WIP FPC-III support
[linux/fpc-iii.git] / drivers / net / ethernet / intel / ixgbe / ixgbe_fcoe.h
blob724f5382329f7170c572131a2048ffa40366ddde
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
4 #ifndef _IXGBE_FCOE_H
5 #define _IXGBE_FCOE_H
7 #include <scsi/fc/fc_fs.h>
8 #include <scsi/fc/fc_fcoe.h>
10 /* shift bits within STAT fo FCSTAT */
11 #define IXGBE_RXDADV_FCSTAT_SHIFT 4
13 /* ddp user buffer */
14 #define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */
15 #define IXGBE_FCPTR_ALIGN 16
16 #define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
17 #define IXGBE_FCBUFF_4KB 0x0
18 #define IXGBE_FCBUFF_8KB 0x1
19 #define IXGBE_FCBUFF_16KB 0x2
20 #define IXGBE_FCBUFF_64KB 0x3
21 #define IXGBE_FCBUFF_MAX 65536 /* 64KB max */
22 #define IXGBE_FCBUFF_MIN 4096 /* 4KB min */
23 #define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */
24 #define IXGBE_FCOE_DDP_MAX_X550 2048 /* 11 bits xid */
26 /* Default traffic class to use for FCoE */
27 #define IXGBE_FCOE_DEFTC 3
29 /* fcerr */
30 #define IXGBE_FCERR_BADCRC 0x00100000
32 /* FCoE DDP for target mode */
33 #define __IXGBE_FCOE_TARGET 1
35 struct ixgbe_fcoe_ddp {
36 int len;
37 u32 err;
38 unsigned int sgc;
39 struct scatterlist *sgl;
40 dma_addr_t udp;
41 u64 *udl;
42 struct dma_pool *pool;
45 /* per cpu variables */
46 struct ixgbe_fcoe_ddp_pool {
47 struct dma_pool *pool;
48 u64 noddp;
49 u64 noddp_ext_buff;
52 struct ixgbe_fcoe {
53 struct ixgbe_fcoe_ddp_pool __percpu *ddp_pool;
54 atomic_t refcnt;
55 spinlock_t lock;
56 struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX_X550];
57 void *extra_ddp_buffer;
58 dma_addr_t extra_ddp_buffer_dma;
59 unsigned long mode;
60 u8 up;
63 #endif /* _IXGBE_FCOE_H */