1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ 2 /* 3 * Copyright 2018-2019 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 }; 51 52 struct efa_com_query_qp_params { 53 u32 qp_handle; 54 }; 55 56 struct efa_com_query_qp_result { 57 u32 qp_state; 58 u32 qkey; 59 u32 sq_draining; 60 u32 sq_psn; 61 }; 62 63 struct efa_com_destroy_qp_params { 64 u32 qp_handle; 65 }; 66 67 struct efa_com_create_cq_params { 68 /* cq physical base address in OS memory */ 69 dma_addr_t dma_addr; 70 /* completion queue depth in # of entries */ 71 u16 cq_depth; 72 u16 num_sub_cqs; 73 u16 uarn; 74 u8 entry_size_in_bytes; 75 }; 76 77 struct efa_com_create_cq_result { 78 /* cq identifier */ 79 u16 cq_idx; 80 /* actual cq depth in # of entries */ 81 u16 actual_depth; 82 }; 83 84 struct efa_com_destroy_cq_params { 85 u16 cq_idx; 86 }; 87 88 struct efa_com_create_ah_params { 89 u16 pdn; 90 /* Destination address in network byte order */ 91 u8 dest_addr[EFA_GID_SIZE]; 92 }; 93 94 struct efa_com_create_ah_result { 95 u16 ah; 96 }; 97 98 struct efa_com_destroy_ah_params { 99 u16 ah; 100 u16 pdn; 101 }; 102 103 struct efa_com_get_device_attr_result { 104 u8 addr[EFA_GID_SIZE]; 105 u64 page_size_cap; 106 u64 max_mr_pages; 107 u32 mtu; 108 u32 fw_version; 109 u32 admin_api_version; 110 u32 device_version; 111 u32 supported_features; 112 u32 phys_addr_width; 113 u32 virt_addr_width; 114 u32 max_qp; 115 u32 max_sq_depth; /* wqes */ 116 u32 max_rq_depth; /* wqes */ 117 u32 max_cq; 118 u32 max_cq_depth; /* cqes */ 119 u32 inline_buf_size; 120 u32 max_mr; 121 u32 max_pd; 122 u32 max_ah; 123 u32 max_llq_size; 124 u32 max_rdma_size; 125 u32 device_caps; 126 u16 sub_cqs_per_cq; 127 u16 max_sq_sge; 128 u16 max_rq_sge; 129 u16 max_wr_rdma_sge; 130 u8 db_bar; 131 }; 132 133 struct efa_com_get_hw_hints_result { 134 u16 mmio_read_timeout; 135 u16 driver_watchdog_timeout; 136 u16 admin_completion_timeout; 137 u16 poll_interval; 138 u32 reserved[4]; 139 }; 140 141 struct efa_com_mem_addr { 142 u32 mem_addr_low; 143 u32 mem_addr_high; 144 }; 145 146 /* Used at indirect mode page list chunks for chaining */ 147 struct efa_com_ctrl_buff_info { 148 /* indicates length of the buffer pointed by control_buffer_address. */ 149 u32 length; 150 /* points to control buffer (direct or indirect) */ 151 struct efa_com_mem_addr address; 152 }; 153 154 struct efa_com_reg_mr_params { 155 /* Memory region length, in bytes. */ 156 u64 mr_length_in_bytes; 157 /* IO Virtual Address associated with this MR. */ 158 u64 iova; 159 /* words 8:15: Physical Buffer List, each element is page-aligned. */ 160 union { 161 /* 162 * Inline array of physical addresses of app pages 163 * (optimization for short region reservations) 164 */ 165 u64 inline_pbl_array[4]; 166 /* 167 * Describes the next physically contiguous chunk of indirect 168 * page list. A page list contains physical addresses of command 169 * data pages. Data pages are 4KB; page list chunks are 170 * variable-sized. 