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49,601 commits

Author SHA1 Message Date
Alexander Duyck
24cd23d3d2 igb: use new eth_get_headlen interface
Update igb to drop the igb_get_headlen function in favor of eth_get_headlen.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by:  Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 17:47:02 -07:00
Alexander Duyck
62bccb8cdb net-timestamp: Make the clone operation stand-alone from phy timestamping
The phy timestamping takes a different path than the regular timestamping
does in that it will create a clone first so that the packets needing to be
timestamped can be placed in a queue, or the context block could be used.

In order to support these use cases I am pulling the core of the code out
so it can be used in other drivers beyond just phy devices.

In addition I have added a destructor named sock_efree which is meant to
provide a simple way for dropping the reference to skb exceptions that
aren't part of either the receive or send windows for the socket, and I
have removed some duplication in spots where this destructor could be used
in place of sock_edemux.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 17:43:45 -07:00
Dan Carpenter
b1c849276b hyperv: NULL dereference on error
We try to call free_netvsc_device(net_device) when "net_device" is NULL.
It leads to an Oops.

Fixes: f90251c8a6 ('hyperv: Increase the buffer length for netvsc_channel_cb()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 17:29:22 -07:00
Yaniv Rosner
6e9e564437 bnx2x: Fix link problems for 1G SFP RJ45 module
When 1G SFP RJ45 module is detected, driver must reset the Tx laser
in order to prevent link issues. As part of change, the link_attr_sync
was relocated from vars to params.

Signed-off-by: Yaniv Rosner <Yaniv.Rosner@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 17:28:37 -07:00
Neil Horman
98ea232cf6 3c59x: avoid panic in boomerang_start_xmit when finding page address:
This bug was reported on a very old kernel (RHEL6, 2.6.32-491.el6):

BUG: unable to handle kernel paging request at 00800000
IP: [<c04107b5>] nommu_map_page+0x15/0x110
*pdpt = 000000003454f001 *pde = 000000003f03d067
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/online
Modules linked in: nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs p4_clockmod
ipv6 ppdev parport_pc parport microcode iTCO_wdt iTCO_vendor_support 3c59x mii
dcdbas serio_raw snd_intel8x0 snd_ac97_codec ac97_bus snd_seq snd_seq_device
snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 sg lpc_ich mfd_core ext4
jbd2 mbcache sr_mod cdrom sd_mod crc_t10dif pata_acpi ata_generic ata_piix
radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core dm_mirror dm_region_hash
dm_log dm_mod [last unloaded: mperf]

