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_defs.h" 54 #include "mlx5_prm.h" 55 56 /* Define minimal priority for control plane flows. */ 57 #define MLX5_CTRL_FLOW_PRIORITY 4 58 59 /* Internet Protocol versions. */ 60 #define MLX5_IPV4 4 61 #define MLX5_IPV6 6 62 63 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 64 struct ibv_counter_set_init_attr { 65 int dummy; 66 }; 67 struct ibv_flow_spec_counter_action { 68 int dummy; 69 }; 70 struct ibv_counter_set { 71 int dummy; 72 }; 73 74 static inline int 75 ibv_destroy_counter_set(struct ibv_counter_set *cs) 76 { 77 (void)cs; 78 return -ENOTSUP; 79 } 80 #endif 81 82 /* Dev ops structure defined in mlx5.c */ 83 extern const struct eth_dev_ops mlx5_dev_ops; 84 extern const struct eth_dev_ops mlx5_dev_ops_isolate; 85 86 static int 87 mlx5_flow_create_eth(const struct rte_flow_item *item, 88 const void *default_mask, 89 void *data); 90 91 static int 92 mlx5_flow_create_vlan(const struct rte_flow_item *item, 93 const void *default_mask, 94 void *data); 95 96 static int 97 mlx5_flow_create_ipv4(const struct rte_flow_item *item, 98 const void *default_mask, 99 void *data); 100 101 static int 102 mlx5_flow_create_ipv6(const struct rte_flow_item *item, 103 const void *default_mask, 104 void *data); 105 106 static int 107 mlx5_flow_create_udp(const struct rte_flow_item *item, 108 const void *default_mask, 109 void *data); 110 111 static int 112 mlx5_flow_create_tcp(const struct rte_flow_item *item, 113 const void *default_mask, 114 void *data); 115 116 static int 117 mlx5_flow_create_vxlan(const struct rte_flow_item *item, 118 const void *default_mask, 119 void *data); 120 121 struct mlx5_flow_parse; 122 123 static void 124 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, 125 unsigned int size); 126 127 static int 128 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id); 129 130 static int 131 mlx5_flow_create_count(struct priv *priv, struct mlx5_flow_parse *parser); 132 133 /* Hash RX queue types. */ 134 enum hash_rxq_type { 135 HASH_RXQ_TCPV4, 136 HASH_RXQ_UDPV4, 137 HASH_RXQ_IPV4, 138 HASH_RXQ_TCPV6, 139 HASH_RXQ_UDPV6, 140 HASH_RXQ_IPV6, 141 HASH_RXQ_ETH, 142 }; 143 144 /* Initialization data for hash RX queue. */ 145 struct hash_rxq_init { 146 uint64_t hash_fields; /* Fields that participate in the hash. */ 147 uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */ 148 unsigned int flow_priority; /* Flow priority to use. */ 149 unsigned int ip_version; /* Internet protocol. */ 150 }; 151 152 /* Initialization data for hash RX queues. */ 153 const struct hash_rxq_init hash_rxq_init[] = { 154 [HASH_RXQ_TCPV4] = { 155 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 156 IBV_RX_HASH_DST_IPV4 | 157 IBV_RX_HASH_SRC_PORT_TCP | 158 IBV_RX_HASH_DST_PORT_TCP), 159 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP, 160 .flow_priority = 0, 161 .ip_version = MLX5_IPV4, 162 }, 163 [HASH_RXQ_UDPV4] = { 164 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 165 IBV_RX_HASH_DST_IPV4 | 166 IBV_RX_HASH_SRC_PORT_UDP | 167 IBV_RX_HASH_DST_PORT_UDP), 168 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP, 169 .flow_priority = 0, 170 .ip_version = MLX5_IPV4, 171 }, 172 [HASH_RXQ_IPV4] = { 173 .hash_fields = (IBV_RX_HASH_SRC_IPV4 | 174 IBV_RX_HASH_DST_IPV4), 175 .dpdk_rss_hf = (ETH_RSS_IPV4 | 176 ETH_RSS_FRAG_IPV4), 177 .flow_priority = 1, 178 .ip_version = MLX5_IPV4, 179 }, 180 [HASH_RXQ_TCPV6] = { 181 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 182 IBV_RX_HASH_DST_IPV6 | 183 IBV_RX_HASH_SRC_PORT_TCP | 184 IBV_RX_HASH_DST_PORT_TCP), 185 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP, 186 .flow_priority = 0, 187 .ip_version = MLX5_IPV6, 188 }, 189 [HASH_RXQ_UDPV6] = { 190 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 191 IBV_RX_HASH_DST_IPV6 | 192 IBV_RX_HASH_SRC_PORT_UDP | 193 IBV_RX_HASH_DST_PORT_UDP), 194 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP, 195 .flow_priority = 0, 196 .ip_version = MLX5_IPV6, 197 }, 198 [HASH_RXQ_IPV6] = { 199 .hash_fields = (IBV_RX_HASH_SRC_IPV6 | 200 IBV_RX_HASH_DST_IPV6), 201 .dpdk_rss_hf = (ETH_RSS_IPV6 | 202 ETH_RSS_FRAG_IPV6), 203 .flow_priority = 1, 204 .ip_version = MLX5_IPV6, 205 }, 206 [HASH_RXQ_ETH] = { 207 .hash_fields = 0, 208 .dpdk_rss_hf = 0, 209 .flow_priority = 2, 210 }, 211 }; 212 213 /* Number of entries in hash_rxq_init[]. */ 214 const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init); 215 216 /** Structure for holding counter stats. */ 217 struct mlx5_flow_counter_stats { 218 uint64_t hits; /**< Number of packets matched by the rule. */ 219 uint64_t bytes; /**< Number of bytes matched by the rule. */ 220 }; 221 222 /** Structure for Drop queue. */ 223 struct mlx5_hrxq_drop { 224 struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */ 225 struct ibv_qp *qp; /**< Verbs queue pair. */ 226 struct ibv_wq *wq; /**< Verbs work queue. */ 227 struct ibv_cq *cq; /**< Verbs completion queue. */ 228 }; 229 230 /* Flows structures. */ 231 struct mlx5_flow { 232 uint64_t hash_fields; /**< Fields that participate in the hash. */ 233 struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ 234 struct ibv_flow *ibv_flow; /**< Verbs flow. */ 235 struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */ 236 }; 237 238 /* Drop flows structures. */ 239 struct mlx5_flow_drop { 240 struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ 241 struct ibv_flow *ibv_flow; /**< Verbs flow. */ 242 }; 243 244 struct rte_flow { 245 TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */ 246 uint32_t mark:1; /**< Set if the flow is marked. */ 247 uint32_t drop:1; /**< Drop queue. */ 248 uint16_t queues_n; /**< Number of entries in queue[]. */ 249 uint16_t (*queues)[]; /**< Queues indexes to use. */ 250 struct rte_eth_rss_conf rss_conf; /**< RSS configuration */ 251 uint8_t rss_key[40]; /**< copy of the RSS key. */ 252 struct ibv_counter_set *cs; /**< Holds the counters for the rule. */ 253 struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */ 254 struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)]; 255 /**< Flow with Rx queue. */ 256 }; 257 258 /** Static initializer for items. */ 259 #define ITEMS(...) \ 260 (const enum rte_flow_item_type []){ \ 261 __VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \ 262 } 263 264 /** Structure to generate a simple graph of layers supported by the NIC. */ 265 struct mlx5_flow_items { 266 /** List of possible actions for these items. */ 267 const enum rte_flow_action_type *const actions; 268 /** Bit-masks corresponding to the possibilities for the item. */ 269 const void *mask; 270 /** 271 * Default bit-masks to use when item->mask is not provided. When 272 * \default_mask is also NULL, the full supported bit-mask (\mask) is 273 * used instead. 274 */ 275 const void *default_mask; 276 /** Bit-masks size in bytes. */ 277 const unsigned int mask_sz; 278 /** 279 * Conversion function from rte_flow to NIC specific flow. 280 * 281 * @param item 282 * rte_flow item to convert. 283 * @param default_mask 284 * Default bit-masks to use when item->mask is not provided. 285 * @param data 286 * Internal structure to store the conversion. 287 * 288 * @return 289 * 0 on success, negative value otherwise. 290 */ 291 int (*convert)(const struct rte_flow_item *item, 292 const void *default_mask, 293 void *data); 294 /** Size in bytes of the destination structure. */ 295 const unsigned int dst_sz; 296 /** List of possible following items. */ 297 const enum rte_flow_item_type *const items; 298 }; 299 300 /** Valid action for this PMD. */ 301 static const enum rte_flow_action_type valid_actions[] = { 302 RTE_FLOW_ACTION_TYPE_DROP, 303 RTE_FLOW_ACTION_TYPE_QUEUE, 304 RTE_FLOW_ACTION_TYPE_MARK, 305 RTE_FLOW_ACTION_TYPE_FLAG, 306 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 307 RTE_FLOW_ACTION_TYPE_COUNT, 308 #endif 309 RTE_FLOW_ACTION_TYPE_END, 310 }; 311 312 /** Graph of supported items and associated actions. */ 313 static const struct mlx5_flow_items mlx5_flow_items[] = { 314 [RTE_FLOW_ITEM_TYPE_END] = { 315 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, 316 RTE_FLOW_ITEM_TYPE_VXLAN), 317 }, 318 [RTE_FLOW_ITEM_TYPE_ETH] = { 319 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN, 320 RTE_FLOW_ITEM_TYPE_IPV4, 321 RTE_FLOW_ITEM_TYPE_IPV6), 322 .actions = valid_actions, 323 .mask = &(const struct rte_flow_item_eth){ 324 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", 325 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff", 326 .type = -1, 327 }, 328 .default_mask = &rte_flow_item_eth_mask, 329 .mask_sz = sizeof(struct rte_flow_item_eth), 330 .convert = mlx5_flow_create_eth, 331 .dst_sz = sizeof(struct ibv_flow_spec_eth), 332 }, 333 [RTE_FLOW_ITEM_TYPE_VLAN] = { 334 .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4, 335 RTE_FLOW_ITEM_TYPE_IPV6), 336 .actions = valid_actions, 337 .mask = &(const struct rte_flow_item_vlan){ 338 .tci = -1, 339 }, 340 .default_mask = &rte_flow_item_vlan_mask, 341 .mask_sz = sizeof(struct rte_flow_item_vlan), 342 .convert = mlx5_flow_create_vlan, 343 .dst_sz = 0, 344 }, 345 [RTE_FLOW_ITEM_TYPE_IPV4] = { 346 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, 347 RTE_FLOW_ITEM_TYPE_TCP), 348 .actions = valid_actions, 349 .mask = &(const struct rte_flow_item_ipv4){ 350 .hdr = { 351 .src_addr = -1, 352 .dst_addr = -1, 353 .type_of_service = -1, 354 .next_proto_id = -1, 355 }, 356 }, 357 .default_mask = &rte_flow_item_ipv4_mask, 358 .mask_sz = sizeof(struct rte_flow_item_ipv4), 359 .convert = mlx5_flow_create_ipv4, 360 .dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext), 361 }, 362 [RTE_FLOW_ITEM_TYPE_IPV6] = { 363 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, 364 RTE_FLOW_ITEM_TYPE_TCP), 365 .actions = valid_actions, 366 .mask = &(const struct rte_flow_item_ipv6){ 367 .hdr = { 368 .src_addr = { 369 0xff, 0xff, 0xff, 0xff, 370 0xff, 0xff, 0xff, 0xff, 371 0xff, 0xff, 0xff, 0xff, 372 0xff, 0xff, 0xff, 0xff, 373 }, 374 .dst_addr = { 375 0xff, 0xff, 0xff, 0xff, 376 0xff, 0xff, 0xff, 0xff, 377 0xff, 0xff, 0xff, 0xff, 378 0xff, 0xff, 0xff, 0xff, 379 }, 380 .vtc_flow = -1, 381 .proto = -1, 382 .hop_limits = -1, 383 }, 384 }, 385 .default_mask = &rte_flow_item_ipv6_mask, 386 .mask_sz = sizeof(struct rte_flow_item_ipv6), 387 .convert = mlx5_flow_create_ipv6, 388 .dst_sz = sizeof(struct ibv_flow_spec_ipv6), 389 }, 390 [RTE_FLOW_ITEM_TYPE_UDP] = { 391 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN), 392 .actions = valid_actions, 393 .mask = &(const struct rte_flow_item_udp){ 394 .hdr = { 395 .src_port = -1, 396 .dst_port = -1, 397 }, 398 }, 399 .default_mask = &rte_flow_item_udp_mask, 400 .mask_sz = sizeof(struct rte_flow_item_udp), 401 .convert = mlx5_flow_create_udp, 402 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), 403 }, 404 [RTE_FLOW_ITEM_TYPE_TCP] = { 405 .actions = valid_actions, 406 .mask = &(const struct rte_flow_item_tcp){ 