang(adapter);
igb: Add Anti-spoofing feature support Add support for the anti-spoofing feature in the HW. Packets from VF devices with spoofed MAC addresses or VLAN tags will be blocked and an event generated. When the watchdog task runs it will call a function to check if any spoof events occurred. If an event was detected then a warning message is dumped to the system log. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 02:08:26 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Reset the timer */
if (!test_bit(__IGB_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer,
round_jiffies(jiffies + 2 * HZ));
}
enum latency_range {
lowest_latency = 0,
low_latency = 1,
bulk_latency = 2,
latency_invalid = 255
};
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
/**
* igb_update_ring_itr - update the dynamic ITR value based on packet size
*
* Stores a new ITR value based on strictly on packet size. This
* algorithm is less sophisticated than that used in igb_update_itr,
* due to the difficulty of synchronizing statistics across multiple
Fix spelling fuction -> function in comments To avoid more patches, I also fixed other spelling and grammar bugs when they were in the same or following line: successfull -> successful parse -> parses controler -> controller controlers -> controllers Cc: Jiri Kosina <trivial@kernel.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-06 21:11:15 +02:00
* receive rings. The divisors and thresholds used by this function
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
* were determined based on theoretical maximum wire speed and testing
* data, in order to minimize response time while increasing bulk
* throughput.
* This functionality is controlled by the InterruptThrottleRate module
* parameter (see igb_param.c)
* NOTE: This function is called only when operating in a multiqueue
* receive environment.
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
* @q_vector: pointer to q_vector
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
**/
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static void igb_update_ring_itr(struct igb_q_vector *q_vector)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
int new_val = q_vector->itr_val;
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
int avg_wire_size = 0;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
unsigned int packets;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
/* For non-gigabit speeds, just fix the interrupt rate at 4000
* ints/sec - ITR timer value of 120 ticks.
*/
if (adapter->link_speed != SPEED_1000) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
new_val = IGB_4K_ITR;
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
goto set_itr_val;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
packets = q_vector->rx.total_packets;
if (packets)
avg_wire_size = q_vector->rx.total_bytes / packets;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
packets = q_vector->tx.total_packets;
if (packets)
avg_wire_size = max_t(u32, avg_wire_size,
q_vector->tx.total_bytes / packets);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/* if avg_wire_size isn't set no work was done */
if (!avg_wire_size)
goto clear_counts;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
/* Add 24 bytes to size to account for CRC, preamble, and gap */
avg_wire_size += 24;
/* Don't starve jumbo frames */
avg_wire_size = min(avg_wire_size, 3000);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
/* Give a little boost to mid-size frames */
if ((avg_wire_size > 300) && (avg_wire_size < 1200))
new_val = avg_wire_size / 3;
else
new_val = avg_wire_size / 2;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
/* conservative mode (itr 3) eliminates the lowest_latency setting */
if (new_val < IGB_20K_ITR &&
((q_vector->rx.ring && adapter->rx_itr_setting == 3) ||
(!q_vector->rx.ring && adapter->tx_itr_setting == 3)))
new_val = IGB_20K_ITR;
igb: cap interrupts at 20K per queue when in itr mode 3 In order to maintain similar performance between MSI-X and legacy/MSI interrupts, this patch reduces the number of interrupts when receiving small packets to 20K when in interrupt throttle rate mode 3. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:03:19 +00:00
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
set_itr_val:
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (new_val != q_vector->itr_val) {
q_vector->itr_val = new_val;
q_vector->set_itr = 1;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
clear_counts:
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
q_vector->rx.total_bytes = 0;
q_vector->rx.total_packets = 0;
q_vector->tx.total_bytes = 0;
q_vector->tx.total_packets = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_update_itr - update the dynamic ITR value based on statistics
* Stores a new ITR value based on packets and byte
* counts during the last interrupt. The advantage of per interrupt
* computation is faster updates and more accurate ITR for the current
* traffic pattern. Constants in this function were computed
* based on theoretical maximum wire speed and thresholds were set based
* on testing data as well as attempting to minimize response time
* while increasing bulk throughput.
* this functionality is controlled by the InterruptThrottleRate module
* parameter (see igb_param.c)
* NOTE: These calculations are only valid when operating in a single-
* queue environment.
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
* @q_vector: pointer to q_vector
* @ring_container: ring info to update the itr for
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
**/
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
static void igb_update_itr(struct igb_q_vector *q_vector,
struct igb_ring_container *ring_container)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
unsigned int packets = ring_container->total_packets;
unsigned int bytes = ring_container->total_bytes;
u8 itrval = ring_container->itr;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
/* no packets, exit with status unchanged */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (packets == 0)
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
return;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
switch (itrval) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
case lowest_latency:
/* handle TSO and jumbo frames */
if (bytes/packets > 8000)
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = bulk_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
else if ((packets < 5) && (bytes > 512))
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = low_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
case low_latency: /* 50 usec aka 20000 ints/s */
if (bytes > 10000) {
/* this if handles the TSO accounting */
if (bytes/packets > 8000) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = bulk_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
} else if ((packets < 10) || ((bytes/packets) > 1200)) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = bulk_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
} else if ((packets > 35)) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = lowest_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
} else if (bytes/packets > 2000) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = bulk_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
} else if (packets <= 2 && bytes < 512) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = lowest_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
break;
case bulk_latency: /* 250 usec aka 4000 ints/s */
if (bytes > 25000) {
if (packets > 35)
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = low_latency;
igb: reduce size required to trigger low latency Update the Adaptive Interrupt Moderation algorithm so that the low latency state is triggered less easily to prevent high interrupt loads. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 18:17:21 +00:00
} else if (bytes < 1500) {
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itrval = low_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
break;
}
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
/* clear work counters since we have the values we need */
ring_container->total_bytes = 0;
ring_container->total_packets = 0;
/* write updated itr to ring container */
ring_container->itr = itrval;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
static void igb_set_itr(struct igb_q_vector *q_vector)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
u32 new_itr = q_vector->itr_val;
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
u8 current_itr = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
if (adapter->link_speed != SPEED_1000) {
current_itr = 0;
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
new_itr = IGB_4K_ITR;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
goto set_itr_now;
}
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
igb_update_itr(q_vector, &q_vector->tx);
igb_update_itr(q_vector, &q_vector->rx);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
current_itr = max(q_vector->rx.itr, q_vector->tx.itr);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
/* conservative mode (itr 3) eliminates the lowest_latency setting */
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
if (current_itr == lowest_latency &&
((q_vector->rx.ring && adapter->rx_itr_setting == 3) ||
(!q_vector->rx.ring && adapter->tx_itr_setting == 3)))
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
current_itr = low_latency;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
switch (current_itr) {
/* counts and packets in update_itr are dependent on these numbers */
case lowest_latency:
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
new_itr = IGB_70K_ITR; /* 70,000 ints/sec */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
case low_latency:
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
new_itr = IGB_20K_ITR; /* 20,000 ints/sec */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
case bulk_latency:
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
new_itr = IGB_4K_ITR; /* 4,000 ints/sec */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
break;
default:
break;
}
set_itr_now:
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (new_itr != q_vector->itr_val) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* this attempts to bias the interrupt rate towards Bulk
* by adding intermediate steps when interrupt rate is
* increasing */
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
new_itr = new_itr > q_vector->itr_val ?
max((new_itr * q_vector->itr_val) /
(new_itr + (q_vector->itr_val >> 2)),
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
new_itr) :
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
new_itr;
/* Don't write the value here; it resets the adapter's
* internal timer, and causes us to delay far longer than
* we should between interrupts. Instead, we write the ITR
* value at the beginning of the next interrupt so the timing
* ends up being correct.
*/
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
q_vector->itr_val = new_itr;
q_vector->set_itr = 1;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
igb: make local functions static Sparse caught two functions that were only being used in one file. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-18 22:13:26 +00:00
static void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens,
u32 type_tucmd, u32 mss_l4len_idx)
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
{
struct e1000_adv_tx_context_desc *context_desc;
u16 i = tx_ring->next_to_use;
context_desc = IGB_TX_CTXTDESC(tx_ring, i);
i++;
tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
/* set bits to identify this as an advanced context descriptor */
type_tucmd |= E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT;
/* For 82575, context index must be unique per ring. */
igb: Consolidate all of the ring feature flags into a single value This change moves all of the ring flags into a single value. The advantage to this is that there is one central area for all of these flags and they can all make use of the set/test bit operations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:36 +00:00
if (test_bit(IGB_RING_FLAG_TX_CTX_IDX, &tx_ring->flags))
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
mss_l4len_idx |= tx_ring->reg_idx << 4;
context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens);
context_desc->seqnum_seed = 0;
context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd);
context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx);
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
static int igb_tso(struct igb_ring *tx_ring,
struct igb_tx_buffer *first,
u8 *hdr_len)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
struct sk_buff *skb = first->skb;
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
u32 vlan_macip_lens, type_tucmd;
u32 mss_l4len_idx, l4len;
igb: Make TSO check for CHECKSUM_PARTIAL to avoid skb_is_gso check This change is meant to reduce the overhead for workloads that are not using either TSO or checksum offloads. Most of the time the compiler should jump ahead after failing this check to the VLAN check since in the igb_tx_csum call we start with that check as well. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:22 +00:00
if (skb->ip_summed != CHECKSUM_PARTIAL)
return 0;
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
if (!skb_is_gso(skb))
return 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (skb_header_cloned(skb)) {
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err)
return err;
}
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
/* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
type_tucmd = E1000_ADVTXD_TUCMD_L4T_TCP;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
if (first->protocol == __constant_htons(ETH_P_IP)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct iphdr *iph = ip_hdr(skb);
iph->tot_len = 0;
iph->check = 0;
tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
iph->daddr, 0,
IPPROTO_TCP,
0);
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
type_tucmd |= E1000_ADVTXD_TUCMD_IPV4;
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
first->tx_flags |= IGB_TX_FLAGS_TSO |
IGB_TX_FLAGS_CSUM |
IGB_TX_FLAGS_IPV4;
net: Fix IPv6 GSO type checks in Intel ethernet drivers Found this problem when testing IPv6 from a KVM guest to a remote host via e1000e device on the host. The following patch fixes the check for IPv6 GSO packet in Intel ethernet drivers to use skb_is_gso_v6(). SKB_GSO_DODGY is also set when packets are forwarded from a guest. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23 02:02:21 -08:00
} else if (skb_is_gso_v6(skb)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
ipv6_hdr(skb)->payload_len = 0;
tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
0, IPPROTO_TCP, 0);
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
first->tx_flags |= IGB_TX_FLAGS_TSO |
IGB_TX_FLAGS_CSUM;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
/* compute header lengths */
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
l4len = tcp_hdrlen(skb);
*hdr_len = skb_transport_offset(skb) + l4len;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
/* update gso size and bytecount with header size */
first->gso_segs = skb_shinfo(skb)->gso_segs;
first->bytecount += (first->gso_segs - 1) * *hdr_len;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* MSS L4LEN IDX */
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
mss_l4len_idx = l4len << E1000_ADVTXD_L4LEN_SHIFT;
mss_l4len_idx |= skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
/* VLAN MACLEN IPLEN */
vlan_macip_lens = skb_network_header_len(skb);
vlan_macip_lens |= skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT;
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
vlan_macip_lens |= first->tx_flags & IGB_TX_FLAGS_VLAN_MASK;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
igb_tx_ctxtdesc(tx_ring, vlan_macip_lens, type_tucmd, mss_l4len_idx);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
return 1;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
static void igb_tx_csum(struct igb_ring *tx_ring, struct igb_tx_buffer *first)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
struct sk_buff *skb = first->skb;
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
u32 vlan_macip_lens = 0;
u32 mss_l4len_idx = 0;
u32 type_tucmd = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
if (skb->ip_summed != CHECKSUM_PARTIAL) {
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
if (!(first->tx_flags & IGB_TX_FLAGS_VLAN))
return;
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
} else {
u8 l4_hdr = 0;
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
switch (first->protocol) {
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
case __constant_htons(ETH_P_IP):
vlan_macip_lens |= skb_network_header_len(skb);
type_tucmd |= E1000_ADVTXD_TUCMD_IPV4;
l4_hdr = ip_hdr(skb)->protocol;
break;
case __constant_htons(ETH_P_IPV6):
vlan_macip_lens |= skb_network_header_len(skb);
l4_hdr = ipv6_hdr(skb)->nexthdr;
break;
default:
if (unlikely(net_ratelimit())) {
dev_warn(tx_ring->dev,
"partial checksum but proto=%x!\n",
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
first->protocol);
igb: allow tx of pre-formatted vlan tagged packets When the 82575 is fed 802.1q packets, it chokes with an error of the form: igb 0000:08:00.1 partial checksum but proto=81! As the logic there was not smart enough to look into the vlan header to pick out the encapsulated protocol. There are times when we'd like to send these packets out without having to configure a vlan on the interface. Here we check for the vlan tag and allow the packet to go out with the correct hardware checksum. Thanks to Kand Ly <kand@riverbed.com> for discovering the issue and the coming up with a solution. This patch is based upon his work. Signed-off-by: Arthur Jones <ajones@riverbed.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-21 16:55:07 -07:00
}
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
break;
}
igb: allow tx of pre-formatted vlan tagged packets When the 82575 is fed 802.1q packets, it chokes with an error of the form: igb 0000:08:00.1 partial checksum but proto=81! As the logic there was not smart enough to look into the vlan header to pick out the encapsulated protocol. There are times when we'd like to send these packets out without having to configure a vlan on the interface. Here we check for the vlan tag and allow the packet to go out with the correct hardware checksum. Thanks to Kand Ly <kand@riverbed.com> for discovering the issue and the coming up with a solution. This patch is based upon his work. Signed-off-by: Arthur Jones <ajones@riverbed.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-21 16:55:07 -07:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
switch (l4_hdr) {
case IPPROTO_TCP:
type_tucmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
mss_l4len_idx = tcp_hdrlen(skb) <<
E1000_ADVTXD_L4LEN_SHIFT;
break;
case IPPROTO_SCTP:
type_tucmd |= E1000_ADVTXD_TUCMD_L4T_SCTP;
mss_l4len_idx = sizeof(struct sctphdr) <<
E1000_ADVTXD_L4LEN_SHIFT;
break;
case IPPROTO_UDP:
mss_l4len_idx = sizeof(struct udphdr) <<
E1000_ADVTXD_L4LEN_SHIFT;
break;
default:
if (unlikely(net_ratelimit())) {
dev_warn(tx_ring->dev,
"partial checksum but l4 proto=%x!\n",
l4_hdr);
igb: Correctly get protocol information We can't look at the socket to get protocol information. We should instead look directly at the packet, and hope there are no IPv6 option headers. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-07 10:32:13 -08:00
}
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
break;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
/* update TX checksum flag */
first->tx_flags |= IGB_TX_FLAGS_CSUM;
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
vlan_macip_lens |= skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT;
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
vlan_macip_lens |= first->tx_flags & IGB_TX_FLAGS_VLAN_MASK;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
igb_tx_ctxtdesc(tx_ring, vlan_macip_lens, type_tucmd, mss_l4len_idx);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
#define IGB_SET_FLAG(_input, _flag, _result) \
((_flag <= _result) ? \
((u32)(_input & _flag) * (_result / _flag)) : \
((u32)(_input & _flag) / (_flag / _result)))
static u32 igb_tx_cmd_type(struct sk_buff *skb, u32 tx_flags)
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
{
/* set type for advanced descriptor with frame checksum insertion */
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
u32 cmd_type = E1000_ADVTXD_DTYP_DATA |
E1000_ADVTXD_DCMD_DEXT |
E1000_ADVTXD_DCMD_IFCS;
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
/* set HW vlan bit if vlan is present */
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_VLAN,
(E1000_ADVTXD_DCMD_VLE));
/* set segmentation bits for TSO */
cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_TSO,
(E1000_ADVTXD_DCMD_TSE));
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
/* set timestamp bit if present */
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_TSTAMP,
(E1000_ADVTXD_MAC_TSTAMP));
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
/* insert frame checksum */
cmd_type ^= IGB_SET_FLAG(skb->no_fcs, 1, E1000_ADVTXD_DCMD_IFCS);
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
return cmd_type;
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
static void igb_tx_olinfo_status(struct igb_ring *tx_ring,
union e1000_adv_tx_desc *tx_desc,
u32 tx_flags, unsigned int paylen)
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
{
u32 olinfo_status = paylen << E1000_ADVTXD_PAYLEN_SHIFT;
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
/* 82575 requires a unique index per ring */
if (test_bit(IGB_RING_FLAG_TX_CTX_IDX, &tx_ring->flags))
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
olinfo_status |= tx_ring->reg_idx << 4;
/* insert L4 checksum */
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
olinfo_status |= IGB_SET_FLAG(tx_flags,
IGB_TX_FLAGS_CSUM,
(E1000_TXD_POPTS_TXSM << 8));
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
/* insert IPv4 checksum */
olinfo_status |= IGB_SET_FLAG(tx_flags,
IGB_TX_FLAGS_IPV4,
(E1000_TXD_POPTS_IXSM << 8));
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status);
igb: Create separate functions for generating cmd_type and olinfo This change is meant to improve the readability of the driver by separating out the cmd_type configuration and the olinfo configuration into their own functions. By doing this it is much easier to determine which ingredients go into setting up these to portions of the descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:48 +00:00
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
static void igb_tx_map(struct igb_ring *tx_ring,
struct igb_tx_buffer *first,
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
const u8 hdr_len)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
struct sk_buff *skb = first->skb;
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
struct igb_tx_buffer *tx_buffer;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
union e1000_adv_tx_desc *tx_desc;
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
struct skb_frag_struct *frag;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
dma_addr_t dma;
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
unsigned int data_len, size;
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
u32 tx_flags = first->tx_flags;
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
u32 cmd_type = igb_tx_cmd_type(skb, tx_flags);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
u16 i = tx_ring->next_to_use;
tx_desc = IGB_TX_DESC(tx_ring, i);
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
igb_tx_olinfo_status(tx_ring, tx_desc, tx_flags, skb->len - hdr_len);
size = skb_headlen(skb);
data_len = skb->data_len;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
tx_buffer = first;
for (frag = &skb_shinfo(skb)->frags[0];; frag++) {
if (dma_mapping_error(tx_ring->dev, dma))
goto dma_error;
/* record length, and DMA address */
dma_unmap_len_set(tx_buffer, len, size);
dma_unmap_addr_set(tx_buffer, dma, dma);
tx_desc->read.buffer_addr = cpu_to_le64(dma);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
while (unlikely(size > IGB_MAX_DATA_PER_TXD)) {
tx_desc->read.cmd_type_len =
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
cpu_to_le32(cmd_type ^ IGB_MAX_DATA_PER_TXD);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
i++;
tx_desc++;
if (i == tx_ring->count) {
tx_desc = IGB_TX_DESC(tx_ring, 0);
i = 0;
}
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
tx_desc->read.olinfo_status = 0;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
dma += IGB_MAX_DATA_PER_TXD;
size -= IGB_MAX_DATA_PER_TXD;
tx_desc->read.buffer_addr = cpu_to_le64(dma);
}
if (likely(!data_len))
break;
igb: Combine all flag info fields into a single tx_flags structure This change is meant to combine all of the TX flags fields into one u32 flags field so that it can be stored into the tx_buffer_info structure. This includes the time stamp flag as well as mapped_as_page flag info. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:59 +00:00
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: cleanup tx dma so map & unmap use matching calls The igb driver was using map_single to map the skbs and then unmap_page to unmap them. This update changes that so instead uses skb_dma_map and skb_dma_unmap. In addition the next_to_watch member of the buffer_info struct was being set uneccesarily. I removed the spots where it was set without being needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:17:43 +00:00
i++;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
tx_desc++;
if (i == tx_ring->count) {
tx_desc = IGB_TX_DESC(tx_ring, 0);
igb: cleanup tx dma so map & unmap use matching calls The igb driver was using map_single to map the skbs and then unmap_page to unmap them. This update changes that so instead uses skb_dma_map and skb_dma_unmap. In addition the next_to_watch member of the buffer_info struct was being set uneccesarily. I removed the spots where it was set without being needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:17:43 +00:00
i = 0;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
}
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
tx_desc->read.olinfo_status = 0;
igb: cleanup tx dma so map & unmap use matching calls The igb driver was using map_single to map the skbs and then unmap_page to unmap them. This update changes that so instead uses skb_dma_map and skb_dma_unmap. In addition the next_to_watch member of the buffer_info struct was being set uneccesarily. I removed the spots where it was set without being needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:17:43 +00:00
net: add skb frag size accessors To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18 21:00:24 +00:00
size = skb_frag_size(frag);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
data_len -= size;
dma = skb_frag_dma_map(tx_ring->dev, frag, 0,
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
size, DMA_TO_DEVICE);
igb: remove use of skb_dma_map from driver This change removes skb_dma_map/unmap calls from the igb driver due to the fact that the call is incompatible with iommu enabled kernels. In order to prevent warnings about using the wrong unmap call I have added a mapped_as_page value to the buffer_info structure to track if the mapped region is a page or a buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-02 16:47:18 +00:00
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
tx_buffer = &tx_ring->tx_buffer_info[i];
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* write last descriptor with RS and EOP bits */
igb: Update igb Tx flags to improve code efficiency This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:23 +00:00
cmd_type |= size | IGB_TXD_DCMD;
tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type);
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
igb: Improve performance and reduce size of igb_tx_map This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 04:03:24 +00:00
netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount);
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
/* set the timestamp */
first->time_stamp = jiffies;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/*
* Force memory writes to complete before letting h/w know there
* are new descriptors to fetch. (Only applicable for weak-ordered
* memory model archs, such as IA-64).
*
* We also need this memory barrier to make certain all of the
* status bits have been updated before next_to_watch is written.
