1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ 2 /* 3 * Copyright 2018-2024 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 u8 interrupt_mode_enabled : 1; 79 u8 set_src_addr : 1; 80 }; 81 82 struct efa_com_create_cq_result { 83 /* cq identifier */ 84 u16 cq_idx; 85 /* actual cq depth in # of entries */ 86 u16 actual_depth; 87 u32 db_off; 88 bool db_valid; 89 }; 90 91 struct efa_com_destroy_cq_params { 92 u16 cq_idx; 93 }; 94 95 struct efa_com_create_ah_params { 96 u16 pdn; 97 /* Destination address in network byte order */ 98 u8 dest_addr[EFA_GID_SIZE]; 99 }; 100 101 struct efa_com_create_ah_result { 102 u16 ah; 103 }; 104 105 struct efa_com_destroy_ah_params { 106 u16 ah; 107 u16 pdn; 108 }; 109 110 struct efa_com_get_device_attr_result { 111 u8 addr[EFA_GID_SIZE]; 112 u64 page_size_cap; 113 u64 max_mr_pages; 114 u32 mtu; 115 u32 fw_version; 116 u32 admin_api_version; 117 u32 device_version; 118 u32 supported_features; 119 u32 phys_addr_width; 120 u32 virt_addr_width; 121 u32 max_qp; 122 u32 max_sq_depth; /* wqes */ 123 u32 max_rq_depth; /* wqes */ 124 u32 max_cq; 125 u32 max_cq_depth; /* cqes */ 126 u32 inline_buf_size; 127 u32 max_mr; 128 u32 max_pd; 129 u32 max_ah; 130 u32 max_llq_size; 131 u32 max_rdma_size; 132 u32 device_caps; 133 u32 max_eq; 134 u32 max_eq_depth; 135 u32 event_bitmask; /* EQ events bitmask */ 136 u16 sub_cqs_per_cq; 137 u16 max_sq_sge; 138 u16 max_rq_sge; 139 u16 max_wr_rdma_sge; 140 u16 max_tx_batch; 141 u16 min_sq_depth; 142 u8 db_bar; 143 }; 144 145 struct efa_com_get_hw_hints_result { 146 u16 mmio_read_timeout; 147 u16 driver_watchdog_timeout; 148 u16 admin_completion_timeout; 149 u16 poll_interval; 150 u32 reserved[4]; 151 }; 152 153 struct efa_com_mem_addr { 154 u32 mem_addr_low; 155 u32 mem_addr_high; 156 }; 157 158 /* Used at indirect mode page list chunks for chaining */ 159 struct efa_com_ctrl_buff_info { 160 /* indicates length of the buffer pointed by control_buffer_address. */ 161 u32 length; 162 /* points to control buffer (direct or indirect) */ 163 struct efa_com_mem_addr address; 164 }; 165 166 struct efa_com_reg_mr_params { 167 /* Memory region length, in bytes. */ 168 u64 mr_length_in_bytes; 169 /* IO Virtual Address associated with this MR. */ 170 u64 iova; 171 /* words 8:15: Physical Buffer List, each element is page-aligned. */ 172 union { 173 /* 174 * Inline array of physical addresses of app pages 175 * (optimization for short region reservations) 176 */ 177 u64 inline_pbl_array[4]; 178 /* 179 * Describes the next physically contiguous chunk of indirect 180 * page list. A page list contains physical addresses of command 181 * data pages. Data pages are 4KB; page list chunks are 182 * variable-sized. 183 */ 184 struct efa_com_ctrl_buff_info pbl; 185 } pbl; 186 /* number of pages in PBL (redundant, could be calculated) */ 187 u32 page_num; 188 /* Protection Domain */ 189 u16 pd; 190 /* 191 * phys_page_size_shift - page size is (1 << phys_page_size_shift) 192 * Page size is used for building the Virtual to Physical 193 * address mapping 194 */ 195 u8 page_shift; 196 /* see permissions field of struct efa_admin_reg_mr_cmd */ 197 u8 permissions; 198 u8 inline_pbl; 199 u8 indirect; 200 }; 201 202 struct efa_com_mr_interconnect_info { 203 u16 recv_ic_id; 204 u16 rdma_read_ic_id; 205 u16 rdma_recv_ic_id; 206 u8 recv_ic_id_valid : 1; 207 u8 rdma_read_ic_id_valid : 1; 208 u8 rdma_recv_ic_id_valid : 1; 209 }; 210 211 struct efa_com_reg_mr_result { 212 /* 213 * To be used in conjunction with local buffers references in SQ and 214 * RQ WQE 215 */ 216 u32 l_key; 217 /* 218 * To be used in incoming RDMA semantics messages to refer to remotely 219 * accessed memory region 220 */ 221 u32 r_key; 222 struct efa_com_mr_interconnect_info