Pid: 4219, comm: nfsd Not tainted 2.6.32-491.el6.i686 #1 Dell Computer
Corporation OptiPlex GX240               /OptiPlex GX240
EIP: 0060:[<c04107b5>] EFLAGS: 00010246 CPU: 0
EIP is at nommu_map_page+0x15/0x110
EAX: 00000000 EBX: c0a83480 ECX: 00000000 EDX: 00800000
ESI: 00000000 EDI: f70e7860 EBP: e2d09b54 ESP: e2d09b24
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process nfsd (pid: 4219, ti=e2d08000 task=e2ceaaa0 task.ti=e2d08000)
Stack:
 00000056 00000000 0000000e c65efd38 00000020 00000296 00000206 00000206
<0> c050c850 c0a83480 e2cef154 00000001 e2d09ba8 f8fcd585 00000510 00000001
<0> 00000000 00000000 f5172200 f8fdac00 0039ef8c f5277020 f70e7860 00000510
Call Trace:
 [<c050c850>] ? page_address+0xd0/0xe0
 [<f8fcd585>] ? boomerang_start_xmit+0x3b5/0x520 [3c59x]
 [<c07b2975>] ? dev_hard_start_xmit+0xe5/0x400
 [<f9182b00>] ? ip6_output_finish+0x0/0xf0 [ipv6]
 [<c07ca053>] ? sch_direct_xmit+0x113/0x180
 [<c07d5588>] ? nf_hook_slow+0x68/0x120
 [<c07b2ea5>] ? dev_queue_xmit+0x1b5/0x290
 [<f9182b6d>] ? ip6_output_finish+0x6d/0xf0 [ipv6]
 [<f9184cb8>] ? ip6_xmit+0x3e8/0x490 [ipv6]
 [<f91ab9f9>] ? inet6_csk_xmit+0x289/0x2f0 [ipv6]
 [<c07f6451>] ? tcp_transmit_skb+0x431/0x7f0
 [<c07a403f>] ? __alloc_skb+0x4f/0x140
 [<c07f85a2>] ? tcp_write_xmit+0x1c2/0xa50
 [<c07f90b1>] ? __tcp_push_pending_frames+0x31/0xe0
 [<c07ea47a>] ? tcp_sendpage+0x44a/0x4b0
 [<c07ea030>] ? tcp_sendpage+0x0/0x4b0
 [<c079be1e>] ? kernel_sendpage+0x4e/0x90
 [<f8457bb9>] ? svc_send_common+0xc9/0x120 [sunrpc]
 [<f8457c85>] ? svc_sendto+0x75/0x1f0 [sunrpc]
 [<c060d0d9>] ? _atomic_dec_and_lock+0x59/0x90
 [<f87d55d0>] ? nfs3svc_encode_readres+0x0/0xc0 [nfsd]
 [<f845876d>] ? svc_authorise+0x2d/0x40 [sunrpc]
 [<f87d4410>] ? nfs3svc_release_fhandle+0x0/0x10 [nfsd]
 [<f8455721>] ? svc_process_common+0xf1/0x5a0 [sunrpc]
 [<f8457e86>] ? svc_tcp_sendto+0x36/0xa0 [sunrpc]
 [<f8461778>] ? svc_send+0x98/0xd0 [sunrpc]
 [<f87c698c>] ? nfsd+0xac/0x140 [nfsd]
 [<c04470e0>] ? complete+0x40/0x60
 [<f87c68e0>] ? nfsd+0x0/0x140 [nfsd]
 [<c04802ac>] ? kthread+0x7c/0xa0
 [<c0480230>] ? kthread+0x0/0xa0
 [<c0409f9f>] ? kernel_thread_helper+0x7/0x10
Code: 8d b6 00 00 00 00 eb f8 8d b4 26 00 00 00 00 8d bc 27 00 00 00 00 55 89 e5
83 ec 30 89 75 f8 31 f6 89 7d fc 89 c7 89 c8 89 5d f4 <8b> 1a 8b 4d 08 c1 eb 19
c1 e3 04 8b 9b c0 29 c7 c0 83 e3 fc 29

But the problem seems to still exist upstream.  It seems on 32 bit kernels
page_address() can reutrn a NULL value in some circumstances, and the
pci_map_single api isn't prepared to handle that (on this system it results in a
bogus pointer deference in nommu_map_page.

The fix is pretty easy, if we convert the 3c59x driver to use the more
convieient skb_frag_dma_map api we don't need to find the virtual address of the
page at all, and page gets mapped to the hardware properly.  Verified to fix the
problem as described by the reporter.

Applies to the net tree

Change Notes:

v2) Converted PCI_DMA_TODEVICE to DMA_TO_DEVICE.  Thanks Dave!

v3) Actually Run git commit after making changes to v2 :)

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: klassert@mathematik.tu-chemnitz.de
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 17:24:02 -07:00
David S. Miller
a77f9a282a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-09-04

This series contains updates to i40e, i40evf, ixgbe and ixgbevf.

Catherine adds dual speed module support to i40e.  Updates i40e to allow
the user to change link settings when the link is down.

Serey renames i40e_ndo_set_vf_spoofck() to i40e_ndo_set_vf_spookchk()
to be more consistent with what is defined in netdev and removes a
unnecessary variable assignment.

Jesse makes a malicious driver detection warning only print if extended
driver string is enabled for i40e.  Fixes a panic under traffic load when
resetting or if/whenever there was a Tx-timeout because we were enabling
the Tx queue to early.

Anjali fixes an issue when PF reset fails, where we were trying to restart
the admin queue which has not been setup at that point.  This resolves an
occasional kernel panic when PF reset fails for some reason.

Ethan Zhao replaces the use of a local i40e_vfs_are_assigned() with the
global kernel pci_vfs_assigned() for i40e.

Alex cleans up the FDB handling for ixgbe.  This change makes it so that
the behavior for FDB handling is consistent between both the SR-IOV and
non-SR-IOV cases.  The main change is that we perform bounds checking on
the number of SR-IOV addresses regardless of if SR-IOV is enabled or not
as we can only support a certain number of addresses in the hardware.