*/
wmb();
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
/* set next_to_watch value indicating a packet is present */
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
first->next_to_watch = tx_desc;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
i++;
if (i == tx_ring->count)
i = 0;
igb: remove use of skb_dma_map from driver This change removes skb_dma_map/unmap calls from the igb driver due to the fact that the call is incompatible with iommu enabled kernels. In order to prevent warnings about using the wrong unmap call I have added a mapped_as_page value to the buffer_info structure to track if the mapped region is a page or a buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-02 16:47:18 +00:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
tx_ring->next_to_use = i;
igb: remove use of skb_dma_map from driver This change removes skb_dma_map/unmap calls from the igb driver due to the fact that the call is incompatible with iommu enabled kernels. In order to prevent warnings about using the wrong unmap call I have added a mapped_as_page value to the buffer_info structure to track if the mapped region is a page or a buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-02 16:47:18 +00:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
writel(i, tx_ring->tail);
igb: remove use of skb_dma_map from driver This change removes skb_dma_map/unmap calls from the igb driver due to the fact that the call is incompatible with iommu enabled kernels. In order to prevent warnings about using the wrong unmap call I have added a mapped_as_page value to the buffer_info structure to track if the mapped region is a page or a buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-02 16:47:18 +00:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* we need this if more than one processor can write to our tail
* at a time, it syncronizes IO on IA64/Altix systems */
mmiowb();
return;
dma_error:
dev_err(tx_ring->dev, "TX DMA map failed\n");
/* clear dma mappings for failed tx_buffer_info map */
for (;;) {
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
tx_buffer = &tx_ring->tx_buffer_info[i];
igb_unmap_and_free_tx_resource(tx_ring, tx_buffer);
if (tx_buffer == first)
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
break;
igb: update tx DMA mapping error handling This updates the tx DMA mapping error handling code to resemble e1000e/ixgbe. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:06:16 +00:00
if (i == 0)
i = tx_ring->count;
igb: remove use of skb_dma_map from driver This change removes skb_dma_map/unmap calls from the igb driver due to the fact that the call is incompatible with iommu enabled kernels. In order to prevent warnings about using the wrong unmap call I have added a mapped_as_page value to the buffer_info structure to track if the mapped region is a page or a buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-02 16:47:18 +00:00
i--;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tx_ring->next_to_use = i;
}
igb: avoid unnecessary conversions from u16 to int There are a number of places where we have values that are stored as u16 but are being converted to int unnecessarily. In order to avoid that we should convert all variables that deal with the next_to_clean, next_to_use, and count to u16 values. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:26 +00:00
static int __igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: place a pointer to the netdev struct in the ring itself This change adds a pointer to the netdev to the ring itself. The idea being at some point in the future it will be possible to support multiple netdevs from a single adapter struct. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:06 +00:00
struct net_device *netdev = tx_ring->netdev;
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
netif_stop_subqueue(netdev, tx_ring->queue_index);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Herbert's original patch had:
* smp_mb__after_netif_stop_queue();
* but since that doesn't exist yet, just open code it. */
smp_mb();
/* We need to check again in a case another CPU has just
* made room available. */
igb: remove IGB_DESC_UNUSED since it is better handled by a function call This patch removes IGB_DESC_UNUSED and replaces it with a function call instead in order to cleanup some of the ugliness introduced by the macro. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:16:50 +00:00
if (igb_desc_unused(tx_ring) < size)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -EBUSY;
/* A reprieve! */
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
netif_wake_subqueue(netdev, tx_ring->queue_index);
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
u64_stats_update_begin(&tx_ring->tx_syncp2);
tx_ring->tx_stats.restart_queue2++;
u64_stats_update_end(&tx_ring->tx_syncp2);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
}
igb: avoid unnecessary conversions from u16 to int There are a number of places where we have values that are stored as u16 but are being converted to int unnecessarily. In order to avoid that we should convert all variables that deal with the next_to_clean, next_to_use, and count to u16 values. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:26 +00:00
static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: remove IGB_DESC_UNUSED since it is better handled by a function call This patch removes IGB_DESC_UNUSED and replaces it with a function call instead in order to cleanup some of the ugliness introduced by the macro. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20 00:16:50 +00:00
if (igb_desc_unused(tx_ring) >= size)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
igb: place a pointer to the netdev struct in the ring itself This change adds a pointer to the netdev to the ring itself. The idea being at some point in the future it will be possible to support multiple netdevs from a single adapter struct. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:06 +00:00
return __igb_maybe_stop_tx(tx_ring, size);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
struct igb_ring *tx_ring)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
struct igb_adapter *adapter = netdev_priv(tx_ring->netdev);
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
struct igb_tx_buffer *first;
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
int tso;
igb: minor type cleanups This change cleans up some instances where unsigned int and u32 were being used interchangeably, and cleans up hdr_len which was being set to 0 twice. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:04:56 +00:00
u32 tx_flags = 0;
igb: Update igb to use a path similar to ixgbe to determine when to stop Tx After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-09 04:27:48 +00:00
u16 count = TXD_USE_COUNT(skb_headlen(skb));
igb: Cleanup protocol handling in transmit path This change is meant to cleanup the protocol handling in the transmit path so that it correctly offloads software VLAN tagged frames. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:53 +00:00
__be16 protocol = vlan_get_protocol(skb);
igb: minor type cleanups This change cleans up some instances where unsigned int and u32 were being used interchangeably, and cleans up hdr_len which was being set to 0 twice. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:04:56 +00:00
u8 hdr_len = 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Update igb to use a path similar to ixgbe to determine when to stop Tx After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-09 04:27:48 +00:00
/* need: 1 descriptor per page * PAGE_SIZE/IGB_MAX_DATA_PER_TXD,
* + 1 desc for skb_headlen/IGB_MAX_DATA_PER_TXD,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* + 2 desc gap to keep tail from touching head,
* + 1 desc for context descriptor,
igb: Update igb to use a path similar to ixgbe to determine when to stop Tx After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-09 04:27:48 +00:00
* otherwise try next time
*/
if (NETDEV_FRAG_PAGE_MAX_SIZE > IGB_MAX_DATA_PER_TXD) {
unsigned short f;
for (f = 0; f < skb_shinfo(skb)->nr_frags; f++)
count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size);
} else {
count += skb_shinfo(skb)->nr_frags;
}
if (igb_maybe_stop_tx(tx_ring, count + 3)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* this is a hard error */
return NETDEV_TX_BUSY;
}
igb: use timecompare to implement hardware time stamping Both TX and RX hardware time stamping are implemented. Due to hardware limitations it is not possible to verify reliably which packet was time stamped when multiple were pending for sending; this could be solved by only allowing one packet marked for hardware time stamping into the queue (not implemented yet). RX time stamping relies on the flag in the packet descriptor which marks packets that were time stamped. In "all packet" mode this flag is not set. TODO: also support that mode (even though it'll suffer from race conditions). Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:43 +00:00
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
/* record the location of the first descriptor for this packet */
first = &tx_ring->tx_buffer_info[tx_ring->next_to_use];
first->skb = skb;
first->bytecount = skb->len;
first->gso_segs = 1;
igb: Add support for SW timestamping Enable SW timestamping for situations where the user may prefer it over HW timestamping or there may not be HW timestamping. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-13 07:20:33 +00:00
skb_tx_timestamp(skb);
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
!(adapter->ptp_tx_skb))) {
net: simplify flags for tx timestamping This patch removes the abstraction introduced by the union skb_shared_tx in the shared skb data. The access of the different union elements at several places led to some confusion about accessing the shared tx_flags e.g. in skb_orphan_try(). http://marc.info/?l=linux-netdev&m=128084897415886&w=2 Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-17 08:59:14 +00:00
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
igb: use timecompare to implement hardware time stamping Both TX and RX hardware time stamping are implemented. Due to hardware limitations it is not possible to verify reliably which packet was time stamped when multiple were pending for sending; this could be solved by only allowing one packet marked for hardware time stamping into the queue (not implemented yet). RX time stamping relies on the flag in the packet descriptor which marks packets that were time stamped. In "all packet" mode this flag is not set. TODO: also support that mode (even though it'll suffer from race conditions). Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:43 +00:00
tx_flags |= IGB_TX_FLAGS_TSTAMP;
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
adapter->ptp_tx_skb = skb_get(skb);
igb: Add timeout for PTP Tx work item When transmitting a packet that must return a Tx timestamp, a work item gets scheduled to poll for the Tx timestamp being completed in hardware. Add a timeout on this work item of 15 seconds from when the driver gets the skb, after which it will stop polling. Report via stats and system log if this occurs. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-13 07:20:34 +00:00
adapter->ptp_tx_start = jiffies;
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
if (adapter->hw.mac.type == e1000_82576)
schedule_work(&adapter->ptp_tx_work);
igb: use timecompare to implement hardware time stamping Both TX and RX hardware time stamping are implemented. Due to hardware limitations it is not possible to verify reliably which packet was time stamped when multiple were pending for sending; this could be solved by only allowing one packet marked for hardware time stamping into the queue (not implemented yet). RX time stamping relies on the flag in the packet descriptor which marks packets that were time stamped. In "all packet" mode this flag is not set. TODO: also support that mode (even though it'll suffer from race conditions). Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:43 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
vlan: Don't check for vlan group before vlan_tx_tag_present. Many (but not all) drivers check to see whether there is a vlan group configured before using a tag stored in the skb. There's not much point in this check since it just throws away data that should only be present in the expected circumstances. However, it will soon be legal and expected to get a vlan tag when no vlan group is configured, so remove this check from all drivers to avoid dropping the tags. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-20 13:56:03 +00:00
if (vlan_tx_tag_present(skb)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tx_flags |= IGB_TX_FLAGS_VLAN;
tx_flags |= (vlan_tx_tag_get(skb) << IGB_TX_FLAGS_VLAN_SHIFT);
}
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
/* record initial flags and protocol */
first->tx_flags = tx_flags;
first->protocol = protocol;
igb: cleanup igb xmit frame path This patch cleans up the xmit frame path for igb to better handle xmit frame errors and avoid null pointer exceptions. It also cleans up some whitespace issues found in the xmit frame path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:50:57 +00:00
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
tso = igb_tso(tx_ring, first, &hdr_len);
if (tso < 0)
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
goto out_drop;
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
else if (!tso)
igb_tx_csum(tx_ring, first);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
igb_tx_map(tx_ring, first, hdr_len);
igb: add a flags value to the ring This patch adds a flags value to the ring that cleans up some of the last remaining items from the ring in order to help seperate it from the adapter struct. By implementing these flags it becomes possible for different rings to support different functions such as rx checksumming. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:52:46 +00:00
/* Make sure there is space in the ring for the next send. */
igb: Update igb to use a path similar to ixgbe to determine when to stop Tx After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-09 04:27:48 +00:00
igb_maybe_stop_tx(tx_ring, DESC_NEEDED);
igb: add a flags value to the ring This patch adds a flags value to the ring that cleans up some of the last remaining items from the ring in order to help seperate it from the adapter struct. By implementing these flags it becomes possible for different rings to support different functions such as rx checksumming. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:52:46 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return NETDEV_TX_OK;
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
out_drop:
igb: push data into first igb_tx_buffer sooner to reduce stack usage Instead of storing most of the data for the TX hot path in the stack until we are ready to write the descriptor we can save ourselves some time and effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into the first igb_tx_buffer since that is where we will end up putting it anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:15 +00:00
igb_unmap_and_free_tx_resource(tx_ring, first);
igb: Consolidate creation of Tx context descriptors into a single function This patch is meant to simplify the transmit path by reducing the overhead for creating a transmit context descriptor. The current implementation is split with igb_tso and igb_tx_csum doing two separate implementations on how to setup the tx_buffer_info structure and the tx_desc. By combining them it is possible to reduce code and simplify things since now only one function will create context descriptors. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:32 +00:00
return NETDEV_TX_OK;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Remove multi_tx_table and simplify igb_xmit_frame Instead of using the multi_tx_table to map possible Tx queues to Tx rings we can just do simple subtraction for the unlikely event that the Tx queue provided exceeds the number of Tx rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:10 +00:00
static inline struct igb_ring *igb_tx_queue_mapping(struct igb_adapter *adapter,
struct sk_buff *skb)
{
unsigned int r_idx = skb->queue_mapping;
if (r_idx >= adapter->num_tx_queues)
r_idx = r_idx % adapter->num_tx_queues;
return adapter->tx_ring[r_idx];
}
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
static netdev_tx_t igb_xmit_frame(struct sk_buff *skb,
struct net_device *netdev)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
igb: make tx ring map and free functionality non-static This change makes a minor change to the xmit_frame_ring_adv funcition in that it moves 2 checks from it into the xmit_frame_adv since the checks were not ring specific. In addition it exports the xmit_frame_ring_adv and the unmap_and_free_tx_resource calls so that they can be used by other code such as the ethtool loopback testing calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:43 +00:00
if (test_bit(__IGB_DOWN, &adapter->state)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
if (skb->len <= 0) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
igb: Remove multi_tx_table and simplify igb_xmit_frame Instead of using the multi_tx_table to map possible Tx queues to Tx rings we can just do simple subtraction for the unlikely event that the Tx queue provided exceeds the number of Tx rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:10 +00:00
/*
* The minimum packet size with TCTL.PSP set is 17 so pad the skb
* in order to meet this minimum size requirement.
*/
igb: Correcting and improving small packet check and padding Current implementation mess up the tail pointer. This patch sets skb->tail correctly. Also, the small packet check and padding is optimized by using unlikely and calling skb_pad directly. Signed-off-by: Tushar Dave <tushar.n.dave@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-14 03:43:43 +00:00
if (unlikely(skb->len < 17)) {
if (skb_pad(skb, 17 - skb->len))
igb: Remove multi_tx_table and simplify igb_xmit_frame Instead of using the multi_tx_table to map possible Tx queues to Tx rings we can just do simple subtraction for the unlikely event that the Tx queue provided exceeds the number of Tx rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:10 +00:00
return NETDEV_TX_OK;
skb->len = 17;
igb: Correcting and improving small packet check and padding Current implementation mess up the tail pointer. This patch sets skb->tail correctly. Also, the small packet check and padding is optimized by using unlikely and calling skb_pad directly. Signed-off-by: Tushar Dave <tushar.n.dave@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-14 03:43:43 +00:00
skb_set_tail_pointer(skb, 17);
igb: Remove multi_tx_table and simplify igb_xmit_frame Instead of using the multi_tx_table to map possible Tx queues to Tx rings we can just do simple subtraction for the unlikely event that the Tx queue provided exceeds the number of Tx rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:10 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Remove multi_tx_table and simplify igb_xmit_frame Instead of using the multi_tx_table to map possible Tx queues to Tx rings we can just do simple subtraction for the unlikely event that the Tx queue provided exceeds the number of Tx rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:10 +00:00
return igb_xmit_frame_ring(skb, igb_tx_queue_mapping(adapter, skb));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_tx_timeout - Respond to a Tx Hang
* @netdev: network interface device structure
**/
static void igb_tx_timeout(struct net_device *netdev)
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
/* Do the reset outside of interrupt context */
adapter->tx_timeout_count++;
igb: make tx hang check multiqueue, check eop descriptor This change makes the tx hang check run over all tx queues instead of just queue 0. Also have hang display info on EOP descriptor instead of the descriptor at the start of the chain. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:51 +00:00
igb: Fix features that are currently 82580 only and should also be i350 This change allows support for per packet timesync and global device reset on the i350 adapter. These features were supported on both 82580 and i350 however it looks like several checks where not updated and as such the i350 support was not enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:55 +00:00
if (hw->mac.type >= e1000_82580)
igb: Add full support for 82580 devices This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-19 12:42:21 +00:00
hw->dev_spec._82575.global_device_reset = true;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
schedule_work(&adapter->reset_task);
igb: fix two minor items found during code review This patch addresses two minor items I found while cleaning up the igb driver for our sourceforge version. The first clears the context index if we don't flag that we need it. The second item is that eims_other should be used instead of bit defines when setting all of the EICS bits prior to reset. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:22:52 +00:00
wr32(E1000_EICS,
(adapter->eims_enable_mask & ~adapter->eims_other));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
static void igb_reset_task(struct work_struct *work)
{
struct igb_adapter *adapter;
adapter = container_of(work, struct igb_adapter, reset_task);
igb: add registers etc. printout code just before resetting adapters This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 14:39:30 +00:00
igb_dump(adapter);
netdev_err(adapter->netdev, "Reset adapter\n");
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb_reinit_locked(adapter);
}
/**
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
* igb_get_stats64 - Get System Network Statistics
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* @netdev: network interface device structure
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
* @stats: rtnl_link_stats64 pointer
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
*
**/
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *netdev,
struct rtnl_link_stats64 *stats)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
struct igb_adapter *adapter = netdev_priv(netdev);
spin_lock(&adapter->stats64_lock);
igb_update_stats(adapter, &adapter->stats64);
memcpy(stats, &adapter->stats64, sizeof(*stats));
spin_unlock(&adapter->stats64_lock);
return stats;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_change_mtu - Change the Maximum Transfer Unit
* @netdev: network interface device structure
* @new_mtu: new value for maximum frame size
*
* Returns 0 on success, negative on failure
**/
static int igb_change_mtu(struct net_device *netdev, int new_mtu)
{
struct igb_adapter *adapter = netdev_priv(netdev);
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: Update max_frame_size to account for an optional VLAN tag if present This patch modifies the max_frame_size in order account for an optional VLAN tag. In order to support this we must also increase the MAX_STD_JUMBO_FRAME_SIZE to account for the 4 extra bytes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:32 +00:00
int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: limit minimum mtu to 68 to keep ip bound to interface Limit the minimum mtu to 68 in order to prevent ip from being unbound from the interface. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:13 +00:00
if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) {
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_err(&pdev->dev, "Invalid MTU setting\n");
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -EINVAL;
}
igb: Update max_frame_size to account for an optional VLAN tag if present This patch modifies the max_frame_size in order account for an optional VLAN tag. In order to support this we must also increase the MAX_STD_JUMBO_FRAME_SIZE to account for the 4 extra bytes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:32 +00:00
#define MAX_STD_JUMBO_FRAME_SIZE 9238
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_err(&pdev->dev, "MTU > 9216 not supported.\n");
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -EINVAL;
}
while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
msleep(1);
igb: misc whitespace/formatting cleanups This patch is intended to hold several whitespace, formatting, and comment cleanups that have been found while cleaning up the igb driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 18:16:59 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* igb_down has a dependency on max_frame_size */
adapter->max_frame_size = max_frame;
igb: cleanup whitespace issues in igb_main.c This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:52:50 +00:00
igb: move rx_buffer_len into the ring structure This patch moves the rx_buffer_len value into the ring structure. This allows greater flexibility and the option of doing things such as supporting packet split only on some queues, or enabling virtualization. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:52:07 +00:00
if (netif_running(netdev))
igb_down(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_info(&pdev->dev, "changing MTU from %d to %d\n",
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
netdev->mtu, new_mtu);
netdev->mtu = new_mtu;
if (netif_running(netdev))
igb_up(adapter);
else
igb_reset(adapter);
clear_bit(__IGB_RESETTING, &adapter->state);
return 0;
}
/**
* igb_update_stats - Update the board statistics counters
* @adapter: board private structure
**/
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
void igb_update_stats(struct igb_adapter *adapter,
struct rtnl_link_stats64 *net_stats)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct e1000_hw *hw = &adapter->hw;
struct pci_dev *pdev = adapter->pdev;
igb: count Rx FIFO errors correctly Don't aggregate rx_no_buffer_count into rx_fifo_errors. RNBC counts packets that get queued temporarily in the adapter's FIFO. These packets are not dropped and are not errors. The correct counter is rx_missed_errors (MPC). Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23 18:34:38 +00:00
u32 reg, mpc;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
u16 phy_tmp;
igb: only process global stats in igb_update_stats This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:12 +00:00
int i;
u64 bytes, packets;
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
unsigned int start;
u64 _bytes, _packets;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
/*
* Prevent stats update while adapter is being reset, or if the pci
* connection is down.
