1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2016 6WIND S.A. 3 * Copyright 2016 Mellanox Technologies, Ltd 4 */ 5 6 #include <sys/queue.h> 7 #include <stdint.h> 8 #include <string.h> 9 10 /* Verbs header. */ 11 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ 12 #ifdef PEDANTIC 13 #pragma GCC diagnostic ignored "-Wpedantic" 14 #endif 15 #include <infiniband/verbs.h> 16 #ifdef PEDANTIC 17 #pragma GCC diagnostic error "-Wpedantic" 18 #endif 19 20 #include <rte_common.h> 21 #include <rte_ether.h> 22 #include <rte_eth_ctrl.h> 23 #include <rte_ethdev_driver.h> 24 #include <rte_flow.h> 25 #include <rte_flow_driver.h> 26 #include <rte_malloc.h> 27 #include <rte_ip.h> 28 29 #include "mlx5.h" 30 #include "mlx5_defs.h" 31 #include "mlx5_prm.h" 32 #include "mlx5_glue.h" 33 34 /* Flow priority for control plane flows. */ 35 #define MLX5_CTRL_FLOW_PRIORITY 1 36 37 /* Internet Protocol versions. */ 38 #define MLX5_IPV4 4 39 #define MLX5_IPV6 6 40 #define MLX5_GRE 47 41 42 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 43 struct ibv_flow_spec_counter_action { 44 int dummy; 45 }; 46 #endif 47 48 /* Dev ops structure defined in mlx5.c */ 49 extern const struct eth_dev_ops mlx5_dev_ops; 50 extern const struct eth_dev_ops mlx5_dev_ops_isolate; 51 52 /** Structure give to the conversion functions. */ 53 struct mlx5_flow_data { 54 struct rte_eth_dev *dev; /** Ethernet device. */ 55 struct mlx5_flow_parse *parser; /** Parser context. */ 56 struct rte_flow_error *error; /** Error context. */ 57 }; 58 59 static int 60 mlx5_flow_create_eth(const struct rte_flow_item *item, 61 const void *default_mask, 62 struct mlx5_flow_data *data); 63 64 static int 65 mlx5_flow_create_vlan(const struct rte_flow_item *item, 66 const void *default_mask, 67 struct mlx5_flow_data *data); 68 69 static int 70 mlx5_flow_create_ipv4(const struct rte_flow_item *item, 71 const void *default_mask, 72 struct mlx5_flow_data *data); 73 74 static int 75 mlx5_flow_create_ipv6(const struct rte_flow_item *item, 76 const void *default_mask, 77 struct mlx5_flow_data *data); 78 79 static int 80 mlx5_flow_create_udp(const struct rte_flow_item *item, 81 const void *default_mask, 82 struct mlx5_flow_data *data); 83 84 static int 85 mlx5_flow_create_tcp(const struct rte_flow_item *item, 86 const void *default_mask, 87 struct mlx5_flow_data *data); 88 89 static int 90 mlx5_flow_create_vxlan(const struct rte_flow_item *item, 91 const void *default_mask, 92 struct mlx5_flow_data *data); 93 94 static int 95 mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item, 96 const void *default_mask, 97 struct mlx5_flow_data *data); 98 99 static int 100 mlx5_flow_create_gre(const struct rte_flow_item *item, 101 const void *default_mask, 102 struct mlx5_flow_data *data); 103 104 static int 105 mlx5_flow_create_mpls(const struct rte_flow_item *item, 106 const void *default_mask, 107 struct mlx5_flow_data *data); 108 109 struct mlx5_flow_parse; 110 111 static void 112 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, 113 unsigned int size); 114 115 static int 116 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id); 117 118 static int 119 mlx5_flow_create_count(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser); 120 121 /* Hash RX queue types. */ 122 enum hash_rxq_type { 123 HASH_RXQ_TCPV4, 124 HASH_RXQ_UDPV4, 125 HASH_RXQ_IPV4, 126 HASH_RXQ_TCPV6, 127 HASH_RXQ_UDPV6, 128 HASH_RXQ_IPV6, 129 HASH_RXQ_ETH, 130 HASH_RXQ_TUNNEL, 131 }; 132 133 /* Initialization data for hash RX queue. */ 134 struct hash_rxq_init { 135 uint64_t hash_fields; /* Fields that participate in the hash. */ 136 uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */ 137 unsigned int flow_priority; /* Flow priority to use. */ 138 unsigned int ip_version; /* Internet protocol. */ 139 }; 140 141 /* Initialization data for hash RX queues. */ 142 const struct hash_rxq_init hash_rxq_init[] = { 143 [HASH_RXQ_TCPV4] = { 144 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 145 IBV_RX_HASH_DST_IPV4 | 146 IBV_RX_HASH_SRC_PORT_TCP | 147 IBV_RX_HASH_DST_PORT_TCP), 148 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP, 149 .flow_priority = 0, 150 .ip_version = MLX5_IPV4, 151 }, 152 [HASH_RXQ_UDPV4] = { 153 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 154 IBV_RX_HASH_DST_IPV4 | 155 IBV_RX_HASH_SRC_PORT_UDP | 156 IBV_RX_HASH_DST_PORT_UDP), 157 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP, 158 .flow_priority = 0, 159 .ip_version = MLX5_IPV4, 160 }, 161 [HASH_RXQ_IPV4] = { 162 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 163 IBV_RX_HASH_DST_IPV4), 164 .dpdk_rss_hf = (ETH_RSS_IPV4 | 165 ETH_RSS_FRAG_IPV4), 166 .flow_priority = 1, 167 .ip_version = MLX5_IPV4, 168 }, 169 [HASH_RXQ_TCPV6] = { 170 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 171 IBV_RX_HASH_DST_IPV6 | 172 IBV_RX_HASH_SRC_PORT_TCP | 173 IBV_RX_HASH_DST_PORT_TCP), 174 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP, 175 .flow_priority = 0, 176 .ip_version = MLX5_IPV6, 177 }, 178 [HASH_RXQ_UDPV6] = { 179 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 180 IBV_RX_HASH_DST_IPV6 | 181 IBV_RX_HASH_SRC_PORT_UDP | 182 IBV_RX_HASH_DST_PORT_UDP), 183 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP, 184 .flow_priority = 0, 185 .ip_version = MLX5_IPV6, 186 }, 187 [HASH_RXQ_IPV6] = { 188 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 189 IBV_RX_HASH_DST_IPV6), 190 .dpdk_rss_hf = (ETH_RSS_IPV6 | 191 ETH_RSS_FRAG_IPV6), 192 .flow_priority = 1, 193 .ip_version = MLX5_IPV6, 194 }, 195 [HASH_RXQ_ETH] = { 196 .hash_fields = 0, 197 .dpdk_rss_hf = 0, 198 .flow_priority = 2, 199 }, 200 }; 201 202 /* Number of entries in hash_rxq_init[]. */ 203 const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init); 204 205 /** Structure for holding counter stats. */ 206 struct mlx5_flow_counter_stats { 207 uint64_t hits; /**< Number of packets matched by the rule. */ 208 uint64_t bytes; /**< Number of bytes matched by the rule. */ 209 }; 210 211 /** Structure for Drop queue. */ 212 struct mlx5_hrxq_drop { 213 struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */ 214 struct ibv_qp *qp; /**< Verbs queue pair. */ 215 struct ibv_wq *wq; /**< Verbs work queue. */ 216 struct ibv_cq *cq; /**< Verbs completion queue. */ 217 }; 218 219 /* Flows structures. */ 220 struct mlx5_flow { 221 uint64_t hash_fields; /**< Fields that participate in the hash. */ 222 struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ 223 struct ibv_flow *ibv_flow; /**< Verbs flow. */ 224 struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */ 225 }; 226 227 /* Drop flows structures. */ 228 struct mlx5_flow_drop { 229 struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ 230 struct ibv_flow *ibv_flow; /**< Verbs flow. */ 231 }; 232 233 struct rte_flow { 234 TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */ 235 uint32_t mark:1; /**< Set if the flow is marked. */ 236 uint32_t drop:1; /**< Drop queue. */ 237 struct rte_flow_action_rss rss_conf; /**< RSS configuration */ 238 uint16_t (*queues)[]; /**< Queues indexes to use. */ 239 uint8_t rss_key[40]; /**< copy of the RSS key. */ 240 uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */ 241 struct ibv_counter_set *cs; /**< Holds the counters for the rule. */ 242 struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */ 243 struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)]; 244 /**< Flow with Rx queue. */ 245 }; 246 247 /** Static initializer for items. */ 248 #define ITEMS(...) \ 249 (const enum rte_flow_item_type []){ \ 250 __VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \ 251 } 252 253 #define IS_TUNNEL(type) ( \ 254 (type) == RTE_FLOW_ITEM_TYPE_VXLAN || \ 255 (type) == RTE_FLOW_ITEM_TYPE_VXLAN_GPE || \ 256 (type) == RTE_FLOW_ITEM_TYPE_GRE || \ 257 (type) == RTE_FLOW_ITEM_TYPE_MPLS) 258 259 const uint32_t flow_ptype[] = { 260 [RTE_FLOW_ITEM_TYPE_VXLAN] = RTE_PTYPE_TUNNEL_VXLAN, 261 [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = RTE_PTYPE_TUNNEL_VXLAN_GPE, 262 [RTE_FLOW_ITEM_TYPE_GRE] = RTE_PTYPE_TUNNEL_GRE, 263 [RTE_FLOW_ITEM_TYPE_MPLS] = RTE_PTYPE_TUNNEL_MPLS_IN_GRE, 264 }; 265 266 #define PTYPE_IDX(t) ((RTE_PTYPE_TUNNEL_MASK & (t)) >> 12) 267 268 const uint32_t ptype_ext[] = { 269 [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] = RTE_PTYPE_TUNNEL_VXLAN | 270 RTE_PTYPE_L4_UDP, 271 [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)] = RTE_PTYPE_TUNNEL_VXLAN_GPE | 272 RTE_PTYPE_L4_UDP, 273 [PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)] = RTE_PTYPE_TUNNEL_GRE, 274 [PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_GRE)] = 275 RTE_PTYPE_TUNNEL_MPLS_IN_GRE, 276 [PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_UDP)] = 277 RTE_PTYPE_TUNNEL_MPLS_IN_GRE | RTE_PTYPE_L4_UDP, 278 }; 279 280 /** Structure to generate a simple graph of layers supported by the NIC. */ 281 struct mlx5_flow_items { 282 /** List of possible actions for these items. */ 283 const enum rte_flow_action_type *const actions; 284 /** Bit-masks corresponding to the possibilities for the item. */ 285 const void *mask; 286 /** 287 * Default bit-masks to use when item->mask is not provided. When 288 * \default_mask is also NULL, the full supported bit-mask (\mask) is 289 * used instead. 290 */ 291 const void *default_mask; 292 /** Bit-masks size in bytes. */ 293 const unsigned int mask_sz; 294 /** 295 * Conversion function from rte_flow to NIC specific flow. 296 * 297 * @param item 298 * rte_flow item to convert. 299 * @param default_mask 300 * Default bit-masks to use when item->mask is not provided. 301 * @param data 302 * Internal structure to store the conversion. 303 * 304 * @return 305 * 0 on success, a negative errno value otherwise and rte_errno is 306 * set. 307 */ 308 int (*convert)(const struct rte_flow_item *item, 309 const void *default_mask, 310 struct mlx5_flow_data *data); 311 /** Size in bytes of the destination structure. */ 312 const unsigned int dst_sz; 313 /** List of possible following items. */ 314 const enum rte_flow_item_type *const items; 315 }; 316 317 /** Valid action for this PMD. */ 318 static const enum rte_flow_action_type valid_actions[] = { 319 RTE_FLOW_ACTION_TYPE_DROP, 320 RTE_FLOW_ACTION_TYPE_QUEUE, 321 RTE_FLOW_ACTION_TYPE_MARK, 322 RTE_FLOW_ACTION_TYPE_FLAG, 323 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 324 RTE_FLOW_ACTION_TYPE_COUNT, 325 #endif 326 RTE_FLOW_ACTION_TYPE_END, 327 }; 328 329 /** Graph of supported items and associated actions. */ 330 static const struct mlx5_flow_items mlx5_flow_items[] = { 331 [RTE_FLOW_ITEM_TYPE_END] = { 332 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 333 RTE_FLOW_ITEM_TYPE_VXLAN, 334 RTE_FLOW_ITEM_TYPE_VXLAN_GPE, 335 RTE_FLOW_ITEM_TYPE_GRE), 336 }, 337 [RTE_FLOW_ITEM_TYPE_ETH] = { 338 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN, 339 RTE_FLOW_ITEM_TYPE_IPV4, 340 RTE_FLOW_ITEM_TYPE_IPV6), 341 .actions = valid_actions, 342 .mask = &(const struct rte_flow_item_eth){ 343 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", 344 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff", 345 .type = -1, 346 }, 347 .default_mask = &rte_flow_item_eth_mask, 348 .mask_sz = sizeof(struct rte_flow_item_eth), 349 .convert = mlx5_flow_create_eth, 350 .dst_sz = sizeof(struct ibv_flow_spec_eth), 351 }, 352 [RTE_FLOW_ITEM_TYPE_VLAN] = { 353 .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4, 354 RTE_FLOW_ITEM_TYPE_IPV6), 355 .actions = valid_actions, 356 .mask = &(const struct rte_flow_item_vlan){ 357 .tci = -1, 358 .inner_type = -1, 359 }, 360 .default_mask = &rte_flow_item_vlan_mask, 361 .mask_sz = sizeof(struct rte_flow_item_vlan), 362 .convert = mlx5_flow_create_vlan, 363 .dst_sz = 0, 364 }, 365 [RTE_FLOW_ITEM_TYPE_IPV4] = { 366 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, 367 RTE_FLOW_ITEM_TYPE_TCP, 368 RTE_FLOW_ITEM_TYPE_GRE), 369 .actions = valid_actions, 370 .mask = &(const struct rte_flow_item_ipv4){ 371 .hdr = { 372 .src_addr = -1, 373 .dst_addr = -1, 374 .type_of_service = -1, 375 .next_proto_id = -1, 376 }, 377 }, 378 .default_mask = &rte_flow_item_ipv4_mask, 379 .mask_sz = sizeof(struct rte_flow_item_ipv4), 380 .convert = mlx5_flow_create_ipv4, 381 .dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext), 382 }, 383 [RTE_FLOW_ITEM_TYPE_IPV6] = { 384 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, 385 RTE_FLOW_ITEM_TYPE_TCP, 386 RTE_FLOW_ITEM_TYPE_GRE), 387 .actions = valid_actions, 388 .mask = &(const struct rte_flow_item_ipv6){ 389 .hdr = { 390 .src_addr = { 391 0xff, 0xff, 0xff, 0xff, 392 0xff, 0xff, 0xff, 0xff, 393 0xff, 0xff, 0xff, 0xff, 394 0xff, 0xff, 0xff, 0xff, 395 }, 396 .dst_addr = { 397 0xff, 0xff, 0xff, 0xff, 398 0xff, 0xff, 0xff, 0xff, 399 0xff, 0xff, 0xff, 0xff, 400 0xff, 0xff, 0xff, 0xff, 401 }, 402 .vtc_flow = -1, 403 .proto = -1, 404 .hop_limits = -1, 405 }, 406 }, 407 .default_mask = &rte_flow_item_ipv6_mask, 408 .mask_sz = sizeof(struct rte_flow_item_ipv6), 409 .convert = mlx5_flow_create_ipv6, 410 .dst_sz = sizeof(struct ibv_flow_spec_ipv6), 411 }, 412 [RTE_FLOW_ITEM_TYPE_UDP] = { 413 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN, 414 RTE_FLOW_ITEM_TYPE_VXLAN_GPE, 415 RTE_FLOW_ITEM_TYPE_MPLS), 416 .actions = valid_actions, 417 .mask = &(const struct rte_flow_item_udp){ 418 .hdr = { 419 .src_port = -1, 420 .dst_port = -1, 421 }, 422 }, 423 .default_mask = &rte_flow_item_udp_mask, 424 .mask_sz = sizeof(struct rte_flow_item_udp), 425 .convert = mlx5_flow_create_udp, 426 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), 427 }, 428 [RTE_FLOW_ITEM_TYPE_TCP] = { 429 .actions = valid_actions, 430 .mask = &(const struct rte_flow_item_tcp){ 431 .hdr = { 432 .src_port = -1, 433 .dst_port = -1, 434 }, 435 }, 436 .default_mask = &rte_flow_item_tcp_mask, 437 .mask_sz = sizeof(struct rte_flow_item_tcp), 438 .convert = mlx5_flow_create_tcp, 439 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), 440 }, 441 [RTE_FLOW_ITEM_TYPE_GRE] = { 442 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 443 RTE_FLOW_ITEM_TYPE_IPV4, 444 RTE_FLOW_ITEM_TYPE_IPV6, 445 RTE_FLOW_ITEM_TYPE_MPLS), 446 .actions = valid_actions, 447 .mask = &(const struct rte_flow_item_gre){ 448 .protocol = -1, 449 }, 450 .default_mask = &rte_flow_item_gre_mask, 451 .mask_sz = sizeof(struct rte_flow_item_gre), 452 .convert = mlx5_flow_create_gre, 453 