Emil extends the pending Tx work check to the VF interfaces, where the
driver initiates a reset of the interface on link loss with pending Tx
work in order to clear the rings.  Introduces a delay for 82599 VFs of
at least 500 usecs to make sure the VFLINKS value is correct, since this
bit tends to flap when a DA or SFP+ cable is disconnected.

Jacob adds code comments in ixgbe to make it more obvious that we are
resetting features based on the fact that we do not have MSI-X enabled,
and cannot use the previous settings.  Also resolves a kernel NULL
pointer dereference by limiting the combined total of MACVLAN and
SR-IOV VFs, since the hardware has a limited number of pools available
(64).  Previously, no checks were in place to limit the number of
accelerated MACVLAN devices based on the number of pools, which would
be ok since there was already a limit for these well below the number of
available pools.  However, SR-IOV uses the very same pools, therefore
we need to ensure that the total number of pools does not exceed the
number of pools available in the hardware.

v2:
 - clean up code comment in patch 5 by replacing "an" with "auto
   negotiation" based on feedback from Sergei Shtylyov
 - removed un-necessary parenthesis around function call in patch 8
   based on feedback from Sergei Shtylyov
====================
2014-09-05 17:21:06 -07:00
Daniel Mack
c2b32e580c net: ethernet: cpsw: improve interrupt lookup logic in cpsw_probe()
Simplify the interrupt resource lookup code in cpsw_probe() by the
following:

 * Only look at the first member of the resource. As the driver only
   works for DT-enabled platforms anyway, a resource of type
   IORESOURCE_IRQ will only contain one single entry
   (res->start == res->end), so there is no need for the iteration.

 * Add a bounds check to avoid overflows if we are passed more than
   ARRAY_SIZE(priv->irqs_table) resources.

 * Assign 'ret' with the return value of devm_request_irq() so that
   cpsw_probe() returns the appropriate error code.

 * If devm_request_irq() fails, report the error code in the log
   message.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 17:17:13 -07:00
Lendacky, Thomas
b73c798b17 amd-xgbe-phy: Checkpatch driver fixes
This patch contains fixes identified by checkpatch when run with the
strict option.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 15:11:21 -07:00
Lendacky, Thomas
a2ea14d772 amd-xgbe: Checkpatch driver fixes
This patch contains fixes identified by checkpatch when run with the
strict option.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 15:11:20 -07:00
Lendacky, Thomas
e6f0562ff4 amd-xgbe-phy: Enhance parallel detection to support KR speed
Add support to allow parallel detection to work in KR speed. With
both speed modes of KX and KR supported, KX must be checked first.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 15:11:20 -07:00
Lendacky, Thomas
e3eec4e793 amd-xgbe-phy: Check device for current speed mode (KR/KX)
Since device resets can change the current mode it's possible to think
the device is in a different mode than it actually is.  Rather than
trying to determine every place that is needed to set/save the current
mode, be safe and check the devices actual mode when needed rather than
trying to track it.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 15:11:20 -07:00
Chen Gang
4357450af3 drivers/net/fddi/skfp/h/skfbi.h: Remove useless PCI_BASE_2ND macros
They are use less, and may generate compiling warnings, so remove them
(microblaze, arc, arm64, and unicore32 have already defined PCI_IOBASE).

The related warnings (with allmodconfig under microblaze):

  CC [M]  drivers/net/fddi/skfp/skfddi.o
  In file included from drivers/net/fddi/skfp/skfddi.c:95:0:
  drivers/net/fddi/skfp/h/skfbi.h:151:0: warning: "PCI_IOBASE" redefined
   #define PCI_IOBASE 0xffffff00L  /* Bit 31..8:  I/O Base address */
   ^
  In file included from include/linux/io.h:22:0,
                   from include/linux/pci.h:31,
                   from drivers/net/fddi/skfp/skfddi.c:82:
  ./arch/microblaze/include/asm/io.h:33:0: note: this is the location of the previous definition
   #define PCI_IOBASE ((void __iomem *)_IO_BASE)
   ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 14:51:09 -07:00
hayeswang
179bb6d7f0 r8152: use eth_hw_addr_random
If the hw doesn't have a valid MAC address, give a random one and
set it to the hw.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 12:17:00 -07:00
hayeswang
8ba789ab13 r8152: change the location of rtl8152_set_mac_address
Exchange the location of rtl8152_set_mac_address() and
set_ethernet_addr(). Then, the set_ethernet_addr() could
set the MAC address by calling rtl8152_set_mac_address()
later.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 12:17:00 -07:00
Govindarajulu Varadarajan
d4ad30b182 enic: Add tunable_ops support for rx_copybreak
This patch adds support for setting/getting rx_copybreak using
generic ethtool tunable.