407 .hdr = { 408 .src_port = -1, 409 .dst_port = -1, 410 }, 411 }, 412 .default_mask = &rte_flow_item_tcp_mask, 413 .mask_sz = sizeof(struct rte_flow_item_tcp), 414 .convert = mlx5_flow_create_tcp, 415 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), 416 }, 417 [RTE_FLOW_ITEM_TYPE_VXLAN] = { 418 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH), 419 .actions = valid_actions, 420 .mask = &(const struct rte_flow_item_vxlan){ 421 .vni = "\xff\xff\xff", 422 }, 423 .default_mask = &rte_flow_item_vxlan_mask, 424 .mask_sz = sizeof(struct rte_flow_item_vxlan), 425 .convert = mlx5_flow_create_vxlan, 426 .dst_sz = sizeof(struct ibv_flow_spec_tunnel), 427 }, 428 }; 429 430 /** Structure to pass to the conversion function. */ 431 struct mlx5_flow_parse { 432 uint32_t inner; /**< Set once VXLAN is encountered. */ 433 uint32_t allmulti:1; /**< Set once allmulti dst MAC is encountered. */ 434 uint32_t create:1; 435 /**< Whether resources should remain after a validate. */ 436 uint32_t drop:1; /**< Target is a drop queue. */ 437 uint32_t mark:1; /**< Mark is present in the flow. */ 438 uint32_t count:1; /**< Count is present in the flow. */ 439 uint32_t mark_id; /**< Mark identifier. */ 440 uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */ 441 uint16_t queues_n; /**< Number of entries in queue[]. */ 442 struct rte_eth_rss_conf rss_conf; /**< RSS configuration */ 443 uint8_t rss_key[40]; /**< copy of the RSS key. */ 444 enum hash_rxq_type layer; /**< Last pattern layer detected. */ 445 struct ibv_counter_set *cs; /**< Holds the counter set for the rule */ 446 struct { 447 struct ibv_flow_attr *ibv_attr; 448 /**< Pointer to Verbs attributes. */ 449 unsigned int offset; 450 /**< Current position or total size of the attribute. */ 451 } queue[RTE_DIM(hash_rxq_init)]; 452 }; 453 454 static const struct rte_flow_ops mlx5_flow_ops = { 455 .validate = mlx5_flow_validate, 456 .create = mlx5_flow_create, 457 .destroy = mlx5_flow_destroy, 458 .flush = mlx5_flow_flush, 459 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 460 .query = mlx5_flow_query, 461 #else 462 .query = NULL, 463 #endif 464 .isolate = mlx5_flow_isolate, 465 }; 466 467 /* Convert FDIR request to Generic flow. */ 468 struct mlx5_fdir { 469 struct rte_flow_attr attr; 470 struct rte_flow_action actions[2]; 471 struct rte_flow_item items[4]; 472 struct rte_flow_item_eth l2; 473 struct rte_flow_item_eth l2_mask; 474 union { 475 struct rte_flow_item_ipv4 ipv4; 476 struct rte_flow_item_ipv6 ipv6; 477 } l3; 478 union { 479 struct rte_flow_item_udp udp; 480 struct rte_flow_item_tcp tcp; 481 } l4; 482 struct rte_flow_action_queue queue; 483 }; 484 485 /* Verbs specification header. */ 486 struct ibv_spec_header { 487 enum ibv_flow_spec_type type; 488 uint16_t size; 489 }; 490 491 /** 492 * Check support for a given item. 493 * 494 * @param item[in] 495 * Item specification. 496 * @param mask[in] 497 * Bit-masks covering supported fields to compare with spec, last and mask in 498 * \item. 499 * @param size 500 * Bit-Mask size in bytes. 501 * 502 * @return 503 * 0 on success. 504 */ 505 static int 506 mlx5_flow_item_validate(const struct rte_flow_item *item, 507 const uint8_t *mask, unsigned int size) 508 { 509 int ret = 0; 510 511 if (!item->spec && (item->mask || item->last)) 512 return -1; 513 if (item->spec && !item->mask) { 514 unsigned int i; 515 const uint8_t *spec = item->spec; 516 517 for (i = 0; i < size; ++i) 518 if ((spec[i] | mask[i]) != mask[i]) 519 return -1; 520 } 521 if (item->last && !item->mask) { 522 unsigned int i; 523 const uint8_t *spec = item->last; 524 525 for (i = 0; i < size; ++i) 526 if ((spec[i] | mask[i]) != mask[i]) 527 return -1; 528 } 529 if (item->mask) { 530 unsigned int i; 531 const uint8_t *spec = item->mask; 532 533 for (i = 0; i < size; ++i) 534 if ((spec[i] | mask[i]) != mask[i]) 535 return -1; 536 } 537 if (item->spec && item->last) { 538 uint8_t spec[size]; 539 uint8_t last[size]; 540 const uint8_t *apply = mask; 541 unsigned int i; 542 543 if (item->mask) 544 apply = item->mask; 545 for (i = 0; i < size; ++i) { 546 spec[i] = ((const uint8_t *)item->spec)[i] & apply[i]; 547 last[i] = ((const uint8_t *)item->last)[i] & apply[i]; 548 } 549 ret = memcmp(spec, last, size); 550 } 551 return ret; 552 } 553 554 /** 555 * Copy the RSS configuration from the user ones. 556 * 557 * @param priv 558 * Pointer to private structure. 559 * @param parser 560 * Internal parser structure. 561 * @param rss_conf 562 * User RSS configuration to save. 563 * 564 * @return 565 * 0 on success, errno value on failure. 566 */ 567 static int 568 priv_flow_convert_rss_conf(struct priv *priv, 569 struct mlx5_flow_parse *parser, 570 const struct rte_eth_rss_conf *rss_conf) 571 { 572 const struct rte_eth_rss_conf *rss; 573 574 if (rss_conf) { 575 if (rss_conf->rss_hf & MLX5_RSS_HF_MASK) 576 return EINVAL; 577 rss = rss_conf; 578 } else { 579 rss = &priv->rss_conf; 580 } 581 if (rss->rss_key_len > 40) 582 return EINVAL; 583 parser->rss_conf.rss_key_len = rss->rss_key_len; 584 parser->rss_conf.rss_hf = rss->rss_hf; 585 memcpy(parser->rss_key, rss->rss_key, rss->rss_key_len); 586 parser->rss_conf.rss_key = parser->rss_key; 587 return 0; 588 } 589 590 /** 591 * Extract attribute to the parser. 592 * 593 * @param priv 594 * Pointer to private structure. 595 * @param[in] attr 596 * Flow rule attributes. 597 * @param[out] error 598 * Perform verbose error reporting if not NULL. 599 * @param[in, out] parser 600 * Internal parser structure. 601 * 602 * @return 603 * 0 on success, a negative errno value otherwise and rte_errno is set. 604 */ 605 static int 606 priv_flow_convert_attributes(struct priv *priv, 607 const struct rte_flow_attr *attr, 608 struct rte_flow_error *error, 609 struct mlx5_flow_parse *parser) 610 { 611 (void)priv; 612 (void)parser; 613 if (attr->group) { 614 rte_flow_error_set(error, ENOTSUP, 615 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, 616 NULL, 617 "groups are not supported"); 618 return -rte_errno; 619 } 620 if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) { 621 rte_flow_error_set(error, ENOTSUP, 622 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, 623 NULL, 624 "priorities are not supported"); 625 return -rte_errno; 626 } 627 if (attr->egress) { 628 rte_flow_error_set(error, ENOTSUP, 629 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, 630 NULL, 631 "egress is not supported"); 632 return -rte_errno; 633 } 634 if (!attr->ingress) { 635 rte_flow_error_set(error, ENOTSUP, 636 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, 637 NULL, 638 "only ingress is supported"); 639 return -rte_errno; 640 } 641 return 0; 642 } 643 644 /** 645 * Extract actions request to the parser. 646 * 647 * @param priv 648 * Pointer to private structure. 649 * @param[in] actions 650 * Associated actions (list terminated by the END action). 651 * @param[out] error 652 * Perform verbose error reporting if not NULL. 653 * @param[in, out] parser 654 * Internal parser structure. 655 * 656 * @return 657 * 0 on success, a negative errno value otherwise and rte_errno is set. 658 */ 659 static int 660 priv_flow_convert_actions(struct priv *priv, 661 const struct rte_flow_action actions[], 662 struct rte_flow_error *error, 663 struct mlx5_flow_parse *parser) 664 { 665 /* 666 * Add default RSS configuration necessary for Verbs to create QP even 667 * if no RSS is necessary. 668 */ 669 priv_flow_convert_rss_conf(priv, parser, 670 (const struct rte_eth_rss_conf *) 671 &priv->rss_conf); 672 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) { 673 if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) { 674 continue; 675 } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) { 676 parser->drop = 1; 677 } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) { 678 const struct rte_flow_action_queue *queue = 679 (const struct rte_flow_action_queue *) 680 actions->conf; 681 uint16_t n; 682 uint16_t found = 0; 683 684 if (!queue || (queue->index > (priv->rxqs_n - 1))) 685 goto exit_action_not_supported; 686 for (n = 0; n < parser->queues_n; ++n) { 687 if (parser->queues[n] == queue->index) { 688 found = 1; 689 break; 690 } 691 } 692 if (parser->queues_n > 1 && !found) { 693 rte_flow_error_set(error, ENOTSUP, 694 RTE_FLOW_ERROR_TYPE_ACTION, 695 actions, 696 "queue action not in RSS queues"); 697 return -rte_errno; 698 } 699 if (!found) { 700 parser->queues_n = 1; 701 parser->queues[0] = queue->index; 702 } 703 } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { 704 const struct rte_flow_action_rss *rss = 705 (const struct rte_flow_action_rss *) 706 actions->conf; 707 uint16_t n; 708 709 if (!rss || !rss->num) { 710 rte_flow_error_set(error, EINVAL, 711 RTE_FLOW_ERROR_TYPE_ACTION, 712 actions, 713 "no valid queues"); 714 return -rte_errno; 715 } 716 if (parser->queues_n == 1) { 717 uint16_t found = 0; 718 719 assert(parser->queues_n); 720 for (n = 0; n < rss->num; ++n) { 721 if (parser->queues[0] == 722 rss->queue[n]) { 723 found = 1; 724 break; 725 } 726 } 727 if (!found) { 728 rte_flow_error_set(error, ENOTSUP, 729 RTE_FLOW_ERROR_TYPE_ACTION, 730 actions, 731 "queue action not in RSS" 732 " queues"); 733 return -rte_errno; 734 } 735 } 736 for (n = 0; n < rss->num; ++n) { 737 if (rss->queue[n] >= priv->rxqs_n) { 738 rte_flow_error_set(error, EINVAL, 739 RTE_FLOW_ERROR_TYPE_ACTION, 740 actions, 741 "queue id > number of" 742 " queues"); 743 return -rte_errno; 744 } 745 } 746 for (n = 0; n < rss->num; ++n) 747 parser->queues[n] = rss->queue[n]; 748 parser->queues_n = rss->num; 749 if (priv_flow_convert_rss_conf(priv, parser, 750 rss->rss_conf)) { 751 rte_flow_error_set(error, EINVAL, 752 RTE_FLOW_ERROR_TYPE_ACTION, 753 actions, 754 "wrong RSS configuration"); 755 return -rte_errno; 756 } 757 } else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) { 758 const struct rte_flow_action_mark *mark = 759 (const struct rte_flow_action_mark *) 760 actions->conf; 761 762 if (!mark) { 763 rte_flow_error_set(error, EINVAL, 764 RTE_FLOW_ERROR_TYPE_ACTION, 765 actions, 766 "mark must be defined"); 767 return -rte_errno; 768 } else if (mark->id >= MLX5_FLOW_MARK_MAX) { 769 rte_flow_error_set(error, ENOTSUP, 770 RTE_FLOW_ERROR_TYPE_ACTION, 771 actions, 772 "mark must be between 0" 773 " and 16777199"); 774 return -rte_errno; 775 } 776 parser->mark = 1; 777 parser->mark_id = mark->id; 778 } else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) { 779 parser->mark = 1; 780 } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT && 781 priv->counter_set_supported) { 782 parser->count = 1; 783 } else { 784 goto exit_action_not_supported; 785 } 786 } 787 if (parser->drop && parser->mark) 788 parser->mark = 0; 789 if (!parser->queues_n && !parser->drop) { 790 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, 791 NULL, "no valid action"); 792 return -rte_errno; 793 } 794 return 0; 795 exit_action_not_supported: 796 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 797 actions, "action not supported"); 798 return -rte_errno; 799 } 800 801 /** 802 * Validate items. 