*/
if (adapter->link_speed == 0)
return;
if (pci_channel_offline(pdev))
return;
igb: only process global stats in igb_update_stats This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:12 +00:00
bytes = 0;
packets = 0;
for (i = 0; i < adapter->num_rx_queues; i++) {
igb: Remove artificial restriction on RQDPC stat reading For some reason the reading of the RQDPC register was being artificially limited to 4K. Instead of limiting the value we should read the value and add the full amount. Otherwise this can lead to a misleading number of dropped packets when the actual value is in fact much higher. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-08 05:23:22 +00:00
u32 rqdpc = rd32(E1000_RQDPC(i));
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
struct igb_ring *ring = adapter->rx_ring[i];
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
igb: Remove artificial restriction on RQDPC stat reading For some reason the reading of the RQDPC register was being artificially limited to 4K. Instead of limiting the value we should read the value and add the full amount. Otherwise this can lead to a misleading number of dropped packets when the actual value is in fact much higher. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-08 05:23:22 +00:00
if (rqdpc) {
ring->rx_stats.drops += rqdpc;
net_stats->rx_fifo_errors += rqdpc;
}
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
do {
start = u64_stats_fetch_begin_bh(&ring->rx_syncp);
_bytes = ring->rx_stats.bytes;
_packets = ring->rx_stats.packets;
} while (u64_stats_fetch_retry_bh(&ring->rx_syncp, start));
bytes += _bytes;
packets += _packets;
igb: only process global stats in igb_update_stats This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:12 +00:00
}
igb: Rework how netdev->stats is handled This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:38 +00:00
net_stats->rx_bytes = bytes;
net_stats->rx_packets = packets;
igb: only process global stats in igb_update_stats This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:12 +00:00
bytes = 0;
packets = 0;
for (i = 0; i < adapter->num_tx_queues; i++) {
igb: Allocate rings seperately instead of as a block This change makes it so that the rings are allocated seperately. As a result we can allocate them on seperate nodes at some point in the future if we so desire. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:39 +00:00
struct igb_ring *ring = adapter->tx_ring[i];
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
do {
start = u64_stats_fetch_begin_bh(&ring->tx_syncp);
_bytes = ring->tx_stats.bytes;
_packets = ring->tx_stats.packets;
} while (u64_stats_fetch_retry_bh(&ring->tx_syncp, start));
bytes += _bytes;
packets += _packets;
igb: only process global stats in igb_update_stats This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:12 +00:00
}
igb: Rework how netdev->stats is handled This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:38 +00:00
net_stats->tx_bytes = bytes;
net_stats->tx_packets = packets;
igb: only process global stats in igb_update_stats This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:48:12 +00:00
/* read stats registers */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->stats.crcerrs += rd32(E1000_CRCERRS);
adapter->stats.gprc += rd32(E1000_GPRC);
adapter->stats.gorc += rd32(E1000_GORCL);
rd32(E1000_GORCH); /* clear GORCL */
adapter->stats.bprc += rd32(E1000_BPRC);
adapter->stats.mprc += rd32(E1000_MPRC);
adapter->stats.roc += rd32(E1000_ROC);
adapter->stats.prc64 += rd32(E1000_PRC64);
adapter->stats.prc127 += rd32(E1000_PRC127);
adapter->stats.prc255 += rd32(E1000_PRC255);
adapter->stats.prc511 += rd32(E1000_PRC511);
adapter->stats.prc1023 += rd32(E1000_PRC1023);
adapter->stats.prc1522 += rd32(E1000_PRC1522);
adapter->stats.symerrs += rd32(E1000_SYMERRS);
adapter->stats.sec += rd32(E1000_SEC);
igb: count Rx FIFO errors correctly Don't aggregate rx_no_buffer_count into rx_fifo_errors. RNBC counts packets that get queued temporarily in the adapter's FIFO. These packets are not dropped and are not errors. The correct counter is rx_missed_errors (MPC). Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23 18:34:38 +00:00
mpc = rd32(E1000_MPC);
adapter->stats.mpc += mpc;
net_stats->rx_fifo_errors += mpc;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->stats.scc += rd32(E1000_SCC);
adapter->stats.ecol += rd32(E1000_ECOL);
adapter->stats.mcc += rd32(E1000_MCC);
adapter->stats.latecol += rd32(E1000_LATECOL);
adapter->stats.dc += rd32(E1000_DC);
adapter->stats.rlec += rd32(E1000_RLEC);
adapter->stats.xonrxc += rd32(E1000_XONRXC);
adapter->stats.xontxc += rd32(E1000_XONTXC);
adapter->stats.xoffrxc += rd32(E1000_XOFFRXC);
adapter->stats.xofftxc += rd32(E1000_XOFFTXC);
adapter->stats.fcruc += rd32(E1000_FCRUC);
adapter->stats.gptc += rd32(E1000_GPTC);
adapter->stats.gotc += rd32(E1000_GOTCL);
rd32(E1000_GOTCH); /* clear GOTCL */
igb: count Rx FIFO errors correctly Don't aggregate rx_no_buffer_count into rx_fifo_errors. RNBC counts packets that get queued temporarily in the adapter's FIFO. These packets are not dropped and are not errors. The correct counter is rx_missed_errors (MPC). Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23 18:34:38 +00:00
adapter->stats.rnbc += rd32(E1000_RNBC);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->stats.ruc += rd32(E1000_RUC);
adapter->stats.rfc += rd32(E1000_RFC);
adapter->stats.rjc += rd32(E1000_RJC);
adapter->stats.tor += rd32(E1000_TORH);
adapter->stats.tot += rd32(E1000_TOTH);
adapter->stats.tpr += rd32(E1000_TPR);
adapter->stats.ptc64 += rd32(E1000_PTC64);
adapter->stats.ptc127 += rd32(E1000_PTC127);
adapter->stats.ptc255 += rd32(E1000_PTC255);
adapter->stats.ptc511 += rd32(E1000_PTC511);
adapter->stats.ptc1023 += rd32(E1000_PTC1023);
adapter->stats.ptc1522 += rd32(E1000_PTC1522);
adapter->stats.mptc += rd32(E1000_MPTC);
adapter->stats.bptc += rd32(E1000_BPTC);
igb: remove adaptive IFS from driver Adaptive IFS support has been included in the igb driver since its initial release, but it is not a feature on any igb NICs. This patch removes it from the driver. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:59 +00:00
adapter->stats.tpt += rd32(E1000_TPT);
adapter->stats.colc += rd32(E1000_COLC);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->stats.algnerrc += rd32(E1000_ALGNERRC);
igb: only read phy specific stats if in internal phy mode There are a couple statistics registers that are not meant to be read when in SGMII/serdes mode. This patch adds a check to verify mode before reading and updating these statistics. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:03:58 +00:00
/* read internal phy specific stats */
reg = rd32(E1000_CTRL_EXT);
if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) {
adapter->stats.rxerrc += rd32(E1000_RXERRC);
igb: Fix stats output on i210/i211 parts. Due to a hardware issue, on i210 and i211 parts, the TNCRS statistic provides an invalid value. This patch changes the update stats function to increment the stat only for non-i210/i211 parts. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-12 04:36:24 +00:00
/* this stat has invalid values on i210/i211 */
if ((hw->mac.type != e1000_i210) &&
(hw->mac.type != e1000_i211))
adapter->stats.tncrs += rd32(E1000_TNCRS);
igb: only read phy specific stats if in internal phy mode There are a couple statistics registers that are not meant to be read when in SGMII/serdes mode. This patch adds a check to verify mode before reading and updating these statistics. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:03:58 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->stats.tsctc += rd32(E1000_TSCTC);
adapter->stats.tsctfc += rd32(E1000_TSCTFC);
adapter->stats.iac += rd32(E1000_IAC);
adapter->stats.icrxoc += rd32(E1000_ICRXOC);
adapter->stats.icrxptc += rd32(E1000_ICRXPTC);
adapter->stats.icrxatc += rd32(E1000_ICRXATC);
adapter->stats.ictxptc += rd32(E1000_ICTXPTC);
adapter->stats.ictxatc += rd32(E1000_ICTXATC);
adapter->stats.ictxqec += rd32(E1000_ICTXQEC);
adapter->stats.ictxqmtc += rd32(E1000_ICTXQMTC);
adapter->stats.icrxdmtc += rd32(E1000_ICRXDMTC);
/* Fill out the OS statistics structure */
igb: Rework how netdev->stats is handled This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:38 +00:00
net_stats->multicast = adapter->stats.mprc;
net_stats->collisions = adapter->stats.colc;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Rx Errors */
/* RLEC on some newer hardware can be incorrect so build
igb: Implement reading of reg RQDPC (Receive Queue Drop Packet Count) Based on the previous patches from Jesper Dangaard Brouer <hawk@comx.dk> Implement reading the per queue drop stats register RQDPC (Receive Queue Drop Packet Count). It counts the number of packets dropped by a queue due to lack of descriptors available. Notice RQDPC (Receive Queue Drop Packet Count) stats only gets incremented, if the DROP_EN bit it set (in the SRRCTL register for that queue). If DROP_EN bit is NOT set, then the some what equivalent count is stored in RNBC (not per queue basis). The RQDPC register is only 12 bit, thus the precision might suffer due to overrun in-netween the watchdog polling interval. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 13:50:31 +00:00
* our own version based on RUC and ROC */
igb: Rework how netdev->stats is handled This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:38 +00:00
net_stats->rx_errors = adapter->stats.rxerrc +
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
adapter->stats.crcerrs + adapter->stats.algnerrc +
adapter->stats.ruc + adapter->stats.roc +
adapter->stats.cexterr;
igb: Rework how netdev->stats is handled This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:38 +00:00
net_stats->rx_length_errors = adapter->stats.ruc +
adapter->stats.roc;
net_stats->rx_crc_errors = adapter->stats.crcerrs;
net_stats->rx_frame_errors = adapter->stats.algnerrc;
net_stats->rx_missed_errors = adapter->stats.mpc;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Tx Errors */
igb: Rework how netdev->stats is handled This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 18:37:38 +00:00
net_stats->tx_errors = adapter->stats.ecol +
adapter->stats.latecol;
net_stats->tx_aborted_errors = adapter->stats.ecol;
net_stats->tx_window_errors = adapter->stats.latecol;
net_stats->tx_carrier_errors = adapter->stats.tncrs;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Tx Dropped needs to be maintained elsewhere */
/* Phy Stats */
if (hw->phy.media_type == e1000_media_type_copper) {
if ((adapter->link_speed == SPEED_1000) &&
igb: misc whitespace/formatting cleanups This patch is intended to hold several whitespace, formatting, and comment cleanups that have been found while cleaning up the igb driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 18:16:59 +00:00
(!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
adapter->phy_stats.idle_errors += phy_tmp;
}
}
/* Management Stats */
adapter->stats.mgptc += rd32(E1000_MGTPTC);
adapter->stats.mgprc += rd32(E1000_MGTPRC);
adapter->stats.mgpdc += rd32(E1000_MGTPDC);
igb: Add stats output for OS2BMC feature on i350 devices This patch adds statistics output for OS2BMC feature which is configured by eeprom on capable devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-26 07:42:37 +00:00
/* OS2BMC Stats */
reg = rd32(E1000_MANC);
if (reg & E1000_MANC_EN_BMC2OS) {
adapter->stats.o2bgptc += rd32(E1000_O2BGPTC);
adapter->stats.o2bspc += rd32(E1000_O2BSPC);
adapter->stats.b2ospc += rd32(E1000_B2OSPC);
adapter->stats.b2ogprc += rd32(E1000_B2OGPRC);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
static irqreturn_t igb_msix_other(int irq, void *data)
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = data;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_hw *hw = &adapter->hw;
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
u32 icr = rd32(E1000_ICR);
/* reading ICR causes bit 31 of EICR to be cleared */
igb: add counter for dma out of sync errors Add a counter for dma out of sync errors reported via interrupt. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:08 +00:00
igb: add support for device reset interrupt This patch adds support for the global device reset interrupt. Without this change the drivers will report tx hangs on all ports when a global device reset occurs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 17:41:00 +00:00
if (icr & E1000_ICR_DRSTA)
schedule_work(&adapter->reset_task);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (icr & E1000_ICR_DOUTSYNC) {
igb: add counter for dma out of sync errors Add a counter for dma out of sync errors reported via interrupt. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:08 +00:00
/* HW is reporting DMA is out of sync */
adapter->stats.doosync++;
igb: Add Anti-spoofing feature support Add support for the anti-spoofing feature in the HW. Packets from VF devices with spoofed MAC addresses or VLAN tags will be blocked and an event generated. When the watchdog task runs it will call a function to check if any spoof events occurred. If an event was detected then a warning message is dumped to the system log. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 02:08:26 +00:00
/* The DMA Out of Sync is also indication of a spoof event
* in IOV mode. Check the Wrong VM Behavior register to
* see if it is really a spoof event. */
igb_check_wvbr(adapter);
igb: add counter for dma out of sync errors Add a counter for dma out of sync errors reported via interrupt. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:08 +00:00
}
igb: cleanup igb_netpoll to be more friendly with napi & GRO This patch cleans up igb_netpoll so that it is more friendly with both the current napi and newly introduced GRO features. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:29 +00:00
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* Check for a mailbox event */
if (icr & E1000_ICR_VMMB)
igb_msg_task(adapter);
if (icr & E1000_ICR_LSC) {
hw->mac.get_link_status = 1;
/* guard against interrupt when we're going down */
if (!test_bit(__IGB_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
if (icr & E1000_ICR_TS) {
u32 tsicr = rd32(E1000_TSICR);
if (tsicr & E1000_TSICR_TXTS) {
/* acknowledge the interrupt */
wr32(E1000_TSICR, E1000_TSICR_TXTS);
/* retrieve hardware timestamp */
schedule_work(&adapter->ptp_tx_work);
}
}
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
wr32(E1000_EIMS, adapter->eims_other);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return IRQ_HANDLED;
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static void igb_write_itr(struct igb_q_vector *q_vector)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: remove unecessary q_vector declarations and remove itr_shift This change removes the use of itr_shift since a mac type call can be used just as easily to identify the only HW that needs to have the itr shifted. In addition it removes two unecessary declarations of a q_vector pointer from the initialization path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:00:41 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
u32 itr_val = q_vector->itr_val & 0x7FFC;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (!q_vector->set_itr)
return;
igb: misc whitespace/formatting cleanups This patch is intended to hold several whitespace, formatting, and comment cleanups that have been found while cleaning up the igb driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 18:16:59 +00:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (!itr_val)
itr_val = 0x4;
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
igb: remove unecessary q_vector declarations and remove itr_shift This change removes the use of itr_shift since a mac type call can be used just as easily to identify the only HW that needs to have the itr shifted. In addition it removes two unecessary declarations of a q_vector pointer from the initialization path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:00:41 +00:00
if (adapter->hw.mac.type == e1000_82575)
itr_val |= itr_val << 16;
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
else
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
itr_val |= E1000_EITR_CNT_IGNR;
igb: Introduce multiple TX queues with infrastructure This code adds multiple Tx queue infrastructure much like we previously did in ixgbe. The MSI-X vector mapping is the bulk of the change. IAM can now be safely enabled and we've verified that it does work correctly. We can also eliminate the tx ring lock. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:06:51 -07:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
writel(itr_val, q_vector->itr_register);
q_vector->set_itr = 0;
igb: Improve multiqueue AIM support Improve multiqueue performance Change itr_val to reflect ITR timer value instead of ints/sec Cleaned up AIM algorithms in general Based on work by Mitch Williams Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:14:44 -07:00
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static irqreturn_t igb_msix_ring(int irq, void *data)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_q_vector *q_vector = data;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
/* Write the ITR value calculated from the previous interrupt. */
igb_write_itr(q_vector);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
napi_schedule(&q_vector->napi);
igb: add NAPI Rx queue support Update the NAPI implementation to use the new napi_struct infrstructure. This removes the need of multiple net_device structs to implement a multiqueue NAPI. Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-27 11:00:39 -07:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
return IRQ_HANDLED;
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
}
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: Split igb_update_dca into separate Tx and Rx functions This change makes it so that igb_update_dca is broken into two halves, one for Rx and one for Tx. The advantage to this is primarily readability. In addition I am enabling relaxed ordering for reads from hardware since this is supported on all of the igb parts. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:27 +00:00
static void igb_update_tx_dca(struct igb_adapter *adapter,
struct igb_ring *tx_ring,
int cpu)
{
struct e1000_hw *hw = &adapter->hw;
u32 txctrl = dca3_get_tag(tx_ring->dev, cpu);
if (hw->mac.type != e1000_82575)
txctrl <<= E1000_DCA_TXCTRL_CPUID_SHIFT;
/*
* We can enable relaxed ordering for reads, but not writes when
* DCA is enabled. This is due to a known issue in some chipsets
* which will cause the DCA tag to be cleared.
*/
txctrl |= E1000_DCA_TXCTRL_DESC_RRO_EN |
E1000_DCA_TXCTRL_DATA_RRO_EN |
E1000_DCA_TXCTRL_DESC_DCA_EN;
wr32(E1000_DCA_TXCTRL(tx_ring->reg_idx), txctrl);
}
static void igb_update_rx_dca(struct igb_adapter *adapter,
struct igb_ring *rx_ring,
int cpu)
{
struct e1000_hw *hw = &adapter->hw;
u32 rxctrl = dca3_get_tag(&adapter->pdev->dev, cpu);
if (hw->mac.type != e1000_82575)
rxctrl <<= E1000_DCA_RXCTRL_CPUID_SHIFT;
/*
* We can enable relaxed ordering for reads, but not writes when
* DCA is enabled. This is due to a known issue in some chipsets
* which will cause the DCA tag to be cleared.
*/
rxctrl |= E1000_DCA_RXCTRL_DESC_RRO_EN |
E1000_DCA_RXCTRL_DESC_DCA_EN;
wr32(E1000_DCA_RXCTRL(rx_ring->reg_idx), rxctrl);
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static void igb_update_dca(struct igb_q_vector *q_vector)
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
int cpu = get_cpu();
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (q_vector->cpu == cpu)
goto out_no_update;
igb: Split igb_update_dca into separate Tx and Rx functions This change makes it so that igb_update_dca is broken into two halves, one for Rx and one for Tx. The advantage to this is primarily readability. In addition I am enabling relaxed ordering for reads from hardware since this is supported on all of the igb parts. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:27 +00:00
if (q_vector->tx.ring)
igb_update_tx_dca(adapter, q_vector->tx.ring, cpu);
if (q_vector->rx.ring)
igb_update_rx_dca(adapter, q_vector->rx.ring, cpu);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
q_vector->cpu = cpu;
out_no_update:
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
put_cpu();
}
static void igb_setup_dca(struct igb_adapter *adapter)
{
igb: do not re-register DCA requester on device reset The current driver is re-registering the DCA requester after every reset. Instead of doing this we should only be updating the on board DCA registers and not unregistering/re-registering our requester. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-21 13:06:56 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
int i;
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
if (!(adapter->flags & IGB_FLAG_DCA_ENABLED))
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
return;
igb: do not re-register DCA requester on device reset The current driver is re-registering the DCA requester after every reset. Instead of doing this we should only be updating the on board DCA registers and not unregistering/re-registering our requester. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-21 13:06:56 +00:00
/* Always use CB2 mode, difference is masked in the CB driver. */
wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
for (i = 0; i < adapter->num_q_vectors; i++) {
igb: remove unecessary q_vector declarations and remove itr_shift This change removes the use of itr_shift since a mac type call can be used just as easily to identify the only HW that needs to have the itr shifted. In addition it removes two unecessary declarations of a q_vector pointer from the initialization path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:00:41 +00:00
adapter->q_vector[i]->cpu = -1;
igb_update_dca(adapter->q_vector[i]);
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
}
}
static int __igb_notify_dca(struct device *dev, void *data)
{
struct net_device *netdev = dev_get_drvdata(dev);
struct igb_adapter *adapter = netdev_priv(netdev);
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
struct e1000_hw *hw = &adapter->hw;
unsigned long event = *(unsigned long *)data;
switch (event) {
case DCA_PROVIDER_ADD:
/* if already enabled, don't do it again */
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
if (adapter->flags & IGB_FLAG_DCA_ENABLED)
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
break;
if (dca_add_requester(dev) == 0) {
igb: Fix DCA errors and do not use context index for 82576 82576 was being incorrectly flagged as needing a context index. It does not as each ring has it's own table of 2 contexts. Driver was registering after registering the driver instead of the other way around. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31 00:52:30 -08:00
adapter->flags |= IGB_FLAG_DCA_ENABLED;
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_info(&pdev->dev, "DCA enabled\n");
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
igb_setup_dca(adapter);
break;
}
/* Fall Through since DCA is disabled. */
case DCA_PROVIDER_REMOVE:
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
if (adapter->flags & IGB_FLAG_DCA_ENABLED) {
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
/* without this a class_device is left
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
* hanging around in the sysfs model */
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
dca_remove_requester(dev);
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_info(&pdev->dev, "DCA disabled\n");
igb: Add support for quad port WOL and feature flags Change igb from using a series of boolean operators to using a single flags value that contains a number of different bit flags for all the different features of the adapter. This patch also adds WOL support for quad port adapters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:46 -07:00
adapter->flags &= ~IGB_FLAG_DCA_ENABLED;
igb: remove unused defines This patch removes all of the unused defines from the .h files contained in igb. For some defines there was a use and so I plugged them into the correct locations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-15 23:59:44 -08:00
wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE);
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
}
break;
}
igb: Fix DCA errors and do not use context index for 82576 82576 was being incorrectly flagged as needing a context index. It does not as each ring has it's own table of 2 contexts. Driver was registering after registering the driver instead of the other way around. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31 00:52:30 -08:00
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
return 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
static int igb_notify_dca(struct notifier_block *nb, unsigned long event,
void *p)
{
int ret_val;
ret_val = driver_for_each_device(&igb_driver.driver, NULL, &event,
__igb_notify_dca);
return ret_val ? NOTIFY_BAD : NOTIFY_DONE;
}
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#endif /* CONFIG_IGB_DCA */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
#ifdef CONFIG_PCI_IOV
static int igb_vf_configure(struct igb_adapter *adapter, int vf)
{
unsigned char mac_addr[ETH_ALEN];
igb: Don't give VFs random MAC addresses If the user has not assigned a MAC address to a VM, then don't give it a random one. Instead, just give it zeros and let it figure out what to do with them. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Tested-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18 08:57:20 +00:00
eth_zero_addr(mac_addr);
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
igb_set_vf_mac(adapter, vf, mac_addr);
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
return 0;
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
}
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
static bool igb_vfs_are_assigned(struct igb_adapter *adapter)
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
{
struct pci_dev *pdev = adapter->pdev;
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
struct pci_dev *vfdev;
int dev_id;
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
switch (adapter->hw.mac.type) {
case e1000_82576:
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
dev_id = IGB_82576_VF_DEV_ID;
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
break;
case e1000_i350:
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
dev_id = IGB_I350_VF_DEV_ID;
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
break;
default:
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
return false;
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
}
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
/* loop through all the VFs to see if we own any that are assigned */
vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL);
while (vfdev) {
/* if we don't own it we don't care */
if (vfdev->is_virtfn && vfdev->physfn == pdev) {
/* if it is assigned we cannot release it */
if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
return true;
}
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev);
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
}
igb: Change how we check for pre-existing and assigned VFs Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 04:06:11 +00:00
igb: Check if subordinate VFs are assigned to virtual machines Kvm and the Xen pci-back driver will set a flag in the virtual function pci device dev_flags when the VF is assigned to a guest VM. Before destroying subordinate VFs check to see if the flag is set and if so skip the call to pci_disable_sriov() to avoid system crashes. Copy the maintainer for the Xen pci-back driver. Also CC'ing maintainers of all drivers found to call pci_disable_sriov(). V2 - Fix uninitialized variable warning Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Dimitris Michailidis <dm@chelsio.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: James Smart <james.smart@emulex.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-14 02:57:14 +00:00
return false;
}
#endif
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
static void igb_ping_all_vfs(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 ping;
int i;
for (i = 0 ; i < adapter->vfs_allocated_count; i++) {
ping = E1000_PF_CONTROL_MSG;
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
if (adapter->vf_data[i].flags & IGB_VF_FLAG_CTS)
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
ping |= E1000_VT_MSGTYPE_CTS;
igb_write_mbx(hw, &ping, 1, i);
}
}
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
static int igb_set_vf_promisc(struct igb_adapter *adapter, u32 *msgbuf, u32 vf)
{
struct e1000_hw *hw = &adapter->hw;
u32 vmolr = rd32(E1000_VMOLR(vf));
struct vf_data_storage *vf_data = &adapter->vf_data[vf];
igb: clear VF_PROMISC bits instead of setting all other bits This change corrects an issue in which we were setting all flag bits except for promisc instead of clearing the promisc bits due to the incorrect use of an |= instead of an &=. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22 17:56:20 +00:00
vf_data->flags &= ~(IGB_VF_FLAG_UNI_PROMISC |
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
IGB_VF_FLAG_MULTI_PROMISC);
vmolr &= ~(E1000_VMOLR_ROPE | E1000_VMOLR_ROMPE | E1000_VMOLR_MPME);
if (*msgbuf & E1000_VF_SET_PROMISC_MULTICAST) {
vmolr |= E1000_VMOLR_MPME;
igb: clear VF_PROMISC bits instead of setting all other bits This change corrects an issue in which we were setting all flag bits except for promisc instead of clearing the promisc bits due to the incorrect use of an |= instead of an &=. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22 17:56:20 +00:00
vf_data->flags |= IGB_VF_FLAG_MULTI_PROMISC;
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
*msgbuf &= ~E1000_VF_SET_PROMISC_MULTICAST;
} else {
/*
* if we have hashes and we are clearing a multicast promisc
* flag we need to write the hashes to the MTA as this step
* was previously skipped
*/
if (vf_data->num_vf_mc_hashes > 30) {
vmolr |= E1000_VMOLR_MPME;
} else if (vf_data->num_vf_mc_hashes) {
int j;
vmolr |= E1000_VMOLR_ROMPE;
for (j = 0; j < vf_data->num_vf_mc_hashes; j++)
igb_mta_set(hw, vf_data->vf_mc_hashes[j]);
}
}
wr32(E1000_VMOLR(vf), vmolr);
/* there are flags left unprocessed, likely not supported */
if (*msgbuf & E1000_VT_MSGINFO_MASK)
return -EINVAL;
return 0;
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
static int igb_set_vf_multicasts(struct igb_adapter *adapter,
u32 *msgbuf, u32 vf)
{
int n = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT;
u16 *hash_list = (u16 *)&msgbuf[1];
struct vf_data_storage *vf_data = &adapter->vf_data[vf];
int i;
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
/* salt away the number of multicast addresses assigned
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
* to this VF for later use to restore when the PF multi cast
* list changes
*/
vf_data->num_vf_mc_hashes = n;
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
/* only up to 30 hash values supported */
if (n > 30)
n = 30;
/* store the hashes for later use */
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
for (i = 0; i < n; i++)
trivial: remove unnecessary semicolons Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-08-18 11:18:35 -07:00
vf_data->vf_mc_hashes[i] = hash_list[i];
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* Flush and reset the mta with the new values */
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
igb_set_rx_mode(adapter->netdev);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
return 0;
}
static void igb_restore_vf_multicasts(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct vf_data_storage *vf_data;
int i, j;
for (i = 0; i < adapter->vfs_allocated_count; i++) {
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
u32 vmolr = rd32(E1000_VMOLR(i));
vmolr &= ~(E1000_VMOLR_ROMPE | E1000_VMOLR_MPME);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
vf_data = &adapter->vf_data[i];
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
if ((vf_data->num_vf_mc_hashes > 30) ||
(vf_data->flags & IGB_VF_FLAG_MULTI_PROMISC)) {
vmolr |= E1000_VMOLR_MPME;
} else if (vf_data->num_vf_mc_hashes) {
vmolr |= E1000_VMOLR_ROMPE;
for (j = 0; j < vf_data->num_vf_mc_hashes; j++)
igb_mta_set(hw, vf_data->vf_mc_hashes[j]);
}
wr32(E1000_VMOLR(i), vmolr);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
}
static void igb_clear_vf_vfta(struct igb_adapter *adapter, u32 vf)
{
struct e1000_hw *hw = &adapter->hw;
u32 pool_mask, reg, vid;
int i;
pool_mask = 1 << (E1000_VLVF_POOLSEL_SHIFT + vf);
/* Find the vlan filter for this id */
for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
reg = rd32(E1000_VLVF(i));
/* remove the vf from the pool */
reg &= ~pool_mask;
/* if pool is empty then remove entry from vfta */
if (!(reg & E1000_VLVF_POOLSEL_MASK) &&
(reg & E1000_VLVF_VLANID_ENABLE)) {
reg = 0;
vid = reg & E1000_VLVF_VLANID_MASK;
igb_vfta_set(hw, vid, false);
}
wr32(E1000_VLVF(i), reg);
}
igb: set vf rlpml wasn't taking vlan tag into account This patch updates things so that vlan tags are taken into account when setting the receive large packet maximum length. This allows the VF driver to correctly receive full sized frames when vlans are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:49:33 +00:00
adapter->vf_data[vf].vlans_enabled = 0;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf)
{
struct e1000_hw *hw = &adapter->hw;
u32 reg, i;
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* The vlvf table only exists on 82576 hardware and newer */
if (hw->mac.type < e1000_82576)
return -1;
/* we only need to do this if VMDq is enabled */
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
if (!adapter->vfs_allocated_count)
return -1;
/* Find the vlan filter for this id */
for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
reg = rd32(E1000_VLVF(i));
if ((reg & E1000_VLVF_VLANID_ENABLE) &&
vid == (reg & E1000_VLVF_VLANID_MASK))
break;
}
if (add) {
if (i == E1000_VLVF_ARRAY_SIZE) {
/* Did not find a matching VLAN ID entry that was
* enabled. Search for a free filter entry, i.e.
