1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Linux network driver for QLogic BR-series Converged Network Adapter.
4 */
5/*
6 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
7 * Copyright (c) 2014-2015 QLogic Corporation
8 * All rights reserved
9 * www.qlogic.com
10 */
11
12#ifndef __BFA_MSGQ_H__
13#define __BFA_MSGQ_H__
14
15#include "bfa_defs.h"
16#include "bfi.h"
17#include "bfa_ioc.h"
18#include "bfa_cs.h"
19
20#define BFA_MSGQ_FREE_CNT(_q) \
21 (((_q)->consumer_index - (_q)->producer_index - 1) & ((_q)->depth - 1))
22
23#define BFA_MSGQ_INDX_ADD(_q_indx, _qe_num, _q_depth) \
24 ((_q_indx) = (((_q_indx) + (_qe_num)) & ((_q_depth) - 1)))
25
26#define BFA_MSGQ_CMDQ_NUM_ENTRY 128
27#define BFA_MSGQ_CMDQ_SIZE \
28 (BFI_MSGQ_CMD_ENTRY_SIZE * BFA_MSGQ_CMDQ_NUM_ENTRY)
29
30#define BFA_MSGQ_RSPQ_NUM_ENTRY 128
31#define BFA_MSGQ_RSPQ_SIZE \
32 (BFI_MSGQ_RSP_ENTRY_SIZE * BFA_MSGQ_RSPQ_NUM_ENTRY)
33
34#define bfa_msgq_cmd_set(_cmd, _cbfn, _cbarg, _msg_size, _msg_hdr) \
35do { \
36 (_cmd)->cbfn = (_cbfn); \
37 (_cmd)->cbarg = (_cbarg); \
38 (_cmd)->msg_size = (_msg_size); \
39 (_cmd)->msg_hdr = (_msg_hdr); \
40} while (0)
41
42struct bfa_msgq;
43
44typedef void (*bfa_msgq_cmdcbfn_t)(void *cbarg, enum bfa_status status);
45
46struct bfa_msgq_cmd_entry {
47 struct list_head qe;
48 bfa_msgq_cmdcbfn_t cbfn;
49 void *cbarg;
50 size_t msg_size;
51 struct bfi_msgq_mhdr *msg_hdr;
52};
53
54enum bfa_msgq_cmdq_flags {
55 BFA_MSGQ_CMDQ_F_DB_UPDATE = 1,
56};
57
58enum cmdq_event;
59
60struct bfa_msgq_cmdq {
61 void (*fsm)(struct bfa_msgq_cmdq *s, enum cmdq_event e);
62 enum bfa_msgq_cmdq_flags flags;
63
64 u16 producer_index;
65 u16 consumer_index;
66 u16 depth; /* FW Q depth is 16 bits */
67 struct bfa_dma addr;
68 struct bfa_mbox_cmd dbell_mb;
69
70 u16 token;
71 int offset;
72 int bytes_to_copy;
73 struct bfa_mbox_cmd copy_mb;
74
75 struct list_head pending_q; /* pending command queue */
76
77 struct bfa_msgq *msgq;
78};
79
80enum bfa_msgq_rspq_flags {
81 BFA_MSGQ_RSPQ_F_DB_UPDATE = 1,
82};
83
84typedef void (*bfa_msgq_mcfunc_t)(void *cbarg, struct bfi_msgq_mhdr *mhdr);
85
86enum rspq_event;
87
88struct bfa_msgq_rspq {
89 void (*fsm)(struct bfa_msgq_rspq *s, enum rspq_event e);
90 enum bfa_msgq_rspq_flags flags;
91
92 u16 producer_index;
93 u16 consumer_index;
94 u16 depth; /* FW Q depth is 16 bits */
95 struct bfa_dma addr;
96 struct bfa_mbox_cmd dbell_mb;
97
98 int nmclass;
99 struct {
100 bfa_msgq_mcfunc_t cbfn;
101 void *cbarg;
102 } rsphdlr[BFI_MC_MAX];
103
104 struct bfa_msgq *msgq;
105};
106
107struct bfa_msgq {
108 struct bfa_msgq_cmdq cmdq;
109 struct bfa_msgq_rspq rspq;
110
111 struct bfa_wc init_wc;
112 struct bfa_mbox_cmd init_mb;
113
114 struct bfa_ioc_notify ioc_notify;
115 struct bfa_ioc *ioc;
116};
117
118u32 bfa_msgq_meminfo(void);
119void bfa_msgq_memclaim(struct bfa_msgq *msgq, u8 *kva, u64 pa);
120void bfa_msgq_attach(struct bfa_msgq *msgq, struct bfa_ioc *ioc);
121void bfa_msgq_regisr(struct bfa_msgq *msgq, enum bfi_mclass mc,
122 bfa_msgq_mcfunc_t cbfn, void *cbarg);
123void bfa_msgq_cmd_post(struct bfa_msgq *msgq,
124 struct bfa_msgq_cmd_entry *cmd);
125void bfa_msgq_rsp_copy(struct bfa_msgq *msgq, u8 *buf, size_t buf_len);
126
127#endif
128

source code of linux/drivers/net/ethernet/brocade/bna/bfa_msgq.h