1 /*- 2 * BSD LICENSE 3 * 4 * Copyright 2016 6WIND S.A. 5 * Copyright 2016 Mellanox. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of 6WIND S.A. nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/queue.h> 35 #include <string.h> 36 37 /* Verbs header. */ 38 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ 39 #ifdef PEDANTIC 40 #pragma GCC diagnostic ignored "-Wpedantic" 41 #endif 42 #include <infiniband/verbs.h> 43 #ifdef PEDANTIC 44 #pragma GCC diagnostic error "-Wpedantic" 45 #endif 46 47 #include <rte_ethdev.h> 48 #include <rte_flow.h> 49 #include <rte_flow_driver.h> 50 #include <rte_malloc.h> 51 52 #include "mlx5.h" 53 #include "mlx5_prm.h" 54 55 /* Define minimal priority for control plane flows. */ 56 #define MLX5_CTRL_FLOW_PRIORITY 4 57 58 /* Internet Protocol versions. */ 59 #define MLX5_IPV4 4 60 #define MLX5_IPV6 6 61 62 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 63 struct ibv_counter_set_init_attr { 64 int dummy; 65 }; 66 struct ibv_flow_spec_counter_action { 67 int dummy; 68 }; 69 struct ibv_counter_set { 70 int dummy; 71 }; 72 73 static inline int 74 ibv_destroy_counter_set(struct ibv_counter_set *cs) 75 { 76 (void)cs; 77 return -ENOTSUP; 78 } 79 #endif 80 81 /* Dev ops structure defined in mlx5.c */ 82 extern const struct eth_dev_ops mlx5_dev_ops; 83 extern const struct eth_dev_ops mlx5_dev_ops_isolate; 84 85 static int 86 mlx5_flow_create_eth(const struct rte_flow_item *item, 87 const void *default_mask, 88 void *data); 89 90 static int 91 mlx5_flow_create_vlan(const struct rte_flow_item *item, 92 const void *default_mask, 93 void *data); 94 95 static int 96 mlx5_flow_create_ipv4(const struct rte_flow_item *item, 97 const void *default_mask, 98 void *data); 99 100 static int 101 mlx5_flow_create_ipv6(const struct rte_flow_item *item, 102 const void *default_mask, 103 void *data); 104 105 static int 106 mlx5_flow_create_udp(const struct rte_flow_item *item, 107 const void *default_mask, 108 void *data); 109 110 static int 111 mlx5_flow_create_tcp(const struct rte_flow_item *item, 112 const void *default_mask, 113 void *data); 114 115 static int 116 mlx5_flow_create_vxlan(const struct rte_flow_item *item, 117 const void *default_mask, 118 void *data); 119 120 struct mlx5_flow_parse; 121 122 static void 123 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, 124 unsigned int size); 125 126 static int 127 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id); 128 129 static int 130 mlx5_flow_create_count(struct priv *priv, struct mlx5_flow_parse *parser); 131 132 /* Hash RX queue types. */ 133 enum hash_rxq_type { 134 HASH_RXQ_TCPV4, 135 HASH_RXQ_UDPV4, 136 HASH_RXQ_IPV4, 137 HASH_RXQ_TCPV6, 138 HASH_RXQ_UDPV6, 139 HASH_RXQ_IPV6, 140 HASH_RXQ_ETH, 141 }; 142 143 /* Initialization data for hash RX queue. */ 144 struct hash_rxq_init { 145 uint64_t hash_fields; /* Fields that participate in the hash. */ 146 uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */ 147 unsigned int flow_priority; /* Flow priority to use. */ 148 unsigned int ip_version; /* Internet protocol. */ 149 }; 150 151 /* Initialization data for hash RX queues. */ 152 const struct hash_rxq_init hash_rxq_init[] = { 153 [HASH_RXQ_TCPV4] = { 154 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 155 IBV_RX_HASH_DST_IPV4 | 156 IBV_RX_HASH_SRC_PORT_TCP | 157 IBV_RX_HASH_DST_PORT_TCP), 158 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP, 159 .flow_priority = 0, 160 .ip_version = MLX5_IPV4, 161 }, 162 [HASH_RXQ_UDPV4] = { 163 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 164 IBV_RX_HASH_DST_IPV4 | 165 IBV_RX_HASH_SRC_PORT_UDP | 166 IBV_RX_HASH_DST_PORT_UDP), 167 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP, 168 .flow_priority = 0, 169 .ip_version = MLX5_IPV4, 170 }, 171 [HASH_RXQ_IPV4] = { 172 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 173 IBV_RX_HASH_DST_IPV4), 174 .dpdk_rss_hf = (ETH_RSS_IPV4 | 175 ETH_RSS_FRAG_IPV4), 176 .flow_priority = 1, 177 .ip_version = MLX5_IPV4, 178 }, 179 [HASH_RXQ_TCPV6] = { 180 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 181 IBV_RX_HASH_DST_IPV6 | 182 IBV_RX_HASH_SRC_PORT_TCP | 183 IBV_RX_HASH_DST_PORT_TCP), 184 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP, 185 .flow_priority = 0, 186 .ip_version = MLX5_IPV6, 187 }, 188 [HASH_RXQ_UDPV6] = { 189 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 190 IBV_RX_HASH_DST_IPV6 | 191 IBV_RX_HASH_SRC_PORT_UDP | 192 IBV_RX_HASH_DST_PORT_UDP), 193 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP, 194 .flow_priority = 0, 195 .ip_version = MLX5_IPV6, 196 }, 197 [HASH_RXQ_IPV6] = { 198 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 199 IBV_RX_HASH_DST_IPV6), 200 .dpdk_rss_hf = (ETH_RSS_IPV6 | 201 ETH_RSS_FRAG_IPV6), 202 .flow_priority = 1, 203 .ip_version = MLX5_IPV6, 204 }, 205 [HASH_RXQ_ETH] = { 206 .hash_fields = 0, 207 .dpdk_rss_hf = 0, 208 .flow_priority = 2, 209 }, 210 }; 211 212 /* Number of entries in hash_rxq_init[]. */ 213 const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init); 214 215 /** Structure for holding counter stats. */ 216 struct mlx5_flow_counter_stats { 217 uint64_t hits; /**< Number of packets matched by the rule. */ 218 uint64_t bytes; /**< Number of bytes matched by the rule. */ 219 }; 220 221 /** Structure for Drop queue. */ 222 struct mlx5_hrxq_drop { 223 struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */ 224 struct ibv_qp *qp; /**< Verbs queue pair. */ 225 struct ibv_wq *wq; /**< Verbs work queue. */ 226 struct ibv_cq *cq; /**< Verbs completion queue. */ 227 }; 228 229 /* Flows structures. */ 230 struct mlx5_flow { 231 uint64_t hash_fields; /**< Fields that participate in the hash. */ 232 struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ 233 struct ibv_flow *ibv_flow; /**< Verbs flow. */ 234 struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */ 235 }; 236 237 /* Drop flows structures. */ 238 struct mlx5_flow_drop { 239 struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ 240 struct ibv_flow *ibv_flow; /**< Verbs flow. */ 241 }; 242 243 struct rte_flow { 244 TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */ 245 uint32_t mark:1; /**< Set if the flow is marked. */ 246 uint32_t drop:1; /**< Drop queue. */ 247 uint16_t queues_n; /**< Number of entries in queue[]. */ 248 uint16_t (*queues)[]; /**< Queues indexes to use. */ 249 struct rte_eth_rss_conf rss_conf; /**< RSS configuration */ 250 uint8_t rss_key[40]; /**< copy of the RSS key. */ 251 struct ibv_counter_set *cs; /**< Holds the counters for the rule. */ 252 struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */ 253 union { 254 struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)]; 255 /**< Flow with Rx queue. */ 256 struct mlx5_flow_drop drxq; /**< Flow with drop Rx queue. */ 257 }; 258 }; 259 260 /** Static initializer for items. */ 261 #define ITEMS(...) \ 262 (const enum rte_flow_item_type []){ \ 263 __VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \ 264 } 265 266 /** Structure to generate a simple graph of layers supported by the NIC. */ 267 struct mlx5_flow_items { 268 /** List of possible actions for these items. */ 269 const enum rte_flow_action_type *const actions; 270 /** Bit-masks corresponding to the possibilities for the item. */ 271 const void *mask; 272 /** 273 * Default bit-masks to use when item->mask is not provided. When 274 * \default_mask is also NULL, the full supported bit-mask (\mask) is 275 * used instead. 276 */ 277 const void *default_mask; 278 /** Bit-masks size in bytes. */ 279 const unsigned int mask_sz; 280 /** 281 * Conversion function from rte_flow to NIC specific flow. 282 * 283 * @param item 284 * rte_flow item to convert. 285 * @param default_mask 286 * Default bit-masks to use when item->mask is not provided. 287 * @param data 288 * Internal structure to store the conversion. 289 * 290 * @return 291 * 0 on success, negative value otherwise. 292 */ 293 int (*convert)(const struct rte_flow_item *item, 294 const void *default_mask, 295 void *data); 296 /** Size in bytes of the destination structure. */ 297 const unsigned int dst_sz; 298 /** List of possible following items. */ 299 const enum rte_flow_item_type *const items; 300 }; 301 302 /** Valid action for this PMD. */ 303 static const enum rte_flow_action_type valid_actions[] = { 304 RTE_FLOW_ACTION_TYPE_DROP, 305 RTE_FLOW_ACTION_TYPE_QUEUE, 306 RTE_FLOW_ACTION_TYPE_MARK, 307 RTE_FLOW_ACTION_TYPE_FLAG, 308 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 309 RTE_FLOW_ACTION_TYPE_COUNT, 310 #endif 311 RTE_FLOW_ACTION_TYPE_END, 312 }; 313 314 /** Graph of supported items and associated actions. */ 315 static const struct mlx5_flow_items mlx5_flow_items[] = { 316 [RTE_FLOW_ITEM_TYPE_END] = { 317 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 318 RTE_FLOW_ITEM_TYPE_VXLAN), 319 }, 320 [RTE_FLOW_ITEM_TYPE_ETH] = { 321 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN, 322 RTE_FLOW_ITEM_TYPE_IPV4, 323 RTE_FLOW_ITEM_TYPE_IPV6), 324 .actions = valid_actions, 325 .mask = &(const struct rte_flow_item_eth){ 326 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", 327 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff", 328 .type = -1, 329 }, 330 .default_mask = &rte_flow_item_eth_mask, 331 .mask_sz = sizeof(struct rte_flow_item_eth), 332 .convert = mlx5_flow_create_eth, 333 .dst_sz = sizeof(struct ibv_flow_spec_eth), 334 }, 335 [RTE_FLOW_ITEM_TYPE_VLAN] = { 336 .