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linux-pinenote/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h

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ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
/*******************************************************************************
Intel 10 Gigabit PCI Express Linux driver
ixgbe: update copyright to 2012 New year so bump the copyright date. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-01-06 03:24:16 +00:00
Copyright(c) 1999 - 2012 Intel Corporation.
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
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
*******************************************************************************/
#ifndef _IXGBE_FCOE_H
#define _IXGBE_FCOE_H
ixgbe: Include offloaded FCoE data into total rx/tx statistics for 82599 Include offloaded FCoE data into total rx/tx statistics for 82599 so they are properly reflected by ethtool or ifconfig. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-08 14:38:44 +00:00
#include <scsi/fc/fc_fs.h>
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
#include <scsi/fc/fc_fcoe.h>
/* shift bits within STAT fo FCSTAT */
#define IXGBE_RXDADV_FCSTAT_SHIFT 4
/* ddp user buffer */
#define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */
#define IXGBE_FCPTR_ALIGN 16
#define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
#define IXGBE_FCBUFF_4KB 0x0
#define IXGBE_FCBUFF_8KB 0x1
#define IXGBE_FCBUFF_16KB 0x2
#define IXGBE_FCBUFF_64KB 0x3
#define IXGBE_FCBUFF_MAX 65536 /* 64KB max */
#define IXGBE_FCBUFF_MIN 4096 /* 4KB min */
#define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */
ixgbe: Add support for dcbnl_rtnl_ops.setapp/getapp Add support for dcbnl_rtnl_ops.setapp/getapp to set or get the current user priority bitmap for the given application protocol. Currently, 82599 only supports setapp/getapp for Fiber Channel over Ethernet (FCoE) protocol. Signed-off-by: Yi Zou <yi.zou@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>
2009-08-31 12:34:28 +00:00
/* Default traffic class to use for FCoE */
#define IXGBE_FCOE_DEFTC 3
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
/* fcerr */
#define IXGBE_FCERR_BADCRC 0x00100000
ixgbe: add support to FCoE DDP in target mode Add support to the ndo_fcoe_ddp_target() to allow the Intel 82599 device to also provide DDP offload capability when the upper FCoE protocol stack is operating as a target. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Kiran Patil <kiran.patil@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-01 07:22:16 +00:00
/* FCoE DDP for target mode */
#define __IXGBE_FCOE_TARGET 1
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
struct ixgbe_fcoe_ddp {
int len;
u32 err;
unsigned int sgc;
struct scatterlist *sgl;
dma_addr_t udp;
ixgbe: Add infrastructure code for FCoE large receive offload to 82599 This adds infrastructure code for FCoE Rx side offload feature to 82599, which provides large receive offload for FCoE by Direct Data Placement (DDP). The ixgbe_fcoe_ddp_get() and ixgbe_fcoe_ddp_put() pair corresponds to the netdev support to FCoE by the function pointers provided in net_device_ops as ndo_fcoe_ddp_setup and ndo_fcoe_ddp_done. The implementation of these in ixgbe is shown in the next patch. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:11:29 +00:00
u64 *udl;
ixgbe: Drop references to deprecated pci_ DMA api and instead use dma_ API The networking side of the code had already been updated to use dma_ calls instead of the old pci_ calls. However it looks like the FCoE code was never updated. This change goes through and moves everything from the pci APIs to the dma APIs. 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>
2012-05-05 05:32:32 +00:00
struct dma_pool *pool;
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
};
ixgbe: Merge all FCoE percpu values into a single structure This change merges the 2 statistics values for noddp and noddp_ext_buff and the dma_pool into a single structure that can be allocated per CPU. The advantages to this are several fold. First we only need to do one alloc_percpu call now instead of 3, so that means less overhead for handling memory allocation failures. Secondly in the case of ixgbe_fcoe_ddp_setup we only need to call get_cpu once which makes things a bit cleaner since we can drop a put_cpu() from the exception path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-05 17:14:28 +00:00
/* per cpu variables */
struct ixgbe_fcoe_ddp_pool {