803 * 804 * @param priv 805 * Pointer to private structure. 806 * @param[in] items 807 * Pattern specification (list terminated by the END pattern item). 808 * @param[out] error 809 * Perform verbose error reporting if not NULL. 810 * @param[in, out] parser 811 * Internal parser structure. 812 * 813 * @return 814 * 0 on success, a negative errno value otherwise and rte_errno is set. 815 */ 816 static int 817 priv_flow_convert_items_validate(struct priv *priv, 818 const struct rte_flow_item items[], 819 struct rte_flow_error *error, 820 struct mlx5_flow_parse *parser) 821 { 822 const struct mlx5_flow_items *cur_item = mlx5_flow_items; 823 unsigned int i; 824 825 (void)priv; 826 /* Initialise the offsets to start after verbs attribute. */ 827 for (i = 0; i != hash_rxq_init_n; ++i) 828 parser->queue[i].offset = sizeof(struct ibv_flow_attr); 829 for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { 830 const struct mlx5_flow_items *token = NULL; 831 unsigned int n; 832 int err; 833 834 if (items->type == RTE_FLOW_ITEM_TYPE_VOID) 835 continue; 836 for (i = 0; 837 cur_item->items && 838 cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END; 839 ++i) { 840 if (cur_item->items[i] == items->type) { 841 token = &mlx5_flow_items[items->type]; 842 break; 843 } 844 } 845 if (!token) 846 goto exit_item_not_supported; 847 cur_item = token; 848 err = mlx5_flow_item_validate(items, 849 (const uint8_t *)cur_item->mask, 850 cur_item->mask_sz); 851 if (err) 852 goto exit_item_not_supported; 853 if (items->type == RTE_FLOW_ITEM_TYPE_VXLAN) { 854 if (parser->inner) { 855 rte_flow_error_set(error, ENOTSUP, 856 RTE_FLOW_ERROR_TYPE_ITEM, 857 items, 858 "cannot recognize multiple" 859 " VXLAN encapsulations"); 860 return -rte_errno; 861 } 862 parser->inner = IBV_FLOW_SPEC_INNER; 863 } 864 if (parser->drop || parser->queues_n == 1) { 865 parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz; 866 } else { 867 for (n = 0; n != hash_rxq_init_n; ++n) 868 parser->queue[n].offset += cur_item->dst_sz; 869 } 870 } 871 if (parser->mark) { 872 for (i = 0; i != hash_rxq_init_n; ++i) 873 parser->queue[i].offset += 874 sizeof(struct ibv_flow_spec_action_tag); 875 } 876 if (parser->count) { 877 unsigned int size = sizeof(struct ibv_flow_spec_counter_action); 878 879 for (i = 0; i != hash_rxq_init_n; ++i) 880 parser->queue[i].offset += size; 881 } 882 return 0; 883 exit_item_not_supported: 884 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, 885 items, "item not supported"); 886 return -rte_errno; 887 } 888 889 /** 890 * Allocate memory space to store verbs flow attributes. 891 * 892 * @param priv 893 * Pointer to private structure. 894 * @param[in] priority 895 * Flow priority. 896 * @param[in] size 897 * Amount of byte to allocate. 898 * @param[out] error 899 * Perform verbose error reporting if not NULL. 900 * 901 * @return 902 * A verbs flow attribute on success, NULL otherwise. 903 */ 904 static struct ibv_flow_attr* 905 priv_flow_convert_allocate(struct priv *priv, 906 unsigned int priority, 907 unsigned int size, 908 struct rte_flow_error *error) 909 { 910 struct ibv_flow_attr *ibv_attr; 911 912 (void)priv; 913 ibv_attr = rte_calloc(__func__, 1, size, 0); 914 if (!ibv_attr) { 915 rte_flow_error_set(error, ENOMEM, 916 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 917 NULL, 918 "cannot allocate verbs spec attributes."); 919 return NULL; 920 } 921 ibv_attr->priority = priority; 922 return ibv_attr; 923 } 924 925 /** 926 * Finalise verbs flow attributes. 927 * 928 * @param priv 929 * Pointer to private structure. 930 * @param[in, out] parser 931 * Internal parser structure. 932 */ 933 static void 934 priv_flow_convert_finalise(struct priv *priv, struct mlx5_flow_parse *parser) 935 { 936 const unsigned int ipv4 = 937 hash_rxq_init[parser->layer].ip_version == MLX5_IPV4; 938 const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6; 939 const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; 940 const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4; 941 const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4; 942 const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; 943 unsigned int i; 944 945 (void)priv; 946 if (parser->layer == HASH_RXQ_ETH) { 947 goto fill; 948 } else { 949 /* 950 * This layer becomes useless as the pattern define under 951 * layers. 952 */ 953 rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr); 954 parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; 955 } 956 /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */ 957 for (i = ohmin; i != (ohmax + 1); ++i) { 958 if (!parser->queue[i].ibv_attr) 959 continue; 960 rte_free(parser->queue[i].ibv_attr); 961 parser->queue[i].ibv_attr = NULL; 962 } 963 /* Remove impossible flow according to the RSS configuration. */ 964 if (hash_rxq_init[parser->layer].dpdk_rss_hf & 965 parser->rss_conf.rss_hf) { 966 /* Remove any other flow. */ 967 for (i = hmin; i != (hmax + 1); ++i) { 968 if ((i == parser->layer) || 969 (!parser->queue[i].ibv_attr)) 970 continue; 971 rte_free(parser->queue[i].ibv_attr); 972 parser->queue[i].ibv_attr = NULL; 973 } 974 } else if (!parser->queue[ip].ibv_attr) { 975 /* no RSS possible with the current configuration. */ 976 parser->queues_n = 1; 977 return; 978 } 979 fill: 980 /* 981 * Fill missing layers in verbs specifications, or compute the correct 982 * offset to allocate the memory space for the attributes and 983 * specifications. 984 */ 985 for (i = 0; i != hash_rxq_init_n - 1; ++i) { 986 union { 987 struct ibv_flow_spec_ipv4_ext ipv4; 988 struct ibv_flow_spec_ipv6 ipv6; 989 struct ibv_flow_spec_tcp_udp udp_tcp; 990 } specs; 991 void *dst; 992 uint16_t size; 993 994 if (i == parser->layer) 995 continue; 996 if (parser->layer == HASH_RXQ_ETH) { 997 if (hash_rxq_init[i].ip_version == MLX5_IPV4) { 998 size = sizeof(struct ibv_flow_spec_ipv4_ext); 999 specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){ 1000 .type = IBV_FLOW_SPEC_IPV4_EXT, 1001 .size = size, 1002 }; 1003 } else { 1004 size = sizeof(struct ibv_flow_spec_ipv6); 1005 specs.ipv6 = (struct ibv_flow_spec_ipv6){ 1006 .type = IBV_FLOW_SPEC_IPV6, 1007 .size = size, 1008 }; 1009 } 1010 if (parser->queue[i].ibv_attr) { 1011 dst = (void *)((uintptr_t) 1012 parser->queue[i].ibv_attr + 1013 parser->queue[i].offset); 1014 memcpy(dst, &specs, size); 1015 ++parser->queue[i].ibv_attr->num_of_specs; 1016 } 1017 parser->queue[i].offset += size; 1018 } 1019 if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) || 1020 (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) { 1021 size = sizeof(struct ibv_flow_spec_tcp_udp); 1022 specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) { 1023 .type = ((i == HASH_RXQ_UDPV4 || 1024 i == HASH_RXQ_UDPV6) ? 1025 IBV_FLOW_SPEC_UDP : 1026 IBV_FLOW_SPEC_TCP), 1027 .size = size, 1028 }; 1029 if (parser->queue[i].ibv_attr) { 1030 dst = (void *)((uintptr_t) 1031 parser->queue[i].ibv_attr + 1032 parser->queue[i].offset); 1033 memcpy(dst, &specs, size); 1034 ++parser->queue[i].ibv_attr->num_of_specs; 1035 } 1036 parser->queue[i].offset += size; 1037 } 1038 } 1039 } 1040 1041 /** 1042 * Validate and convert a flow supported by the NIC. 1043 * 1044 * @param priv 1045 * Pointer to private structure. 1046 * @param[in] attr 1047 * Flow rule attributes. 1048 * @param[in] pattern 1049 * Pattern specification (list terminated by the END pattern item). 1050 * @param[in] actions 1051 * Associated actions (list terminated by the END action). 1052 * @param[out] error 1053 * Perform verbose error reporting if not NULL. 1054 * @param[in, out] parser 1055 * Internal parser structure. 1056 * 1057 * @return 1058 * 0 on success, a negative errno value otherwise and rte_errno is set. 1059 */ 1060 static int 1061 priv_flow_convert(struct priv *priv, 1062 const struct rte_flow_attr *attr, 1063 const struct rte_flow_item items[], 1064 const struct rte_flow_action actions[], 1065 struct rte_flow_error *error, 1066 struct mlx5_flow_parse *parser) 1067 { 1068 const struct mlx5_flow_items *cur_item = mlx5_flow_items; 1069 unsigned int i; 1070 int ret; 1071 1072 /* First step. Validate the attributes, items and actions. */ 1073 *parser = (struct mlx5_flow_parse){ 1074 .create = parser->create, 1075 .layer = HASH_RXQ_ETH, 1076 .mark_id = MLX5_FLOW_MARK_DEFAULT, 1077 }; 1078 ret = priv_flow_convert_attributes(priv, attr, error, parser); 1079 if (ret) 1080 return ret; 1081 ret = priv_flow_convert_actions(priv, actions, error, parser); 1082 if (ret) 1083 return ret; 1084 ret = priv_flow_convert_items_validate(priv, items, error, parser); 1085 if (ret) 1086 return ret; 1087 priv_flow_convert_finalise(priv, parser); 1088 /* 1089 * Second step. 1090 * Allocate the memory space to store verbs specifications. 1091 */ 1092 if (parser->drop || parser->queues_n == 1) { 1093 unsigned int priority = 1094 attr->priority + 1095 hash_rxq_init[HASH_RXQ_ETH].flow_priority; 1096 unsigned int offset = parser->queue[HASH_RXQ_ETH].offset; 1097 1098 parser->queue[HASH_RXQ_ETH].ibv_attr = 1099 priv_flow_convert_allocate(priv, priority, 1100 offset, error); 1101 if (!parser->queue[HASH_RXQ_ETH].ibv_attr) 1102 return ENOMEM; 1103 parser->queue[HASH_RXQ_ETH].offset = 1104 sizeof(struct ibv_flow_attr); 1105 } else { 1106 for (i = 0; i != hash_rxq_init_n; ++i) { 1107 unsigned int priority = 1108 attr->priority + 1109 hash_rxq_init[i].flow_priority; 1110 unsigned int offset; 1111 1112 if (!(parser->rss_conf.rss_hf & 1113 hash_rxq_init[i].dpdk_rss_hf) && 1114 (i != HASH_RXQ_ETH)) 1115 continue; 1116 offset = parser->queue[i].offset; 1117 parser->queue[i].ibv_attr = 1118 priv_flow_convert_allocate(priv, priority, 1119 offset, error); 1120 if (!parser->queue[i].ibv_attr) 1121 goto exit_enomem; 1122 parser->queue[i].offset = sizeof(struct ibv_flow_attr); 1123 } 1124 } 1125 /* Third step. Conversion parse, fill the specifications. */ 1126 parser->inner = 0; 1127 for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { 1128 if (items->type == RTE_FLOW_ITEM_TYPE_VOID) 1129 continue; 1130 cur_item = &mlx5_flow_items[items->type]; 1131 ret = cur_item->convert(items, 1132 (cur_item->default_mask ? 1133 cur_item->default_mask : 1134 cur_item->mask), 1135 parser); 1136 if (ret) { 1137 rte_flow_error_set(error, ret, 1138 RTE_FLOW_ERROR_TYPE_ITEM, 1139 items, "item not supported"); 1140 goto exit_free; 1141 } 1142 } 1143 if (parser->mark) 1144 mlx5_flow_create_flag_mark(parser, parser->mark_id); 1145 if (parser->count && parser->create) { 1146 mlx5_flow_create_count(priv, parser); 1147 if (!parser->cs) 1148 goto exit_count_error; 1149 } 1150 /* 1151 * Last step. Complete missing specification to reach the RSS 1152 * configuration. 