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT 454 .dst_sz = sizeof(struct ibv_flow_spec_gre), 455 #else 456 .dst_sz = sizeof(struct ibv_flow_spec_tunnel), 457 #endif 458 }, 459 [RTE_FLOW_ITEM_TYPE_MPLS] = { 460 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 461 RTE_FLOW_ITEM_TYPE_IPV4, 462 RTE_FLOW_ITEM_TYPE_IPV6), 463 .actions = valid_actions, 464 .mask = &(const struct rte_flow_item_mpls){ 465 .label_tc_s = "\xff\xff\xf0", 466 }, 467 .default_mask = &rte_flow_item_mpls_mask, 468 .mask_sz = sizeof(struct rte_flow_item_mpls), 469 .convert = mlx5_flow_create_mpls, 470 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT 471 .dst_sz = sizeof(struct ibv_flow_spec_mpls), 472 #endif 473 }, 474 [RTE_FLOW_ITEM_TYPE_VXLAN] = { 475 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 476 RTE_FLOW_ITEM_TYPE_IPV4, /* For L3 VXLAN. */ 477 RTE_FLOW_ITEM_TYPE_IPV6), /* For L3 VXLAN. */ 478 .actions = valid_actions, 479 .mask = &(const struct rte_flow_item_vxlan){ 480 .vni = "\xff\xff\xff", 481 }, 482 .default_mask = &rte_flow_item_vxlan_mask, 483 .mask_sz = sizeof(struct rte_flow_item_vxlan), 484 .convert = mlx5_flow_create_vxlan, 485 .dst_sz = sizeof(struct ibv_flow_spec_tunnel), 486 }, 487 [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = { 488 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 489 RTE_FLOW_ITEM_TYPE_IPV4, 490 RTE_FLOW_ITEM_TYPE_IPV6), 491 .actions = valid_actions, 492 .mask = &(const struct rte_flow_item_vxlan_gpe){ 493 .vni = "\xff\xff\xff", 494 }, 495 .default_mask = &rte_flow_item_vxlan_gpe_mask, 496 .mask_sz = sizeof(struct rte_flow_item_vxlan_gpe), 497 .convert = mlx5_flow_create_vxlan_gpe, 498 .dst_sz = sizeof(struct ibv_flow_spec_tunnel), 499 }, 500 }; 501 502 /** Structure to pass to the conversion function. */ 503 struct mlx5_flow_parse { 504 uint32_t inner; /**< Verbs value, set once tunnel is encountered. */ 505 uint32_t create:1; 506 /**< Whether resources should remain after a validate. */ 507 uint32_t drop:1; /**< Target is a drop queue. */ 508 uint32_t mark:1; /**< Mark is present in the flow. */ 509 uint32_t count:1; /**< Count is present in the flow. */ 510 uint32_t mark_id; /**< Mark identifier. */ 511 struct rte_flow_action_rss rss_conf; /**< RSS configuration */ 512 uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */ 513 uint8_t rss_key[40]; /**< copy of the RSS key. */ 514 enum hash_rxq_type layer; /**< Last pattern layer detected. */ 515 enum hash_rxq_type out_layer; /**< Last outer pattern layer detected. */ 516 uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */ 517 struct ibv_counter_set *cs; /**< Holds the counter set for the rule */ 518 struct { 519 struct ibv_flow_attr *ibv_attr; 520 /**< Pointer to Verbs attributes. */ 521 unsigned int offset; 522 /**< Current position or total size of the attribute. */ 523 uint64_t hash_fields; /**< Verbs hash fields. */ 524 } queue[RTE_DIM(hash_rxq_init)]; 525 }; 526 527 static const struct rte_flow_ops mlx5_flow_ops = { 528 .validate = mlx5_flow_validate, 529 .create = mlx5_flow_create, 530 .destroy = mlx5_flow_destroy, 531 .flush = mlx5_flow_flush, 532 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 533 .query = mlx5_flow_query, 534 #else 535 .query = NULL, 536 #endif 537 .isolate = mlx5_flow_isolate, 538 }; 539 540 /* Convert FDIR request to Generic flow. */ 541 struct mlx5_fdir { 542 struct rte_flow_attr attr; 543 struct rte_flow_action actions[2]; 544 struct rte_flow_item items[4]; 545 struct rte_flow_item_eth l2; 546 struct rte_flow_item_eth l2_mask; 547 union { 548 struct rte_flow_item_ipv4 ipv4; 549 struct rte_flow_item_ipv6 ipv6; 550 } l3; 551 union { 552 struct rte_flow_item_ipv4 ipv4; 553 struct rte_flow_item_ipv6 ipv6; 554 } l3_mask; 555 union { 556 struct rte_flow_item_udp udp; 557 struct rte_flow_item_tcp tcp; 558 } l4; 559 union { 560 struct rte_flow_item_udp udp; 561 struct rte_flow_item_tcp tcp; 562 } l4_mask; 563 struct rte_flow_action_queue queue; 564 }; 565 566 /* Verbs specification header. */ 567 struct ibv_spec_header { 568 enum ibv_flow_spec_type type; 569 uint16_t size; 570 }; 571 572 /** 573 * Check item is fully supported by the NIC matching capability. 574 * 575 * @param item[in] 576 * Item specification. 577 * @param mask[in] 578 * Bit-masks covering supported fields to compare with spec, last and mask in 579 * \item. 580 * @param size 581 * Bit-Mask size in bytes. 582 * 583 * @return 584 * 0 on success, a negative errno value otherwise and rte_errno is set. 585 */ 586 static int 587 mlx5_flow_item_validate(const struct rte_flow_item *item, 588 const uint8_t *mask, unsigned int size) 589 { 590 unsigned int i; 591 const uint8_t *spec = item->spec; 592 const uint8_t *last = item->last; 593 const uint8_t *m = item->mask ? item->mask : mask; 594 595 if (!spec && (item->mask || last)) 596 goto error; 597 if (!spec) 598 return 0; 599 /* 600 * Single-pass check to make sure that: 601 * - item->mask is supported, no bits are set outside mask. 602 * - Both masked item->spec and item->last are equal (no range 603 * supported). 604 */ 605 for (i = 0; i < size; i++) { 606 if (!m[i]) 607 continue; 608 if ((m[i] | mask[i]) != mask[i]) 609 goto error; 610 if (last && ((spec[i] & m[i]) != (last[i] & m[i]))) 611 goto error; 612 } 613 return 0; 614 error: 615 rte_errno = ENOTSUP; 616 return -rte_errno; 617 } 618 619 /** 620 * Extract attribute to the parser. 621 * 622 * @param[in] attr 623 * Flow rule attributes. 624 * @param[out] error 625 * Perform verbose error reporting if not NULL. 626 * 627 * @return 628 * 0 on success, a negative errno value otherwise and rte_errno is set. 629 */ 630 static int 631 mlx5_flow_convert_attributes(const struct rte_flow_attr *attr, 632 struct rte_flow_error *error) 633 { 634 if (attr->group) { 635 rte_flow_error_set(error, ENOTSUP, 636 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, 637 NULL, 638 "groups are not supported"); 639 return -rte_errno; 640 } 641 if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) { 642 rte_flow_error_set(error, ENOTSUP, 643 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, 644 NULL, 645 "priorities are not supported"); 646 return -rte_errno; 647 } 648 if (attr->egress) { 649 rte_flow_error_set(error, ENOTSUP, 650 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, 651 NULL, 652 "egress is not supported"); 653 return -rte_errno; 654 } 655 if (attr->transfer) { 656 rte_flow_error_set(error, ENOTSUP, 657 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, 658 NULL, 659 "transfer is not supported"); 660 return -rte_errno; 661 } 662 if (!attr->ingress) { 663 rte_flow_error_set(error, ENOTSUP, 664 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, 665 NULL, 666 "only ingress is supported"); 667 return -rte_errno; 668 } 669 return 0; 670 } 671 672 /** 673 * Extract actions request to the parser. 674 * 675 * @param dev 676 * Pointer to Ethernet device. 677 * @param[in] actions 678 * Associated actions (list terminated by the END action). 679 * @param[out] error 680 * Perform verbose error reporting if not NULL. 681 * @param[in, out] parser 682 * Internal parser structure. 683 * 684 * @return 685 * 0 on success, a negative errno value otherwise and rte_errno is set. 686 */ 687 static int 688 mlx5_flow_convert_actions(struct rte_eth_dev *dev, 689 const struct rte_flow_action actions[], 690 struct rte_flow_error *error, 691 struct mlx5_flow_parse *parser) 692 { 693 enum { FATE = 1, MARK = 2, COUNT = 4, }; 694 uint32_t overlap = 0; 695 struct priv *priv = dev->data->dev_private; 696 697 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) { 698 if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) { 699 continue; 700 } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) { 701 if (overlap & FATE) 702 goto exit_action_overlap; 703 overlap |= FATE; 704 parser->drop = 1; 705 } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) { 706 const struct rte_flow_action_queue *queue = 707 (const struct rte_flow_action_queue *) 708 actions->conf; 709 710 if (overlap & FATE) 711 goto exit_action_overlap; 712 overlap |= FATE; 713 if (!queue || (queue->index > (priv->rxqs_n - 1))) 714 goto exit_action_not_supported; 715 parser->queues[0] = queue->index; 716 parser->rss_conf = (struct rte_flow_action_rss){ 717 .queue_num = 1, 718 .queue = parser->queues, 719 }; 720 } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { 721 const struct rte_flow_action_rss *rss = 722 (const struct rte_flow_action_rss *) 723 actions->conf; 724 const uint8_t *rss_key; 725 uint32_t rss_key_len; 726 uint16_t n; 727 728 if (overlap & FATE) 729 goto exit_action_overlap; 730 overlap |= FATE; 731 if (rss->func && 732 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) { 733 rte_flow_error_set(error, EINVAL, 734 RTE_FLOW_ERROR_TYPE_ACTION, 735 actions, 736 "the only supported RSS hash" 737 " function is Toeplitz"); 738 return -rte_errno; 739 } 740 #ifndef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 741 if (parser->rss_conf.level > 1) { 742 rte_flow_error_set(error, EINVAL, 743 RTE_FLOW_ERROR_TYPE_ACTION, 744 actions, 745 "a nonzero RSS encapsulation" 746 " level is not supported"); 747 return -rte_errno; 748 } 749 #endif 750 if (parser->rss_conf.level > 2) { 751 rte_flow_error_set(error, EINVAL, 752 RTE_FLOW_ERROR_TYPE_ACTION, 753 actions, 754 "RSS encapsulation level" 755 " > 1 is not supported"); 756 return -rte_errno; 757 } 758 if (rss->types & MLX5_RSS_HF_MASK) { 759 rte_flow_error_set(error, EINVAL, 760 RTE_FLOW_ERROR_TYPE_ACTION, 761 actions, 762 "unsupported RSS type" 763 " requested"); 764 return -rte_errno; 765 } 766 if (rss->key_len) { 767 rss_key_len = rss->key_len; 768 rss_key = rss->key; 769 } else { 770 rss_key_len = rss_hash_default_key_len; 771 rss_key = rss_hash_default_key; 772 } 773 if (rss_key_len != RTE_DIM(parser->rss_key)) { 774 rte_flow_error_set(error, EINVAL, 775 RTE_FLOW_ERROR_TYPE_ACTION, 776 actions, 777 "RSS hash key must be" 778 " exactly 40 bytes long"); 779 return -rte_errno; 780 } 781 if (!rss->queue_num) { 782 rte_flow_error_set(error, EINVAL, 783 RTE_FLOW_ERROR_TYPE_ACTION, 784 actions, 785 "no valid queues"); 786 return -rte_errno; 787 } 788 if (rss->queue_num > RTE_DIM(parser->queues)) { 789 rte_flow_error_set(error, EINVAL, 790 RTE_FLOW_ERROR_TYPE_ACTION, 791 actions, 792 "too many queues for RSS" 793 " context"); 794 return -rte_errno; 795 } 796 for (n = 0; n < rss->queue_num; ++n) { 797 if (rss->queue[n] >= priv->rxqs_n) { 798 rte_flow_error_set(error, EINVAL, 799 RTE_FLOW_ERROR_TYPE_ACTION, 800 actions, 801 "queue id > number of" 802 " queues"); 803 return -rte_errno; 804 } 805 } 806 parser->rss_conf = (struct rte_flow_action_rss){ 807 .func = RTE_ETH_HASH_FUNCTION_DEFAULT, 808 .level = rss->level ? rss->level : 1, 809 .types = rss->types, 810 .key_len = rss_key_len, 811 .queue_num = rss->queue_num, 812 .key = memcpy(parser->rss_key, rss_key, 813 sizeof(*rss_key) * rss_key_len), 814 .queue = memcpy(parser->queues, rss->queue, 815 sizeof(*rss->queue) * 816 rss->queue_num), 817 }; 818 } else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) { 819 const struct rte_flow_action_mark *mark = 820 (const struct rte_flow_action_mark *) 821 actions->conf; 822 823 if (overlap & MARK) 824 goto exit_action_overlap; 825 overlap |= MARK; 826 if (!mark) { 827 rte_flow_error_set(error, EINVAL, 828 RTE_FLOW_ERROR_TYPE_ACTION, 829 actions, 830 "mark must be defined"); 831 return -rte_errno; 832 } else if (mark->id >= MLX5_FLOW_MARK_MAX) { 833 rte_flow_error_set(error, ENOTSUP, 834 RTE_FLOW_ERROR_TYPE_ACTION, 835 actions, 836 "mark must be between 0" 837 " and 16777199"); 838 return -rte_errno; 839 } 840 parser->mark = 1; 841 parser->mark_id = mark->id; 842 } else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) { 843 if (overlap & MARK) 844 goto exit_action_overlap; 845 overlap |= MARK; 846 parser->mark = 1; 847 } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT && 848 priv->config.flow_counter_en) { 849 if (overlap & COUNT) 850 goto exit_action_overlap; 851 overlap |= COUNT; 852 parser->count = 1; 853 } else { 854 goto exit_action_not_supported; 855 } 856 } 857 /* When fate is unknown, drop traffic. */ 858 if (!(overlap & FATE)) 859 parser->drop = 1; 860 if (parser->drop && parser->mark) 861 parser->mark = 0; 862 if (!parser->rss_conf.queue_num && !parser->drop) { 863 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, 864 NULL, "no valid action"); 865 return -rte_errno; 866 } 867 return 0; 868 exit_action_not_supported: 869 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 870 actions, "action not supported"); 871 return -rte_errno; 872 exit_action_overlap: 873 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 874 actions, "overlapping actions are not supported"); 875 return -rte_errno; 876 } 877 878 /** 879 * Validate items. 880 * 881 * @param[in] items 882 * Pattern specification (list terminated by the END pattern item). 883 * @param[out] error 884 * Perform verbose error reporting if not NULL. 885 * @param[in, out] parser 886 * Internal parser structure. 887 * 888 * @return 889 * 0 on success, a negative errno value otherwise and rte_errno is set. 890 */ 891 static int 892 mlx5_flow_convert_items_validate(struct rte_eth_dev *dev, 893 const struct rte_flow_item items[], 894 struct rte_flow_error *error, 895 struct mlx5_flow_parse *parser) 896 { 897 struct priv *priv = dev->data->dev_private; 898 const struct mlx5_flow_items *cur_item = mlx5_flow_items; 899 unsigned int i; 900 unsigned int last_voids = 0; 901 int ret = 0; 902 903 /* Initialise the offsets to start after verbs attribute. */ 904 for (i = 0; i != hash_rxq_init_n; ++i) 905 parser->queue[i].offset = sizeof(struct ibv_flow_attr); 906 for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { 907 const struct mlx5_flow_items *token = NULL; 908 unsigned int n; 909 910 if (items->type == RTE_FLOW_ITEM_TYPE_VOID) { 911 last_voids++; 912 continue; 913 } 914 for (i = 0; 915 cur_item->items && 916 cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END; 917 ++i) { 918 if (cur_item->items[i] == items->type) { 919 token = &mlx5_flow_items[items->type]; 920 break; 921 } 922 } 923 if (!token) { 924 ret = -ENOTSUP; 925 goto exit_item_not_supported; 926 } 927 cur_item = token; 928 ret = mlx5_flow_item_validate(items, 929 (const uint8_t *)cur_item->mask, 930 cur_item->mask_sz); 931 if (ret) 932 goto exit_item_not_supported; 933 if (IS_TUNNEL(items->type)) { 934 if (parser->tunnel && 935 !