* one without the enable bit set
*/
for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
reg = rd32(E1000_VLVF(i));
if (!(reg & E1000_VLVF_VLANID_ENABLE))
break;
}
}
if (i < E1000_VLVF_ARRAY_SIZE) {
/* Found an enabled/available entry */
reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT + vf);
/* if !enabled we need to set this up in vfta */
if (!(reg & E1000_VLVF_VLANID_ENABLE)) {
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* add VID to filter table */
igb_vfta_set(hw, vid, true);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
reg |= E1000_VLVF_VLANID_ENABLE;
}
igb: add PF to pool Add Pf to pool if adding a VLVF register value and the VFTA bit is already set. This patch addresses the unlikely situation that the PF adds a vlan entry when the vlvf is full, and a vf later adds the vlan to the vlvf. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 20:41:37 +00:00
reg &= ~E1000_VLVF_VLANID_MASK;
reg |= vid;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
wr32(E1000_VLVF(i), reg);
igb: set vf rlpml wasn't taking vlan tag into account This patch updates things so that vlan tags are taken into account when setting the receive large packet maximum length. This allows the VF driver to correctly receive full sized frames when vlans are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:49:33 +00:00
/* do not modify RLPML for PF devices */
if (vf >= adapter->vfs_allocated_count)
return 0;
if (!adapter->vf_data[vf].vlans_enabled) {
u32 size;
reg = rd32(E1000_VMOLR(vf));
size = reg & E1000_VMOLR_RLPML_MASK;
size += 4;
reg &= ~E1000_VMOLR_RLPML_MASK;
reg |= size;
wr32(E1000_VMOLR(vf), reg);
}
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
adapter->vf_data[vf].vlans_enabled++;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
} else {
if (i < E1000_VLVF_ARRAY_SIZE) {
/* remove vf from the pool */
reg &= ~(1 << (E1000_VLVF_POOLSEL_SHIFT + vf));
/* if pool is empty then remove entry from vfta */
if (!(reg & E1000_VLVF_POOLSEL_MASK)) {
reg = 0;
igb_vfta_set(hw, vid, false);
}
wr32(E1000_VLVF(i), reg);
igb: set vf rlpml wasn't taking vlan tag into account This patch updates things so that vlan tags are taken into account when setting the receive large packet maximum length. This allows the VF driver to correctly receive full sized frames when vlans are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:49:33 +00:00
/* do not modify RLPML for PF devices */
if (vf >= adapter->vfs_allocated_count)
return 0;
adapter->vf_data[vf].vlans_enabled--;
if (!adapter->vf_data[vf].vlans_enabled) {
u32 size;
reg = rd32(E1000_VMOLR(vf));
size = reg & E1000_VMOLR_RLPML_MASK;
size -= 4;
reg &= ~E1000_VMOLR_RLPML_MASK;
reg |= size;
wr32(E1000_VMOLR(vf), reg);
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
}
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
return 0;
}
static void igb_set_vmvir(struct igb_adapter *adapter, u32 vid, u32 vf)
{
struct e1000_hw *hw = &adapter->hw;
if (vid)
wr32(E1000_VMVIR(vf), (vid | E1000_VMVIR_VLANA_DEFAULT));
else
wr32(E1000_VMVIR(vf), 0);
}
static int igb_ndo_set_vf_vlan(struct net_device *netdev,
int vf, u16 vlan, u8 qos)
{
int err = 0;
struct igb_adapter *adapter = netdev_priv(netdev);
if ((vf >= adapter->vfs_allocated_count) || (vlan > 4095) || (qos > 7))
return -EINVAL;
if (vlan || qos) {
err = igb_vlvf_set(adapter, vlan, !!vlan, vf);
if (err)
goto out;
igb_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf);
igb_set_vmolr(adapter, vf, !vlan);
adapter->vf_data[vf].pf_vlan = vlan;
adapter->vf_data[vf].pf_qos = qos;
dev_info(&adapter->pdev->dev,
"Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
if (test_bit(__IGB_DOWN, &adapter->state)) {
dev_warn(&adapter->pdev->dev,
"The VF VLAN has been set,"
" but the PF device is not up.\n");
dev_warn(&adapter->pdev->dev,
"Bring the PF device up before"
" attempting to use the VF device.\n");
}
} else {
igb_vlvf_set(adapter, adapter->vf_data[vf].pf_vlan,
false, vf);
igb_set_vmvir(adapter, vlan, vf);
igb_set_vmolr(adapter, vf, true);
adapter->vf_data[vf].pf_vlan = 0;
adapter->vf_data[vf].pf_qos = 0;
}
out:
return err;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf)
{
int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT;
int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK);
return igb_vlvf_set(adapter, vid, add, vf);
}
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf)
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
{
igb: Fix overwrite of the VF's flags The vf flags were being overwritten causing the flag that indicates that the PF has set the VF MAC address to get cleared. This would allow the VF to override the MAC address assigned by the Host VMM using the ip link set command. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 05:43:21 +00:00
/* clear flags - except flag that indicates PF has set the MAC */
adapter->vf_data[vf].flags &= IGB_VF_FLAG_PF_SET_MAC;
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
adapter->vf_data[vf].last_nack = jiffies;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* reset offloads to defaults */
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
igb_set_vmolr(adapter, vf, true);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* reset vlans for device */
igb_clear_vf_vfta(adapter, vf);
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
if (adapter->vf_data[vf].pf_vlan)
igb_ndo_set_vf_vlan(adapter->netdev, vf,
adapter->vf_data[vf].pf_vlan,
adapter->vf_data[vf].pf_qos);
else
igb_clear_vf_vfta(adapter, vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* reset multicast table array for vf */
adapter->vf_data[vf].num_vf_mc_hashes = 0;
/* Flush and reset the mta with the new values */
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
igb_set_rx_mode(adapter->netdev);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
static void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf)
{
unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses;
igb: Don't give VFs random MAC addresses If the user has not assigned a MAC address to a VM, then don't give it a random one. Instead, just give it zeros and let it figure out what to do with them. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Tested-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18 08:57:20 +00:00
/* clear mac address as we were hotplug removed/added */
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
if (!(adapter->vf_data[vf].flags & IGB_VF_FLAG_PF_SET_MAC))
igb: Don't give VFs random MAC addresses If the user has not assigned a MAC address to a VM, then don't give it a random one. Instead, just give it zeros and let it figure out what to do with them. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Tested-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18 08:57:20 +00:00
eth_zero_addr(vf_mac);
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
/* process remaining reset events */
igb_vf_reset(adapter, vf);
}
static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf)
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
{
struct e1000_hw *hw = &adapter->hw;
unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses;
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
int rar_entry = hw->mac.rar_entry_count - (vf + 1);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
u32 reg, msgbuf[3];
u8 *addr = (u8 *)(&msgbuf[1]);
/* process all the same items cleared in a function level reset */
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
igb_vf_reset(adapter, vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* set vf mac address */
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
igb_rar_set_qsel(adapter, vf_mac, rar_entry, vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* enable transmit and receive for vf */
reg = rd32(E1000_VFTE);
wr32(E1000_VFTE, reg | (1 << vf));
reg = rd32(E1000_VFRE);
wr32(E1000_VFRE, reg | (1 << vf));
igb: Fix overwrite of the VF's flags The vf flags were being overwritten causing the flag that indicates that the PF has set the VF MAC address to get cleared. This would allow the VF to override the MAC address assigned by the Host VMM using the ip link set command. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 05:43:21 +00:00
adapter->vf_data[vf].flags |= IGB_VF_FLAG_CTS;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* reply to reset with ack and vf mac address */
msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK;
memcpy(addr, vf_mac, 6);
igb_write_mbx(hw, msgbuf, 3, vf);
}
static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf)
{
igb: Add comment Add explanatory comment to avoid confusion when a pointer is set to the second word of an array instead of the customary cast of a pointer to the beginning of the array. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-01 13:39:23 +00:00
/*
* The VF MAC Address is stored in a packed array of bytes
* starting at the second 32 bit word of the msg array
*/
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
unsigned char *addr = (char *)&msg[1];
int err = -1;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
if (is_valid_ether_addr(addr))
err = igb_set_vf_mac(adapter, vf, addr);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
return err;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
static void igb_rcv_ack_from_vf(struct igb_adapter *adapter, u32 vf)
{
struct e1000_hw *hw = &adapter->hw;
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
struct vf_data_storage *vf_data = &adapter->vf_data[vf];
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
u32 msg = E1000_VT_MSGTYPE_NACK;
/* if device isn't clear to send it shouldn't be reading either */
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
if (!(vf_data->flags & IGB_VF_FLAG_CTS) &&
time_after(jiffies, vf_data->last_nack + (2 * HZ))) {
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb_write_mbx(hw, &msg, 1, vf);
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
vf_data->last_nack = jiffies;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
}
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
static void igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf)
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
{
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
struct pci_dev *pdev = adapter->pdev;
u32 msgbuf[E1000_VFMAILBOX_SIZE];
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
struct e1000_hw *hw = &adapter->hw;
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
struct vf_data_storage *vf_data = &adapter->vf_data[vf];
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
s32 retval;
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
retval = igb_read_mbx(hw, msgbuf, E1000_VFMAILBOX_SIZE, vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: fix handling of mailbox collisions between PF/VF This patch changes the handling of collisions between the use of the PF/VF sides of the mailbox. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 22:57:34 -08:00
if (retval) {
/* if receive failed revoke VF CTS stats and restart init */
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
dev_err(&pdev->dev, "Error receiving message from VF\n");
igb: fix handling of mailbox collisions between PF/VF This patch changes the handling of collisions between the use of the PF/VF sides of the mailbox. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 22:57:34 -08:00
vf_data->flags &= ~IGB_VF_FLAG_CTS;
if (!time_after(jiffies, vf_data->last_nack + (2 * HZ)))
return;
goto out;
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* this is a message we already processed, do nothing */
if (msgbuf[0] & (E1000_VT_MSGTYPE_ACK | E1000_VT_MSGTYPE_NACK))
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
return;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/*
* until the vf completes a reset it should not be
* allowed to start any configuration.
*/
if (msgbuf[0] == E1000_VF_RESET) {
igb_vf_reset_msg(adapter, vf);
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
return;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
if (!(vf_data->flags & IGB_VF_FLAG_CTS)) {
igb: fix handling of mailbox collisions between PF/VF This patch changes the handling of collisions between the use of the PF/VF sides of the mailbox. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 22:57:34 -08:00
if (!time_after(jiffies, vf_data->last_nack + (2 * HZ)))
return;
retval = -1;
goto out;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
switch ((msgbuf[0] & 0xFFFF)) {
case E1000_VF_SET_MAC_ADDR:
igb: Warn on attempt to override administratively set MAC/VLAN Print a warning message to the system log when the VF attempts to override administratively set MAC/VLAN configuration. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 05:42:59 +00:00
retval = -EINVAL;
if (!(vf_data->flags & IGB_VF_FLAG_PF_SET_MAC))
retval = igb_set_vf_mac_addr(adapter, msgbuf, vf);
else
dev_warn(&pdev->dev,
"VF %d attempted to override administratively "
"set MAC address\nReload the VF driver to "
"resume operations\n", vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
break;
igb: rework use of VMOLR in regards to PF and VFs This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:16 +00:00
case E1000_VF_SET_PROMISC:
retval = igb_set_vf_promisc(adapter, msgbuf, vf);
break;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
case E1000_VF_SET_MULTICAST:
retval = igb_set_vf_multicasts(adapter, msgbuf, vf);
break;
case E1000_VF_SET_LPE:
retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf);
break;
case E1000_VF_SET_VLAN:
igb: Warn on attempt to override administratively set MAC/VLAN Print a warning message to the system log when the VF attempts to override administratively set MAC/VLAN configuration. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 05:42:59 +00:00
retval = -1;
if (vf_data->pf_vlan)
dev_warn(&pdev->dev,
"VF %d attempted to override administratively "
"set VLAN tag\nReload the VF driver to "
"resume operations\n", vf);
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
else
retval = igb_set_vf_vlan(adapter, msgbuf, vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
break;
default:
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
dev_err(&pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
retval = -1;
break;
}
igb: fix handling of mailbox collisions between PF/VF This patch changes the handling of collisions between the use of the PF/VF sides of the mailbox. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 22:57:34 -08:00
msgbuf[0] |= E1000_VT_MSGTYPE_CTS;
out:
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
/* notify the VF of the results of what it sent us */
if (retval)
msgbuf[0] |= E1000_VT_MSGTYPE_NACK;
else
msgbuf[0] |= E1000_VT_MSGTYPE_ACK;
igb_write_mbx(hw, msgbuf, 1, vf);
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: replace the VF clear_to_send with a flags value In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:46:57 +00:00
static void igb_msg_task(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 vf;
for (vf = 0; vf < adapter->vfs_allocated_count; vf++) {
/* process any reset requests */
if (!igb_check_for_rst(hw, vf))
igb_vf_reset_event(adapter, vf);
/* process any messages pending */
if (!igb_check_for_msg(hw, vf))
igb_rcv_msg_from_vf(adapter, vf);
/* process any acks */
if (!igb_check_for_ack(hw, vf))
igb_rcv_ack_from_vf(adapter, vf);
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
/**
* igb_set_uta - Set unicast filter table address
* @adapter: board private structure
*
* The unicast table address is a register array of 32-bit registers.