1153 */ 1154 if (parser->queues_n > 1) { 1155 priv_flow_convert_finalise(priv, parser); 1156 } else { 1157 /* 1158 * Action queue have their priority overridden with 1159 * Ethernet priority, this priority needs to be adjusted to 1160 * their most specific layer priority. 1161 */ 1162 parser->queue[HASH_RXQ_ETH].ibv_attr->priority = 1163 attr->priority + 1164 hash_rxq_init[parser->layer].flow_priority; 1165 } 1166 exit_free: 1167 /* Only verification is expected, all resources should be released. */ 1168 if (!parser->create) { 1169 for (i = 0; i != hash_rxq_init_n; ++i) { 1170 if (parser->queue[i].ibv_attr) { 1171 rte_free(parser->queue[i].ibv_attr); 1172 parser->queue[i].ibv_attr = NULL; 1173 } 1174 } 1175 } 1176 if (parser->allmulti && 1177 parser->layer == HASH_RXQ_ETH) { 1178 for (i = 0; i != hash_rxq_init_n; ++i) { 1179 if (!parser->queue[i].ibv_attr) 1180 continue; 1181 if (parser->queue[i].ibv_attr->num_of_specs != 1) 1182 break; 1183 parser->queue[i].ibv_attr->type = 1184 IBV_FLOW_ATTR_MC_DEFAULT; 1185 } 1186 } 1187 return ret; 1188 exit_enomem: 1189 for (i = 0; i != hash_rxq_init_n; ++i) { 1190 if (parser->queue[i].ibv_attr) { 1191 rte_free(parser->queue[i].ibv_attr); 1192 parser->queue[i].ibv_attr = NULL; 1193 } 1194 } 1195 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1196 NULL, "cannot allocate verbs spec attributes."); 1197 return ret; 1198 exit_count_error: 1199 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1200 NULL, "cannot create counter."); 1201 return rte_errno; 1202 } 1203 1204 /** 1205 * Copy the specification created into the flow. 1206 * 1207 * @param parser 1208 * Internal parser structure. 1209 * @param src 1210 * Create specification. 1211 * @param size 1212 * Size in bytes of the specification to copy. 1213 */ 1214 static void 1215 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, 1216 unsigned int size) 1217 { 1218 unsigned int i; 1219 void *dst; 1220 1221 for (i = 0; i != hash_rxq_init_n; ++i) { 1222 if (!parser->queue[i].ibv_attr) 1223 continue; 1224 /* Specification must be the same l3 type or none. */ 1225 if (parser->layer == HASH_RXQ_ETH || 1226 (hash_rxq_init[parser->layer].ip_version == 1227 hash_rxq_init[i].ip_version) || 1228 (hash_rxq_init[i].ip_version == 0)) { 1229 dst = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1230 parser->queue[i].offset); 1231 memcpy(dst, src, size); 1232 ++parser->queue[i].ibv_attr->num_of_specs; 1233 parser->queue[i].offset += size; 1234 } 1235 } 1236 } 1237 1238 /** 1239 * Convert Ethernet item to Verbs specification. 1240 * 1241 * @param item[in] 1242 * Item specification. 1243 * @param default_mask[in] 1244 * Default bit-masks to use when item->mask is not provided. 1245 * @param data[in, out] 1246 * User structure. 1247 */ 1248 static int 1249 mlx5_flow_create_eth(const struct rte_flow_item *item, 1250 const void *default_mask, 1251 void *data) 1252 { 1253 const struct rte_flow_item_eth *spec = item->spec; 1254 const struct rte_flow_item_eth *mask = item->mask; 1255 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1256 const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); 1257 struct ibv_flow_spec_eth eth = { 1258 .type = parser->inner | IBV_FLOW_SPEC_ETH, 1259 .size = eth_size, 1260 }; 1261 1262 /* Don't update layer for the inner pattern. */ 1263 if (!parser->inner) 1264 parser->layer = HASH_RXQ_ETH; 1265 if (spec) { 1266 unsigned int i; 1267 1268 if (!mask) 1269 mask = default_mask; 1270 memcpy(ð.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN); 1271 memcpy(ð.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN); 1272 eth.val.ether_type = spec->type; 1273 memcpy(ð.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN); 1274 memcpy(ð.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN); 1275 eth.mask.ether_type = mask->type; 1276 /* Remove unwanted bits from values. */ 1277 for (i = 0; i < ETHER_ADDR_LEN; ++i) { 1278 eth.val.dst_mac[i] &= eth.mask.dst_mac[i]; 1279 eth.val.src_mac[i] &= eth.mask.src_mac[i]; 1280 } 1281 eth.val.ether_type &= eth.mask.ether_type; 1282 } 1283 mlx5_flow_create_copy(parser, ð, eth_size); 1284 parser->allmulti = eth.val.dst_mac[0] & 1; 1285 return 0; 1286 } 1287 1288 /** 1289 * Convert VLAN item to Verbs specification. 1290 * 1291 * @param item[in] 1292 * Item specification. 1293 * @param default_mask[in] 1294 * Default bit-masks to use when item->mask is not provided. 1295 * @param data[in, out] 1296 * User structure. 1297 */ 1298 static int 1299 mlx5_flow_create_vlan(const struct rte_flow_item *item, 1300 const void *default_mask, 1301 void *data) 1302 { 1303 const struct rte_flow_item_vlan *spec = item->spec; 1304 const struct rte_flow_item_vlan *mask = item->mask; 1305 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1306 struct ibv_flow_spec_eth *eth; 1307 const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); 1308 1309 if (spec) { 1310 unsigned int i; 1311 if (!mask) 1312 mask = default_mask; 1313 1314 for (i = 0; i != hash_rxq_init_n; ++i) { 1315 if (!parser->queue[i].ibv_attr) 1316 continue; 1317 1318 eth = (void *)((uintptr_t)parser->queue[i].ibv_attr + 1319 parser->queue[i].offset - eth_size); 1320 eth->val.vlan_tag = spec->tci; 1321 eth->mask.vlan_tag = mask->tci; 1322 eth->val.vlan_tag &= eth->mask.vlan_tag; 1323 } 1324 } 1325 return 0; 1326 } 1327 1328 /** 1329 * Convert IPv4 item to Verbs specification. 1330 * 1331 * @param item[in] 1332 * Item specification. 1333 * @param default_mask[in] 1334 * Default bit-masks to use when item->mask is not provided. 1335 * @param data[in, out] 1336 * User structure. 1337 */ 1338 static int 1339 mlx5_flow_create_ipv4(const struct rte_flow_item *item, 1340 const void *default_mask, 1341 void *data) 1342 { 1343 const struct rte_flow_item_ipv4 *spec = item->spec; 1344 const struct rte_flow_item_ipv4 *mask = item->mask; 1345 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1346 unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext); 1347 struct ibv_flow_spec_ipv4_ext ipv4 = { 1348 .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT, 1349 .size = ipv4_size, 1350 }; 1351 1352 /* Don't update layer for the inner pattern. */ 1353 if (!parser->inner) 1354 parser->layer = HASH_RXQ_IPV4; 1355 if (spec) { 1356 if (!mask) 1357 mask = default_mask; 1358 ipv4.val = (struct ibv_flow_ipv4_ext_filter){ 1359 .src_ip = spec->hdr.src_addr, 1360 .dst_ip = spec->hdr.dst_addr, 1361 .proto = spec->hdr.next_proto_id, 1362 .tos = spec->hdr.type_of_service, 1363 }; 1364 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){ 1365 .src_ip = mask->hdr.src_addr, 1366 .dst_ip = mask->hdr.dst_addr, 1367 .proto = mask->hdr.next_proto_id, 1368 .tos = mask->hdr.type_of_service, 1369 }; 1370 /* Remove unwanted bits from values. */ 1371 ipv4.val.src_ip &= ipv4.mask.src_ip; 1372 ipv4.val.dst_ip &= ipv4.mask.dst_ip; 1373 ipv4.val.proto &= ipv4.mask.proto; 1374 ipv4.val.tos &= ipv4.mask.tos; 1375 } 1376 mlx5_flow_create_copy(parser, &ipv4, ipv4_size); 1377 return 0; 1378 } 1379 1380 /** 1381 * Convert IPv6 item to Verbs specification. 1382 * 1383 * @param item[in] 1384 * Item specification. 1385 * @param default_mask[in] 1386 * Default bit-masks to use when item->mask is not provided. 1387 * @param data[in, out] 1388 * User structure. 1389 */ 1390 static int 1391 mlx5_flow_create_ipv6(const struct rte_flow_item *item, 1392 const void *default_mask, 1393 void *data) 1394 { 1395 const struct rte_flow_item_ipv6 *spec = item->spec; 1396 const struct rte_flow_item_ipv6 *mask = item->mask; 1397 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1398 unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6); 1399 struct ibv_flow_spec_ipv6 ipv6 = { 1400 .type = parser->inner | IBV_FLOW_SPEC_IPV6, 1401 .size = ipv6_size, 1402 }; 1403 1404 /* Don't update layer for the inner pattern. */ 1405 if (!parser->inner) 1406 parser->layer = HASH_RXQ_IPV6; 1407 if (spec) { 1408 unsigned int i; 1409 1410 if (!mask) 1411 mask = default_mask; 1412 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr, 1413 RTE_DIM(ipv6.val.src_ip)); 1414 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr, 1415 RTE_DIM(ipv6.val.dst_ip)); 1416 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr, 1417 RTE_DIM(ipv6.mask.src_ip)); 1418 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr, 1419 RTE_DIM(ipv6.mask.dst_ip)); 1420 ipv6.mask.flow_label = mask->hdr.vtc_flow; 1421 ipv6.mask.next_hdr = mask->hdr.proto; 1422 ipv6.mask.hop_limit = mask->hdr.hop_limits; 1423 /* Remove unwanted bits from values. */ 1424 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) { 1425 ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i]; 1426 ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i]; 1427 } 1428 ipv6.val.flow_label &= ipv6.mask.flow_label; 1429 ipv6.val.next_hdr &= ipv6.mask.next_hdr; 1430 ipv6.val.hop_limit &= ipv6.mask.hop_limit; 1431 } 1432 mlx5_flow_create_copy(parser, &ipv6, ipv6_size); 1433 return 0; 1434 } 1435 1436 /** 1437 * Convert UDP item to Verbs specification. 1438 * 1439 * @param item[in] 1440 * Item specification. 1441 * @param default_mask[in] 1442 * Default bit-masks to use when item->mask is not provided. 1443 * @param data[in, out] 1444 * User structure. 1445 */ 1446 static int 1447 mlx5_flow_create_udp(const struct rte_flow_item *item, 1448 const void *default_mask, 1449 void *data) 1450 { 1451 const struct rte_flow_item_udp *spec = item->spec; 1452 const struct rte_flow_item_udp *mask = item->mask; 1453 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1454 unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp); 1455 struct ibv_flow_spec_tcp_udp udp = { 1456 .type = parser->inner | IBV_FLOW_SPEC_UDP, 1457 .size = udp_size, 1458 }; 1459 1460 /* Don't update layer for the inner pattern. */ 1461 if (!parser->inner) { 1462 if (parser->layer == HASH_RXQ_IPV4) 1463 parser->layer = HASH_RXQ_UDPV4; 1464 else 1465 parser->layer = HASH_RXQ_UDPV6; 1466 } 1467 if (spec) { 1468 if (!mask) 1469 mask = default_mask; 1470 udp.val.dst_port = spec->hdr.dst_port; 1471 udp.val.src_port = spec->hdr.src_port; 1472 udp.mask.dst_port = mask->hdr.dst_port; 1473 udp.mask.src_port = mask->hdr.src_port; 1474 /* Remove unwanted bits from values. */ 1475 udp.val.src_port &= udp.mask.src_port; 1476 udp.val.dst_port &= udp.mask.dst_port; 1477 } 1478 mlx5_flow_create_copy(parser, &udp, udp_size); 1479 return 0; 1480 } 1481 1482 /** 1483 * Convert TCP item to Verbs specification. 1484 * 1485 * @param item[in] 1486 * Item specification. 1487 * @param default_mask[in] 1488 * Default bit-masks to use when item->mask is not provided. 1489 * @param data[in, out] 1490 * User structure. 