((items - last_voids - 1)->type == 936 RTE_FLOW_ITEM_TYPE_GRE && items->type == 937 RTE_FLOW_ITEM_TYPE_MPLS)) { 938 rte_flow_error_set(error, ENOTSUP, 939 RTE_FLOW_ERROR_TYPE_ITEM, 940 items, 941 "Cannot recognize multiple" 942 " tunnel encapsulations."); 943 return -rte_errno; 944 } 945 if (items->type == RTE_FLOW_ITEM_TYPE_MPLS && 946 !priv->config.mpls_en) { 947 rte_flow_error_set(error, ENOTSUP, 948 RTE_FLOW_ERROR_TYPE_ITEM, 949 items, 950 "MPLS not supported or" 951 " disabled in firmware" 952 " configuration."); 953 return -rte_errno; 954 } 955 if (!priv->config.tunnel_en && 956 parser->rss_conf.level > 1) { 957 rte_flow_error_set(error, ENOTSUP, 958 RTE_FLOW_ERROR_TYPE_ITEM, 959 items, 960 "RSS on tunnel is not supported"); 961 return -rte_errno; 962 } 963 parser->inner = IBV_FLOW_SPEC_INNER; 964 parser->tunnel = flow_ptype[items->type]; 965 } 966 if (parser->drop) { 967 parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz; 968 } else { 969 for (n = 0; n != hash_rxq_init_n; ++n) 970 parser->queue[n].offset += cur_item->dst_sz; 971 } 972 last_voids = 0; 973 } 974 if (parser->drop) { 975 parser->queue[HASH_RXQ_ETH].offset += 976 sizeof(struct ibv_flow_spec_action_drop); 977 } 978 if (parser->mark) { 979 for (i = 0; i != hash_rxq_init_n; ++i) 980 parser->queue[i].offset += 981 sizeof(struct ibv_flow_spec_action_tag); 982 } 983 if (parser->count) { 984 unsigned int size = sizeof(struct ibv_flow_spec_counter_action); 985 986 for (i = 0; i != hash_rxq_init_n; ++i) 987 parser->queue[i].offset += size; 988 } 989 return 0; 990 exit_item_not_supported: 991 return rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_ITEM, 992 items, "item not supported"); 993 } 994 995 /** 996 * Allocate memory space to store verbs flow attributes. 997 * 998 * @param[in] size 999 * Amount of byte to allocate. 1000 * @param[out] error 1001 * Perform verbose error reporting if not NULL. 1002 * 1003 * @return 1004 * A verbs flow attribute on success, NULL otherwise and rte_errno is set. 1005 */ 1006 static struct ibv_flow_attr * 1007 mlx5_flow_convert_allocate(unsigned int size, struct rte_flow_error *error) 1008 { 1009 struct ibv_flow_attr *ibv_attr; 1010 1011 ibv_attr = rte_calloc(__func__, 1, size, 0); 1012 if (!ibv_attr) { 1013 rte_flow_error_set(error, ENOMEM, 1014 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1015 NULL, 1016 "cannot allocate verbs spec attributes"); 1017 return NULL; 1018 } 1019 return ibv_attr; 1020 } 1021 1022 /** 1023 * Make inner packet matching with an higher priority from the non Inner 1024 * matching. 1025 * 1026 * @param dev 1027 * Pointer to Ethernet device. 1028 * @param[in, out] parser 1029 * Internal parser structure. 1030 * @param attr 1031 * User flow attribute. 1032 */ 1033 static void 1034 mlx5_flow_update_priority(struct rte_eth_dev *dev, 1035 struct mlx5_flow_parse *parser, 1036 const struct rte_flow_attr *attr) 1037 { 1038 struct priv *priv = dev->data->dev_private; 1039 unsigned int i; 1040 uint16_t priority; 1041 1042 /* 8 priorities >= 16 priorities 1043 * Control flow: 4-7 8-15 1044 * User normal flow: 1-3 4-7 1045 * User tunnel flow: 0-2 0-3 1046 */ 1047 priority = attr->priority * MLX5_VERBS_FLOW_PRIO_8; 1048 if (priv->config.max_verbs_prio == MLX5_VERBS_FLOW_PRIO_8) 1049 priority /= 2; 1050 /* 1051 * Lower non-tunnel flow Verbs priority 1 if only support 8 Verbs 1052 * priorities, lower 4 otherwise. 1053 */ 1054 if (!parser->inner) { 1055 if (priv->config.max_verbs_prio == MLX5_VERBS_FLOW_PRIO_8) 1056 priority += 1; 1057 else 1058 priority += MLX5_VERBS_FLOW_PRIO_8 / 2; 1059 } 1060 if (parser->drop) { 1061 parser->queue[HASH_RXQ_ETH].ibv_attr->priority = priority + 1062 hash_rxq_init[HASH_RXQ_ETH].flow_priority; 1063 return; 1064 } 1065 for (i = 0; i != hash_rxq_init_n; ++i) { 1066 if (!parser->queue[i].ibv_attr) 1067 continue; 1068 parser->queue[i].ibv_attr->priority = priority + 1069 hash_rxq_init[i].flow_priority; 1070 } 1071 } 1072 1073 /** 1074 * Finalise verbs flow attributes. 1075 * 1076 * @param[in, out] parser 1077 * Internal parser structure. 1078 */ 1079 static void 1080 mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser) 1081 { 1082 unsigned int i; 1083 uint32_t inner = parser->inner; 1084 1085 /* Don't create extra flows for outer RSS. */ 1086 if (parser->tunnel && parser->rss_conf.level < 2) 1087 return; 1088 /* 1089 * Fill missing layers in verbs specifications, or compute the correct 1090 * offset to allocate the memory space for the attributes and 1091 * specifications. 1092 */ 1093 for (i = 0; i != hash_rxq_init_n - 1; ++i) { 1094 union { 1095 struct ibv_flow_spec_ipv4_ext ipv4; 1096 struct ibv_flow_spec_ipv6 ipv6; 1097 struct ibv_flow_spec_tcp_udp udp_tcp; 1098 struct ibv_flow_spec_eth eth; 1099 } specs; 1100 void *dst; 1101 uint16_t size; 1102 1103 if (i == parser->layer) 1104 continue; 1105 if (parser->layer == HASH_RXQ_ETH || 1106 parser->layer == HASH_RXQ_TUNNEL) { 1107 if (hash_rxq_init[i].ip_version == MLX5_IPV4) { 1108 size = sizeof(struct ibv_flow_spec_ipv4_ext); 1109 specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){ 1110 .type = inner | IBV_FLOW_SPEC_IPV4_EXT, 1111 .size = size, 1112 }; 1113 } else { 1114 size = sizeof(struct ibv_flow_spec_ipv6); 1115 specs.ipv6 = (struct ibv_flow_spec_ipv6){ 1116 .type = inner | IBV_FLOW_SPEC_IPV6, 1117 .size = size, 1118 }; 1119 } 1120 if (parser->queue[i].ibv_attr) { 1121 dst = (void *)((uintptr_t) 1122 parser->queue[i].ibv_attr + 1123 parser->queue[i].offset); 1124 memcpy(dst, &specs, size); 1125 ++parser->queue[i].ibv_attr->num_of_specs; 1126 } 1127 parser->queue[i].offset += size; 1128 } 1129 if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) || 1130 (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) { 1131 size = sizeof(struct ibv_flow_spec_tcp_udp); 1132 specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) { 1133 .type = inner | ((i == HASH_RXQ_UDPV4 || 1134 i == HASH_RXQ_UDPV6) ? 1135 IBV_FLOW_SPEC_UDP : 1136 IBV_FLOW_SPEC_TCP), 1137 .size = size, 1138 }; 1139 if (parser->queue[i].ibv_attr) { 1140 dst = (void *)((uintptr_t) 1141 parser->queue[i].ibv_attr + 1142 parser->queue[i].offset); 1143 memcpy(dst, &specs, size); 1144 ++parser->queue[i].ibv_attr->num_of_specs; 1145 } 1146 parser->queue[i].offset += size; 1147 } 1148 } 1149 } 1150 1151 /** 1152 * Update flows according to pattern and RSS hash fields. 1153 * 1154 * @param[in, out] parser 1155 * Internal parser structure. 1156 * 1157 * @return 1158 * 0 on success, a negative errno value otherwise and rte_errno is set. 1159 */ 1160 static int 1161 mlx5_flow_convert_rss(struct mlx5_flow_parse *parser) 1162 { 1163 unsigned int i; 1164 enum hash_rxq_type start; 1165 enum hash_rxq_type layer; 1166 int outer = parser->tunnel && parser->rss_conf.level < 2; 1167 uint64_t rss = parser->rss_conf.types; 1168 1169 layer = outer ? parser->out_layer : parser->layer; 1170 if (layer == HASH_RXQ_TUNNEL) 1171 layer = HASH_RXQ_ETH; 1172 if (outer) { 1173 /* Only one hash type for outer RSS. */ 1174 if (rss && layer == HASH_RXQ_ETH) { 1175 start = HASH_RXQ_TCPV4; 1176 } else if (rss && layer != HASH_RXQ_ETH && 1177 !(rss & hash_rxq_init[layer].dpdk_rss_hf)) { 1178 /* If RSS not match L4 pattern, try L3 RSS. */ 1179 if (layer < HASH_RXQ_IPV4) 1180 layer = HASH_RXQ_IPV4; 1181 else if (layer > HASH_RXQ_IPV4 && layer < HASH_RXQ_IPV6) 1182 layer = HASH_RXQ_IPV6; 1183 start = layer; 1184 } else { 1185 start = layer; 1186 } 1187 /* Scan first valid hash type. */ 1188 for (i = start; rss && i <= layer; ++i) { 1189 if (!parser->queue[i].ibv_attr) 1190 continue; 1191 if (hash_rxq_init[i].dpdk_rss_hf & rss) 1192 break; 1193 } 1194 if (rss && i <= layer) 1195 parser->queue[layer].hash_fields = 1196 hash_rxq_init[i].hash_fields; 1197 /* Trim unused hash types. */ 1198 for (i = 0; i != hash_rxq_init_n; ++i) { 1199 if (parser->queue[i].ibv_attr && i != layer) { 1200 rte_free(parser->queue[i].ibv_attr); 1201 parser->queue[i].ibv_attr = NULL; 1202 } 1203 } 1204 } else { 1205 /* Expand for inner or normal RSS. */ 1206 if (rss && (layer == HASH_RXQ_ETH || layer == HASH_RXQ_IPV4)) 1207 start = HASH_RXQ_TCPV4; 1208 else if (rss && layer == HASH_RXQ_IPV6) 1209 start = HASH_RXQ_TCPV6; 1210 else 1211 start = layer; 1212 /* For L4 pattern, try L3 RSS if no L4 RSS. */ 1213 /* Trim unused hash types. */ 1214 for (i = 0; i != hash_rxq_init_n; ++i) { 1215 if (!parser->queue[i].ibv_attr) 1216 continue; 1217 if (i < start || i > layer) { 1218 rte_free(parser->queue[i].ibv_attr); 1219 parser->queue[i].ibv_attr = NULL; 1220 continue; 1221 } 1222 if (!rss) 1223 continue; 1224 if (hash_rxq_init[i].dpdk_rss_hf & rss) { 1225 parser->queue[i].hash_fields = 1226 hash_rxq_init[i].hash_fields; 1227 } else if (i != layer) { 1228 /* Remove unused RSS expansion. */ 1229 rte_free(parser->queue[i].ibv_attr); 1230 parser->queue[i].ibv_attr = NULL; 1231 } else if (layer < HASH_RXQ_IPV4 && 1232 (hash_rxq_init[HASH_RXQ_IPV4].dpdk_rss_hf & 1233 rss)) { 1234 /* Allow IPv4 RSS on L4 pattern. */ 1235 parser->queue[i].hash_fields = 1236 hash_rxq_init[HASH_RXQ_IPV4] 1237 .hash_fields; 1238 } else if (i > HASH_RXQ_IPV4 && i < HASH_RXQ_IPV6 && 1239 (hash_rxq_init[HASH_RXQ_IPV6].dpdk_rss_hf & 1240 rss)) { 1241 /* Allow IPv4 RSS on L4 pattern. */ 1242 parser->queue[i].hash_fields = 1243 hash_rxq_init[HASH_RXQ_IPV6] 1244 .hash_fields; 1245 } 1246 } 1247 } 1248 return 0; 1249 } 1250 1251 /** 1252 * Validate and convert a flow supported by the NIC. 1253 * 1254 * @param dev 1255 * Pointer to Ethernet device. 1256 * @param[in] attr 1257 * Flow rule attributes. 1258 * @param[in] pattern 1259 * Pattern specification (list terminated by the END pattern item). 1260 * @param[in] actions 1261 * Associated actions (list terminated by the END action). 1262 * @param[out] error 1263 * Perform verbose error reporting if not NULL. 1264 * @param[in, out] parser 1265 * Internal parser structure. 1266 * 1267 * @return 1268 * 0 on success, a negative errno value otherwise and rte_errno is set. 1269 */ 1270 static int 1271 mlx5_flow_convert(struct rte_eth_dev *dev, 1272 const struct rte_flow_attr *attr, 1273 const struct rte_flow_item items[], 1274 const struct rte_flow_action actions[], 1275 struct rte_flow_error *error, 1276 struct mlx5_flow_parse *parser) 1277 { 1278 const struct mlx5_flow_items *cur_item = mlx5_flow_items; 1279 unsigned int i; 1280 int ret; 1281 1282 /* First step. Validate the attributes, items and actions. */ 1283 *parser = (struct mlx5_flow_parse){ 1284 .create = parser->create, 1285 .layer = HASH_RXQ_ETH, 1286 .mark_id = MLX5_FLOW_MARK_DEFAULT, 1287 }; 1288 ret = mlx5_flow_convert_attributes(attr, error); 1289 if (ret) 1290 return ret; 1291 ret = mlx5_flow_convert_actions(dev, actions, error, parser); 1292 if (ret) 1293 return ret; 1294 ret = mlx5_flow_convert_items_validate(dev, items, error, parser); 1295 if (ret) 1296 return ret; 1297 mlx5_flow_convert_finalise(parser); 1298 /* 1299 * Second step. 1300 * Allocate the memory space to store verbs specifications. 1301 */ 1302 if (parser->drop) { 1303 unsigned int offset = parser->queue[HASH_RXQ_ETH].offset; 1304 1305 parser->queue[HASH_RXQ_ETH].ibv_attr = 1306 mlx5_flow_convert_allocate(offset, error); 1307 if (!parser->queue[HASH_RXQ_ETH].ibv_attr) 1308 goto exit_enomem; 1309 parser->queue[HASH_RXQ_ETH].offset = 1310 sizeof(struct ibv_flow_attr); 1311 } else { 1312 for (i = 0; i != hash_rxq_init_n; ++i) { 1313 unsigned int offset; 1314 1315 offset = parser->queue[i].offset; 1316 parser->queue[i].ibv_attr = 1317 mlx5_flow_convert_allocate(offset, error); 1318 if (!parser->queue[i].ibv_attr) 1319 goto exit_enomem; 1320 parser->queue[i].offset = sizeof(struct ibv_flow_attr); 1321 } 1322 } 1323 /* Third step. Conversion parse, fill the specifications. */ 1324 parser->inner = 0; 1325 parser->tunnel = 0; 1326 parser->layer = HASH_RXQ_ETH; 1327 for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { 1328 struct mlx5_flow_data data = { 1329 .dev = dev, 1330 .parser = parser, 1331 .error = error, 1332 }; 1333 1334 if (items->type == RTE_FLOW_ITEM_TYPE_VOID) 1335 continue; 1336 cur_item = &mlx5_flow_items[items->type]; 1337 ret = cur_item->convert(items, 1338 (cur_item->default_mask ? 1339 cur_item->default_mask : 1340 cur_item->mask), 1341 &data); 1342 if (ret) 1343 goto exit_free; 1344 } 1345 if (!parser->drop) { 1346 /* RSS check, remove unused hash types. */ 1347 ret = mlx5_flow_convert_rss(parser); 1348 if (ret) 1349 goto exit_free; 1350 /* Complete missing specification. */ 1351 mlx5_flow_convert_finalise(parser); 1352 } 1353 mlx5_flow_update_priority(dev, parser, attr); 1354 if (parser->mark) 1355 mlx5_flow_create_flag_mark(parser, parser->mark_id); 1356 if (parser->count && parser->create) { 1357 mlx5_flow_create_count(dev, parser); 1358 if (!parser->cs) 1359 goto exit_count_error; 1360 } 1361 exit_free: 1362 /* Only verification is expected, all resources should be released. */ 1363 if (!parser->create) { 1364 for (i = 0; i != hash_rxq_init_n; ++i) { 1365 if (parser->queue[i].ibv_attr) { 1366 rte_free(parser->queue[i].ibv_attr); 1367 parser->queue[i].ibv_attr = NULL; 1368 } 1369 } 1370 } 1371 return ret; 1372 exit_enomem: 1373 for (i = 0; i != hash_rxq_init_n; ++i) { 1374 if (parser->queue[i].ibv_attr) { 1375 rte_free(parser->queue[i].ibv_attr); 1376 parser->queue[i].ibv_attr = NULL; 1377 } 1378 } 1379 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1380 NULL, "cannot allocate verbs spec attributes"); 1381 return -rte_errno; 1382 exit_count_error: 1383 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1384 NULL, "cannot create counter"); 1385 return -rte_errno; 1386 } 1387 1388 /** 1389 * Copy the specification created into the flow. 1390 * 1391 * @param parser 1392 * Internal parser structure. 1393 * @param src 1394 * Create specification. 1395 * @param size 1396 * Size in bytes of the specification to copy. 1397 */ 1398 static void 1399 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, 1400 unsigned int size) 1401 { 1402 unsigned int i; 1403 void *dst; 1404 1405 for (i = 0; i != hash_rxq_init_n; ++i) { 1406 if (!parser->queue[i].ibv_attr) 1407 continue; 1408 dst = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1409 parser->queue[i].offset); 1410 memcpy(dst, src, size); 1411 ++parser->queue[i].ibv_attr->num_of_specs; 1412 parser->queue[i].offset += size; 1413 } 1414 } 1415 1416 /** 1417 * Convert Ethernet item to Verbs specification. 