ic_info; 223 }; 224 225 struct efa_com_dereg_mr_params { 226 u32 l_key; 227 }; 228 229 struct efa_com_alloc_pd_result { 230 u16 pdn; 231 }; 232 233 struct efa_com_dealloc_pd_params { 234 u16 pdn; 235 }; 236 237 struct efa_com_alloc_uar_result { 238 u16 uarn; 239 }; 240 241 struct efa_com_dealloc_uar_params { 242 u16 uarn; 243 }; 244 245 struct efa_com_get_stats_params { 246 /* see enum efa_admin_get_stats_type */ 247 u8 type; 248 /* see enum efa_admin_get_stats_scope */ 249 u8 scope; 250 u16 scope_modifier; 251 }; 252 253 struct efa_com_basic_stats { 254 u64 tx_bytes; 255 u64 tx_pkts; 256 u64 rx_bytes; 257 u64 rx_pkts; 258 u64 rx_drops; 259 }; 260 261 struct efa_com_messages_stats { 262 u64 send_bytes; 263 u64 send_wrs; 264 u64 recv_bytes; 265 u64 recv_wrs; 266 }; 267 268 struct efa_com_rdma_read_stats { 269 u64 read_wrs; 270 u64 read_bytes; 271 u64 read_wr_err; 272 u64 read_resp_bytes; 273 }; 274 275 struct efa_com_rdma_write_stats { 276 u64 write_wrs; 277 u64 write_bytes; 278 u64 write_wr_err; 279 u64 write_recv_bytes; 280 }; 281 282 union efa_com_get_stats_result { 283 struct efa_com_basic_stats basic_stats; 284 struct efa_com_messages_stats messages_stats; 285 struct efa_com_rdma_read_stats rdma_read_stats; 286 struct efa_com_rdma_write_stats rdma_write_stats; 287 }; 288 289 int efa_com_create_qp(struct efa_com_dev *edev, 290 struct efa_com_create_qp_params *params, 291 struct efa_com_create_qp_result *res); 292 int efa_com_modify_qp(struct efa_com_dev *edev, 293 struct efa_com_modify_qp_params *params); 294 int efa_com_query_qp(struct efa_com_dev *edev, 295 struct efa_com_query_qp_params *params, 296 struct efa_com_query_qp_result *result); 297 int efa_com_destroy_qp(struct efa_com_dev *edev, 298 struct efa_com_destroy_qp_params *params); 299 int efa_com_create_cq(struct efa_com_dev *edev, 300 struct efa_com_create_cq_params *params, 301 struct efa_com_create_cq_result *result); 302 int efa_com_destroy_cq(struct efa_com_dev *edev, 303 struct efa_com_destroy_cq_params *params); 304 int efa_com_register_mr(struct efa_com_dev *edev, 305 struct efa_com_reg_mr_params *params, 306 struct efa_com_reg_mr_result *result); 307 int efa_com_dereg_mr(struct efa_com_dev *edev, 308 struct efa_com_dereg_mr_params *params); 309 int efa_com_create_ah(struct efa_com_dev *edev, 310 struct efa_com_create_ah_params *params, 311 struct efa_com_create_ah_result *result); 312 int efa_com_destroy_ah(struct efa_com_dev *edev, 313 struct efa_com_destroy_ah_params *params); 314 int efa_com_get_device_attr(struct efa_com_dev *edev, 315 struct efa_com_get_device_attr_result *result); 316 int efa_com_get_hw_hints(struct efa_com_dev *edev, 317 struct efa_com_get_hw_hints_result *result); 318 bool 319 efa_com_check_supported_feature_id(struct efa_com_dev *edev, 320 enum efa_admin_aq_feature_id feature_id); 321 int efa_com_set_feature_ex(struct efa_com_dev *edev, 322 struct efa_admin_set_feature_resp *set_resp, 323 struct efa_admin_set_feature_cmd *set_cmd, 324 enum efa_admin_aq_feature_id feature_id, 325 dma_addr_t control_buf_dma_addr, 326 u32 control_buff_size); 327 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups); 328 int efa_com_alloc_pd(struct efa_com_dev *edev, 329 struct efa_com_alloc_pd_result *result); 330 int efa_com_dealloc_pd(struct efa_com_dev *edev, 331 struct efa_com_dealloc_pd_params *params); 332 int efa_com_alloc_uar(struct efa_com_dev *edev, 333 struct efa_com_alloc_uar_result *result); 334 int efa_com_dealloc_uar(struct efa_com_dev *edev, 335 struct efa_com_dealloc_uar_params *params); 336 int efa_com_get_stats(struct efa_com_dev *edev, 337 struct efa_com_get_stats_params *params, 338 union efa_com_get_stats_result *result); 339 340 #endif /* _EFA_COM_CMD_H_ */ 341