1 /******************************************************************************* 2 3 Intel 10 Gigabit PCI Express Linux driver 4 Copyright(c) 1999 - 2012 Intel Corporation. 5 6 This program is free software; you can redistribute it and/or modify it 7 under the terms and conditions of the GNU General Public License, 8 version 2, as published by the Free Software Foundation. 9 10 This program is distributed in the hope it will be useful, but WITHOUT 11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 more details. 14 15 You should have received a copy of the GNU General Public License along with 16 this program; if not, write to the Free Software Foundation, Inc., 17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 18 19 The full GNU General Public License is included in this distribution in 20 the file called "COPYING". 21 22 Contact Information: 23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 25 26 *******************************************************************************/ 27 28 #ifndef _IXGBE_FCOE_H 29 #define _IXGBE_FCOE_H 30 31 #include <scsi/fc/fc_fs.h> 32 #include <scsi/fc/fc_fcoe.h> 33 34 /* shift bits within STAT fo FCSTAT */ 35 #define IXGBE_RXDADV_FCSTAT_SHIFT 4 36 37 /* ddp user buffer */ 38 #define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */ 39 #define IXGBE_FCPTR_ALIGN 16 40 #define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t)) 41 #define IXGBE_FCBUFF_4KB 0x0 42 #define IXGBE_FCBUFF_8KB 0x1 43 #define IXGBE_FCBUFF_16KB 0x2 44 #define IXGBE_FCBUFF_64KB 0x3 45 #define IXGBE_FCBUFF_MAX 65536 /* 64KB max */ 46 #define IXGBE_FCBUFF_MIN 4096 /* 4KB min */ 47 #define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */ 48 49 /* Default traffic class to use for FCoE */ 50 #define IXGBE_FCOE_DEFTC 3 51 52 /* fcerr */ 53 #define IXGBE_FCERR_BADCRC 0x00100000 54 55 /* FCoE DDP for target mode */ 56 #define __IXGBE_FCOE_TARGET 1 57 58 struct ixgbe_fcoe_ddp { 59 int len; 60 u32 err; 61 unsigned int sgc; 62 struct scatterlist *sgl; 63 dma_addr_t udp; 64 u64 *udl; 65 struct dma_pool *pool; 66 }; 67 68 struct ixgbe_fcoe { 69 struct dma_pool **pool; 70 atomic_t refcnt; 71 spinlock_t lock; 72 struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX]; 73 unsigned char *extra_ddp_buffer; 74 dma_addr_t extra_ddp_buffer_dma; 75 unsigned long mode; 76 u64 __percpu *pcpu_noddp; 77 u64 __percpu *pcpu_noddp_ext_buff; 78 #ifdef CONFIG_IXGBE_DCB 79 u8 up; 80 #endif 81 }; 82 83 #endif /* _IXGBE_FCOE_H */ 84