Defines enic_get_tunable() & enic_set_tunable() to get/set rx_copybreak.
As of now, these two function supports only rx_copybreak.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 12:12:20 -07:00
Govindarajulu Varadarajan
a03bb56e67 enic: implement rx_copybreak
Calling dma_map_single()/dma_unmap_single() is quite expensive compared
to copying a small packet. So let's copy short frames and keep the buffers
mapped.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 12:12:20 -07:00
Andy King
4ad9a64f53 VMXNET3: Check for map error in vmxnet3_set_mc
We should check if the map of the table actually succeeds, and also free
resources accordingly.

Version bumped to 1.2.1.0

Acked-by: Shelley Gong <shelleygong@vmware.com>
Acked-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Andy King <acking@vmware.com>
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05 11:50:39 -07:00
Lorenzo Bianconi
a4bcaf5556 mac80211: extend set_coverage_class signature
Extend mac80211 set_coverage_class API in order to enable ACK timeout
estimation algorithm (dynack) passing coverage class equals to -1
to lower drivers. Synchronize set_coverage_class routine signature with
mac80211 function pointer for p54, ath9k, ath9k_htc and ath5k drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-05 13:54:07 +02:00
Florian Fainelli
4a804c0163 net: systemport: update UMAC_CMD only when link is detected
When we bring the interface down, phy_stop() will schedule the PHY
state machine to call our link adjustment callback. By the time we do so,
we may have clock gated off the SYSTEMPORT hardware block, and this will
cause bus errors to happen in bcm_sysport_adj_link():

Make sure that we only touch the UMAC_CMD register when there is an
actual link. This is safe to do for two reasons:

- updating the Ethernet MAC registers only make sense when a physical
  link is present
- the PHY library state machine first set phydev->link = 0 before
  invoking phydev->adjust_link in the PHY_HALTED case

This is a similar fix to the GENET one:
c677ba8b3c ("net: bcmgenet: update
UMAC_CMD only when link is detected").

Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-04 23:13:58 -07:00
Jade Bilkey
db906eb210 ath5k: added debugfs file for dumping eeprom
Signed-off-by: Jade Bilkey <herself@thefumon.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-04 13:50:12 -04:00
John W. Linville
d17ec4d552 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2014-09-04 13:45:56 -04:00
John W. Linville
ef4ead3f29 Not that much content this time. Some RCU cleanups, crypto
performance improvements, and various patches all over,
 rather than listing them one might as well look into the
 git log instead.
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Merge tag 'mac80211-next-for-john-2014-08-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"Not that much content this time. Some RCU cleanups, crypto
performance improvements, and various patches all over,
rather than listing them one might as well look into the
git log instead."

Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:
	drivers/net/wireless/ath/wil6210/wmi.c
2014-09-04 13:41:33 -04:00
John W. Linville
1bd3fa7b8c Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes 2014-09-04 13:12:02 -04:00
Jacob Keller
aac2f1bf14 ixgbe: limit combined total of macvlan and SR-IOV VFs
Hardware has a limited number of pools available (64). Previously, no
checks were in place to limit the number of accelerated macvlan devices
based on the number of pools. Normally this would be ok, because there
was already a limit for these well below the number of available pools.
However, SR-IOV uses the very same pools. Therefor, we need to ensure
that the total number of pools (number of VFs plus the number of non-VF
pools in use for accelerated macvlans) does not exceed the number of
pools available in hardware.

This patch resolves a kernel NULL pointer dereference caused by the following commands:

$modprobe ixgbe max_vfs=63

$ethtool -K eth2 l2-fwd-offload on

$ip link add link eth2 macvlan0 type macvlan

$ip link set dev macvlan0 up

[  992.950080] BUG: unable to handle kernel NULL pointer dereference at 0000000000000056
[  992.951109] IP: [<ffffffffa003b71e>] ixgbe_disable_fwd_ring+0x1e/0xf0 [ixgbe]
[  992.951684] PGD 22a80e067 PUD 232e9b067 PMD 0
[  992.952389] Oops: 0000 [#1] SMP
[  992.953014] Modules linked in: nfsd lockd nfs_acl exportfs auth_rpcgss oid_registry sunrpc bridge stp llc vhost_net macvtap macvlan vhost tun kvm_intel kvm ioatdma ixgbe mdio igb dca
[  992.956042] CPU: 2 PID: 11928 Comm: ifconfig Not tainted 3.16.0-rc6-net-next-07-29-2014-FCoE+ #1
[  992.956915] Hardware name: Intel Corporation S2600CO/S2600CO, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014
[  992.957791] task: ffff8804341c0000 ti: ffff8801d7dc8000 task.ti: ffff8801d7dc8000
[  992.958660] RIP: 0010:[<ffffffffa003b71e>]  [<ffffffffa003b71e>] ixgbe_disable_fwd_ring+0x1e/0xf0 [ixgbe]
[  992.959613] RSP: 0018:ffff8801d7dcbbb8  EFLAGS: 00010286
[  992.960093] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001
[  992.960575] RDX: ffff880232eb7000 RSI: 0000000000000000 RDI: ffff88022dc05800
[  992.961059] RBP: ffff8801d7dcbbd8 R08: 0000000000000000 R09: 0000000000000000
[  992.961541] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88022ec20980
[  992.962023] R13: ffff880232eb7000 R14: 0000000000000001 R15: 0000000000000001
[  992.962508] FS:  00007fab264887a0(0000) GS:ffff880237640000(0000) knlGS:0000000000000000
[  992.963378] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  992.963858] CR2: 0000000000000056 CR3: 000000022a939000 CR4: 00000000001427e0
[  992.964340] Stack:
[  992.964806]  ffff88022ec28840 ffff88022ec20980 ffff88022dc05800 ffff880232eb7000
[  992.965976]  ffff8801d7dcbc28 ffffffffa003bae8 ffff8801d7dcbbe8 0000000000000400
[  992.967147]  000000000000000d ffff88022ec20980 ffff88022ec20000 ffff88022dc05800
[  992.968319] Call Trace:
[  992.968795]  [<ffffffffa003bae8>] ixgbe_fwd_ring_up+0x88/0x280 [ixgbe]
[  992.969284]  [<ffffffffa0041d83>] ixgbe_fwd_add+0x173/0x220 [ixgbe]
[  992.969767]  [<ffffffffa015056c>] macvlan_open+0x1bc/0x230 [macvlan]
[  992.970256]  [<ffffffff816b8de7>] __dev_open+0xd7/0x150
[  992.970735]  [<ffffffff816b8bd7>] __dev_change_flags+0xa7/0x170
[  992.971220]  [<ffffffff816b8ccb>] dev_change_flags+0x2b/0x70
[  992.971703]  [<ffffffff817471b2>] devinet_ioctl+0x602/0x6d0
[  992.972184]  [<ffffffff81748168>] inet_ioctl+0x78/0x90
[  992.972666]  [<ffffffff816a143b>] sock_do_ioctl+0x2b/0x70
[  992.973146]  [<ffffffff816a14ed>] sock_ioctl+0x6d/0x260
[  992.973627]  [<ffffffff811ad3b4>] do_vfs_ioctl+0x84/0x540
[  992.974109]  [<ffffffff811a4c81>] ? final_putname+0x21/0x50
[  992.974593]  [<ffffffff818725d5>] ? sysret_check+0x22/0x5d
[  992.975073]  [<ffffffff811ad901>] SyS_ioctl+0x91/0xa0
[  992.975550]  [<ffffffff818725a9>] system_call_fastpath+0x16/0x1b
[  992.976026] Code: ff 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 83 ec 20 48 89 5d e8 4c 89 65 f0 48 89 f3 4c 89 6d f8 4c 8b a7 08 02 00 00 <44> 0f b6 6e 56 44 03 af 14 02 00 00 4c 89 e7 e8 5e f2 ff ff be
[  992.982261] RIP  [<ffffffffa003b71e>] ixgbe_disable_fwd_ring+0x1e/0xf0 [ixgbe]
[  992.983212]  RSP <ffff8801d7dcbbb8>
[  992.983681] CR2: 0000000000000056
[  992.984248] ---[ end trace 9f54802b5cc3638b ]---

Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:33 -07:00
Jacob Keller
eec66731de ixgbe: add comment noting recalculation of queues
Since we previously called ixgbe_set_num_queues just prior to attempting
to set our interrupt scheme, it may be non obvious why we have to call
it again inside the function. Add a comment which helps make it more
obvious that we are resetting features based on the fact that we do not
have MSI-X enabled, and cannot use the previous settings.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:33 -07:00
Emil Tantilov
b8a2ca19bc ixgbevf: introduce delay for checking VFLINKS on 82599
VFLINKS.LINKUP bit tends to flap when a DA or SFP+ cable is disconnected.
It can take up to 500 usecs for the LINKUP bit to be correct.

