1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Huawei HiNIC PCI Express Linux driver |
4 | * Copyright(c) 2017 Huawei Technologies Co., Ltd |
5 | */ |
6 | |
7 | #ifndef HINIC_CMDQ_H |
8 | #define HINIC_CMDQ_H |
9 | |
10 | #include <linux/types.h> |
11 | #include <linux/spinlock.h> |
12 | #include <linux/completion.h> |
13 | #include <linux/pci.h> |
14 | |
15 | #include "hinic_hw_if.h" |
16 | #include "hinic_hw_wq.h" |
17 | |
18 | #define HINIC_CMDQ_CTXT_CURR_WQE_PAGE_PFN_SHIFT 0 |
19 | #define HINIC_CMDQ_CTXT_EQ_ID_SHIFT 56 |
20 | #define HINIC_CMDQ_CTXT_CEQ_ARM_SHIFT 61 |
21 | #define HINIC_CMDQ_CTXT_CEQ_EN_SHIFT 62 |
22 | #define HINIC_CMDQ_CTXT_WRAPPED_SHIFT 63 |
23 | |
24 | #define HINIC_CMDQ_CTXT_CURR_WQE_PAGE_PFN_MASK 0xFFFFFFFFFFFFF |
25 | #define HINIC_CMDQ_CTXT_EQ_ID_MASK 0x1F |
26 | #define HINIC_CMDQ_CTXT_CEQ_ARM_MASK 0x1 |
27 | #define HINIC_CMDQ_CTXT_CEQ_EN_MASK 0x1 |
28 | #define HINIC_CMDQ_CTXT_WRAPPED_MASK 0x1 |
29 | |
30 | #define HINIC_CMDQ_CTXT_PAGE_INFO_SET(val, member) \ |
31 | (((u64)(val) & HINIC_CMDQ_CTXT_##member##_MASK) \ |
32 | << HINIC_CMDQ_CTXT_##member##_SHIFT) |
33 | |
34 | #define HINIC_CMDQ_CTXT_PAGE_INFO_GET(val, member) \ |
35 | (((u64)(val) >> HINIC_CMDQ_CTXT_##member##_SHIFT) \ |
36 | & HINIC_CMDQ_CTXT_##member##_MASK) |
37 | |
38 | #define HINIC_CMDQ_CTXT_PAGE_INFO_CLEAR(val, member) \ |
39 | ((val) & (~((u64)HINIC_CMDQ_CTXT_##member##_MASK \ |
40 | << HINIC_CMDQ_CTXT_##member##_SHIFT))) |
41 | |
42 | #define HINIC_CMDQ_CTXT_WQ_BLOCK_PFN_SHIFT 0 |
43 | #define HINIC_CMDQ_CTXT_CI_SHIFT 52 |
44 | |
45 | #define HINIC_CMDQ_CTXT_WQ_BLOCK_PFN_MASK 0xFFFFFFFFFFFFF |
46 | #define HINIC_CMDQ_CTXT_CI_MASK 0xFFF |
47 | |
48 | #define HINIC_CMDQ_CTXT_BLOCK_INFO_SET(val, member) \ |
49 | (((u64)(val) & HINIC_CMDQ_CTXT_##member##_MASK) \ |
50 | << HINIC_CMDQ_CTXT_##member##_SHIFT) |
51 | |
52 | #define HINIC_CMDQ_CTXT_BLOCK_INFO_GET(val, member) \ |
53 | (((u64)(val) >> HINIC_CMDQ_CTXT_##member##_SHIFT) \ |
54 | & HINIC_CMDQ_CTXT_##member##_MASK) |
55 | |
56 | #define HINIC_CMDQ_CTXT_BLOCK_INFO_CLEAR(val, member) \ |
57 | ((val) & (~((u64)HINIC_CMDQ_CTXT_##member##_MASK \ |
58 | << HINIC_CMDQ_CTXT_##member##_SHIFT))) |
59 | |
60 | #define HINIC_SAVED_DATA_ARM_SHIFT 31 |
61 | |
62 | #define HINIC_SAVED_DATA_ARM_MASK 0x1 |
63 | |
64 | #define HINIC_SAVED_DATA_SET(val, member) \ |
65 | (((u32)(val) & HINIC_SAVED_DATA_##member##_MASK) \ |
66 | << HINIC_SAVED_DATA_##member##_SHIFT) |
67 | |
68 | #define HINIC_SAVED_DATA_GET(val, member) \ |
69 | (((val) >> HINIC_SAVED_DATA_##member##_SHIFT) \ |
70 | & HINIC_SAVED_DATA_##member##_MASK) |
71 | |
72 | #define HINIC_SAVED_DATA_CLEAR(val, member) \ |
73 | ((val) & (~(HINIC_SAVED_DATA_##member##_MASK \ |
74 | << HINIC_SAVED_DATA_##member##_SHIFT))) |
75 | |
76 | #define HINIC_CMDQ_DB_INFO_HI_PROD_IDX_SHIFT 0 |
77 | #define HINIC_CMDQ_DB_INFO_PATH_SHIFT 23 |