1418 * 1419 * @param item[in] 1420 * Item specification. 1421 * @param default_mask[in] 1422 * Default bit-masks to use when item->mask is not provided. 1423 * @param data[in, out] 1424 * User structure. 1425 * 1426 * @return 1427 * 0 on success, a negative errno value otherwise and rte_errno is set. 1428 */ 1429 static int 1430 mlx5_flow_create_eth(const struct rte_flow_item *item, 1431 const void *default_mask, 1432 struct mlx5_flow_data *data) 1433 { 1434 const struct rte_flow_item_eth *spec = item->spec; 1435 const struct rte_flow_item_eth *mask = item->mask; 1436 struct mlx5_flow_parse *parser = data->parser; 1437 const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); 1438 struct ibv_flow_spec_eth eth = { 1439 .type = parser->inner | IBV_FLOW_SPEC_ETH, 1440 .size = eth_size, 1441 }; 1442 1443 parser->layer = HASH_RXQ_ETH; 1444 if (spec) { 1445 unsigned int i; 1446 1447 if (!mask) 1448 mask = default_mask; 1449 memcpy(ð.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN); 1450 memcpy(ð.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN); 1451 eth.val.ether_type = spec->type; 1452 memcpy(ð.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN); 1453 memcpy(ð.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN); 1454 eth.mask.ether_type = mask->type; 1455 /* Remove unwanted bits from values. */ 1456 for (i = 0; i < ETHER_ADDR_LEN; ++i) { 1457 eth.val.dst_mac[i] &= eth.mask.dst_mac[i]; 1458 eth.val.src_mac[i] &= eth.mask.src_mac[i]; 1459 } 1460 eth.val.ether_type &= eth.mask.ether_type; 1461 } 1462 mlx5_flow_create_copy(parser, ð, eth_size); 1463 return 0; 1464 } 1465 1466 /** 1467 * Convert VLAN item to Verbs specification. 1468 * 1469 * @param item[in] 1470 * Item specification. 1471 * @param default_mask[in] 1472 * Default bit-masks to use when item->mask is not provided. 1473 * @param data[in, out] 1474 * User structure. 1475 * 1476 * @return 1477 * 0 on success, a negative errno value otherwise and rte_errno is set. 1478 */ 1479 static int 1480 mlx5_flow_create_vlan(const struct rte_flow_item *item, 1481 const void *default_mask, 1482 struct mlx5_flow_data *data) 1483 { 1484 const struct rte_flow_item_vlan *spec = item->spec; 1485 const struct rte_flow_item_vlan *mask = item->mask; 1486 struct mlx5_flow_parse *parser = data->parser; 1487 struct ibv_flow_spec_eth *eth; 1488 const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); 1489 const char *msg = "VLAN cannot be empty"; 1490 1491 if (spec) { 1492 unsigned int i; 1493 if (!mask) 1494 mask = default_mask; 1495 1496 for (i = 0; i != hash_rxq_init_n; ++i) { 1497 if (!parser->queue[i].ibv_attr) 1498 continue; 1499 1500 eth = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1501 parser->queue[i].offset - eth_size); 1502 eth->val.vlan_tag = spec->tci; 1503 eth->mask.vlan_tag = mask->tci; 1504 eth->val.vlan_tag &= eth->mask.vlan_tag; 1505 /* 1506 * From verbs perspective an empty VLAN is equivalent 1507 * to a packet without VLAN layer. 1508 */ 1509 if (!eth->mask.vlan_tag) 1510 goto error; 1511 /* Outer TPID cannot be matched. */ 1512 if (eth->mask.ether_type) { 1513 msg = "VLAN TPID matching is not supported"; 1514 goto error; 1515 } 1516 eth->val.ether_type = spec->inner_type; 1517 eth->mask.ether_type = mask->inner_type; 1518 eth->val.ether_type &= eth->mask.ether_type; 1519 } 1520 return 0; 1521 } 1522 error: 1523 return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, 1524 item, msg); 1525 } 1526 1527 /** 1528 * Convert IPv4 item to Verbs specification. 1529 * 1530 * @param item[in] 1531 * Item specification. 1532 * @param default_mask[in] 1533 * Default bit-masks to use when item->mask is not provided. 1534 * @param data[in, out] 1535 * User structure. 1536 * 1537 * @return 1538 * 0 on success, a negative errno value otherwise and rte_errno is set. 1539 */ 1540 static int 1541 mlx5_flow_create_ipv4(const struct rte_flow_item *item, 1542 const void *default_mask, 1543 struct mlx5_flow_data *data) 1544 { 1545 struct priv *priv = data->dev->data->dev_private; 1546 const struct rte_flow_item_ipv4 *spec = item->spec; 1547 const struct rte_flow_item_ipv4 *mask = item->mask; 1548 struct mlx5_flow_parse *parser = data->parser; 1549 unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext); 1550 struct ibv_flow_spec_ipv4_ext ipv4 = { 1551 .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT, 1552 .size = ipv4_size, 1553 }; 1554 1555 if (parser->layer == HASH_RXQ_TUNNEL && 1556 parser->tunnel == ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] && 1557 !priv->config.l3_vxlan_en) 1558 return rte_flow_error_set(data->error, EINVAL, 1559 RTE_FLOW_ERROR_TYPE_ITEM, 1560 item, 1561 "L3 VXLAN not enabled by device" 1562 " parameter and/or not configured" 1563 " in firmware"); 1564 parser->layer = HASH_RXQ_IPV4; 1565 if (spec) { 1566 if (!mask) 1567 mask = default_mask; 1568 ipv4.val = (struct ibv_flow_ipv4_ext_filter){ 1569 .src_ip = spec->hdr.src_addr, 1570 .dst_ip = spec->hdr.dst_addr, 1571 .proto = spec->hdr.next_proto_id, 1572 .tos = spec->hdr.type_of_service, 1573 }; 1574 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){ 1575 .src_ip = mask->hdr.src_addr, 1576 .dst_ip = mask->hdr.dst_addr, 1577 .proto = mask->hdr.next_proto_id, 1578 .tos = mask->hdr.type_of_service, 1579 }; 1580 /* Remove unwanted bits from values. */ 1581 ipv4.val.src_ip &= ipv4.mask.src_ip; 1582 ipv4.val.dst_ip &= ipv4.mask.dst_ip; 1583 ipv4.val.proto &= ipv4.mask.proto; 1584 ipv4.val.tos &= ipv4.mask.tos; 1585 } 1586 mlx5_flow_create_copy(parser, &ipv4, ipv4_size); 1587 return 0; 1588 } 1589 1590 /** 1591 * Convert IPv6 item to Verbs specification. 1592 * 1593 * @param item[in] 1594 * Item specification. 1595 * @param default_mask[in] 1596 * Default bit-masks to use when item->mask is not provided. 1597 * @param data[in, out] 1598 * User structure. 1599 * 1600 * @return 1601 * 0 on success, a negative errno value otherwise and rte_errno is set. 1602 */ 1603 static int 1604 mlx5_flow_create_ipv6(const struct rte_flow_item *item, 1605 const void *default_mask, 1606 struct mlx5_flow_data *data) 1607 { 1608 struct priv *priv = data->dev->data->dev_private; 1609 const struct rte_flow_item_ipv6 *spec = item->spec; 1610 const struct rte_flow_item_ipv6 *mask = item->mask; 1611 struct mlx5_flow_parse *parser = data->parser; 1612 unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6); 1613 struct ibv_flow_spec_ipv6 ipv6 = { 1614 .type = parser->inner | IBV_FLOW_SPEC_IPV6, 1615 .size = ipv6_size, 1616 }; 1617 1618 if (parser->layer == HASH_RXQ_TUNNEL && 1619 parser->tunnel == ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] && 1620 !priv->config.l3_vxlan_en) 1621 return rte_flow_error_set(data->error, EINVAL, 1622 RTE_FLOW_ERROR_TYPE_ITEM, 1623 item, 1624 "L3 VXLAN not enabled by device" 1625 " parameter and/or not configured" 1626 " in firmware"); 1627 parser->layer = HASH_RXQ_IPV6; 1628 if (spec) { 1629 unsigned int i; 1630 uint32_t vtc_flow_val; 1631 uint32_t vtc_flow_mask; 1632 1633 if (!mask) 1634 mask = default_mask; 1635 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr, 1636 RTE_DIM(ipv6.val.src_ip)); 1637 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr, 1638 RTE_DIM(ipv6.val.dst_ip)); 1639 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr, 1640 RTE_DIM(ipv6.mask.src_ip)); 1641 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr, 1642 RTE_DIM(ipv6.mask.dst_ip)); 1643 vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow); 1644 vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow); 1645 ipv6.val.flow_label = 1646 rte_cpu_to_be_32((vtc_flow_val & IPV6_HDR_FL_MASK) >> 1647 IPV6_HDR_FL_SHIFT); 1648 ipv6.val.traffic_class = (vtc_flow_val & IPV6_HDR_TC_MASK) >> 1649 IPV6_HDR_TC_SHIFT; 1650 ipv6.val.next_hdr = spec->hdr.proto; 1651 ipv6.val.hop_limit = spec->hdr.hop_limits; 1652 ipv6.mask.flow_label = 1653 rte_cpu_to_be_32((vtc_flow_mask & IPV6_HDR_FL_MASK) >> 1654 IPV6_HDR_FL_SHIFT); 1655 ipv6.mask.traffic_class = (vtc_flow_mask & IPV6_HDR_TC_MASK) >> 1656 IPV6_HDR_TC_SHIFT; 1657 ipv6.mask.next_hdr = mask->hdr.proto; 1658 ipv6.mask.hop_limit = mask->hdr.hop_limits; 1659 /* Remove unwanted bits from values. */ 1660 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) { 1661 ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i]; 1662 ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i]; 1663 } 1664 ipv6.val.flow_label &= ipv6.mask.flow_label; 1665 ipv6.val.traffic_class &= ipv6.mask.traffic_class; 1666 ipv6.val.next_hdr &= ipv6.mask.next_hdr; 1667 ipv6.val.hop_limit &= ipv6.mask.hop_limit; 1668 } 1669 mlx5_flow_create_copy(parser, &ipv6, ipv6_size); 1670 return 0; 1671 } 1672 1673 /** 1674 * Convert UDP item to Verbs specification. 1675 * 1676 * @param item[in] 1677 * Item specification. 1678 * @param default_mask[in] 1679 * Default bit-masks to use when item->mask is not provided. 1680 * @param data[in, out] 1681 * User structure. 1682 * 1683 * @return 1684 * 0 on success, a negative errno value otherwise and rte_errno is set. 1685 */ 1686 static int 1687 mlx5_flow_create_udp(const struct rte_flow_item *item, 1688 const void *default_mask, 1689 struct mlx5_flow_data *data) 1690 { 1691 const struct rte_flow_item_udp *spec = item->spec; 1692 const struct rte_flow_item_udp *mask = item->mask; 1693 struct mlx5_flow_parse *parser = data->parser; 1694 unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp); 1695 struct ibv_flow_spec_tcp_udp udp = { 1696 .type = parser->inner | IBV_FLOW_SPEC_UDP, 1697 .size = udp_size, 1698 }; 1699 1700 if (parser->layer == HASH_RXQ_IPV4) 1701 parser->layer = HASH_RXQ_UDPV4; 1702 else 1703 parser->layer = HASH_RXQ_UDPV6; 1704 if (spec) { 1705 if (!mask) 1706 mask = default_mask; 1707 udp.val.dst_port = spec->hdr.dst_port; 1708 udp.val.src_port = spec->hdr.src_port; 1709 udp.mask.dst_port = mask->hdr.dst_port; 1710 udp.mask.src_port = mask->hdr.src_port; 1711 /* Remove unwanted bits from values. */ 1712 udp.val.src_port &= udp.mask.src_port; 1713 udp.val.dst_port &= udp.mask.dst_port; 1714 } 1715 mlx5_flow_create_copy(parser, &udp, udp_size); 1716 return 0; 1717 } 1718 1719 /** 1720 * Convert TCP item to Verbs specification. 1721 * 1722 * @param item[in] 1723 * Item specification. 1724 * @param default_mask[in] 1725 * Default bit-masks to use when item->mask is not provided. 1726 * @param data[in, out] 1727 * User structure. 1728 * 1729 * @return 1730 * 0 on success, a negative errno value otherwise and rte_errno is set. 1731 */ 1732 static int 1733 mlx5_flow_create_tcp(const struct rte_flow_item *item, 1734 const void *default_mask, 1735 struct mlx5_flow_data *data) 1736 { 1737 const struct rte_flow_item_tcp *spec = item->spec; 1738 const struct rte_flow_item_tcp *mask = item->mask; 1739 struct mlx5_flow_parse *parser = data->parser; 1740 unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp); 1741 struct ibv_flow_spec_tcp_udp tcp = { 1742 .type = parser->inner | IBV_FLOW_SPEC_TCP, 1743 .size = tcp_size, 1744 }; 1745 1746 if (parser->layer == HASH_RXQ_IPV4) 1747 parser->layer = HASH_RXQ_TCPV4; 1748 else 1749 parser->layer = HASH_RXQ_TCPV6; 1750 if (spec) { 1751 if (!mask) 1752 mask = default_mask; 1753 tcp.val.dst_port = spec->hdr.dst_port; 1754 tcp.val.src_port = spec->hdr.src_port; 1755 tcp.mask.dst_port = mask->hdr.dst_port; 1756 tcp.mask.src_port = mask->hdr.src_port; 1757 /* Remove unwanted bits from values. */ 1758 tcp.val.src_port &= tcp.mask.src_port; 1759 tcp.val.dst_port &= tcp.mask.dst_port; 1760 } 1761 mlx5_flow_create_copy(parser, &tcp, tcp_size); 1762 return 0; 1763 } 1764 1765 /** 1766 * Convert VXLAN item to Verbs specification. 1767 * 1768 * @param item[in] 1769 * Item specification. 1770 * @param default_mask[in] 1771 * Default bit-masks to use when item->mask is not provided. 1772 * @param data[in, out] 1773 * User structure. 1774 * 1775 * @return 1776 * 0 on success, a negative errno value otherwise and rte_errno is set. 1777 */ 1778 static int 1779 mlx5_flow_create_vxlan(const struct rte_flow_item *item, 1780 const void *default_mask, 1781 struct mlx5_flow_data *data) 1782 { 1783 const struct rte_flow_item_vxlan *spec = item->spec; 1784 const struct rte_flow_item_vxlan *mask = item->mask; 1785 struct mlx5_flow_parse *parser = data->parser; 1786 unsigned int size = sizeof(struct ibv_flow_spec_tunnel); 1787 struct ibv_flow_spec_tunnel vxlan = { 1788 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, 1789 .size = size, 1790 }; 1791 union vni { 1792 uint32_t vlan_id; 1793 uint8_t vni[4]; 1794 } id; 1795 1796 id.vni[0] = 0; 1797 parser->inner = IBV_FLOW_SPEC_INNER; 1798 parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)]; 1799 parser->out_layer = parser->layer; 1800 parser->layer = HASH_RXQ_TUNNEL; 1801 if (spec) { 1802 if (!mask) 1803 mask = default_mask; 1804 memcpy(&id.vni[1], spec->vni, 3); 1805 vxlan.val.tunnel_id = id.vlan_id; 1806 memcpy(&id.vni[1], mask->vni, 3); 1807 vxlan.mask.tunnel_id = id.vlan_id; 1808 /* Remove unwanted bits from values. */ 1809 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; 1810 } 1811 /* 1812 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this 1813 * layer is defined in the Verbs specification it is interpreted as 1814 * wildcard and all packets will match this rule, if it follows a full 1815 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers 1816 * before will also match this rule. 1817 * To avoid such situation, VNI 0 is currently refused. 1818 */ 1819 /* Only allow tunnel w/o tunnel id pattern after proper outer spec. */ 1820 if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id) 1821 return rte_flow_error_set(data->error, EINVAL, 1822 RTE_FLOW_ERROR_TYPE_ITEM, 1823 item, 1824 "VxLAN vni cannot be 0"); 1825 mlx5_flow_create_copy(parser, &vxlan, size); 1826 return 0; 1827 } 1828 1829 /** 1830 * Convert VXLAN-GPE item to Verbs specification. 1831 * 1832 * @param item[in] 1833 * Item specification. 1834 * @param default_mask[in] 1835 * Default bit-masks to use when item->mask is not provided. 1836 * @param data[in, out] 1837 * User structure. 