forked from luck/tmp_suning_uos_patched
dadbe85ac4
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>
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*******************************************************************************
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Intel 10 Gigabit PCI Express Linux driver
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Copyright(c) 1999 - 2011 Intel Corporation.
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information:
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e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#ifndef _IXGBE_FCOE_H
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#define _IXGBE_FCOE_H
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#include <scsi/fc/fc_fs.h>
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#include <scsi/fc/fc_fcoe.h>
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/* shift bits within STAT fo FCSTAT */
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#define IXGBE_RXDADV_FCSTAT_SHIFT 4
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/* ddp user buffer */
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#define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */
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#define IXGBE_FCPTR_ALIGN 16
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#define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
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#define IXGBE_FCBUFF_4KB 0x0
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#define IXGBE_FCBUFF_8KB 0x1
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#define IXGBE_FCBUFF_16KB 0x2
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#define IXGBE_FCBUFF_64KB 0x3
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#define IXGBE_FCBUFF_MAX 65536 /* 64KB max */
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#define IXGBE_FCBUFF_MIN 4096 /* 4KB min */
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#define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */
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/* Default traffic class to use for FCoE */
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#define IXGBE_FCOE_DEFTC 3
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/* fcerr */
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#define IXGBE_FCERR_BADCRC 0x00100000
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/* FCoE DDP for target mode */
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#define __IXGBE_FCOE_TARGET 1
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struct ixgbe_fcoe_ddp {
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int len;
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u32 err;
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unsigned int sgc;
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struct scatterlist *sgl;
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dma_addr_t udp;
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u64 *udl;
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struct pci_pool *pool;
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};
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struct ixgbe_fcoe {
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struct pci_pool **pool;
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atomic_t refcnt;
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spinlock_t lock;
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struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX];
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unsigned char *extra_ddp_buffer;
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dma_addr_t extra_ddp_buffer_dma;
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unsigned long mode;
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#ifdef CONFIG_IXGBE_DCB
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u8 tc;
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u8 up;
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#endif
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};
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#endif /* _IXGBE_FCOE_H */
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