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4, 337 RTE_FLOW_ITEM_TYPE_IPV6), 338 .actions = valid_actions, 339 .mask = &(const struct rte_flow_item_vlan){ 340 .tci = -1, 341 }, 342 .default_mask = &rte_flow_item_vlan_mask, 343 .mask_sz = sizeof(struct rte_flow_item_vlan), 344 .convert = mlx5_flow_create_vlan, 345 .dst_sz = 0, 346 }, 347 [RTE_FLOW_ITEM_TYPE_IPV4] = { 348 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, 349 RTE_FLOW_ITEM_TYPE_TCP), 350 .actions = valid_actions, 351 .mask = &(const struct rte_flow_item_ipv4){ 352 .hdr = { 353 .src_addr = -1, 354 .dst_addr = -1, 355 .type_of_service = -1, 356 .next_proto_id = -1, 357 }, 358 }, 359 .default_mask = &rte_flow_item_ipv4_mask, 360 .mask_sz = sizeof(struct rte_flow_item_ipv4), 361 .convert = mlx5_flow_create_ipv4, 362 .dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext), 363 }, 364 [RTE_FLOW_ITEM_TYPE_IPV6] = { 365 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, 366 RTE_FLOW_ITEM_TYPE_TCP), 367 .actions = valid_actions, 368 .mask = &(const struct rte_flow_item_ipv6){ 369 .hdr = { 370 .src_addr = { 371 0xff, 0xff, 0xff, 0xff, 372 0xff, 0xff, 0xff, 0xff, 373 0xff, 0xff, 0xff, 0xff, 374 0xff, 0xff, 0xff, 0xff, 375 }, 376 .dst_addr = { 377 0xff, 0xff, 0xff, 0xff, 378 0xff, 0xff, 0xff, 0xff, 379 0xff, 0xff, 0xff, 0xff, 380 0xff, 0xff, 0xff, 0xff, 381 }, 382 .vtc_flow = -1, 383 .proto = -1, 384 .hop_limits = -1, 385 }, 386 }, 387 .default_mask = &rte_flow_item_ipv6_mask, 388 .mask_sz = sizeof(struct rte_flow_item_ipv6), 389 .convert = mlx5_flow_create_ipv6, 390 .dst_sz = sizeof(struct ibv_flow_spec_ipv6), 391 }, 392 [RTE_FLOW_ITEM_TYPE_UDP] = { 393 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN), 394 .actions = valid_actions, 395 .mask = &(const struct rte_flow_item_udp){ 396 .hdr = { 397 .src_port = -1, 398 .dst_port = -1, 399 }, 400 }, 401 .default_mask = &rte_flow_item_udp_mask, 402 .mask_sz = sizeof(struct rte_flow_item_udp), 403 .convert = mlx5_flow_create_udp, 404 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), 405 }, 406 [RTE_FLOW_ITEM_TYPE_TCP] = { 407 .actions = valid_actions, 408 .mask = &(const struct rte_flow_item_tcp){ 409 .hdr = { 410 .src_port = -1, 411 .dst_port = -1, 412 }, 413 }, 414 .default_mask = &rte_flow_item_tcp_mask, 415 .mask_sz = sizeof(struct rte_flow_item_tcp), 416 .convert = mlx5_flow_create_tcp, 417 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), 418 }, 419 [RTE_FLOW_ITEM_TYPE_VXLAN] = { 420 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH), 421 .actions = valid_actions, 422 .mask = &(const struct rte_flow_item_vxlan){ 423 .vni = "\xff\xff\xff", 424 }, 425 .default_mask = &rte_flow_item_vxlan_mask, 426 .mask_sz = sizeof(struct rte_flow_item_vxlan), 427 .convert = mlx5_flow_create_vxlan, 428 .dst_sz = sizeof(struct ibv_flow_spec_tunnel), 429 }, 430 }; 431 432 /** Structure to pass to the conversion function. */ 433 struct mlx5_flow_parse { 434 uint32_t inner; /**< Set once VXLAN is encountered. */ 435 uint32_t create:1; 436 /**< Whether resources should remain after a validate. */ 437 uint32_t drop:1; /**< Target is a drop queue. */ 438 uint32_t mark:1; /**< Mark is present in the flow. */ 439 uint32_t count:1; /**< Count is present in the flow. */ 440 uint32_t mark_id; /**< Mark identifier. */ 441 uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */ 442 uint16_t queues_n; /**< Number of entries in queue[]. */ 443 struct rte_eth_rss_conf rss_conf; /**< RSS configuration */ 444 uint8_t rss_key[40]; /**< copy of the RSS key. */ 445 enum hash_rxq_type layer; /**< Last pattern layer detected. */ 446 struct ibv_counter_set *cs; /**< Holds the counter set for the rule */ 447 union { 448 struct { 449 struct ibv_flow_attr *ibv_attr; 450 /**< Pointer to Verbs attributes. */ 451 unsigned int offset; 452 /**< Current position or total size of the attribute. */ 453 } queue[RTE_DIM(hash_rxq_init)]; 454 struct { 455 struct ibv_flow_attr *ibv_attr; 456 /**< Pointer to Verbs attributes. */ 457 unsigned int offset; 458 /**< Current position or total size of the attribute. */ 459 } drop_q; 460 }; 461 }; 462 463 static const struct rte_flow_ops mlx5_flow_ops = { 464 .validate = mlx5_flow_validate, 465 .create = mlx5_flow_create, 466 .destroy = mlx5_flow_destroy, 467 .flush = mlx5_flow_flush, 468 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 469 .query = mlx5_flow_query, 470 #else 471 .query = NULL, 472 #endif 473 .isolate = mlx5_flow_isolate, 474 }; 475 476 /* Convert FDIR request to Generic flow. */ 477 struct mlx5_fdir { 478 struct rte_flow_attr attr; 479 struct rte_flow_action actions[2]; 480 struct rte_flow_item items[4]; 481 struct rte_flow_item_eth l2; 482 union { 483 struct rte_flow_item_ipv4 ipv4; 484 struct rte_flow_item_ipv6 ipv6; 485 } l3; 486 union { 487 struct rte_flow_item_udp udp; 488 struct rte_flow_item_tcp tcp; 489 } l4; 490 struct rte_flow_action_queue queue; 491 }; 492 493 /* Verbs specification header. */ 494 struct ibv_spec_header { 495 enum ibv_flow_spec_type type; 496 uint16_t size; 497 }; 498 499 /** 500 * Check support for a given item. 501 * 502 * @param item[in] 503 * Item specification. 504 * @param mask[in] 505 * Bit-masks covering supported fields to compare with spec, last and mask in 506 * \item. 507 * @param size 508 * Bit-Mask size in bytes. 509 * 510 * @return 511 * 0 on success. 512 */ 513 static int 514 mlx5_flow_item_validate(const struct rte_flow_item *item, 515 const uint8_t *mask, unsigned int size) 516 { 517 int ret = 0; 518 519 if (!item->spec && (item->mask || item->last)) 520 return -1; 521 if (item->spec && !item->mask) { 522 unsigned int i; 523 const uint8_t *spec = item->spec; 524 525 for (i = 0; i < size; ++i) 526 if ((spec[i] | mask[i]) != mask[i]) 527 return -1; 528 } 529 if (item->last && !item->mask) { 530 unsigned int i; 531 const uint8_t *spec = item->last; 532 533 for (i = 0; i < size; ++i) 534 if ((spec[i] | mask[i]) != mask[i]) 535 return -1; 536 } 537 if (item->mask) { 538 unsigned int i; 539 const uint8_t *spec = item->mask; 540 541 for (i = 0; i < size; ++i) 542 if ((spec[i] | mask[i]) != mask[i]) 543 return -1; 544 } 545 if (item->spec && item->last) { 546 uint8_t spec[size]; 547 uint8_t last[size]; 548 const uint8_t *apply = mask; 549 unsigned int i; 550 551 if (item->mask) 552 apply = item->mask; 553 for (i = 0; i < size; ++i) { 554 spec[i] = ((const uint8_t *)item->spec)[i] & apply[i]; 555 last[i] = ((const uint8_t *)item->last)[i] & apply[i]; 556 } 557 ret = memcmp(spec, last, size); 558 } 559 return ret; 560 } 561 562 /** 563 * Copy the RSS configuration from the user ones. 564 * 565 * @param priv 566 * Pointer to private structure. 567 * @param parser 568 * Internal parser structure. 569 * @param rss_conf 570 * User RSS configuration to save. 571 * 572 * @return 573 * 0 on success, errno value on failure. 574 */ 575 static int 576 priv_flow_convert_rss_conf(struct priv *priv, 577 struct mlx5_flow_parse *parser, 578 const struct rte_eth_rss_conf *rss_conf) 579 { 580 const struct rte_eth_rss_conf *rss = 581 rss_conf ? rss_conf : &priv->rss_conf; 582 583 if (rss->rss_key_len > 40) 584 return EINVAL; 585 parser->rss_conf.rss_key_len = rss->rss_key_len; 586 parser->rss_conf.rss_hf = rss->rss_hf; 587 memcpy(parser->rss_key, rss->rss_key, rss->rss_key_len); 588 parser->rss_conf.rss_key = parser->rss_key; 589 return 0; 590 } 591 592 /** 593 * Extract attribute to the parser. 594 * 595 * @param priv 596 * Pointer to private structure. 597 * @param[in] attr 598 * Flow rule attributes. 599 * @param[out] error 600 * Perform verbose error reporting if not NULL. 601 * @param[in, out] parser 602 * Internal parser structure. 603 * 604 * @return 605 * 0 on success, a negative errno value otherwise and rte_errno is set. 606 */ 607 static int 608 priv_flow_convert_attributes(struct priv *priv, 609 const struct rte_flow_attr *attr, 610 struct rte_flow_error *error, 611 struct mlx5_flow_parse *parser) 612 { 613 (void)priv; 614 (void)parser; 615 if (attr->group) { 616 rte_flow_error_set(error, ENOTSUP, 617 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, 618 NULL, 619 "groups are not supported"); 620 return -rte_errno; 621 } 622 if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) { 623 rte_flow_error_set(error, ENOTSUP, 624 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, 625 NULL, 626 "priorities are not supported"); 627 return -rte_errno; 628 } 629 if (attr->egress) { 630 rte_flow_error_set(error, ENOTSUP, 631 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, 632 NULL, 633 "egress is not supported"); 634 return -rte_errno; 635 } 636 if (!attr->ingress) { 637 rte_flow_error_set(error, ENOTSUP, 638 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, 639 NULL, 640 "only ingress is supported"); 641 return -rte_errno; 642 } 643 return 0; 644 } 645 646 /** 647 * Extract actions request to the parser. 648 * 649 * @param priv 650 * Pointer to private structure. 651 * @param[in] actions 652 * Associated actions (list terminated by the END action). 653 * @param[out] error 654 * Perform verbose error reporting if not NULL. 655 * @param[in, out] parser 656 * Internal parser structure. 657 * 658 * @return 659 * 0 on success, a negative errno value otherwise and rte_errno is set. 660 */ 661 static int 662 priv_flow_convert_actions(struct priv *priv, 663 const struct rte_flow_action actions[], 664 struct rte_flow_error *error, 665 struct mlx5_flow_parse *parser) 666 { 667 /* 668 * Add default RSS configuration necessary for Verbs to create QP even 669 * if no RSS is necessary. 670 */ 671 priv_flow_convert_rss_conf(priv, parser, 672 (const struct rte_eth_rss_conf *) 673 &priv->rss_conf); 674 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) { 675 if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) { 676 continue; 677 } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) { 678 parser->drop = 1; 679 } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) { 680 const struct rte_flow_action_queue *queue = 681 (const struct rte_flow_action_queue *) 682 actions->conf; 683 uint16_t n; 684 uint16_t found = 0; 685 686 if (!queue || (queue->index > (priv->rxqs_n - 1))) 687 goto exit_action_not_supported; 688 for (n = 0; n < parser->queues_n; ++n) { 689 if (parser->queues[n] == queue->index) { 690 found = 1; 691 break; 692 } 693 } 694 if (parser->queues_n > 1 && !found) { 695 rte_flow_error_set(error, ENOTSUP, 696 RTE_FLOW_ERROR_TYPE_ACTION, 697 actions, 698 "queue action not in RSS queues"); 699 return -rte_errno; 700 } 701 if (!found) { 702 parser->queues_n = 1; 703 parser->queues[0] = queue->index; 704 } 705 } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { 706 const struct rte_flow_action_rss *rss = 707 (const struct rte_flow_action_rss *) 708 actions->conf; 709 uint16_t n; 710 711 if (!rss || !rss->num) { 712 rte_flow_error_set(error, EINVAL, 713 RTE_FLOW_ERROR_TYPE_ACTION, 714 actions, 715 "no valid queues"); 716 return -rte_errno; 717 } 718 if (parser->queues_n == 1) { 719 uint16_t found = 0; 720 721 assert(parser->queues_n); 722 for (n = 0; n < rss->num; ++n) { 723 if (parser->queues[0] == 724 rss->queue[n]) { 725 found = 1; 726 break; 727 } 728 } 729 if (!found) { 730 rte_flow_error_set(error, ENOTSUP, 731 RTE_FLOW_ERROR_TYPE_ACTION, 732 actions, 733 "queue action not in RSS" 734 " queues"); 735 return -rte_errno; 736 } 737 } 738 for (n = 0; n < rss->num; ++n) { 739 if (rss->queue[n] >= priv->rxqs_n) { 740 rte_flow_error_set(error, EINVAL, 741 RTE_FLOW_ERROR_TYPE_ACTION, 742 actions, 743 "queue id > number of" 744 " queues"); 745 return -rte_errno; 746 } 747 } 748 for (n = 0; n < rss->num; ++n) 749 parser->queues[n] = rss->queue[n]; 750 parser->queues_n = rss->num; 751 if (priv_flow_convert_rss_conf(priv, parser, 752 rss->rss_conf)) { 753 rte_flow_error_set(error, EINVAL, 754 RTE_FLOW_ERROR_TYPE_ACTION, 755 actions, 756 "wrong RSS configuration"); 757 return -rte_errno; 758 } 759 } else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) { 760 const struct rte_flow_action_mark *mark = 761 (const struct rte_flow_action_mark *) 762 actions->conf; 763 764 if (!mark) { 765 rte_flow_error_set(error, EINVAL, 766 RTE_FLOW_ERROR_TYPE_ACTION, 767 actions, 768 "mark must be defined"); 769 return -rte_errno; 770 } else if (mark->id >= MLX5_FLOW_MARK_MAX) { 771 rte_flow_error_set(error, ENOTSUP, 772 RTE_FLOW_ERROR_TYPE_ACTION, 773 actions, 774 "mark must be between 0" 775 " and 16777199"); 776 return -rte_errno; 777 } 778 parser->mark = 1; 779 parser->mark_id = mark->id; 780 } else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) { 781 parser->mark = 1; 782 } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT && 783 priv->counter_set_supported) { 784 parser->count = 1; 785 } else { 786 goto exit_action_not_supported; 787 } 788 } 789 if (parser->drop && parser->mark) 790 parser->mark = 0; 791 if (!parser->queues_n && !parser->drop) { 792 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, 793 NULL, "no valid action"); 794 return -rte_errno; 795 } 796 return 0; 797 exit_action_not_supported: 798 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 799 actions, "action not supported"); 800 return -rte_errno; 801 } 802 803 /** 804 * Validate items. 