1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ 2 /* 3 * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved. 4 */ 5 6 #ifndef _EFA_COM_CMD_H_ 7 #define _EFA_COM_CMD_H_ 8 9 #include "efa_com.h" 10 11 #define EFA_GID_SIZE 16 12 13 struct efa_com_create_qp_params { 14 u64 rq_base_addr; 15 u32 send_cq_idx; 16 u32 recv_cq_idx; 17 /* 18 * Send descriptor ring size in bytes, 19 * sufficient for user-provided number of WQEs and SGL size 20 */ 21 u32 sq_ring_size_in_bytes; 22 /* Max number of WQEs that will be posted on send queue */ 23 u32 sq_depth; 24 /* Recv descriptor ring size in bytes */ 25 u32 rq_ring_size_in_bytes; 26 u32 rq_depth; 27 u16 pd; 28 u16 uarn; 29 u8 qp_type; 30 }; 31 32 struct efa_com_create_qp_result { 33 u32 qp_handle; 34 u32 qp_num; 35 u32 sq_db_offset; 36 u32 rq_db_offset; 37 u32 llq_descriptors_offset; 38 u16 send_sub_cq_idx; 39 u16 recv_sub_cq_idx; 40 }; 41 42 struct efa_com_modify_qp_params { 43 u32 modify_mask; 44 u32 qp_handle; 45 u32 qp_state; 46 u32 cur_qp_state; 47 u32 qkey; 48 u32 sq_psn; 49 u8 sq_drained_async_notify; 50 u8 rnr_retry; 51 }; 52 53 struct efa_com_query_qp_params { 54 u32 qp_handle; 55 }; 56 57 struct efa_com_query_qp_result { 58 u32 qp_state; 59 u32 qkey; 60 u32 sq_draining; 61 u32 sq_psn; 62 u8 rnr_retry; 63 }; 64 65 struct efa_com_destroy_qp_params { 66 u32 qp_handle; 67 }; 68 69 struct efa_com_create_cq_params { 70 /* cq physical base address in OS memory */ 71 dma_addr_t dma_addr; 72 /* completion queue depth in # of entries */ 73 u16 cq_depth; 74 u16 num_sub_cqs; 75 u16 uarn; 76 u16 eqn; 77 u8 entry_size_in_bytes; 78 bool interrupt_mode_enabled; 79 }; 80 81 struct efa_com_create_cq_result { 82 /* cq identifier */ 83 u16 cq_idx; 84 /* actual cq depth in # of entries */ 85 u16 actual_depth; 86 u32 db_off; 87 bool db_valid; 88 }; 89 90 struct efa_com_destroy_cq_params { 91 u16 cq_idx; 92 }; 93 94 struct efa_com_create_ah_params { 95 u16 pdn; 96 /* Destination address in network byte order */ 97 u8 dest_addr[EFA_GID_SIZE]; 98 }; 99 100 struct efa_com_create_ah_result { 101 u16 ah; 102 }; 103 104 struct efa_com_destroy_ah_params { 105 u16 ah; 106 u16 pdn; 107 }; 108 109 struct efa_com_get_device_attr_result { 110 u8 addr[EFA_GID_SIZE]; 111 u64 page_size_cap; 112 u64 max_mr_pages; 113 u32 mtu; 114 u32 fw_version; 115 u32 admin_api_version; 116 u32 device_version; 117 u32 supported_features; 118 u32 phys_addr_width; 119 u32 virt_addr_width; 120 u32 max_qp; 121 u32 max_sq_depth; /* wqes */ 122 u32 max_rq_depth; /* wqes */ 123 u32 max_cq; 124 u32 max_cq_depth; /* cqes */ 125 u32 inline_buf_size; 126 u32 max_mr; 127 u32 max_pd; 128 u32 max_ah; 129 u32 max_llq_size; 130 u32 max_rdma_size; 131 u32 device_caps; 132 u32 max_eq; 133 u32 max_eq_depth; 134 u32 event_bitmask; /* EQ events bitmask */ 135 u16 sub_cqs_per_cq; 136 u16 max_sq_sge; 137 u16 max_rq_sge; 138 u16 max_wr_rdma_sge; 139 u16 max_tx_batch; 140 u16 min_sq_depth; 141 u8 db_bar; 142 }; 143 144 struct efa_com_get_hw_hints_result { 145 u16 mmio_read_timeout; 146 u16 driver_watchdog_timeout; 147 u16 admin_completion_timeout; 148 u16 poll_interval; 149 u32 reserved[4]; 150 }; 151 152 struct efa_com_mem_addr { 153 u32 mem_addr_low; 154 u32 mem_addr_high; 155 }; 156 157 /* Used at indirect mode page list chunks for chaining */ 158 struct efa_com_ctrl_buff_info { 159 /* indicates length of the buffer pointed by control_buffer_address. */ 160 u32 length; 161 /* points to control buffer (direct or indirect) */ 162 struct efa_com_mem_addr address; 163 }; 164 165 struct efa_com_reg_mr_params { 166 /* Memory region length, in bytes. */ 167 u64 mr_length_in_bytes; 168 /* IO Virtual Address associated with this MR. */ 169 u64 iova; 170 /* words 8:15: Physical Buffer List, each element is page-aligned. */ 171 union { 172 /* 173 * Inline array of physical addresses of app pages 174 * (optimization for short region reservations) 175 */ 176 u64 inline_pbl_array[4]; 177 /* 178 * Describes the next physically contiguous chunk of indirect 179 * page list. A page list contains physical addresses of command 180 * data pages. Data pages are 4KB; page list chunks are 181 * variable-sized. 