1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2016 6WIND S.A. 3 * Copyright 2016 Mellanox Technologies, Ltd 4 */ 5 6 #include <netinet/in.h> 7 #include <sys/queue.h> 8 #include <stdalign.h> 9 #include <stdint.h> 10 #include <string.h> 11 #include <stdbool.h> 12 13 #include <rte_common.h> 14 #include <rte_ether.h> 15 #include <rte_ethdev_driver.h> 16 #include <rte_eal_paging.h> 17 #include <rte_flow.h> 18 #include <rte_cycles.h> 19 #include <rte_flow_driver.h> 20 #include <rte_malloc.h> 21 #include <rte_ip.h> 22 23 #include <mlx5_glue.h> 24 #include <mlx5_devx_cmds.h> 25 #include <mlx5_prm.h> 26 #include <mlx5_malloc.h> 27 28 #include "mlx5_defs.h" 29 #include "mlx5.h" 30 #include "mlx5_flow.h" 31 #include "mlx5_flow_os.h" 32 #include "mlx5_rxtx.h" 33 #include "mlx5_common_os.h" 34 #include "rte_pmd_mlx5.h" 35 36 static struct mlx5_flow_tunnel * 37 mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id); 38 static void 39 mlx5_flow_tunnel_free(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel); 40 static const struct mlx5_flow_tbl_data_entry * 41 tunnel_mark_decode(struct rte_eth_dev *dev, uint32_t mark); 42 static int 43 mlx5_get_flow_tunnel(struct rte_eth_dev *dev, 44 const struct rte_flow_tunnel *app_tunnel, 45 struct mlx5_flow_tunnel **tunnel); 46 47 48 /** Device flow drivers. */ 49 extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops; 50 51 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops; 52 53 const struct mlx5_flow_driver_ops *flow_drv_ops[] = { 54 [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops, 55 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 56 [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops, 57 #endif 58 [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops, 59 [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops 60 }; 61 62 /** Helper macro to build input graph for mlx5_flow_expand_rss(). */ 63 #define MLX5_FLOW_EXPAND_RSS_NEXT(...) \ 64 (const int []){ \ 65 __VA_ARGS__, 0, \ 66 } 67 68 /** Node object of input graph for mlx5_flow_expand_rss(). */ 69 struct mlx5_flow_expand_node { 70 const int *const next; 71 /**< 72 * List of next node indexes. Index 0 is interpreted as a terminator. 73 */ 74 const enum rte_flow_item_type type; 75 /**< Pattern item type of current node. */ 76 uint64_t rss_types; 77 /**< 78 * RSS types bit-field associated with this node 79 * (see ETH_RSS_* definitions). 80 */ 81 }; 82 83 /** Object returned by mlx5_flow_expand_rss(). */ 84 struct mlx5_flow_expand_rss { 85 uint32_t entries; 86 /**< Number of entries @p patterns and @p priorities. */ 87 struct { 88 struct rte_flow_item *pattern; /**< Expanded pattern array. */ 89 uint32_t priority; /**< Priority offset for each expansion. */ 90 } entry[]; 91 }; 92 93 static enum rte_flow_item_type 94 mlx5_flow_expand_rss_item_complete(const struct rte_flow_item *item) 95 { 96 enum rte_flow_item_type ret = RTE_FLOW_ITEM_TYPE_VOID; 97 uint16_t ether_type = 0; 98 uint16_t ether_type_m; 99 uint8_t ip_next_proto = 0; 100 uint8_t ip_next_proto_m; 101 102 if (item == NULL || item->spec == NULL) 103 return ret; 104 switch (item->type) { 105 case RTE_FLOW_ITEM_TYPE_ETH: 106 if (item->mask) 107 ether_type_m = ((const struct rte_flow_item_eth *) 108 (item->mask))->type; 109 else 110 ether_type_m = rte_flow_item_eth_mask.type; 111 if (ether_type_m != RTE_BE16(0xFFFF)) 112 break; 113 ether_type = ((const struct rte_flow_item_eth *) 114 (item->spec))->type; 115 if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4) 116 ret = RTE_FLOW_ITEM_TYPE_IPV4; 117 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6) 118 ret = RTE_FLOW_ITEM_TYPE_IPV6; 119 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN) 120 ret = RTE_FLOW_ITEM_TYPE_VLAN; 121 else 122 ret = RTE_FLOW_ITEM_TYPE_END; 123 break; 124 case RTE_FLOW_ITEM_TYPE_VLAN: 125 if (item->mask) 126 ether_type_m = ((const struct rte_flow_item_vlan *) 127 (item->mask))->inner_type; 128 else 129 ether_type_m = rte_flow_item_vlan_mask.inner_type; 130 if (ether_type_m != RTE_BE16(0xFFFF)) 131 break; 132 ether_type = ((const struct rte_flow_item_vlan *) 133 (item->spec))->inner_type; 134 if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4) 135 ret = RTE_FLOW_ITEM_TYPE_IPV4; 136 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6) 137 ret = RTE_FLOW_ITEM_TYPE_IPV6; 138 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN) 139 ret = RTE_FLOW_ITEM_TYPE_VLAN; 140 else 141 ret = RTE_FLOW_ITEM_TYPE_END; 142 break; 143 case RTE_FLOW_ITEM_TYPE_IPV4: 144 if (item->mask) 145 ip_next_proto_m = ((const struct rte_flow_item_ipv4 *) 146 (item->mask))->hdr.next_proto_id; 147 else 148 ip_next_proto_m = 149 rte_flow_item_ipv4_mask.hdr.next_proto_id; 150 if (ip_next_proto_m != 0xFF) 151 break; 152 ip_next_proto = ((const struct rte_flow_item_ipv4 *) 153 (item->spec))->hdr.next_proto_id; 154 if (ip_next_proto == IPPROTO_UDP) 155 ret = RTE_FLOW_ITEM_TYPE_UDP; 156 else if (ip_next_proto == IPPROTO_TCP) 157 ret = RTE_FLOW_ITEM_TYPE_TCP; 158 else if (ip_next_proto == IPPROTO_IP) 159 ret = RTE_FLOW_ITEM_TYPE_IPV4; 160 else if (ip_next_proto == IPPROTO_IPV6) 161 ret = RTE_FLOW_ITEM_TYPE_IPV6; 162 else 163 ret = RTE_FLOW_ITEM_TYPE_END; 164 break; 165 case RTE_FLOW_ITEM_TYPE_IPV6: 166 if (item->mask) 167 ip_next_proto_m = ((const struct rte_flow_item_ipv6 *) 168 (item->mask))->hdr.proto; 169 else 170 ip_next_proto_m = 171 rte_flow_item_ipv6_mask.hdr.proto; 172 if (ip_next_proto_m != 0xFF) 173 break; 174 ip_next_proto = ((const struct rte_flow_item_ipv6 *) 175 (item->spec))->hdr.proto; 176 if (ip_next_proto == IPPROTO_UDP) 177 ret = RTE_FLOW_ITEM_TYPE_UDP; 178 else if (ip_next_proto == IPPROTO_TCP) 179 ret = RTE_FLOW_ITEM_TYPE_TCP; 180 else if (ip_next_proto == IPPROTO_IP) 181 ret = RTE_FLOW_ITEM_TYPE_IPV4; 182 else if (ip_next_proto == IPPROTO_IPV6) 183 ret = RTE_FLOW_ITEM_TYPE_IPV6; 184 else 185 ret = RTE_FLOW_ITEM_TYPE_END; 186 break; 187 default: 188 ret = RTE_FLOW_ITEM_TYPE_VOID; 189 break; 190 } 191 return ret; 192 } 193 194 /** 195 * Expand RSS flows into several possible flows according to the RSS hash 196 * fields requested and the driver capabilities. 197 * 198 * @param[out] buf 199 * Buffer to store the result expansion. 200 * @param[in] size 201 * Buffer size in bytes. If 0, @p buf can be NULL. 202 * @param[in] pattern 203 * User flow pattern. 204 * @param[in] types 205 * RSS types to expand (see ETH_RSS_* definitions). 206 * @param[in] graph 207 * Input graph to expand @p pattern according to @p types. 208 * @param[in] graph_root_index 209 * Index of root node in @p graph, typically 0. 210 * 211 * @return 212 * A positive value representing the size of @p buf in bytes regardless of 213 * @p size on success, a negative errno value otherwise and rte_errno is 214 * set, the following errors are defined: 215 * 216 * -E2BIG: graph-depth @p graph is too deep. 217 */ 218 static int 219 mlx5_flow_expand_rss(struct mlx5_flow_expand_rss *buf, size_t size, 220 const struct rte_flow_item *pattern, uint64_t types, 221 const struct mlx5_flow_expand_node graph[], 222 int graph_root_index) 223 { 224 const int elt_n = 8; 225 const struct rte_flow_item *item; 226 const struct mlx5_flow_expand_node *node = &graph[graph_root_index]; 227 const int *next_node; 228 const int *stack[elt_n]; 229 int stack_pos = 0; 230 struct rte_flow_item flow_items[elt_n]; 231 unsigned int i; 232 size_t lsize; 233 size_t user_pattern_size = 0; 234 void *addr = NULL; 235 const struct mlx5_flow_expand_node *next = NULL; 236 struct rte_flow_item missed_item; 237 int missed = 0; 238 int elt = 0; 239 const struct rte_flow_item *last_item = NULL; 240 241 memset(&missed_item, 0, sizeof(missed_item)); 242 lsize = offsetof(struct mlx5_flow_expand_rss, entry) + 243 elt_n * sizeof(buf->entry[0]); 244 if (lsize <= size) { 245 buf->entry[0].priority = 0; 246 buf->entry[0].pattern = (void *)&buf->entry[elt_n]; 247 buf->entries = 0; 248 addr = buf->entry[0].pattern; 249 } 250 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) { 251 if (item->type != RTE_FLOW_ITEM_TYPE_VOID) 252 last_item = item; 253 for (i = 0; node->next && node->next[i]; ++i) { 254 next = &graph[node->next[i]]; 255 if (next->type == item->type) 256 break; 257 } 258 if (next) 259 node = next; 260 user_pattern_size += sizeof(*item); 261 } 262 user_pattern_size += sizeof(*item); /* Handle END item. */ 263 lsize += user_pattern_size; 264 /* Copy the user pattern in the first entry of the buffer. */ 265 if (lsize <= size) { 266 rte_memcpy(addr, pattern, user_pattern_size); 267 addr = (void *)(((uintptr_t)addr) + user_pattern_size); 268 buf->entries = 1; 269 } 270 /* Start expanding. */ 271 memset(flow_items, 0, sizeof(flow_items)); 272 user_pattern_size -= sizeof(*item); 273 /* 274 * Check if the last valid item has spec set, need complete pattern, 275 * and the pattern can be used for expansion. 276 */ 277 missed_item.type = mlx5_flow_expand_rss_item_complete(last_item); 278 if (missed_item.type == RTE_FLOW_ITEM_TYPE_END) { 279 /* Item type END indicates expansion is not required. */ 280 return lsize; 281 } 282 if (missed_item.type != RTE_FLOW_ITEM_TYPE_VOID) { 283 next = NULL; 284 missed = 1; 285 for (i = 0; node->next && node->next[i]; ++i) { 286 next = &graph[node->next[i]]; 287 if (next->type == missed_item.type) { 288 flow_items[0].type = missed_item.type; 289 flow_items[1].type = RTE_FLOW_ITEM_TYPE_END; 290 break; 291 } 292 next = NULL; 293 } 294 } 295 if (next && missed) { 296 elt = 2; /* missed item + item end. */ 297 node = next; 298 lsize += elt * sizeof(*item) + user_pattern_size; 299 if ((node->rss_types & types) && lsize <= size) { 300 buf->entry[buf->entries].priority = 1; 301 buf->entry[buf->entries].pattern = addr; 302 buf->entries++; 303 rte_memcpy(addr, buf->entry[0].pattern, 304 user_pattern_size); 305 addr = (void *)(((uintptr_t)addr) + user_pattern_size); 306 rte_memcpy(addr, flow_items, elt * sizeof(*item)); 307 addr = (void *)(((uintptr_t)addr) + 308 elt * sizeof(*item)); 309 } 310 } 311 memset(flow_items, 0, sizeof(flow_items)); 312 next_node = node->next; 313 stack[stack_pos] = next_node; 314 node = next_node ? &graph[*next_node] : NULL; 315 while (node) { 316 flow_items[stack_pos].type = node->type; 317 if (node->rss_types & types) { 318 /* 319 * compute the number of items to copy from the 320 * expansion and copy it. 321 * When the stack_pos is 0, there are 1 element in it, 322 * plus the addition END item. 323 */ 324 elt = stack_pos + 2; 325 flow_items[stack_pos + 1].type = RTE_FLOW_ITEM_TYPE_END; 326 lsize += elt * sizeof(*item) + user_pattern_size; 327 if (lsize <= size) { 328 size_t n = elt * sizeof(*item); 329 330 buf->entry[buf->entries].priority = 331 stack_pos + 1 + missed; 332 buf->entry[buf->entries].pattern = addr; 333 buf->entries++; 334 rte_memcpy(addr, buf->entry[0].pattern, 335 user_pattern_size); 336 addr = (void *)(((uintptr_t)addr) + 337 user_pattern_size); 338 rte_memcpy(addr, &missed_item, 339 missed * sizeof(*item)); 340 addr = (void *)(((uintptr_t)addr) + 341 missed * sizeof(*item)); 342 rte_memcpy(addr, flow_items, n); 343 addr = (void *)(((uintptr_t)addr) + n); 344 } 345 } 346 /* Go deeper. */ 347 if (node->next) { 348 next_node = node->next; 349 if (stack_pos++ == elt_n) { 350 rte_errno = E2BIG; 351 return -rte_errno; 352 } 353 stack[stack_pos] = next_node; 354 } else if (*(next_node + 1)) { 355 /* Follow up with the next possibility. */ 356 ++next_node; 357 } else { 358 /* Move to the next path. */ 359 if (stack_pos) 360 next_node = stack[--stack_pos]; 361 next_node++; 362 stack[stack_pos] = next_node; 363 } 364 node = *next_node ? &graph[*next_node] : NULL; 365 }; 366 /* no expanded flows but we have missed item, create one rule for it */ 367 if (buf->entries == 1 && missed != 0) { 368 elt = 2; 369 lsize += elt * sizeof(*item) + user_pattern_size; 370 if (lsize <= size) { 371 buf->entry[buf->entries].priority = 1; 372 buf->entry[buf->entries].pattern = addr; 373 buf->entries++; 374 flow_items[0].type = missed_item.type; 375 flow_items[1].type = RTE_FLOW_ITEM_TYPE_END; 376 rte_memcpy(addr, buf->entry[0].pattern, 377 user_pattern_size); 378 addr = (void *)(((uintptr_t)addr) + user_pattern_size); 379 rte_memcpy(addr, flow_items, elt * sizeof(*item)); 380 addr = (void *)(((uintptr_t)addr) + 381 elt * sizeof(*item)); 382 } 383 } 384 return lsize; 385 } 386 387 enum mlx5_expansion { 388 MLX5_EXPANSION_ROOT, 389 MLX5_EXPANSION_ROOT_OUTER, 390 MLX5_EXPANSION_ROOT_ETH_VLAN, 391 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN, 392 MLX5_EXPANSION_OUTER_ETH, 393 MLX5_EXPANSION_OUTER_ETH_VLAN, 394 MLX5_EXPANSION_OUTER_VLAN, 395 MLX5_EXPANSION_OUTER_IPV4, 396 MLX5_EXPANSION_OUTER_IPV4_UDP, 397 MLX5_EXPANSION_OUTER_IPV4_TCP, 398 MLX5_EXPANSION_OUTER_IPV6, 399 MLX5_EXPANSION_OUTER_IPV6_UDP, 400 MLX5_EXPANSION_OUTER_IPV6_TCP, 401 MLX5_EXPANSION_VXLAN, 402 MLX5_EXPANSION_VXLAN_GPE, 403 MLX5_EXPANSION_GRE, 404 MLX5_EXPANSION_MPLS, 405 MLX5_EXPANSION_ETH, 406 MLX5_EXPANSION_ETH_VLAN, 407 MLX5_EXPANSION_VLAN, 408 MLX5_EXPANSION_IPV4, 409 MLX5_EXPANSION_IPV4_UDP, 410 MLX5_EXPANSION_IPV4_TCP, 411 MLX5_EXPANSION_IPV6, 412 MLX5_EXPANSION_IPV6_UDP, 413 MLX5_EXPANSION_IPV6_TCP, 414 }; 415 416 /** Supported expansion of items. */ 417 static const struct mlx5_flow_expand_node