805 * 806 * @param priv 807 * Pointer to private structure. 808 * @param[in] items 809 * Pattern specification (list terminated by the END pattern item). 810 * @param[out] error 811 * Perform verbose error reporting if not NULL. 812 * @param[in, out] parser 813 * Internal parser structure. 814 * 815 * @return 816 * 0 on success, a negative errno value otherwise and rte_errno is set. 817 */ 818 static int 819 priv_flow_convert_items_validate(struct priv *priv, 820 const struct rte_flow_item items[], 821 struct rte_flow_error *error, 822 struct mlx5_flow_parse *parser) 823 { 824 const struct mlx5_flow_items *cur_item = mlx5_flow_items; 825 unsigned int i; 826 827 (void)priv; 828 /* Initialise the offsets to start after verbs attribute. */ 829 if (parser->drop) { 830 parser->drop_q.offset = sizeof(struct ibv_flow_attr); 831 } else { 832 for (i = 0; i != hash_rxq_init_n; ++i) 833 parser->queue[i].offset = sizeof(struct ibv_flow_attr); 834 } 835 for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { 836 const struct mlx5_flow_items *token = NULL; 837 unsigned int n; 838 int err; 839 840 if (items->type == RTE_FLOW_ITEM_TYPE_VOID) 841 continue; 842 for (i = 0; 843 cur_item->items && 844 cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END; 845 ++i) { 846 if (cur_item->items[i] == items->type) { 847 token = &mlx5_flow_items[items->type]; 848 break; 849 } 850 } 851 if (!token) 852 goto exit_item_not_supported; 853 cur_item = token; 854 err = mlx5_flow_item_validate(items, 855 (const uint8_t *)cur_item->mask, 856 cur_item->mask_sz); 857 if (err) 858 goto exit_item_not_supported; 859 if (items->type == RTE_FLOW_ITEM_TYPE_VXLAN) { 860 if (parser->inner) { 861 rte_flow_error_set(error, ENOTSUP, 862 RTE_FLOW_ERROR_TYPE_ITEM, 863 items, 864 "cannot recognize multiple" 865 " VXLAN encapsulations"); 866 return -rte_errno; 867 } 868 parser->inner = 1; 869 } 870 if (parser->drop) { 871 parser->drop_q.offset += cur_item->dst_sz; 872 } else if (parser->queues_n == 1) { 873 parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz; 874 } else { 875 for (n = 0; n != hash_rxq_init_n; ++n) 876 parser->queue[n].offset += cur_item->dst_sz; 877 } 878 } 879 if (parser->mark) { 880 for (i = 0; i != hash_rxq_init_n; ++i) 881 parser->queue[i].offset += 882 sizeof(struct ibv_flow_spec_action_tag); 883 } 884 if (parser->count) { 885 unsigned int size = sizeof(struct ibv_flow_spec_counter_action); 886 887 if (parser->drop) { 888 parser->drop_q.offset += size; 889 } else { 890 for (i = 0; i != hash_rxq_init_n; ++i) 891 parser->queue[i].offset += size; 892 } 893 } 894 return 0; 895 exit_item_not_supported: 896 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, 897 items, "item not supported"); 898 return -rte_errno; 899 } 900 901 /** 902 * Allocate memory space to store verbs flow attributes. 903 * 904 * @param priv 905 * Pointer to private structure. 906 * @param[in] priority 907 * Flow priority. 908 * @param[in] size 909 * Amount of byte to allocate. 910 * @param[out] error 911 * Perform verbose error reporting if not NULL. 912 * 913 * @return 914 * A verbs flow attribute on success, NULL otherwise. 915 */ 916 static struct ibv_flow_attr* 917 priv_flow_convert_allocate(struct priv *priv, 918 unsigned int priority, 919 unsigned int size, 920 struct rte_flow_error *error) 921 { 922 struct ibv_flow_attr *ibv_attr; 923 924 (void)priv; 925 ibv_attr = rte_calloc(__func__, 1, size, 0); 926 if (!ibv_attr) { 927 rte_flow_error_set(error, ENOMEM, 928 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 929 NULL, 930 "cannot allocate verbs spec attributes."); 931 return NULL; 932 } 933 ibv_attr->priority = priority; 934 return ibv_attr; 935 } 936 937 /** 938 * Finalise verbs flow attributes. 939 * 940 * @param priv 941 * Pointer to private structure. 942 * @param[in, out] parser 943 * Internal parser structure. 944 */ 945 static void 946 priv_flow_convert_finalise(struct priv *priv, struct mlx5_flow_parse *parser) 947 { 948 const unsigned int ipv4 = 949 hash_rxq_init[parser->layer].ip_version == MLX5_IPV4; 950 const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6; 951 const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; 952 const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4; 953 const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4; 954 const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; 955 unsigned int i; 956 957 (void)priv; 958 if (parser->layer == HASH_RXQ_ETH) { 959 goto fill; 960 } else { 961 /* 962 * This layer becomes useless as the pattern define under 963 * layers. 964 */ 965 rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr); 966 parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; 967 } 968 /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */ 969 for (i = ohmin; i != (ohmax + 1); ++i) { 970 if (!parser->queue[i].ibv_attr) 971 continue; 972 rte_free(parser->queue[i].ibv_attr); 973 parser->queue[i].ibv_attr = NULL; 974 } 975 /* Remove impossible flow according to the RSS configuration. */ 976 if (hash_rxq_init[parser->layer].dpdk_rss_hf & 977 parser->rss_conf.rss_hf) { 978 /* Remove any other flow. */ 979 for (i = hmin; i != (hmax + 1); ++i) { 980 if ((i == parser->layer) || 981 (!parser->queue[i].ibv_attr)) 982 continue; 983 rte_free(parser->queue[i].ibv_attr); 984 parser->queue[i].ibv_attr = NULL; 985 } 986 } else if (!parser->queue[ip].ibv_attr) { 987 /* no RSS possible with the current configuration. */ 988 parser->queues_n = 1; 989 return; 990 } 991 fill: 992 /* 993 * Fill missing layers in verbs specifications, or compute the correct 994 * offset to allocate the memory space for the attributes and 995 * specifications. 996 */ 997 for (i = 0; i != hash_rxq_init_n - 1; ++i) { 998 union { 999 struct ibv_flow_spec_ipv4_ext ipv4; 1000 struct ibv_flow_spec_ipv6 ipv6; 1001 struct ibv_flow_spec_tcp_udp udp_tcp; 1002 } specs; 1003 void *dst; 1004 uint16_t size; 1005 1006 if (i == parser->layer) 1007 continue; 1008 if (parser->layer == HASH_RXQ_ETH) { 1009 if (hash_rxq_init[i].ip_version == MLX5_IPV4) { 1010 size = sizeof(struct ibv_flow_spec_ipv4_ext); 1011 specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){ 1012 .type = IBV_FLOW_SPEC_IPV4_EXT | 1013 parser->inner, 1014 .size = size, 1015 }; 1016 } else { 1017 size = sizeof(struct ibv_flow_spec_ipv6); 1018 specs.ipv6 = (struct ibv_flow_spec_ipv6){ 1019 .type = IBV_FLOW_SPEC_IPV6 | 1020 parser->inner, 1021 .size = size, 1022 }; 1023 } 1024 if (parser->queue[i].ibv_attr) { 1025 dst = (void *)((uintptr_t) 1026 parser->queue[i].ibv_attr + 1027 parser->queue[i].offset); 1028 memcpy(dst, &specs, size); 1029 ++parser->queue[i].ibv_attr->num_of_specs; 1030 } 1031 parser->queue[i].offset += size; 1032 } 1033 if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) || 1034 (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) { 1035 size = sizeof(struct ibv_flow_spec_tcp_udp); 1036 specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) { 1037 .type = ((i == HASH_RXQ_UDPV4 || 1038 i == HASH_RXQ_UDPV6) ? 1039 IBV_FLOW_SPEC_UDP : 1040 IBV_FLOW_SPEC_TCP) | 1041 parser->inner, 1042 .size = size, 1043 }; 1044 if (parser->queue[i].ibv_attr) { 1045 dst = (void *)((uintptr_t) 1046 parser->queue[i].ibv_attr + 1047 parser->queue[i].offset); 1048 memcpy(dst, &specs, size); 1049 ++parser->queue[i].ibv_attr->num_of_specs; 1050 } 1051 parser->queue[i].offset += size; 1052 } 1053 } 1054 } 1055 1056 /** 1057 * Validate and convert a flow supported by the NIC. 1058 * 1059 * @param priv 1060 * Pointer to private structure. 1061 * @param[in] attr 1062 * Flow rule attributes. 1063 * @param[in] pattern 1064 * Pattern specification (list terminated by the END pattern item). 1065 * @param[in] actions 1066 * Associated actions (list terminated by the END action). 1067 * @param[out] error 1068 * Perform verbose error reporting if not NULL. 1069 * @param[in, out] parser 1070 * Internal parser structure. 1071 * 1072 * @return 1073 * 0 on success, a negative errno value otherwise and rte_errno is set. 1074 */ 1075 static int 1076 priv_flow_convert(struct priv *priv, 1077 const struct rte_flow_attr *attr, 1078 const struct rte_flow_item items[], 1079 const struct rte_flow_action actions[], 1080 struct rte_flow_error *error, 1081 struct mlx5_flow_parse *parser) 1082 { 1083 const struct mlx5_flow_items *cur_item = mlx5_flow_items; 1084 unsigned int i; 1085 int ret; 1086 1087 /* First step. Validate the attributes, items and actions. */ 1088 *parser = (struct mlx5_flow_parse){ 1089 .create = parser->create, 1090 .layer = HASH_RXQ_ETH, 1091 .mark_id = MLX5_FLOW_MARK_DEFAULT, 1092 }; 1093 ret = priv_flow_convert_attributes(priv, attr, error, parser); 1094 if (ret) 1095 return ret; 1096 ret = priv_flow_convert_actions(priv, actions, error, parser); 1097 if (ret) 1098 return ret; 1099 ret = priv_flow_convert_items_validate(priv, items, error, parser); 1100 if (ret) 1101 return ret; 1102 priv_flow_convert_finalise(priv, parser); 1103 /* 1104 * Second step. 1105 * Allocate the memory space to store verbs specifications. 1106 */ 1107 if (parser->drop) { 1108 parser->drop_q.ibv_attr = 1109 priv_flow_convert_allocate(priv, attr->priority, 1110 parser->drop_q.offset, 1111 error); 1112 if (!parser->drop_q.ibv_attr) 1113 return ENOMEM; 1114 parser->drop_q.offset = sizeof(struct ibv_flow_attr); 1115 } else if (parser->queues_n == 1) { 1116 unsigned int priority = 1117 attr->priority + 1118 hash_rxq_init[HASH_RXQ_ETH].flow_priority; 1119 unsigned int offset = parser->queue[HASH_RXQ_ETH].offset; 1120 1121 parser->queue[HASH_RXQ_ETH].ibv_attr = 1122 priv_flow_convert_allocate(priv, priority, 1123 offset, error); 1124 if (!parser->queue[HASH_RXQ_ETH].ibv_attr) 1125 return ENOMEM; 1126 parser->queue[HASH_RXQ_ETH].offset = 1127 sizeof(struct ibv_flow_attr); 1128 } else { 1129 for (i = 0; i != hash_rxq_init_n; ++i) { 1130 unsigned int priority = 1131 attr->priority + 1132 hash_rxq_init[i].flow_priority; 1133 unsigned int offset; 1134 1135 if (!