1491 */ 1492 static int 1493 mlx5_flow_create_tcp(const struct rte_flow_item *item, 1494 const void *default_mask, 1495 void *data) 1496 { 1497 const struct rte_flow_item_tcp *spec = item->spec; 1498 const struct rte_flow_item_tcp *mask = item->mask; 1499 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1500 unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp); 1501 struct ibv_flow_spec_tcp_udp tcp = { 1502 .type = parser->inner | IBV_FLOW_SPEC_TCP, 1503 .size = tcp_size, 1504 }; 1505 1506 /* Don't update layer for the inner pattern. */ 1507 if (!parser->inner) { 1508 if (parser->layer == HASH_RXQ_IPV4) 1509 parser->layer = HASH_RXQ_TCPV4; 1510 else 1511 parser->layer = HASH_RXQ_TCPV6; 1512 } 1513 if (spec) { 1514 if (!mask) 1515 mask = default_mask; 1516 tcp.val.dst_port = spec->hdr.dst_port; 1517 tcp.val.src_port = spec->hdr.src_port; 1518 tcp.mask.dst_port = mask->hdr.dst_port; 1519 tcp.mask.src_port = mask->hdr.src_port; 1520 /* Remove unwanted bits from values. */ 1521 tcp.val.src_port &= tcp.mask.src_port; 1522 tcp.val.dst_port &= tcp.mask.dst_port; 1523 } 1524 mlx5_flow_create_copy(parser, &tcp, tcp_size); 1525 return 0; 1526 } 1527 1528 /** 1529 * Convert VXLAN item to Verbs specification. 1530 * 1531 * @param item[in] 1532 * Item specification. 1533 * @param default_mask[in] 1534 * Default bit-masks to use when item->mask is not provided. 1535 * @param data[in, out] 1536 * User structure. 1537 */ 1538 static int 1539 mlx5_flow_create_vxlan(const struct rte_flow_item *item, 1540 const void *default_mask, 1541 void *data) 1542 { 1543 const struct rte_flow_item_vxlan *spec = item->spec; 1544 const struct rte_flow_item_vxlan *mask = item->mask; 1545 struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; 1546 unsigned int size = sizeof(struct ibv_flow_spec_tunnel); 1547 struct ibv_flow_spec_tunnel vxlan = { 1548 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, 1549 .size = size, 1550 }; 1551 union vni { 1552 uint32_t vlan_id; 1553 uint8_t vni[4]; 1554 } id; 1555 1556 id.vni[0] = 0; 1557 parser->inner = IBV_FLOW_SPEC_INNER; 1558 if (spec) { 1559 if (!mask) 1560 mask = default_mask; 1561 memcpy(&id.vni[1], spec->vni, 3); 1562 vxlan.val.tunnel_id = id.vlan_id; 1563 memcpy(&id.vni[1], mask->vni, 3); 1564 vxlan.mask.tunnel_id = id.vlan_id; 1565 /* Remove unwanted bits from values. */ 1566 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; 1567 } 1568 /* 1569 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this 1570 * layer is defined in the Verbs specification it is interpreted as 1571 * wildcard and all packets will match this rule, if it follows a full 1572 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers 1573 * before will also match this rule. 1574 * To avoid such situation, VNI 0 is currently refused. 1575 */ 1576 if (!vxlan.val.tunnel_id) 1577 return EINVAL; 1578 mlx5_flow_create_copy(parser, &vxlan, size); 1579 return 0; 1580 } 1581 1582 /** 1583 * Convert mark/flag action to Verbs specification. 1584 * 1585 * @param parser 1586 * Internal parser structure. 1587 * @param mark_id 1588 * Mark identifier. 1589 */ 1590 static int 1591 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id) 1592 { 1593 unsigned int size = sizeof(struct ibv_flow_spec_action_tag); 1594 struct ibv_flow_spec_action_tag tag = { 1595 .type = IBV_FLOW_SPEC_ACTION_TAG, 1596 .size = size, 1597 .tag_id = mlx5_flow_mark_set(mark_id), 1598 }; 1599 1600 assert(parser->mark); 1601 mlx5_flow_create_copy(parser, &tag, size); 1602 return 0; 1603 } 1604 1605 /** 1606 * Convert count action to Verbs specification. 1607 * 1608 * @param priv 1609 * Pointer to private structure. 1610 * @param parser 1611 * Pointer to MLX5 flow parser structure. 1612 * 1613 * @return 1614 * 0 on success, errno value on failure. 1615 */ 1616 static int 1617 mlx5_flow_create_count(struct priv *priv __rte_unused, 1618 struct mlx5_flow_parse *parser __rte_unused) 1619 { 1620 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 1621 unsigned int size = sizeof(struct ibv_flow_spec_counter_action); 1622 struct ibv_counter_set_init_attr init_attr = {0}; 1623 struct ibv_flow_spec_counter_action counter = { 1624 .type = IBV_FLOW_SPEC_ACTION_COUNT, 1625 .size = size, 1626 .counter_set_handle = 0, 1627 }; 1628 1629 init_attr.counter_set_id = 0; 1630 parser->cs = ibv_create_counter_set(priv->ctx, &init_attr); 1631 if (!parser->cs) 1632 return EINVAL; 1633 counter.counter_set_handle = parser->cs->handle; 1634 mlx5_flow_create_copy(parser, &counter, size); 1635 #endif 1636 return 0; 1637 } 1638 1639 /** 1640 * Complete flow rule creation with a drop queue. 1641 * 1642 * @param priv 1643 * Pointer to private structure. 1644 * @param parser 1645 * Internal parser structure. 1646 * @param flow 1647 * Pointer to the rte_flow. 1648 * @param[out] error 1649 * Perform verbose error reporting if not NULL. 1650 * 1651 * @return 1652 * 0 on success, errno value on failure. 1653 */ 1654 static int 1655 priv_flow_create_action_queue_drop(struct priv *priv, 1656 struct mlx5_flow_parse *parser, 1657 struct rte_flow *flow, 1658 struct rte_flow_error *error) 1659 { 1660 struct ibv_flow_spec_action_drop *drop; 1661 unsigned int size = sizeof(struct ibv_flow_spec_action_drop); 1662 int err = 0; 1663 1664 assert(priv->pd); 1665 assert(priv->ctx); 1666 flow->drop = 1; 1667 drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr + 1668 parser->queue[HASH_RXQ_ETH].offset); 1669 *drop = (struct ibv_flow_spec_action_drop){ 1670 .type = IBV_FLOW_SPEC_ACTION_DROP, 1671 .size = size, 1672 }; 1673 ++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs; 1674 parser->queue[HASH_RXQ_ETH].offset += size; 1675 flow->frxq[HASH_RXQ_ETH].ibv_attr = 1676 parser->queue[HASH_RXQ_ETH].ibv_attr; 1677 if (parser->count) 1678 flow->cs = parser->cs; 1679 if (!priv->dev->data->dev_started) 1680 return 0; 1681 parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; 1682 flow->frxq[HASH_RXQ_ETH].ibv_flow = 1683 ibv_create_flow(priv->flow_drop_queue->qp, 1684 flow->frxq[HASH_RXQ_ETH].ibv_attr); 1685 if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) { 1686 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, 1687 NULL, "flow rule creation failure"); 1688 err = ENOMEM; 1689 goto error; 1690 } 1691 return 0; 1692 error: 1693 assert(flow); 1694 if (flow->frxq[HASH_RXQ_ETH].ibv_flow) { 1695 claim_zero(ibv_destroy_flow(flow->frxq[HASH_RXQ_ETH].ibv_flow)); 1696 flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL; 1697 } 1698 if (flow->frxq[HASH_RXQ_ETH].ibv_attr) { 1699 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr); 1700 flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL; 1701 } 1702 if (flow->cs) { 1703 claim_zero(ibv_destroy_counter_set(flow->cs)); 1704 flow->cs = NULL; 1705 parser->cs = NULL; 1706 } 1707 return err; 1708 } 1709 1710 /** 1711 * Create hash Rx queues when RSS is enabled. 1712 * 1713 * @param priv 1714 * Pointer to private structure. 1715 * @param parser 1716 * Internal parser structure. 1717 * @param flow 1718 * Pointer to the rte_flow. 1719 * @param[out] error 1720 * Perform verbose error reporting if not NULL. 1721 * 1722 * @return 1723 * 0 on success, a errno value otherwise and rte_errno is set. 1724 */ 1725 static int 1726 priv_flow_create_action_queue_rss(struct priv *priv, 1727 struct mlx5_flow_parse *parser, 1728 struct rte_flow *flow, 1729 struct rte_flow_error *error) 1730 { 1731 unsigned int i; 1732 1733 for (i = 0; i != hash_rxq_init_n; ++i) { 1734 uint64_t hash_fields; 1735 1736 if (!parser->queue[i].ibv_attr) 1737 continue; 1738 flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr; 1739 parser->queue[i].ibv_attr = NULL; 1740 hash_fields = hash_rxq_init[i].hash_fields; 1741 if (!priv->dev->data->dev_started) 1742 continue; 1743 flow->frxq[i].hrxq = 1744 mlx5_priv_hrxq_get(priv, 1745 parser->rss_conf.rss_key, 1746 parser->rss_conf.rss_key_len, 1747 hash_fields, 1748 parser->queues, 1749 parser->queues_n); 1750 if (flow->frxq[i].hrxq) 1751 continue; 1752 flow->frxq[i].hrxq = 1753 mlx5_priv_hrxq_new(priv, 1754 parser->rss_conf.rss_key, 1755 parser->rss_conf.rss_key_len, 1756 hash_fields, 1757 parser->queues, 1758 parser->queues_n); 1759 if (!flow->frxq[i].hrxq) { 1760 rte_flow_error_set(error, ENOMEM, 1761 RTE_FLOW_ERROR_TYPE_HANDLE, 1762 NULL, "cannot create hash rxq"); 1763 return ENOMEM; 1764 } 1765 } 1766 return 0; 1767 } 1768 1769 /** 1770 * Complete flow rule creation. 1771 * 1772 * @param priv 1773 * Pointer to private structure. 1774 * @param parser 1775 * Internal parser structure. 1776 * @param flow 1777 * Pointer to the rte_flow. 1778 * @param[out] error 1779 * Perform verbose error reporting if not NULL. 1780 * 1781 * @return 1782 * 0 on success, a errno value otherwise and rte_errno is set. 1783 */ 1784 static int 1785 priv_flow_create_action_queue(struct priv *priv, 1786 struct mlx5_flow_parse *parser, 1787 struct rte_flow *flow, 1788 struct rte_flow_error *error) 1789 { 1790 int err = 0; 1791 unsigned int i; 1792 1793 assert(priv->pd); 1794 assert(priv->ctx); 1795 assert(!parser->drop); 1796 err = priv_flow_create_action_queue_rss(priv, parser, flow, error); 1797 if (err) 1798 goto error; 1799 if (parser->count) 1800 flow->cs = parser->cs; 1801 if (!priv->dev->data->dev_started) 1802 return 0; 1803 for (i = 0; i != hash_rxq_init_n; ++i) { 1804 if (!flow->frxq[i].hrxq) 1805 continue; 1806 flow->frxq[i].ibv_flow = 1807 ibv_create_flow(flow->frxq[i].hrxq->qp, 1808 flow->frxq[i].ibv_attr); 1809 if (!flow->frxq[i].ibv_flow) { 1810 rte_flow_error_set(error, ENOMEM, 1811 RTE_FLOW_ERROR_TYPE_HANDLE, 1812 NULL, "flow rule creation failure"); 1813 err = ENOMEM; 1814 goto error; 1815 } 1816 DEBUG("%p type %d QP %p ibv_flow %p", 1817 (void *)flow, i, 1818 (void *)flow->frxq[i].hrxq, 1819 (void *)flow->frxq[i].ibv_flow); 1820 } 1821 for (i = 0; i != parser->queues_n; ++i) { 1822 struct mlx5_rxq_data *q = 1823 (*priv->rxqs)[parser->queues[i]]; 1824 1825 q->mark |= parser->mark; 1826 } 1827 return 0; 1828 error: 1829 assert(flow); 1830 for (i = 0; i != hash_rxq_init_n; ++i) { 1831 if (flow->frxq[i].ibv_flow) { 1832 struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow; 1833 1834 claim_zero(ibv_destroy_flow(ibv_flow)); 1835 } 1836 if (flow->frxq[i].hrxq) 1837 mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq); 1838 if (flow->frxq[i].ibv_attr) 1839 rte_free(flow->frxq[i].ibv_attr); 1840 } 1841 if (flow->cs) { 1842 claim_zero(ibv_destroy_counter_set(flow->cs)); 1843 flow->cs = NULL; 1844 parser->cs = NULL; 1845 } 1846 return err; 1847 } 1848 1849 /** 1850 * Convert a flow. 1851 * 1852 * @param priv 1853 * Pointer to private structure. 1854 * @param list 1855 * Pointer to a TAILQ flow list. 1856 * @param[in] attr 1857 * Flow rule attributes. 1858 * @param[in] pattern 1859 * Pattern specification (list terminated by the END pattern item). 1860 * @param[in] actions 1861 * Associated actions (list terminated by the END action). 1862 * @param[out] error 1863 * Perform verbose error reporting if not NULL. 1864 * 1865 * @return 1866 * A flow on success, NULL otherwise. 