162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* Copyright(c) 1999 - 2018 Intel Corporation. */ 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci#ifndef _IXGBE_FCOE_H 562306a36Sopenharmony_ci#define _IXGBE_FCOE_H 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <scsi/fc/fc_fs.h> 862306a36Sopenharmony_ci#include <scsi/fc/fc_fcoe.h> 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci/* shift bits within STAT fo FCSTAT */ 1162306a36Sopenharmony_ci#define IXGBE_RXDADV_FCSTAT_SHIFT 4 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci/* ddp user buffer */ 1462306a36Sopenharmony_ci#define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */ 1562306a36Sopenharmony_ci#define IXGBE_FCPTR_ALIGN 16 1662306a36Sopenharmony_ci#define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t)) 1762306a36Sopenharmony_ci#define IXGBE_FCBUFF_4KB 0x0 1862306a36Sopenharmony_ci#define IXGBE_FCBUFF_8KB 0x1 1962306a36Sopenharmony_ci#define IXGBE_FCBUFF_16KB 0x2 2062306a36Sopenharmony_ci#define IXGBE_FCBUFF_64KB 0x3 2162306a36Sopenharmony_ci#define IXGBE_FCBUFF_MAX 65536 /* 64KB max */ 2262306a36Sopenharmony_ci#define IXGBE_FCBUFF_MIN 4096 /* 4KB min */ 2362306a36Sopenharmony_ci#define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */ 2462306a36Sopenharmony_ci#define IXGBE_FCOE_DDP_MAX_X550 2048 /* 11 bits xid */ 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci/* Default traffic class to use for FCoE */ 2762306a36Sopenharmony_ci#define IXGBE_FCOE_DEFTC 3 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci/* fcerr */ 3062306a36Sopenharmony_ci#define IXGBE_FCERR_BADCRC 0x00100000 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci/* FCoE DDP for target mode */ 3362306a36Sopenharmony_ci#define __IXGBE_FCOE_TARGET 1 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_cistruct ixgbe_fcoe_ddp { 3662306a36Sopenharmony_ci int len; 3762306a36Sopenharmony_ci u32 err; 3862306a36Sopenharmony_ci unsigned int sgc; 3962306a36Sopenharmony_ci struct scatterlist *sgl; 4062306a36Sopenharmony_ci dma_addr_t udp; 4162306a36Sopenharmony_ci u64 *udl; 4262306a36Sopenharmony_ci struct dma_pool *pool; 4362306a36Sopenharmony_ci}; 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ci/* per cpu variables */ 4662306a36Sopenharmony_cistruct ixgbe_fcoe_ddp_pool { 4762306a36Sopenharmony_ci struct dma_pool *pool; 4862306a36Sopenharmony_ci u64 noddp; 4962306a36Sopenharmony_ci u64 noddp_ext_buff; 5062306a36Sopenharmony_ci}; 5162306a36Sopenharmony_ci 5262306a36Sopenharmony_cistruct ixgbe_fcoe { 5362306a36Sopenharmony_ci struct ixgbe_fcoe_ddp_pool __percpu *ddp_pool; 5462306a36Sopenharmony_ci atomic_t refcnt; 5562306a36Sopenharmony_ci spinlock_t lock; 5662306a36Sopenharmony_ci struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX_X550]; 5762306a36Sopenharmony_ci void *extra_ddp_buffer; 5862306a36Sopenharmony_ci dma_addr_t extra_ddp_buffer_dma; 5962306a36Sopenharmony_ci unsigned long mode; 6062306a36Sopenharmony_ci u8 up; 6162306a36Sopenharmony_ci}; 6262306a36Sopenharmony_ci 6362306a36Sopenharmony_ci#endif /* _IXGBE_FCOE_H */ 64