1838 * 1839 * @return 1840 * 0 on success, a negative errno value otherwise and rte_errno is set. 1841 */ 1842 static int 1843 mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item, 1844 const void *default_mask, 1845 struct mlx5_flow_data *data) 1846 { 1847 struct priv *priv = data->dev->data->dev_private; 1848 const struct rte_flow_item_vxlan_gpe *spec = item->spec; 1849 const struct rte_flow_item_vxlan_gpe *mask = item->mask; 1850 struct mlx5_flow_parse *parser = data->parser; 1851 unsigned int size = sizeof(struct ibv_flow_spec_tunnel); 1852 struct ibv_flow_spec_tunnel vxlan = { 1853 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, 1854 .size = size, 1855 }; 1856 union vni { 1857 uint32_t vlan_id; 1858 uint8_t vni[4]; 1859 } id; 1860 1861 if (!priv->config.l3_vxlan_en) 1862 return rte_flow_error_set(data->error, EINVAL, 1863 RTE_FLOW_ERROR_TYPE_ITEM, 1864 item, 1865 "L3 VXLAN not enabled by device" 1866 " parameter and/or not configured" 1867 " in firmware"); 1868 id.vni[0] = 0; 1869 parser->inner = IBV_FLOW_SPEC_INNER; 1870 parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)]; 1871 parser->out_layer = parser->layer; 1872 parser->layer = HASH_RXQ_TUNNEL; 1873 if (spec) { 1874 if (!mask) 1875 mask = default_mask; 1876 memcpy(&id.vni[1], spec->vni, 3); 1877 vxlan.val.tunnel_id = id.vlan_id; 1878 memcpy(&id.vni[1], mask->vni, 3); 1879 vxlan.mask.tunnel_id = id.vlan_id; 1880 if (spec->protocol) 1881 return rte_flow_error_set(data->error, EINVAL, 1882 RTE_FLOW_ERROR_TYPE_ITEM, 1883 item, 1884 "VxLAN-GPE protocol not" 1885 " supported"); 1886 /* Remove unwanted bits from values. */ 1887 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; 1888 } 1889 /* 1890 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this 1891 * layer is defined in the Verbs specification it is interpreted as 1892 * wildcard and all packets will match this rule, if it follows a full 1893 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers 1894 * before will also match this rule. 1895 * To avoid such situation, VNI 0 is currently refused. 1896 */ 1897 /* Only allow tunnel w/o tunnel id pattern after proper outer spec. */ 1898 if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id) 1899 return rte_flow_error_set(data->error, EINVAL, 1900 RTE_FLOW_ERROR_TYPE_ITEM, 1901 item, 1902 "VxLAN-GPE vni cannot be 0"); 1903 mlx5_flow_create_copy(parser, &vxlan, size); 1904 return 0; 1905 } 1906 1907 /** 1908 * Convert GRE item to Verbs specification. 1909 * 1910 * @param item[in] 1911 * Item specification. 1912 * @param default_mask[in] 1913 * Default bit-masks to use when item->mask is not provided. 1914 * @param data[in, out] 1915 * User structure. 1916 * 1917 * @return 1918 * 0 on success, a negative errno value otherwise and rte_errno is set. 1919 */ 1920 static int 1921 mlx5_flow_create_gre(const struct rte_flow_item *item, 1922 const void *default_mask, 1923 struct mlx5_flow_data *data) 1924 { 1925 struct mlx5_flow_parse *parser = data->parser; 1926 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT 1927 (void)default_mask; 1928 unsigned int size = sizeof(struct ibv_flow_spec_tunnel); 1929 struct ibv_flow_spec_tunnel tunnel = { 1930 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, 1931 .size = size, 1932 }; 1933 #else 1934 const struct rte_flow_item_gre *spec = item->spec; 1935 const struct rte_flow_item_gre *mask = item->mask; 1936 unsigned int size = sizeof(struct ibv_flow_spec_gre); 1937 struct ibv_flow_spec_gre tunnel = { 1938 .type = parser->inner | IBV_FLOW_SPEC_GRE, 1939 .size = size, 1940 }; 1941 #endif 1942 struct ibv_flow_spec_ipv4_ext *ipv4; 1943 struct ibv_flow_spec_ipv6 *ipv6; 1944 unsigned int i; 1945 1946 parser->inner = IBV_FLOW_SPEC_INNER; 1947 parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)]; 1948 parser->out_layer = parser->layer; 1949 parser->layer = HASH_RXQ_TUNNEL; 1950 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT 1951 if (spec) { 1952 if (!mask) 1953 mask = default_mask; 1954 tunnel.val.c_ks_res0_ver = spec->c_rsvd0_ver; 1955 tunnel.val.protocol = spec->protocol; 1956 tunnel.mask.c_ks_res0_ver = mask->c_rsvd0_ver; 1957 tunnel.mask.protocol = mask->protocol; 1958 /* Remove unwanted bits from values. */ 1959 tunnel.val.c_ks_res0_ver &= tunnel.mask.c_ks_res0_ver; 1960 tunnel.val.protocol &= tunnel.mask.protocol; 1961 tunnel.val.key &= tunnel.mask.key; 1962 } 1963 #endif 1964 /* Update encapsulation IP layer protocol. */ 1965 for (i = 0; i != hash_rxq_init_n; ++i) { 1966 if (!parser->queue[i].ibv_attr) 1967 continue; 1968 if (parser->out_layer == HASH_RXQ_IPV4) { 1969 ipv4 = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1970 parser->queue[i].offset - 1971 sizeof(struct ibv_flow_spec_ipv4_ext)); 1972 if (ipv4->mask.proto && ipv4->val.proto != MLX5_GRE) 1973 break; 1974 ipv4->val.proto = MLX5_GRE; 1975 ipv4->mask.proto = 0xff; 1976 } else if (parser->out_layer == HASH_RXQ_IPV6) { 1977 ipv6 = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1978 parser->queue[i].offset - 1979 sizeof(struct ibv_flow_spec_ipv6)); 1980 if (ipv6->mask.next_hdr && 1981 ipv6->val.next_hdr != MLX5_GRE) 1982 break; 1983 ipv6->val.next_hdr = MLX5_GRE; 1984 ipv6->mask.next_hdr = 0xff; 1985 } 1986 } 1987 if (i != hash_rxq_init_n) 1988 return rte_flow_error_set(data->error, EINVAL, 1989 RTE_FLOW_ERROR_TYPE_ITEM, 1990 item, 1991 "IP protocol of GRE must be 47"); 1992 mlx5_flow_create_copy(parser, &tunnel, size); 1993 return 0; 1994 } 1995 1996 /** 1997 * Convert MPLS item to Verbs specification. 1998 * MPLS tunnel types currently supported are MPLS-in-GRE and MPLS-in-UDP. 1999 * 2000 * @param item[in] 2001 * Item specification. 2002 * @param default_mask[in] 2003 * Default bit-masks to use when item->mask is not provided. 2004 * @param data[in, out] 2005 * User structure. 2006 * 2007 * @return 2008 * 0 on success, a negative errno value otherwise and rte_errno is set. 2009 */ 2010 static int 2011 mlx5_flow_create_mpls(const struct rte_flow_item *item, 2012 const void *default_mask, 2013 struct mlx5_flow_data *data) 2014 { 2015 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT 2016 (void)default_mask; 2017 return rte_flow_error_set(data->error, ENOTSUP, 2018 RTE_FLOW_ERROR_TYPE_ITEM, 2019 item, 2020 "MPLS is not supported by driver"); 2021 #else 2022 const struct rte_flow_item_mpls *spec = item->spec; 2023 const struct rte_flow_item_mpls *mask = item->mask; 2024 struct mlx5_flow_parse *parser = data->parser; 2025 unsigned int size = sizeof(struct ibv_flow_spec_mpls); 2026 struct ibv_flow_spec_mpls mpls = { 2027 .type = IBV_FLOW_SPEC_MPLS, 2028 .size = size, 2029 }; 2030 2031 parser->inner = IBV_FLOW_SPEC_INNER; 2032 if (parser->layer == HASH_RXQ_UDPV4 || 2033 parser->layer == HASH_RXQ_UDPV6) { 2034 parser->tunnel = 2035 ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_UDP)]; 2036 parser->out_layer = parser->layer; 2037 } else { 2038 parser->tunnel = 2039 ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_GRE)]; 2040 /* parser->out_layer stays as in GRE out_layer. */ 2041 } 2042 parser->layer = HASH_RXQ_TUNNEL; 2043 if (spec) { 2044 if (!mask) 2045 mask = default_mask; 2046 /* 2047 * The verbs label field includes the entire MPLS header: 2048 * bits 0:19 - label value field. 2049 * bits 20:22 - traffic class field. 2050 * bits 23 - bottom of stack bit. 2051 * bits 24:31 - ttl field. 2052 */ 2053 mpls.val.label = *(const uint32_t *)spec; 2054 mpls.mask.label = *(const uint32_t *)mask; 2055 /* Remove unwanted bits from values. */ 2056 mpls.val.label &= mpls.mask.label; 2057 } 2058 mlx5_flow_create_copy(parser, &mpls, size); 2059 return 0; 2060 #endif 2061 } 2062 2063 /** 2064 * Convert mark/flag action to Verbs specification. 2065 * 2066 * @param parser 2067 * Internal parser structure. 2068 * @param mark_id 2069 * Mark identifier. 2070 * 2071 * @return 2072 * 0 on success, a negative errno value otherwise and rte_errno is set. 2073 */ 2074 static int 2075 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id) 2076 { 2077 unsigned int size = sizeof(struct ibv_flow_spec_action_tag); 2078 struct ibv_flow_spec_action_tag tag = { 2079 .type = IBV_FLOW_SPEC_ACTION_TAG, 2080 .size = size, 2081 .tag_id = mlx5_flow_mark_set(mark_id), 2082 }; 2083 2084 assert(parser->mark); 2085 mlx5_flow_create_copy(parser, &tag, size); 2086 return 0; 2087 } 2088 2089 /** 2090 * Convert count action to Verbs specification. 2091 * 2092 * @param dev 2093 * Pointer to Ethernet device. 2094 * @param parser 2095 * Pointer to MLX5 flow parser structure. 2096 * 2097 * @return 2098 * 0 on success, a negative errno value otherwise and rte_errno is set. 2099 */ 2100 static int 2101 mlx5_flow_create_count(struct rte_eth_dev *dev __rte_unused, 2102 struct mlx5_flow_parse *parser __rte_unused) 2103 { 2104 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 2105 struct priv *priv = dev->data->dev_private; 2106 unsigned int size = sizeof(struct ibv_flow_spec_counter_action); 2107 struct ibv_counter_set_init_attr init_attr = {0}; 2108 struct ibv_flow_spec_counter_action counter = { 2109 .type = IBV_FLOW_SPEC_ACTION_COUNT, 2110 .size = size, 2111 .counter_set_handle = 0, 2112 }; 2113 2114 init_attr.counter_set_id = 0; 2115 parser->cs = mlx5_glue->create_counter_set(priv->ctx, &init_attr); 2116 if (!parser->cs) { 2117 rte_errno = EINVAL; 2118 return -rte_errno; 2119 } 2120 counter.counter_set_handle = parser->cs->handle; 2121 mlx5_flow_create_copy(parser, &counter, size); 2122 #endif 2123 return 0; 2124 } 2125 2126 /** 2127 * Complete flow rule creation with a drop queue. 2128 * 2129 * @param dev 2130 * Pointer to Ethernet device. 2131 * @param parser 2132 * Internal parser structure. 2133 * @param flow 2134 * Pointer to the rte_flow. 2135 * @param[out] error 2136 * Perform verbose error reporting if not NULL. 2137 * 2138 * @return 2139 * 0 on success, a negative errno value otherwise and rte_errno is set. 2140 */ 2141 static int 2142 mlx5_flow_create_action_queue_drop(struct rte_eth_dev *dev, 2143 struct mlx5_flow_parse *parser, 2144 struct rte_flow *flow, 2145 struct rte_flow_error *error) 2146 { 2147 struct priv *priv = dev->data->dev_private; 2148 struct ibv_flow_spec_action_drop *drop; 2149 unsigned int size = sizeof(struct ibv_flow_spec_action_drop); 2150 2151 assert(priv->pd); 2152 assert(priv->ctx); 2153 flow->drop = 1; 2154 drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr + 2155 parser->queue[HASH_RXQ_ETH].offset); 2156 *drop = (struct ibv_flow_spec_action_drop){ 2157 .type = IBV_FLOW_SPEC_ACTION_DROP, 2158 .size = size, 2159 }; 2160 ++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs; 2161 parser->queue[HASH_RXQ_ETH].offset += size; 2162 flow->frxq[HASH_RXQ_ETH].ibv_attr = 2163 parser->queue[HASH_RXQ_ETH].ibv_attr; 2164 if (parser->count) 2165 flow->cs = parser->cs; 2166 if (!dev->data->dev_started) 2167 return 0; 2168 parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; 2169 flow->frxq[HASH_RXQ_ETH].ibv_flow = 2170 mlx5_glue->create_flow(priv->flow_drop_queue->qp, 2171 flow->frxq[HASH_RXQ_ETH].ibv_attr); 2172 if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) { 2173 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, 2174 NULL, "flow rule creation failure"); 2175 goto error; 2176 } 2177 return 0; 2178 error: 2179 assert(flow); 2180 if (flow->frxq[HASH_RXQ_ETH].ibv_flow) { 2181 claim_zero(mlx5_glue->destroy_flow 2182 (flow->frxq[HASH_RXQ_ETH].ibv_flow)); 2183 flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL; 2184 } 2185 if (flow->frxq[HASH_RXQ_ETH].ibv_attr) { 2186 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr); 2187 flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL; 2188 } 2189 if (flow->cs) { 2190 claim_zero(mlx5_glue->destroy_counter_set(flow->cs)); 2191 flow->cs = NULL; 2192 parser->cs = NULL; 2193 } 2194 return -rte_errno; 2195 } 2196 2197 /** 2198 * Create hash Rx queues when RSS is enabled. 2199 * 2200 * @param dev 2201 * Pointer to Ethernet device. 2202 * @param parser 2203 * Internal parser structure. 2204 * @param flow 2205 * Pointer to the rte_flow. 2206 * @param[out] error 2207 * Perform verbose error reporting if not NULL. 2208 * 2209 * @return 2210 * 0 on success, a negative errno value otherwise and rte_errno is set. 2211 */ 2212 static int 2213 mlx5_flow_create_action_queue_rss(struct rte_eth_dev *dev, 2214 struct mlx5_flow_parse *parser, 2215 struct rte_flow *flow, 2216 struct rte_flow_error *error) 2217 { 2218 unsigned int i; 2219 2220 for (i = 0; i != hash_rxq_init_n; ++i) { 2221 if (!parser->queue[i].ibv_attr) 2222 continue; 2223 flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr; 2224 parser->queue[i].ibv_attr = NULL; 2225 flow->frxq[i].hash_fields = parser->queue[i].hash_fields; 2226 if (!dev->data->dev_started) 2227 continue; 2228 flow->frxq[i].hrxq = 2229 mlx5_hrxq_get(dev, 2230 parser->rss_conf.key, 2231 parser->rss_conf.key_len, 2232 flow->frxq[i].hash_fields, 2233 parser->rss_conf.queue, 2234 parser->rss_conf.queue_num, 2235 parser->tunnel, 2236 parser->rss_conf.level); 2237 if (flow->frxq[i].hrxq) 2238 continue; 2239 flow->frxq[i].hrxq = 2240 mlx5_hrxq_new(dev, 2241 parser->rss_conf.key, 2242 parser->rss_conf.key_len, 2243 flow->frxq[i].hash_fields, 2244 parser->rss_conf.queue, 2245 parser->rss_conf.queue_num, 2246 parser->tunnel, 2247 parser->rss_conf.level); 2248 if (!flow->frxq[i].hrxq) { 2249 return rte_flow_error_set(error, ENOMEM, 2250 RTE_FLOW_ERROR_TYPE_HANDLE, 2251 NULL, 2252 "cannot create hash rxq"); 2253 } 2254 } 2255 return 0; 2256 } 2257 2258 /** 2259 * RXQ update after flow rule creation. 2260 * 2261 * @param dev 2262 * Pointer to Ethernet device. 2263 * @param flow 2264 * Pointer to the flow rule. 2265 */ 2266 static void 2267 mlx5_flow_create_update_rxqs(struct rte_eth_dev *dev, struct rte_flow *flow) 2268 { 2269 struct priv *priv = dev->data->dev_private; 2270 unsigned int i; 2271 unsigned int j; 2272 2273 if (!dev->data->dev_started) 2274 return; 2275 for (i = 0; i != flow->rss_conf.queue_num; ++i) { 2276 struct mlx5_rxq_data *rxq_data = (*priv->rxqs) 2277 [(*flow->queues)[i]]; 2278 struct mlx5_rxq_ctrl *rxq_ctrl = 2279 container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); 2280 uint8_t tunnel = PTYPE_IDX(flow->tunnel); 2281 2282 rxq_data->mark |= flow->mark; 2283 if (!tunnel) 2284 continue; 2285 rxq_ctrl->tunnel_types[tunnel] += 1; 2286 /* Clear tunnel type if more than one tunnel types set. */ 2287 for (j = 0; j != RTE_DIM(rxq_ctrl->tunnel_types); ++j) { 2288 if (j == tunnel) 2289 continue; 2290 if (rxq_ctrl->tunnel_types[j] > 0) { 2291 rxq_data->tunnel = 0; 2292 break; 2293 } 2294 } 2295 if (j == RTE_DIM(rxq_ctrl->tunnel_types)) 2296 rxq_data->tunnel = flow->tunnel; 2297 } 2298 } 2299 2300 /** 2301 * Dump flow hash RX queue detail. 