* The table is meant to be used in a way similar to how the MTA is used
* however due to certain limitations in the hardware it is necessary to
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
* set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous
* enable bit to allow vlan tag stripping when promiscuous mode is enabled
igb: make use of the uta to allow for promiscous mode filter In order to support functions such as vlan tag stripping when SR-IOV is enabled any given packet must match at least one filter. However in the case of promiscous mode being enabled on the PF the traffic routed to it may not match any filters and is just sent to the PF by default. In order to make certain that this traffic is processed we can set all bits in the UTA registers to create a pseudo promiscous mode filter that accepts all packets. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:33:08 +00:00
**/
static void igb_set_uta(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
int i;
/* The UTA table only exists on 82576 hardware and newer */
if (hw->mac.type < e1000_82576)
return;
/* we only need to do this if VMDq is enabled */
if (!adapter->vfs_allocated_count)
return;
for (i = 0; i < hw->mac.uta_reg_count; i++)
array_wr32(E1000_UTA, i, ~0);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_intr_msi - Interrupt Handler
* @irq: interrupt number
* @data: pointer to a network interface device structure
**/
static irqreturn_t igb_intr_msi(int irq, void *data)
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = data;
struct igb_q_vector *q_vector = adapter->q_vector[0];
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_hw *hw = &adapter->hw;
/* read ICR disables interrupts using IAM */
u32 icr = rd32(E1000_ICR);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_write_itr(q_vector);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add support for device reset interrupt This patch adds support for the global device reset interrupt. Without this change the drivers will report tx hangs on all ports when a global device reset occurs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 17:41:00 +00:00
if (icr & E1000_ICR_DRSTA)
schedule_work(&adapter->reset_task);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (icr & E1000_ICR_DOUTSYNC) {
igb: add counter for dma out of sync errors Add a counter for dma out of sync errors reported via interrupt. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:08 +00:00
/* HW is reporting DMA is out of sync */
adapter->stats.doosync++;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
hw->mac.get_link_status = 1;
if (!test_bit(__IGB_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
if (icr & E1000_ICR_TS) {
u32 tsicr = rd32(E1000_TSICR);
if (tsicr & E1000_TSICR_TXTS) {
/* acknowledge the interrupt */
wr32(E1000_TSICR, E1000_TSICR_TXTS);
/* retrieve hardware timestamp */
schedule_work(&adapter->ptp_tx_work);
}
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
napi_schedule(&q_vector->napi);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return IRQ_HANDLED;
}
/**
igb: don't read eicr when responding to legacy interrupts The interrupt handler was reading eicr and then doing nothing with the result. I have removed the variable and the register read since they provide no value to the legacy interrupt handler. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:20:49 +00:00
* igb_intr - Legacy Interrupt Handler
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* @irq: interrupt number
* @data: pointer to a network interface device structure
**/
static irqreturn_t igb_intr(int irq, void *data)
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = data;
struct igb_q_vector *q_vector = adapter->q_vector[0];
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_hw *hw = &adapter->hw;
/* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No
* need for the IMC write */
u32 icr = rd32(E1000_ICR);
/* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
* not set, then the adapter didn't send an interrupt */
if (!(icr & E1000_ICR_INT_ASSERTED))
return IRQ_NONE;
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
igb_write_itr(q_vector);
igb: add support for device reset interrupt This patch adds support for the global device reset interrupt. Without this change the drivers will report tx hangs on all ports when a global device reset occurs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 17:41:00 +00:00
if (icr & E1000_ICR_DRSTA)
schedule_work(&adapter->reset_task);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (icr & E1000_ICR_DOUTSYNC) {
igb: add counter for dma out of sync errors Add a counter for dma out of sync errors reported via interrupt. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:08 +00:00
/* HW is reporting DMA is out of sync */
adapter->stats.doosync++;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
hw->mac.get_link_status = 1;
/* guard against interrupt when we're going down */
if (!test_bit(__IGB_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
igb: Prevent dropped Tx timestamps via work items and interrupts. In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-18 07:26:33 +00:00
if (icr & E1000_ICR_TS) {
u32 tsicr = rd32(E1000_TSICR);
if (tsicr & E1000_TSICR_TXTS) {
/* acknowledge the interrupt */
wr32(E1000_TSICR, E1000_TSICR_TXTS);
/* retrieve hardware timestamp */
schedule_work(&adapter->ptp_tx_work);
}
}
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
napi_schedule(&q_vector->napi);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return IRQ_HANDLED;
}
igb: make local functions static Sparse caught two functions that were only being used in one file. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-18 22:13:26 +00:00
static void igb_ring_irq_enable(struct igb_q_vector *q_vector)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: update napi polling to consolidate function and return correct values igb is currently not returning the correct values for napi. In addition it is doing more work than necessary since it will not exit polling until work_done is equal to zero. This patch makes the following changes: 1. Consolidates msi-x and non-msi polling routines. 2. Corrects return values for polling routines. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:04 -08:00
struct e1000_hw *hw = &adapter->hw;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
if ((q_vector->rx.ring && (adapter->rx_itr_setting & 3)) ||
(!q_vector->rx.ring && (adapter->tx_itr_setting & 3))) {
if ((adapter->num_q_vectors == 1) && !adapter->vf_data)
igb_set_itr(q_vector);
igb: update napi polling to consolidate function and return correct values igb is currently not returning the correct values for napi. In addition it is doing more work than necessary since it will not exit polling until work_done is equal to zero. This patch makes the following changes: 1. Consolidates msi-x and non-msi polling routines. 2. Corrects return values for polling routines. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:04 -08:00
else
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_update_ring_itr(q_vector);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: update napi polling to consolidate function and return correct values igb is currently not returning the correct values for napi. In addition it is doing more work than necessary since it will not exit polling until work_done is equal to zero. This patch makes the following changes: 1. Consolidates msi-x and non-msi polling routines. 2. Corrects return values for polling routines. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:04 -08:00
if (!test_bit(__IGB_DOWN, &adapter->state)) {
if (adapter->msix_entries)
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
wr32(E1000_EIMS, q_vector->eims_value);
igb: update napi polling to consolidate function and return correct values igb is currently not returning the correct values for napi. In addition it is doing more work than necessary since it will not exit polling until work_done is equal to zero. This patch makes the following changes: 1. Consolidates msi-x and non-msi polling routines. 2. Corrects return values for polling routines. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:04 -08:00
else
igb_irq_enable(adapter);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: update napi polling to consolidate function and return correct values igb is currently not returning the correct values for napi. In addition it is doing more work than necessary since it will not exit polling until work_done is equal to zero. This patch makes the following changes: 1. Consolidates msi-x and non-msi polling routines. 2. Corrects return values for polling routines. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:04 -08:00
/**
* igb_poll - NAPI Rx polling callback
* @napi: napi polling structure
* @budget: count of how many packets we should handle
**/
static int igb_poll(struct napi_struct *napi, int budget)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_q_vector *q_vector = container_of(napi,
struct igb_q_vector,
napi);
igb: Refactor clean_rx_irq to reduce overhead and improve performance This change is meant to be a general cleanup and performance improvement for clean_rx_irq. The previous patch should have updated the allocation so that the rings can be treated as read-only within the clean_rx_irq function. In addition I am re-ordering the operations such that several goals are accomplished including reducing the overhead for packet accounting, reducing the number of items on the stack, and improving overall performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:54 +00:00
bool clean_complete = true;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: add IGB_DCA instead of selecting INTEL_IOATDMA Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver. Based on work/patch from Brice Goglin <brice@myri.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-17 11:08:31 -07:00
#ifdef CONFIG_IGB_DCA
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
if (q_vector->adapter->flags & IGB_FLAG_DCA_ENABLED)
igb_update_dca(q_vector);
igb: add DCA support Add DCA support in the similar method that it was added to the ixgbe driver recently. DCA allows the network device to put data in the CPU cache and notify the chipset of that event. This reduces cache misses during receives. Signed-off-by: Jeb Cramer <cramerj@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:07:55 -07:00
#endif
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
if (q_vector->tx.ring)
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
clean_complete = igb_clean_tx_irq(q_vector);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
if (q_vector->rx.ring)
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
clean_complete &= igb_clean_rx_irq(q_vector, budget);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb: Refactor clean_rx_irq to reduce overhead and improve performance This change is meant to be a general cleanup and performance improvement for clean_rx_irq. The previous patch should have updated the allocation so that the rings can be treated as read-only within the clean_rx_irq function. In addition I am re-ordering the operations such that several goals are accomplished including reducing the overhead for packet accounting, reducing the number of items on the stack, and improving overall performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:54 +00:00
/* If all work not completed, return budget and keep polling */
if (!clean_complete)
return budget;
igb: update napi polling to consolidate function and return correct values igb is currently not returning the correct values for napi. In addition it is doing more work than necessary since it will not exit polling until work_done is equal to zero. This patch makes the following changes: 1. Consolidates msi-x and non-msi polling routines. 2. Corrects return values for polling routines. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:04 -08:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* If not enough Rx work done, exit the polling mode */
igb: Refactor clean_rx_irq to reduce overhead and improve performance This change is meant to be a general cleanup and performance improvement for clean_rx_irq. The previous patch should have updated the allocation so that the rings can be treated as read-only within the clean_rx_irq function. In addition I am re-ordering the operations such that several goals are accomplished including reducing the overhead for packet accounting, reducing the number of items on the stack, and improving overall performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:54 +00:00
napi_complete(napi);
igb_ring_irq_enable(q_vector);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Refactor clean_rx_irq to reduce overhead and improve performance This change is meant to be a general cleanup and performance improvement for clean_rx_irq. The previous patch should have updated the allocation so that the rings can be treated as read-only within the clean_rx_irq function. In addition I am re-ordering the operations such that several goals are accomplished including reducing the overhead for packet accounting, reducing the number of items on the stack, and improving overall performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:54 +00:00
return 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb trivial annotations Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-16 22:23:24 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
* igb_clean_tx_irq - Reclaim resources after transmit completes
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
* @q_vector: pointer to q_vector containing needed info
drivers/net/ethernet: Fix (nearly-)kernel-doc comments for various functions Fix incorrect start markers, wrapped summary lines, missing section breaks, incorrect separators, and some name mismatches. Delete a few that are content-free. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-10 10:56:00 +00:00
*
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* returns true if ring is completely cleaned
**/
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
struct igb_adapter *adapter = q_vector->adapter;
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
struct igb_ring *tx_ring = q_vector->tx.ring;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_tx_buffer *tx_buffer;
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
union e1000_adv_tx_desc *tx_desc;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
unsigned int total_bytes = 0, total_packets = 0;
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
unsigned int budget = q_vector->tx.work_limit;
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
unsigned int i = tx_ring->next_to_clean;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
if (test_bit(__IGB_DOWN, &adapter->state))
return true;
igb: defeature tx head writeback This patch removes tx head writeback as it was found to not provide a significant improvement in tx performance and on some systems has been seen to cause a performance degredation due to partial cache line writes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:33:18 -08:00
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
tx_buffer = &tx_ring->tx_buffer_info[i];
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
tx_desc = IGB_TX_DESC(tx_ring, i);
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
i -= tx_ring->count;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
do {
union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
/* if next_to_watch is not set then there is no work pending */
if (!eop_desc)
break;
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
/* prevent any other reads prior to eop_desc */
igb: Replace rmb in Tx cleanup with read_barrier_depends The rmb in the Tx cleanup path is a much stronger barrier than we really need. All that is really needed is a read_barrier_depends since the location of the EOP descriptor is dependent on the eop_desc value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-08 07:01:03 +00:00
read_barrier_depends();
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
/* if DD is not set pending work has not been completed */
if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)))
break;
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
/* clear next_to_watch to prevent false hangs */
tx_buffer->next_to_watch = NULL;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* update the statistics for this packet */
total_bytes += tx_buffer->bytecount;
total_packets += tx_buffer->gso_segs;
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* free the skb */
dev_kfree_skb_any(tx_buffer->skb);
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* unmap skb header data */
dma_unmap_single(tx_ring->dev,
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_addr(tx_buffer, dma),
dma_unmap_len(tx_buffer, len),
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
DMA_TO_DEVICE);
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
/* clear tx_buffer data */
tx_buffer->skb = NULL;
dma_unmap_len_set(tx_buffer, len, 0);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* clear last DMA location and unmap remaining buffers */
while (tx_desc != eop_desc) {
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
tx_buffer++;
tx_desc++;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
i++;
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
if (unlikely(!i)) {
i -= tx_ring->count;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
tx_buffer = tx_ring->tx_buffer_info;
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
tx_desc = IGB_TX_DESC(tx_ring, 0);
}
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
/* unmap any remaining paged data */
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
if (dma_unmap_len(tx_buffer, len)) {
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
dma_unmap_page(tx_ring->dev,
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_addr(tx_buffer, dma),
dma_unmap_len(tx_buffer, len),
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
DMA_TO_DEVICE);
igb: Use dma_unmap_addr and dma_unmap_len defines This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-18 01:56:27 +00:00
dma_unmap_len_set(tx_buffer, len, 0);
igb: consolidate creation of Tx buffer info and data descriptor This change will combine the writes of tx_buffer_info and the Tx data descriptors into a single function. The advantage of this is that we can avoid needless memory reads from the buffer info struct and speed things up by keeping the accesses to the local registers. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:09 +00:00
}
}
/* move us one more past the eop_desc for start of next pkt */
tx_buffer++;
tx_desc++;
i++;
if (unlikely(!i)) {
i -= tx_ring->count;
tx_buffer = tx_ring->tx_buffer_info;
tx_desc = IGB_TX_DESC(tx_ring, 0);
}
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
/* issue prefetch for next Tx descriptor */
prefetch(tx_desc);
/* update budget accounting */
budget--;
} while (likely(budget));
igb: defeature tx head writeback This patch removes tx head writeback as it was found to not provide a significant improvement in tx performance and on some systems has been seen to cause a performance degredation due to partial cache line writes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 01:33:18 -08:00
igb: Add support for byte queue limits. This adds support for byte queue limits (BQL) Since this driver collects bytes count in 'bytecount' field, use it also in igb_tx_map() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:36 +00:00
netdev_tx_completed_queue(txring_txq(tx_ring),
total_packets, total_bytes);
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
i += tx_ring->count;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tx_ring->next_to_clean = i;
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
u64_stats_update_begin(&tx_ring->tx_syncp);
tx_ring->tx_stats.bytes += total_bytes;
tx_ring->tx_stats.packets += total_packets;
u64_stats_update_end(&tx_ring->tx_syncp);
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
q_vector->tx.total_bytes += total_bytes;
q_vector->tx.total_packets += total_packets;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: move TX hang check flag into ring->flags This change moves the Tx hang check into the ring flags. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:19 +00:00
if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) {
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Detect a transmit hang in hardware, this serializes the
* check with the clearing of time_stamp and movement of i */
igb: move TX hang check flag into ring->flags This change moves the Tx hang check into the ring flags. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:19 +00:00
clear_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags);
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
if (tx_buffer->next_to_watch &&
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
time_after(jiffies, tx_buffer->time_stamp +
drivers/net: Move && and || to end of previous line Only files where David Miller is the primary git-signer. wireless, wimax, ixgbe, etc are not modified. Compile tested x86 allyesconfig only Not all files compiled (not x86 compatible) Added a few > 80 column lines, which I ignored. Existing checkpatch complaints ignored. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03 07:58:21 +00:00
(adapter->tx_timeout_factor * HZ)) &&
!(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* detected Tx unit hang */
igb: convert igb from using PCI DMA functions to using DMA API functions This patch makes it so that igb now uses the DMA API functions instead of the PCI API functions. To do this the pci_dev pointer that was in the rings has been replaced with a device pointer, and as a result all references to [tr]x_ring->pdev have been replaced with [tr]x_ring->dev. This patch is based of of work originally done by Nicholas Nunley. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 13:09:25 +00:00
dev_err(tx_ring->dev,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
"Detected Tx Unit Hang\n"
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
" Tx Queue <%d>\n"
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
" TDH <%x>\n"
" TDT <%x>\n"
" next_to_use <%x>\n"
" next_to_clean <%x>\n"
"buffer_info[next_to_clean]\n"
" time_stamp <%lx>\n"
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
" next_to_watch <%p>\n"
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
" jiffies <%lx>\n"
" desc.status <%x>\n",
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
tx_ring->queue_index,
igb: update ring and adapter structure to improve performance This change is meant to improve performance by splitting the Tx and Rx rings into 3 sections. The first is primarily a read only section containing basic things like the indexes, a pointer to the dev and netdev structures, and basic information. The second section contains the stats and next_to_use and next_to_clean values. The third section is primarily unused values that can just be placed at the end of the ring and are not used in the hot path. The adapter structure has several sections that are read in the hot path. In order to improve performance there I am combining the frequent read hot path items into a single cache line. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:48 +00:00
rd32(E1000_TDH(tx_ring->reg_idx)),
igb: change the head and tail offsets into pointers Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:27 +00:00
readl(tx_ring->tail),
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
tx_ring->next_to_use,
tx_ring->next_to_clean,
igb: Make first and tx_buffer_info->next_to_watch into pointers This change converts two tx_buffer_info index values into pointers. The advantage to this is that we reduce unnecessary computations and in the case of next_to_watch we get an added bonus of the value being able to provide additional information as a NULL value indicates it is unset versus a 0 not having any meaning for the index value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:43 +00:00
tx_buffer->time_stamp,
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
tx_buffer->next_to_watch,
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
jiffies,
igb: Change Tx cleanup loop to do/while instead of for This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-13 06:28:01 +00:00
tx_buffer->next_to_watch->wb.status);
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
netif_stop_subqueue(tx_ring->netdev,
tx_ring->queue_index);
/* we are about to reset, no point in enabling stuff */
return true;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
igb: Update igb to use a path similar to ixgbe to determine when to stop Tx After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-09 04:27:48 +00:00
#define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
if (unlikely(total_packets &&
netif_carrier_ok(tx_ring->netdev) &&
igb: Update igb to use a path similar to ixgbe to determine when to stop Tx After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-09 04:27:48 +00:00
igb_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD)) {
igb: Make Tx budget for NAPI user adjustable This change is to make the NAPI budget limits for transmit adjustable. Currently they are only set to 128, and when the changes/improvements to NAPI occur to allow for adjustability, it would be possible to tune the value for optimal performance with applications such as routing. v2: remove tie between NAPI and interrupt moderation fix work limit define name (s/IXGBE/IGB/) Update patch description to better reflect patch Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2011-10-05 13:35:24 +00:00
/* Make sure that anybody stopping the queue after this
* sees the new next_to_clean.
*/
smp_mb();
if (__netif_subqueue_stopped(tx_ring->netdev,
tx_ring->queue_index) &&
!(test_bit(__IGB_DOWN, &adapter->state))) {
netif_wake_subqueue(tx_ring->netdev,
tx_ring->queue_index);
u64_stats_update_begin(&tx_ring->tx_syncp);
tx_ring->tx_stats.restart_queue++;
u64_stats_update_end(&tx_ring->tx_syncp);
}
}
return !!budget;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/**
* igb_reuse_rx_page - page flip buffer and store it back on the ring
* @rx_ring: rx descriptor ring to store buffers on
* @old_buff: donor buffer to have page reused
*
* Synchronizes page for reuse by the adapter
**/
static void igb_reuse_rx_page(struct igb_ring *rx_ring,
struct igb_rx_buffer *old_buff)
{
struct igb_rx_buffer *new_buff;
u16 nta = rx_ring->next_to_alloc;
new_buff = &rx_ring->rx_buffer_info[nta];
/* update, and store next to alloc */
nta++;
rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0;
/* transfer page from old buffer to new buffer */
memcpy(new_buff, old_buff, sizeof(struct igb_rx_buffer));
/* sync the buffer for use by the device */
dma_sync_single_range_for_device(rx_ring->dev, old_buff->dma,
old_buff->page_offset,
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
IGB_RX_BUFSZ,
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
DMA_FROM_DEVICE);
}
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
static bool igb_can_reuse_rx_page(struct igb_rx_buffer *rx_buffer,
struct page *page,
unsigned int truesize)
{
/* avoid re-using remote pages */
if (unlikely(page_to_nid(page) != numa_node_id()))
return false;
#if (PAGE_SIZE < 8192)
/* if we are only owner of page we can reuse it */
if (unlikely(page_count(page) != 1))
return false;
/* flip page offset to other buffer */
rx_buffer->page_offset ^= IGB_RX_BUFSZ;
/* since we are the only owner of the page and we need to
* increment it, just set the value to 2 in order to avoid
* an unnecessary locked operation
*/
atomic_set(&page->_count, 2);
#else
/* move offset up to the next cache line */
rx_buffer->page_offset += truesize;
if (rx_buffer->page_offset > (PAGE_SIZE - IGB_RX_BUFSZ))
return false;
/* bump ref count on page before it is given to the stack */
get_page(page);
#endif
return true;
}
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/**
* igb_add_rx_frag - Add contents of Rx buffer to sk_buff
* @rx_ring: rx descriptor ring to transact packets on
* @rx_buffer: buffer containing page to add
* @rx_desc: descriptor containing length of buffer written by hardware
* @skb: sk_buff to place the data into
*
* This function will add the data contained in rx_buffer->page to the skb.
* This is done either through a direct copy if the data in the buffer is
* less than the skb header size, otherwise it will just attach the page as
* a frag to the skb.
*
* The function will then update the page offset if necessary and return
* true if the buffer can be reused by the adapter.
**/
static bool igb_add_rx_frag(struct igb_ring *rx_ring,
struct igb_rx_buffer *rx_buffer,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
{
struct page *page = rx_buffer->page;
unsigned int size = le16_to_cpu(rx_desc->wb.upper.length);
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
#if (PAGE_SIZE < 8192)
unsigned int truesize = IGB_RX_BUFSZ;
#else
unsigned int truesize = ALIGN(size, L1_CACHE_BYTES);
#endif
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
if ((size <= IGB_RX_HDR_LEN) && !skb_is_nonlinear(skb)) {
unsigned char *va = page_address(page) + rx_buffer->page_offset;
if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb);
va += IGB_TS_HDR_LEN;
size -= IGB_TS_HDR_LEN;
}
memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long)));
/* we can reuse buffer as-is, just make sure it is local */
if (likely(page_to_nid(page) == numa_node_id()))
return true;
/* this page cannot be reused so discard it */
put_page(page);
return false;
}
skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
rx_buffer->page_offset, size, truesize);
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
return igb_can_reuse_rx_page(rx_buffer, page, truesize);
}
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
static struct sk_buff *igb_build_rx_buffer(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc)
{
struct igb_rx_buffer *rx_buffer;
struct sk_buff *skb;
struct page *page;
void *page_addr;
unsigned int size = le16_to_cpu(rx_desc->wb.upper.length);
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
#if (PAGE_SIZE < 8192)
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
unsigned int truesize = IGB_RX_BUFSZ;
#else
unsigned int truesize = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) +
SKB_DATA_ALIGN(NET_SKB_PAD +
NET_IP_ALIGN +
size);
#endif
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
/* If we spanned a buffer we have a huge mess so test for it */
BUG_ON(unlikely(!igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP)));
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
/* Guarantee this function can be used by verifying buffer sizes */
BUILD_BUG_ON(SKB_WITH_OVERHEAD(IGB_RX_BUFSZ) < (NET_SKB_PAD +
NET_IP_ALIGN +
IGB_TS_HDR_LEN +
ETH_FRAME_LEN +
ETH_FCS_LEN));
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean];
page = rx_buffer->page;
prefetchw(page);
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
page_addr = page_address(page) + rx_buffer->page_offset;
/* prefetch first cache line of first page */
prefetch(page_addr + NET_SKB_PAD + NET_IP_ALIGN);
#if L1_CACHE_BYTES < 128
prefetch(page_addr + L1_CACHE_BYTES + NET_SKB_PAD + NET_IP_ALIGN);
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
#endif
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
/* build an skb to around the page buffer */
skb = build_skb(page_addr, truesize);
if (unlikely(!skb)) {
rx_ring->rx_stats.alloc_failed++;
return NULL;
}
/* we are reusing so sync this buffer for CPU use */
dma_sync_single_range_for_cpu(rx_ring->dev,
rx_buffer->dma,
rx_buffer->page_offset,
IGB_RX_BUFSZ,
DMA_FROM_DEVICE);
/* update pointers within the skb to store the data */
skb_reserve(skb, NET_IP_ALIGN + NET_SKB_PAD);
__skb_put(skb, size);
/* pull timestamp out of packet data */
if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
igb_ptp_rx_pktstamp(rx_ring->q_vector, skb->data, skb);
__skb_pull(skb, IGB_TS_HDR_LEN);
}
if (igb_can_reuse_rx_page(rx_buffer, page, truesize)) {
/* hand second half of page back to the ring */
igb_reuse_rx_page(rx_ring, rx_buffer);
} else {
/* we are not reusing the buffer so unmap it */
dma_unmap_page(rx_ring->dev, rx_buffer->dma,
PAGE_SIZE, DMA_FROM_DEVICE);
}
/* clear contents of buffer_info */
rx_buffer->dma = 0;
rx_buffer->page = NULL;
return skb;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
}
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
static struct sk_buff *igb_fetch_rx_buffer(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
{
struct igb_rx_buffer *rx_buffer;
struct page *page;
rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean];
page = rx_buffer->page;
prefetchw(page);
if (likely(!skb)) {
void *page_addr = page_address(page) +
rx_buffer->page_offset;
/* prefetch first cache line of first page */
prefetch(page_addr);
#if L1_CACHE_BYTES < 128
prefetch(page_addr + L1_CACHE_BYTES);
#endif
/* allocate a skb to store the frags */
skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
IGB_RX_HDR_LEN);
if (unlikely(!skb)) {
rx_ring->rx_stats.alloc_failed++;
return NULL;
}
/*
* we will be copying header into skb->data in
* pskb_may_pull so it is in our interest to prefetch
* it now to avoid a possible cache miss
*/
prefetchw(skb->data);
}
/* we are reusing so sync this buffer for CPU use */
dma_sync_single_range_for_cpu(rx_ring->dev,
rx_buffer->dma,
rx_buffer->page_offset,
igb: Lock buffer size at 2K even on systems with larger pages This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:12 +00:00
IGB_RX_BUFSZ,
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
DMA_FROM_DEVICE);
/* pull page into skb */
if (igb_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) {
/* hand second half of page back to the ring */
igb_reuse_rx_page(rx_ring, rx_buffer);
} else {
/* we are not reusing the buffer so unmap it */
dma_unmap_page(rx_ring->dev, rx_buffer->dma,
PAGE_SIZE, DMA_FROM_DEVICE);
}
/* clear contents of rx_buffer */
rx_buffer->page = NULL;
return skb;
}
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
static inline void igb_rx_checksum(struct igb_ring *ring,
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
drivers/net: avoid some skb->ip_summed initializations fresh skbs have ip_summed set to CHECKSUM_NONE (0) We can avoid setting again skb->ip_summed to CHECKSUM_NONE in drivers. Introduce skb_checksum_none_assert() helper so that we keep this assertion documented in driver sources. Change most occurrences of : skb->ip_summed = CHECKSUM_NONE; by : skb_checksum_none_assert(skb); Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-02 13:07:41 -07:00
skb_checksum_none_assert(skb);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: retire the RX_CSUM flag and use the netdev flag instead Since the netdev now has its' own checksum flag to indicate if Rx checksum is enabled we might as well use that instead of using the ring flag. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:57 +00:00
/* Ignore Checksum bit is set */
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
if (igb_test_staterr(rx_desc, E1000_RXD_STAT_IXSM))
igb: retire the RX_CSUM flag and use the netdev flag instead Since the netdev now has its' own checksum flag to indicate if Rx checksum is enabled we might as well use that instead of using the ring flag. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:57 +00:00
return;
/* Rx checksum disabled via ethtool */
if (!(ring->netdev->features & NETIF_F_RXCSUM))
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return;
igb: add a flags value to the ring This patch adds a flags value to the ring that cleans up some of the last remaining items from the ring in order to help seperate it from the adapter struct. By implementing these flags it becomes possible for different rings to support different functions such as rx checksumming. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:52:46 +00:00
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* TCP/UDP checksum error bit is set */
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
if (igb_test_staterr(rx_desc,
E1000_RXDEXT_STATERR_TCPE |
E1000_RXDEXT_STATERR_IPE)) {
igb: Enable SCTP checksum offloading Originally from: Vlad Yasevich <vladislav.yasevich@hp.com> This patch, both the driver portion and the sctp code was modified by Jesse Brandeburg and is Copyright(c) 2009 Intel Corporation. Thanks go to Vlad for starting this work. Intel 82576 chipset supports SCTP checksum offloading. This patch enables this functionality in the driver. A new NETIF feature is introduced for SCTP checksum offload. If the driver supports CRC32c checksum, it can set this feature flag. The hardware can offload both transmit and receive. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 22:36:13 +00:00
/*
* work around errata with sctp packets where the TCPE aka
* L4E bit is set incorrectly on 64 byte (60 byte w/o crc)
* packets, (aka let the stack check the crc32c)
*/
igb: Consolidate all of the ring feature flags into a single value This change moves all of the ring flags into a single value. The advantage to this is that there is one central area for all of these flags and they can all make use of the set/test bit operations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:36 +00:00
if (!((skb->len == 60) &&
test_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags))) {
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
u64_stats_update_begin(&ring->rx_syncp);
igb: move alloc_failed and csum_err stats into per rx-ring stat The allocation failed and checksum error stats are currently kept as a global stat. If we end up allocating the queues to multiple netdevs then the global counter doesn't make much sense. For this reason I felt it necessary to move the alloc_rx_buff_failed stat into the rx_stats portion of the rx_ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:52:27 +00:00
ring->rx_stats.csum_err++;
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
u64_stats_update_end(&ring->rx_syncp);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* let the stack verify checksum errors */
return;
}
/* It must be a TCP or UDP packet with a valid checksum */
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
if (igb_test_staterr(rx_desc, E1000_RXD_STAT_TCPCS |
E1000_RXD_STAT_UDPCS))
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
skb->ip_summed = CHECKSUM_UNNECESSARY;
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
dev_dbg(ring->dev, "cksum success: bits %08X\n",
le32_to_cpu(rx_desc->wb.upper.status_error));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add support for NETIF_F_RXHASH This patch adds support for Rx hashing. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:29 +00:00
static inline void igb_rx_hash(struct igb_ring *ring,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
{
if (ring->netdev->features & NETIF_F_RXHASH)
skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);
}
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
/**
* igb_is_non_eop - process handling of non-EOP buffers
* @rx_ring: Rx ring being processed
* @rx_desc: Rx descriptor for current buffer
* @skb: current socket buffer containing buffer in progress
*
* This function updates next to clean. If the buffer is an EOP buffer
* this function exits returning false, otherwise it will place the
* sk_buff in the next buffer to be chained and return true indicating
* that this is in fact a non-EOP buffer.
