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gerrit-public.fairphone.software / kernel / msm-5.4 / 37689010da28c6dfd9f59e60d7f42c47b775171c / . / drivers / net / ethernet / intel / ixgbe / ixgbe_fcoe.h
blob: 38385876effb0c9a3d8659afebc5f469575f55f4 [file] [log] [blame]
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]1/*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
Don Skidmore434c5e32013-01-08 05:02:28 +0000[diff] [blame]4 Copyright(c) 1999 - 2013 Intel Corporation.
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]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:
Jacob Kellerb89aae72014-02-22 01:23:50 +0000[diff] [blame]23 Linux NICS <linux.nics@intel.com>
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26
27*******************************************************************************/
28
29#ifndef _IXGBE_FCOE_H
30#define _IXGBE_FCOE_H
31
Yi Zou3d8fd382009-06-08 14:38:44 +0000[diff] [blame]32#include <scsi/fc/fc_fs.h>
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]33#include <scsi/fc/fc_fcoe.h>
34
35/* shift bits within STAT fo FCSTAT */
36#define IXGBE_RXDADV_FCSTAT_SHIFT 4
37
38/* ddp user buffer */
39#define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */
40#define IXGBE_FCPTR_ALIGN 16
41#define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
42#define IXGBE_FCBUFF_4KB 0x0
43#define IXGBE_FCBUFF_8KB 0x1
44#define IXGBE_FCBUFF_16KB 0x2
45#define IXGBE_FCBUFF_64KB 0x3
46#define IXGBE_FCBUFF_MAX 65536 /* 64KB max */
47#define IXGBE_FCBUFF_MIN 4096 /* 4KB min */
48#define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */
Vasu Devea412012015-04-09 22:03:23 -0700[diff] [blame]49#define IXGBE_FCOE_DDP_MAX_X550 2048 /* 11 bits xid */
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]50
Yi Zou6ee16522009-08-31 12:34:28 +0000[diff] [blame]51/* Default traffic class to use for FCoE */
52#define IXGBE_FCOE_DEFTC 3
53
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]54/* fcerr */
55#define IXGBE_FCERR_BADCRC 0x00100000
56
Yi Zou68a683c2011-02-01 07:22:16 +0000[diff] [blame]57/* FCoE DDP for target mode */
58#define __IXGBE_FCOE_TARGET 1
59
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]60struct ixgbe_fcoe_ddp {
61 int len;
62 u32 err;
63 unsigned int sgc;
64 struct scatterlist *sgl;
65 dma_addr_t udp;
Yi Zoud0ed8932009-05-13 13:11:29 +0000[diff] [blame]66 u64 *udl;
Alexander Duyck1bf91cd2012-05-05 05:32:32 +0000[diff] [blame]67 struct dma_pool *pool;
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]68};
69
Alexander Duyck5a1ee272012-05-05 17:14:28 +0000[diff] [blame]70/* per cpu variables */
71struct ixgbe_fcoe_ddp_pool {
72 struct dma_pool *pool;
73 u64 noddp;
74 u64 noddp_ext_buff;
75};
76
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]77struct ixgbe_fcoe {
Alexander Duyck5a1ee272012-05-05 17:14:28 +0000[diff] [blame]78 struct ixgbe_fcoe_ddp_pool __percpu *ddp_pool;
Vasu Devdadbe852011-05-11 05:41:46 +0000[diff] [blame]79 atomic_t refcnt;
80 spinlock_t lock;
Vasu Devea412012015-04-09 22:03:23 -0700[diff] [blame]81 struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX_X550];
Alexander Duyck7c8ae652012-05-05 05:32:47 +0000[diff] [blame]82 void *extra_ddp_buffer;
Vasu Devdadbe852011-05-11 05:41:46 +0000[diff] [blame]83 dma_addr_t extra_ddp_buffer_dma;
84 unsigned long mode;
Yi Zou61a0f422009-12-03 11:32:22 +0000[diff] [blame]85 u8 up;
Yi Zoue92cbea2009-05-13 13:10:01 +0000[diff] [blame]86};
87
88#endif /* _IXGBE_FCOE_H */