This patch resolves the issue by introducing a delay for 82599 VFs of at
least 500 usecs to make sure the VFLINKS value is correct.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:32 -07:00
Emil Tantilov
07923c17b1 ixgbe: reset interface on link loss with pending Tx work from the VF
ixgbe initiates a reset of the interface on link loss with pending Tx work
in order to clear the rings.

This patch extends the pending Tx work check to the VF interfaces with the
same purpose.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:32 -07:00
Alexander Duyck
bcfd3432d1 ixgbe: Cleanup FDB handling code
This change makes it so that the behavior for FDB handling is consistent
between both the SR-IOV and non-SR-IOV cases.  The main change here is that we
perform bounds checking on the number of SR-IOV addresses regardless of if
SR-IOV is enabled or not as we can only support a certain number of addresses
in the hardware.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:32 -07:00
Ethan Zhao
c24817b6ba i40e: use global pci_vfs_assigned() to replace local i40e_vfs_are_assigned()
There is global funcion pci_vfs_assigned(), so use it instead of composing
local one.

Signed-off-by: Ethan Zhao <ethan.kernel@gmail.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:31 -07:00
Catherine Sullivan
e966d5c612 i40e/i40evf: Bump i40e/i40evf versions
Bump i40e version to 1.0.11 and i40evf version to 1.0.5.

Change-ID: I63a60fa2efe82aae87a8a3095f43218db57d46ce
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
2014-09-04 01:38:31 -07:00
Jesse Brandeburg
32b5b81170 i40e: fix panic due to too-early Tx queue enable
This fixes the panic under traffic load when resetting.  This issue
could also show up if/whenever there is a Tx-timeout.

Change-ID: Ie393a1f17fd5d962e56fc3bfe784899ef25402f5
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:31 -07:00
Anjali Singhai Jain
a316f651c7 i40e: Fix an issue when PF reset fails
We shouldn't restart Admin queue subtask if PF reset fails since we do
not have the AQ setup at that point. This patch makes sure we disable AQ
clean subtask when PF reset fails.

This will resolve an occasional kernel panic when PF reset fails for
some reason.

Change-ID: I11a747773362a8c5c0ad7a10cd34be0bda8eb9e8
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:30 -07:00
Jesse Brandeburg
faf3297861 i40e: make warning less verbose
The driver is un-necessarily printing a warning that is only marginally
useful to the user.  Make the warning only print if extended driver
string printing is enabled, other messages related to a reset event
will still continue to print.

Change-ID: I5e8beca6516a2f176cd2e72b0ac2b3b909e6c953
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:30 -07:00
Catherine Sullivan
9412851629 i40e: Tell OS link is going down when calling set_phy_config
Since we don't seem to be getting an LSE telling us link is going down
during set_phy_config (but we do get an LSE telling us we are coming
back up), fake one for the OS and tell them link is going down. Also
do an atomic restart no matter what because there are times the user
may want to end with link up even if they started with link down (like
if they accidentally set it to a speed that can't link and are trying to
fix it).

Change-ID: I0a642af9c1d0feb67bce741aba1a9c33bd349ed6
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:29 -07:00
Serey Kong
356821a37d i40e: Remove unnecessary assignment
Remove unnecessary setting of "ret" variable as it's already set at
the top of the function.

Change-ID: Icaccfc67f335817a23579b7c43625d59ad6c9925
Signed-off-by: Serey Kong <serey.kong@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:29 -07:00
Serey Kong
e6d9004d22 i40e: Change wording to be more consistent
Change "spoofck" to "spoofchk" to be consistent with as defined in netdev.

Change-ID: I9866d6284cb5f92c8d71dc0776c6d1e71dfb62a5
Signed-off-by: Serey Kong <serey.kong@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:29 -07:00
Catherine Sullivan
c57e9f179b i40e: Allow user to change link settings if link is down
Allow the user to change auto-negotiation and speed settings if
link is down.