(parser->rss_conf.rss_hf & 1136 hash_rxq_init[i].dpdk_rss_hf) && 1137 (i != HASH_RXQ_ETH)) 1138 continue; 1139 offset = parser->queue[i].offset; 1140 parser->queue[i].ibv_attr = 1141 priv_flow_convert_allocate(priv, priority, 1142 offset, error); 1143 if (!parser->queue[i].ibv_attr) 1144 goto exit_enomem; 1145 parser->queue[i].offset = sizeof(struct ibv_flow_attr); 1146 } 1147 } 1148 /* Third step. Conversion parse, fill the specifications. */ 1149 parser->inner = 0; 1150 for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { 1151 if (items->type == RTE_FLOW_ITEM_TYPE_VOID) 1152 continue; 1153 cur_item = &mlx5_flow_items[items->type]; 1154 ret = cur_item->convert(items, 1155 (cur_item->default_mask ? 1156 cur_item->default_mask : 1157 cur_item->mask), 1158 parser); 1159 if (ret) { 1160 rte_flow_error_set(error, ENOTSUP, 1161 RTE_FLOW_ERROR_TYPE_ITEM, 1162 items, "item not supported"); 1163 goto exit_free; 1164 } 1165 } 1166 if (parser->mark) 1167 mlx5_flow_create_flag_mark(parser, parser->mark_id); 1168 if (parser->count && parser->create) { 1169 mlx5_flow_create_count(priv, parser); 1170 if (!parser->cs) 1171 goto exit_count_error; 1172 } 1173 /* 1174 * Last step. Complete missing specification to reach the RSS 1175 * configuration. 1176 */ 1177 if (parser->queues_n > 1) { 1178 priv_flow_convert_finalise(priv, parser); 1179 } else if (!parser->drop) { 1180 /* 1181 * Action queue have their priority overridden with 1182 * Ethernet priority, this priority needs to be adjusted to 1183 * their most specific layer priority. 1184 */ 1185 parser->queue[HASH_RXQ_ETH].ibv_attr->priority = 1186 attr->priority + 1187 hash_rxq_init[parser->layer].flow_priority; 1188 } 1189 exit_free: 1190 /* Only verification is expected, all resources should be released. */ 1191 if (!parser->create) { 1192 if (parser->drop) { 1193 rte_free(parser->drop_q.ibv_attr); 1194 parser->drop_q.ibv_attr = NULL; 1195 } 1196 for (i = 0; i != hash_rxq_init_n; ++i) { 1197 if (parser->queue[i].ibv_attr) { 1198 rte_free(parser->queue[i].ibv_attr); 1199 parser->queue[i].ibv_attr = NULL; 1200 } 1201 } 1202 } 1203 return ret; 1204 exit_enomem: 1205 for (i = 0; i != hash_rxq_init_n; ++i) { 1206 if (parser->queue[i].ibv_attr) { 1207 rte_free(parser->queue[i].ibv_attr); 1208 parser->queue[i].ibv_attr = NULL; 1209 } 1210 } 1211 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1212 NULL, "cannot allocate verbs spec attributes."); 1213 return ret; 1214 exit_count_error: 1215 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1216 NULL, "cannot create counter."); 1217 return rte_errno; 1218 } 1219 1220 /** 1221 * Copy the specification created into the flow. 1222 * 1223 * @param parser 1224 * Internal parser structure. 1225 * @param src 1226 * Create specification. 1227 * @param size 1228 * Size in bytes of the specification to copy. 1229 */ 1230 static void 1231 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, 1232 unsigned int size) 1233 { 1234 unsigned int i; 1235 void *dst; 1236 1237 if (parser->drop) { 1238 dst = (void *)((uintptr_t)parser->drop_q.ibv_attr + 1239 parser->drop_q.offset); 1240 memcpy(dst, src, size); 1241 ++parser->drop_q.ibv_attr->num_of_specs; 1242 parser->drop_q.offset += size; 1243 return; 1244 } 1245 for (i = 0; i != hash_rxq_init_n; ++i) { 1246 if (!parser->queue[i].ibv_attr) 1247 continue; 1248 /* Specification must be the same l3 type or none. */ 1249 if (parser->layer == HASH_RXQ_ETH || 1250 (hash_rxq_init[parser->layer].ip_version == 1251 hash_rxq_init[i].ip_version) || 1252 (hash_rxq_init[i].ip_version == 0)) { 1253 dst = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1254 parser->queue[i].offset); 1255 memcpy(dst, src, size); 1256 ++parser->queue[i].ibv_attr->num_of_specs; 1257 parser->queue[i].offset += size; 1258 } 1259 } 1260 } 1261 1262 /** 1263 * Convert Ethernet item to Verbs specification. 1264 * 1265 * @param item[in] 1266 * Item specification. 1267 * @param default_mask[in] 1268 * Default bit-masks to use when item->mask is not provided. 1269 * @param data[in, out] 1270 * User structure. 1271 */ 1272 static int 1273 mlx5_flow_create_eth(const struct rte_flow_item *item, 1274 const void *default_mask, 1275 void *data) 1276 { 1277 const struct rte_flow_item_eth *spec = item->spec; 1278 const struct rte_flow_item_eth *mask = item->mask; 1279 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1280 const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); 1281 struct ibv_flow_spec_eth eth = { 1282 .type = parser->inner | IBV_FLOW_SPEC_ETH, 1283 .size = eth_size, 1284 }; 1285 1286 parser->layer = HASH_RXQ_ETH; 1287 if (spec) { 1288 unsigned int i; 1289 1290 if (!mask) 1291 mask = default_mask; 1292 memcpy(ð.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN); 1293 memcpy(ð.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN); 1294 eth.val.ether_type = spec->type; 1295 memcpy(ð.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN); 1296 memcpy(ð.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN); 1297 eth.mask.ether_type = mask->type; 1298 /* Remove unwanted bits from values. */ 1299 for (i = 0; i < ETHER_ADDR_LEN; ++i) { 1300 eth.val.dst_mac[i] &= eth.mask.dst_mac[i]; 1301 eth.val.src_mac[i] &= eth.mask.src_mac[i]; 1302 } 1303 eth.val.ether_type &= eth.mask.ether_type; 1304 } 1305 mlx5_flow_create_copy(parser, ð, eth_size); 1306 return 0; 1307 } 1308 1309 /** 1310 * Convert VLAN item to Verbs specification. 1311 * 1312 * @param item[in] 1313 * Item specification. 1314 * @param default_mask[in] 1315 * Default bit-masks to use when item->mask is not provided. 1316 * @param data[in, out] 1317 * User structure. 1318 */ 1319 static int 1320 mlx5_flow_create_vlan(const struct rte_flow_item *item, 1321 const void *default_mask, 1322 void *data) 1323 { 1324 const struct rte_flow_item_vlan *spec = item->spec; 1325 const struct rte_flow_item_vlan *mask = item->mask; 1326 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1327 struct ibv_flow_spec_eth *eth; 1328 const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); 1329 1330 if (spec) { 1331 unsigned int i; 1332 if (!mask) 1333 mask = default_mask; 1334 1335 if (parser->drop) { 1336 eth = (void *)((uintptr_t)parser->drop_q.ibv_attr + 1337 parser->drop_q.offset - eth_size); 1338 eth->val.vlan_tag = spec->tci; 1339 eth->mask.vlan_tag = mask->tci; 1340 eth->val.vlan_tag &= eth->mask.vlan_tag; 1341 return 0; 1342 } 1343 for (i = 0; i != hash_rxq_init_n; ++i) { 1344 if (!parser->queue[i].ibv_attr) 1345 continue; 1346 1347 eth = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1348 parser->queue[i].offset - eth_size); 1349 eth->val.vlan_tag = spec->tci; 1350 eth->mask.vlan_tag = mask->tci; 1351 eth->val.vlan_tag &= eth->mask.vlan_tag; 1352 } 1353 } 1354 return 0; 1355 } 1356 1357 /** 1358 * Convert IPv4 item to Verbs specification. 1359 * 1360 * @param item[in] 1361 * Item specification. 1362 * @param default_mask[in] 1363 * Default bit-masks to use when item->mask is not provided. 1364 * @param data[in, out] 1365 * User structure. 1366 */ 1367 static int 1368 mlx5_flow_create_ipv4(const struct rte_flow_item *item, 1369 const void *default_mask, 1370 void *data) 1371 { 1372 const struct rte_flow_item_ipv4 *spec = item->spec; 1373 const struct rte_flow_item_ipv4 *mask = item->mask; 1374 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1375 unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext); 1376 struct ibv_flow_spec_ipv4_ext ipv4 = { 1377 .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT, 1378 .size = ipv4_size, 1379 }; 1380 1381 parser->layer = HASH_RXQ_IPV4; 1382 if (spec) { 1383 if (!mask) 1384 mask = default_mask; 1385 ipv4.val = (struct ibv_flow_ipv4_ext_filter){ 1386 .src_ip = spec->hdr.src_addr, 1387 .dst_ip = spec->hdr.dst_addr, 1388 .proto = spec->hdr.next_proto_id, 1389 .tos = spec->hdr.type_of_service, 1390 }; 1391 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){ 1392 .src_ip = mask->hdr.src_addr, 1393 .dst_ip = mask->hdr.dst_addr, 1394 .proto = mask->hdr.next_proto_id, 1395 .tos = mask->hdr.type_of_service, 1396 }; 1397 /* Remove unwanted bits from values. */ 1398 ipv4.val.src_ip &= ipv4.mask.src_ip; 1399 ipv4.val.dst_ip &= ipv4.mask.dst_ip; 1400 ipv4.val.proto &= ipv4.mask.proto; 1401 ipv4.val.tos &= ipv4.mask.tos; 1402 } 1403 mlx5_flow_create_copy(parser, &ipv4, ipv4_size); 1404 return 0; 1405 } 1406 1407 /** 1408 * Convert IPv6 item to Verbs specification. 1409 * 1410 * @param item[in] 1411 * Item specification. 1412 * @param default_mask[in] 1413 * Default bit-masks to use when item->mask is not provided. 1414 * @param data[in, out] 1415 * User structure. 1416 */ 1417 static int 1418 mlx5_flow_create_ipv6(const struct rte_flow_item *item, 1419 const void *default_mask, 1420 void *data) 1421 { 1422 const struct rte_flow_item_ipv6 *spec = item->spec; 1423 const struct rte_flow_item_ipv6 *mask = item->mask; 1424 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1425 unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6); 1426 struct ibv_flow_spec_ipv6 ipv6 = { 1427 .type = parser->inner | IBV_FLOW_SPEC_IPV6, 1428 .size = ipv6_size, 1429 }; 1430 1431 parser->layer = HASH_RXQ_IPV6; 1432 if (spec) { 1433 unsigned int i; 1434 1435 if (!mask) 1436 mask = default_mask; 1437 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr, 1438 RTE_DIM(ipv6.val.src_ip)); 1439 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr, 1440 RTE_DIM(ipv6.val.dst_ip)); 1441 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr, 1442 RTE_DIM(ipv6.mask.src_ip)); 1443 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr, 1444 RTE_DIM(ipv6.mask.dst_ip)); 1445 ipv6.mask.flow_label = mask->hdr.vtc_flow; 1446 ipv6.mask.next_hdr = mask->hdr.proto; 1447 ipv6.mask.hop_limit = mask->hdr.hop_limits; 1448 /* Remove unwanted bits from values. */ 1449 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) { 1450 ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i]; 1451 ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i]; 1452 } 1453 ipv6.val.flow_label &= ipv6.mask.flow_label; 1454 ipv6.val.next_hdr &= ipv6.mask.next_hdr; 1455 ipv6.val.hop_limit &= ipv6.mask.hop_limit; 1456 } 1457 mlx5_flow_create_copy(parser, &ipv6, ipv6_size); 1458 return 0; 1459 } 1460 1461 /** 1462 * Convert UDP item to Verbs specification. 1463 * 1464 * @param item[in] 1465 * Item specification. 1466 * @param default_mask[in] 1467 * Default bit-masks to use when item->mask is not provided. 1468 * @param data[in, out] 1469 * User structure. 