mlx5_support_expansion[] = { 418 [MLX5_EXPANSION_ROOT] = { 419 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH, 420 MLX5_EXPANSION_IPV4, 421 MLX5_EXPANSION_IPV6), 422 .type = RTE_FLOW_ITEM_TYPE_END, 423 }, 424 [MLX5_EXPANSION_ROOT_OUTER] = { 425 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH, 426 MLX5_EXPANSION_OUTER_IPV4, 427 MLX5_EXPANSION_OUTER_IPV6), 428 .type = RTE_FLOW_ITEM_TYPE_END, 429 }, 430 [MLX5_EXPANSION_ROOT_ETH_VLAN] = { 431 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN), 432 .type = RTE_FLOW_ITEM_TYPE_END, 433 }, 434 [MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = { 435 .next = MLX5_FLOW_EXPAND_RSS_NEXT 436 (MLX5_EXPANSION_OUTER_ETH_VLAN), 437 .type = RTE_FLOW_ITEM_TYPE_END, 438 }, 439 [MLX5_EXPANSION_OUTER_ETH] = { 440 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4, 441 MLX5_EXPANSION_OUTER_IPV6, 442 MLX5_EXPANSION_MPLS), 443 .type = RTE_FLOW_ITEM_TYPE_ETH, 444 .rss_types = 0, 445 }, 446 [MLX5_EXPANSION_OUTER_ETH_VLAN] = { 447 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN), 448 .type = RTE_FLOW_ITEM_TYPE_ETH, 449 .rss_types = 0, 450 }, 451 [MLX5_EXPANSION_OUTER_VLAN] = { 452 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4, 453 MLX5_EXPANSION_OUTER_IPV6), 454 .type = RTE_FLOW_ITEM_TYPE_VLAN, 455 }, 456 [MLX5_EXPANSION_OUTER_IPV4] = { 457 .next = MLX5_FLOW_EXPAND_RSS_NEXT 458 (MLX5_EXPANSION_OUTER_IPV4_UDP, 459 MLX5_EXPANSION_OUTER_IPV4_TCP, 460 MLX5_EXPANSION_GRE, 461 MLX5_EXPANSION_IPV4, 462 MLX5_EXPANSION_IPV6), 463 .type = RTE_FLOW_ITEM_TYPE_IPV4, 464 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | 465 ETH_RSS_NONFRAG_IPV4_OTHER, 466 }, 467 [MLX5_EXPANSION_OUTER_IPV4_UDP] = { 468 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN, 469 MLX5_EXPANSION_VXLAN_GPE), 470 .type = RTE_FLOW_ITEM_TYPE_UDP, 471 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP, 472 }, 473 [MLX5_EXPANSION_OUTER_IPV4_TCP] = { 474 .type = RTE_FLOW_ITEM_TYPE_TCP, 475 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP, 476 }, 477 [MLX5_EXPANSION_OUTER_IPV6] = { 478 .next = MLX5_FLOW_EXPAND_RSS_NEXT 479 (MLX5_EXPANSION_OUTER_IPV6_UDP, 480 MLX5_EXPANSION_OUTER_IPV6_TCP, 481 MLX5_EXPANSION_IPV4, 482 MLX5_EXPANSION_IPV6), 483 .type = RTE_FLOW_ITEM_TYPE_IPV6, 484 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | 485 ETH_RSS_NONFRAG_IPV6_OTHER, 486 }, 487 [MLX5_EXPANSION_OUTER_IPV6_UDP] = { 488 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN, 489 MLX5_EXPANSION_VXLAN_GPE), 490 .type = RTE_FLOW_ITEM_TYPE_UDP, 491 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP, 492 }, 493 [MLX5_EXPANSION_OUTER_IPV6_TCP] = { 494 .type = RTE_FLOW_ITEM_TYPE_TCP, 495 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP, 496 }, 497 [MLX5_EXPANSION_VXLAN] = { 498 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH, 499 MLX5_EXPANSION_IPV4, 500 MLX5_EXPANSION_IPV6), 501 .type = RTE_FLOW_ITEM_TYPE_VXLAN, 502 }, 503 [MLX5_EXPANSION_VXLAN_GPE] = { 504 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH, 505 MLX5_EXPANSION_IPV4, 506 MLX5_EXPANSION_IPV6), 507 .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE, 508 }, 509 [MLX5_EXPANSION_GRE] = { 510 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4), 511 .type = RTE_FLOW_ITEM_TYPE_GRE, 512 }, 513 [MLX5_EXPANSION_MPLS] = { 514 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4, 515 MLX5_EXPANSION_IPV6), 516 .type = RTE_FLOW_ITEM_TYPE_MPLS, 517 }, 518 [MLX5_EXPANSION_ETH] = { 519 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4, 520 MLX5_EXPANSION_IPV6), 521 .type = RTE_FLOW_ITEM_TYPE_ETH, 522 }, 523 [MLX5_EXPANSION_ETH_VLAN] = { 524 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN), 525 .type = RTE_FLOW_ITEM_TYPE_ETH, 526 }, 527 [MLX5_EXPANSION_VLAN] = { 528 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4, 529 MLX5_EXPANSION_IPV6), 530 .type = RTE_FLOW_ITEM_TYPE_VLAN, 531 }, 532 [MLX5_EXPANSION_IPV4] = { 533 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP, 534 MLX5_EXPANSION_IPV4_TCP), 535 .type = RTE_FLOW_ITEM_TYPE_IPV4, 536 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | 537 ETH_RSS_NONFRAG_IPV4_OTHER, 538 }, 539 [MLX5_EXPANSION_IPV4_UDP] = { 540 .type = RTE_FLOW_ITEM_TYPE_UDP, 541 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP, 542 }, 543 [MLX5_EXPANSION_IPV4_TCP] = { 544 .type = RTE_FLOW_ITEM_TYPE_TCP, 545 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP, 546 }, 547 [MLX5_EXPANSION_IPV6] = { 548 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP, 549 MLX5_EXPANSION_IPV6_TCP), 550 .type = RTE_FLOW_ITEM_TYPE_IPV6, 551 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | 552 ETH_RSS_NONFRAG_IPV6_OTHER, 553 }, 554 [MLX5_EXPANSION_IPV6_UDP] = { 555 .type = RTE_FLOW_ITEM_TYPE_UDP, 556 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP, 557 }, 558 [MLX5_EXPANSION_IPV6_TCP] = { 559 .type = RTE_FLOW_ITEM_TYPE_TCP, 560 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP, 561 }, 562 }; 563 564 static struct rte_flow_shared_action * 565 mlx5_shared_action_create(struct rte_eth_dev *dev, 566 const struct rte_flow_shared_action_conf *conf, 567 const struct rte_flow_action *action, 568 struct rte_flow_error *error); 569 static int mlx5_shared_action_destroy 570 (struct rte_eth_dev *dev, 571 struct rte_flow_shared_action *shared_action, 572 struct rte_flow_error *error); 573 static int mlx5_shared_action_update 574 (struct rte_eth_dev *dev, 575 struct rte_flow_shared_action *shared_action, 576 const struct rte_flow_action *action, 577 struct rte_flow_error *error); 578 static int mlx5_shared_action_query 579 (struct rte_eth_dev *dev, 580 const struct rte_flow_shared_action *action, 581 void *data, 582 struct rte_flow_error *error); 583 static inline bool 584 mlx5_flow_tunnel_validate(struct rte_eth_dev *dev, 585 struct rte_flow_tunnel *tunnel, 586 const char *err_msg) 587 { 588 err_msg = NULL; 589 if (!is_tunnel_offload_active(dev)) { 590 err_msg = "tunnel offload was not activated"; 591 goto out; 592 } else if (!tunnel) { 593 err_msg = "no application tunnel"; 594 goto out; 595 } 596 597 switch (tunnel->type) { 598 default: 599 err_msg = "unsupported tunnel type"; 600 goto out; 601 case RTE_FLOW_ITEM_TYPE_VXLAN: 602 break; 603 } 604 605 out: 606 return !err_msg; 607 } 608 609 610 static int 611 mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev, 612 struct rte_flow_tunnel *app_tunnel, 613 struct rte_flow_action **actions, 614 uint32_t *num_of_actions, 615 struct rte_flow_error *error) 616 { 617 int ret; 618 struct mlx5_flow_tunnel *tunnel; 619 const char *err_msg = NULL; 620 bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg); 621 622 if (!verdict) 623 return rte_flow_error_set(error, EINVAL, 624 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, 625 err_msg); 626 ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel); 627 if (ret < 0) { 628 return rte_flow_error_set(error, ret, 629 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, 630 "failed to initialize pmd tunnel"); 631 } 632 *actions = &tunnel->action; 633 *num_of_actions = 1; 634 return 0; 635 } 636 637 static int 638 mlx5_flow_tunnel_match(struct rte_eth_dev *dev, 639 struct rte_flow_tunnel *app_tunnel, 640 struct rte_flow_item **items, 641 uint32_t *num_of_items, 642 struct rte_flow_error *error) 643 { 644 int ret; 645 struct mlx5_flow_tunnel *tunnel; 646 const char *err_msg = NULL; 647 bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg); 648 649 if (!verdict) 650 return rte_flow_error_set(error, EINVAL, 651 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 652 err_msg); 653 ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel); 654 if (ret < 0) { 655 return rte_flow_error_set(error, ret, 656 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 657 "failed to initialize pmd tunnel"); 658 } 659 *items = &tunnel->item; 660 *num_of_items = 1; 661 return 0; 662 } 663 664 static int 665 mlx5_flow_item_release(struct rte_eth_dev *dev, 666 struct rte_flow_item *pmd_items, 667 uint32_t num_items, struct rte_flow_error *err) 668 { 669 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); 670 struct mlx5_flow_tunnel *tun; 671 672 LIST_FOREACH(tun, &thub->tunnels, chain) { 673 if (&tun->item == pmd_items) 674 break; 675 } 676 if (!tun || num_items != 1) 677 return rte_flow_error_set(err, EINVAL, 678 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 679 "invalid argument"); 680 if (!__atomic_sub_fetch(&tun->refctn, 1, __ATOMIC_RELAXED)) 681 mlx5_flow_tunnel_free(dev, tun); 682 return 0; 683 } 684 685 static int 686 mlx5_flow_action_release(struct rte_eth_dev *dev, 687 struct rte_flow_action *pmd_actions, 688 uint32_t num_actions, struct rte_flow_error *err) 689 { 690 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); 691 struct mlx5_flow_tunnel *tun; 692 693 LIST_FOREACH(tun, &thub->tunnels, chain) { 694 if (&tun->action == pmd_actions) 695 break; 696 } 697 if (!tun || num_actions != 1) 698 return rte_flow_error_set(err, EINVAL, 699 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 700 "invalid argument"); 701 if (!__atomic_sub_fetch(&tun->refctn, 1, __ATOMIC_RELAXED)) 702 mlx5_flow_tunnel_free(dev, tun); 703 704 return 0; 705 } 706 707 static int 708 mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev, 709 struct rte_mbuf *m, 710 struct rte_flow_restore_info *info, 711 struct rte_flow_error *err) 712 { 713 uint64_t ol_flags = m->ol_flags; 714 const struct mlx5_flow_tbl_data_entry *tble; 715 const uint64_t mask = PKT_RX_FDIR | PKT_RX_FDIR_ID; 716 717 if ((ol_flags & mask) != mask) 718 goto err; 719 tble = tunnel_mark_decode(dev, m->hash.fdir.hi); 720 if (!tble) { 721 DRV_LOG(DEBUG, "port %u invalid miss tunnel mark %#x", 722 dev->data->port_id, m->hash.fdir.hi); 723 goto err; 724 } 725 MLX5_ASSERT(tble->tunnel); 726 memcpy(&info->tunnel, &tble->tunnel->app_tunnel, sizeof(info->tunnel)); 727 info->group_id = tble->group_id; 728 info->flags = RTE_FLOW_RESTORE_INFO_TUNNEL | 729 RTE_FLOW_RESTORE_INFO_GROUP_ID | 730 RTE_FLOW_RESTORE_INFO_ENCAPSULATED; 731 732 return 0; 733 734 err: 735 return rte_flow_error_set(err, EINVAL, 736 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, 737 "failed to get restore info"); 738 } 739 740 static const struct rte_flow_ops mlx5_flow_ops = { 741 .validate = mlx5_flow_validate, 742 .create = mlx5_flow_create, 743 .destroy = mlx5_flow_destroy, 744 .flush = mlx5_flow_flush, 745 .isolate = mlx5_flow_isolate, 746 .query = mlx5_flow_query, 747 .dev_dump = mlx5_flow_dev_dump, 748 .get_aged_flows = mlx5_flow_get_aged_flows, 749 .shared_action_create = mlx5_shared_action_create, 750 .shared_action_destroy = mlx5_shared_action_destroy, 751 .shared_action_update = mlx5_shared_action_update, 752 .shared_action_query = mlx5_shared_action_query, 753 .tunnel_decap_set = mlx5_flow_tunnel_decap_set, 754 .tunnel_match = mlx5_flow_tunnel_match, 755 .tunnel_action_decap_release = mlx5_flow_action_release, 756 .tunnel_item_release = mlx5_flow_item_release, 757 .get_restore_info = mlx5_flow_tunnel_get_restore_info, 758 }; 759 760 /* Convert FDIR request to Generic flow. */ 761 struct mlx5_fdir { 762 struct rte_flow_attr attr; 763 struct rte_flow_item items[4]; 764 struct rte_flow_item_eth l2; 765 struct rte_flow_item_eth l2_mask; 766 union { 767 struct rte_flow_item_ipv4 ipv4; 768 struct rte_flow_item_ipv6 ipv6; 769 } l3; 770 union { 771 struct rte_flow_item_ipv4 ipv4; 772 struct rte_flow_item_ipv6 ipv6; 773 } l3_mask; 774 union { 775 struct rte_flow_item_udp udp; 776 struct rte_flow_item_tcp tcp; 777 } l4; 778 union { 779 struct rte_flow_item_udp udp; 780 struct rte_flow_item_tcp tcp; 781 } l4_mask; 782 struct rte_flow_action actions[2]; 783 struct rte_flow_action_queue queue; 784 }; 785 786 /* Tunnel information. */ 787 struct mlx5_flow_tunnel_info { 788 uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */ 789 uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */ 790 }; 791 792 static struct mlx5_flow_tunnel_info tunnels_info[] = { 793 { 794 .tunnel = MLX5_FLOW_LAYER_VXLAN, 795 .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP, 796 }, 797 { 798 .tunnel = MLX5_FLOW_LAYER_GENEVE, 799 .ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP, 800 }, 801 { 802 .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE, 803 .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP, 804 }, 805 { 806 .tunnel = MLX5_FLOW_LAYER_GRE, 807 .ptype = RTE_PTYPE_TUNNEL_GRE, 808 }, 809 { 810 .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP, 811 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP, 812 }, 813 { 814 .tunnel = MLX5_FLOW_LAYER_MPLS, 815 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE, 816 }, 817 { 818 .tunnel = MLX5_FLOW_LAYER_NVGRE, 819 .ptype = RTE_PTYPE_TUNNEL_NVGRE, 820 }, 821 { 822 .tunnel = MLX5_FLOW_LAYER_IPIP, 823 .ptype = RTE_PTYPE_TUNNEL_IP, 824 }, 825 { 826 .tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP, 827 .ptype = RTE_PTYPE_TUNNEL_IP, 828 }, 829 { 830 .tunnel = MLX5_FLOW_LAYER_GTP, 831 .ptype = RTE_PTYPE_TUNNEL_GTPU, 832 }, 833 }; 834 835 /* Key of thread specific flow workspace data. */ 836 static pthread_key_t key_workspace; 837 838 /* Thread specific flow workspace data once initialization data. */ 839 static pthread_once_t key_workspace_init; 840 841 842 /** 843 * Translate tag ID to register. 