1867 */ 1868 static struct rte_flow * 1869 priv_flow_create(struct priv *priv, 1870 struct mlx5_flows *list, 1871 const struct rte_flow_attr *attr, 1872 const struct rte_flow_item items[], 1873 const struct rte_flow_action actions[], 1874 struct rte_flow_error *error) 1875 { 1876 struct mlx5_flow_parse parser = { .create = 1, }; 1877 struct rte_flow *flow = NULL; 1878 unsigned int i; 1879 int err; 1880 1881 err = priv_flow_convert(priv, attr, items, actions, error, &parser); 1882 if (err) 1883 goto exit; 1884 flow = rte_calloc(__func__, 1, 1885 sizeof(*flow) + parser.queues_n * sizeof(uint16_t), 1886 0); 1887 if (!flow) { 1888 rte_flow_error_set(error, ENOMEM, 1889 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1890 NULL, 1891 "cannot allocate flow memory"); 1892 return NULL; 1893 } 1894 /* Copy queues configuration. */ 1895 flow->queues = (uint16_t (*)[])(flow + 1); 1896 memcpy(flow->queues, parser.queues, parser.queues_n * sizeof(uint16_t)); 1897 flow->queues_n = parser.queues_n; 1898 flow->mark = parser.mark; 1899 /* Copy RSS configuration. */ 1900 flow->rss_conf = parser.rss_conf; 1901 flow->rss_conf.rss_key = flow->rss_key; 1902 memcpy(flow->rss_key, parser.rss_key, parser.rss_conf.rss_key_len); 1903 /* finalise the flow. */ 1904 if (parser.drop) 1905 err = priv_flow_create_action_queue_drop(priv, &parser, flow, 1906 error); 1907 else 1908 err = priv_flow_create_action_queue(priv, &parser, flow, error); 1909 if (err) 1910 goto exit; 1911 TAILQ_INSERT_TAIL(list, flow, next); 1912 DEBUG("Flow created %p", (void *)flow); 1913 return flow; 1914 exit: 1915 for (i = 0; i != hash_rxq_init_n; ++i) { 1916 if (parser.queue[i].ibv_attr) 1917 rte_free(parser.queue[i].ibv_attr); 1918 } 1919 rte_free(flow); 1920 return NULL; 1921 } 1922 1923 /** 1924 * Validate a flow supported by the NIC. 1925 * 1926 * @see rte_flow_validate() 1927 * @see rte_flow_ops 1928 */ 1929 int 1930 mlx5_flow_validate(struct rte_eth_dev *dev, 1931 const struct rte_flow_attr *attr, 1932 const struct rte_flow_item items[], 1933 const struct rte_flow_action actions[], 1934 struct rte_flow_error *error) 1935 { 1936 struct priv *priv = dev->data->dev_private; 1937 int ret; 1938 struct mlx5_flow_parse parser = { .create = 0, }; 1939 1940 priv_lock(priv); 1941 ret = priv_flow_convert(priv, attr, items, actions, error, &parser); 1942 priv_unlock(priv); 1943 return ret; 1944 } 1945 1946 /** 1947 * Create a flow. 1948 * 1949 * @see rte_flow_create() 1950 * @see rte_flow_ops 1951 */ 1952 struct rte_flow * 1953 mlx5_flow_create(struct rte_eth_dev *dev, 1954 const struct rte_flow_attr *attr, 1955 const struct rte_flow_item items[], 1956 const struct rte_flow_action actions[], 1957 struct rte_flow_error *error) 1958 { 1959 struct priv *priv = dev->data->dev_private; 1960 struct rte_flow *flow; 1961 1962 priv_lock(priv); 1963 flow = priv_flow_create(priv, &priv->flows, attr, items, actions, 1964 error); 1965 priv_unlock(priv); 1966 return flow; 1967 } 1968 1969 /** 1970 * Destroy a flow. 1971 * 1972 * @param priv 1973 * Pointer to private structure. 1974 * @param list 1975 * Pointer to a TAILQ flow list. 1976 * @param[in] flow 1977 * Flow to destroy. 1978 */ 1979 static void 1980 priv_flow_destroy(struct priv *priv, 1981 struct mlx5_flows *list, 1982 struct rte_flow *flow) 1983 { 1984 unsigned int i; 1985 1986 if (flow->drop || !flow->mark) 1987 goto free; 1988 for (i = 0; i != flow->queues_n; ++i) { 1989 struct rte_flow *tmp; 1990 int mark = 0; 1991 1992 /* 1993 * To remove the mark from the queue, the queue must not be 1994 * present in any other marked flow (RSS or not). 1995 */ 1996 TAILQ_FOREACH(tmp, list, next) { 1997 unsigned int j; 1998 uint16_t *tqs = NULL; 1999 uint16_t tq_n = 0; 2000 2001 if (!tmp->mark) 2002 continue; 2003 for (j = 0; j != hash_rxq_init_n; ++j) { 2004 if (!tmp->frxq[j].hrxq) 2005 continue; 2006 tqs = tmp->frxq[j].hrxq->ind_table->queues; 2007 tq_n = tmp->frxq[j].hrxq->ind_table->queues_n; 2008 } 2009 if (!tq_n) 2010 continue; 2011 for (j = 0; (j != tq_n) && !mark; j++) 2012 if (tqs[j] == (*flow->queues)[i]) 2013 mark = 1; 2014 } 2015 (*priv->rxqs)[(*flow->queues)[i]]->mark = mark; 2016 } 2017 free: 2018 if (flow->drop) { 2019 if (flow->frxq[HASH_RXQ_ETH].ibv_flow) 2020 claim_zero(ibv_destroy_flow 2021 (flow->frxq[HASH_RXQ_ETH].ibv_flow)); 2022 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr); 2023 } else { 2024 for (i = 0; i != hash_rxq_init_n; ++i) { 2025 struct mlx5_flow *frxq = &flow->frxq[i]; 2026 2027 if (frxq->ibv_flow) 2028 claim_zero(ibv_destroy_flow(frxq->ibv_flow)); 2029 if (frxq->hrxq) 2030 mlx5_priv_hrxq_release(priv, frxq->hrxq); 2031 if (frxq->ibv_attr) 2032 rte_free(frxq->ibv_attr); 2033 } 2034 } 2035 if (flow->cs) { 2036 claim_zero(ibv_destroy_counter_set(flow->cs)); 2037 flow->cs = NULL; 2038 } 2039 TAILQ_REMOVE(list, flow, next); 2040 DEBUG("Flow destroyed %p", (void *)flow); 2041 rte_free(flow); 2042 } 2043 2044 /** 2045 * Destroy all flows. 2046 * 2047 * @param priv 2048 * Pointer to private structure. 2049 * @param list 2050 * Pointer to a TAILQ flow list. 2051 */ 2052 void 2053 priv_flow_flush(struct priv *priv, struct mlx5_flows *list) 2054 { 2055 while (!TAILQ_EMPTY(list)) { 2056 struct rte_flow *flow; 2057 2058 flow = TAILQ_FIRST(list); 2059 priv_flow_destroy(priv, list, flow); 2060 } 2061 } 2062 2063 /** 2064 * Create drop queue. 2065 * 2066 * @param priv 2067 * Pointer to private structure. 2068 * 2069 * @return 2070 * 0 on success. 2071 */ 2072 int 2073 priv_flow_create_drop_queue(struct priv *priv) 2074 { 2075 struct mlx5_hrxq_drop *fdq = NULL; 2076 2077 assert(priv->pd); 2078 assert(priv->ctx); 2079 fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0); 2080 if (!fdq) { 2081 WARN("cannot allocate memory for drop queue"); 2082 goto error; 2083 } 2084 fdq->cq = ibv_create_cq(priv->ctx, 1, NULL, NULL, 0); 2085 if (!fdq->cq) { 2086 WARN("cannot allocate CQ for drop queue"); 2087 goto error; 2088 } 2089 fdq->wq = ibv_create_wq(priv->ctx, 2090 &(struct ibv_wq_init_attr){ 2091 .wq_type = IBV_WQT_RQ, 2092 .max_wr = 1, 2093 .max_sge = 1, 2094 .pd = priv->pd, 2095 .cq = fdq->cq, 2096 }); 2097 if (!fdq->wq) { 2098 WARN("cannot allocate WQ for drop queue"); 2099 goto error; 2100 } 2101 fdq->ind_table = ibv_create_rwq_ind_table(priv->ctx, 2102 &(struct ibv_rwq_ind_table_init_attr){ 2103 .log_ind_tbl_size = 0, 2104 .ind_tbl = &fdq->wq, 2105 .comp_mask = 0, 2106 }); 2107 if (!fdq->ind_table) { 2108 WARN("cannot allocate indirection table for drop queue"); 2109 goto error; 2110 } 2111 fdq->qp = ibv_create_qp_ex(priv->ctx, 2112 &(struct ibv_qp_init_attr_ex){ 2113 .qp_type = IBV_QPT_RAW_PACKET, 2114 .comp_mask = 2115 IBV_QP_INIT_ATTR_PD | 2116 IBV_QP_INIT_ATTR_IND_TABLE | 2117 IBV_QP_INIT_ATTR_RX_HASH, 2118 .rx_hash_conf = (struct ibv_rx_hash_conf){ 2119 .rx_hash_function = 2120 IBV_RX_HASH_FUNC_TOEPLITZ, 2121 .rx_hash_key_len = rss_hash_default_key_len, 2122 .rx_hash_key = rss_hash_default_key, 2123 .rx_hash_fields_mask = 0, 2124 }, 2125 .rwq_ind_tbl = fdq->ind_table, 2126 .pd = priv->pd 2127 }); 2128 if (!fdq->qp) { 2129 WARN("cannot allocate QP for drop queue"); 2130 goto error; 2131 } 2132 priv->flow_drop_queue = fdq; 2133 return 0; 2134 error: 2135 if (fdq->qp) 2136 claim_zero(ibv_destroy_qp(fdq->qp)); 2137 if (fdq->ind_table) 2138 claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table)); 2139 if (fdq->wq) 2140 claim_zero(ibv_destroy_wq(fdq->wq)); 2141 if (fdq->cq) 2142 claim_zero(ibv_destroy_cq(fdq->cq)); 2143 if (fdq) 2144 rte_free(fdq); 2145 priv->flow_drop_queue = NULL; 2146 return -1; 2147 } 2148 2149 /** 2150 * Delete drop queue. 2151 * 2152 * @param priv 2153 * Pointer to private structure. 2154 */ 2155 void 2156 priv_flow_delete_drop_queue(struct priv *priv) 2157 { 2158 struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue; 2159 2160 if (!fdq) 2161 return; 2162 if (fdq->qp) 2163 claim_zero(ibv_destroy_qp(fdq->qp)); 2164 if (fdq->ind_table) 2165 claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table)); 2166 if (fdq->wq) 2167 claim_zero(ibv_destroy_wq(fdq->wq)); 2168 if (fdq->cq) 2169 claim_zero(ibv_destroy_cq(fdq->cq)); 2170 rte_free(fdq); 2171 priv->flow_drop_queue = NULL; 2172 } 2173 2174 /** 2175 * Remove all flows. 2176 * 2177 * @param priv 2178 * Pointer to private structure. 2179 * @param list 2180 * Pointer to a TAILQ flow list. 2181 */ 2182 void 2183 priv_flow_stop(struct priv *priv, struct mlx5_flows *list) 2184 { 2185 struct rte_flow *flow; 2186 2187 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) { 2188 unsigned int i; 2189 2190 if (flow->drop) { 2191 if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) 2192 continue; 2193 claim_zero(ibv_destroy_flow 2194 (flow->frxq[HASH_RXQ_ETH].ibv_flow)); 2195 flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL; 2196 /* Next flow. */ 2197 continue; 2198 } 2199 if (flow->mark) { 2200 struct mlx5_ind_table_ibv *ind_tbl = NULL; 2201 2202 for (i = 0; i != hash_rxq_init_n; ++i) { 2203 if (!flow->frxq[i].hrxq) 2204 continue; 2205 ind_tbl = flow->frxq[i].hrxq->ind_table; 2206 } 2207 assert(ind_tbl); 2208 for (i = 0; i != ind_tbl->queues_n; ++i) 2209 (*priv->rxqs)[ind_tbl->queues[i]]->mark = 0; 2210 } 2211 for (i = 0; i != hash_rxq_init_n; ++i) { 2212 if (!flow->frxq[i].ibv_flow) 2213 continue; 2214 claim_zero(ibv_destroy_flow(flow->frxq[i].ibv_flow)); 2215 flow->frxq[i].ibv_flow = NULL; 2216 mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq); 2217 flow->frxq[i].hrxq = NULL; 2218 } 2219 DEBUG("Flow %p removed", (void *)flow); 2220 } 2221 } 2222 2223 /** 2224 * Add all flows. 2225 * 2226 * @param priv 2227 * Pointer to private structure. 2228 * @param list 2229 * Pointer to a TAILQ flow list. 2230 * 2231 * @return 2232 * 0 on success, a errno value otherwise and rte_errno is set. 2233 */ 2234 int 2235 priv_flow_start(struct priv *priv, struct mlx5_flows *list) 2236 { 2237 struct rte_flow *flow; 2238 2239 TAILQ_FOREACH(flow, list, next) { 2240 unsigned int i; 2241 2242 if (flow->drop) { 2243 flow->frxq[HASH_RXQ_ETH].ibv_flow = 2244 ibv_create_flow 2245 (priv->flow_drop_queue->qp, 2246 flow->frxq[HASH_RXQ_ETH].ibv_attr); 2247 if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) { 2248 DEBUG("Flow %p cannot be applied", 2249 (void *)flow); 2250 rte_errno = EINVAL; 2251 return rte_errno; 2252 } 2253 DEBUG("Flow %p applied", (void *)flow); 2254 /* Next flow. */ 2255 continue; 2256 } 2257 for (i = 0; i != hash_rxq_init_n; ++i) { 2258 if (!flow->frxq[i].ibv_attr) 2259 continue; 2260 flow->frxq[i].hrxq = 2261 mlx5_priv_hrxq_get(priv, flow->rss_conf.rss_key, 2262 flow->rss_conf.rss_key_len, 2263 hash_rxq_init[i].hash_fields, 2264 (*flow->queues), 2265 flow->queues_n); 2266 if (flow->frxq[i].hrxq) 2267 goto flow_create; 2268 flow->frxq[i].hrxq = 2269 mlx5_priv_hrxq_new(priv, flow->rss_conf.rss_key, 2270 flow->rss_conf.rss_key_len, 2271 hash_rxq_init[i].hash_fields, 2272 (*flow->queues), 2273 flow->queues_n); 2274 if (!flow->frxq[i].hrxq) { 2275 DEBUG("Flow %p cannot be applied", 2276 (void *)flow); 2277 rte_errno = EINVAL; 2278 return rte_errno; 2279 } 2280 flow_create: 2281 flow->frxq[i].ibv_flow = 2282 ibv_create_flow(flow->frxq[i].hrxq->qp, 2283 flow->frxq[i].ibv_attr); 2284 if (!flow->frxq[i].ibv_flow) { 2285 DEBUG("Flow %p cannot be applied", 2286 (void *)flow); 2287 rte_errno = EINVAL; 2288 return rte_errno; 2289 } 2290 DEBUG("Flow %p applied", (void *)flow); 2291 } 2292 if (!flow->mark) 2293 continue; 2294 for (i = 0; i != flow->queues_n; ++i) 2295 (*priv->rxqs)[(*flow->queues)[i]]->mark = 1; 2296 } 2297 return 0; 2298 } 2299 2300 /** 2301 * Verify the flow list is empty 2302 * 2303 * @param priv 2304 * Pointer to private structure. 