**/
static bool igb_is_non_eop(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc)
{
u32 ntc = rx_ring->next_to_clean + 1;
/* fetch, update, and store next to clean */
ntc = (ntc < rx_ring->count) ? ntc : 0;
rx_ring->next_to_clean = ntc;
prefetch(IGB_RX_DESC(rx_ring, ntc));
if (likely(igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP)))
return false;
return true;
}
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
/**
* igb_get_headlen - determine size of header for LRO/GRO
* @data: pointer to the start of the headers
* @max_len: total length of section to find headers in
*
* This function is meant to determine the length of headers that will
* be recognized by hardware for LRO, and GRO offloads. The main
* motivation of doing this is to only perform one pull for IPv4 TCP
* packets so that we can do basic things like calculating the gso_size
* based on the average data per packet.
**/
static unsigned int igb_get_headlen(unsigned char *data,
unsigned int max_len)
{
union {
unsigned char *network;
/* l2 headers */
struct ethhdr *eth;
struct vlan_hdr *vlan;
/* l3 headers */
struct iphdr *ipv4;
struct ipv6hdr *ipv6;
} hdr;
__be16 protocol;
u8 nexthdr = 0; /* default to not TCP */
u8 hlen;
/* this should never happen, but better safe than sorry */
if (max_len < ETH_HLEN)
return max_len;
/* initialize network frame pointer */
hdr.network = data;
/* set first protocol and move network header forward */
protocol = hdr.eth->h_proto;
hdr.network += ETH_HLEN;
/* handle any vlan tag if present */
if (protocol == __constant_htons(ETH_P_8021Q)) {
if ((hdr.network - data) > (max_len - VLAN_HLEN))
return max_len;
protocol = hdr.vlan->h_vlan_encapsulated_proto;
hdr.network += VLAN_HLEN;
}
/* handle L3 protocols */
if (protocol == __constant_htons(ETH_P_IP)) {
if ((hdr.network - data) > (max_len - sizeof(struct iphdr)))
return max_len;
/* access ihl as a u8 to avoid unaligned access on ia64 */
hlen = (hdr.network[0] & 0x0F) << 2;
/* verify hlen meets minimum size requirements */
if (hlen < sizeof(struct iphdr))
return hdr.network - data;
igb: Do not parse past IP header on fragments beyond the first This change makes it so that only the first fragment in a series of fragments will have the L4 header pulled. Previously we were always pulling the L4 header as well and in the case of UDP this can harm performance since only the first fragment will have the header, the rest just contain data which should be left in the paged portion of the packet. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-13 01:13:38 +00:00
/* record next protocol if header is present */
if (!hdr.ipv4->frag_off)
nexthdr = hdr.ipv4->protocol;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
} else if (protocol == __constant_htons(ETH_P_IPV6)) {
if ((hdr.network - data) > (max_len - sizeof(struct ipv6hdr)))
return max_len;
/* record next protocol */
nexthdr = hdr.ipv6->nexthdr;
igb: Do not parse past IP header on fragments beyond the first This change makes it so that only the first fragment in a series of fragments will have the L4 header pulled. Previously we were always pulling the L4 header as well and in the case of UDP this can harm performance since only the first fragment will have the header, the rest just contain data which should be left in the paged portion of the packet. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-13 01:13:38 +00:00
hlen = sizeof(struct ipv6hdr);
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
} else {
return hdr.network - data;
}
igb: Do not parse past IP header on fragments beyond the first This change makes it so that only the first fragment in a series of fragments will have the L4 header pulled. Previously we were always pulling the L4 header as well and in the case of UDP this can harm performance since only the first fragment will have the header, the rest just contain data which should be left in the paged portion of the packet. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-13 01:13:38 +00:00
/* relocate pointer to start of L4 header */
hdr.network += hlen;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
/* finally sort out TCP */
if (nexthdr == IPPROTO_TCP) {
if ((hdr.network - data) > (max_len - sizeof(struct tcphdr)))
return max_len;
/* access doff as a u8 to avoid unaligned access on ia64 */
hlen = (hdr.network[12] & 0xF0) >> 2;
/* verify hlen meets minimum size requirements */
if (hlen < sizeof(struct tcphdr))
return hdr.network - data;
hdr.network += hlen;
} else if (nexthdr == IPPROTO_UDP) {
if ((hdr.network - data) > (max_len - sizeof(struct udphdr)))
return max_len;
hdr.network += sizeof(struct udphdr);
}
/*
* If everything has gone correctly hdr.network should be the
* data section of the packet and will be the end of the header.
* If not then it probably represents the end of the last recognized
* header.
*/
if ((hdr.network - data) < max_len)
return hdr.network - data;
else
return max_len;
}
/**
* igb_pull_tail - igb specific version of skb_pull_tail
* @rx_ring: rx descriptor ring packet is being transacted on
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
* @rx_desc: pointer to the EOP Rx descriptor
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
* @skb: pointer to current skb being adjusted
*
* This function is an igb specific version of __pskb_pull_tail. The
* main difference between this version and the original function is that
* this function can make several assumptions about the state of things
* that allow for significant optimizations versus the standard function.
* As a result we can do things like drop a frag and maintain an accurate
* truesize for the skb.
*/
static void igb_pull_tail(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
igb: use buffer_info->dma instead of shinfo->nr_frags to determine unmap This change makes it so that we use buffer_info->dma instead of shinfo->nr_frags to determine if we need to unmap a received skb. By doing this we can avoid a cache miss on small packets since the buffer_info structure should already be prefetched. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:10:06 +00:00
{
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
unsigned char *va;
unsigned int pull_len;
/*
* it is valid to use page_address instead of kmap since we are
* working with pages allocated out of the lomem pool per
* alloc_page(GFP_ATOMIC)
igb: use buffer_info->dma instead of shinfo->nr_frags to determine unmap This change makes it so that we use buffer_info->dma instead of shinfo->nr_frags to determine if we need to unmap a received skb. By doing this we can avoid a cache miss on small packets since the buffer_info structure should already be prefetched. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:10:06 +00:00
*/
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
va = skb_frag_address(frag);
if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
/* retrieve timestamp from buffer */
igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb);
/* update pointers to remove timestamp header */
skb_frag_size_sub(frag, IGB_TS_HDR_LEN);
frag->page_offset += IGB_TS_HDR_LEN;
skb->data_len -= IGB_TS_HDR_LEN;
skb->len -= IGB_TS_HDR_LEN;
/* move va to start of packet data */
va += IGB_TS_HDR_LEN;
}
/*
* we need the header to contain the greater of either ETH_HLEN or
* 60 bytes if the skb->len is less than 60 for skb_pad.
*/
pull_len = igb_get_headlen(va, IGB_RX_HDR_LEN);
/* align pull length to size of long to optimize memcpy performance */
skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));
/* update all of the pointers */
skb_frag_size_sub(frag, pull_len);
frag->page_offset += pull_len;
skb->data_len -= pull_len;
skb->tail += pull_len;
}
/**
* igb_cleanup_headers - Correct corrupted or empty headers
* @rx_ring: rx descriptor ring packet is being transacted on
* @rx_desc: pointer to the EOP Rx descriptor
* @skb: pointer to current skb being fixed
*
* Address the case where we are pulling data in on pages only
* and as such no data is present in the skb header.
*
* In addition if skb is not at least 60 bytes we need to pad it so that
* it is large enough to qualify as a valid Ethernet frame.
*
* Returns true if an error was encountered and skb was freed.
**/
static bool igb_cleanup_headers(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
{
if (unlikely((igb_test_staterr(rx_desc,
E1000_RXDEXT_ERR_FRAME_ERR_MASK)))) {
struct net_device *netdev = rx_ring->netdev;
if (!(netdev->features & NETIF_F_RXALL)) {
dev_kfree_skb_any(skb);
return true;
}
}
/* place header in linear portion of buffer */
if (skb_is_nonlinear(skb))
igb_pull_tail(rx_ring, rx_desc, skb);
/* if skb_pad returns an error the skb was freed */
if (unlikely(skb->len < 60)) {
int pad_len = 60 - skb->len;
if (skb_pad(skb, pad_len))
return true;
__skb_put(skb, pad_len);
}
return false;
igb: use buffer_info->dma instead of shinfo->nr_frags to determine unmap This change makes it so that we use buffer_info->dma instead of shinfo->nr_frags to determine if we need to unmap a received skb. By doing this we can avoid a cache miss on small packets since the buffer_info structure should already be prefetched. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:10:06 +00:00
}
igb: Combine post-processing of skb into a single function This change is meant to just clean-up a number of function calls that were made at the end of the Rx clean-up path by combining them into a single function call. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:57 +00:00
/**
* igb_process_skb_fields - Populate skb header fields from Rx descriptor
* @rx_ring: rx descriptor ring packet is being transacted on
* @rx_desc: pointer to the EOP Rx descriptor
* @skb: pointer to current skb being populated
*
* This function checks the ring, descriptor, and packet information in
* order to populate the hash, checksum, VLAN, timestamp, protocol, and
* other fields within the skb.
**/
static void igb_process_skb_fields(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
{
struct net_device *dev = rx_ring->netdev;
igb_rx_hash(rx_ring, rx_desc, skb);
igb_rx_checksum(rx_ring, rx_desc, skb);
igb_ptp_rx_hwtstamp(rx_ring->q_vector, rx_desc, skb);
if ((dev->features & NETIF_F_HW_VLAN_RX) &&
igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) {
u16 vid;
if (igb_test_staterr(rx_desc, E1000_RXDEXT_STATERR_LB) &&
test_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &rx_ring->flags))
vid = be16_to_cpu(rx_desc->wb.upper.vlan);
else
vid = le16_to_cpu(rx_desc->wb.upper.vlan);
__vlan_hwaccel_put_tag(skb, vid);
}
skb_record_rx_queue(skb, rx_ring->queue_index);
skb->protocol = eth_type_trans(skb, rx_ring->netdev);
}
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
struct igb_ring *rx_ring = q_vector->rx.ring;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
struct sk_buff *skb = rx_ring->skb;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
unsigned int total_bytes = 0, total_packets = 0;
igb: Refactor clean_rx_irq to reduce overhead and improve performance This change is meant to be a general cleanup and performance improvement for clean_rx_irq. The previous patch should have updated the allocation so that the rings can be treated as read-only within the clean_rx_irq function. In addition I am re-ordering the operations such that several goals are accomplished including reducing the overhead for packet accounting, reducing the number of items on the stack, and improving overall performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:54 +00:00
u16 cleaned_count = igb_desc_unused(rx_ring);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
do {
union e1000_adv_rx_desc *rx_desc;
igb: add page recycling support This patch adds support for page recycling by splitting the page into two usable portions and tracking the reference count. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:11:40 -07:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
/* return some buffers to hardware, one at a time is too slow */
if (cleaned_count >= IGB_RX_BUFFER_WRITE) {
igb_alloc_rx_buffers(rx_ring, cleaned_count);
cleaned_count = 0;
}
igb: add page recycling support This patch adds support for page recycling by splitting the page into two usable portions and tracking the reference count. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:11:40 -07:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
rx_desc = IGB_RX_DESC(rx_ring, rx_ring->next_to_clean);
igb: Refactor clean_rx_irq to reduce overhead and improve performance This change is meant to be a general cleanup and performance improvement for clean_rx_irq. The previous patch should have updated the allocation so that the rings can be treated as read-only within the clean_rx_irq function. In addition I am re-ordering the operations such that several goals are accomplished including reducing the overhead for packet accounting, reducing the number of items on the stack, and improving overall performance. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:54 +00:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
if (!igb_test_staterr(rx_desc, E1000_RXD_STAT_DD))
break;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
/* This memory barrier is needed to keep us from reading
* any other fields out of the rx_desc until we know the
* RXD_STAT_DD bit is set
*/
rmb();
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
/* retrieve a buffer from the ring */
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
if (ring_uses_build_skb(rx_ring))
skb = igb_build_rx_buffer(rx_ring, rx_desc);
else
skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
/* exit if we failed to retrieve a buffer */
if (!skb)
break;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
cleaned_count++;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
/* fetch next buffer in frame if non-eop */
if (igb_is_non_eop(rx_ring, rx_desc))
continue;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
/* verify the packet layout is correct */
if (igb_cleanup_headers(rx_ring, rx_desc, skb)) {
skb = NULL;
continue;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Combine post-processing of skb into a single function This change is meant to just clean-up a number of function calls that were made at the end of the Rx clean-up path by combining them into a single function call. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:57 +00:00
/* probably a little skewed due to removing CRC */
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
total_bytes += skb->len;
igb: Combine post-processing of skb into a single function This change is meant to just clean-up a number of function calls that were made at the end of the Rx clean-up path by combining them into a single function call. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:57 +00:00
/* populate checksum, timestamp, VLAN, and protocol */
igb_process_skb_fields(rx_ring, rx_desc, skb);
igb: leave staterr in place and instead us a helper function to check bits Instead of doing a byte swap on the staterr bits in the Rx descriptor we can save ourselves a bit of space and some CPU time by instead just testing for the various bits out of the Rx descriptor directly. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:03 +00:00
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
napi_gro_receive(&q_vector->napi, skb);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
/* reset skb pointer */
skb = NULL;
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
/* update budget accounting */
total_packets++;
} while (likely(total_packets < budget));
igb: add page recycling support This patch adds support for page recycling by splitting the page into two usable portions and tracking the reference count. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:11:40 -07:00
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
/* place incomplete frames back on ring for completion */
rx_ring->skb = skb;
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
u64_stats_update_begin(&rx_ring->rx_syncp);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rx_ring->rx_stats.packets += total_packets;
rx_ring->rx_stats.bytes += total_bytes;
igb: fix stats handling There are currently some problems with igb. - On 32bit arches, maintaining 64bit counters without proper synchronization between writers and readers. - Stats updated every two seconds, as reported by Jesper. (Jesper provided a patch for this) - Potential problem between worker thread and ethtool -S This patch uses u64_stats_sync, and convert everything to be 64bit safe, SMP safe, even on 32bit arches. It integrates Jesper idea of providing accurate stats at the time user reads them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 17:27:10 +00:00
u64_stats_update_end(&rx_ring->rx_syncp);
igb: Move ITR related data into work container within the q_vector This change moves information related to interrupt throttle rate configuration into a separate q_vector sub-structure called a work container. A similar change has already been made for ixgbe and this work is based off of that. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:45:47 +00:00
q_vector->rx.total_packets += total_packets;
q_vector->rx.total_bytes += total_bytes;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
if (cleaned_count)
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
igb_alloc_rx_buffers(rx_ring, cleaned_count);
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
igb: Move rx_buffer related code in Rx cleanup path into separate function In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:07 +00:00
return (total_packets < budget);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
static bool igb_alloc_mapped_page(struct igb_ring *rx_ring,
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_rx_buffer *bi)
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
{
struct page *page = bi->page;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
dma_addr_t dma;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/* since we are recycling buffers we should seldom need to alloc */
if (likely(page))
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
return true;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/* alloc new page for storage */
page = __skb_alloc_page(GFP_ATOMIC | __GFP_COLD, NULL);
if (unlikely(!page)) {
rx_ring->rx_stats.alloc_failed++;
return false;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
}
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/* map page for use */
dma = dma_map_page(rx_ring->dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE);
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/*
* if mapping failed free memory back to system since
* there isn't much point in holding memory we can't use
*/
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
if (dma_mapping_error(rx_ring->dev, dma)) {
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
__free_page(page);
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
rx_ring->rx_stats.alloc_failed++;
return false;
}
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
bi->dma = dma;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
bi->page = page;
bi->page_offset = 0;
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
return true;
}
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
static inline unsigned int igb_rx_offset(struct igb_ring *rx_ring)
{
if (ring_uses_build_skb(rx_ring))
return NET_SKB_PAD + NET_IP_ALIGN;
else
return 0;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/**
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
* igb_alloc_rx_buffers - Replace used receive buffers; packet split
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* @adapter: address of board private structure
**/
igb: drop the "adv" off function names relating to descriptors Many of the function names in the hot path are carrying an extra "_adv" suffix on the end of them to represent the fact that they are using advanced descriptors instead of legacy descriptors. However since all igb uses are advanced descriptors adding the extra suffix doesn't really add any additional data. Since this is the case it is easiest to just drop the suffix and save us from having to store the extra characters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:59 +00:00
void igb_alloc_rx_buffers(struct igb_ring *rx_ring, u16 cleaned_count)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
union e1000_adv_rx_desc *rx_desc;
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
struct igb_rx_buffer *bi;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
u16 i = rx_ring->next_to_use;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/* nothing to do */
if (!cleaned_count)
return;
igb: Replace E1000_XX_DESC_ADV with IGB_XX_DESC Since igb only uses advanced descriptors we might as well just use an IGB specific define and drop the _ADV suffix for the descriptor declarations. In addition this can be further reduced by assuming that it will be working on pointers since that is normally how the Tx descriptors are handled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:05 +00:00
rx_desc = IGB_RX_DESC(rx_ring, i);
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
bi = &rx_ring->rx_buffer_info[i];
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
i -= rx_ring->count;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
do {
igb: Do not use header split, instead receive all frames into a single buffer This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:30:52 +00:00
if (!igb_alloc_mapped_page(rx_ring, bi))
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
break;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/*
* Refresh the desc even if buffer_addrs didn't change
* because each write-back erases this info.
*/
igb: Support using build_skb in the case that jumbo frames are disabled This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-02 05:07:11 +00:00
rx_desc->read.pkt_addr = cpu_to_le64(bi->dma +
bi->page_offset +
igb_rx_offset(rx_ring));
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
rx_desc++;
bi++;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
i++;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
if (unlikely(!i)) {
igb: Replace E1000_XX_DESC_ADV with IGB_XX_DESC Since igb only uses advanced descriptors we might as well just use an IGB specific define and drop the _ADV suffix for the descriptor declarations. In addition this can be further reduced by assuming that it will be working on pointers since that is normally how the Tx descriptors are handled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:05 +00:00
rx_desc = IGB_RX_DESC(rx_ring, 0);
igb: split buffer_info into tx_buffer_info and rx_buffer_info In order to be able to improve the performance of the TX path it has been necessary to add addition info to the tx_buffer_info structure. However a side effect is that the structure has gotten larger and this in turn has also increased the size of the RX buffer info structure. In order to avoid this in the future I am splitting the single buffer_info structure into two separate ones and instead I will join them by making the buffer_info pointer in the ring a union of the two. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:44:22 +00:00
bi = rx_ring->rx_buffer_info;
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
i -= rx_ring->count;
}
/* clear the hdr_addr for the next_to_use descriptor */
rx_desc->read.hdr_addr = 0;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
cleaned_count--;
} while (cleaned_count);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: streamline Rx buffer allocation and cleanup This change is meant to streamline the Rx buffer allocation and cleanup. This is accomplished by reducing the number of writes by only having the Rx descriptor ring written by software during allocation, and it will only be read during cleanup. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:43:43 +00:00
i += rx_ring->count;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (rx_ring->next_to_use != i) {
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/* record the next descriptor to use */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rx_ring->next_to_use = i;
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
/* update next to alloc since we have filled the ring */
rx_ring->next_to_alloc = i;
/*
* Force memory writes to complete before letting h/w
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
igb: Map entire page and sync half instead of mapping and unmapping half pages This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:02 +00:00
* such as IA-64).