2302 * 2303 * @param dev 2304 * Pointer to Ethernet device. 2305 * @param flow 2306 * Pointer to the rte_flow. 2307 * @param hrxq_idx 2308 * Hash RX queue index. 2309 */ 2310 static void 2311 mlx5_flow_dump(struct rte_eth_dev *dev __rte_unused, 2312 struct rte_flow *flow __rte_unused, 2313 unsigned int hrxq_idx __rte_unused) 2314 { 2315 #ifndef NDEBUG 2316 uintptr_t spec_ptr; 2317 uint16_t j; 2318 char buf[256]; 2319 uint8_t off; 2320 uint64_t extra_hash_fields = 0; 2321 2322 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 2323 if (flow->tunnel && flow->rss_conf.level > 1) 2324 extra_hash_fields = (uint32_t)IBV_RX_HASH_INNER; 2325 #endif 2326 spec_ptr = (uintptr_t)(flow->frxq[hrxq_idx].ibv_attr + 1); 2327 for (j = 0, off = 0; j < flow->frxq[hrxq_idx].ibv_attr->num_of_specs; 2328 j++) { 2329 struct ibv_flow_spec *spec = (void *)spec_ptr; 2330 off += sprintf(buf + off, " %x(%hu)", spec->hdr.type, 2331 spec->hdr.size); 2332 spec_ptr += spec->hdr.size; 2333 } 2334 DRV_LOG(DEBUG, 2335 "port %u Verbs flow %p type %u: hrxq:%p qp:%p ind:%p," 2336 " hash:%" PRIx64 "/%u specs:%hhu(%hu), priority:%hu, type:%d," 2337 " flags:%x, comp_mask:%x specs:%s", 2338 dev->data->port_id, (void *)flow, hrxq_idx, 2339 (void *)flow->frxq[hrxq_idx].hrxq, 2340 (void *)flow->frxq[hrxq_idx].hrxq->qp, 2341 (void *)flow->frxq[hrxq_idx].hrxq->ind_table, 2342 (flow->frxq[hrxq_idx].hash_fields | extra_hash_fields), 2343 flow->rss_conf.queue_num, 2344 flow->frxq[hrxq_idx].ibv_attr->num_of_specs, 2345 flow->frxq[hrxq_idx].ibv_attr->size, 2346 flow->frxq[hrxq_idx].ibv_attr->priority, 2347 flow->frxq[hrxq_idx].ibv_attr->type, 2348 flow->frxq[hrxq_idx].ibv_attr->flags, 2349 flow->frxq[hrxq_idx].ibv_attr->comp_mask, 2350 buf); 2351 #endif 2352 } 2353 2354 /** 2355 * Complete flow rule creation. 2356 * 2357 * @param dev 2358 * Pointer to Ethernet device. 2359 * @param parser 2360 * Internal parser structure. 2361 * @param flow 2362 * Pointer to the rte_flow. 2363 * @param[out] error 2364 * Perform verbose error reporting if not NULL. 2365 * 2366 * @return 2367 * 0 on success, a negative errno value otherwise and rte_errno is set. 2368 */ 2369 static int 2370 mlx5_flow_create_action_queue(struct rte_eth_dev *dev, 2371 struct mlx5_flow_parse *parser, 2372 struct rte_flow *flow, 2373 struct rte_flow_error *error) 2374 { 2375 struct priv *priv __rte_unused = dev->data->dev_private; 2376 int ret; 2377 unsigned int i; 2378 unsigned int flows_n = 0; 2379 2380 assert(priv->pd); 2381 assert(priv->ctx); 2382 assert(!parser->drop); 2383 ret = mlx5_flow_create_action_queue_rss(dev, parser, flow, error); 2384 if (ret) 2385 goto error; 2386 if (parser->count) 2387 flow->cs = parser->cs; 2388 if (!dev->data->dev_started) 2389 return 0; 2390 for (i = 0; i != hash_rxq_init_n; ++i) { 2391 if (!flow->frxq[i].hrxq) 2392 continue; 2393 flow->frxq[i].ibv_flow = 2394 mlx5_glue->create_flow(flow->frxq[i].hrxq->qp, 2395 flow->frxq[i].ibv_attr); 2396 mlx5_flow_dump(dev, flow, i); 2397 if (!flow->frxq[i].ibv_flow) { 2398 rte_flow_error_set(error, ENOMEM, 2399 RTE_FLOW_ERROR_TYPE_HANDLE, 2400 NULL, "flow rule creation failure"); 2401 goto error; 2402 } 2403 ++flows_n; 2404 } 2405 if (!flows_n) { 2406 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, 2407 NULL, "internal error in flow creation"); 2408 goto error; 2409 } 2410 mlx5_flow_create_update_rxqs(dev, flow); 2411 return 0; 2412 error: 2413 ret = rte_errno; /* Save rte_errno before cleanup. */ 2414 assert(flow); 2415 for (i = 0; i != hash_rxq_init_n; ++i) { 2416 if (flow->frxq[i].ibv_flow) { 2417 struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow; 2418 2419 claim_zero(mlx5_glue->destroy_flow(ibv_flow)); 2420 } 2421 if (flow->frxq[i].hrxq) 2422 mlx5_hrxq_release(dev, flow->frxq[i].hrxq); 2423 if (flow->frxq[i].ibv_attr) 2424 rte_free(flow->frxq[i].ibv_attr); 2425 } 2426 if (flow->cs) { 2427 claim_zero(mlx5_glue->destroy_counter_set(flow->cs)); 2428 flow->cs = NULL; 2429 parser->cs = NULL; 2430 } 2431 rte_errno = ret; /* Restore rte_errno. */ 2432 return -rte_errno; 2433 } 2434 2435 /** 2436 * Convert a flow. 2437 * 2438 * @param dev 2439 * Pointer to Ethernet device. 2440 * @param list 2441 * Pointer to a TAILQ flow list. 2442 * @param[in] attr 2443 * Flow rule attributes. 2444 * @param[in] pattern 2445 * Pattern specification (list terminated by the END pattern item). 2446 * @param[in] actions 2447 * Associated actions (list terminated by the END action). 2448 * @param[out] error 2449 * Perform verbose error reporting if not NULL. 2450 * 2451 * @return 2452 * A flow on success, NULL otherwise and rte_errno is set. 2453 */ 2454 static struct rte_flow * 2455 mlx5_flow_list_create(struct rte_eth_dev *dev, 2456 struct mlx5_flows *list, 2457 const struct rte_flow_attr *attr, 2458 const struct rte_flow_item items[], 2459 const struct rte_flow_action actions[], 2460 struct rte_flow_error *error) 2461 { 2462 struct mlx5_flow_parse parser = { .create = 1, }; 2463 struct rte_flow *flow = NULL; 2464 unsigned int i; 2465 int ret; 2466 2467 ret = mlx5_flow_convert(dev, attr, items, actions, error, &parser); 2468 if (ret) 2469 goto exit; 2470 flow = rte_calloc(__func__, 1, 2471 sizeof(*flow) + 2472 parser.rss_conf.queue_num * sizeof(uint16_t), 2473 0); 2474 if (!flow) { 2475 rte_flow_error_set(error, ENOMEM, 2476 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2477 NULL, 2478 "cannot allocate flow memory"); 2479 return NULL; 2480 } 2481 /* Copy configuration. */ 2482 flow->queues = (uint16_t (*)[])(flow + 1); 2483 flow->tunnel = parser.tunnel; 2484 flow->rss_conf = (struct rte_flow_action_rss){ 2485 .func = RTE_ETH_HASH_FUNCTION_DEFAULT, 2486 .level = parser.rss_conf.level, 2487 .types = parser.rss_conf.types, 2488 .key_len = parser.rss_conf.key_len, 2489 .queue_num = parser.rss_conf.queue_num, 2490 .key = memcpy(flow->rss_key, parser.rss_conf.key, 2491 sizeof(*parser.rss_conf.key) * 2492 parser.rss_conf.key_len), 2493 .queue = memcpy(flow->queues, parser.rss_conf.queue, 2494 sizeof(*parser.rss_conf.queue) * 2495 parser.rss_conf.queue_num), 2496 }; 2497 flow->mark = parser.mark; 2498 /* finalise the flow. */ 2499 if (parser.drop) 2500 ret = mlx5_flow_create_action_queue_drop(dev, &parser, flow, 2501 error); 2502 else 2503 ret = mlx5_flow_create_action_queue(dev, &parser, flow, error); 2504 if (ret) 2505 goto exit; 2506 TAILQ_INSERT_TAIL(list, flow, next); 2507 DRV_LOG(DEBUG, "port %u flow created %p", dev->data->port_id, 2508 (void *)flow); 2509 return flow; 2510 exit: 2511 DRV_LOG(ERR, "port %u flow creation error: %s", dev->data->port_id, 2512 error->message); 2513 for (i = 0; i != hash_rxq_init_n; ++i) { 2514 if (parser.queue[i].ibv_attr) 2515 rte_free(parser.queue[i].ibv_attr); 2516 } 2517 rte_free(flow); 2518 return NULL; 2519 } 2520 2521 /** 2522 * Validate a flow supported by the NIC. 2523 * 2524 * @see rte_flow_validate() 2525 * @see rte_flow_ops 2526 */ 2527 int 2528 mlx5_flow_validate(struct rte_eth_dev *dev, 2529 const struct rte_flow_attr *attr, 2530 const struct rte_flow_item items[], 2531 const struct rte_flow_action actions[], 2532 struct rte_flow_error *error) 2533 { 2534 struct mlx5_flow_parse parser = { .create = 0, }; 2535 2536 return mlx5_flow_convert(dev, attr, items, actions, error, &parser); 2537 } 2538 2539 /** 2540 * Create a flow. 2541 * 2542 * @see rte_flow_create() 2543 * @see rte_flow_ops 2544 */ 2545 struct rte_flow * 2546 mlx5_flow_create(struct rte_eth_dev *dev, 2547 const struct rte_flow_attr *attr, 2548 const struct rte_flow_item items[], 2549 const struct rte_flow_action actions[], 2550 struct rte_flow_error *error) 2551 { 2552 struct priv *priv = dev->data->dev_private; 2553 2554 return mlx5_flow_list_create(dev, &priv->flows, attr, items, actions, 2555 error); 2556 } 2557 2558 /** 2559 * Destroy a flow in a list. 2560 * 2561 * @param dev 2562 * Pointer to Ethernet device. 2563 * @param list 2564 * Pointer to a TAILQ flow list. 2565 * @param[in] flow 2566 * Flow to destroy. 2567 */ 2568 static void 2569 mlx5_flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list, 2570 struct rte_flow *flow) 2571 { 2572 struct priv *priv = dev->data->dev_private; 2573 unsigned int i; 2574 2575 if (flow->drop || !dev->data->dev_started) 2576 goto free; 2577 for (i = 0; flow->tunnel && i != flow->rss_conf.queue_num; ++i) { 2578 /* Update queue tunnel type. */ 2579 struct mlx5_rxq_data *rxq_data = (*priv->rxqs) 2580 [(*flow->queues)[i]]; 2581 struct mlx5_rxq_ctrl *rxq_ctrl = 2582 container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); 2583 uint8_t tunnel = PTYPE_IDX(flow->tunnel); 2584 2585 assert(rxq_ctrl->tunnel_types[tunnel] > 0); 2586 rxq_ctrl->tunnel_types[tunnel] -= 1; 2587 if (!rxq_ctrl->tunnel_types[tunnel]) { 2588 /* Update tunnel type. */ 2589 uint8_t j; 2590 uint8_t types = 0; 2591 uint8_t last; 2592 2593 for (j = 0; j < RTE_DIM(rxq_ctrl->tunnel_types); j++) 2594 if (rxq_ctrl->tunnel_types[j]) { 2595 types += 1; 2596 last = j; 2597 } 2598 /* Keep same if more than one tunnel types left. */ 2599 if (types == 1) 2600 rxq_data->tunnel = ptype_ext[last]; 2601 else if (types == 0) 2602 /* No tunnel type left. */ 2603 rxq_data->tunnel = 0; 2604 } 2605 } 2606 for (i = 0; flow->mark && i != flow->rss_conf.queue_num; ++i) { 2607 struct rte_flow *tmp; 2608 int mark = 0; 2609 2610 /* 2611 * To remove the mark from the queue, the queue must not be 2612 * present in any other marked flow (RSS or not). 2613 */ 2614 TAILQ_FOREACH(tmp, list, next) { 2615 unsigned int j; 2616 uint16_t *tqs = NULL; 2617 uint16_t tq_n = 0; 2618 2619 if (!tmp->mark) 2620 continue; 2621 for (j = 0; j != hash_rxq_init_n; ++j) { 2622 if (!tmp->frxq[j].hrxq) 2623 continue; 2624 tqs = tmp->frxq[j].hrxq->ind_table->queues; 2625 tq_n = tmp->frxq[j].hrxq->ind_table->queues_n; 2626 } 2627 if (!tq_n) 2628 continue; 2629 for (j = 0; (j != tq_n) && !mark; j++) 2630 if (tqs[j] == (*flow->queues)[i]) 2631 mark = 1; 2632 } 2633 (*priv->rxqs)[(*flow->queues)[i]]->mark = mark; 2634 } 2635 free: 2636 if (flow->drop) { 2637 if (flow->frxq[HASH_RXQ_ETH].ibv_flow) 2638 claim_zero(mlx5_glue->destroy_flow 2639 (flow->frxq[HASH_RXQ_ETH].ibv_flow)); 2640 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr); 2641 } else { 2642 for (i = 0; i != hash_rxq_init_n; ++i) { 2643 struct mlx5_flow *frxq = &flow->frxq[i]; 2644 2645 if (frxq->ibv_flow) 2646 claim_zero(mlx5_glue->destroy_flow 2647 (frxq->ibv_flow)); 2648 if (frxq->hrxq) 2649 mlx5_hrxq_release(dev, frxq->hrxq); 2650 if (frxq->ibv_attr) 2651 rte_free(frxq->ibv_attr); 2652 } 2653 } 2654 if (flow->cs) { 2655 claim_zero(mlx5_glue->destroy_counter_set(flow->cs)); 2656 flow->cs = NULL; 2657 } 2658 TAILQ_REMOVE(list, flow, next); 2659 DRV_LOG(DEBUG, "port %u flow destroyed %p", dev->data->port_id, 2660 (void *)flow); 2661 rte_free(flow); 2662 } 2663 2664 /** 2665 * Destroy all flows. 2666 * 2667 * @param dev 2668 * Pointer to Ethernet device. 2669 * @param list 2670 * Pointer to a TAILQ flow list. 2671 */ 2672 void 2673 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list) 2674 { 2675 while (!TAILQ_EMPTY(list)) { 2676 struct rte_flow *flow; 2677 2678 flow = TAILQ_FIRST(list); 2679 mlx5_flow_list_destroy(dev, list, flow); 2680 } 2681 } 2682 2683 /** 2684 * Create drop queue. 2685 * 2686 * @param dev 2687 * Pointer to Ethernet device. 2688 * 2689 * @return 2690 * 0 on success, a negative errno value otherwise and rte_errno is set. 2691 */ 2692 int 2693 mlx5_flow_create_drop_queue(struct rte_eth_dev *dev) 2694 { 2695 struct priv *priv = dev->data->dev_private; 2696 struct mlx5_hrxq_drop *fdq = NULL; 2697 2698 assert(priv->pd); 2699 assert(priv->ctx); 2700 fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0); 2701 if (!fdq) { 2702 DRV_LOG(WARNING, 2703 "port %u cannot allocate memory for drop queue", 2704 dev->data->port_id); 2705 rte_errno = ENOMEM; 2706 return -rte_errno; 2707 } 2708 fdq->cq = mlx5_glue->create_cq(priv->ctx, 1, NULL, NULL, 0); 2709 if (!fdq->cq) { 2710 DRV_LOG(WARNING, "port %u cannot allocate CQ for drop queue", 2711 dev->data->port_id); 2712 rte_errno = errno; 2713 goto error; 2714 } 2715 fdq->wq = mlx5_glue->create_wq 2716 (priv->ctx, 2717 &(struct ibv_wq_init_attr){ 2718 .wq_type = IBV_WQT_RQ, 2719 .max_wr = 1, 2720 .max_sge = 1, 2721 .pd = priv->pd, 2722 .cq = fdq->cq, 2723 }); 2724 if (!fdq->wq) { 2725 DRV_LOG(WARNING, "port %u cannot allocate WQ for drop queue", 2726 dev->data->port_id); 2727 rte_errno = errno; 2728 goto error; 2729 } 2730 fdq->ind_table = mlx5_glue->create_rwq_ind_table 2731 (priv->ctx, 2732 &(struct ibv_rwq_ind_table_init_attr){ 2733 .log_ind_tbl_size = 0, 2734 .ind_tbl = &fdq->wq, 2735 .comp_mask = 0, 2736 }); 2737 if (!fdq->ind_table) { 2738 DRV_LOG(WARNING, 2739 "port %u cannot allocate indirection table for drop" 2740 " queue", 2741 dev->data->port_id); 2742 rte_errno = errno; 2743 goto error; 2744 } 2745 fdq->qp = mlx5_glue->create_qp_ex 2746 (priv->ctx, 2747 &(struct ibv_qp_init_attr_ex){ 2748 .qp_type = IBV_QPT_RAW_PACKET, 2749 .comp_mask = 2750 IBV_QP_INIT_ATTR_PD | 2751 IBV_QP_INIT_ATTR_IND_TABLE | 2752 IBV_QP_INIT_ATTR_RX_HASH, 2753 .rx_hash_conf = (struct ibv_rx_hash_conf){ 2754 .rx_hash_function = 2755 IBV_RX_HASH_FUNC_TOEPLITZ, 2756 .rx_hash_key_len = rss_hash_default_key_len, 2757 .rx_hash_key = rss_hash_default_key, 2758 .rx_hash_fields_mask = 0, 2759 }, 2760 .rwq_ind_tbl = fdq->ind_table, 2761 .pd = priv->pd 2762 }); 2763 if (!fdq->qp) { 2764 DRV_LOG(WARNING, "port %u cannot allocate QP for drop queue", 2765 dev->data->port_id); 2766 rte_errno = errno; 2767 goto error; 2768 } 2769 priv->flow_drop_queue = fdq; 2770 return 0; 2771 error: 2772 if (fdq->qp) 2773 claim_zero(mlx5_glue->destroy_qp(fdq->qp)); 2774 if (fdq->ind_table) 2775 claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table)); 2776 if (fdq->wq) 2777 claim_zero(mlx5_glue->destroy_wq(fdq->wq)); 2778 if (fdq->cq) 2779 claim_zero(mlx5_glue->destroy_cq(fdq->cq)); 2780 if (fdq) 2781 rte_free(fdq); 2782 priv->flow_drop_queue = NULL; 2783 return -rte_errno; 2784 } 2785 2786 /** 2787 * Delete drop queue. 