Change-ID: I372967c627682b5e1835f623a7cbf41b21b51043
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:28 -07:00
Catherine Sullivan
124ed15bf1 i40e: Add dual speed module support
Now that fw has implemented dual speed module support, we can add ours.
Also, add the phy type for 1G LR/SR and set its media type to fiber.
Lastly, instead of a WARN_ON if the phy type is not recognized just print
a warning.

Change-ID: I2e5227d4a8c2907b0ed423038e5dbce774e466b0
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-09-04 01:38:28 -07:00
Rick Jones
b89df95d52 mlx4_en: Convert the normal skb free path to dev_consume_skb_any()
It would appear the mlx4_en driver was still making a call to
dev_kfree_skb_any() where dev_consume_skb_any() would be more
appropriate.  This should make dropped packet profiling/tracking
easier/better over a NIC driven by mlx4_en.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-03 21:00:17 -07:00
Johannes Berg
712b24adc1 iwlwifi: mvm: clean up AUX station handling
The auxiliary station is being handled using the internal
station helper functions, clean that up and make the helpers
static.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:13 +03:00
Johannes Berg
013290aa46 iwlwifi: mvm: clean up broadcast station handling
Unify all the functions that handle the per-interface broadcast
station and make them have mvm and vif parameters. While at it,
add a new function to allocate the broadcast station instead of
open-coding it, and make the combined alloc+send and free+send
functions use the alloc/free & send functions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:13 +03:00
Johannes Berg
110cf81085 iwlwifi: mvm: use iwl_mvm_mac_get_queues_mask() more
There are a few places that can call the function
iwl_mvm_mac_get_queues_mask() instead of open-coding the
equivalent, so do that. This requires changing it to return
the multicast queue as part of the bitmap, which broke GO
mode because including it in the broadcast station queues
seems to confuse the firmware, so work around that.

Also, the API defines that the CAB queue shouldn't be
included in the TFD queue mask, adjust the comment
accordingly (not a bug).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:12 +03:00
Johannes Berg
9e848010bf iwlwifi: mvm: use tdls indication from mac80211
Instead of checking whether a given station is the first to
be added on a client interface check for the new TDLS flag
and warn in the unexpected cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:11 +03:00
Johannes Berg
df197c00bf iwlwifi: mvm: clarify stop_count, remove transport_stopped
The queue handling is a bit unclear - we have an array for
stop_count[IWL_MAX_HW_QUEUES] but indices really are the
mac80211 queue numbers. Change the array to be only of the
right size for mac80211 queues (IEEE80211_MAX_QUEUES) and
rename it to be clearer.

While at it, also remove the unused transport queue stop
bitmap in mvm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:10 +03:00
Johannes Berg
b2d81db7b3 iwlwifi: mvm: clean up FIFO definitions
Move all FIFO definitions together into the firmware API
header file and use the same enum/naming scheme for the
command FIFO.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:10 +03:00
Johannes Berg
3dfd3a97c8 iwlwifi: mvm: correct firmware disassoc command sequence
The firmware would like to have a MAC context (unassoc)
before the AP station is removed (we do this) but would
like to keep the BSSID until after it is removed, so we
need to send two commands - one with the BSSID before
and one without the BSSID after.

In order to do this, we need to store the BSSID as it
will have been cleared by mac80211 by the time we get
notified of the disassociation. Also pass it around as
an override to the various functions needing it, and
keep taking it from the mac80211 data otherwise. This
avoids having to keep track of the BSSID in all modes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:09 +03:00
Luciano Coelho
0ce04ce797 iwlwifi: mvm: set the TX disable bit when doing a chanctx switch
During a channel switch we should tell the firmware to disable TX
temporarily and re-enable it after the switch is done.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:08 +03:00
Johannes Berg
8b4139dc9f iwlwifi: add Intel Mobile Communications copyright
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.

For files that we have modified in the time since the change,
add the proper copyright notice now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:07 +03:00
Avri Altman
002a9e2677 iwlwifi: trans: configure the scheduler enable register
Currently the firmware is handling this, but that is wrong as it then
needs to assume a certain command queue, therefore this should be in
the driver; add it here so it can be removed from the firmware in the
future.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:06 +03:00
Johannes Berg
64ba893066 iwlwifi: trans: make aggregation explicit for TX queue handling
Currently a valid sta_id is assumed to mean that the queue is
meant to also be aggregated, but that assumption will not be
true in the future, so don't make it in the lower level but
only in the inline wrapper.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:06 +03:00