*/
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wmb();
igb: change the head and tail offsets into pointers Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:51:27 +00:00
writel(i, rx_ring->tail);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
}
/**
* igb_mii_ioctl -
* @netdev:
* @ifreq:
* @cmd:
**/
static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct mii_ioctl_data *data = if_mii(ifr);
if (adapter->hw.phy.media_type != e1000_media_type_copper)
return -EOPNOTSUPP;
switch (cmd) {
case SIOCGMIIPHY:
data->phy_id = adapter->hw.phy.addr;
break;
case SIOCGMIIREG:
igb: do not use phy ops in ethtool test cleanup for non-copper parts Currently the igb driver is experiencing a panic due to a null function pointer being used during the cleanup of the ethtool looback test on fiber/serdes parts. This patch prevents that and adds a check prior to calling any phy function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21 21:30:24 -08:00
if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F,
&data->val_out))
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return -EIO;
break;
case SIOCSMIIREG:
default:
return -EOPNOTSUPP;
}
return 0;
}
/**
* igb_ioctl -
* @netdev:
* @ifreq:
* @cmd:
**/
static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
switch (cmd) {
case SIOCGMIIPHY:
case SIOCGMIIREG:
case SIOCSMIIREG:
return igb_mii_ioctl(netdev, ifr, cmd);
igb: stub support for SIOCSHWTSTAMP Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-12 05:03:42 +00:00
case SIOCSHWTSTAMP:
igb: Update PTP function names/variables and locations. Where possible, move PTP-related functions into igb_ptp.c and update the names of functions and variables to match the established coding style in the files and specify that they are PTP-specific. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-10 05:40:44 +00:00
return igb_ptp_hwtstamp_ioctl(netdev, ifr, cmd);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
default:
return -EOPNOTSUPP;
}
}
igb: add completion timeout workaround for 82575/82576 The 82575 and 82576 hardware can both experience data corruption issues if a pci-e completion arrives after the timeout value. In order to avoid this we need to increase the timeout value while pci-e master is disabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:35 +00:00
s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
{
struct igb_adapter *adapter = hw->back;
igb: Use PCI Express Capability accessors Use PCI Express Capability access functions to simplify igb driver. [bhelgaas: split e1000e and igb into separate patches] Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-20 13:32:20 -06:00
if (pcie_capability_read_word(adapter->pdev, reg, value))
igb: add completion timeout workaround for 82575/82576 The 82575 and 82576 hardware can both experience data corruption issues if a pci-e completion arrives after the timeout value. In order to avoid this we need to increase the timeout value while pci-e master is disabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:35 +00:00
return -E1000_ERR_CONFIG;
return 0;
}
s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
{
struct igb_adapter *adapter = hw->back;
igb: Use PCI Express Capability accessors Use PCI Express Capability access functions to simplify igb driver. [bhelgaas: split e1000e and igb into separate patches] Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-08-20 13:32:20 -06:00
if (pcie_capability_write_word(adapter->pdev, reg, *value))
igb: add completion timeout workaround for 82575/82576 The 82575 and 82576 hardware can both experience data corruption issues if a pci-e completion arrives after the timeout value. In order to avoid this we need to increase the timeout value while pci-e master is disabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:08:35 +00:00
return -E1000_ERR_CONFIG;
return 0;
}
net: introduce and use netdev_features_t for device features sets v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 15:29:55 +00:00
static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
u32 ctrl, rctl;
igb: fix recent VLAN changes that would leave VLANs disabled after reset This patch cleans up several issues with VLANs on igb after the recent changes that were meant to leave the VLANs enabled/disable via the netdev->features flags. Specifically the Rx VLAN settings were being dropped after reset due to the fact that they were not being restored correctly. In addition I removed the IRQ disable/enable since those were in place to protect the setting of vlgrp. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:08 +00:00
bool enable = !!(features & NETIF_F_HW_VLAN_RX);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: fix recent VLAN changes that would leave VLANs disabled after reset This patch cleans up several issues with VLANs on igb after the recent changes that were meant to leave the VLANs enabled/disable via the netdev->features flags. Specifically the Rx VLAN settings were being dropped after reset due to the fact that they were not being restored correctly. In addition I removed the IRQ disable/enable since those were in place to protect the setting of vlgrp. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:08 +00:00
if (enable) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* enable VLAN tag insert/strip */
ctrl = rd32(E1000_CTRL);
ctrl |= E1000_CTRL_VME;
wr32(E1000_CTRL, ctrl);
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* Disable CFI check */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
rctl = rd32(E1000_RCTL);
rctl &= ~E1000_RCTL_CFIEN;
wr32(E1000_RCTL, rctl);
} else {
/* disable VLAN tag insert/strip */
ctrl = rd32(E1000_CTRL);
ctrl &= ~E1000_CTRL_VME;
wr32(E1000_CTRL, ctrl);
}
igb: add pf side of VMDq support Add the pf portion of vmdq support. This provides enough support so that VMDq is enabled, and the pf is functional without enabling vfs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:39:44 -08:00
igb_rlpml_set(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
net: make vlan ndo_vlan_rx_[add/kill]_vid return error value Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08 19:52:37 -05:00
static int igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
int pf_id = adapter->vfs_allocated_count;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* attempt to add filter to vlvf array */
igb_vlvf_set(adapter, vid, true, pf_id);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* add the filter since PF can receive vlans w/o entry in vlvf */
igb_vfta_set(hw, vid, true);
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
set_bit(vid, adapter->active_vlans);
net: make vlan ndo_vlan_rx_[add/kill]_vid return error value Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08 19:52:37 -05:00
return 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
net: make vlan ndo_vlan_rx_[add/kill]_vid return error value Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08 19:52:37 -05:00
static int igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
int pf_id = adapter->vfs_allocated_count;
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
s32 err;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* remove vlan from VLVF table array */
err = igb_vlvf_set(adapter, vid, false, pf_id);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: rework handling of the vfta and vlvf registers in relation to mng_vlan This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:47:35 +00:00
/* if vid was not present in VLVF just remove it from table */
if (err)
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb_vfta_set(hw, vid, false);
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
clear_bit(vid, adapter->active_vlans);
net: make vlan ndo_vlan_rx_[add/kill]_vid return error value Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08 19:52:37 -05:00
return 0;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
static void igb_restore_vlan(struct igb_adapter *adapter)
{
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
u16 vid;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: fix recent VLAN changes that would leave VLANs disabled after reset This patch cleans up several issues with VLANs on igb after the recent changes that were meant to leave the VLANs enabled/disable via the netdev->features flags. Specifically the Rx VLAN settings were being dropped after reset due to the fact that they were not being restored correctly. In addition I removed the IRQ disable/enable since those were in place to protect the setting of vlgrp. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:08 +00:00
igb_vlan_mode(adapter->netdev, adapter->netdev->features);
igb: do vlan cleanup - unify vlan and nonvlan rx path - kill adapter->vlgrp and igb_vlan_rx_register - allow to turn on/off rx/tx vlan accel via ethtool (set_features) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 03:27:27 +00:00
for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
igb_vlan_rx_add_vid(adapter->netdev, vid);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
net/igb/e1000/e1000e: more robust ethtool duplex/speed configuration This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27 18:32:43 +00:00
int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add pci_dev in few spots to clean up use of dev_err/info/warn This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:55 +00:00
struct pci_dev *pdev = adapter->pdev;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct e1000_mac_info *mac = &adapter->hw.mac;
mac->autoneg = 0;
net/igb/e1000/e1000e: more robust ethtool duplex/speed configuration This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27 18:32:43 +00:00
/* Make sure dplx is at most 1 bit and lsb of speed is not set
* for the switch() below to work */
if ((spd & 1) || (dplx & ~1))
goto err_inval;
igb: add check for fiber/serdes devices to igb_set_spd_dplx; Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-12 22:27:02 +00:00
/* Fiber NIC's only allow 1000 Gbps Full duplex */
if ((adapter->hw.phy.media_type == e1000_media_type_internal_serdes) &&
net/igb/e1000/e1000e: more robust ethtool duplex/speed configuration This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27 18:32:43 +00:00
spd != SPEED_1000 &&
dplx != DUPLEX_FULL)
goto err_inval;
igb: add check for fiber/serdes devices to igb_set_spd_dplx; Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-12 22:27:02 +00:00
net/igb/e1000/e1000e: more robust ethtool duplex/speed configuration This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27 18:32:43 +00:00
switch (spd + dplx) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
case SPEED_10 + DUPLEX_HALF:
mac->forced_speed_duplex = ADVERTISE_10_HALF;
break;
case SPEED_10 + DUPLEX_FULL:
mac->forced_speed_duplex = ADVERTISE_10_FULL;
break;
case SPEED_100 + DUPLEX_HALF:
mac->forced_speed_duplex = ADVERTISE_100_HALF;
break;
case SPEED_100 + DUPLEX_FULL:
mac->forced_speed_duplex = ADVERTISE_100_FULL;
break;
case SPEED_1000 + DUPLEX_FULL:
mac->autoneg = 1;
adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
break;
case SPEED_1000 + DUPLEX_HALF: /* not supported */
default:
net/igb/e1000/e1000e: more robust ethtool duplex/speed configuration This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27 18:32:43 +00:00
goto err_inval;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: update to allow reading/setting MDI state This is the implementation for igb to allow forcing MDI state via ethtool, allowing users to work around some improperly behaving switches. Forcing in this driver is for now only allowed when auto-neg is enabled. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown aaron.f.brown@intel.com Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-07-26 02:31:19 +00:00
/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
adapter->hw.phy.mdix = AUTO_ALL_MODES;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
net/igb/e1000/e1000e: more robust ethtool duplex/speed configuration This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27 18:32:43 +00:00
err_inval:
dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n");
return -EINVAL;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake,
bool runtime)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
igb: add 82576 MAC support Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:10:12 -07:00
u32 ctrl, rctl, status;
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
u32 wufc = runtime ? E1000_WUFC_LNKC : adapter->wol;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#ifdef CONFIG_PM
int retval = 0;
#endif
netif_device_detach(netdev);
igb: update suspend resume Updates the suspend and resume to better handle the possibility of MSIX vector changes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:13:38 -07:00
if (netif_running(netdev))
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
__igb_close(netdev, true);
igb: update suspend resume Updates the suspend and resume to better handle the possibility of MSIX vector changes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:13:38 -07:00
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
igb_clear_interrupt_scheme(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#ifdef CONFIG_PM
retval = pci_save_state(pdev);
if (retval)
return retval;
#endif
status = rd32(E1000_STATUS);
if (status & E1000_STATUS_LU)
wufc &= ~E1000_WUFC_LNKC;
if (wufc) {
igb_setup_rctl(adapter);
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
igb_set_rx_mode(netdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* turn on all-multi mode if wake on multicast is enabled */
if (wufc & E1000_WUFC_MC) {
rctl = rd32(E1000_RCTL);
rctl |= E1000_RCTL_MPE;
wr32(E1000_RCTL, rctl);
}
ctrl = rd32(E1000_CTRL);
/* advertise wake from D3Cold */
#define E1000_CTRL_ADVD3WUC 0x00100000
/* phy power management enable */
#define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
ctrl |= E1000_CTRL_ADVD3WUC;
wr32(E1000_CTRL, ctrl);
/* Allow time for pending master requests to run */
igb: replace unecessary &adapter->hw with just hw where applicable This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 23:51:35 +00:00
igb_disable_pcie_master(hw);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wr32(E1000_WUC, E1000_WUC_PME_EN);
wr32(E1000_WUFC, wufc);
} else {
wr32(E1000_WUC, 0);
wr32(E1000_WUFC, 0);
}
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
*enable_wake = wufc || adapter->en_mng_pt;
if (!*enable_wake)
igb: Power down link when interface is down This changes the behavior of the driver to power down the link when the associated interface is down, unless management is enabled. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:01:59 +00:00
igb_power_down_link(adapter);
else
igb_power_up_link(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
igb_release_hw_control(adapter);
pci_disable_device(pdev);
return 0;
}
#ifdef CONFIG_PM
igb: fix warning about unused function This patch fixes a warning about unused function when CONFIG_PM_SLEEP is not selected in the kernel config: igb_main.c: warning: `igb_suspend` defined but not used [W-unused-function] Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-01-28 08:10:35 +00:00
#ifdef CONFIG_PM_SLEEP
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_suspend(struct device *dev)
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
{
int retval;
bool wake;
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
struct pci_dev *pdev = to_pci_dev(dev);
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
retval = __igb_shutdown(pdev, &wake, 0);
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
if (retval)
return retval;
if (wake) {
pci_prepare_to_sleep(pdev);
} else {
pci_wake_from_d3(pdev, false);
pci_set_power_state(pdev, PCI_D3hot);
}
return 0;
}
igb: fix warning about unused function This patch fixes a warning about unused function when CONFIG_PM_SLEEP is not selected in the kernel config: igb_main.c: warning: `igb_suspend` defined but not used [W-unused-function] Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-01-28 08:10:35 +00:00
#endif /* CONFIG_PM_SLEEP */
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_resume(struct device *dev)
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
{
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
struct pci_dev *pdev = to_pci_dev(dev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
u32 err;
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
igb: call pci_save_state after pci_restore_state This patch adds calls to pci_save_state() immediately after calls to pci_restore_state(). Due to a change in the behavior of pci_restore_state() it is necessary to call pci_save_state() to keep the state_saved flag. This patch is based on a similar patch for ixgbe. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:19 +00:00
pci_save_state(pdev);
igb: make ioport free This patch makes igb driver ioport-free. This corrects behavior in probe function so as not to request ioport resources as long as they are not really needed. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-20 12:10:30 +09:00
igb: remove check for needing an io port Since igb supports only pci-e nics and there is no plan to support any legacy pci parts in the driver there isn't really much need for checking to see if an io port is needed. In the unlikely event that we do begin supporting legacy pci parts then we can see about adding this code back to the driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:04 +00:00
err = pci_enable_device_mem(pdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (err) {
dev_err(&pdev->dev,
"igb: Cannot enable PCI device from suspend\n");
return err;
}
pci_set_master(pdev);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
igb: remove duplicate code for fallback interrupt initialization Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-04 06:00:12 +00:00
if (igb_init_interrupt_scheme(adapter, true)) {
igb: update suspend resume Updates the suspend and resume to better handle the possibility of MSIX vector changes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:13:38 -07:00
dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
return -ENOMEM;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb_reset(adapter);
igb: move get_hw_control within igb_resume. Move igb_get_hw_control up so that it is called just after the reset in igb_resume. This notifies the HW sooner that the driver is reassuming control of the device. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:21:10 +00:00
/* let the f/w know that the h/w is now under the control of the
* driver. */
igb_get_hw_control(adapter);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
wr32(E1000_WUS, ~0);
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
if (netdev->flags & IFF_UP) {
igb: Move the calls to set the Tx and Rx queues into igb_open This change helps to address locking issues seen with netif_set_real_num_tx_queues and netif_set_real_num_rx_queues when used in the igb_set_interrupt_capability function. To resolve these locking issues I have moved the two function calls into __igb_open so that they can be called while the RTNL lock is held. An added advantage to this is that the number of queues is not updated until the last possible moment so if there are any issues in allocating MSI-X interrupts or resources for the rings we have time to change the values prior to updating the netdev. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:22 +00:00
rtnl_lock();
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
err = __igb_open(netdev, true);
igb: Move the calls to set the Tx and Rx queues into igb_open This change helps to address locking issues seen with netif_set_real_num_tx_queues and netif_set_real_num_rx_queues when used in the igb_set_interrupt_capability function. To resolve these locking issues I have moved the two function calls into __igb_open so that they can be called while the RTNL lock is held. An added advantage to this is that the number of queues is not updated until the last possible moment so if there are any issues in allocating MSI-X interrupts or resources for the rings we have time to change the values prior to updating the netdev. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-25 00:31:22 +00:00
rtnl_unlock();
igb: update suspend resume Updates the suspend and resume to better handle the possibility of MSIX vector changes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-08 15:13:38 -07:00
if (err)
return err;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
netif_device_attach(netdev);
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
return 0;
}
#ifdef CONFIG_PM_RUNTIME
static int igb_runtime_idle(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
if (!igb_has_link(adapter))
pm_schedule_suspend(dev, MSEC_PER_SEC * 5);
return -EBUSY;
}
static int igb_runtime_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
int retval;
bool wake;
retval = __igb_shutdown(pdev, &wake, 1);
if (retval)
return retval;
if (wake) {
pci_prepare_to_sleep(pdev);
} else {
pci_wake_from_d3(pdev, false);
pci_set_power_state(pdev, PCI_D3hot);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
return 0;
}
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
static int igb_runtime_resume(struct device *dev)
{
return igb_resume(dev);
}
#endif /* CONFIG_PM_RUNTIME */
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#endif
static void igb_shutdown(struct pci_dev *pdev)
{
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
bool wake;
igb: add basic runtime PM support Use the runtime power management framework to add basic runtime PM support to the igb driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. This feature is disabled by default. Based on e1000e's runtime PM code. Changes since v1: Don't suspend the device when shutting down the interface. Avoid race between runtime suspending and ethtool operations. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 20:23:37 +00:00
__igb_shutdown(pdev, &wake, 0);
net/igb: Fix kexec with igb (rev. 3) Impact: Fix Yinghai Lu found one system with 82575EB where, in the kernel that is kexeced, probe igb failed with -2, the reason being that the adapter could not be brought back from D3 by the kexec kernel, most probably due to quirky hardware (it looks like the same behavior happened on forcedeth). Prevent igb from putting the adapter into D3 during shutdown except when we going to power off the system. For this purpose, seperate igb_shutdown() from igb_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31 21:23:50 +00:00
if (system_state == SYSTEM_POWER_OFF) {
pci_wake_from_d3(pdev, wake);
pci_set_power_state(pdev, PCI_D3hot);
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
igb: Enable SR-IOV configuration via PCI sysfs interface Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-17 01:03:06 -08:00
#ifdef CONFIG_PCI_IOV
static int igb_sriov_reinit(struct pci_dev *dev)
{
struct net_device *netdev = pci_get_drvdata(dev);
struct igb_adapter *adapter = netdev_priv(netdev);
struct pci_dev *pdev = adapter->pdev;
rtnl_lock();
if (netif_running(netdev))
igb_close(netdev);
igb_clear_interrupt_scheme(adapter);
igb_init_queue_configuration(adapter);
if (igb_init_interrupt_scheme(adapter, true)) {
dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
return -ENOMEM;
}
if (netif_running(netdev))
igb_open(netdev);
rtnl_unlock();
return 0;
}
static int igb_pci_disable_sriov(struct pci_dev *dev)
{
int err = igb_disable_sriov(dev);
if (!err)
err = igb_sriov_reinit(dev);
return err;
}
static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs)
{
int err = igb_enable_sriov(dev, num_vfs);
if (err)
goto out;
err = igb_sriov_reinit(dev);
if (!err)
return num_vfs;
out:
return err;
}
#endif
static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
{
#ifdef CONFIG_PCI_IOV
if (num_vfs == 0)
return igb_pci_disable_sriov(dev);
else
return igb_pci_enable_sriov(dev, num_vfs);
#endif
return 0;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
#ifdef CONFIG_NET_POLL_CONTROLLER
/*
* Polling 'interrupt' - used by things like netconsole to send skbs
* without having to re-enable interrupts. It's not called while
* the interrupt routine is executing.
*/
static void igb_netpoll(struct net_device *netdev)
{
struct igb_adapter *adapter = netdev_priv(netdev);
igb: cleanup igb_netpoll to be more friendly with napi & GRO This patch cleans up igb_netpoll so that it is more friendly with both the current napi and newly introduced GRO features. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:29 +00:00
struct e1000_hw *hw = &adapter->hw;
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
struct igb_q_vector *q_vector;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
int i;
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
for (i = 0; i < adapter->num_q_vectors; i++) {
igb: avoid unnecessarily creating a local copy of the q_vector This is mostly a drop of unnecessary pointer defines for q_vector when we don't have issues with line width and don't have multiple references to the pointer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-26 07:46:34 +00:00
q_vector = adapter->q_vector[i];
if (adapter->msix_entries)
wr32(E1000_EIMC, q_vector->eims_value);
else
igb_irq_disable(adapter);
igb: add new data structure for handling interrupts and NAPI Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:49:27 +00:00
napi_schedule(&q_vector->napi);
igb: cleanup igb_netpoll to be more friendly with napi & GRO This patch cleans up igb_netpoll so that it is more friendly with both the current napi and newly introduced GRO features. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:19:29 +00:00
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
/**
* igb_io_error_detected - called when PCI error is detected
* @pdev: Pointer to PCI device
* @state: The current pci connection state
*
* This function is called after a PCI bus error affecting
* this device has been detected.
*/
static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
netif_device_detach(netdev);
igb: return PCI_ERS_RESULT_DISCONNECT on permanent error PCI drivers that implement the io_error_detected callback should return PCI_ERS_RESULT_DISCONNECT if the state passed in is pci_channel_io_perm_failure. This patch fixes the issue for igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-30 12:46:34 +00:00
if (state == pci_channel_io_perm_failure)
return PCI_ERS_RESULT_DISCONNECT;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
if (netif_running(netdev))
igb_down(adapter);
pci_disable_device(pdev);
/* Request a slot slot reset. */
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* igb_io_slot_reset - called after the pci bus has been reset.
* @pdev: Pointer to PCI device
*
* Restart the card from scratch, as if from a cold-boot. Implementation
* resembles the first-half of the igb_resume routine.
*/
static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
pci_ers_result_t result;
igb: make ioport free This patch makes igb driver ioport-free. This corrects behavior in probe function so as not to request ioport resources as long as they are not really needed. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-20 12:10:30 +09:00
int err;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: remove check for needing an io port Since igb supports only pci-e nics and there is no plan to support any legacy pci parts in the driver there isn't really much need for checking to see if an io port is needed. In the unlikely event that we do begin supporting legacy pci parts then we can see about adding this code back to the driver. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:16:04 +00:00
if (pci_enable_device_mem(pdev)) {
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
dev_err(&pdev->dev,
"Cannot re-enable PCI device after reset.\n");
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
result = PCI_ERS_RESULT_DISCONNECT;
} else {
pci_set_master(pdev);
pci_restore_state(pdev);
igb: call pci_save_state after pci_restore_state This patch adds calls to pci_save_state() immediately after calls to pci_restore_state(). Due to a change in the behavior of pci_restore_state() it is necessary to call pci_save_state() to keep the state_saved flag. This patch is based on a similar patch for ixgbe. Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 01:02:19 +00:00
pci_save_state(pdev);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
igb_reset(adapter);
wr32(E1000_WUS, ~0);
result = PCI_ERS_RESULT_RECOVERED;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
igb: fixup AER with proper error handling Based on Peter Waskiewicz patch for ixgbe. Add error handling based on Hemminger's recommendation. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-11 20:34:19 -08:00
err = pci_cleanup_aer_uncorrect_error_status(pdev);
if (err) {
dev_err(&pdev->dev, "pci_cleanup_aer_uncorrect_error_status "
"failed 0x%0x\n", err);
/* non-fatal, continue */
}
igb: Add support for pci-e Advanced Error Reporting Add the calls necessary to enable advanced error reporting for igb on systems with AER enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27 00:24:37 -08:00
return result;
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
}
/**
* igb_io_resume - called when traffic can start flowing again.
* @pdev: Pointer to PCI device
*
* This callback is called when the error recovery driver tells us that
* its OK to resume normal operation. Implementation resembles the
* second-half of the igb_resume routine.