844 * 845 * @param[in] dev 846 * Pointer to the Ethernet device structure. 847 * @param[in] feature 848 * The feature that request the register. 849 * @param[in] id 850 * The request register ID. 851 * @param[out] error 852 * Error description in case of any. 853 * 854 * @return 855 * The request register on success, a negative errno 856 * value otherwise and rte_errno is set. 857 */ 858 int 859 mlx5_flow_get_reg_id(struct rte_eth_dev *dev, 860 enum mlx5_feature_name feature, 861 uint32_t id, 862 struct rte_flow_error *error) 863 { 864 struct mlx5_priv *priv = dev->data->dev_private; 865 struct mlx5_dev_config *config = &priv->config; 866 enum modify_reg start_reg; 867 bool skip_mtr_reg = false; 868 869 switch (feature) { 870 case MLX5_HAIRPIN_RX: 871 return REG_B; 872 case MLX5_HAIRPIN_TX: 873 return REG_A; 874 case MLX5_METADATA_RX: 875 switch (config->dv_xmeta_en) { 876 case MLX5_XMETA_MODE_LEGACY: 877 return REG_B; 878 case MLX5_XMETA_MODE_META16: 879 return REG_C_0; 880 case MLX5_XMETA_MODE_META32: 881 return REG_C_1; 882 } 883 break; 884 case MLX5_METADATA_TX: 885 return REG_A; 886 case MLX5_METADATA_FDB: 887 switch (config->dv_xmeta_en) { 888 case MLX5_XMETA_MODE_LEGACY: 889 return REG_NON; 890 case MLX5_XMETA_MODE_META16: 891 return REG_C_0; 892 case MLX5_XMETA_MODE_META32: 893 return REG_C_1; 894 } 895 break; 896 case MLX5_FLOW_MARK: 897 switch (config->dv_xmeta_en) { 898 case MLX5_XMETA_MODE_LEGACY: 899 return REG_NON; 900 case MLX5_XMETA_MODE_META16: 901 return REG_C_1; 902 case MLX5_XMETA_MODE_META32: 903 return REG_C_0; 904 } 905 break; 906 case MLX5_MTR_SFX: 907 /* 908 * If meter color and flow match share one register, flow match 909 * should use the meter color register for match. 910 */ 911 if (priv->mtr_reg_share) 912 return priv->mtr_color_reg; 913 else 914 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : 915 REG_C_3; 916 case MLX5_MTR_COLOR: 917 MLX5_ASSERT(priv->mtr_color_reg != REG_NON); 918 return priv->mtr_color_reg; 919 case MLX5_COPY_MARK: 920 /* 921 * Metadata COPY_MARK register using is in meter suffix sub 922 * flow while with meter. It's safe to share the same register. 923 */ 924 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3; 925 case MLX5_APP_TAG: 926 /* 927 * If meter is enable, it will engage the register for color 928 * match and flow match. If meter color match is not using the 929 * REG_C_2, need to skip the REG_C_x be used by meter color 930 * match. 931 * If meter is disable, free to use all available registers. 932 */ 933 start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_2 : 934 (priv->mtr_reg_share ? REG_C_3 : REG_C_4); 935 skip_mtr_reg = !!(priv->mtr_en && start_reg == REG_C_2); 936 if (id > (REG_C_7 - start_reg)) 937 return rte_flow_error_set(error, EINVAL, 938 RTE_FLOW_ERROR_TYPE_ITEM, 939 NULL, "invalid tag id"); 940 if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NON) 941 return rte_flow_error_set(error, ENOTSUP, 942 RTE_FLOW_ERROR_TYPE_ITEM, 943 NULL, "unsupported tag id"); 944 /* 945 * This case means meter is using the REG_C_x great than 2. 946 * Take care not to conflict with meter color REG_C_x. 947 * If the available index REG_C_y >= REG_C_x, skip the 948 * color register. 949 */ 950 if (skip_mtr_reg && config->flow_mreg_c 951 [id + start_reg - REG_C_0] >= priv->mtr_color_reg) { 952 if (id >= (REG_C_7 - start_reg)) 953 return rte_flow_error_set(error, EINVAL, 954 RTE_FLOW_ERROR_TYPE_ITEM, 955 NULL, "invalid tag id"); 956 if (config->flow_mreg_c 957 [id + 1 + start_reg - REG_C_0] != REG_NON) 958 return config->flow_mreg_c 959 [id + 1 + start_reg - REG_C_0]; 960 return rte_flow_error_set(error, ENOTSUP, 961 RTE_FLOW_ERROR_TYPE_ITEM, 962 NULL, "unsupported tag id"); 963 } 964 return config->flow_mreg_c[id + start_reg - REG_C_0]; 965 } 966 MLX5_ASSERT(false); 967 return rte_flow_error_set(error, EINVAL, 968 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 969 NULL, "invalid feature name"); 970 } 971 972 /** 973 * Check extensive flow metadata register support. 974 * 975 * @param dev 976 * Pointer to rte_eth_dev structure. 977 * 978 * @return 979 * True if device supports extensive flow metadata register, otherwise false. 980 */ 981 bool 982 mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev) 983 { 984 struct mlx5_priv *priv = dev->data->dev_private; 985 struct mlx5_dev_config *config = &priv->config; 986 987 /* 988 * Having available reg_c can be regarded inclusively as supporting 989 * extensive flow metadata register, which could mean, 990 * - metadata register copy action by modify header. 991 * - 16 modify header actions is supported. 992 * - reg_c's are preserved across different domain (FDB and NIC) on 993 * packet loopback by flow lookup miss. 994 */ 995 return config->flow_mreg_c[2] != REG_NON; 996 } 997 998 /** 999 * Verify the @p item specifications (spec, last, mask) are compatible with the 1000 * NIC capabilities. 1001 * 1002 * @param[in] item 1003 * Item specification. 1004 * @param[in] mask 1005 * @p item->mask or flow default bit-masks. 1006 * @param[in] nic_mask 1007 * Bit-masks covering supported fields by the NIC to compare with user mask. 1008 * @param[in] size 1009 * Bit-masks size in bytes. 1010 * @param[in] range_accepted 1011 * True if range of values is accepted for specific fields, false otherwise. 1012 * @param[out] error 1013 * Pointer to error structure. 1014 * 1015 * @return 1016 * 0 on success, a negative errno value otherwise and rte_errno is set. 1017 */ 1018 int 1019 mlx5_flow_item_acceptable(const struct rte_flow_item *item, 1020 const uint8_t *mask, 1021 const uint8_t *nic_mask, 1022 unsigned int size, 1023 bool range_accepted, 1024 struct rte_flow_error *error) 1025 { 1026 unsigned int i; 1027 1028 MLX5_ASSERT(nic_mask); 1029 for (i = 0; i < size; ++i) 1030 if ((nic_mask[i] | mask[i]) != nic_mask[i]) 1031 return rte_flow_error_set(error, ENOTSUP, 1032 RTE_FLOW_ERROR_TYPE_ITEM, 1033 item, 1034 "mask enables non supported" 1035 " bits"); 1036 if (!item->spec && (item->mask || item->last)) 1037 return rte_flow_error_set(error, EINVAL, 1038 RTE_FLOW_ERROR_TYPE_ITEM, item, 1039 "mask/last without a spec is not" 1040 " supported"); 1041 if (item->spec && item->last && !range_accepted) { 1042 uint8_t spec[size]; 1043 uint8_t last[size]; 1044 unsigned int i; 1045 int ret; 1046 1047 for (i = 0; i < size; ++i) { 1048 spec[i] = ((const uint8_t *)item->spec)[i] & mask[i]; 1049 last[i] = ((const uint8_t *)item->last)[i] & mask[i]; 1050 } 1051 ret = memcmp(spec, last, size); 1052 if (ret != 0) 1053 return rte_flow_error_set(error, EINVAL, 1054 RTE_FLOW_ERROR_TYPE_ITEM, 1055 item, 1056 "range is not valid"); 1057 } 1058 return 0; 1059 } 1060 1061 /** 1062 * Adjust the hash fields according to the @p flow information. 1063 * 1064 * @param[in] dev_flow. 1065 * Pointer to the mlx5_flow. 1066 * @param[in] tunnel 1067 * 1 when the hash field is for a tunnel item. 1068 * @param[in] layer_types 1069 * ETH_RSS_* types. 1070 * @param[in] hash_fields 1071 * Item hash fields. 1072 * 1073 * @return 1074 * The hash fields that should be used. 1075 */ 1076 uint64_t 1077 mlx5_flow_hashfields_adjust(struct mlx5_flow_rss_desc *rss_desc, 1078 int tunnel __rte_unused, uint64_t layer_types, 1079 uint64_t hash_fields) 1080 { 1081 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 1082 int rss_request_inner = rss_desc->level >= 2; 1083 1084 /* Check RSS hash level for tunnel. */ 1085 if (tunnel && rss_request_inner) 1086 hash_fields |= IBV_RX_HASH_INNER; 1087 else if (tunnel || rss_request_inner) 1088 return 0; 1089 #endif 1090 /* Check if requested layer matches RSS hash fields. */ 1091 if (!(rss_desc->types & layer_types)) 1092 return 0; 1093 return hash_fields; 1094 } 1095 1096 /** 1097 * Lookup and set the ptype in the data Rx part. A single Ptype can be used, 1098 * if several tunnel rules are used on this queue, the tunnel ptype will be 1099 * cleared. 1100 * 1101 * @param rxq_ctrl 1102 * Rx queue to update. 1103 */ 1104 static void 1105 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl) 1106 { 1107 unsigned int i; 1108 uint32_t tunnel_ptype = 0; 1109 1110 /* Look up for the ptype to use. */ 1111 for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) { 1112 if (!rxq_ctrl->flow_tunnels_n[i]) 1113 continue; 1114 if (!tunnel_ptype) { 1115 tunnel_ptype = tunnels_info[i].ptype; 1116 } else { 1117 tunnel_ptype = 0; 1118 break; 1119 } 1120 } 1121 rxq_ctrl->rxq.tunnel = tunnel_ptype; 1122 } 1123 1124 /** 1125 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive 1126 * flow. 1127 * 1128 * @param[in] dev 1129 * Pointer to the Ethernet device structure. 1130 * @param[in] dev_handle 1131 * Pointer to device flow handle structure. 1132 */ 1133 static void 1134 flow_drv_rxq_flags_set(struct rte_eth_dev *dev, 1135 struct mlx5_flow_handle *dev_handle) 1136 { 1137 struct mlx5_priv *priv = dev->data->dev_private; 1138 const int mark = dev_handle->mark; 1139 const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL); 1140 struct mlx5_hrxq *hrxq; 1141 unsigned int i; 1142 1143 if (dev_handle->fate_action != MLX5_FLOW_FATE_QUEUE) 1144 return; 1145 hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], 1146 dev_handle->rix_hrxq); 1147 if (!hrxq) 1148 return; 1149 for (i = 0; i != hrxq->ind_table->queues_n; ++i) { 1150 int idx = hrxq->ind_table->queues[i]; 1151 struct mlx5_rxq_ctrl *rxq_ctrl = 1152 container_of((*priv->rxqs)[idx], 1153 struct mlx5_rxq_ctrl, rxq); 1154 1155 /* 1156 * To support metadata register copy on Tx loopback, 1157 * this must be always enabled (metadata may arive 1158 * from other port - not from local flows only. 1159 */ 1160 if (priv->config.dv_flow_en && 1161 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 1162 mlx5_flow_ext_mreg_supported(dev)) { 1163 rxq_ctrl->rxq.mark = 1; 1164 rxq_ctrl->flow_mark_n = 1; 1165 } else if (mark) { 1166 rxq_ctrl->rxq.mark = 1; 1167 rxq_ctrl->flow_mark_n++; 1168 } 1169 if (tunnel) { 1170 unsigned int j; 1171 1172 /* Increase the counter matching the flow. */ 1173 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) { 1174 if ((tunnels_info[j].tunnel & 1175 dev_handle->layers) == 1176 tunnels_info[j].tunnel) { 1177 rxq_ctrl->flow_tunnels_n[j]++; 1178 break; 1179 } 1180 } 1181 flow_rxq_tunnel_ptype_update(rxq_ctrl); 1182 } 1183 } 1184 } 1185 1186 /** 1187 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow 1188 * 1189 * @param[in] dev 1190 * Pointer to the Ethernet device structure. 1191 * @param[in] flow 1192 * Pointer to flow structure. 1193 */ 1194 static void 1195 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow) 1196 { 1197 struct mlx5_priv *priv = dev->data->dev_private; 1198 uint32_t handle_idx; 1199 struct mlx5_flow_handle *dev_handle; 1200 1201 SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles, 1202 handle_idx, dev_handle, next) 1203 flow_drv_rxq_flags_set(dev, dev_handle); 1204 } 1205 1206 /** 1207 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the 1208 * device flow if no other flow uses it with the same kind of request. 1209 * 1210 * @param dev 1211 * Pointer to Ethernet device. 1212 * @param[in] dev_handle 1213 * Pointer to the device flow handle structure. 1214 */ 1215 static void 1216 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, 1217 struct mlx5_flow_handle *dev_handle) 1218 { 1219 struct mlx5_priv *priv = dev->data->dev_private; 1220 const int mark = dev_handle->mark; 1221 const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL); 1222 struct mlx5_hrxq *hrxq; 1223 unsigned int i; 1224 1225 if (dev_handle->fate_action != MLX5_FLOW_FATE_QUEUE) 1226 return; 1227 hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], 1228 dev_handle->rix_hrxq); 1229 if (!hrxq) 1230 return; 1231 MLX5_ASSERT(dev->data->dev_started); 1232 for (i = 0; i != hrxq->ind_table->queues_n; ++i) { 1233 int idx = hrxq->ind_table->queues[i]; 1234 struct mlx5_rxq_ctrl *rxq_ctrl = 1235 container_of((*priv->rxqs)[idx], 1236 struct mlx5_rxq_ctrl, rxq); 1237 1238 if (priv->config.dv_flow_en && 1239 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 1240 mlx5_flow_ext_mreg_supported(dev)) { 1241 rxq_ctrl->rxq.mark = 1; 1242 rxq_ctrl->flow_mark_n = 1; 1243 } else if (mark) { 1244 rxq_ctrl->flow_mark_n--; 1245 rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n; 1246 } 1247 if (tunnel) { 1248 unsigned int j; 1249 1250 /* Decrease the counter matching the flow. */ 1251 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) { 1252 if ((tunnels_info[j].tunnel & 1253 dev_handle->layers) == 1254 tunnels_info[j].tunnel) { 1255 rxq_ctrl->flow_tunnels_n[j]--; 1256 break; 1257 } 1258 } 1259 flow_rxq_tunnel_ptype_update(rxq_ctrl); 1260 } 1261 } 1262 } 1263 1264 /** 1265 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the 1266 * @p flow if no other flow uses it with the same kind of request. 1267 * 1268 * @param dev 1269 * Pointer to Ethernet device. 1270 * @param[in] flow 1271 * Pointer to the flow. 1272 */ 1273 static void 1274 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow) 1275 { 1276 struct mlx5_priv *priv = dev->data->dev_private; 1277 uint32_t handle_idx; 1278 struct mlx5_flow_handle *dev_handle; 1279 1280 SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles, 1281 handle_idx, dev_handle, next) 1282 flow_drv_rxq_flags_trim(dev, dev_handle); 1283 } 1284 1285 /** 1286 * Clear the Mark/Flag and Tunnel ptype information in all Rx queues. 