2305 * 2306 * @return the number of flows not released. 2307 */ 2308 int 2309 priv_flow_verify(struct priv *priv) 2310 { 2311 struct rte_flow *flow; 2312 int ret = 0; 2313 2314 TAILQ_FOREACH(flow, &priv->flows, next) { 2315 DEBUG("%p: flow %p still referenced", (void *)priv, 2316 (void *)flow); 2317 ++ret; 2318 } 2319 return ret; 2320 } 2321 2322 /** 2323 * Enable a control flow configured from the control plane. 2324 * 2325 * @param dev 2326 * Pointer to Ethernet device. 2327 * @param eth_spec 2328 * An Ethernet flow spec to apply. 2329 * @param eth_mask 2330 * An Ethernet flow mask to apply. 2331 * @param vlan_spec 2332 * A VLAN flow spec to apply. 2333 * @param vlan_mask 2334 * A VLAN flow mask to apply. 2335 * 2336 * @return 2337 * 0 on success. 2338 */ 2339 int 2340 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev, 2341 struct rte_flow_item_eth *eth_spec, 2342 struct rte_flow_item_eth *eth_mask, 2343 struct rte_flow_item_vlan *vlan_spec, 2344 struct rte_flow_item_vlan *vlan_mask) 2345 { 2346 struct priv *priv = dev->data->dev_private; 2347 const struct rte_flow_attr attr = { 2348 .ingress = 1, 2349 .priority = MLX5_CTRL_FLOW_PRIORITY, 2350 }; 2351 struct rte_flow_item items[] = { 2352 { 2353 .type = RTE_FLOW_ITEM_TYPE_ETH, 2354 .spec = eth_spec, 2355 .last = NULL, 2356 .mask = eth_mask, 2357 }, 2358 { 2359 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN : 2360 RTE_FLOW_ITEM_TYPE_END, 2361 .spec = vlan_spec, 2362 .last = NULL, 2363 .mask = vlan_mask, 2364 }, 2365 { 2366 .type = RTE_FLOW_ITEM_TYPE_END, 2367 }, 2368 }; 2369 struct rte_flow_action actions[] = { 2370 { 2371 .type = RTE_FLOW_ACTION_TYPE_RSS, 2372 }, 2373 { 2374 .type = RTE_FLOW_ACTION_TYPE_END, 2375 }, 2376 }; 2377 struct rte_flow *flow; 2378 struct rte_flow_error error; 2379 unsigned int i; 2380 union { 2381 struct rte_flow_action_rss rss; 2382 struct { 2383 const struct rte_eth_rss_conf *rss_conf; 2384 uint16_t num; 2385 uint16_t queue[RTE_MAX_QUEUES_PER_PORT]; 2386 } local; 2387 } action_rss; 2388 2389 if (!priv->reta_idx_n) 2390 return EINVAL; 2391 for (i = 0; i != priv->reta_idx_n; ++i) 2392 action_rss.local.queue[i] = (*priv->reta_idx)[i]; 2393 action_rss.local.rss_conf = &priv->rss_conf; 2394 action_rss.local.num = priv->reta_idx_n; 2395 actions[0].conf = (const void *)&action_rss.rss; 2396 flow = priv_flow_create(priv, &priv->ctrl_flows, &attr, items, actions, 2397 &error); 2398 if (!flow) 2399 return rte_errno; 2400 return 0; 2401 } 2402 2403 /** 2404 * Enable a flow control configured from the control plane. 2405 * 2406 * @param dev 2407 * Pointer to Ethernet device. 2408 * @param eth_spec 2409 * An Ethernet flow spec to apply. 2410 * @param eth_mask 2411 * An Ethernet flow mask to apply. 2412 * 2413 * @return 2414 * 0 on success. 2415 */ 2416 int 2417 mlx5_ctrl_flow(struct rte_eth_dev *dev, 2418 struct rte_flow_item_eth *eth_spec, 2419 struct rte_flow_item_eth *eth_mask) 2420 { 2421 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL); 2422 } 2423 2424 /** 2425 * Destroy a flow. 2426 * 2427 * @see rte_flow_destroy() 2428 * @see rte_flow_ops 2429 */ 2430 int 2431 mlx5_flow_destroy(struct rte_eth_dev *dev, 2432 struct rte_flow *flow, 2433 struct rte_flow_error *error) 2434 { 2435 struct priv *priv = dev->data->dev_private; 2436 2437 (void)error; 2438 priv_lock(priv); 2439 priv_flow_destroy(priv, &priv->flows, flow); 2440 priv_unlock(priv); 2441 return 0; 2442 } 2443 2444 /** 2445 * Destroy all flows. 2446 * 2447 * @see rte_flow_flush() 2448 * @see rte_flow_ops 2449 */ 2450 int 2451 mlx5_flow_flush(struct rte_eth_dev *dev, 2452 struct rte_flow_error *error) 2453 { 2454 struct priv *priv = dev->data->dev_private; 2455 2456 (void)error; 2457 priv_lock(priv); 2458 priv_flow_flush(priv, &priv->flows); 2459 priv_unlock(priv); 2460 return 0; 2461 } 2462 2463 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT 2464 /** 2465 * Query flow counter. 2466 * 2467 * @param cs 2468 * the counter set. 2469 * @param counter_value 2470 * returned data from the counter. 2471 * 2472 * @return 2473 * 0 on success, a errno value otherwise and rte_errno is set. 2474 */ 2475 static int 2476 priv_flow_query_count(struct ibv_counter_set *cs, 2477 struct mlx5_flow_counter_stats *counter_stats, 2478 struct rte_flow_query_count *query_count, 2479 struct rte_flow_error *error) 2480 { 2481 uint64_t counters[2]; 2482 struct ibv_query_counter_set_attr query_cs_attr = { 2483 .cs = cs, 2484 .query_flags = IBV_COUNTER_SET_FORCE_UPDATE, 2485 }; 2486 struct ibv_counter_set_data query_out = { 2487 .out = counters, 2488 .outlen = 2 * sizeof(uint64_t), 2489 }; 2490 int res = ibv_query_counter_set(&query_cs_attr, &query_out); 2491 2492 if (res) { 2493 rte_flow_error_set(error, -res, 2494 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2495 NULL, 2496 "cannot read counter"); 2497 return -res; 2498 } 2499 query_count->hits_set = 1; 2500 query_count->bytes_set = 1; 2501 query_count->hits = counters[0] - counter_stats->hits; 2502 query_count->bytes = counters[1] - counter_stats->bytes; 2503 if (query_count->reset) { 2504 counter_stats->hits = counters[0]; 2505 counter_stats->bytes = counters[1]; 2506 } 2507 return 0; 2508 } 2509 2510 /** 2511 * Query a flows. 2512 * 2513 * @see rte_flow_query() 2514 * @see rte_flow_ops 2515 */ 2516 int 2517 mlx5_flow_query(struct rte_eth_dev *dev, 2518 struct rte_flow *flow, 2519 enum rte_flow_action_type action __rte_unused, 2520 void *data, 2521 struct rte_flow_error *error) 2522 { 2523 struct priv *priv = dev->data->dev_private; 2524 int res = EINVAL; 2525 2526 priv_lock(priv); 2527 if (flow->cs) { 2528 res = priv_flow_query_count(flow->cs, 2529 &flow->counter_stats, 2530 (struct rte_flow_query_count *)data, 2531 error); 2532 } else { 2533 rte_flow_error_set(error, res, 2534 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2535 NULL, 2536 "no counter found for flow"); 2537 } 2538 priv_unlock(priv); 2539 return -res; 2540 } 2541 #endif 2542 2543 /** 2544 * Isolated mode. 2545 * 2546 * @see rte_flow_isolate() 2547 * @see rte_flow_ops 2548 */ 2549 int 2550 mlx5_flow_isolate(struct rte_eth_dev *dev, 2551 int enable, 2552 struct rte_flow_error *error) 2553 { 2554 struct priv *priv = dev->data->dev_private; 2555 2556 priv_lock(priv); 2557 if (dev->data->dev_started) { 2558 rte_flow_error_set(error, EBUSY, 2559 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 2560 NULL, 2561 "port must be stopped first"); 2562 priv_unlock(priv); 2563 return -rte_errno; 2564 } 2565 priv->isolated = !!enable; 2566 if (enable) 2567 priv->dev->dev_ops = &mlx5_dev_ops_isolate; 2568 else 2569 priv->dev->dev_ops = &mlx5_dev_ops; 2570 priv_unlock(priv); 2571 return 0; 2572 } 2573 2574 /** 2575 * Convert a flow director filter to a generic flow. 2576 * 2577 * @param priv 2578 * Private structure. 2579 * @param fdir_filter 2580 * Flow director filter to add. 2581 * @param attributes 2582 * Generic flow parameters structure. 2583 * 2584 * @return 2585 * 0 on success, errno value on error. 2586 */ 2587 static int 2588 priv_fdir_filter_convert(struct priv *priv, 2589 const struct rte_eth_fdir_filter *fdir_filter, 2590 struct mlx5_fdir *attributes) 2591 { 2592 const struct rte_eth_fdir_input *input = &fdir_filter->input; 2593 2594 /* Validate queue number. */ 2595 if (fdir_filter->action.rx_queue >= priv->rxqs_n) { 2596 ERROR("invalid queue number %d", fdir_filter->action.rx_queue); 2597 return EINVAL; 2598 } 2599 attributes->attr.ingress = 1; 2600 attributes->items[0] = (struct rte_flow_item) { 2601 .type = RTE_FLOW_ITEM_TYPE_ETH, 2602 .spec = &attributes->l2, 2603 .mask = &attributes->l2_mask, 2604 }; 2605 switch (fdir_filter->action.behavior) { 2606 case RTE_ETH_FDIR_ACCEPT: 2607 attributes->actions[0] = (struct rte_flow_action){ 2608 .type = RTE_FLOW_ACTION_TYPE_QUEUE, 2609 .conf = &attributes->queue, 2610 }; 2611 break; 2612 case RTE_ETH_FDIR_REJECT: 2613 attributes->actions[0] = (struct rte_flow_action){ 2614 .type = RTE_FLOW_ACTION_TYPE_DROP, 2615 }; 2616 break; 2617 default: 2618 ERROR("invalid behavior %d", fdir_filter->action.behavior); 2619 return ENOTSUP; 2620 } 2621 attributes->queue.index = fdir_filter->action.rx_queue; 2622 switch (fdir_filter->input.flow_type) { 2623 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: 2624 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 2625 .src_addr = input->flow.udp4_flow.ip.src_ip, 2626 .dst_addr = input->flow.udp4_flow.ip.dst_ip, 2627 .time_to_live = input->flow.udp4_flow.ip.ttl, 2628 .type_of_service = input->flow.udp4_flow.ip.tos, 2629 .next_proto_id = input->flow.udp4_flow.ip.proto, 2630 }; 2631 attributes->l4.udp.hdr = (struct udp_hdr){ 2632 .src_port = input->flow.udp4_flow.src_port, 2633 .dst_port = input->flow.udp4_flow.dst_port, 2634 }; 2635 attributes->items[1] = (struct rte_flow_item){ 2636 .type = RTE_FLOW_ITEM_TYPE_IPV4, 2637 .spec = &attributes->l3, 2638 }; 2639 attributes->items[2] = (struct rte_flow_item){ 2640 .type = RTE_FLOW_ITEM_TYPE_UDP, 2641 .spec = &attributes->l4, 2642 }; 2643 break; 2644 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: 2645 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 2646 .src_addr = input->flow.tcp4_flow.ip.src_ip, 2647 .dst_addr = input->flow.tcp4_flow.ip.dst_ip, 2648 .time_to_live = input->flow.tcp4_flow.ip.ttl, 2649 .type_of_service = input->flow.tcp4_flow.ip.tos, 2650 .next_proto_id = input->flow.tcp4_flow.ip.proto, 2651 }; 2652 attributes->l4.tcp.hdr = (struct tcp_hdr){ 2653 .src_port = input->flow.tcp4_flow.src_port, 2654 .dst_port = input->flow.tcp4_flow.dst_port, 2655 }; 2656 attributes->items[1] = (struct rte_flow_item){ 2657 .type = RTE_FLOW_ITEM_TYPE_IPV4, 2658 .spec = &attributes->l3, 2659 }; 2660 attributes->items[2] = (struct rte_flow_item){ 2661 .type = RTE_FLOW_ITEM_TYPE_TCP, 2662 .spec = &attributes->l4, 2663 }; 2664 break; 2665 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: 2666 attributes->l3.ipv4.hdr = (struct ipv4_hdr){ 2667 .src_addr = input->flow.ip4_flow.src_ip, 2668 .dst_addr = input->flow.ip4_flow.dst_ip, 2669 .time_to_live = input->flow.ip4_flow.ttl, 2670 .type_of_service = input->flow.ip4_flow.tos, 2671 .next_proto_id = input->flow.ip4_flow.proto, 2672 }; 2673 attributes->items[1] = (struct rte_flow_item){ 2674 .type = RTE_FLOW_ITEM_TYPE_IPV4, 2675 .spec = &attributes->l3, 2676 }; 2677 break; 2678 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: 2679 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 2680 .hop_limits = input->flow.udp6_flow.ip.hop_limits, 2681 .proto = input->flow.udp6_flow.ip.proto, 2682 }; 2683 memcpy(attributes->l3.ipv6.hdr.src_addr, 2684 input->flow.udp6_flow.ip.src_ip, 2685 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2686 memcpy(attributes->l3.ipv6.hdr.dst_addr, 2687 input->flow.udp6_flow.ip.dst_ip, 2688 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2689 attributes->l4.udp.hdr = (struct udp_hdr){ 2690 .src_port = input->flow.udp6_flow.src_port, 2691 .dst_port = input->flow.udp6_flow.dst_port, 2692 }; 2693 attributes->items[1] = (struct rte_flow_item){ 2694 .type = RTE_FLOW_ITEM_TYPE_IPV6, 2695 .spec = &attributes->l3, 2696 }; 2697 attributes->items[2] = (struct rte_flow_item){ 2698 .type = RTE_FLOW_ITEM_TYPE_UDP, 2699 .spec = &attributes->l4, 2700 }; 2701 break; 2702 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: 2703 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 2704 .hop_limits = input->flow.tcp6_flow.ip.hop_limits, 2705 .proto = input->flow.tcp6_flow.ip.proto, 2706 }; 2707 memcpy(attributes->l3.ipv6.hdr.src_addr, 2708 input->flow.tcp6_flow.ip.src_ip, 2709 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2710 memcpy(attributes->l3.ipv6.hdr.dst_addr, 2711 input->flow.tcp6_flow.ip.dst_ip, 2712 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2713 attributes->l4.tcp.hdr = (struct tcp_hdr){ 2714 .src_port = input->flow.tcp6_flow.src_port, 2715 .dst_port = input->flow.tcp6_flow.dst_port, 2716 }; 2717 attributes->items[1] = (struct rte_flow_item){ 2718 .type = RTE_FLOW_ITEM_TYPE_IPV6, 2719 .spec = &attributes->l3, 2720 }; 2721 attributes->items[2] = (struct rte_flow_item){ 2722 .type = RTE_FLOW_ITEM_TYPE_TCP, 2723 .spec = &attributes->l4, 2724 }; 2725 break; 2726 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: 2727 attributes->l3.ipv6.hdr = (struct ipv6_hdr){ 2728 .hop_limits = input->flow.ipv6_flow.hop_limits, 2729 .proto = input->flow.ipv6_flow.proto, 2730 }; 2731 memcpy(attributes->l3.ipv6.hdr.src_addr, 2732 input->flow.ipv6_flow.src_ip, 2733 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2734 memcpy(attributes->l3.ipv6.hdr.dst_addr, 2735 input->flow.ipv6_flow.dst_ip, 2736 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 2737 attributes->items[1] = (struct rte_flow_item){ 2738 .type = RTE_FLOW_ITEM_TYPE_IPV6, 2739 .spec = &attributes->l3, 2740 }; 2741 break; 2742 default: 2743 ERROR("invalid flow type%d", 2744 fdir_filter->input.flow_type); 2745 return ENOTSUP; 2746 } 2747 return 0; 2748 } 2749 2750 /** 2751 * Add new flow director filter and store it in list. 2752 * 2753 * @param priv 2754 * Private structure. 2755 * @param fdir_filter 2756 * Flow director filter to add. 2757 * 2758 * @return 2759 * 0 on success, errno value on failure. 2760 */ 2761 static int 2762 priv_fdir_filter_add(struct priv *priv, 2763 const struct rte_eth_fdir_filter *fdir_filter) 2764 { 2765 struct mlx5_fdir attributes = { 2766 .attr.group = 0, 2767 .l2_mask = { 2768 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00", 2769 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00", 2770 .type = 0, 2771 }, 2772 }; 2773 struct mlx5_flow_parse parser = { 2774 .layer = HASH_RXQ_ETH, 2775 }; 2776 struct rte_flow_error error; 2777 struct rte_flow *flow; 2778 int ret; 2779 2780 ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes); 2781 if (ret) 2782 return -ret; 2783 ret = priv_flow_convert(priv, &attributes.attr, attributes.items, 2784 attributes.actions, &error, &parser); 2785 if (ret) 2786 return -ret; 2787 flow = priv_flow_create(priv, 2788 &priv->flows, 2789 &attributes.attr, 2790 attributes.items, 2791 attributes.actions, 2792 &error); 2793 if (flow) { 2794 DEBUG("FDIR created %p", (void *)flow); 2795 return 0; 2796 } 2797 return ENOTSUP; 2798 } 2799 2800 /** 2801 * Delete specific filter. 2802 * 2803 * @param priv 2804 * Private structure. 2805 * @param fdir_filter 2806 * Filter to be deleted. 2807 * 2808 * @return 2809 * 0 on success, errno value on failure. 2810 */ 2811 static int 2812 priv_fdir_filter_delete(struct priv *priv, 2813 const struct rte_eth_fdir_filter *fdir_filter) 2814 { 2815 struct mlx5_fdir attributes = { 2816 .attr.group = 0, 2817 }; 2818 struct mlx5_flow_parse parser = { 2819 .create = 1, 2820 .layer = HASH_RXQ_ETH, 2821 }; 2822 struct rte_flow_error error; 2823 struct rte_flow *flow; 2824 unsigned int i; 2825 int ret; 2826 2827 ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes); 2828 if (ret) 2829 return -ret; 2830 ret = priv_flow_convert(priv, &attributes.attr, attributes.items, 2831 attributes.actions, &error, &parser); 2832 if (ret) 2833 goto exit; 2834 /* 2835 * Special case for drop action which is only set in the 2836 * specifications when the flow is created. In this situation the 2837 * drop specification is missing. 2838 */ 2839 if (parser.drop) { 2840 struct ibv_flow_spec_action_drop *drop; 2841 2842 drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr + 2843 parser.queue[HASH_RXQ_ETH].offset); 2844 *drop = (struct ibv_flow_spec_action_drop){ 2845 .type = IBV_FLOW_SPEC_ACTION_DROP, 2846 .size = sizeof(struct ibv_flow_spec_action_drop), 2847 }; 2848 parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++; 2849 } 2850 TAILQ_FOREACH(flow, &priv->flows, next) { 2851 struct ibv_flow_attr *attr; 2852 struct ibv_spec_header *attr_h; 2853 void *spec; 2854 struct ibv_flow_attr *flow_attr; 2855 struct ibv_spec_header *flow_h; 2856 void *flow_spec; 2857 unsigned int specs_n; 2858 2859 attr = parser.queue[HASH_RXQ_ETH].ibv_attr; 2860 flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr; 2861 /* Compare first the attributes. */ 2862 if (memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr))) 2863 continue; 2864 if (attr->num_of_specs == 0) 2865 continue; 2866 spec = (void *)((uintptr_t)attr + 2867 sizeof(struct ibv_flow_attr)); 2868 flow_spec = (void *)((uintptr_t)flow_attr + 2869 sizeof(struct ibv_flow_attr)); 2870 specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs); 2871 for (i = 0; i != specs_n; ++i) { 2872 attr_h = spec; 2873 flow_h = flow_spec; 2874 if (memcmp(spec, flow_spec, 2875 RTE_MIN(attr_h->size, flow_h->size))) 2876 goto wrong_flow; 2877 spec = (void *)((uintptr_t)spec + attr_h->size); 2878 flow_spec = (void *)((uintptr_t)flow_spec + 2879 flow_h->size); 2880 } 2881 /* At this point, the flow match. */ 2882 break; 2883 wrong_flow: 2884 /* The flow does not match. */ 2885 continue; 2886 } 2887 if (flow) 2888 priv_flow_destroy(priv, &priv->flows, flow); 2889 exit: 2890 for (i = 0; i != hash_rxq_init_n; ++i) { 2891 if (parser.queue[i].ibv_attr) 2892 rte_free(parser.queue[i].ibv_attr); 2893 } 2894 return -ret; 2895 } 2896 2897 /** 2898 * Update queue for specific filter. 2899 * 2900 * @param priv 2901 * Private structure. 2902 * @param fdir_filter 2903 * Filter to be updated. 2904 * 2905 * @return 2906 * 0 on success, errno value on failure. 2907 */ 2908 static int 2909 priv_fdir_filter_update(struct priv *priv, 2910 const struct rte_eth_fdir_filter *fdir_filter) 2911 { 2912 int ret; 2913 2914 ret = priv_fdir_filter_delete(priv, fdir_filter); 2915 if (ret) 2916 return ret; 2917 ret = priv_fdir_filter_add(priv, fdir_filter); 2918 return ret; 2919 } 2920 2921 /** 2922 * Flush all filters. 2923 * 2924 * @param priv 2925 * Private structure. 2926 */ 2927 static void 2928 priv_fdir_filter_flush(struct priv *priv) 2929 { 2930 priv_flow_flush(priv, &priv->flows); 2931 } 2932 2933 /** 2934 * Get flow director information. 2935 * 2936 * @param priv 2937 * Private structure. 2938 * @param[out] fdir_info 2939 * Resulting flow director information. 2940 */ 2941 static void 2942 priv_fdir_info_get(struct priv *priv, struct rte_eth_fdir_info *fdir_info) 2943 { 2944 struct rte_eth_fdir_masks *mask = 2945 &priv->dev->data->dev_conf.fdir_conf.mask; 2946 2947 fdir_info->mode = priv->dev->data->dev_conf.fdir_conf.mode; 2948 fdir_info->guarant_spc = 0; 2949 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask)); 2950 fdir_info->max_flexpayload = 0; 2951 fdir_info->flow_types_mask[0] = 0; 2952 fdir_info->flex_payload_unit = 0; 2953 fdir_info->max_flex_payload_segment_num = 0; 2954 fdir_info->flex_payload_limit = 0; 2955 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf)); 2956 } 2957 2958 /** 2959 * Deal with flow director operations. 2960 * 2961 * @param priv 2962 * Pointer to private structure. 2963 * @param filter_op 2964 * Operation to perform. 2965 * @param arg 2966 * Pointer to operation-specific structure. 2967 * 2968 * @return 2969 * 0 on success, errno value on failure. 2970 */ 2971 static int 2972 priv_fdir_ctrl_func(struct priv *priv, enum rte_filter_op filter_op, void *arg) 2973 { 2974 enum rte_fdir_mode fdir_mode = 2975 priv->dev->data->dev_conf.fdir_conf.mode; 2976 int ret = 0; 2977 2978 if (filter_op == RTE_ETH_FILTER_NOP) 2979 return 0; 2980 if (fdir_mode != RTE_FDIR_MODE_PERFECT && 2981 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) { 2982 ERROR("%p: flow director mode %d not supported", 2983 (void *)priv, fdir_mode); 2984 return EINVAL; 2985 } 2986 switch (filter_op) { 2987 case RTE_ETH_FILTER_ADD: 2988 ret = priv_fdir_filter_add(priv, arg); 2989 break; 2990 case RTE_ETH_FILTER_UPDATE: 2991 ret = priv_fdir_filter_update(priv, arg); 2992 break; 2993 case RTE_ETH_FILTER_DELETE: 2994 ret = priv_fdir_filter_delete(priv, arg); 2995 break; 2996 case RTE_ETH_FILTER_FLUSH: 2997 priv_fdir_filter_flush(priv); 2998 break; 2999 case RTE_ETH_FILTER_INFO: 3000 priv_fdir_info_get(priv, arg); 3001 break; 3002 default: 3003 DEBUG("%p: unknown operation %u", (void *)priv, 3004 filter_op); 3005 ret = EINVAL; 3006 break; 3007 } 3008 return ret; 3009 } 3010 3011 /** 3012 * Manage filter operations. 3013 * 3014 * @param dev 3015 * Pointer to Ethernet device structure. 3016 * @param filter_type 3017 * Filter type. 3018 * @param filter_op 3019 * Operation to perform. 3020 * @param arg 3021 * Pointer to operation-specific structure. 3022 * 3023 * @return 3024 * 0 on success, negative errno value on failure. 3025 */ 3026 int 3027 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev, 3028 enum rte_filter_type filter_type, 3029 enum rte_filter_op filter_op, 3030 void *arg) 3031 { 3032 int ret = EINVAL; 3033 struct priv *priv = dev->data->dev_private; 3034 3035 switch (filter_type) { 3036 case RTE_ETH_FILTER_GENERIC: 3037 if (filter_op != RTE_ETH_FILTER_GET) 3038 return -EINVAL; 3039 *(const void **)arg = &mlx5_flow_ops; 3040 return 0; 3041 case RTE_ETH_FILTER_FDIR: 3042 priv_lock(priv); 3043 ret = priv_fdir_ctrl_func(priv, filter_op, arg); 3044 priv_unlock(priv); 3045 break; 3046 default: 3047 ERROR("%p: filter type (%d) not supported", 3048 (void *)dev, filter_type); 3049 break; 3050 } 3051 return -ret; 3052 } 3053