1470 */ 1471 static int 1472 mlx5_flow_create_udp(const struct rte_flow_item *item, 1473 const void *default_mask, 1474 void *data) 1475 { 1476 const struct rte_flow_item_udp *spec = item->spec; 1477 const struct rte_flow_item_udp *mask = item->mask; 1478 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1479 unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp); 1480 struct ibv_flow_spec_tcp_udp udp = { 1481 .type = parser->inner | IBV_FLOW_SPEC_UDP, 1482 .size = udp_size, 1483 }; 1484 1485 if (parser->layer == HASH_RXQ_IPV4) 1486 parser->layer = HASH_RXQ_UDPV4; 1487 else 1488 parser->layer = HASH_RXQ_UDPV6; 1489 if (spec) { 1490 if (!mask) 1491 mask = default_mask; 1492 udp.val.dst_port = spec->hdr.dst_port; 1493 udp.val.src_port = spec->hdr.src_port; 1494 udp.mask.dst_port = mask->hdr.dst_port; 1495 udp.mask.src_port = mask->hdr.src_port; 1496 /* Remove unwanted bits from values. */ 1497 udp.val.src_port &= udp.mask.src_port; 1498 udp.val.dst_port &= udp.mask.dst_port; 1499 } 1500 mlx5_flow_create_copy(parser, &udp, udp_size); 1501 return 0; 1502 } 1503 1504 /** 1505 * Convert TCP item to Verbs specification. 1506 * 1507 * @param item[in] 1508 * Item specification. 1509 * @param default_mask[in] 1510 * Default bit-masks to use when item->mask is not provided. 1511 * @param data[in, out] 1512 * User structure. 1513 */ 1514 static int 1515 mlx5_flow_create_tcp(const struct rte_flow_item *item, 1516 const void *default_mask, 1517 void *data) 1518 { 1519 const struct rte_flow_item_tcp *spec = item->spec; 1520 const struct rte_flow_item_tcp *mask = item->mask; 1521 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1522 unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp); 1523 struct ibv_flow_spec_tcp_udp tcp = { 1524 .type = parser->inner | IBV_FLOW_SPEC_TCP, 1525 .size = tcp_size, 1526 }; 1527 1528 if (parser->layer == HASH_RXQ_IPV4) 1529 parser->layer = HASH_RXQ_TCPV4; 1530 else 1531 parser->layer = HASH_RXQ_TCPV6; 1532 if (spec) { 1533 if (!mask) 1534 mask = default_mask; 1535 tcp.val.dst_port = spec->hdr.dst_port; 1536 tcp.val.src_port = spec->hdr.src_port; 1537 tcp.mask.dst_port = mask->hdr.dst_port; 1538 tcp.mask.src_port = mask->hdr.src_port; 1539 /* Remove unwanted bits from values. */ 1540 tcp.val.src_port &= tcp.mask.src_port; 1541 tcp.val.dst_port &= tcp.mask.dst_port; 1542 } 1543 mlx5_flow_create_copy(parser, &tcp, tcp_size); 1544 return 0; 1545 } 1546 1547 /** 1548 * Convert VXLAN item to Verbs specification. 1549 * 1550 * @param item[in] 1551 * Item specification. 1552 * @param default_mask[in] 1553 * Default bit-masks to use when item->mask is not provided. 1554 * @param data[in, out] 1555 * User structure. 1556 */ 1557 static int 1558 mlx5_flow_create_vxlan(const struct rte_flow_item *item, 1559 const void *default_mask, 1560 void *data) 1561 { 1562 const struct rte_flow_item_vxlan *spec = item->spec; 1563 const struct rte_flow_item_vxlan *mask = item->mask; 1564 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1565 unsigned int size = sizeof(struct ibv_flow_spec_tunnel); 1566 struct ibv_flow_spec_tunnel vxlan = { 1567 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, 1568 .size = size, 1569 }; 1570 union vni { 1571 uint32_t vlan_id; 1572 uint8_t vni[4]; 1573 } id; 1574 1575 id.vni[0] = 0; 1576 parser->inner = IBV_FLOW_SPEC_INNER; 1577 if (spec) { 1578 if (!mask) 1579 mask = default_mask; 1580 memcpy(&id.vni[1], spec->vni, 3); 1581 vxlan.val.tunnel_id = id.vlan_id; 1582 memcpy(&id.vni[1], mask->vni, 3); 1583 vxlan.mask.tunnel_id = id.vlan_id; 1584 /* Remove unwanted bits from values. */ 1585 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; 1586 } 1587 mlx5_flow_create_copy(parser, &vxlan, size); 1588 return 0; 1589 } 1590 1591 /** 1592 * Convert mark/flag action to Verbs specification. 1593 * 1594 * @param parser 1595 * Internal parser structure. 1596 * @param mark_id 1597 * Mark identifier. 1598 */ 1599 static int 1600 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id) 1601 { 1602 unsigned int size = sizeof(struct ibv_flow_spec_action_tag); 1603 struct ibv_flow_spec_action_tag tag = { 1604 .type = IBV_FLOW_SPEC_ACTION_TAG, 1605 .size = size, 1606 .tag_id = mlx5_flow_mark_set(mark_id), 1607 }; 1608 1609 assert(parser->mark); 1610 mlx5_flow_create_copy(parser, &tag, size); 1611 return 0; 1612 } 1613 1614 /** 1615 * Convert count action to Verbs specification. 1616 * 1617 * @param priv 1618 * Pointer to private structure. 1619 * @param parser 1620 * Pointer to MLX5 flow parser structure. 1621 * 1622 * @return 1623 * 0 on success, errno value on failure. 1624 */ 1625 static int 1626 mlx5_flow_create_count(struct priv *priv __rte_unused, 1627 struct mlx5_flow_parse *parser __rte_unused) 1628 { 1629 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 1630 unsigned int size = sizeof(struct ibv_flow_spec_counter_action); 1631 struct ibv_counter_set_init_attr init_attr = {0}; 1632 struct ibv_flow_spec_counter_action counter = { 1633 .type = IBV_FLOW_SPEC_ACTION_COUNT, 1634 .size = size, 1635 .counter_set_handle = 0, 1636 }; 1637 1638 init_attr.counter_set_id = 0; 1639 parser->cs = ibv_create_counter_set(priv->ctx, &init_attr); 1640 if (!parser->cs) 1641 return EINVAL; 1642 counter.counter_set_handle = parser->cs->handle; 1643 mlx5_flow_create_copy(parser, &counter, size); 1644 #endif 1645 return 0; 1646 } 1647 1648 /** 1649 * Complete flow rule creation with a drop queue. 1650 * 1651 * @param priv 1652 * Pointer to private structure. 1653 * @param parser 1654 * Internal parser structure. 1655 * @param flow 1656 * Pointer to the rte_flow. 1657 * @param[out] error 1658 * Perform verbose error reporting if not NULL. 1659 * 1660 * @return 1661 * 0 on success, errno value on failure. 1662 */ 1663 static int 1664 priv_flow_create_action_queue_drop(struct priv *priv, 1665 struct mlx5_flow_parse *parser, 1666 struct rte_flow *flow, 1667 struct rte_flow_error *error) 1668 { 1669 struct ibv_flow_spec_action_drop *drop; 1670 unsigned int size = sizeof(struct ibv_flow_spec_action_drop); 1671 int err = 0; 1672 1673 assert(priv->pd); 1674 assert(priv->ctx); 1675 flow->drop = 1; 1676 drop = (void *)((uintptr_t)parser->drop_q.ibv_attr + 1677 parser->drop_q.offset); 1678 *drop = (struct ibv_flow_spec_action_drop){ 1679 .type = IBV_FLOW_SPEC_ACTION_DROP, 1680 .size = size, 1681 }; 1682 ++parser->drop_q.ibv_attr->num_of_specs; 1683 parser->drop_q.offset += size; 1684 flow->drxq.ibv_attr = parser->drop_q.ibv_attr; 1685 if (!priv->dev->data->dev_started) 1686 return 0; 1687 parser->drop_q.ibv_attr = NULL; 1688 flow->drxq.ibv_flow = ibv_create_flow(priv->flow_drop_queue->qp, 1689 flow->drxq.ibv_attr); 1690 if (parser->count) 1691 flow->cs = parser->cs; 1692 if (!flow->drxq.ibv_flow) { 1693 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, 1694 NULL, "flow rule creation failure"); 1695 err = ENOMEM; 1696 goto error; 1697 } 1698 return 0; 1699 error: 1700 assert(flow); 1701 if (flow->drxq.ibv_flow) { 1702 claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow)); 1703 flow->drxq.ibv_flow = NULL; 1704 } 1705 if (flow->drxq.ibv_attr) { 1706 rte_free(flow->drxq.ibv_attr); 1707 flow->drxq.ibv_attr = NULL; 1708 } 1709 if (flow->cs) { 1710 claim_zero(ibv_destroy_counter_set(flow->cs)); 1711 flow->cs = NULL; 1712 parser->cs = NULL; 1713 } 1714 return err; 1715 } 1716 1717 /** 1718 * Create hash Rx queues when RSS is enabled. 1719 * 1720 * @param priv 1721 * Pointer to private structure. 1722 * @param parser 1723 * Internal parser structure. 1724 * @param flow 1725 * Pointer to the rte_flow. 1726 * @param[out] error 1727 * Perform verbose error reporting if not NULL. 1728 * 1729 * @return 1730 * 0 on success, a errno value otherwise and rte_errno is set. 1731 */ 1732 static int 1733 priv_flow_create_action_queue_rss(struct priv *priv, 1734 struct mlx5_flow_parse *parser, 1735 struct rte_flow *flow, 1736 struct rte_flow_error *error) 1737 { 1738 unsigned int i; 1739 1740 for (i = 0; i != hash_rxq_init_n; ++i) { 1741 uint64_t hash_fields; 1742 1743 if (!parser->queue[i].ibv_attr) 1744 continue; 1745 flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr; 1746 parser->queue[i].ibv_attr = NULL; 1747 hash_fields = hash_rxq_init[i].hash_fields; 1748 if (!priv->dev->data->dev_started) 1749 continue; 1750 flow->frxq[i].hrxq = 1751 mlx5_priv_hrxq_get(priv, 1752 parser->rss_conf.rss_key, 1753 parser->rss_conf.rss_key_len, 1754 hash_fields, 1755 parser->queues, 1756 hash_fields ? parser->queues_n : 1); 1757 if (flow->frxq[i].hrxq) 1758 continue; 1759 flow->frxq[i].hrxq = 1760 mlx5_priv_hrxq_new(priv, 1761 parser->rss_conf.rss_key, 1762 parser->rss_conf.rss_key_len, 1763 hash_fields, 1764 parser->queues, 1765 hash_fields ? parser->queues_n : 1); 1766 if (!flow->frxq[i].hrxq) { 1767 rte_flow_error_set(error, ENOMEM, 1768 RTE_FLOW_ERROR_TYPE_HANDLE, 1769 NULL, "cannot create hash rxq"); 1770 return ENOMEM; 1771 } 1772 } 1773 return 0; 1774 } 1775 1776 /** 1777 * Complete flow rule creation. 1778 * 1779 * @param priv 1780 * Pointer to private structure. 1781 * @param parser 1782 * Internal parser structure. 1783 * @param flow 1784 * Pointer to the rte_flow. 1785 * @param[out] error 1786 * Perform verbose error reporting if not NULL. 1787 * 1788 * @return 1789 * 0 on success, a errno value otherwise and rte_errno is set. 1790 */ 1791 static int 1792 priv_flow_create_action_queue(struct priv *priv, 1793 struct mlx5_flow_parse *parser, 1794 struct rte_flow *flow, 1795 struct rte_flow_error *error) 1796 { 1797 int err = 0; 1798 unsigned int i; 1799 1800 assert(priv->pd); 1801 assert(priv->ctx); 1802 assert(!parser->drop); 1803 err = priv_flow_create_action_queue_rss(priv, parser, flow, error); 1804 if (err) 1805 goto error; 1806 if (parser->count) 1807 flow->cs = parser->cs; 1808 if (!priv->dev->data->dev_started) 1809 return 0; 1810 for (i = 0; i != hash_rxq_init_n; ++i) { 1811 if (!flow->frxq[i].hrxq) 1812 continue; 1813 flow->frxq[i].ibv_flow = 1814 ibv_create_flow(flow->frxq[i].hrxq->qp, 1815 flow->frxq[i].ibv_attr); 1816 if (!flow->frxq[i].ibv_flow) { 1817 rte_flow_error_set(error, ENOMEM, 1818 RTE_FLOW_ERROR_TYPE_HANDLE, 1819 NULL, "flow rule creation failure"); 1820 err = ENOMEM; 1821 goto error; 1822 } 1823 DEBUG("%p type %d QP %p ibv_flow %p", 1824 (void *)flow, i, 1825 (void *)flow->frxq[i].hrxq, 1826 (void *)flow->frxq[i].ibv_flow); 1827 } 1828 for (i = 0; i != parser->queues_n; ++i) { 1829 struct mlx5_rxq_data *q = 1830 (*priv->rxqs)[parser->queues[i]]; 1831 1832 q->mark |= parser->mark; 1833 } 1834 return 0; 1835 error: 1836 assert(flow); 1837 for (i = 0; i != hash_rxq_init_n; ++i) { 1838 if (flow->frxq[i].ibv_flow) { 1839 struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow; 1840 1841 claim_zero(ibv_destroy_flow(ibv_flow)); 1842 } 1843 if (flow->frxq[i].hrxq) 1844 mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq); 1845 if (flow->frxq[i].ibv_attr) 1846 rte_free(flow->frxq[i].ibv_attr); 1847 } 1848 if (flow->cs) { 1849 claim_zero(ibv_destroy_counter_set(flow->cs)); 1850 flow->cs = NULL; 1851 parser->cs = NULL; 1852 } 1853 return err; 1854 } 1855 1856 /** 1857 * Convert a flow. 1858 * 1859 * @param priv 1860 * Pointer to private structure. 