1287 * 1288 * @param dev 1289 * Pointer to Ethernet device. 1290 */ 1291 static void 1292 flow_rxq_flags_clear(struct rte_eth_dev *dev) 1293 { 1294 struct mlx5_priv *priv = dev->data->dev_private; 1295 unsigned int i; 1296 1297 for (i = 0; i != priv->rxqs_n; ++i) { 1298 struct mlx5_rxq_ctrl *rxq_ctrl; 1299 unsigned int j; 1300 1301 if (!(*priv->rxqs)[i]) 1302 continue; 1303 rxq_ctrl = container_of((*priv->rxqs)[i], 1304 struct mlx5_rxq_ctrl, rxq); 1305 rxq_ctrl->flow_mark_n = 0; 1306 rxq_ctrl->rxq.mark = 0; 1307 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) 1308 rxq_ctrl->flow_tunnels_n[j] = 0; 1309 rxq_ctrl->rxq.tunnel = 0; 1310 } 1311 } 1312 1313 /** 1314 * Set the Rx queue dynamic metadata (mask and offset) for a flow 1315 * 1316 * @param[in] dev 1317 * Pointer to the Ethernet device structure. 1318 */ 1319 void 1320 mlx5_flow_rxq_dynf_metadata_set(struct rte_eth_dev *dev) 1321 { 1322 struct mlx5_priv *priv = dev->data->dev_private; 1323 struct mlx5_rxq_data *data; 1324 unsigned int i; 1325 1326 for (i = 0; i != priv->rxqs_n; ++i) { 1327 if (!(*priv->rxqs)[i]) 1328 continue; 1329 data = (*priv->rxqs)[i]; 1330 if (!rte_flow_dynf_metadata_avail()) { 1331 data->dynf_meta = 0; 1332 data->flow_meta_mask = 0; 1333 data->flow_meta_offset = -1; 1334 } else { 1335 data->dynf_meta = 1; 1336 data->flow_meta_mask = rte_flow_dynf_metadata_mask; 1337 data->flow_meta_offset = rte_flow_dynf_metadata_offs; 1338 } 1339 } 1340 } 1341 1342 /* 1343 * return a pointer to the desired action in the list of actions. 1344 * 1345 * @param[in] actions 1346 * The list of actions to search the action in. 1347 * @param[in] action 1348 * The action to find. 1349 * 1350 * @return 1351 * Pointer to the action in the list, if found. NULL otherwise. 1352 */ 1353 const struct rte_flow_action * 1354 mlx5_flow_find_action(const struct rte_flow_action *actions, 1355 enum rte_flow_action_type action) 1356 { 1357 if (actions == NULL) 1358 return NULL; 1359 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) 1360 if (actions->type == action) 1361 return actions; 1362 return NULL; 1363 } 1364 1365 /* 1366 * Validate the flag action. 1367 * 1368 * @param[in] action_flags 1369 * Bit-fields that holds the actions detected until now. 1370 * @param[in] attr 1371 * Attributes of flow that includes this action. 1372 * @param[out] error 1373 * Pointer to error structure. 1374 * 1375 * @return 1376 * 0 on success, a negative errno value otherwise and rte_errno is set. 1377 */ 1378 int 1379 mlx5_flow_validate_action_flag(uint64_t action_flags, 1380 const struct rte_flow_attr *attr, 1381 struct rte_flow_error *error) 1382 { 1383 if (action_flags & MLX5_FLOW_ACTION_MARK) 1384 return rte_flow_error_set(error, EINVAL, 1385 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1386 "can't mark and flag in same flow"); 1387 if (action_flags & MLX5_FLOW_ACTION_FLAG) 1388 return rte_flow_error_set(error, EINVAL, 1389 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1390 "can't have 2 flag" 1391 " actions in same flow"); 1392 if (attr->egress) 1393 return rte_flow_error_set(error, ENOTSUP, 1394 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1395 "flag action not supported for " 1396 "egress"); 1397 return 0; 1398 } 1399 1400 /* 1401 * Validate the mark action. 1402 * 1403 * @param[in] action 1404 * Pointer to the queue action. 1405 * @param[in] action_flags 1406 * Bit-fields that holds the actions detected until now. 1407 * @param[in] attr 1408 * Attributes of flow that includes this action. 1409 * @param[out] error 1410 * Pointer to error structure. 1411 * 1412 * @return 1413 * 0 on success, a negative errno value otherwise and rte_errno is set. 1414 */ 1415 int 1416 mlx5_flow_validate_action_mark(const struct rte_flow_action *action, 1417 uint64_t action_flags, 1418 const struct rte_flow_attr *attr, 1419 struct rte_flow_error *error) 1420 { 1421 const struct rte_flow_action_mark *mark = action->conf; 1422 1423 if (!mark) 1424 return rte_flow_error_set(error, EINVAL, 1425 RTE_FLOW_ERROR_TYPE_ACTION, 1426 action, 1427 "configuration cannot be null"); 1428 if (mark->id >= MLX5_FLOW_MARK_MAX) 1429 return rte_flow_error_set(error, EINVAL, 1430 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1431 &mark->id, 1432 "mark id must in 0 <= id < " 1433 RTE_STR(MLX5_FLOW_MARK_MAX)); 1434 if (action_flags & MLX5_FLOW_ACTION_FLAG) 1435 return rte_flow_error_set(error, EINVAL, 1436 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1437 "can't flag and mark in same flow"); 1438 if (action_flags & MLX5_FLOW_ACTION_MARK) 1439 return rte_flow_error_set(error, EINVAL, 1440 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1441 "can't have 2 mark actions in same" 1442 " flow"); 1443 if (attr->egress) 1444 return rte_flow_error_set(error, ENOTSUP, 1445 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1446 "mark action not supported for " 1447 "egress"); 1448 return 0; 1449 } 1450 1451 /* 1452 * Validate the drop action. 1453 * 1454 * @param[in] action_flags 1455 * Bit-fields that holds the actions detected until now. 1456 * @param[in] attr 1457 * Attributes of flow that includes this action. 1458 * @param[out] error 1459 * Pointer to error structure. 1460 * 1461 * @return 1462 * 0 on success, a negative errno value otherwise and rte_errno is set. 1463 */ 1464 int 1465 mlx5_flow_validate_action_drop(uint64_t action_flags __rte_unused, 1466 const struct rte_flow_attr *attr, 1467 struct rte_flow_error *error) 1468 { 1469 if (attr->egress) 1470 return rte_flow_error_set(error, ENOTSUP, 1471 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1472 "drop action not supported for " 1473 "egress"); 1474 return 0; 1475 } 1476 1477 /* 1478 * Validate the queue action. 1479 * 1480 * @param[in] action 1481 * Pointer to the queue action. 1482 * @param[in] action_flags 1483 * Bit-fields that holds the actions detected until now. 1484 * @param[in] dev 1485 * Pointer to the Ethernet device structure. 1486 * @param[in] attr 1487 * Attributes of flow that includes this action. 1488 * @param[out] error 1489 * Pointer to error structure. 1490 * 1491 * @return 1492 * 0 on success, a negative errno value otherwise and rte_errno is set. 1493 */ 1494 int 1495 mlx5_flow_validate_action_queue(const struct rte_flow_action *action, 1496 uint64_t action_flags, 1497 struct rte_eth_dev *dev, 1498 const struct rte_flow_attr *attr, 1499 struct rte_flow_error *error) 1500 { 1501 struct mlx5_priv *priv = dev->data->dev_private; 1502 const struct rte_flow_action_queue *queue = action->conf; 1503 1504 if (action_flags & MLX5_FLOW_FATE_ACTIONS) 1505 return rte_flow_error_set(error, EINVAL, 1506 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1507 "can't have 2 fate actions in" 1508 " same flow"); 1509 if (!priv->rxqs_n) 1510 return rte_flow_error_set(error, EINVAL, 1511 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1512 NULL, "No Rx queues configured"); 1513 if (queue->index >= priv->rxqs_n) 1514 return rte_flow_error_set(error, EINVAL, 1515 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1516 &queue->index, 1517 "queue index out of range"); 1518 if (!(*priv->rxqs)[queue->index]) 1519 return rte_flow_error_set(error, EINVAL, 1520 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1521 &queue->index, 1522 "queue is not configured"); 1523 if (attr->egress) 1524 return rte_flow_error_set(error, ENOTSUP, 1525 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1526 "queue action not supported for " 1527 "egress"); 1528 return 0; 1529 } 1530 1531 /* 1532 * Validate the rss action. 1533 * 1534 * @param[in] dev 1535 * Pointer to the Ethernet device structure. 1536 * @param[in] action 1537 * Pointer to the queue action. 1538 * @param[out] error 1539 * Pointer to error structure. 1540 * 1541 * @return 1542 * 0 on success, a negative errno value otherwise and rte_errno is set. 1543 */ 1544 int 1545 mlx5_validate_action_rss(struct rte_eth_dev *dev, 1546 const struct rte_flow_action *action, 1547 struct rte_flow_error *error) 1548 { 1549 struct mlx5_priv *priv = dev->data->dev_private; 1550 const struct rte_flow_action_rss *rss = action->conf; 1551 unsigned int i; 1552 1553 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT && 1554 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) 1555 return rte_flow_error_set(error, ENOTSUP, 1556 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1557 &rss->func, 1558 "RSS hash function not supported"); 1559 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 1560 if (rss->level > 2) 1561 #else 1562 if (rss->level > 1) 1563 #endif 1564 return rte_flow_error_set(error, ENOTSUP, 1565 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1566 &rss->level, 1567 "tunnel RSS is not supported"); 1568 /* allow RSS key_len 0 in case of NULL (default) RSS key. */ 1569 if (rss->key_len == 0 && rss->key != NULL) 1570 return rte_flow_error_set(error, ENOTSUP, 1571 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1572 &rss->key_len, 1573 "RSS hash key length 0"); 1574 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN) 1575 return rte_flow_error_set(error, ENOTSUP, 1576 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1577 &rss->key_len, 1578 "RSS hash key too small"); 1579 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN) 1580 return rte_flow_error_set(error, ENOTSUP, 1581 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1582 &rss->key_len, 1583 "RSS hash key too large"); 1584 if (rss->queue_num > priv->config.ind_table_max_size) 1585 return rte_flow_error_set(error, ENOTSUP, 1586 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1587 &rss->queue_num, 1588 "number of queues too large"); 1589 if (rss->types & MLX5_RSS_HF_MASK) 1590 return rte_flow_error_set(error, ENOTSUP, 1591 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1592 &rss->types, 1593 "some RSS protocols are not" 1594 " supported"); 1595 if ((rss->types & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY)) && 1596 !(rss->types & ETH_RSS_IP)) 1597 return rte_flow_error_set(error, EINVAL, 1598 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, 1599 "L3 partial RSS requested but L3 RSS" 1600 " type not specified"); 1601 if ((rss->types & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY)) && 1602 !(rss->types & (ETH_RSS_UDP | ETH_RSS_TCP))) 1603 return rte_flow_error_set(error, EINVAL, 1604 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, 1605 "L4 partial RSS requested but L4 RSS" 1606 " type not specified"); 1607 if (!priv->rxqs_n) 1608 return rte_flow_error_set(error, EINVAL, 1609 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1610 NULL, "No Rx queues configured"); 1611 if (!rss->queue_num) 1612 return rte_flow_error_set(error, EINVAL, 1613 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1614 NULL, "No queues configured"); 1615 for (i = 0; i != rss->queue_num; ++i) { 1616 if (rss->queue[i] >= priv->rxqs_n) 1617 return rte_flow_error_set 1618 (error, EINVAL, 1619 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1620 &rss->queue[i], "queue index out of range"); 1621 if (!(*priv->rxqs)[rss->queue[i]]) 1622 return rte_flow_error_set 1623 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, 1624 &rss->queue[i], "queue is not configured"); 1625 } 1626 return 0; 1627 } 1628 1629 /* 1630 * Validate the rss action. 1631 * 1632 * @param[in] action 1633 * Pointer to the queue action. 1634 * @param[in] action_flags 1635 * Bit-fields that holds the actions detected until now. 1636 * @param[in] dev 1637 * Pointer to the Ethernet device structure. 1638 * @param[in] attr 1639 * Attributes of flow that includes this action. 1640 * @param[in] item_flags 1641 * Items that were detected. 1642 * @param[out] error 1643 * Pointer to error structure. 1644 * 1645 * @return 1646 * 0 on success, a negative errno value otherwise and rte_errno is set. 1647 */ 1648 int 1649 mlx5_flow_validate_action_rss(const struct rte_flow_action *action, 1650 uint64_t action_flags, 1651 struct rte_eth_dev *dev, 1652 const struct rte_flow_attr *attr, 1653 uint64_t item_flags, 1654 struct rte_flow_error *error) 1655 { 1656 const struct rte_flow_action_rss *rss = action->conf; 1657 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 1658 int ret; 1659 1660 if (action_flags & MLX5_FLOW_FATE_ACTIONS) 1661 return rte_flow_error_set(error, EINVAL, 1662 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1663 "can't have 2 fate actions" 1664 " in same flow"); 1665 ret = mlx5_validate_action_rss(dev, action, error); 1666 if (ret) 1667 return ret; 1668 if (attr->egress) 1669 return rte_flow_error_set(error, ENOTSUP, 1670 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1671 "rss action not supported for " 1672 "egress"); 1673 if (rss->level > 1 && !tunnel) 1674 return rte_flow_error_set(error, EINVAL, 1675 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, 1676 "inner RSS is not supported for " 1677 "non-tunnel flows"); 1678 if ((item_flags & MLX5_FLOW_LAYER_ECPRI) && 1679 !