78 | #define HINIC_CMDQ_DB_INFO_CMDQ_TYPE_SHIFT 24 |
79 | #define HINIC_CMDQ_DB_INFO_DB_TYPE_SHIFT 27 |
80 | |
81 | #define HINIC_CMDQ_DB_INFO_HI_PROD_IDX_MASK 0xFF |
82 | #define HINIC_CMDQ_DB_INFO_PATH_MASK 0x1 |
83 | #define HINIC_CMDQ_DB_INFO_CMDQ_TYPE_MASK 0x7 |
84 | #define HINIC_CMDQ_DB_INFO_DB_TYPE_MASK 0x1F |
85 | |
86 | #define HINIC_CMDQ_DB_INFO_SET(val, member) \ |
87 | (((u32)(val) & HINIC_CMDQ_DB_INFO_##member##_MASK) \ |
88 | << HINIC_CMDQ_DB_INFO_##member##_SHIFT) |
89 | |
90 | #define HINIC_CMDQ_BUF_SIZE 2048 |
91 | |
92 | #define HINIC_CMDQ_BUF_HW_RSVD 8 |
93 | #define HINIC_CMDQ_MAX_DATA_SIZE (HINIC_CMDQ_BUF_SIZE - \ |
94 | HINIC_CMDQ_BUF_HW_RSVD) |
95 | |
96 | enum hinic_cmdq_type { |
97 | HINIC_CMDQ_SYNC, |
98 | |
99 | HINIC_MAX_CMDQ_TYPES, |
100 | }; |
101 | |
102 | enum hinic_set_arm_qtype { |
103 | HINIC_SET_ARM_CMDQ, |
104 | }; |
105 | |
106 | enum hinic_cmd_ack_type { |
107 | HINIC_CMD_ACK_TYPE_CMDQ, |
108 | }; |
109 | |
110 | struct hinic_cmdq_buf { |
111 | void *buf; |
112 | dma_addr_t dma_addr; |
113 | size_t size; |
114 | }; |
115 | |
116 | struct hinic_cmdq_arm_bit { |
117 | u32 q_type; |
118 | u32 q_id; |
119 | }; |
120 | |
121 | struct hinic_cmdq_ctxt_info { |
122 | u64 curr_wqe_page_pfn; |
123 | u64 wq_block_pfn; |
124 | }; |
125 | |
126 | struct hinic_cmdq_ctxt { |
127 | u8 status; |
128 | u8 version; |
129 | u8 rsvd0[6]; |
130 | |
131 | u16 func_idx; |
132 | u8 cmdq_type; |
133 | u8 ppf_idx; |
134 | |
135 | u8 rsvd2[4]; |
136 | |
137 | struct hinic_cmdq_ctxt_info ctxt_info; |
138 | }; |
139 | |
140 | struct hinic_cmdq { |
141 | struct hinic_hwdev *hwdev; |
142 | |
143 | struct hinic_wq *wq; |
144 | |
145 | enum hinic_cmdq_type cmdq_type; |
146 | int wrapped; |
147 | |
148 | /* Lock for keeping the doorbell order */ |
149 | spinlock_t cmdq_lock; |
150 | |
151 | struct completion **done; |
152 | int **errcode; |
153 | |
154 | /* doorbell area */ |
155 | void __iomem *db_base; |
156 | }; |
157 | |
158 | struct hinic_cmdqs { |
159 | struct hinic_hwif *hwif; |
160 | |
161 | struct dma_pool *cmdq_buf_pool; |
162 | |
163 | struct hinic_wq *saved_wqs; |
164 | |
165 | struct hinic_cmdq_pages cmdq_pages; |
166 | |
167 | struct hinic_cmdq cmdq[HINIC_MAX_CMDQ_TYPES]; |
168 | }; |
169 | |
170 | int hinic_alloc_cmdq_buf(struct hinic_cmdqs *cmdqs, |
171 | struct hinic_cmdq_buf *cmdq_buf); |
172 | |
173 | void hinic_free_cmdq_buf(struct hinic_cmdqs *cmdqs, |
174 | struct hinic_cmdq_buf *cmdq_buf); |
175 | |
176 | int hinic_cmdq_direct_resp(struct hinic_cmdqs *cmdqs, |
177 | enum hinic_mod_type mod, u8 cmd, |
178 | struct hinic_cmdq_buf *buf_in, u64 *out_param); |
179 | |
180 | int hinic_init_cmdqs(struct hinic_cmdqs *cmdqs, struct hinic_hwif *hwif, |
181 | void __iomem **db_area); |
182 | |
183 | void hinic_free_cmdqs(struct hinic_cmdqs *cmdqs); |
184 | |
185 | #endif |
186 | |