1861 * @param list 1862 * Pointer to a TAILQ flow list. 1863 * @param[in] attr 1864 * Flow rule attributes. 1865 * @param[in] pattern 1866 * Pattern specification (list terminated by the END pattern item). 1867 * @param[in] actions 1868 * Associated actions (list terminated by the END action). 1869 * @param[out] error 1870 * Perform verbose error reporting if not NULL. 1871 * 1872 * @return 1873 * A flow on success, NULL otherwise. 1874 */ 1875 static struct rte_flow * 1876 priv_flow_create(struct priv *priv, 1877 struct mlx5_flows *list, 1878 const struct rte_flow_attr *attr, 1879 const struct rte_flow_item items[], 1880 const struct rte_flow_action actions[], 1881 struct rte_flow_error *error) 1882 { 1883 struct mlx5_flow_parse parser = { .create = 1, }; 1884 struct rte_flow *flow = NULL; 1885 unsigned int i; 1886 int err; 1887 1888 err = priv_flow_convert(priv, attr, items, actions, error, &parser); 1889 if (err) 1890 goto exit; 1891 flow = rte_calloc(__func__, 1, 1892 sizeof(*flow) + parser.queues_n * sizeof(uint16_t), 1893 0); 1894 if (!flow) { 1895 rte_flow_error_set(error, ENOMEM, 1896 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1897 NULL, 1898 "cannot allocate flow memory"); 1899 return NULL; 1900 } 1901 /* Copy queues configuration. */ 1902 flow->queues = (uint16_t (*)[])(flow + 1); 1903 memcpy(flow->queues, parser.queues, parser.queues_n * sizeof(uint16_t)); 1904 flow->queues_n = parser.queues_n; 1905 /* Copy RSS configuration. */ 1906 flow->rss_conf = parser.rss_conf; 1907 flow->rss_conf.rss_key = flow->rss_key; 1908 memcpy(flow->rss_key, parser.rss_key, parser.rss_conf.rss_key_len); 1909 /* finalise the flow. */ 1910 if (parser.drop) 1911 err = priv_flow_create_action_queue_drop(priv, &parser, flow, 1912 error); 1913 else 1914 err = priv_flow_create_action_queue(priv, &parser, flow, error); 1915 if (err) 1916 goto exit; 1917 TAILQ_INSERT_TAIL(list, flow, next); 1918 DEBUG("Flow created %p", (void *)flow); 1919 return flow; 1920 exit: 1921 if (parser.drop) { 1922 rte_free(parser.drop_q.ibv_attr); 1923 } else { 1924 for (i = 0; i != hash_rxq_init_n; ++i) { 1925 if (parser.queue[i].ibv_attr) 1926 rte_free(parser.queue[i].ibv_attr); 1927 } 1928 } 1929 rte_free(flow); 1930 return NULL; 1931 } 1932 1933 /** 1934 * Validate a flow supported by the NIC. 1935 * 1936 * @see rte_flow_validate() 1937 * @see rte_flow_ops 1938 */ 1939 int 1940 mlx5_flow_validate(struct rte_eth_dev *dev, 1941 const struct rte_flow_attr *attr, 1942 const struct rte_flow_item items[], 1943 const struct rte_flow_action actions[], 1944 struct rte_flow_error *error) 1945 { 1946 struct priv *priv = dev->data->dev_private; 1947 int ret; 1948 struct mlx5_flow_parse parser = { .create = 0, }; 1949 1950 priv_lock(priv); 1951 ret = priv_flow_convert(priv, attr, items, actions, error, &parser); 1952 priv_unlock(priv); 1953 return ret; 1954 } 1955 1956 /** 1957 * Create a flow. 1958 * 1959 * @see rte_flow_create() 1960 * @see rte_flow_ops 1961 */ 1962 struct rte_flow * 1963 mlx5_flow_create(struct rte_eth_dev *dev, 1964 const struct rte_flow_attr *attr, 1965 const struct rte_flow_item items[], 1966 const struct rte_flow_action actions[], 1967 struct rte_flow_error *error) 1968 { 1969 struct priv *priv = dev->data->dev_private; 1970 struct rte_flow *flow; 1971 1972 priv_lock(priv); 1973 flow = priv_flow_create(priv, &priv->flows, attr, items, actions, 1974 error); 1975 priv_unlock(priv); 1976 return flow; 1977 } 1978 1979 /** 1980 * Destroy a flow. 1981 * 1982 * @param priv 1983 * Pointer to private structure. 1984 * @param list 1985 * Pointer to a TAILQ flow list. 1986 * @param[in] flow 1987 * Flow to destroy. 1988 */ 1989 static void 1990 priv_flow_destroy(struct priv *priv, 1991 struct mlx5_flows *list, 1992 struct rte_flow *flow) 1993 { 1994 unsigned int i; 1995 1996 if (flow->cs) { 1997 claim_zero(ibv_destroy_counter_set(flow->cs)); 1998 flow->cs = NULL; 1999 } 2000 if (flow->drop || !flow->mark) 2001 goto free; 2002 for (i = 0; i != flow->queues_n; ++i) { 2003 struct rte_flow *tmp; 2004 int mark = 0; 2005 2006 /* 2007 * To remove the mark from the queue, the queue must not be 2008 * present in any other marked flow (RSS or not). 2009 */ 2010 TAILQ_FOREACH(tmp, list, next) { 2011 unsigned int j; 2012 uint16_t *tqs = NULL; 2013 uint16_t tq_n = 0; 2014 2015 if (!tmp->mark) 2016 continue; 2017 for (j = 0; j != hash_rxq_init_n; ++j) { 2018 if (!tmp->frxq[j].hrxq) 2019 continue; 2020 tqs = tmp->frxq[j].hrxq->ind_table->queues; 2021 tq_n = tmp->frxq[j].hrxq->ind_table->queues_n; 2022 } 2023 if (!tq_n) 2024 continue; 2025 for (j = 0; (j != tq_n) && !mark; j++) 2026 if (tqs[j] == (*flow->queues)[i]) 2027 mark = 1; 2028 } 2029 (*priv->rxqs)[(*flow->queues)[i]]->mark = mark; 2030 } 2031 free: 2032 if (flow->drop) { 2033 if (flow->drxq.ibv_flow) 2034 claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow)); 2035 rte_free(flow->drxq.ibv_attr); 2036 } else { 2037 for (i = 0; i != hash_rxq_init_n; ++i) { 2038 struct mlx5_flow *frxq = &flow->frxq[i]; 2039 2040 if (frxq->ibv_flow) 2041 claim_zero(ibv_destroy_flow(frxq->ibv_flow)); 2042 if (frxq->hrxq) 2043 mlx5_priv_hrxq_release(priv, frxq->hrxq); 2044 if (frxq->ibv_attr) 2045 rte_free(frxq->ibv_attr); 2046 } 2047 } 2048 TAILQ_REMOVE(list, flow, next); 2049 DEBUG("Flow destroyed %p", (void *)flow); 2050 rte_free(flow); 2051 } 2052 2053 /** 2054 * Destroy all flows. 2055 * 2056 * @param priv 2057 * Pointer to private structure. 2058 * @param list 2059 * Pointer to a TAILQ flow list. 2060 */ 2061 void 2062 priv_flow_flush(struct priv *priv, struct mlx5_flows *list) 2063 { 2064 while (!TAILQ_EMPTY(list)) { 2065 struct rte_flow *flow; 2066 2067 flow = TAILQ_FIRST(list); 2068 priv_flow_destroy(priv, list, flow); 2069 } 2070 } 2071 2072 /** 2073 * Create drop queue. 2074 * 2075 * @param priv 2076 * Pointer to private structure. 2077 * 2078 * @return 2079 * 0 on success. 2080 */ 2081 int 2082 priv_flow_create_drop_queue(struct priv *priv) 2083 { 2084 struct mlx5_hrxq_drop *fdq = NULL; 2085 2086 assert(priv->pd); 2087 assert(priv->ctx); 2088 fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0); 2089 if (!fdq) { 2090 WARN("cannot allocate memory for drop queue"); 2091 goto error; 2092 } 2093 fdq->cq = ibv_create_cq(priv->ctx, 1, NULL, NULL, 0); 2094 if (!fdq->cq) { 2095 WARN("cannot allocate CQ for drop queue"); 2096 goto error; 2097 } 2098 fdq->wq = ibv_create_wq(priv->ctx, 2099 &(struct ibv_wq_init_attr){ 2100 .wq_type = IBV_WQT_RQ, 2101 .max_wr = 1, 2102 .max_sge = 1, 2103 .pd = priv->pd, 2104 .cq = fdq->cq, 2105 }); 2106 if (!fdq->wq) { 2107 WARN("cannot allocate WQ for drop queue"); 2108 goto error; 2109 } 2110 fdq->ind_table = ibv_create_rwq_ind_table(priv->ctx, 2111 &(struct ibv_rwq_ind_table_init_attr){ 2112 .log_ind_tbl_size = 0, 2113 .ind_tbl = &fdq->wq, 2114 .comp_mask = 0, 2115 }); 2116 if (!fdq->ind_table) { 2117 WARN("cannot allocate indirection table for drop queue"); 2118 goto error; 2119 } 2120 fdq->qp = ibv_create_qp_ex(priv->ctx, 2121 &(struct ibv_qp_init_attr_ex){ 2122 .qp_type = IBV_QPT_RAW_PACKET, 2123 .comp_mask = 2124 IBV_QP_INIT_ATTR_PD | 2125 IBV_QP_INIT_ATTR_IND_TABLE | 2126 IBV_QP_INIT_ATTR_RX_HASH, 2127 .rx_hash_conf = (struct ibv_rx_hash_conf){ 2128 .rx_hash_function = 2129 IBV_RX_HASH_FUNC_TOEPLITZ, 2130 .rx_hash_key_len = rss_hash_default_key_len, 2131 .rx_hash_key = rss_hash_default_key, 2132 .rx_hash_fields_mask = 0, 2133 }, 2134 .rwq_ind_tbl = fdq->ind_table, 2135 .pd = priv->pd 2136 }); 2137 if (!fdq->qp) { 2138 WARN("cannot allocate QP for drop queue"); 2139 goto error; 2140 } 2141 priv->flow_drop_queue = fdq; 2142 return 0; 2143 error: 2144 if (fdq->qp) 2145 claim_zero(ibv_destroy_qp(fdq->qp)); 2146 if (fdq->ind_table) 2147 claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table)); 2148 if (fdq->wq) 2149 claim_zero(ibv_destroy_wq(fdq->wq)); 2150 if (fdq->cq) 2151 claim_zero(ibv_destroy_cq(fdq->cq)); 2152 if (fdq) 2153 rte_free(fdq); 2154 priv->flow_drop_queue = NULL; 2155 return -1; 2156 } 2157 2158 /** 2159 * Delete drop queue. 2160 * 2161 * @param priv 2162 * Pointer to private structure. 2163 */ 2164 void 2165 priv_flow_delete_drop_queue(struct priv *priv) 2166 { 2167 struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue; 2168 2169 if (!fdq) 2170 return; 2171 if (fdq->qp) 2172 claim_zero(ibv_destroy_qp(fdq->qp)); 2173 if (fdq->ind_table) 2174 claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table)); 2175 if (fdq->wq) 2176 claim_zero(ibv_destroy_wq(fdq->wq)); 2177 if (fdq->cq) 2178 claim_zero(ibv_destroy_cq(fdq->cq)); 2179 rte_free(fdq); 2180 priv->flow_drop_queue = NULL; 2181 } 2182 2183 /** 2184 * Remove all flows. 2185 * 2186 * @param priv 2187 * Pointer to private structure. 2188 * @param list 2189 * Pointer to a TAILQ flow list. 2190 */ 2191 void 2192 priv_flow_stop(struct priv *priv, struct mlx5_flows *list) 2193 { 2194 struct rte_flow *flow; 2195 2196 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) { 2197 unsigned int i; 2198 2199 if (flow->drop) { 2200 if (!flow->drxq.ibv_flow) 2201 continue; 2202 claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow)); 2203 flow->drxq.ibv_flow = NULL; 2204 /* Next flow. */ 2205 continue; 2206 } 2207 if (flow->mark) { 2208 struct mlx5_ind_table_ibv *ind_tbl = NULL; 2209 2210 for (i = 0; i != hash_rxq_init_n; ++i) { 2211 if (!flow->frxq[i].hrxq) 2212 continue; 2213 ind_tbl = flow->frxq[i].hrxq->ind_table; 2214 } 2215 assert(ind_tbl); 2216 for (i = 0; i != ind_tbl->queues_n; ++i) 2217 (*priv->rxqs)[ind_tbl->queues[i]]->mark = 0; 2218 } 2219 for (i = 0; i != hash_rxq_init_n; ++i) { 2220 if (!flow->frxq[i].ibv_flow) 2221 continue; 2222 claim_zero(ibv_destroy_flow(flow->frxq[i].ibv_flow)); 2223 flow->frxq[i].ibv_flow = NULL; 2224 mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq); 2225 flow->frxq[i].hrxq = NULL; 2226 } 2227 DEBUG("Flow %p removed", (void *)flow); 2228 } 2229 } 2230 2231 /** 2232 * Add all flows. 2233 * 2234 * @param priv 2235 * Pointer to private structure. 