1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
4 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
5 */
6#ifndef _FNIC_IO_H_
7#define _FNIC_IO_H_
8
9#include <scsi/fc/fc_fcp.h>
10
11#define FNIC_DFLT_SG_DESC_CNT  32
12#define FNIC_MAX_SG_DESC_CNT        256     /* Maximum descriptors per sgl */
13#define FNIC_SG_DESC_ALIGN          16      /* Descriptor address alignment */
14
15struct host_sg_desc {
16	__le64 addr;
17	__le32 len;
18	u32 _resvd;
19};
20
21struct fnic_dflt_sgl_list {
22	struct host_sg_desc sg_desc[FNIC_DFLT_SG_DESC_CNT];
23};
24
25struct fnic_sgl_list {
26	struct host_sg_desc sg_desc[FNIC_MAX_SG_DESC_CNT];
27};
28
29enum fnic_sgl_list_type {
30	FNIC_SGL_CACHE_DFLT = 0,  /* cache with default size sgl */
31	FNIC_SGL_CACHE_MAX,       /* cache with max size sgl */
32	FNIC_SGL_NUM_CACHES       /* number of sgl caches */
33};
34
35enum fnic_ioreq_state {
36	FNIC_IOREQ_NOT_INITED = 0,
37	FNIC_IOREQ_CMD_PENDING,
38	FNIC_IOREQ_ABTS_PENDING,
39	FNIC_IOREQ_ABTS_COMPLETE,
40	FNIC_IOREQ_CMD_COMPLETE,
41};
42
43struct fnic_io_req {
44	struct host_sg_desc *sgl_list; /* sgl list */
45	void *sgl_list_alloc; /* sgl list address used for free */
46	dma_addr_t sense_buf_pa; /* dma address for sense buffer*/
47	dma_addr_t sgl_list_pa;	/* dma address for sgl list */
48	u16 sgl_cnt;
49	u8 sgl_type; /* device DMA descriptor list type */
50	u8 io_completed:1; /* set to 1 when fw completes IO */
51	u32 port_id; /* remote port DID */
52	unsigned long start_time; /* in jiffies */
53	struct completion *abts_done; /* completion for abts */
54	struct completion *dr_done; /* completion for device reset */
55	unsigned int tag;
56	struct scsi_cmnd *sc; /* midlayer's cmd pointer */
57};
58
59enum fnic_port_speeds {
60	DCEM_PORTSPEED_NONE = 0,
61	DCEM_PORTSPEED_1G    = 1000,
62	DCEM_PORTSPEED_10G   = 10000,
63	DCEM_PORTSPEED_20G   = 20000,
64	DCEM_PORTSPEED_25G   = 25000,
65	DCEM_PORTSPEED_40G   = 40000,
66	DCEM_PORTSPEED_4x10G = 41000,
67	DCEM_PORTSPEED_100G  = 100000,
68};
69#endif /* _FNIC_IO_H_ */
70