2788 * 2789 * @param dev 2790 * Pointer to Ethernet device. 2791 */ 2792 void 2793 mlx5_flow_delete_drop_queue(struct rte_eth_dev *dev) 2794 { 2795 struct priv *priv = dev->data->dev_private; 2796 struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue; 2797 2798 if (!fdq) 2799 return; 2800 if (fdq->qp) 2801 claim_zero(mlx5_glue->destroy_qp(fdq->qp)); 2802 if (fdq->ind_table) 2803 claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table)); 2804 if (fdq->wq) 2805 claim_zero(mlx5_glue->destroy_wq(fdq->wq)); 2806 if (fdq->cq) 2807 claim_zero(mlx5_glue->destroy_cq(fdq->cq)); 2808 rte_free(fdq); 2809 priv->flow_drop_queue = NULL; 2810 } 2811 2812 /** 2813 * Remove all flows. 2814 * 2815 * @param dev 2816 * Pointer to Ethernet device. 2817 * @param list 2818 * Pointer to a TAILQ flow list. 2819 */ 2820 void 2821 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list) 2822 { 2823 struct priv *priv = dev->data->dev_private; 2824 struct rte_flow *flow; 2825 unsigned int i; 2826 2827 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) { 2828 struct mlx5_ind_table_ibv *ind_tbl = NULL; 2829 2830 if (flow->drop) { 2831 if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) 2832 continue; 2833 claim_zero(mlx5_glue->destroy_flow 2834 (flow->frxq[HASH_RXQ_ETH].ibv_flow)); 2835 flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL; 2836 DRV_LOG(DEBUG, "port %u flow %p removed", 2837 dev->data->port_id, (void *)flow); 2838 /* Next flow. */ 2839 continue; 2840 } 2841 /* Verify the flow has not already been cleaned. */ 2842 for (i = 0; i != hash_rxq_init_n; ++i) { 2843 if (!flow->frxq[i].ibv_flow) 2844 continue; 2845 /* 2846 * Indirection table may be necessary to remove the 2847 * flags in the Rx queues. 2848 * This helps to speed-up the process by avoiding 2849 * another loop. 2850 */ 2851 ind_tbl = flow->frxq[i].hrxq->ind_table; 2852 break; 2853 } 2854 if (i == hash_rxq_init_n) 2855 return; 2856 if (flow->mark) { 2857 assert(ind_tbl); 2858 for (i = 0; i != ind_tbl->queues_n; ++i) 2859 (*priv->rxqs)[ind_tbl->queues[i]]->mark = 0; 2860 } 2861 for (i = 0; i != hash_rxq_init_n; ++i) { 2862 if (!flow->frxq[i].ibv_flow) 2863 continue; 2864 claim_zero(mlx5_glue->destroy_flow 2865 (flow->frxq[i].ibv_flow)); 2866 flow->frxq[i].ibv_flow = NULL; 2867 mlx5_hrxq_release(dev, flow->frxq[i].hrxq); 2868 flow->frxq[i].hrxq = NULL; 2869 } 2870 DRV_LOG(DEBUG, "port %u flow %p removed", dev->data->port_id, 2871 (void *)flow); 2872 } 2873 /* Cleanup Rx queue tunnel info. */ 2874 for (i = 0; i != priv->rxqs_n; ++i) { 2875 struct mlx5_rxq_data *q = (*priv->rxqs)[i]; 2876 struct mlx5_rxq_ctrl *rxq_ctrl = 2877 container_of(q, struct mlx5_rxq_ctrl, rxq); 2878 2879 if (!q) 2880 continue; 2881 memset((void *)rxq_ctrl->tunnel_types, 0, 2882 sizeof(rxq_ctrl->tunnel_types)); 2883 q->tunnel = 0; 2884 } 2885 } 2886 2887 /** 2888 * Add all flows. 2889 * 2890 * @param dev 2891 * Pointer to Ethernet device. 2892 * @param list 2893 * Pointer to a TAILQ flow list. 2894 * 2895 * @return 2896 * 0 on success, a negative errno value otherwise and rte_errno is set. 2897 */ 2898 int 2899 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list) 2900 { 2901 struct priv *priv = dev->data->dev_private; 2902 struct rte_flow *flow; 2903 2904 TAILQ_FOREACH(flow, list, next) { 2905 unsigned int i; 2906 2907 if (flow->drop) { 2908 flow->frxq[HASH_RXQ_ETH].ibv_flow = 2909 mlx5_glue->create_flow 2910 (priv->flow_drop_queue->qp, 2911 flow->frxq[HASH_RXQ_ETH].ibv_attr); 2912 if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) { 2913 DRV_LOG(DEBUG, 2914 "port %u flow %p cannot be applied", 2915 dev->data->port_id, (void *)flow); 2916 rte_errno = EINVAL; 2917 return -rte_errno; 2918 } 2919 DRV_LOG(DEBUG, "port %u flow %p applied", 2920 dev->data->port_id, (void *)flow); 2921 /* Next flow. */ 2922 continue; 2923 } 2924 for (i = 0; i != hash_rxq_init_n; ++i) { 2925 if (!flow->frxq[i].ibv_attr) 2926 continue; 2927 flow->frxq[i].hrxq = 2928 mlx5_hrxq_get(dev, flow->rss_conf.key, 2929 flow->rss_conf.key_len, 2930 flow->frxq[i].hash_fields, 2931 flow->rss_conf.queue, 2932 flow->rss_conf.queue_num, 2933 flow->tunnel, 2934 flow->rss_conf.level); 2935 if (flow->frxq[i].hrxq) 2936 goto flow_create; 2937 flow->frxq[i].hrxq = 2938 mlx5_hrxq_new(dev, flow->rss_conf.key, 2939 flow->rss_conf.key_len, 2940 flow->frxq[i].hash_fields, 2941 flow->rss_conf.queue, 2942 flow->rss_conf.queue_num, 2943 flow->tunnel, 2944 flow->rss_conf.level); 2945 if (!flow->frxq[i].hrxq) { 2946 DRV_LOG(DEBUG, 2947 "port %u flow %p cannot create hash" 2948 " rxq", 2949 dev->data->port_id, (void *)flow); 2950 rte_errno = EINVAL; 2951 return -rte_errno; 2952 } 2953 flow_create: 2954 mlx5_flow_dump(dev, flow, i); 2955 flow->frxq[i].ibv_flow = 2956 mlx5_glue->create_flow(flow->frxq[i].hrxq->qp, 2957 flow->frxq[i].ibv_attr); 2958 if (!flow->frxq[i].ibv_flow) { 2959 DRV_LOG(DEBUG, 2960 "port %u flow %p type %u cannot be" 2961 " applied", 2962 dev->data->port_id, (void *)flow, i); 2963 rte_errno = EINVAL; 2964 return -rte_errno; 2965 } 2966 } 2967 mlx5_flow_create_update_rxqs(dev, flow); 2968 } 2969 return 0; 2970 } 2971 2972 /** 2973 * Verify the flow list is empty 2974 * 2975 * @param dev 2976 * Pointer to Ethernet device. 2977 * 2978 * @return the number of flows not released. 2979 */ 2980 int 2981 mlx5_flow_verify(struct rte_eth_dev *dev) 2982 { 2983 struct priv *priv = dev->data->dev_private; 2984 struct rte_flow *flow; 2985 int ret = 0; 2986 2987 TAILQ_FOREACH(flow, &priv->flows, next) { 2988 DRV_LOG(DEBUG, "port %u flow %p still referenced", 2989 dev->data->port_id, (void *)flow); 2990 ++ret; 2991 } 2992 return ret; 2993 } 2994 2995 /** 2996 * Enable a control flow configured from the control plane. 2997 * 2998 * @param dev 2999 * Pointer to Ethernet device. 3000 * @param eth_spec 3001 * An Ethernet flow spec to apply. 3002 * @param eth_mask 3003 * An Ethernet flow mask to apply. 3004 * @param vlan_spec 3005 * A VLAN flow spec to apply. 3006 * @param vlan_mask 3007 * A VLAN flow mask to apply. 3008 * 3009 * @return 3010 * 0 on success, a negative errno value otherwise and rte_errno is set. 3011 */ 3012 int 3013 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev, 3014 struct rte_flow_item_eth *eth_spec, 3015 struct rte_flow_item_eth *eth_mask, 3016 struct rte_flow_item_vlan *vlan_spec, 3017 struct rte_flow_item_vlan *vlan_mask) 3018 { 3019 struct priv *priv = dev->data->dev_private; 3020 const struct rte_flow_attr attr = { 3021 .ingress = 1, 3022 .priority = MLX5_CTRL_FLOW_PRIORITY, 3023 }; 3024 struct rte_flow_item items[] = { 3025 { 3026 .type = RTE_FLOW_ITEM_TYPE_ETH, 3027 .spec = eth_spec, 3028 .last = NULL, 3029 .mask = eth_mask, 3030 }, 3031 { 3032 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN : 3033 RTE_FLOW_ITEM_TYPE_END, 3034 .spec = vlan_spec, 3035 .last = NULL, 3036 .mask = vlan_mask, 3037 }, 3038 { 3039 .type = RTE_FLOW_ITEM_TYPE_END, 3040 }, 3041 }; 3042 uint16_t queue[priv->reta_idx_n]; 3043 struct rte_flow_action_rss action_rss = { 3044 .func = RTE_ETH_HASH_FUNCTION_DEFAULT, 3045 .level = 0, 3046 .types = priv->rss_conf.rss_hf, 3047 .key_len = priv->rss_conf.rss_key_len, 3048 .queue_num = priv->reta_idx_n, 3049 .key = priv->rss_conf.rss_key, 3050 .queue = queue, 3051 }; 3052 struct rte_flow_action actions[] = { 3053 { 3054 .type = RTE_FLOW_ACTION_TYPE_RSS, 3055 .conf = &action_rss, 3056 }, 3057 { 3058 .type = RTE_FLOW_ACTION_TYPE_END, 3059 }, 3060 }; 3061 struct rte_flow *flow; 3062 struct rte_flow_error error; 3063 unsigned int i; 3064 3065 if (!priv->reta_idx_n) { 3066 rte_errno = EINVAL; 3067 return -rte_errno; 3068 } 3069 for (i = 0; i != priv->reta_idx_n; ++i) 3070 queue[i] = (*priv->reta_idx)[i]; 3071 flow = mlx5_flow_list_create(dev, &priv->ctrl_flows, &attr, items, 3072 actions, &error); 3073 if (!flow) 3074 return -rte_errno; 3075 return 0; 3076 } 3077 3078 /** 3079 * Enable a flow control configured from the control plane. 3080 * 3081 * @param dev 3082 * Pointer to Ethernet device. 3083 * @param eth_spec 3084 * An Ethernet flow spec to apply. 3085 * @param eth_mask 3086 * An Ethernet flow mask to apply. 3087 * 3088 * @return 3089 * 0 on success, a negative errno value otherwise and rte_errno is set. 3090 */ 3091 int 3092 mlx5_ctrl_flow(struct rte_eth_dev *dev, 3093 struct rte_flow_item_eth *eth_spec, 3094 struct rte_flow_item_eth *eth_mask) 3095 { 3096 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL); 3097 } 3098 3099 /** 3100 * Destroy a flow. 3101 * 3102 * @see rte_flow_destroy() 3103 * @see rte_flow_ops 3104 */ 3105 int 3106 mlx5_flow_destroy(struct rte_eth_dev *dev, 3107 struct rte_flow *flow, 3108 struct rte_flow_error *error __rte_unused) 3109 { 3110 struct priv *priv = dev->data->dev_private; 3111 3112 mlx5_flow_list_destroy(dev, &priv->flows, flow); 3113 return 0; 3114 } 3115 3116 /** 3117 * Destroy all flows. 3118 * 3119 * @see rte_flow_flush() 3120 * @see rte_flow_ops 3121 */ 3122 int 3123 mlx5_flow_flush(struct rte_eth_dev *dev, 3124 struct rte_flow_error *error __rte_unused) 3125 { 3126 struct priv *priv = dev->data->dev_private; 3127 3128 mlx5_flow_list_flush(dev, &priv->flows); 3129 return 0; 3130 } 3131 3132 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 3133 /** 3134 * Query flow counter. 3135 * 3136 * @param cs 3137 * the counter set. 3138 * @param counter_value 3139 * returned data from the counter. 3140 * 3141 * @return 3142 * 0 on success, a negative errno value otherwise and rte_errno is set. 3143 */ 3144 static int 3145 mlx5_flow_query_count(struct ibv_counter_set *cs, 3146 struct mlx5_flow_counter_stats *counter_stats, 3147 struct rte_flow_query_count *query_count, 3148 struct rte_flow_error *error) 3149 { 3150 uint64_t counters[2]; 3151 struct ibv_query_counter_set_attr query_cs_attr = { 3152 .cs = cs, 3153 .query_flags = IBV_COUNTER_SET_FORCE_UPDATE, 3154 }; 3155 struct ibv_counter_set_data query_out = { 3156 .out = counters, 3157 .outlen = 2 * sizeof(uint64_t), 3158 }; 3159 int err = mlx5_glue->query_counter_set(&query_cs_attr, &query_out); 3160 3161 if (err) 3162 return rte_flow_error_set(error, err, 3163 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 3164 NULL, 3165 "cannot read counter"); 3166 query_count->hits_set = 1; 3167 query_count->bytes_set = 1; 3168 query_count->hits = counters[0] - counter_stats->hits; 3169 query_count->bytes = counters[1] - counter_stats->bytes; 3170 if (query_count->reset) { 3171 counter_stats->hits = counters[0]; 3172 counter_stats->bytes = counters[1]; 3173 } 3174 return 0; 3175 } 3176 3177 /** 3178 * Query a flows. 3179 * 3180 * @see rte_flow_query() 3181 * @see rte_flow_ops 3182 */ 3183 int 3184 mlx5_flow_query(struct rte_eth_dev *dev __rte_unused, 3185 struct rte_flow *flow, 3186 const struct rte_flow_action *action __rte_unused, 3187 void *data, 3188 struct rte_flow_error *error) 3189 { 3190 if (flow->cs) { 3191 int ret; 3192 3193 ret = mlx5_flow_query_count(flow->cs, 3194 &flow->counter_stats, 3195 (struct rte_flow_query_count *)data, 3196 error); 3197 if (ret) 3198 return ret; 3199 } else { 3200 return rte_flow_error_set(error, EINVAL, 3201 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 3202 NULL, 3203 "no counter found for flow"); 3204 } 3205 return 0; 3206 } 3207 #endif 3208 3209 /** 3210 * Isolated mode. 3211 * 3212 * @see rte_flow_isolate() 3213 * @see rte_flow_ops 3214 */ 3215 int 3216 mlx5_flow_isolate(struct rte_eth_dev *dev, 3217 int enable, 3218 struct rte_flow_error *error) 3219 { 3220 struct priv *priv = dev->data->dev_private; 3221 3222 if (dev->data->dev_started) { 3223 rte_flow_error_set(error, EBUSY, 3224 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 3225 NULL, 3226 "port must be stopped first"); 3227 return -rte_errno; 3228 } 3229 priv->isolated = !!enable; 3230 if (enable) 3231 dev->dev_ops = &mlx5_dev_ops_isolate; 3232 else 3233 dev->dev_ops = &mlx5_dev_ops; 3234 return 0; 3235 } 3236 3237 /** 3238 * Convert a flow director filter to a generic flow. 3239 * 3240 * @param dev 3241 * Pointer to Ethernet device. 3242 * @param fdir_filter 3243 * Flow director filter to add. 3244 * @param attributes 3245 * Generic flow parameters structure. 3246 * 3247 * @return 3248 * 0 on success, a negative errno value otherwise and rte_errno is set. 3249 */ 3250 static int 3251 mlx5_fdir_filter_convert(struct rte_eth_dev *dev, 3252 const struct rte_eth_fdir_filter *fdir_filter, 3253 struct mlx5_fdir *attributes) 3254 { 3255 struct priv *priv = dev->data->dev_private; 3256 const struct rte_eth_fdir_input *input = &fdir_filter->input; 3257 const struct rte_eth_fdir_masks *mask = 3258 &dev->data->dev_conf.fdir_conf.mask; 3259 3260 /* Validate queue number. */ 3261 if (fdir_filter->action.rx_queue >= priv->rxqs_n) { 3262 DRV_LOG(ERR, "port %u invalid queue number %d", 3263 dev->data->port_id, fdir_filter->action.rx_queue); 3264 rte_errno = EINVAL; 3265 return -rte_errno; 3266 } 3267 attributes->attr.ingress = 1; 3268 attributes->items[0] = (struct rte_flow_item) { 3269 .type = RTE_FLOW_ITEM_TYPE_ETH, 3270 .spec = &attributes->l2, 3271 .mask = &attributes->l2_mask, 3272 }; 3273 switch (fdir_filter->action.behavior) { 3274 case RTE_ETH_FDIR_ACCEPT: 3275 attributes->actions[0] = (struct rte_flow_action){ 3276 .type = RTE_FLOW_ACTION_TYPE_QUEUE, 3277 .conf = &attributes->queue, 3278 }; 3279 break; 3280 case RTE_ETH_FDIR_REJECT: 3281 attributes->actions[0] = (struct rte_flow_action){ 3282 .type = RTE_FLOW_ACTION_TYPE_DROP, 3283 }; 3284 break; 3285 default: 3286 DRV_LOG(ERR, "port %u invalid behavior %d", 3287 dev->data->port_id, 3288 fdir_filter->action.behavior); 3289 rte_errno = ENOTSUP; 3290 return -rte_errno; 3291 } 3292 attributes->queue.index = fdir_filter->action.rx_queue; 3293 /* Handle L3. */ 3294 switch (fdir_filter->input.flow_type) { 3295 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: 3296 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: 3297 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: 3298 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 3299 .src_addr = input->flow.ip4_flow.src_ip, 3300 .dst_addr = input->flow.ip4_flow.dst_ip, 3301 .time_to_live = input->flow.ip4_flow.ttl, 3302 .type_of_service = input->flow.ip4_flow.tos, 3303 .next_proto_id = input->flow.ip4_flow.proto, 3304 }; 3305 attributes->l3_mask.ipv4.hdr = (struct ipv4_hdr){ 3306 .src_addr = mask->ipv4_mask.src_ip, 3307 .dst_addr = mask->ipv4_mask.dst_ip, 3308 .time_to_live = mask->ipv4_mask.ttl, 3309 .type_of_service = mask->ipv4_mask.tos, 3310 .next_proto_id = mask->ipv4_mask.proto, 3311 }; 3312 attributes->items[1] = (struct rte_flow_item){ 3313 .type = RTE_FLOW_ITEM_TYPE_IPV4, 3314 .spec = &attributes->l3, 3315 .mask = &attributes->l3_mask, 3316 }; 3317 break; 3318 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: 3319 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: 3320 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: 3321 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 3322 .hop_limits = input->flow.ipv6_flow.hop_limits, 3323 .proto = input->flow.ipv6_flow.proto, 3324 }; 3325 3326 memcpy(attributes->l3.ipv6.hdr.src_addr, 3327 input->flow.ipv6_flow.src_ip, 3328 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 3329 memcpy(attributes->l3.ipv6.hdr.dst_addr, 3330 input->flow.ipv6_flow.dst_ip, 3331 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 3332 memcpy(attributes->l3_mask.ipv6.hdr.src_addr, 3333 mask->ipv6_mask.src_ip, 3334 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr)); 3335 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr, 3336 mask->ipv6_mask.dst_ip, 3337 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr)); 3338 attributes->items[1] = (struct rte_flow_item){ 3339 .type = RTE_FLOW_ITEM_TYPE_IPV6, 3340 .spec = &attributes->l3, 3341 .mask = &attributes->l3_mask, 3342 }; 3343 break; 3344 default: 3345 DRV_LOG(ERR, "port %u invalid flow type%d", 3346 dev->data->port_id, fdir_filter->input.flow_type); 3347 rte_errno = ENOTSUP; 3348 return -rte_errno; 3349 } 3350 /* Handle L4. */ 3351 switch (fdir_filter->input.flow_type) { 3352 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: 3353 attributes->l4.udp.hdr = (struct udp_hdr){ 3354 .src_port = input->flow.udp4_flow.src_port, 3355 .dst_port = input->flow.udp4_flow.dst_port, 3356 }; 3357 attributes->l4_mask.udp.hdr = (struct udp_hdr){ 3358 .src_port = mask->src_port_mask, 3359 .dst_port = mask->dst_port_mask, 3360 }; 3361 attributes->items[2] = (struct rte_flow_item){ 3362 .type = RTE_FLOW_ITEM_TYPE_UDP, 3363 .spec = &attributes->l4, 3364 .mask = &attributes->l4_mask, 3365 }; 3366 break; 3367 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: 3368 attributes->l4.tcp.hdr = (struct tcp_hdr){ 3369 .src_port = input->flow.tcp4_flow.src_port, 3370 .dst_port = input->flow.tcp4_flow.dst_port, 3371 }; 3372 attributes->l4_mask.tcp.hdr = (struct tcp_hdr){ 3373 .src_port = mask->src_port_mask, 3374 .dst_port = mask->dst_port_mask, 3375 }; 3376 attributes->items[2] = (struct rte_flow_item){ 3377 .type = RTE_FLOW_ITEM_TYPE_TCP, 3378 .spec = &attributes->l4, 3379 .mask = &attributes->l4_mask, 3380 }; 3381 break; 3382 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: 3383 attributes->l4.udp.hdr = (struct udp_hdr){ 3384 .src_port = input->flow.udp6_flow.src_port, 3385 .dst_port = input->flow.udp6_flow.dst_port, 3386 }; 3387 attributes->l4_mask.udp.hdr = (struct udp_hdr){ 3388 .src_port = mask->src_port_mask, 3389 .dst_port = mask->dst_port_mask, 3390 }; 3391 attributes->items[2] = (struct rte_flow_item){ 3392 .type = RTE_FLOW_ITEM_TYPE_UDP, 3393 .spec = &attributes->l4, 3394 .mask = &attributes->l4_mask, 3395 }; 3396 break; 3397 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: 3398 attributes->l4.tcp.hdr = (struct tcp_hdr){ 3399 .src_port = input->flow.tcp6_flow.src_port, 3400 .dst_port = input->flow.tcp6_flow.dst_port, 3401 }; 3402 attributes->l4_mask.tcp.hdr = (struct tcp_hdr){ 3403 .src_port = mask->src_port_mask, 3404 .dst_port = mask->dst_port_mask, 3405 }; 3406 attributes->items[2] = (struct rte_flow_item){ 3407 .type = RTE_FLOW_ITEM_TYPE_TCP, 3408 .spec = &attributes->l4, 3409 .mask = &attributes->l4_mask, 3410 }; 3411 break; 3412 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: 3413 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: 3414 break; 3415 default: 3416 DRV_LOG(ERR, "port %u invalid flow type%d", 3417 dev->data->port_id, fdir_filter->input.flow_type); 3418 rte_errno = ENOTSUP; 3419 return -rte_errno; 3420 } 3421 return 0; 3422 } 3423 3424 /** 3425 * Add new flow director filter and store it in list. 3426 * 3427 * @param dev 3428 * Pointer to Ethernet device. 3429 * @param fdir_filter 3430 * Flow director filter to add. 3431 * 3432 * @return 3433 * 0 on success, a negative errno value otherwise and rte_errno is set. 3434 */ 3435 static int 3436 mlx5_fdir_filter_add(struct rte_eth_dev *dev, 3437 const struct rte_eth_fdir_filter *fdir_filter) 3438 { 3439 struct priv *priv = dev->data->dev_private; 3440 struct mlx5_fdir attributes = { 3441 .attr.group = 0, 3442 .l2_mask = { 3443 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00", 3444 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00", 3445 .type = 0, 3446 }, 3447 }; 3448 struct mlx5_flow_parse parser = { 3449 .layer = HASH_RXQ_ETH, 3450 }; 3451 struct rte_flow_error error; 3452 struct rte_flow *flow; 3453 int ret; 3454 3455 ret = mlx5_fdir_filter_convert(dev, fdir_filter, &attributes); 3456 if (ret) 3457 return ret; 3458 ret = mlx5_flow_convert(dev, &attributes.attr, attributes.items, 3459 attributes.actions, &error, &parser); 3460 if (ret) 3461 return ret; 3462 flow = mlx5_flow_list_create(dev, &priv->flows, &attributes.attr, 3463 attributes.items, attributes.actions, 3464 &error); 3465 if (flow) { 3466 DRV_LOG(DEBUG, "port %u FDIR created %p", dev->data->port_id, 3467 (void *)flow); 3468 return 0; 3469 } 3470 return -rte_errno; 3471 } 3472 3473 /** 3474 * Delete specific filter. 3475 * 3476 * @param dev 3477 * Pointer to Ethernet device. 3478 * @param fdir_filter 3479 * Filter to be deleted. 3480 * 3481 * @return 3482 * 0 on success, a negative errno value otherwise and rte_errno is set. 3483 */ 3484 static int 3485 mlx5_fdir_filter_delete(struct rte_eth_dev *dev, 3486 const struct rte_eth_fdir_filter *fdir_filter) 3487 { 3488 struct priv *priv = dev->data->dev_private; 3489 struct mlx5_fdir attributes = { 3490 .attr.group = 0, 3491 }; 3492 struct mlx5_flow_parse parser = { 3493 .create = 1, 3494 .layer = HASH_RXQ_ETH, 3495 }; 3496 struct rte_flow_error error; 3497 struct rte_flow *flow; 3498 unsigned int i; 3499 int ret; 3500 3501 ret = mlx5_fdir_filter_convert(dev, fdir_filter, &attributes); 3502 if (ret) 3503 return ret; 3504 ret = mlx5_flow_convert(dev, &attributes.attr, attributes.items, 3505 attributes.actions, &error, &parser); 3506 if (ret) 3507 goto exit; 3508 /* 3509 * Special case for drop action which is only set in the 3510 * specifications when the flow is created. In this situation the 3511 * drop specification is missing. 3512 */ 3513 if (parser.drop) { 3514 struct ibv_flow_spec_action_drop *drop; 3515 3516 drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr + 3517 parser.queue[HASH_RXQ_ETH].offset); 3518 *drop = (struct ibv_flow_spec_action_drop){ 3519 .type = IBV_FLOW_SPEC_ACTION_DROP, 3520 .size = sizeof(struct ibv_flow_spec_action_drop), 3521 }; 3522 parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++; 3523 } 3524 TAILQ_FOREACH(flow, &priv->flows, next) { 3525 struct ibv_flow_attr *attr; 3526 struct ibv_spec_header *attr_h; 3527 void *spec; 3528 struct ibv_flow_attr *flow_attr; 3529 struct ibv_spec_header *flow_h; 3530 void *flow_spec; 3531 unsigned int specs_n; 3532 unsigned int queue_id = parser.drop ? HASH_RXQ_ETH : 3533 parser.layer; 3534 3535 attr = parser.queue[queue_id].ibv_attr; 3536 flow_attr = flow->frxq[queue_id].ibv_attr; 3537 /* Compare first the attributes. */ 3538 if (!flow_attr || 3539 memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr))) 3540 continue; 3541 if (attr->num_of_specs == 0) 3542 continue; 3543 spec = (void *)((uintptr_t)attr + 3544 sizeof(struct ibv_flow_attr)); 3545 flow_spec = (void *)((uintptr_t)flow_attr + 3546 sizeof(struct ibv_flow_attr)); 3547 specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs); 3548 for (i = 0; i != specs_n; ++i) { 3549 attr_h = spec; 3550 flow_h = flow_spec; 3551 if (memcmp(spec, flow_spec, 3552 RTE_MIN(attr_h->size, flow_h->size))) 3553 goto wrong_flow; 3554 spec = (void *)((uintptr_t)spec + attr_h->size); 3555 flow_spec = (void *)((uintptr_t)flow_spec + 3556 flow_h->size); 3557 } 3558 /* At this point, the flow match. */ 3559 break; 3560 wrong_flow: 3561 /* The flow does not match. */ 3562 continue; 3563 } 3564 if (flow) 3565 mlx5_flow_list_destroy(dev, &priv->flows, flow); 3566 exit: 3567 if (ret) 3568 ret = rte_errno; /* Save rte_errno before cleanup. */ 3569 for (i = 0; i != hash_rxq_init_n; ++i) { 3570 if (parser.queue[i].ibv_attr) 3571 rte_free(parser.queue[i].ibv_attr); 3572 } 3573 if (ret) 3574 rte_errno = ret; /* Restore rte_errno. */ 3575 return -rte_errno; 3576 } 3577 3578 /** 3579 * Update queue for specific filter. 3580 * 3581 * @param dev 3582 * Pointer to Ethernet device. 3583 * @param fdir_filter 3584 * Filter to be updated. 3585 * 3586 * @return 3587 * 0 on success, a negative errno value otherwise and rte_errno is set. 3588 */ 3589 static int 3590 mlx5_fdir_filter_update(struct rte_eth_dev *dev, 3591 const struct rte_eth_fdir_filter *fdir_filter) 3592 { 3593 int ret; 3594 3595 ret = mlx5_fdir_filter_delete(dev, fdir_filter); 3596 if (ret) 3597 return ret; 3598 return mlx5_fdir_filter_add(dev, fdir_filter); 3599 } 3600 3601 /** 3602 * Flush all filters. 3603 * 3604 * @param dev 3605 * Pointer to Ethernet device. 3606 */ 3607 static void 3608 mlx5_fdir_filter_flush(struct rte_eth_dev *dev) 3609 { 3610 struct priv *priv = dev->data->dev_private; 3611 3612 mlx5_flow_list_flush(dev, &priv->flows); 3613 } 3614 3615 /** 3616 * Get flow director information. 3617 * 3618 * @param dev 3619 * Pointer to Ethernet device. 3620 * @param[out] fdir_info 3621 * Resulting flow director information. 3622 */ 3623 static void 3624 mlx5_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info) 3625 { 3626 struct rte_eth_fdir_masks *mask = 3627 &dev->data->dev_conf.fdir_conf.mask; 3628 3629 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode; 3630 fdir_info->guarant_spc = 0; 3631 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask)); 3632 fdir_info->max_flexpayload = 0; 3633 fdir_info->flow_types_mask[0] = 0; 3634 fdir_info->flex_payload_unit = 0; 3635 fdir_info->max_flex_payload_segment_num = 0; 3636 fdir_info->flex_payload_limit = 0; 3637 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf)); 3638 } 3639 3640 /** 3641 * Deal with flow director operations. 3642 * 3643 * @param dev 3644 * Pointer to Ethernet device. 3645 * @param filter_op 3646 * Operation to perform. 3647 * @param arg 3648 * Pointer to operation-specific structure. 3649 * 3650 * @return 3651 * 0 on success, a negative errno value otherwise and rte_errno is set. 3652 */ 3653 static int 3654 mlx5_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op, 3655 void *arg) 3656 { 3657 enum rte_fdir_mode fdir_mode = 3658 dev->data->dev_conf.fdir_conf.mode; 3659 3660 if (filter_op == RTE_ETH_FILTER_NOP) 3661 return 0; 3662 if (fdir_mode != RTE_FDIR_MODE_PERFECT && 3663 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) { 3664 DRV_LOG(ERR, "port %u flow director mode %d not supported", 3665 dev->data->port_id, fdir_mode); 3666 rte_errno = EINVAL; 3667 return -rte_errno; 3668 } 3669 switch (filter_op) { 3670 case RTE_ETH_FILTER_ADD: 3671 return mlx5_fdir_filter_add(dev, arg); 3672 case RTE_ETH_FILTER_UPDATE: 3673 return mlx5_fdir_filter_update(dev, arg); 3674 case RTE_ETH_FILTER_DELETE: 3675 return mlx5_fdir_filter_delete(dev, arg); 3676 case RTE_ETH_FILTER_FLUSH: 3677 mlx5_fdir_filter_flush(dev); 3678 break; 3679 case RTE_ETH_FILTER_INFO: 3680 mlx5_fdir_info_get(dev, arg); 3681 break; 3682 default: 3683 DRV_LOG(DEBUG, "port %u unknown operation %u", 3684 dev->data->port_id, filter_op); 3685 rte_errno = EINVAL; 3686 return -rte_errno; 3687 } 3688 return 0; 3689 } 3690 3691 /** 3692 * Manage filter operations. 3693 * 3694 * @param dev 3695 * Pointer to Ethernet device structure. 3696 * @param filter_type 3697 * Filter type. 3698 * @param filter_op 3699 * Operation to perform. 3700 * @param arg 3701 * Pointer to operation-specific structure. 3702 * 3703 * @return 3704 * 0 on success, a negative errno value otherwise and rte_errno is set. 3705 */ 3706 int 3707 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev, 3708 enum rte_filter_type filter_type, 3709 enum rte_filter_op filter_op, 3710 void *arg) 3711 { 3712 switch (filter_type) { 3713 case RTE_ETH_FILTER_GENERIC: 3714 if (filter_op != RTE_ETH_FILTER_GET) { 3715 rte_errno = EINVAL; 3716 return -rte_errno; 3717 } 3718 *(const void **)arg = &mlx5_flow_ops; 3719 return 0; 3720 case RTE_ETH_FILTER_FDIR: 3721 return mlx5_fdir_ctrl_func(dev, filter_op, arg); 3722 default: 3723 DRV_LOG(ERR, "port %u filter type (%d) not supported", 3724 dev->data->port_id, filter_type); 3725 rte_errno = ENOTSUP; 3726 return -rte_errno; 3727 } 3728 return 0; 3729 } 3730 3731 /** 3732 * Detect number of Verbs flow priorities supported. 3733 * 3734 * @param dev 3735 * Pointer to Ethernet device. 3736 * 3737 * @return 3738 * number of supported Verbs flow priority. 3739 */ 3740 unsigned int 3741 mlx5_get_max_verbs_prio(struct rte_eth_dev *dev) 3742 { 3743 struct priv *priv = dev->data->dev_private; 3744 unsigned int verb_priorities = MLX5_VERBS_FLOW_PRIO_8; 3745 struct { 3746 struct ibv_flow_attr attr; 3747 struct ibv_flow_spec_eth eth; 3748 struct ibv_flow_spec_action_drop drop; 3749 } flow_attr = { 3750 .attr = { 3751 .num_of_specs = 2, 3752 }, 3753 .eth = { 3754 .type = IBV_FLOW_SPEC_ETH, 3755 .size = sizeof(struct ibv_flow_spec_eth), 3756 }, 3757 .drop = { 3758 .size = sizeof(struct ibv_flow_spec_action_drop), 3759 .type = IBV_FLOW_SPEC_ACTION_DROP, 3760 }, 3761 }; 3762 struct ibv_flow *flow; 3763 3764 do { 3765 flow_attr.attr.priority = verb_priorities - 1; 3766 flow = mlx5_glue->create_flow(priv->flow_drop_queue->qp, 3767 &flow_attr.attr); 3768 if (flow) { 3769 claim_zero(mlx5_glue->destroy_flow(flow)); 3770 /* Try more priorities. */ 3771 verb_priorities *= 2; 3772 } else { 3773 /* Failed, restore last right number. */ 3774 verb_priorities /= 2; 3775 break; 3776 } 3777 } while (1); 3778 DRV_LOG(DEBUG, "port %u Verbs flow priorities: %d," 3779 " user flow priorities: %d", 3780 dev->data->port_id, verb_priorities, MLX5_CTRL_FLOW_PRIORITY); 3781 return verb_priorities; 3782 } 3783