2236 * @param list 2237 * Pointer to a TAILQ flow list. 2238 * 2239 * @return 2240 * 0 on success, a errno value otherwise and rte_errno is set. 2241 */ 2242 int 2243 priv_flow_start(struct priv *priv, struct mlx5_flows *list) 2244 { 2245 struct rte_flow *flow; 2246 2247 TAILQ_FOREACH(flow, list, next) { 2248 unsigned int i; 2249 2250 if (flow->drop) { 2251 flow->drxq.ibv_flow = 2252 ibv_create_flow(priv->flow_drop_queue->qp, 2253 flow->drxq.ibv_attr); 2254 if (!flow->drxq.ibv_flow) { 2255 DEBUG("Flow %p cannot be applied", 2256 (void *)flow); 2257 rte_errno = EINVAL; 2258 return rte_errno; 2259 } 2260 DEBUG("Flow %p applied", (void *)flow); 2261 /* Next flow. */ 2262 continue; 2263 } 2264 for (i = 0; i != hash_rxq_init_n; ++i) { 2265 if (!flow->frxq[i].ibv_attr) 2266 continue; 2267 flow->frxq[i].hrxq = 2268 mlx5_priv_hrxq_get(priv, flow->rss_conf.rss_key, 2269 flow->rss_conf.rss_key_len, 2270 hash_rxq_init[i].hash_fields, 2271 (*flow->queues), 2272 flow->queues_n); 2273 if (flow->frxq[i].hrxq) 2274 goto flow_create; 2275 flow->frxq[i].hrxq = 2276 mlx5_priv_hrxq_new(priv, flow->rss_conf.rss_key, 2277 flow->rss_conf.rss_key_len, 2278 hash_rxq_init[i].hash_fields, 2279 (*flow->queues), 2280 flow->queues_n); 2281 if (!flow->frxq[i].hrxq) { 2282 DEBUG("Flow %p cannot be applied", 2283 (void *)flow); 2284 rte_errno = EINVAL; 2285 return rte_errno; 2286 } 2287 flow_create: 2288 flow->frxq[i].ibv_flow = 2289 ibv_create_flow(flow->frxq[i].hrxq->qp, 2290 flow->frxq[i].ibv_attr); 2291 if (!flow->frxq[i].ibv_flow) { 2292 DEBUG("Flow %p cannot be applied", 2293 (void *)flow); 2294 rte_errno = EINVAL; 2295 return rte_errno; 2296 } 2297 DEBUG("Flow %p applied", (void *)flow); 2298 } 2299 if (!flow->mark) 2300 continue; 2301 for (i = 0; i != flow->queues_n; ++i) 2302 (*priv->rxqs)[(*flow->queues)[i]]->mark = 1; 2303 } 2304 return 0; 2305 } 2306 2307 /** 2308 * Verify the flow list is empty 2309 * 2310 * @param priv 2311 * Pointer to private structure. 2312 * 2313 * @return the number of flows not released. 2314 */ 2315 int 2316 priv_flow_verify(struct priv *priv) 2317 { 2318 struct rte_flow *flow; 2319 int ret = 0; 2320 2321 TAILQ_FOREACH(flow, &priv->flows, next) { 2322 DEBUG("%p: flow %p still referenced", (void *)priv, 2323 (void *)flow); 2324 ++ret; 2325 } 2326 return ret; 2327 } 2328 2329 /** 2330 * Enable a control flow configured from the control plane. 2331 * 2332 * @param dev 2333 * Pointer to Ethernet device. 2334 * @param eth_spec 2335 * An Ethernet flow spec to apply. 2336 * @param eth_mask 2337 * An Ethernet flow mask to apply. 2338 * @param vlan_spec 2339 * A VLAN flow spec to apply. 2340 * @param vlan_mask 2341 * A VLAN flow mask to apply. 2342 * 2343 * @return 2344 * 0 on success. 2345 */ 2346 int 2347 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev, 2348 struct rte_flow_item_eth *eth_spec, 2349 struct rte_flow_item_eth *eth_mask, 2350 struct rte_flow_item_vlan *vlan_spec, 2351 struct rte_flow_item_vlan *vlan_mask) 2352 { 2353 struct priv *priv = dev->data->dev_private; 2354 const struct rte_flow_attr attr = { 2355 .ingress = 1, 2356 .priority = MLX5_CTRL_FLOW_PRIORITY, 2357 }; 2358 struct rte_flow_item items[] = { 2359 { 2360 .type = RTE_FLOW_ITEM_TYPE_ETH, 2361 .spec = eth_spec, 2362 .last = NULL, 2363 .mask = eth_mask, 2364 }, 2365 { 2366 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN : 2367 RTE_FLOW_ITEM_TYPE_END, 2368 .spec = vlan_spec, 2369 .last = NULL, 2370 .mask = vlan_mask, 2371 }, 2372 { 2373 .type = RTE_FLOW_ITEM_TYPE_END, 2374 }, 2375 }; 2376 struct rte_flow_action actions[] = { 2377 { 2378 .type = RTE_FLOW_ACTION_TYPE_RSS, 2379 }, 2380 { 2381 .type = RTE_FLOW_ACTION_TYPE_END, 2382 }, 2383 }; 2384 struct rte_flow *flow; 2385 struct rte_flow_error error; 2386 unsigned int i; 2387 union { 2388 struct rte_flow_action_rss rss; 2389 struct { 2390 const struct rte_eth_rss_conf *rss_conf; 2391 uint16_t num; 2392 uint16_t queue[RTE_MAX_QUEUES_PER_PORT]; 2393 } local; 2394 } action_rss; 2395 2396 if (!priv->reta_idx_n) 2397 return EINVAL; 2398 for (i = 0; i != priv->reta_idx_n; ++i) 2399 action_rss.local.queue[i] = (*priv->reta_idx)[i]; 2400 action_rss.local.rss_conf = &priv->rss_conf; 2401 action_rss.local.num = priv->reta_idx_n; 2402 actions[0].conf = (const void *)&action_rss.rss; 2403 flow = priv_flow_create(priv, &priv->ctrl_flows, &attr, items, actions, 2404 &error); 2405 if (!flow) 2406 return rte_errno; 2407 return 0; 2408 } 2409 2410 /** 2411 * Enable a flow control configured from the control plane. 2412 * 2413 * @param dev 2414 * Pointer to Ethernet device. 2415 * @param eth_spec 2416 * An Ethernet flow spec to apply. 2417 * @param eth_mask 2418 * An Ethernet flow mask to apply. 2419 * 2420 * @return 2421 * 0 on success. 2422 */ 2423 int 2424 mlx5_ctrl_flow(struct rte_eth_dev *dev, 2425 struct rte_flow_item_eth *eth_spec, 2426 struct rte_flow_item_eth *eth_mask) 2427 { 2428 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL); 2429 } 2430 2431 /** 2432 * Destroy a flow. 2433 * 2434 * @see rte_flow_destroy() 2435 * @see rte_flow_ops 2436 */ 2437 int 2438 mlx5_flow_destroy(struct rte_eth_dev *dev, 2439 struct rte_flow *flow, 2440 struct rte_flow_error *error) 2441 { 2442 struct priv *priv = dev->data->dev_private; 2443 2444 (void)error; 2445 priv_lock(priv); 2446 priv_flow_destroy(priv, &priv->flows, flow); 2447 priv_unlock(priv); 2448 return 0; 2449 } 2450 2451 /** 2452 * Destroy all flows. 2453 * 2454 * @see rte_flow_flush() 2455 * @see rte_flow_ops 2456 */ 2457 int 2458 mlx5_flow_flush(struct rte_eth_dev *dev, 2459 struct rte_flow_error *error) 2460 { 2461 struct priv *priv = dev->data->dev_private; 2462 2463 (void)error; 2464 priv_lock(priv); 2465 priv_flow_flush(priv, &priv->flows); 2466 priv_unlock(priv); 2467 return 0; 2468 } 2469 2470 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 2471 /** 2472 * Query flow counter. 2473 * 2474 * @param cs 2475 * the counter set. 2476 * @param counter_value 2477 * returned data from the counter. 2478 * 2479 * @return 2480 * 0 on success, a errno value otherwise and rte_errno is set. 2481 */ 2482 static int 2483 priv_flow_query_count(struct ibv_counter_set *cs, 2484 struct mlx5_flow_counter_stats *counter_stats, 2485 struct rte_flow_query_count *query_count, 2486 struct rte_flow_error *error) 2487 { 2488 uint64_t counters[2]; 2489 struct ibv_query_counter_set_attr query_cs_attr = { 2490 .cs = cs, 2491 .query_flags = IBV_COUNTER_SET_FORCE_UPDATE, 2492 }; 2493 struct ibv_counter_set_data query_out = { 2494 .out = counters, 2495 .outlen = 2 * sizeof(uint64_t), 2496 }; 2497 int res = ibv_query_counter_set(&query_cs_attr, &query_out); 2498 2499 if (res) { 2500 rte_flow_error_set(error, -res, 2501 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2502 NULL, 2503 "cannot read counter"); 2504 return -res; 2505 } 2506 query_count->hits_set = 1; 2507 query_count->bytes_set = 1; 2508 query_count->hits = counters[0] - counter_stats->hits; 2509 query_count->bytes = counters[1] - counter_stats->bytes; 2510 if (query_count->reset) { 2511 counter_stats->hits = counters[0]; 2512 counter_stats->bytes = counters[1]; 2513 } 2514 return 0; 2515 } 2516 2517 /** 2518 * Query a flows. 2519 * 2520 * @see rte_flow_query() 2521 * @see rte_flow_ops 2522 */ 2523 int 2524 mlx5_flow_query(struct rte_eth_dev *dev, 2525 struct rte_flow *flow, 2526 enum rte_flow_action_type action __rte_unused, 2527 void *data, 2528 struct rte_flow_error *error) 2529 { 2530 struct priv *priv = dev->data->dev_private; 2531 int res = EINVAL; 2532 2533 priv_lock(priv); 2534 if (flow->cs) { 2535 res = priv_flow_query_count(flow->cs, 2536 &flow->counter_stats, 2537 (struct rte_flow_query_count *)data, 2538 error); 2539 } else { 2540 rte_flow_error_set(error, res, 2541 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2542 NULL, 2543 "no counter found for flow"); 2544 } 2545 priv_unlock(priv); 2546 return -res; 2547 } 2548 #endif 2549 2550 /** 2551 * Isolated mode. 2552 * 2553 * @see rte_flow_isolate() 2554 * @see rte_flow_ops 2555 */ 2556 int 2557 mlx5_flow_isolate(struct rte_eth_dev *dev, 2558 int enable, 2559 struct rte_flow_error *error) 2560 { 2561 struct priv *priv = dev->data->dev_private; 2562 2563 priv_lock(priv); 2564 if (dev->data->dev_started) { 2565 rte_flow_error_set(error, EBUSY, 2566 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2567 NULL, 2568 "port must be stopped first"); 2569 priv_unlock(priv); 2570 return -rte_errno; 2571 } 2572 priv->isolated = !!enable; 2573 if (enable) 2574 priv->dev->dev_ops = &mlx5_dev_ops_isolate; 2575 else 2576 priv->dev->dev_ops = &mlx5_dev_ops; 2577 priv_unlock(priv); 2578 return 0; 2579 } 2580 2581 /** 2582 * Convert a flow director filter to a generic flow. 2583 * 2584 * @param priv 2585 * Private structure. 2586 * @param fdir_filter 2587 * Flow director filter to add. 2588 * @param attributes 2589 * Generic flow parameters structure. 2590 * 2591 * @return 2592 * 0 on success, errno value on error. 2593 */ 2594 static int 2595 priv_fdir_filter_convert(struct priv *priv, 2596 const struct rte_eth_fdir_filter *fdir_filter, 2597 struct mlx5_fdir *attributes) 2598 { 2599 const struct rte_eth_fdir_input *input = &fdir_filter->input; 2600 2601 /* Validate queue number. */ 2602 if (fdir_filter->action.rx_queue >= priv->rxqs_n) { 2603 ERROR("invalid queue number %d", fdir_filter->action.rx_queue); 2604 return EINVAL; 2605 } 2606 attributes->attr.ingress = 1; 2607 attributes->items[0] = (struct rte_flow_item) { 2608 .type = RTE_FLOW_ITEM_TYPE_ETH, 2609 .spec = &attributes->l2, 2610 }; 2611 switch (fdir_filter->action.behavior) { 2612 case RTE_ETH_FDIR_ACCEPT: 2613 attributes->actions[0] = (struct rte_flow_action){ 2614 .type = RTE_FLOW_ACTION_TYPE_QUEUE, 2615 .conf = &attributes->queue, 2616 }; 2617 break; 2618 case RTE_ETH_FDIR_REJECT: 2619 attributes->actions[0] = (struct rte_flow_action){ 2620 .type = RTE_FLOW_ACTION_TYPE_DROP, 2621 }; 2622 break; 2623 default: 2624 ERROR("invalid behavior %d", fdir_filter->action.behavior); 2625 return ENOTSUP; 2626 } 2627 attributes->queue.index = fdir_filter->action.rx_queue; 2628 switch (fdir_filter->input.flow_type) { 2629 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: 2630 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 2631 .src_addr = input->flow.udp4_flow.ip.src_ip, 2632 .dst_addr = input->flow.udp4_flow.ip.dst_ip, 2633 .time_to_live = input->flow.udp4_flow.ip.ttl, 2634 .type_of_service = input->flow.udp4_flow.ip.tos, 2635 .next_proto_id = input->flow.udp4_flow.ip.proto, 2636 }; 2637 attributes->l4.udp.hdr = (struct udp_hdr){ 2638 .src_port = input->flow.udp4_flow.src_port, 2639 .dst_port = input->flow.udp4_flow.dst_port, 2640 }; 2641 attributes->items[1] = (struct rte_flow_item){ 2642 .type = RTE_FLOW_ITEM_TYPE_IPV4, 2643 .spec = &attributes->l3, 2644 }; 2645 attributes->items[2] = (struct rte_flow_item){ 2646 .type = RTE_FLOW_ITEM_TYPE_UDP, 2647 .spec = &attributes->l4, 2648 }; 2649 break; 2650 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: 2651 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 2652 .src_addr = input->flow.tcp4_flow.ip.src_ip, 2653 .dst_addr = input->flow.tcp4_flow.ip.dst_ip, 2654 .time_to_live = input->flow.tcp4_flow.ip.ttl, 2655 .type_of_service = input->flow.tcp4_flow.ip.tos, 2656 .next_proto_id = input->flow.tcp4_flow.ip.proto, 2657 }; 2658 attributes->l4.tcp.hdr = (struct tcp_hdr){ 2659 .src_port = input->flow.tcp4_flow.src_port, 2660 .dst_port = input->flow.tcp4_flow.dst_port, 2661 }; 2662 attributes->items[1] = (struct rte_flow_item){ 2663 .type = RTE_FLOW_ITEM_TYPE_IPV4, 2664 .spec = &attributes->l3, 2665 }; 2666 attributes->items[2] = (struct