182 */ 183 struct efa_com_ctrl_buff_info pbl; 184 } pbl; 185 /* number of pages in PBL (redundant, could be calculated) */ 186 u32 page_num; 187 /* Protection Domain */ 188 u16 pd; 189 /* 190 * phys_page_size_shift - page size is (1 << phys_page_size_shift) 191 * Page size is used for building the Virtual to Physical 192 * address mapping 193 */ 194 u8 page_shift; 195 /* see permissions field of struct efa_admin_reg_mr_cmd */ 196 u8 permissions; 197 u8 inline_pbl; 198 u8 indirect; 199 }; 200 201 struct efa_com_reg_mr_result { 202 /* 203 * To be used in conjunction with local buffers references in SQ and 204 * RQ WQE 205 */ 206 u32 l_key; 207 /* 208 * To be used in incoming RDMA semantics messages to refer to remotely 209 * accessed memory region 210 */ 211 u32 r_key; 212 }; 213 214 struct efa_com_dereg_mr_params { 215 u32 l_key; 216 }; 217 218 struct efa_com_alloc_pd_result { 219 u16 pdn; 220 }; 221 222 struct efa_com_dealloc_pd_params { 223 u16 pdn; 224 }; 225 226 struct efa_com_alloc_uar_result { 227 u16 uarn; 228 }; 229 230 struct efa_com_dealloc_uar_params { 231 u16 uarn; 232 }; 233 234 struct efa_com_get_stats_params { 235 /* see enum efa_admin_get_stats_type */ 236 u8 type; 237 /* see enum efa_admin_get_stats_scope */ 238 u8 scope; 239 u16 scope_modifier; 240 }; 241 242 struct efa_com_basic_stats { 243 u64 tx_bytes; 244 u64 tx_pkts; 245 u64 rx_bytes; 246 u64 rx_pkts; 247 u64 rx_drops; 248 }; 249 250 struct efa_com_messages_stats { 251 u64 send_bytes; 252 u64 send_wrs; 253 u64 recv_bytes; 254 u64 recv_wrs; 255 }; 256 257 struct efa_com_rdma_read_stats { 258 u64 read_wrs; 259 u64 read_bytes; 260 u64 read_wr_err; 261 u64 read_resp_bytes; 262 }; 263 264 union efa_com_get_stats_result { 265 struct efa_com_basic_stats basic_stats; 266 struct efa_com_messages_stats messages_stats; 267 struct efa_com_rdma_read_stats rdma_read_stats; 268 }; 269 270 int efa_com_create_qp(struct efa_com_dev *edev, 271 struct efa_com_create_qp_params *params, 272 struct efa_com_create_qp_result *res); 273 int efa_com_modify_qp(struct efa_com_dev *edev, 274 struct efa_com_modify_qp_params *params); 275 int efa_com_query_qp(struct efa_com_dev *edev, 276 struct efa_com_query_qp_params *params, 277 struct efa_com_query_qp_result *result); 278 int efa_com_destroy_qp(struct efa_com_dev *edev, 279 struct efa_com_destroy_qp_params *params); 280 int efa_com_create_cq(struct efa_com_dev *edev, 281 struct efa_com_create_cq_params *params, 282 struct efa_com_create_cq_result *result); 283 int efa_com_destroy_cq(struct efa_com_dev *edev, 284 struct efa_com_destroy_cq_params *params); 285 int efa_com_register_mr(struct efa_com_dev *edev, 286 struct efa_com_reg_mr_params *params, 287 struct efa_com_reg_mr_result *result); 288 int efa_com_dereg_mr(struct efa_com_dev *edev, 289 struct efa_com_dereg_mr_params *params); 290 int efa_com_create_ah(struct efa_com_dev *edev, 291 struct efa_com_create_ah_params *params, 292 struct efa_com_create_ah_result *result); 293 int efa_com_destroy_ah(struct efa_com_dev *edev, 294 struct efa_com_destroy_ah_params *params); 295 int efa_com_get_device_attr(struct efa_com_dev *edev, 296 struct efa_com_get_device_attr_result *result); 297 int efa_com_get_hw_hints(struct efa_com_dev *edev, 298 struct efa_com_get_hw_hints_result *result); 299 bool 300 efa_com_check_supported_feature_id(struct efa_com_dev *edev, 301 enum efa_admin_aq_feature_id feature_id); 302 int efa_com_set_feature_ex(struct efa_com_dev *edev, 303 struct efa_admin_set_feature_resp *set_resp, 304 struct efa_admin_set_feature_cmd *set_cmd, 305 enum efa_admin_aq_feature_id feature_id, 306 dma_addr_t control_buf_dma_addr, 307 u32 control_buff_size); 308 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups); 309 int efa_com_alloc_pd(struct efa_com_dev *edev, 310 struct efa_com_alloc_pd_result *result); 311 int efa_com_dealloc_pd(struct efa_com_dev *edev, 312 struct efa_com_dealloc_pd_params *params); 313 int efa_com_alloc_uar(struct efa_com_dev *edev, 314 struct efa_com_alloc_uar_result *result); 315 int efa_com_dealloc_uar(struct efa_com_dev *edev, 316 struct efa_com_dealloc_uar_params *params); 317 int efa_com_get_stats(struct efa_com_dev *edev, 318 struct efa_com_get_stats_params *params, 319 union efa_com_get_stats_result *result); 320 321 #endif /* _EFA_COM_CMD_H_ */ 322