171 */ 172 struct efa_com_ctrl_buff_info pbl; 173 } pbl; 174 /* number of pages in PBL (redundant, could be calculated) */ 175 u32 page_num; 176 /* Protection Domain */ 177 u16 pd; 178 /* 179 * phys_page_size_shift - page size is (1 << phys_page_size_shift) 180 * Page size is used for building the Virtual to Physical 181 * address mapping 182 */ 183 u8 page_shift; 184 /* see permissions field of struct efa_admin_reg_mr_cmd */ 185 u8 permissions; 186 u8 inline_pbl; 187 u8 indirect; 188 }; 189 190 struct efa_com_reg_mr_result { 191 /* 192 * To be used in conjunction with local buffers references in SQ and 193 * RQ WQE 194 */ 195 u32 l_key; 196 /* 197 * To be used in incoming RDMA semantics messages to refer to remotely 198 * accessed memory region 199 */ 200 u32 r_key; 201 }; 202 203 struct efa_com_dereg_mr_params { 204 u32 l_key; 205 }; 206 207 struct efa_com_alloc_pd_result { 208 u16 pdn; 209 }; 210 211 struct efa_com_dealloc_pd_params { 212 u16 pdn; 213 }; 214 215 struct efa_com_alloc_uar_result { 216 u16 uarn; 217 }; 218 219 struct efa_com_dealloc_uar_params { 220 u16 uarn; 221 }; 222 223 struct efa_com_get_stats_params { 224 /* see enum efa_admin_get_stats_type */ 225 u8 type; 226 /* see enum efa_admin_get_stats_scope */ 227 u8 scope; 228 u16 scope_modifier; 229 }; 230 231 struct efa_com_basic_stats { 232 u64 tx_bytes; 233 u64 tx_pkts; 234 u64 rx_bytes; 235 u64 rx_pkts; 236 u64 rx_drops; 237 }; 238 239 union efa_com_get_stats_result { 240 struct efa_com_basic_stats basic_stats; 241 }; 242 243 void efa_com_set_dma_addr(dma_addr_t addr, u32 *addr_high, u32 *addr_low); 244 int efa_com_create_qp(struct efa_com_dev *edev, 245 struct efa_com_create_qp_params *params, 246 struct efa_com_create_qp_result *res); 247 int efa_com_modify_qp(struct efa_com_dev *edev, 248 struct efa_com_modify_qp_params *params); 249 int efa_com_query_qp(struct efa_com_dev *edev, 250 struct efa_com_query_qp_params *params, 251 struct efa_com_query_qp_result *result); 252 int efa_com_destroy_qp(struct efa_com_dev *edev, 253 struct efa_com_destroy_qp_params *params); 254 int efa_com_create_cq(struct efa_com_dev *edev, 255 struct efa_com_create_cq_params *params, 256 struct efa_com_create_cq_result *result); 257 int efa_com_destroy_cq(struct efa_com_dev *edev, 258 struct efa_com_destroy_cq_params *params); 259 int efa_com_register_mr(struct efa_com_dev *edev, 260 struct efa_com_reg_mr_params *params, 261 struct efa_com_reg_mr_result *result); 262 int efa_com_dereg_mr(struct efa_com_dev *edev, 263 struct efa_com_dereg_mr_params *params); 264 int efa_com_create_ah(struct efa_com_dev *edev, 265 struct efa_com_create_ah_params *params, 266 struct efa_com_create_ah_result *result); 267 int efa_com_destroy_ah(struct efa_com_dev *edev, 268 struct efa_com_destroy_ah_params *params); 269 int efa_com_get_device_attr(struct efa_com_dev *edev, 270 struct efa_com_get_device_attr_result *result); 271 int efa_com_get_hw_hints(struct efa_com_dev *edev, 272 struct efa_com_get_hw_hints_result *result); 273 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups); 274 int efa_com_alloc_pd(struct efa_com_dev *edev, 275 struct efa_com_alloc_pd_result *result); 276 int efa_com_dealloc_pd(struct efa_com_dev *edev, 277 struct efa_com_dealloc_pd_params *params); 278 int efa_com_alloc_uar(struct efa_com_dev *edev, 279 struct efa_com_alloc_uar_result *result); 280 int efa_com_dealloc_uar(struct efa_com_dev *edev, 281 struct efa_com_dealloc_uar_params *params); 282 int efa_com_get_stats(struct efa_com_dev *edev, 283 struct efa_com_get_stats_params *params, 284 union efa_com_get_stats_result *result); 285 286 #endif /* _EFA_COM_CMD_H_ */ 287