*/
static void igb_io_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
if (netif_running(netdev)) {
if (igb_up(adapter)) {
dev_err(&pdev->dev, "igb_up failed after reset\n");
return;
}
}
netif_device_attach(netdev);
/* let the f/w know that the h/w is now under the control of the
* driver. */
igb_get_hw_control(adapter);
}
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
static void igb_rar_set_qsel(struct igb_adapter *adapter, u8 *addr, u32 index,
u8 qsel)
{
u32 rar_low, rar_high;
struct e1000_hw *hw = &adapter->hw;
/* HW expects these in little endian so we reverse the byte order
* from network order (big endian) to little endian
*/
rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) |
((u32) addr[2] << 16) | ((u32) addr[3] << 24));
rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
/* Indicate to hardware the Address is Valid. */
rar_high |= E1000_RAH_AV;
if (hw->mac.type == e1000_82575)
rar_high |= E1000_RAH_POOL_1 * qsel;
else
rar_high |= E1000_RAH_POOL_1 << qsel;
wr32(E1000_RAL(index), rar_low);
wrfl();
wr32(E1000_RAH(index), rar_high);
wrfl();
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
static int igb_set_vf_mac(struct igb_adapter *adapter,
int vf, unsigned char *mac_addr)
{
struct e1000_hw *hw = &adapter->hw;
igb: add support for set_rx_mode netdevice operation This patch adds support for the set_rx_mode netdevice operation so that igb can better support multiple unicast addresses. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 14:48:56 +00:00
/* VF MAC addresses start at end of receive addresses and moves
* torwards the first, as a result a collision should not be possible */
int rar_entry = hw->mac.rar_entry_count - (vf + 1);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: this patch addes the sr-iov enablement option via num_vfs parameter This code adds a module parameter called num_vfs which defines if the driver should attempt to use sr-iov and if so how many VFs should be enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:30 -08:00
memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: add combined function for setting rar and pool bits This patch adds igb_rar_qsel which sets the mac address and pool bits for a given mac address in the receive address register table. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-05 06:32:49 +00:00
igb_rar_set_qsel(adapter, mac_addr, rar_entry, vf);
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
return 0;
}
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
{
struct igb_adapter *adapter = netdev_priv(netdev);
if (!is_valid_ether_addr(mac) || (vf >= adapter->vfs_allocated_count))
return -EINVAL;
adapter->vf_data[vf].flags |= IGB_VF_FLAG_PF_SET_MAC;
dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
" change effective.");
if (test_bit(__IGB_DOWN, &adapter->state)) {
dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
" but the PF device is not up.\n");
dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
" attempting to use the VF device.\n");
}
return igb_set_vf_mac(adapter, vf, mac);
}
igb: add support for VF Transmit rate limit using iproute2 Implemented igb_ndo_set_vf_bw function which is being used by iproute2 tool. In addition, updated igb_ndo_get_vf_config function to show the actual rate limit to the user. The rate limitation can be configured only when the link is up. The rate limit value can be ranged between 0 and actual link speed measured in Mbps. A value of '0' disables the rate limit for this specific VF. iproute2 usage will be 'ip link set ethX vf Y rate Z'. After the command is made, the rate will be changed instantly. To view the current rate limit, use 'ip link show ethX'. The rates will be zeroed only upon driver reload or a link speed change. This feature is being supported only by 82576 device. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-08 02:28:46 +00:00
static int igb_link_mbps(int internal_link_speed)
{
switch (internal_link_speed) {
case SPEED_100:
return 100;
case SPEED_1000:
return 1000;
default:
return 0;
}
}
static void igb_set_vf_rate_limit(struct e1000_hw *hw, int vf, int tx_rate,
int link_speed)
{
int rf_dec, rf_int;
u32 bcnrc_val;
if (tx_rate != 0) {
/* Calculate the rate factor values to set */
rf_int = link_speed / tx_rate;
rf_dec = (link_speed - (rf_int * tx_rate));
rf_dec = (rf_dec * (1<<E1000_RTTBCNRC_RF_INT_SHIFT)) / tx_rate;
bcnrc_val = E1000_RTTBCNRC_RS_ENA;
bcnrc_val |= ((rf_int<<E1000_RTTBCNRC_RF_INT_SHIFT) &
E1000_RTTBCNRC_RF_INT_MASK);
bcnrc_val |= (rf_dec & E1000_RTTBCNRC_RF_DEC_MASK);
} else {
bcnrc_val = 0;
}
wr32(E1000_RTTDQSEL, vf); /* vf X uses queue X */
igb: A fix to VF TX rate limit There is a need to configure MMW_SIZE in register RTTBCNRM with a correct value. For 82576 device, the value should be 0x14. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-04 06:05:03 +00:00
/*
* Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
* register. MMW_SIZE=0x014 if 9728-byte jumbo is supported.
*/
wr32(E1000_RTTBCNRM, 0x14);
igb: add support for VF Transmit rate limit using iproute2 Implemented igb_ndo_set_vf_bw function which is being used by iproute2 tool. In addition, updated igb_ndo_get_vf_config function to show the actual rate limit to the user. The rate limitation can be configured only when the link is up. The rate limit value can be ranged between 0 and actual link speed measured in Mbps. A value of '0' disables the rate limit for this specific VF. iproute2 usage will be 'ip link set ethX vf Y rate Z'. After the command is made, the rate will be changed instantly. To view the current rate limit, use 'ip link show ethX'. The rates will be zeroed only upon driver reload or a link speed change. This feature is being supported only by 82576 device. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-08 02:28:46 +00:00
wr32(E1000_RTTBCNRC, bcnrc_val);
}
static void igb_check_vf_rate_limit(struct igb_adapter *adapter)
{
int actual_link_speed, i;
bool reset_rate = false;
/* VF TX rate limit was not set or not supported */
if ((adapter->vf_rate_link_speed == 0) ||
(adapter->hw.mac.type != e1000_82576))
return;
actual_link_speed = igb_link_mbps(adapter->link_speed);
if (actual_link_speed != adapter->vf_rate_link_speed) {
reset_rate = true;
adapter->vf_rate_link_speed = 0;
dev_info(&adapter->pdev->dev,
"Link speed has been changed. VF Transmit "
"rate is disabled\n");
}
for (i = 0; i < adapter->vfs_allocated_count; i++) {
if (reset_rate)
adapter->vf_data[i].tx_rate = 0;
igb_set_vf_rate_limit(&adapter->hw, i,
adapter->vf_data[i].tx_rate,
actual_link_speed);
}
}
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
{
igb: add support for VF Transmit rate limit using iproute2 Implemented igb_ndo_set_vf_bw function which is being used by iproute2 tool. In addition, updated igb_ndo_get_vf_config function to show the actual rate limit to the user. The rate limitation can be configured only when the link is up. The rate limit value can be ranged between 0 and actual link speed measured in Mbps. A value of '0' disables the rate limit for this specific VF. iproute2 usage will be 'ip link set ethX vf Y rate Z'. After the command is made, the rate will be changed instantly. To view the current rate limit, use 'ip link show ethX'. The rates will be zeroed only upon driver reload or a link speed change. This feature is being supported only by 82576 device. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-08 02:28:46 +00:00
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
int actual_link_speed;
if (hw->mac.type != e1000_82576)
return -EOPNOTSUPP;
actual_link_speed = igb_link_mbps(adapter->link_speed);
if ((vf >= adapter->vfs_allocated_count) ||
(!(rd32(E1000_STATUS) & E1000_STATUS_LU)) ||
(tx_rate < 0) || (tx_rate > actual_link_speed))
return -EINVAL;
adapter->vf_rate_link_speed = actual_link_speed;
adapter->vf_data[vf].tx_rate = (u16)tx_rate;
igb_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed);
return 0;
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
}
static int igb_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi)
{
struct igb_adapter *adapter = netdev_priv(netdev);
if (vf >= adapter->vfs_allocated_count)
return -EINVAL;
ivi->vf = vf;
memcpy(&ivi->mac, adapter->vf_data[vf].vf_mac_addresses, ETH_ALEN);
igb: add support for VF Transmit rate limit using iproute2 Implemented igb_ndo_set_vf_bw function which is being used by iproute2 tool. In addition, updated igb_ndo_get_vf_config function to show the actual rate limit to the user. The rate limitation can be configured only when the link is up. The rate limit value can be ranged between 0 and actual link speed measured in Mbps. A value of '0' disables the rate limit for this specific VF. iproute2 usage will be 'ip link set ethX vf Y rate Z'. After the command is made, the rate will be changed instantly. To view the current rate limit, use 'ip link show ethX'. The rates will be zeroed only upon driver reload or a link speed change. This feature is being supported only by 82576 device. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-08 02:28:46 +00:00
ivi->tx_rate = adapter->vf_data[vf].tx_rate;
igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10 01:44:24 +00:00
ivi->vlan = adapter->vf_data[vf].pf_vlan;
ivi->qos = adapter->vf_data[vf].pf_qos;
return 0;
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
static void igb_vmm_control(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
igb: setup vlan tag replication stripping in igb_vmm_control This update adds vlan tag stripping for inter-vf communications to the igb_vmm_control configuration function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:04 +00:00
u32 reg;
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
igb: cleanup usage of virtualization registers The igb driver was incorrectly attempting to write to registers that do not exist on 82580 hardware. This wasn't causing any issues that I can tell, but it is not recommended behavior either so I have changed this so we are determining which registers to write to based on mac type. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:07:46 +00:00
switch (hw->mac.type) {
case e1000_82575:
igb: Add Support for new i210/i211 devices. This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-06 23:25:19 +00:00
case e1000_i210:
case e1000_i211:
igb: cleanup usage of virtualization registers The igb driver was incorrectly attempting to write to registers that do not exist on 82580 hardware. This wasn't causing any issues that I can tell, but it is not recommended behavior either so I have changed this so we are determining which registers to write to based on mac type. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:07:46 +00:00
default:
/* replication is not supported for 82575 */
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
return;
igb: cleanup usage of virtualization registers The igb driver was incorrectly attempting to write to registers that do not exist on 82580 hardware. This wasn't causing any issues that I can tell, but it is not recommended behavior either so I have changed this so we are determining which registers to write to based on mac type. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:07:46 +00:00
case e1000_82576:
/* notify HW that the MAC is adding vlan tags */
reg = rd32(E1000_DTXCTL);
reg |= E1000_DTXCTL_VLAN_ADDED;
wr32(E1000_DTXCTL, reg);
case e1000_82580:
/* enable replication vlan tag stripping */
reg = rd32(E1000_RPLOLR);
reg |= E1000_RPLOLR_STRVLAN;
wr32(E1000_RPLOLR, reg);
igb: add support for Intel I350 Gigabit Network Connection This patch adds support for the the I350 Gigabit network connection which is the follow-on part to the 82580. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: James Hearn <james.r.hearn@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:08:06 +00:00
case e1000_i350:
/* none of the above registers are supported by i350 */
igb: cleanup usage of virtualization registers The igb driver was incorrectly attempting to write to registers that do not exist on 82580 hardware. This wasn't causing any issues that I can tell, but it is not recommended behavior either so I have changed this so we are determining which registers to write to based on mac type. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-22 14:07:46 +00:00
break;
}
igb: setup vlan tag replication stripping in igb_vmm_control This update adds vlan tag stripping for inter-vf communications to the igb_vmm_control configuration function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:54:04 +00:00
igb: delay VF reset notification until after interrupts are enabed This update delays the VF reset notification until after interrupts are enabled. Otherwise there is a chance of having the VF try to reset itself too soon and being ignored by the PF as a result. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:45 +00:00
if (adapter->vfs_allocated_count) {
igb_vmdq_set_loopback_pf(hw, true);
igb_vmdq_set_replication_pf(hw, true);
igb: Add Anti-spoofing feature support Add support for the anti-spoofing feature in the HW. Packets from VF devices with spoofed MAC addresses or VLAN tags will be blocked and an event generated. When the watchdog task runs it will call a function to check if any spoof events occurred. If an event was detected then a warning message is dumped to the system log. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2010-11-06 02:08:26 +00:00
igb_vmdq_set_anti_spoofing_pf(hw, true,
adapter->vfs_allocated_count);
igb: delay VF reset notification until after interrupts are enabed This update delays the VF reset notification until after interrupts are enabled. Otherwise there is a chance of having the VF try to reset itself too soon and being ignored by the PF as a result. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-27 15:53:45 +00:00
} else {
igb_vmdq_set_loopback_pf(hw, false);
igb_vmdq_set_replication_pf(hw, false);
}
igb: Add support for enabling VFs to PF driver. This patch adds the support to handle requests from the VF to perform operations such as completing resets, setting/reading mac address, adding vlans, adding multicast addresses, setting rlpml, and general communications between the PF and all VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-19 20:40:07 -08:00
}
igb: Move DMA Coalescing init code to separate function. This patch moves the DMA Coalescing feature initialization code from igb_reset to a new function and replaces it with a call to the new function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-13 17:29:59 +00:00
static void igb_init_dmac(struct igb_adapter *adapter, u32 pba)
{
struct e1000_hw *hw = &adapter->hw;
u32 dmac_thr;
u16 hwm;
if (hw->mac.type > e1000_82580) {
if (adapter->flags & IGB_FLAG_DMAC) {
u32 reg;
/* force threshold to 0. */
wr32(E1000_DMCTXTH, 0);
/*
igb: Update DMA Coalescing threshold calculation. This patch updates the DMA Coalescing feature parameters to account for larger MTUs. Previously, sufficient space may not have been allocated in the receive buffer, causing packet drop. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-11-17 08:33:12 +00:00
* DMA Coalescing high water mark needs to be greater
* than the Rx threshold. Set hwm to PBA - max frame
* size in 16B units, capping it at PBA - 6KB.
igb: Move DMA Coalescing init code to separate function. This patch moves the DMA Coalescing feature initialization code from igb_reset to a new function and replaces it with a call to the new function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-13 17:29:59 +00:00
*/
igb: Update DMA Coalescing threshold calculation. This patch updates the DMA Coalescing feature parameters to account for larger MTUs. Previously, sufficient space may not have been allocated in the receive buffer, causing packet drop. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-11-17 08:33:12 +00:00
hwm = 64 * pba - adapter->max_frame_size / 16;
if (hwm < 64 * (pba - 6))
hwm = 64 * (pba - 6);
reg = rd32(E1000_FCRTC);
reg &= ~E1000_FCRTC_RTH_COAL_MASK;
reg |= ((hwm << E1000_FCRTC_RTH_COAL_SHIFT)
& E1000_FCRTC_RTH_COAL_MASK);
wr32(E1000_FCRTC, reg);
/*
* Set the DMA Coalescing Rx threshold to PBA - 2 * max
* frame size, capping it at PBA - 10KB.
*/
dmac_thr = pba - adapter->max_frame_size / 512;
if (dmac_thr < pba - 10)
dmac_thr = pba - 10;
igb: Move DMA Coalescing init code to separate function. This patch moves the DMA Coalescing feature initialization code from igb_reset to a new function and replaces it with a call to the new function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-13 17:29:59 +00:00
reg = rd32(E1000_DMACR);
reg &= ~E1000_DMACR_DMACTHR_MASK;
reg |= ((dmac_thr << E1000_DMACR_DMACTHR_SHIFT)
& E1000_DMACR_DMACTHR_MASK);
/* transition to L0x or L1 if available..*/
reg |= (E1000_DMACR_DMAC_EN | E1000_DMACR_DMAC_LX_MASK);
/* watchdog timer= +-1000 usec in 32usec intervals */
reg |= (1000 >> 5);
igb: Disable the BMC-to-OS Watchdog Enable bit for DMAC. Under certain scenarios, it's possible that bursty manageability traffic over the BMC-to-OS path may overrun the internal manageability receive buffer causing dropped manageability packets. Clearing this bit prevents this situation by interrupting coalescing to allow manageability traffic through. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-14 05:20:32 +00:00
/* Disable BMC-to-OS Watchdog Enable */
reg &= ~E1000_DMACR_DC_BMC2OSW_EN;
igb: Move DMA Coalescing init code to separate function. This patch moves the DMA Coalescing feature initialization code from igb_reset to a new function and replaces it with a call to the new function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-13 17:29:59 +00:00
wr32(E1000_DMACR, reg);
/*
* no lower threshold to disable
* coalescing(smart fifb)-UTRESH=0
*/
wr32(E1000_DMCRTRH, 0);
reg = (IGB_DMCTLX_DCFLUSH_DIS | 0x4);
wr32(E1000_DMCTLX, reg);
/*
* free space in tx packet buffer to wake from
* DMA coal
*/
wr32(E1000_DMCTXTH, (IGB_MIN_TXPBSIZE -
(IGB_TX_BUF_4096 + adapter->max_frame_size)) >> 6);
/*
* make low power state decision controlled
* by DMA coal
*/
reg = rd32(E1000_PCIEMISC);
reg &= ~E1000_PCIEMISC_LX_DECISION;
wr32(E1000_PCIEMISC, reg);
} /* endif adapter->dmac is not disabled */
} else if (hw->mac.type == e1000_82580) {
u32 reg = rd32(E1000_PCIEMISC);
wr32(E1000_PCIEMISC, reg & ~E1000_PCIEMISC_LX_DECISION);
wr32(E1000_DMACR, 0);
}
}
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
static DEFINE_SPINLOCK(i2c_clients_lock);
/* igb_get_i2c_client - returns matching client
* in adapters's client list.
* @adapter: adapter struct
* @dev_addr: device address of i2c needed.
*/
igb: Refix sparse warning in igb_get_i2c_client This patch correctly resolves the sparse warnings found with this function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-14 03:28:19 +00:00
static struct i2c_client *
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
igb_get_i2c_client(struct igb_adapter *adapter, u8 dev_addr)
{
ulong flags;
struct igb_i2c_client_list *client_list;
struct i2c_client *client = NULL;
struct i2c_board_info client_info = {
I2C_BOARD_INFO("igb", 0x00),
};
spin_lock_irqsave(&i2c_clients_lock, flags);
client_list = adapter->i2c_clients;
/* See if we already have an i2c_client */
while (client_list) {
if (client_list->client->addr == (dev_addr >> 1)) {
client = client_list->client;
goto exit;
} else {
client_list = client_list->next;
}
}
igb: Fix for improper exit in igb_get_i2c_client This patch fixes an issue where we check for irq's disabled then exit after explicitly disabling them with spin_lock_irqsave. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <arron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-23 03:37:58 +00:00
/* no client_list found, create a new one */
igb: Fix for improper allocation flag in igb_get_i2c_client This patch fixes the allocation function in igb_get_i2c_client to use GFP_ATOMIC instead of GFP_KERNEL because we have a spinlock. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-23 03:43:01 +00:00
client_list = kzalloc(sizeof(*client_list), GFP_ATOMIC);
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
if (client_list == NULL)
goto exit;
/* dev_addr passed to us is left-shifted by 1 bit
* i2c_new_device call expects it to be flush to the right.
*/
client_info.addr = dev_addr >> 1;
client_info.platform_data = adapter;
client_list->client = i2c_new_device(&adapter->i2c_adap, &client_info);
if (client_list->client == NULL) {
igb: Enable hwmon data output for thermal sensors via I2C. Some of our adapters have internal sensors that report thermal data. This patch enables reporting of that data via sysfs. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:01:42 +00:00
dev_info(&adapter->pdev->dev,
"Failed to create new i2c device..\n");
igb: Add i2c interface to igb. Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-07 03:00:30 +00:00
goto err_no_client;
}
/* insert new client at head of list */
client_list->next = adapter->i2c_clients;
adapter->i2c_clients = client_list;
client = client_list->client;
goto exit;
err_no_client:
kfree(client_list);
exit:
spin_unlock_irqrestore(&i2c_clients_lock, flags);
return client;
}
/* igb_read_i2c_byte - Reads 8 bit word over I2C
* @hw: pointer to hardware structure
* @byte_offset: byte offset to read
* @dev_addr: device address
* @data: value read
*
* Performs byte read operation over I2C interface at
* a specified device address.
*/
s32 igb_read_i2c_byte(struct e1000_hw *hw, u8 byte_offset,
u8 dev_addr, u8 *data)
{
struct igb_adapter *adapter = container_of(hw, struct igb_adapter, hw);
struct i2c_client *this_client = igb_get_i2c_client(adapter, dev_addr);
s32 status;
u16 swfw_mask = 0;
if (!this_client)
return E1000_ERR_I2C;
swfw_mask = E1000_SWFW_PHY0_SM;
if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask)
!= E1000_SUCCESS)
return E1000_ERR_SWFW_SYNC;
status = i2c_smbus_read_byte_data(this_client, byte_offset);
hw->mac.ops.release_swfw_sync(hw, swfw_mask);
if (status < 0)
return E1000_ERR_I2C;
else {
*data = status;
return E1000_SUCCESS;
}
}
/* igb_write_i2c_byte - Writes 8 bit word over I2C
* @hw: pointer to hardware structure
* @byte_offset: byte offset to write
* @dev_addr: device address
* @data: value to write
*
* Performs byte write operation over I2C interface at
* a specified device address.
*/
s32 igb_write_i2c_byte(struct e1000_hw *hw, u8 byte_offset,
u8 dev_addr, u8 data)
{
struct igb_adapter *adapter = container_of(hw, struct igb_adapter, hw);
struct i2c_client *this_client = igb_get_i2c_client(adapter, dev_addr);
s32 status;
u16 swfw_mask = E1000_SWFW_PHY0_SM;
if (!this_client)
return E1000_ERR_I2C;
if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask) != E1000_SUCCESS)
return E1000_ERR_SWFW_SYNC;
status = i2c_smbus_write_byte_data(this_client, byte_offset, data);
hw->mac.ops.release_swfw_sync(hw, swfw_mask);
if (status)
return E1000_ERR_I2C;
else
return E1000_SUCCESS;
}
igb: PCI-Express 82575 Gigabit Ethernet driver We are pleased to announce a new Gigabit Ethernet product and its driver to the linux community. This product is the Intel(R) 82575 Gigabit Ethernet adapter family. Physical adapters will be available to the public soon. These adapters come in 2- and 4-port versions (copper PHY) currently. Other variants will be available later. The 82575 chipset supports significantly different features that warrant a new driver. The descriptor format is (just like the ixgbe driver) different. The device can use multiple MSI-X vectors and multiple queues for both send and receive. This allows us to optimize some of the driver code specifically as well compared to the e1000-supported devices. This version of the igb driver no lnger uses fake netdevices and incorporates napi_struct members for each ring to do the multi- queue polling. multi-queue is enabled by default and the driver supports NAPI mode only. All the namespace collisions should be gone in this version too. The register macro's have been condensed to improve readability. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-24 02:22:38 -08:00
/* igb_main.c */
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