(item_flags & MLX5_FLOW_LAYER_INNER_L4_UDP)) { 1680 return rte_flow_error_set(error, EINVAL, 1681 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, 1682 "RSS on eCPRI is not supported now"); 1683 } 1684 return 0; 1685 } 1686 1687 /* 1688 * Validate the default miss action. 1689 * 1690 * @param[in] action_flags 1691 * Bit-fields that holds the actions detected until now. 1692 * @param[out] error 1693 * Pointer to error structure. 1694 * 1695 * @return 1696 * 0 on success, a negative errno value otherwise and rte_errno is set. 1697 */ 1698 int 1699 mlx5_flow_validate_action_default_miss(uint64_t action_flags, 1700 const struct rte_flow_attr *attr, 1701 struct rte_flow_error *error) 1702 { 1703 if (action_flags & MLX5_FLOW_FATE_ACTIONS) 1704 return rte_flow_error_set(error, EINVAL, 1705 RTE_FLOW_ERROR_TYPE_ACTION, NULL, 1706 "can't have 2 fate actions in" 1707 " same flow"); 1708 if (attr->egress) 1709 return rte_flow_error_set(error, ENOTSUP, 1710 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1711 "default miss action not supported " 1712 "for egress"); 1713 if (attr->group) 1714 return rte_flow_error_set(error, ENOTSUP, 1715 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL, 1716 "only group 0 is supported"); 1717 if (attr->transfer) 1718 return rte_flow_error_set(error, ENOTSUP, 1719 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, 1720 NULL, "transfer is not supported"); 1721 return 0; 1722 } 1723 1724 /* 1725 * Validate the count action. 1726 * 1727 * @param[in] dev 1728 * Pointer to the Ethernet device structure. 1729 * @param[in] attr 1730 * Attributes of flow that includes this action. 1731 * @param[out] error 1732 * Pointer to error structure. 1733 * 1734 * @return 1735 * 0 on success, a negative errno value otherwise and rte_errno is set. 1736 */ 1737 int 1738 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused, 1739 const struct rte_flow_attr *attr, 1740 struct rte_flow_error *error) 1741 { 1742 if (attr->egress) 1743 return rte_flow_error_set(error, ENOTSUP, 1744 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1745 "count action not supported for " 1746 "egress"); 1747 return 0; 1748 } 1749 1750 /** 1751 * Verify the @p attributes will be correctly understood by the NIC and store 1752 * them in the @p flow if everything is correct. 1753 * 1754 * @param[in] dev 1755 * Pointer to the Ethernet device structure. 1756 * @param[in] attributes 1757 * Pointer to flow attributes 1758 * @param[out] error 1759 * Pointer to error structure. 1760 * 1761 * @return 1762 * 0 on success, a negative errno value otherwise and rte_errno is set. 1763 */ 1764 int 1765 mlx5_flow_validate_attributes(struct rte_eth_dev *dev, 1766 const struct rte_flow_attr *attributes, 1767 struct rte_flow_error *error) 1768 { 1769 struct mlx5_priv *priv = dev->data->dev_private; 1770 uint32_t priority_max = priv->config.flow_prio - 1; 1771 1772 if (attributes->group) 1773 return rte_flow_error_set(error, ENOTSUP, 1774 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, 1775 NULL, "groups is not supported"); 1776 if (attributes->priority != MLX5_FLOW_PRIO_RSVD && 1777 attributes->priority >= priority_max) 1778 return rte_flow_error_set(error, ENOTSUP, 1779 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, 1780 NULL, "priority out of range"); 1781 if (attributes->egress) 1782 return rte_flow_error_set(error, ENOTSUP, 1783 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, 1784 "egress is not supported"); 1785 if (attributes->transfer && !priv->config.dv_esw_en) 1786 return rte_flow_error_set(error, ENOTSUP, 1787 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, 1788 NULL, "transfer is not supported"); 1789 if (!attributes->ingress) 1790 return rte_flow_error_set(error, EINVAL, 1791 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, 1792 NULL, 1793 "ingress attribute is mandatory"); 1794 return 0; 1795 } 1796 1797 /** 1798 * Validate ICMP6 item. 1799 * 1800 * @param[in] item 1801 * Item specification. 1802 * @param[in] item_flags 1803 * Bit-fields that holds the items detected until now. 1804 * @param[in] ext_vlan_sup 1805 * Whether extended VLAN features are supported or not. 1806 * @param[out] error 1807 * Pointer to error structure. 1808 * 1809 * @return 1810 * 0 on success, a negative errno value otherwise and rte_errno is set. 1811 */ 1812 int 1813 mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item, 1814 uint64_t item_flags, 1815 uint8_t target_protocol, 1816 struct rte_flow_error *error) 1817 { 1818 const struct rte_flow_item_icmp6 *mask = item->mask; 1819 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 1820 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 : 1821 MLX5_FLOW_LAYER_OUTER_L3_IPV6; 1822 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : 1823 MLX5_FLOW_LAYER_OUTER_L4; 1824 int ret; 1825 1826 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6) 1827 return rte_flow_error_set(error, EINVAL, 1828 RTE_FLOW_ERROR_TYPE_ITEM, item, 1829 "protocol filtering not compatible" 1830 " with ICMP6 layer"); 1831 if (!(item_flags & l3m)) 1832 return rte_flow_error_set(error, EINVAL, 1833 RTE_FLOW_ERROR_TYPE_ITEM, item, 1834 "IPv6 is mandatory to filter on" 1835 " ICMP6"); 1836 if (item_flags & l4m) 1837 return rte_flow_error_set(error, EINVAL, 1838 RTE_FLOW_ERROR_TYPE_ITEM, item, 1839 "multiple L4 layers not supported"); 1840 if (!mask) 1841 mask = &rte_flow_item_icmp6_mask; 1842 ret = mlx5_flow_item_acceptable 1843 (item, (const uint8_t *)mask, 1844 (const uint8_t *)&rte_flow_item_icmp6_mask, 1845 sizeof(struct rte_flow_item_icmp6), 1846 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 1847 if (ret < 0) 1848 return ret; 1849 return 0; 1850 } 1851 1852 /** 1853 * Validate ICMP item. 1854 * 1855 * @param[in] item 1856 * Item specification. 1857 * @param[in] item_flags 1858 * Bit-fields that holds the items detected until now. 1859 * @param[out] error 1860 * Pointer to error structure. 1861 * 1862 * @return 1863 * 0 on success, a negative errno value otherwise and rte_errno is set. 1864 */ 1865 int 1866 mlx5_flow_validate_item_icmp(const struct rte_flow_item *item, 1867 uint64_t item_flags, 1868 uint8_t target_protocol, 1869 struct rte_flow_error *error) 1870 { 1871 const struct rte_flow_item_icmp *mask = item->mask; 1872 const struct rte_flow_item_icmp nic_mask = { 1873 .hdr.icmp_type = 0xff, 1874 .hdr.icmp_code = 0xff, 1875 .hdr.icmp_ident = RTE_BE16(0xffff), 1876 .hdr.icmp_seq_nb = RTE_BE16(0xffff), 1877 }; 1878 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 1879 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 : 1880 MLX5_FLOW_LAYER_OUTER_L3_IPV4; 1881 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : 1882 MLX5_FLOW_LAYER_OUTER_L4; 1883 int ret; 1884 1885 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP) 1886 return rte_flow_error_set(error, EINVAL, 1887 RTE_FLOW_ERROR_TYPE_ITEM, item, 1888 "protocol filtering not compatible" 1889 " with ICMP layer"); 1890 if (!(item_flags & l3m)) 1891 return rte_flow_error_set(error, EINVAL, 1892 RTE_FLOW_ERROR_TYPE_ITEM, item, 1893 "IPv4 is mandatory to filter" 1894 " on ICMP"); 1895 if (item_flags & l4m) 1896 return rte_flow_error_set(error, EINVAL, 1897 RTE_FLOW_ERROR_TYPE_ITEM, item, 1898 "multiple L4 layers not supported"); 1899 if (!mask) 1900 mask = &nic_mask; 1901 ret = mlx5_flow_item_acceptable 1902 (item, (const uint8_t *)mask, 1903 (const uint8_t *)&nic_mask, 1904 sizeof(struct rte_flow_item_icmp), 1905 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 1906 if (ret < 0) 1907 return ret; 1908 return 0; 1909 } 1910 1911 /** 1912 * Validate Ethernet item. 1913 * 1914 * @param[in] item 1915 * Item specification. 1916 * @param[in] item_flags 1917 * Bit-fields that holds the items detected until now. 1918 * @param[out] error 1919 * Pointer to error structure. 1920 * 1921 * @return 1922 * 0 on success, a negative errno value otherwise and rte_errno is set. 1923 */ 1924 int 1925 mlx5_flow_validate_item_eth(const struct rte_flow_item *item, 1926 uint64_t item_flags, bool ext_vlan_sup, 1927 struct rte_flow_error *error) 1928 { 1929 const struct rte_flow_item_eth *mask = item->mask; 1930 const struct rte_flow_item_eth nic_mask = { 1931 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", 1932 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff", 1933 .type = RTE_BE16(0xffff), 1934 .has_vlan = ext_vlan_sup ? 1 : 0, 1935 }; 1936 int ret; 1937 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 1938 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 : 1939 MLX5_FLOW_LAYER_OUTER_L2; 1940 1941 if (item_flags & ethm) 1942 return rte_flow_error_set(error, ENOTSUP, 1943 RTE_FLOW_ERROR_TYPE_ITEM, item, 1944 "multiple L2 layers not supported"); 1945 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) || 1946 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3))) 1947 return rte_flow_error_set(error, EINVAL, 1948 RTE_FLOW_ERROR_TYPE_ITEM, item, 1949 "L2 layer should not follow " 1950 "L3 layers"); 1951 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) || 1952 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN))) 1953 return rte_flow_error_set(error, EINVAL, 1954 RTE_FLOW_ERROR_TYPE_ITEM, item, 1955 "L2 layer should not follow VLAN"); 1956 if (!mask) 1957 mask = &rte_flow_item_eth_mask; 1958 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, 1959 (const uint8_t *)&nic_mask, 1960 sizeof(struct rte_flow_item_eth), 1961 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 1962 return ret; 1963 } 1964 1965 /** 1966 * Validate VLAN item. 1967 * 1968 * @param[in] item 1969 * Item specification. 1970 * @param[in] item_flags 1971 * Bit-fields that holds the items detected until now. 1972 * @param[in] dev 1973 * Ethernet device flow is being created on. 1974 * @param[out] error 1975 * Pointer to error structure. 1976 * 1977 * @return 1978 * 0 on success, a negative errno value otherwise and rte_errno is set. 1979 */ 1980 int 1981 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item, 1982 uint64_t item_flags, 1983 struct rte_eth_dev *dev, 1984 struct rte_flow_error *error) 1985 { 1986 const struct rte_flow_item_vlan *spec = item->spec; 1987 const struct rte_flow_item_vlan *mask = item->mask; 1988 const struct rte_flow_item_vlan nic_mask = { 1989 .tci = RTE_BE16(UINT16_MAX), 1990 .inner_type = RTE_BE16(UINT16_MAX), 1991 }; 1992 uint16_t vlan_tag = 0; 1993 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 1994 int ret; 1995 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 | 1996 MLX5_FLOW_LAYER_INNER_L4) : 1997 (MLX5_FLOW_LAYER_OUTER_L3 | 1998 MLX5_FLOW_LAYER_OUTER_L4); 1999 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN : 2000 MLX5_FLOW_LAYER_OUTER_VLAN; 2001 2002 if (item_flags & vlanm) 2003 return rte_flow_error_set(error, EINVAL, 2004 RTE_FLOW_ERROR_TYPE_ITEM, item, 2005 "multiple VLAN layers not supported"); 2006 else if ((item_flags & l34m) != 0) 2007 return rte_flow_error_set(error, EINVAL, 2008 RTE_FLOW_ERROR_TYPE_ITEM, item, 2009 "VLAN cannot follow L3/L4 layer"); 2010 if (!mask) 2011 mask = &rte_flow_item_vlan_mask; 2012 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, 2013 (const uint8_t *)&nic_mask, 2014 sizeof(struct rte_flow_item_vlan), 2015 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2016 if (ret) 2017 return ret; 2018 if (!tunnel && mask->tci != RTE_BE16(0x0fff)) { 2019 struct mlx5_priv *priv = dev->data->dev_private; 2020 2021 if (priv->vmwa_context) { 2022 /* 2023 * Non-NULL context means we have a virtual machine 2024 * and SR-IOV enabled, we have to create VLAN interface 2025 * to make hypervisor to setup E-Switch vport 2026 * context correctly. We avoid creating the multiple 2027 * VLAN interfaces, so we cannot support VLAN tag mask. 2028 */ 2029 return rte_flow_error_set(error, EINVAL, 2030 RTE_FLOW_ERROR_TYPE_ITEM, 2031 item, 2032 "VLAN tag mask is not" 2033 " supported in virtual" 2034 " environment"); 2035 } 2036 } 2037 if (spec) { 2038 vlan_tag = spec->tci; 2039 vlan_tag &= mask->tci; 2040 } 2041 /* 2042 * From verbs perspective an empty VLAN is equivalent 2043 * to a packet without VLAN layer. 2044 */ 2045 if (!vlan_tag) 2046 return rte_flow_error_set(error, EINVAL, 2047 RTE_FLOW_ERROR_TYPE_ITEM_SPEC, 2048 item->spec, 2049 "VLAN cannot be empty"); 2050 return 0; 2051 } 2052 2053 /** 2054 * Validate IPV4 item. 2055 * 2056 * @param[in] item 2057 * Item specification. 2058 * @param[in] item_flags 2059 * Bit-fields that holds the items detected until now. 2060 * @param[in] last_item 2061 * Previous validated item in the pattern items. 2062 * @param[in] ether_type 2063 * Type in the ethernet layer header (including dot1q). 2064 * @param[in] acc_mask 2065 * Acceptable mask, if NULL default internal default mask 2066 * will be used to check whether item fields are supported. 2067 * @param[in] range_accepted 2068 * True if range of values is accepted for specific fields, false otherwise. 2069 * @param[out] error 2070 * Pointer to error structure. 