rte_flow_item){ 2667 .type = RTE_FLOW_ITEM_TYPE_TCP, 2668 .spec = &attributes->l4, 2669 }; 2670 break; 2671 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: 2672 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 2673 .src_addr = input->flow.ip4_flow.src_ip, 2674 .dst_addr = input->flow.ip4_flow.dst_ip, 2675 .time_to_live = input->flow.ip4_flow.ttl, 2676 .type_of_service = input->flow.ip4_flow.tos, 2677 .next_proto_id = input->flow.ip4_flow.proto, 2678 }; 2679 attributes->items[1] = (struct rte_flow_item){ 2680 .type = RTE_FLOW_ITEM_TYPE_IPV4, 2681 .spec = &attributes->l3, 2682 }; 2683 break; 2684 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: 2685 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 2686 .hop_limits = input->flow.udp6_flow.ip.hop_limits, 2687 .proto = input->flow.udp6_flow.ip.proto, 2688 }; 2689 memcpy(attributes->l3.ipv6.hdr.src_addr, 2690 input->flow.udp6_flow.ip.src_ip, 2691 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2692 memcpy(attributes->l3.ipv6.hdr.dst_addr, 2693 input->flow.udp6_flow.ip.dst_ip, 2694 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2695 attributes->l4.udp.hdr = (struct udp_hdr){ 2696 .src_port = input->flow.udp6_flow.src_port, 2697 .dst_port = input->flow.udp6_flow.dst_port, 2698 }; 2699 attributes->items[1] = (struct rte_flow_item){ 2700 .type = RTE_FLOW_ITEM_TYPE_IPV6, 2701 .spec = &attributes->l3, 2702 }; 2703 attributes->items[2] = (struct rte_flow_item){ 2704 .type = RTE_FLOW_ITEM_TYPE_UDP, 2705 .spec = &attributes->l4, 2706 }; 2707 break; 2708 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: 2709 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 2710 .hop_limits = input->flow.tcp6_flow.ip.hop_limits, 2711 .proto = input->flow.tcp6_flow.ip.proto, 2712 }; 2713 memcpy(attributes->l3.ipv6.hdr.src_addr, 2714 input->flow.tcp6_flow.ip.src_ip, 2715 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2716 memcpy(attributes->l3.ipv6.hdr.dst_addr, 2717 input->flow.tcp6_flow.ip.dst_ip, 2718 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2719 attributes->l4.tcp.hdr = (struct tcp_hdr){ 2720 .src_port = input->flow.tcp6_flow.src_port, 2721 .dst_port = input->flow.tcp6_flow.dst_port, 2722 }; 2723 attributes->items[1] = (struct rte_flow_item){ 2724 .type = RTE_FLOW_ITEM_TYPE_IPV6, 2725 .spec = &attributes->l3, 2726 }; 2727 attributes->items[2] = (struct rte_flow_item){ 2728 .type = RTE_FLOW_ITEM_TYPE_UDP, 2729 .spec = &attributes->l4, 2730 }; 2731 break; 2732 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: 2733 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 2734 .hop_limits = input->flow.ipv6_flow.hop_limits, 2735 .proto = input->flow.ipv6_flow.proto, 2736 }; 2737 memcpy(attributes->l3.ipv6.hdr.src_addr, 2738 input->flow.ipv6_flow.src_ip, 2739 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2740 memcpy(attributes->l3.ipv6.hdr.dst_addr, 2741 input->flow.ipv6_flow.dst_ip, 2742 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2743 attributes->items[1] = (struct rte_flow_item){ 2744 .type = RTE_FLOW_ITEM_TYPE_IPV6, 2745 .spec = &attributes->l3, 2746 }; 2747 break; 2748 default: 2749 ERROR("invalid flow type%d", 2750 fdir_filter->input.flow_type); 2751 return ENOTSUP; 2752 } 2753 return 0; 2754 } 2755 2756 /** 2757 * Add new flow director filter and store it in list. 2758 * 2759 * @param priv 2760 * Private structure. 2761 * @param fdir_filter 2762 * Flow director filter to add. 2763 * 2764 * @return 2765 * 0 on success, errno value on failure. 2766 */ 2767 static int 2768 priv_fdir_filter_add(struct priv *priv, 2769 const struct rte_eth_fdir_filter *fdir_filter) 2770 { 2771 struct mlx5_fdir attributes = { 2772 .attr.group = 0, 2773 }; 2774 struct mlx5_flow_parse parser = { 2775 .layer = HASH_RXQ_ETH, 2776 }; 2777 struct rte_flow_error error; 2778 struct rte_flow *flow; 2779 int ret; 2780 2781 ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes); 2782 if (ret) 2783 return -ret; 2784 ret = priv_flow_convert(priv, &attributes.attr, attributes.items, 2785 attributes.actions, &error, &parser); 2786 if (ret) 2787 return -ret; 2788 flow = priv_flow_create(priv, 2789 &priv->flows, 2790 &attributes.attr, 2791 attributes.items, 2792 attributes.actions, 2793 &error); 2794 if (flow) { 2795 DEBUG("FDIR created %p", (void *)flow); 2796 return 0; 2797 } 2798 return ENOTSUP; 2799 } 2800 2801 /** 2802 * Delete specific filter. 2803 * 2804 * @param priv 2805 * Private structure. 2806 * @param fdir_filter 2807 * Filter to be deleted. 2808 * 2809 * @return 2810 * 0 on success, errno value on failure. 2811 */ 2812 static int 2813 priv_fdir_filter_delete(struct priv *priv, 2814 const struct rte_eth_fdir_filter *fdir_filter) 2815 { 2816 struct mlx5_fdir attributes; 2817 struct mlx5_flow_parse parser = { 2818 .create = 1, 2819 .layer = HASH_RXQ_ETH, 2820 }; 2821 struct rte_flow_error error; 2822 struct rte_flow *flow; 2823 unsigned int i; 2824 int ret; 2825 2826 ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes); 2827 if (ret) 2828 return -ret; 2829 ret = priv_flow_convert(priv, &attributes.attr, attributes.items, 2830 attributes.actions, &error, &parser); 2831 if (ret) 2832 goto exit; 2833 TAILQ_FOREACH(flow, &priv->flows, next) { 2834 struct ibv_flow_attr *attr; 2835 struct ibv_spec_header *attr_h; 2836 void *spec; 2837 struct ibv_flow_attr *flow_attr; 2838 struct ibv_spec_header *flow_h; 2839 void *flow_spec; 2840 unsigned int specs_n; 2841 2842 if (parser.drop) 2843 attr = parser.drop_q.ibv_attr; 2844 else 2845 attr = parser.queue[HASH_RXQ_ETH].ibv_attr; 2846 if (flow->drop) 2847 flow_attr = flow->drxq.ibv_attr; 2848 else 2849 flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr; 2850 /* Compare first the attributes. */ 2851 if (memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr))) 2852 continue; 2853 if (attr->num_of_specs == 0) 2854 continue; 2855 spec = (void *)((uintptr_t)attr + 2856 sizeof(struct ibv_flow_attr)); 2857 flow_spec = (void *)((uintptr_t)flow_attr + 2858 sizeof(struct ibv_flow_attr)); 2859 specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs); 2860 for (i = 0; i != specs_n; ++i) { 2861 attr_h = spec; 2862 flow_h = flow_spec; 2863 if (memcmp(spec, flow_spec, 2864 RTE_MIN(attr_h->size, flow_h->size))) 2865 continue; 2866 spec = (void *)((uintptr_t)attr + attr_h->size); 2867 flow_spec = (void *)((uintptr_t)flow_attr + 2868 flow_h->size); 2869 } 2870 /* At this point, the flow match. */ 2871 break; 2872 } 2873 if (flow) 2874 priv_flow_destroy(priv, &priv->flows, flow); 2875 exit: 2876 if (parser.drop) { 2877 rte_free(parser.drop_q.ibv_attr); 2878 } else { 2879 for (i = 0; i != hash_rxq_init_n; ++i) { 2880 if (parser.queue[i].ibv_attr) 2881 rte_free(parser.queue[i].ibv_attr); 2882 } 2883 } 2884 return -ret; 2885 } 2886 2887 /** 2888 * Update queue for specific filter. 2889 * 2890 * @param priv 2891 * Private structure. 2892 * @param fdir_filter 2893 * Filter to be updated. 2894 * 2895 * @return 2896 * 0 on success, errno value on failure. 2897 */ 2898 static int 2899 priv_fdir_filter_update(struct priv *priv, 2900 const struct rte_eth_fdir_filter *fdir_filter) 2901 { 2902 int ret; 2903 2904 ret = priv_fdir_filter_delete(priv, fdir_filter); 2905 if (ret) 2906 return ret; 2907 ret = priv_fdir_filter_add(priv, fdir_filter); 2908 return ret; 2909 } 2910 2911 /** 2912 * Flush all filters. 2913 * 2914 * @param priv 2915 * Private structure. 2916 */ 2917 static void 2918 priv_fdir_filter_flush(struct priv *priv) 2919 { 2920 priv_flow_flush(priv, &priv->flows); 2921 } 2922 2923 /** 2924 * Get flow director information. 2925 * 2926 * @param priv 2927 * Private structure. 2928 * @param[out] fdir_info 2929 * Resulting flow director information. 2930 */ 2931 static void 2932 priv_fdir_info_get(struct priv *priv, struct rte_eth_fdir_info *fdir_info) 2933 { 2934 struct rte_eth_fdir_masks *mask = 2935 &priv->dev->data->dev_conf.fdir_conf.mask; 2936 2937 fdir_info->mode = priv->dev->data->dev_conf.fdir_conf.mode; 2938 fdir_info->guarant_spc = 0; 2939 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask)); 2940 fdir_info->max_flexpayload = 0; 2941 fdir_info->flow_types_mask[0] = 0; 2942 fdir_info->flex_payload_unit = 0; 2943 fdir_info->max_flex_payload_segment_num = 0; 2944 fdir_info->flex_payload_limit = 0; 2945 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf)); 2946 } 2947 2948 /** 2949 * Deal with flow director operations. 2950 * 2951 * @param priv 2952 * Pointer to private structure. 2953 * @param filter_op 2954 * Operation to perform. 2955 * @param arg 2956 * Pointer to operation-specific structure. 2957 * 2958 * @return 2959 * 0 on success, errno value on failure. 2960 */ 2961 static int 2962 priv_fdir_ctrl_func(struct priv *priv, enum rte_filter_op filter_op, void *arg) 2963 { 2964 enum rte_fdir_mode fdir_mode = 2965 priv->dev->data->dev_conf.fdir_conf.mode; 2966 int ret = 0; 2967 2968 if (filter_op == RTE_ETH_FILTER_NOP) 2969 return 0; 2970 if (fdir_mode != RTE_FDIR_MODE_PERFECT && 2971 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) { 2972 ERROR("%p: flow director mode %d not supported", 2973 (void *)priv, fdir_mode); 2974 return EINVAL; 2975 } 2976 switch (filter_op) { 2977 case RTE_ETH_FILTER_ADD: 2978 ret = priv_fdir_filter_add(priv, arg); 2979 break; 2980 case RTE_ETH_FILTER_UPDATE: 2981 ret = priv_fdir_filter_update(priv, arg); 2982 break; 2983 case RTE_ETH_FILTER_DELETE: 2984 ret = priv_fdir_filter_delete(priv, arg); 2985 break; 2986 case RTE_ETH_FILTER_FLUSH: 2987 priv_fdir_filter_flush(priv); 2988 break; 2989 case RTE_ETH_FILTER_INFO: 2990 priv_fdir_info_get(priv, arg); 2991 break; 2992 default: 2993 DEBUG("%p: unknown operation %u", (void *)priv, 2994 filter_op); 2995 ret = EINVAL; 2996 break; 2997 } 2998 return ret; 2999 } 3000 3001 /** 3002 * Manage filter operations. 3003 * 3004 * @param dev 3005 * Pointer to Ethernet device structure. 3006 * @param filter_type 3007 * Filter type. 3008 * @param filter_op 3009 * Operation to perform. 3010 * @param arg 3011 * Pointer to operation-specific structure. 3012 * 3013 * @return 3014 * 0 on success, negative errno value on failure. 3015 */ 3016 int 3017 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev, 3018 enum rte_filter_type filter_type, 3019 enum rte_filter_op filter_op, 3020 void *arg) 3021 { 3022 int ret = EINVAL; 3023 struct priv *priv = dev->data->dev_private; 3024 3025 switch (filter_type) { 3026 case RTE_ETH_FILTER_GENERIC: 3027 if (filter_op != RTE_ETH_FILTER_GET) 3028 return -EINVAL; 3029 *(const void **)arg = &mlx5_flow_ops; 3030 return 0; 3031 case RTE_ETH_FILTER_FDIR: 3032 priv_lock(priv); 3033 ret = priv_fdir_ctrl_func(priv, filter_op, arg); 3034 priv_unlock(priv); 3035 break; 3036 default: 3037 ERROR("%p: filter type (%d) not supported", 3038 (void *)dev, filter_type); 3039 break; 3040 } 3041 return -ret; 3042 } 3043