struct dma_pool *pool;
u64 noddp;
u64 noddp_ext_buff;
};
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
struct ixgbe_fcoe {
ixgbe: Merge all FCoE percpu values into a single structure This change merges the 2 statistics values for noddp and noddp_ext_buff and the dma_pool into a single structure that can be allocated per CPU. The advantages to this are several fold. First we only need to do one alloc_percpu call now instead of 3, so that means less overhead for handling memory allocation failures. Secondly in the case of ixgbe_fcoe_ddp_setup we only need to call get_cpu once which makes things a bit cleaner since we can drop a put_cpu() from the exception path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-05 17:14:28 +00:00
struct ixgbe_fcoe_ddp_pool __percpu *ddp_pool;
ixgbe: add a refcnt when turning on/off FCoE offload capability The FCoE offload is enabled/disabled per adapter, but upper FCoE protocol stack could have multiple FCoE instances created on the same physical network interface, e.g., FCoE on multiple VLAN interfaces on the same physical network interface. In this case we want to turn on FCoE offload at the first request from ndo_fcoe_enable() but only turn off FCoE offload at the very last call to ndo_fcoe_disable(). This is fixed by adding a refcnt in the per adapter FCoE structure and tear down FCoE offload when refcnt decrements to zero. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-20 23:00:30 +00:00
atomic_t refcnt;
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
spinlock_t lock;
struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX];
ixgbe: Make FCoE allocation and configuration closer to how rings work This patch changes the behavior of the FCoE configuration so that it is much closer to how the main body of the ixgbe driver works for ring allocation. The first piece is the ixgbe_fcoe_ddp_enable/disable calls. These allocate the percpu values and if successful set the fcoe_ddp_xid value indicating that we can support DDP. The next piece is the ixgbe_setup/free_ddp_resources calls. These are called on open/close and will allocate and free the DMA pools. Finally ixgbe_configure_fcoe is now just register configuration. It can go through and enable the registers for the FCoE redirection offload, and FIP configuration without any interference from the DDP pool allocation. The net result of all this is two fold. First it adds a certain amount of exception handling. So for example if ixgbe_setup_fcoe_resources fails we will actually generate an error in open and refuse to bring up the interface. Secondly it provides a much more graceful failure case than the previous model which would skip setting up the registers for FCoE on failure to allocate DDP resources leaving no Rx functionality enabled instead of just disabling DDP. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-05 05:32:47 +00:00
void *extra_ddp_buffer;
ixgbe: work around for DDP last buffer size A HW limitation was recently discovered where the last buffer in a DDP offload cannot be a full buffer size in length. Fix the issue with a work around by adding another buffer with size = 1. Signed-off-by: Amir Hanania <amir.hanania@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-15 09:11:31 +00:00
dma_addr_t extra_ddp_buffer_dma;
ixgbe: setup per CPU PCI pool for FCoE DDP Currently single PCI pool used across all CPUs and that doesn't scales up as number of CPU increases, so this patch adds per CPU PCI pool to setup udl and that aligns well from FCoE stack as that already has per CPU exch locking. Adds per CPU PCI alloc setup and free in ixgbe_fcoe_ddp_pools_alloc and ixgbe_fcoe_ddp_pools_free, use CPU specific pool during DDP setup. Re-arranged ixgbe_fcoe struct to have fewer holes along with adding pools ptr using pahole. Signed-off-by: Vasu Dev <vasu.dev@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-11 05:41:46 +00:00
unsigned long mode;
#ifdef CONFIG_IXGBE_DCB
u8 up;
#endif
ixgbe: Add FCoE feature header to 82599 This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes the defines and structures required by the ixgbe driver to support various offload features in 82599 for Fiber Channel over Ethernet (FCoE). These offloads features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion, FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP) for large receive. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13 13:10:01 +00:00
};
#endif /* _IXGBE_FCOE_H */
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