2071 * 2072 * @return 2073 * 0 on success, a negative errno value otherwise and rte_errno is set. 2074 */ 2075 int 2076 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item, 2077 uint64_t item_flags, 2078 uint64_t last_item, 2079 uint16_t ether_type, 2080 const struct rte_flow_item_ipv4 *acc_mask, 2081 bool range_accepted, 2082 struct rte_flow_error *error) 2083 { 2084 const struct rte_flow_item_ipv4 *mask = item->mask; 2085 const struct rte_flow_item_ipv4 *spec = item->spec; 2086 const struct rte_flow_item_ipv4 nic_mask = { 2087 .hdr = { 2088 .src_addr = RTE_BE32(0xffffffff), 2089 .dst_addr = RTE_BE32(0xffffffff), 2090 .type_of_service = 0xff, 2091 .next_proto_id = 0xff, 2092 }, 2093 }; 2094 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 2095 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : 2096 MLX5_FLOW_LAYER_OUTER_L3; 2097 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : 2098 MLX5_FLOW_LAYER_OUTER_L4; 2099 int ret; 2100 uint8_t next_proto = 0xFF; 2101 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 | 2102 MLX5_FLOW_LAYER_OUTER_VLAN | 2103 MLX5_FLOW_LAYER_INNER_VLAN); 2104 2105 if ((last_item & l2_vlan) && ether_type && 2106 ether_type != RTE_ETHER_TYPE_IPV4) 2107 return rte_flow_error_set(error, EINVAL, 2108 RTE_FLOW_ERROR_TYPE_ITEM, item, 2109 "IPv4 cannot follow L2/VLAN layer " 2110 "which ether type is not IPv4"); 2111 if (item_flags & MLX5_FLOW_LAYER_IPIP) { 2112 if (mask && spec) 2113 next_proto = mask->hdr.next_proto_id & 2114 spec->hdr.next_proto_id; 2115 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6) 2116 return rte_flow_error_set(error, EINVAL, 2117 RTE_FLOW_ERROR_TYPE_ITEM, 2118 item, 2119 "multiple tunnel " 2120 "not supported"); 2121 } 2122 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) 2123 return rte_flow_error_set(error, EINVAL, 2124 RTE_FLOW_ERROR_TYPE_ITEM, item, 2125 "wrong tunnel type - IPv6 specified " 2126 "but IPv4 item provided"); 2127 if (item_flags & l3m) 2128 return rte_flow_error_set(error, ENOTSUP, 2129 RTE_FLOW_ERROR_TYPE_ITEM, item, 2130 "multiple L3 layers not supported"); 2131 else if (item_flags & l4m) 2132 return rte_flow_error_set(error, EINVAL, 2133 RTE_FLOW_ERROR_TYPE_ITEM, item, 2134 "L3 cannot follow an L4 layer."); 2135 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) && 2136 !(item_flags & MLX5_FLOW_LAYER_INNER_L2)) 2137 return rte_flow_error_set(error, EINVAL, 2138 RTE_FLOW_ERROR_TYPE_ITEM, item, 2139 "L3 cannot follow an NVGRE layer."); 2140 if (!mask) 2141 mask = &rte_flow_item_ipv4_mask; 2142 else if (mask->hdr.next_proto_id != 0 && 2143 mask->hdr.next_proto_id != 0xff) 2144 return rte_flow_error_set(error, EINVAL, 2145 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask, 2146 "partial mask is not supported" 2147 " for protocol"); 2148 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, 2149 acc_mask ? (const uint8_t *)acc_mask 2150 : (const uint8_t *)&nic_mask, 2151 sizeof(struct rte_flow_item_ipv4), 2152 range_accepted, error); 2153 if (ret < 0) 2154 return ret; 2155 return 0; 2156 } 2157 2158 /** 2159 * Validate IPV6 item. 2160 * 2161 * @param[in] item 2162 * Item specification. 2163 * @param[in] item_flags 2164 * Bit-fields that holds the items detected until now. 2165 * @param[in] last_item 2166 * Previous validated item in the pattern items. 2167 * @param[in] ether_type 2168 * Type in the ethernet layer header (including dot1q). 2169 * @param[in] acc_mask 2170 * Acceptable mask, if NULL default internal default mask 2171 * will be used to check whether item fields are supported. 2172 * @param[out] error 2173 * Pointer to error structure. 2174 * 2175 * @return 2176 * 0 on success, a negative errno value otherwise and rte_errno is set. 2177 */ 2178 int 2179 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item, 2180 uint64_t item_flags, 2181 uint64_t last_item, 2182 uint16_t ether_type, 2183 const struct rte_flow_item_ipv6 *acc_mask, 2184 struct rte_flow_error *error) 2185 { 2186 const struct rte_flow_item_ipv6 *mask = item->mask; 2187 const struct rte_flow_item_ipv6 *spec = item->spec; 2188 const struct rte_flow_item_ipv6 nic_mask = { 2189 .hdr = { 2190 .src_addr = 2191 "\xff\xff\xff\xff\xff\xff\xff\xff" 2192 "\xff\xff\xff\xff\xff\xff\xff\xff", 2193 .dst_addr = 2194 "\xff\xff\xff\xff\xff\xff\xff\xff" 2195 "\xff\xff\xff\xff\xff\xff\xff\xff", 2196 .vtc_flow = RTE_BE32(0xffffffff), 2197 .proto = 0xff, 2198 }, 2199 }; 2200 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 2201 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : 2202 MLX5_FLOW_LAYER_OUTER_L3; 2203 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : 2204 MLX5_FLOW_LAYER_OUTER_L4; 2205 int ret; 2206 uint8_t next_proto = 0xFF; 2207 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 | 2208 MLX5_FLOW_LAYER_OUTER_VLAN | 2209 MLX5_FLOW_LAYER_INNER_VLAN); 2210 2211 if ((last_item & l2_vlan) && ether_type && 2212 ether_type != RTE_ETHER_TYPE_IPV6) 2213 return rte_flow_error_set(error, EINVAL, 2214 RTE_FLOW_ERROR_TYPE_ITEM, item, 2215 "IPv6 cannot follow L2/VLAN layer " 2216 "which ether type is not IPv6"); 2217 if (mask && mask->hdr.proto == UINT8_MAX && spec) 2218 next_proto = spec->hdr.proto; 2219 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) { 2220 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6) 2221 return rte_flow_error_set(error, EINVAL, 2222 RTE_FLOW_ERROR_TYPE_ITEM, 2223 item, 2224 "multiple tunnel " 2225 "not supported"); 2226 } 2227 if (next_proto == IPPROTO_HOPOPTS || 2228 next_proto == IPPROTO_ROUTING || 2229 next_proto == IPPROTO_FRAGMENT || 2230 next_proto == IPPROTO_ESP || 2231 next_proto == IPPROTO_AH || 2232 next_proto == IPPROTO_DSTOPTS) 2233 return rte_flow_error_set(error, EINVAL, 2234 RTE_FLOW_ERROR_TYPE_ITEM, item, 2235 "IPv6 proto (next header) should " 2236 "not be set as extension header"); 2237 if (item_flags & MLX5_FLOW_LAYER_IPIP) 2238 return rte_flow_error_set(error, EINVAL, 2239 RTE_FLOW_ERROR_TYPE_ITEM, item, 2240 "wrong tunnel type - IPv4 specified " 2241 "but IPv6 item provided"); 2242 if (item_flags & l3m) 2243 return rte_flow_error_set(error, ENOTSUP, 2244 RTE_FLOW_ERROR_TYPE_ITEM, item, 2245 "multiple L3 layers not supported"); 2246 else if (item_flags & l4m) 2247 return rte_flow_error_set(error, EINVAL, 2248 RTE_FLOW_ERROR_TYPE_ITEM, item, 2249 "L3 cannot follow an L4 layer."); 2250 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) && 2251 !(item_flags & MLX5_FLOW_LAYER_INNER_L2)) 2252 return rte_flow_error_set(error, EINVAL, 2253 RTE_FLOW_ERROR_TYPE_ITEM, item, 2254 "L3 cannot follow an NVGRE layer."); 2255 if (!mask) 2256 mask = &rte_flow_item_ipv6_mask; 2257 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, 2258 acc_mask ? (const uint8_t *)acc_mask 2259 : (const uint8_t *)&nic_mask, 2260 sizeof(struct rte_flow_item_ipv6), 2261 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2262 if (ret < 0) 2263 return ret; 2264 return 0; 2265 } 2266 2267 /** 2268 * Validate UDP item. 2269 * 2270 * @param[in] item 2271 * Item specification. 2272 * @param[in] item_flags 2273 * Bit-fields that holds the items detected until now. 2274 * @param[in] target_protocol 2275 * The next protocol in the previous item. 2276 * @param[in] flow_mask 2277 * mlx5 flow-specific (DV, verbs, etc.) supported header fields mask. 2278 * @param[out] error 2279 * Pointer to error structure. 2280 * 2281 * @return 2282 * 0 on success, a negative errno value otherwise and rte_errno is set. 2283 */ 2284 int 2285 mlx5_flow_validate_item_udp(const struct rte_flow_item *item, 2286 uint64_t item_flags, 2287 uint8_t target_protocol, 2288 struct rte_flow_error *error) 2289 { 2290 const struct rte_flow_item_udp *mask = item->mask; 2291 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 2292 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : 2293 MLX5_FLOW_LAYER_OUTER_L3; 2294 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : 2295 MLX5_FLOW_LAYER_OUTER_L4; 2296 int ret; 2297 2298 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP) 2299 return rte_flow_error_set(error, EINVAL, 2300 RTE_FLOW_ERROR_TYPE_ITEM, item, 2301 "protocol filtering not compatible" 2302 " with UDP layer"); 2303 if (!(item_flags & l3m)) 2304 return rte_flow_error_set(error, EINVAL, 2305 RTE_FLOW_ERROR_TYPE_ITEM, item, 2306 "L3 is mandatory to filter on L4"); 2307 if (item_flags & l4m) 2308 return rte_flow_error_set(error, EINVAL, 2309 RTE_FLOW_ERROR_TYPE_ITEM, item, 2310 "multiple L4 layers not supported"); 2311 if (!mask) 2312 mask = &rte_flow_item_udp_mask; 2313 ret = mlx5_flow_item_acceptable 2314 (item, (const uint8_t *)mask, 2315 (const uint8_t *)&rte_flow_item_udp_mask, 2316 sizeof(struct rte_flow_item_udp), MLX5_ITEM_RANGE_NOT_ACCEPTED, 2317 error); 2318 if (ret < 0) 2319 return ret; 2320 return 0; 2321 } 2322 2323 /** 2324 * Validate TCP item. 2325 * 2326 * @param[in] item 2327 * Item specification. 2328 * @param[in] item_flags 2329 * Bit-fields that holds the items detected until now. 2330 * @param[in] target_protocol 2331 * The next protocol in the previous item. 2332 * @param[out] error 2333 * Pointer to error structure. 2334 * 2335 * @return 2336 * 0 on success, a negative errno value otherwise and rte_errno is set. 2337 */ 2338 int 2339 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item, 2340 uint64_t item_flags, 2341 uint8_t target_protocol, 2342 const struct rte_flow_item_tcp *flow_mask, 2343 struct rte_flow_error *error) 2344 { 2345 const struct rte_flow_item_tcp *mask = item->mask; 2346 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); 2347 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : 2348 MLX5_FLOW_LAYER_OUTER_L3; 2349 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : 2350 MLX5_FLOW_LAYER_OUTER_L4; 2351 int ret; 2352 2353 MLX5_ASSERT(flow_mask); 2354 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP) 2355 return rte_flow_error_set(error, EINVAL, 2356 RTE_FLOW_ERROR_TYPE_ITEM, item, 2357 "protocol filtering not compatible" 2358 " with TCP layer"); 2359 if (!(item_flags & l3m)) 2360 return rte_flow_error_set(error, EINVAL, 2361 RTE_FLOW_ERROR_TYPE_ITEM, item, 2362 "L3 is mandatory to filter on L4"); 2363 if (item_flags & l4m) 2364 return rte_flow_error_set(error, EINVAL, 2365 RTE_FLOW_ERROR_TYPE_ITEM, item, 2366 "multiple L4 layers not supported"); 2367 if (!mask) 2368 mask = &rte_flow_item_tcp_mask; 2369 ret = mlx5_flow_item_acceptable 2370 (item, (const uint8_t *)mask, 2371 (const uint8_t *)flow_mask, 2372 sizeof(struct rte_flow_item_tcp), MLX5_ITEM_RANGE_NOT_ACCEPTED, 2373 error); 2374 if (ret < 0) 2375 return ret; 2376 return 0; 2377 } 2378 2379 /** 2380 * Validate VXLAN item. 2381 * 2382 * @param[in] item 2383 * Item specification. 2384 * @param[in] item_flags 2385 * Bit-fields that holds the items detected until now. 2386 * @param[in] target_protocol 2387 * The next protocol in the previous item. 2388 * @param[out] error 2389 * Pointer to error structure. 2390 * 2391 * @return 2392 * 0 on success, a negative errno value otherwise and rte_errno is set. 2393 */ 2394 int 2395 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item, 2396 uint64_t item_flags, 2397 struct rte_flow_error *error) 2398 { 2399 const struct rte_flow_item_vxlan *spec = item->spec; 2400 const struct rte_flow_item_vxlan *mask = item->mask; 2401 int ret; 2402 union vni { 2403 uint32_t vlan_id; 2404 uint8_t vni[4]; 2405 } id = { .vlan_id = 0, }; 2406 2407 2408 if (item_flags & MLX5_FLOW_LAYER_TUNNEL) 2409 return rte_flow_error_set(error, ENOTSUP, 2410 RTE_FLOW_ERROR_TYPE_ITEM, item, 2411 "multiple tunnel layers not" 2412 " supported"); 2413 /* 2414 * Verify only UDPv4 is present as defined in 2415 * https://tools.ietf.org/html/rfc7348 2416 */ 2417 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) 2418 return rte_flow_error_set(error, EINVAL, 2419 RTE_FLOW_ERROR_TYPE_ITEM, item, 2420 "no outer UDP layer found"); 2421 if (!mask) 2422 mask = &rte_flow_item_vxlan_mask; 2423 ret = mlx5_flow_item_acceptable 2424 (item, (const uint8_t *)mask, 2425 (const uint8_t *)&rte_flow_item_vxlan_mask, 2426 sizeof(struct rte_flow_item_vxlan), 2427 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2428 if (ret < 0) 2429 return ret; 2430 if (spec) { 2431 memcpy(&id.vni[1], spec->vni, 3); 2432 memcpy(&id.vni[1], mask->vni, 3); 2433 } 2434 if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) 2435 return rte_flow_error_set(error, ENOTSUP, 2436 RTE_FLOW_ERROR_TYPE_ITEM, item, 2437 "VXLAN tunnel must be fully defined"); 2438 return 0; 2439 } 2440 2441 /** 2442 * Validate VXLAN_GPE item. 2443 * 2444 * @param[in] item 2445 * Item specification. 2446 * @param[in] item_flags 2447 * Bit-fields that holds the items detected until now. 2448 * @param[in] priv 2449 * Pointer to the private data structure. 2450 * @param[in] target_protocol 2451 * The next protocol in the previous item. 2452 * @param[out] error 2453 * Pointer to error structure. 2454 * 2455 * @return 2456 * 0 on success, a negative errno value otherwise and rte_errno is set. 2457 */ 2458 int 2459 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item, 2460 uint64_t item_flags, 2461 struct rte_eth_dev *dev, 2462 struct rte_flow_error *error) 2463 { 2464 struct mlx5_priv *priv = dev->data->dev_private; 2465 const struct rte_flow_item_vxlan_gpe *spec = item->spec; 2466 const struct rte_flow_item_vxlan_gpe *mask = item->mask; 2467 int ret; 2468 union vni { 2469 uint32_t vlan_id; 2470 uint8_t vni[4]; 2471 } id = { .vlan_id = 0, }; 2472 2473 if (!priv->config.l3_vxlan_en) 2474 return rte_flow_error_set(error, ENOTSUP, 2475 RTE_FLOW_ERROR_TYPE_ITEM, item, 2476 "L3 VXLAN is not enabled by device" 2477 " parameter and/or not configured in" 2478 " firmware"); 2479 if (item_flags & MLX5_FLOW_LAYER_TUNNEL) 2480 return rte_flow_error_set(error, ENOTSUP, 2481 RTE_FLOW_ERROR_TYPE_ITEM, item, 2482 "multiple tunnel layers not" 2483 " supported"); 2484 /* 2485 * Verify only UDPv4 is present as defined in 2486 * https://tools.ietf.org/html/rfc7348 2487 */ 2488 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) 2489 return rte_flow_error_set(error, EINVAL, 2490 RTE_FLOW_ERROR_TYPE_ITEM, item, 2491 "no outer UDP layer found"); 2492 if (!mask) 2493 mask = &rte_flow_item_vxlan_gpe_mask; 2494 ret = mlx5_flow_item_acceptable 2495 (item, (const uint8_t *)mask, 2496 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask, 2497 sizeof(struct rte_flow_item_vxlan_gpe), 2498 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2499 if (ret < 0) 2500 return ret; 2501 if (spec) { 2502 if (spec->protocol) 2503 return rte_flow_error_set(error, ENOTSUP, 2504 RTE_FLOW_ERROR_TYPE_ITEM, 2505 item, 2506 "VxLAN-GPE protocol" 2507 " not supported"); 2508 memcpy(&id.vni[1], spec->vni, 3); 2509 memcpy(&id.vni[1], mask->vni, 3); 2510 } 2511 if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) 2512 return rte_flow_error_set(error, ENOTSUP, 2513 RTE_FLOW_ERROR_TYPE_ITEM, item, 2514 "VXLAN-GPE tunnel must be fully" 2515 " defined"); 2516 return 0; 2517 } 2518 /** 2519 * Validate GRE Key item. 2520 * 2521 * @param[in] item 2522 * Item specification. 2523 * @param[in] item_flags 2524 * Bit flags to mark detected items. 2525 * @param[in] gre_item 2526 * Pointer to gre_item 2527 * @param[out] error 2528 * Pointer to error structure. 2529 * 2530 * @return 2531 * 0 on success, a negative errno value otherwise and rte_errno is set. 2532 */ 2533 int 2534 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item, 2535 uint64_t item_flags, 2536 const struct rte_flow_item *gre_item, 2537 struct rte_flow_error *error) 2538 { 2539 const rte_be32_t *mask = item->mask; 2540 int ret = 0; 2541 rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX); 2542 const struct rte_flow_item_gre *gre_spec; 2543 const struct rte_flow_item_gre *gre_mask; 2544 2545 if (item_flags & MLX5_FLOW_LAYER_GRE_KEY) 2546 return rte_flow_error_set(error, ENOTSUP, 2547 RTE_FLOW_ERROR_TYPE_ITEM, item, 2548 "Multiple GRE key not support"); 2549 if (!(item_flags & MLX5_FLOW_LAYER_GRE)) 2550 return rte_flow_error_set(error, ENOTSUP, 2551 RTE_FLOW_ERROR_TYPE_ITEM, item, 2552 "No preceding GRE header"); 2553 if (item_flags & MLX5_FLOW_LAYER_INNER) 2554 return rte_flow_error_set(error, ENOTSUP, 2555 RTE_FLOW_ERROR_TYPE_ITEM, item, 2556 "GRE key following a wrong item"); 2557 gre_mask = gre_item->mask; 2558 if (!gre_mask) 2559 gre_mask = &rte_flow_item_gre_mask; 2560 gre_spec = gre_item->spec; 2561 if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) && 2562 !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000))) 2563 return rte_flow_error_set(error, EINVAL, 2564 RTE_FLOW_ERROR_TYPE_ITEM, item, 2565 "Key bit must be on"); 2566 2567 if (!mask) 2568 mask = &gre_key_default_mask; 2569 ret = mlx5_flow_item_acceptable 2570 (item, (const uint8_t *)mask, 2571 (const uint8_t *)&gre_key_default_mask, 2572 sizeof(rte_be32_t), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2573 return ret; 2574 } 2575 2576 /** 2577 * Validate GRE item. 2578 * 2579 * @param[in] item 2580 * Item specification. 2581 * @param[in] item_flags 2582 * Bit flags to mark detected items. 2583 * @param[in] target_protocol 2584 * The next protocol in the previous item. 2585 * @param[out] error 2586 * Pointer to error structure. 2587 * 2588 * @return 2589 * 0 on success, a negative errno value otherwise and rte_errno is set. 2590 */ 2591 int 2592 mlx5_flow_validate_item_gre(const struct rte_flow_item *item, 2593 uint64_t item_flags, 2594 uint8_t target_protocol, 2595 struct rte_flow_error *error) 2596 { 2597 const struct rte_flow_item_gre *spec __rte_unused = item->spec; 2598 const struct rte_flow_item_gre *mask = item->mask; 2599 int ret; 2600 const struct rte_flow_item_gre nic_mask = { 2601 .c_rsvd0_ver = RTE_BE16(0xB000), 2602 .protocol = RTE_BE16(UINT16_MAX), 2603 }; 2604 2605 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE) 2606 return rte_flow_error_set(error, EINVAL, 2607 RTE_FLOW_ERROR_TYPE_ITEM, item, 2608 "protocol filtering not compatible" 2609 " with this GRE layer"); 2610 if (item_flags & MLX5_FLOW_LAYER_TUNNEL) 2611 return rte_flow_error_set(error, ENOTSUP, 2612 RTE_FLOW_ERROR_TYPE_ITEM, item, 2613 "multiple tunnel layers not" 2614 " supported"); 2615 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3)) 2616 return rte_flow_error_set(error, ENOTSUP, 2617 RTE_FLOW_ERROR_TYPE_ITEM, item, 2618 "L3 Layer is missing"); 2619 if (!mask) 2620 mask = &rte_flow_item_gre_mask; 2621 ret = mlx5_flow_item_acceptable 2622 (item, (const uint8_t *)mask, 2623 (const uint8_t *)&nic_mask, 2624 sizeof(struct rte_flow_item_gre), MLX5_ITEM_RANGE_NOT_ACCEPTED, 2625 error); 2626 if (ret < 0) 2627 return ret; 2628 #ifndef HAVE_MLX5DV_DR 2629 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT 2630 if (spec && (spec->protocol & mask->protocol)) 2631 return rte_flow_error_set(error, ENOTSUP, 2632 RTE_FLOW_ERROR_TYPE_ITEM, item, 2633 "without MPLS support the" 2634 " specification cannot be used for" 2635 " filtering"); 2636 #endif 2637 #endif 2638 return 0; 2639 } 2640 2641 /** 2642 * Validate Geneve item. 2643 * 2644 * @param[in] item 2645 * Item specification. 2646 * @param[in] itemFlags 2647 * Bit-fields that holds the items detected until now. 2648 * @param[in] enPriv 2649 * Pointer to the private data structure. 2650 * @param[out] error 2651 * Pointer to error structure. 2652 * 2653 * @return 2654 * 0 on success, a negative errno value otherwise and rte_errno is set. 2655 */ 2656 2657 int 2658 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item, 2659 uint64_t item_flags, 2660 struct rte_eth_dev *dev, 2661 struct rte_flow_error *error) 2662 { 2663 struct mlx5_priv *priv = dev->data->dev_private; 2664 const struct rte_flow_item_geneve *spec = item->spec; 2665 const struct rte_flow_item_geneve *mask = item->mask; 2666 int ret; 2667 uint16_t gbhdr; 2668 uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ? 2669 MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0; 2670 const struct rte_flow_item_geneve nic_mask = { 2671 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80), 2672 .vni = "\xff\xff\xff", 2673 .protocol = RTE_BE16(UINT16_MAX), 2674 }; 2675 2676 if (!priv->config.hca_attr.tunnel_stateless_geneve_rx) 2677 return rte_flow_error_set(error, ENOTSUP, 2678 RTE_FLOW_ERROR_TYPE_ITEM, item, 2679 "L3 Geneve is not enabled by device" 2680 " parameter and/or not configured in" 2681 " firmware"); 2682 if (item_flags & MLX5_FLOW_LAYER_TUNNEL) 2683 return rte_flow_error_set(error, ENOTSUP, 2684 RTE_FLOW_ERROR_TYPE_ITEM, item, 2685 "multiple tunnel layers not" 2686 " supported"); 2687 /* 2688 * Verify only UDPv4 is present as defined in 2689 * https://tools.ietf.org/html/rfc7348 2690 */ 2691 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) 2692 return rte_flow_error_set(error, EINVAL, 2693 RTE_FLOW_ERROR_TYPE_ITEM, item, 2694 "no outer UDP layer found"); 2695 if (!mask) 2696 mask = &rte_flow_item_geneve_mask; 2697 ret = mlx5_flow_item_acceptable 2698 (item, (const uint8_t *)mask, 2699 (const uint8_t *)&nic_mask, 2700 sizeof(struct rte_flow_item_geneve), 2701 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2702 if (ret) 2703 return ret; 2704 if (spec) { 2705 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0); 2706 if (MLX5_GENEVE_VER_VAL(gbhdr) || 2707 MLX5_GENEVE_CRITO_VAL(gbhdr) || 2708 MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1) 2709 return rte_flow_error_set(error, ENOTSUP, 2710 RTE_FLOW_ERROR_TYPE_ITEM, 2711 item, 2712 "Geneve protocol unsupported" 2713 " fields are being used"); 2714 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len) 2715 return rte_flow_error_set 2716 (error, ENOTSUP, 2717 RTE_FLOW_ERROR_TYPE_ITEM, 2718 item, 2719 "Unsupported Geneve options length"); 2720 } 2721 if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) 2722 return rte_flow_error_set 2723 (error, ENOTSUP, 2724 RTE_FLOW_ERROR_TYPE_ITEM, item, 2725 "Geneve tunnel must be fully defined"); 2726 return 0; 2727 } 2728 2729 /** 2730 * Validate MPLS item. 2731 * 2732 * @param[in] dev 2733 * Pointer to the rte_eth_dev structure. 2734 * @param[in] item 2735 * Item specification. 2736 * @param[in] item_flags 2737 * Bit-fields that holds the items detected until now. 2738 * @param[in] prev_layer 2739 * The protocol layer indicated in previous item. 2740 * @param[out] error 2741 * Pointer to error structure. 2742 * 2743 * @return 2744 * 0 on success, a negative errno value otherwise and rte_errno is set. 2745 */ 2746 int 2747 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused, 2748 const struct rte_flow_item *item __rte_unused, 2749 uint64_t item_flags __rte_unused, 2750 uint64_t prev_layer __rte_unused, 2751 struct rte_flow_error *error) 2752 { 2753 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT 2754 const struct rte_flow_item_mpls *mask = item->mask; 2755 struct mlx5_priv *priv = dev->data->dev_private; 2756 int ret; 2757 2758 if (!priv->config.mpls_en) 2759 return rte_flow_error_set(error, ENOTSUP, 2760 RTE_FLOW_ERROR_TYPE_ITEM, item, 2761 "MPLS not supported or" 2762 " disabled in firmware" 2763 " configuration."); 2764 /* MPLS over IP, UDP, GRE is allowed */ 2765 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 | 2766 MLX5_FLOW_LAYER_OUTER_L4_UDP | 2767 MLX5_FLOW_LAYER_GRE))) 2768 return rte_flow_error_set(error, EINVAL, 2769 RTE_FLOW_ERROR_TYPE_ITEM, item, 2770 "protocol filtering not compatible" 2771 " with MPLS layer"); 2772 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */ 2773 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) && 2774 !(item_flags & MLX5_FLOW_LAYER_GRE)) 2775 return rte_flow_error_set(error, ENOTSUP, 2776 RTE_FLOW_ERROR_TYPE_ITEM, item, 2777 "multiple tunnel layers not" 2778 " supported"); 2779 if (!mask) 2780 mask = &rte_flow_item_mpls_mask; 2781 ret = mlx5_flow_item_acceptable 2782 (item, (const uint8_t *)mask, 2783 (const uint8_t *)&rte_flow_item_mpls_mask, 2784 sizeof(struct rte_flow_item_mpls), 2785 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2786 if (ret < 0) 2787 return ret; 2788 return 0; 2789 #else 2790 return rte_flow_error_set(error, ENOTSUP, 2791 RTE_FLOW_ERROR_TYPE_ITEM, item, 2792 "MPLS is not supported by Verbs, please" 2793 " update."); 2794 #endif 2795 } 2796 2797 /** 2798 * Validate NVGRE item. 2799 * 2800 * @param[in] item 2801 * Item specification. 2802 * @param[in] item_flags 2803 * Bit flags to mark detected items. 2804 * @param[in] target_protocol 2805 * The next protocol in the previous item. 2806 * @param[out] error 2807 * Pointer to error structure. 2808 * 2809 * @return 2810 * 0 on success, a negative errno value otherwise and rte_errno is set. 2811 */ 2812 int 2813 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item, 2814 uint64_t item_flags, 2815 uint8_t target_protocol, 2816 struct rte_flow_error *error) 2817 { 2818 const struct rte_flow_item_nvgre *mask = item->mask; 2819 int ret; 2820 2821 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE) 2822 return rte_flow_error_set(error, EINVAL, 2823 RTE_FLOW_ERROR_TYPE_ITEM, item, 2824 "protocol filtering not compatible" 2825 " with this GRE layer"); 2826 if (item_flags & MLX5_FLOW_LAYER_TUNNEL) 2827 return rte_flow_error_set(error, ENOTSUP, 2828 RTE_FLOW_ERROR_TYPE_ITEM, item, 2829 "multiple tunnel layers not" 2830 " supported"); 2831 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3)) 2832 return rte_flow_error_set(error, ENOTSUP, 2833 RTE_FLOW_ERROR_TYPE_ITEM, item, 2834 "L3 Layer is missing"); 2835 if (!mask) 2836 mask = &rte_flow_item_nvgre_mask; 2837 ret = mlx5_flow_item_acceptable 2838 (item, (const uint8_t *)mask, 2839 (const uint8_t *)&rte_flow_item_nvgre_mask, 2840 sizeof(struct rte_flow_item_nvgre), 2841 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2842 if (ret < 0) 2843 return ret; 2844 return 0; 2845 } 2846 2847 /** 2848 * Validate eCPRI item. 2849 * 2850 * @param[in] item 2851 * Item specification. 2852 * @param[in] item_flags 2853 * Bit-fields that holds the items detected until now. 2854 * @param[in] last_item 2855 * Previous validated item in the pattern items. 2856 * @param[in] ether_type 2857 * Type in the ethernet layer header (including dot1q). 2858 * @param[in] acc_mask 2859 * Acceptable mask, if NULL default internal default mask 2860 * will be used to check whether item fields are supported. 2861 * @param[out] error 2862 * Pointer to error structure. 2863 * 2864 * @return 2865 * 0 on success, a negative errno value otherwise and rte_errno is set. 2866 */ 2867 int 2868 mlx5_flow_validate_item_ecpri(const struct rte_flow_item *item, 2869 uint64_t item_flags, 2870 uint64_t last_item, 2871 uint16_t ether_type, 2872 const struct rte_flow_item_ecpri *acc_mask, 2873 struct rte_flow_error *error) 2874 { 2875 const struct rte_flow_item_ecpri *mask = item->mask; 2876 const struct rte_flow_item_ecpri nic_mask = { 2877 .hdr = { 2878 .common = { 2879 .u32 = 2880 RTE_BE32(((const struct rte_ecpri_common_hdr) { 2881 .type = 0xFF, 2882 }).u32), 2883 }, 2884 .dummy[0] = 0xFFFFFFFF, 2885 }, 2886 }; 2887 const uint64_t outer_l2_vlan = (MLX5_FLOW_LAYER_OUTER_L2 | 2888 MLX5_FLOW_LAYER_OUTER_VLAN); 2889 struct rte_flow_item_ecpri mask_lo; 2890 2891 if ((last_item & outer_l2_vlan) && ether_type && 2892 ether_type != RTE_ETHER_TYPE_ECPRI) 2893 return rte_flow_error_set(error, EINVAL, 2894 RTE_FLOW_ERROR_TYPE_ITEM, item, 2895 "eCPRI cannot follow L2/VLAN layer " 2896 "which ether type is not 0xAEFE."); 2897 if (item_flags & MLX5_FLOW_LAYER_TUNNEL) 2898 return rte_flow_error_set(error, EINVAL, 2899 RTE_FLOW_ERROR_TYPE_ITEM, item, 2900 "eCPRI with tunnel is not supported " 2901 "right now."); 2902 if (item_flags & MLX5_FLOW_LAYER_OUTER_L3) 2903 return rte_flow_error_set(error, ENOTSUP, 2904 RTE_FLOW_ERROR_TYPE_ITEM, item, 2905 "multiple L3 layers not supported"); 2906 else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP) 2907 return rte_flow_error_set(error, EINVAL, 2908 RTE_FLOW_ERROR_TYPE_ITEM, item, 2909 "eCPRI cannot follow a TCP layer."); 2910 /* In specification, eCPRI could be over UDP layer. */ 2911 else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP) 2912 return rte_flow_error_set(error, EINVAL, 2913 RTE_FLOW_ERROR_TYPE_ITEM, item, 2914 "eCPRI over UDP layer is not yet " 2915 "supported right now."); 2916 /* Mask for type field in common header could be zero. */ 2917 if (!mask) 2918 mask = &rte_flow_item_ecpri_mask; 2919 mask_lo.hdr.common.u32 = rte_be_to_cpu_32(mask->hdr.common.u32); 2920 /* Input mask is in big-endian format. */ 2921 if (mask_lo.hdr.common.type != 0 && mask_lo.hdr.common.type != 0xff) 2922 return rte_flow_error_set(error, EINVAL, 2923 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask, 2924 "partial mask is not supported " 2925 "for protocol"); 2926 else if (mask_lo.hdr.common.type == 0 && mask->hdr.dummy[0] != 0) 2927 return rte_flow_error_set(error, EINVAL, 2928 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask, 2929 "message header mask must be after " 2930 "a type mask"); 2931 return mlx5_flow_item_acceptable(item, (const uint8_t *)mask, 2932 acc_mask ? (const uint8_t *)acc_mask 2933 : (const uint8_t *)&nic_mask, 2934 sizeof(struct rte_flow_item_ecpri), 2935 MLX5_ITEM_RANGE_NOT_ACCEPTED, error); 2936 } 2937 2938 /** 2939 * Release resource related QUEUE/RSS action split. 2940 * 2941 * @param dev 2942 * Pointer to Ethernet device. 2943 * @param flow 2944 * Flow to release id's from. 2945 */ 2946 static void 2947 flow_mreg_split_qrss_release(struct rte_eth_dev *dev, 2948 struct rte_flow *flow) 2949 { 2950 struct mlx5_priv *priv = dev->data->dev_private; 2951 uint32_t handle_idx; 2952 struct mlx5_flow_handle *dev_handle; 2953 2954 SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles, 2955 handle_idx, dev_handle, next) 2956 if (dev_handle->split_flow_id) 2957 mlx5_ipool_free(priv->sh->ipool 2958 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], 2959 dev_handle->split_flow_id); 2960 } 2961 2962 static int 2963 flow_null_validate(struct rte_eth_dev *dev __rte_unused, 2964 const struct rte_flow_attr *attr __rte_unused, 2965 const struct rte_flow_item items[] __rte_unused, 2966 const struct rte_flow_action actions[] __rte_unused, 2967 bool external __rte_unused, 2968 int hairpin __rte_unused, 2969 struct rte_flow_error *error) 2970 { 2971 return rte_flow_error_set(error, ENOTSUP, 2972 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); 2973 } 2974 2975 static struct mlx5_flow * 2976 flow_null_prepare(struct rte_eth_dev *dev __rte_unused, 2977 const struct rte_flow_attr *attr __rte_unused, 2978 const struct rte_flow_item items[] __rte_unused, 2979 const struct rte_flow_action actions[] __rte_unused, 2980 struct rte_flow_error *error) 2981 { 2982 rte_flow_error_set(error, ENOTSUP, 2983 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); 2984 return NULL; 2985 } 2986 2987 static int 2988 flow_null_translate(struct rte_eth_dev *dev __rte_unused, 2989 struct mlx5_flow *dev_flow __rte_unused, 2990 const struct rte_flow_attr *attr __rte_unused, 2991 const struct rte_flow_item items[] __rte_unused, 2992 const struct rte_flow_action actions[] __rte_unused, 2993 struct rte_flow_error *error) 2994 { 2995 return rte_flow_error_set(error, ENOTSUP, 2996 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); 2997 } 2998 2999 static int 3000 flow_null_apply(struct rte_eth_dev *dev __rte_unused, 3001 struct rte_flow *flow __rte_unused, 3002 struct rte_flow_error *error) 3003 { 3004 return rte_flow_error_set(error, ENOTSUP, 3005 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); 3006 } 3007 3008 static void 3009 flow_null_remove(struct rte_eth_dev *dev __rte_unused, 3010 struct rte_flow *flow __rte_unused) 3011 { 3012 } 3013 3014 static void 3015 flow_null_destroy(struct rte_eth_dev *dev __rte_unused, 3016 struct rte_flow *flow __rte_unused) 3017 { 3018 } 3019 3020 static int 3021 flow_null_query(struct rte_eth_dev *dev __rte_unused, 3022 struct rte_flow *flow __rte_unused, 3023 const struct rte_flow_action *actions __rte_unused, 3024 void *data __rte_unused, 3025 struct rte_flow_error *error) 3026 { 3027 return rte_flow_error_set(error, ENOTSUP, 3028 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); 3029 } 3030 3031 static int 3032 flow_null_sync_domain(struct rte_eth_dev *dev __rte_unused, 3033 uint32_t domains __rte_unused, 3034 uint32_t flags __rte_unused) 3035 { 3036 return 0; 3037 } 3038 3039 /* Void driver to protect from null pointer reference. */ 3040 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = { 3041 .validate = flow_null_validate, 3042 .prepare = flow_null_prepare, 3043 .translate = flow_null_translate, 3044 .apply = flow_null_apply, 3045 .remove = flow_null_remove, 3046 .destroy = flow_null_destroy, 3047 .query = flow_null_query, 3048 .sync_domain = flow_null_sync_domain, 3049 }; 3050 3051 /** 3052 * Select flow driver type according to flow attributes and device 3053 * configuration. 3054 * 3055 * @param[in] dev 3056 * Pointer to the dev structure. 3057 * @param[in] attr 3058 * Pointer to the flow attributes. 3059 * 3060 * @return 3061 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise. 3062 */ 3063 static enum mlx5_flow_drv_type 3064 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr) 3065 { 3066 struct mlx5_priv *priv = dev->data->dev_private; 3067 /* The OS can determine first a specific flow type (DV, VERBS) */ 3068 enum mlx5_flow_drv_type type = mlx5_flow_os_get_type(); 3069 3070 if (type != MLX5_FLOW_TYPE_MAX) 3071 return type; 3072 /* If no OS specific type - continue with DV/VERBS selection */ 3073 if (attr->transfer && priv->config.dv_esw_en) 3074 type = MLX5_FLOW_TYPE_DV; 3075 if (!attr->transfer) 3076 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV : 3077 MLX5_FLOW_TYPE_VERBS; 3078 return type; 3079 } 3080 3081 #define flow_get_drv_ops(type) flow_drv_ops[type] 3082 3083 /** 3084 * Flow driver validation API. This abstracts calling driver specific functions. 3085 * The type of flow driver is determined according to flow attributes. 3086 * 3087 * @param[in] dev 3088 * Pointer to the dev structure. 3089 * @param[in] attr 3090 * Pointer to the flow attributes. 3091 * @param[in] items 3092 * Pointer to the list of items. 3093 * @param[in] actions 3094 * Pointer to the list of actions. 3095 * @param[in] external 3096 * This flow rule is created by request external to PMD. 3097 * @param[in] hairpin 3098 * Number of hairpin TX actions, 0 means classic flow. 3099 * @param[out] error 3100 * Pointer to the error structure. 3101 * 3102 * @return 3103 * 0 on success, a negative errno value otherwise and rte_errno is set. 3104 */ 3105 static inline int 3106 flow_drv_validate(struct rte_eth_dev *dev, 3107 const struct rte_flow_attr *attr, 3108 const struct rte_flow_item items[], 3109 const struct rte_flow_action actions[], 3110 bool external, int hairpin, struct rte_flow_error *error) 3111 { 3112 const struct mlx5_flow_driver_ops *fops; 3113 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr); 3114 3115 fops = flow_get_drv_ops(type); 3116 return fops->validate(dev, attr, items, actions, external, 3117 hairpin, error); 3118 } 3119 3120 /** 3121 * Flow driver preparation API. This abstracts calling driver specific 3122 * functions. Parent flow (rte_flow) should have driver type (drv_type). It 3123 * calculates the size of memory required for device flow, allocates the memory, 3124 * initializes the device flow and returns the pointer. 3125 * 3126 * @note 3127 * This function initializes device flow structure such as dv or verbs in 3128 * struct mlx5_flow. However, it is caller's responsibility to initialize the 3129 * rest. For example, adding returning device flow to flow->dev_flow list and 3130 * setting backward reference to the flow should be done out of this function. 3131 * layers field is not filled either. 3132 * 3133 * @param[in] dev 3134 * Pointer to the dev structure. 3135 * @param[in] attr 3136 * Pointer to the flow attributes. 3137 * @param[in] items 3138 * Pointer to the list of items. 3139 * @param[in] actions 3140 * Pointer to the list of actions. 3141 * @param[in] flow_idx 3142 * This memory pool index to the flow. 3143 * @param[out] error 3144 * Pointer to the error structure. 3145 * 3146 * @return 3147 * Pointer to device flow on success, otherwise NULL and rte_errno is set. 3148 */ 3149 static inline struct mlx5_flow * 3150 flow_drv_prepare(struct rte_eth_dev *dev, 3151 const struct rte_flow *flow, 3152 const struct rte_flow_attr *attr, 3153 const struct rte_flow_item items[], 3154 const struct rte_flow_action actions[], 3155 uint32_t flow_idx, 3156 struct rte_flow_error *error) 3157 { 3158 const struct mlx5_flow_driver_ops *fops; 3159 enum mlx5_flow_drv_type type = flow->drv_type; 3160 struct mlx5_flow *mlx5_flow = NULL; 3161 3162 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); 3163 fops = flow_get_drv_ops(type); 3164 mlx5_flow = fops->prepare(dev, attr, items, actions, error); 3165 if (mlx5_flow) 3166 mlx5_flow->flow_idx = flow_idx; 3167 return mlx5_flow; 3168 } 3169 3170 /** 3171 * Flow driver translation API. This abstracts calling driver specific 3172 * functions. Parent flow (rte_flow) should have driver type (drv_type). It 3173 * translates a generic flow into a driver flow. flow_drv_prepare() must 3174 * precede. 3175 * 3176 * @note 3177 * dev_flow->layers could be filled as a result of parsing during translation 3178 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled 3179 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion, 3180 * flow->actions could be overwritten even though all the expanded dev_flows 3181 * have the same actions. 3182 * 3183 * @param[in] dev 3184 * Pointer to the rte dev structure. 3185 * @param[in, out] dev_flow 3186 * Pointer to the mlx5 flow. 3187 * @param[in] attr 3188 * Pointer to the flow attributes. 3189 * @param[in] items 3190 * Pointer to the list of items. 3191 * @param[in] actions 3192 * Pointer to the list of actions. 3193 * @param[out] error 3194 * Pointer to the error structure. 3195 * 3196 * @return 3197 * 0 on success, a negative errno value otherwise and rte_errno is set. 3198 */ 3199 static inline int 3200 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow, 3201 const struct rte_flow_attr *attr, 3202 const struct rte_flow_item items[], 3203 const struct rte_flow_action actions[], 3204 struct rte_flow_error *error) 3205 { 3206 const struct mlx5_flow_driver_ops *fops; 3207 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type; 3208 3209 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); 3210 fops = flow_get_drv_ops(type); 3211 return fops->translate(dev, dev_flow, attr, items, actions, error); 3212 } 3213 3214 /** 3215 * Flow driver apply API. This abstracts calling driver specific functions. 3216 * Parent flow (rte_flow) should have driver type (drv_type). It applies 3217 * translated driver flows on to device. flow_drv_translate() must precede. 3218 * 3219 * @param[in] dev 3220 * Pointer to Ethernet device structure. 3221 * @param[in, out] flow 3222 * Pointer to flow structure. 3223 * @param[out] error 3224 * Pointer to error structure. 3225 * 3226 * @return 3227 * 0 on success, a negative errno value otherwise and rte_errno is set. 3228 */ 3229 static inline int 3230 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow, 3231 struct rte_flow_error *error) 3232 { 3233 const struct mlx5_flow_driver_ops *fops; 3234 enum mlx5_flow_drv_type type = flow->drv_type; 3235 3236 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); 3237 fops = flow_get_drv_ops(type); 3238 return fops->apply(dev, flow, error); 3239 } 3240 3241 /** 3242 * Flow driver destroy API. This abstracts calling driver specific functions. 3243 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow 3244 * on device and releases resources of the flow. 3245 * 3246 * @param[in] dev 3247 * Pointer to Ethernet device. 3248 * @param[in, out] flow 3249 * Pointer to flow structure. 3250 */ 3251 static inline void 3252 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow) 3253 { 3254 const struct mlx5_flow_driver_ops *fops; 3255 enum mlx5_flow_drv_type type = flow->drv_type; 3256 3257 flow_mreg_split_qrss_release(dev, flow); 3258 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); 3259 fops = flow_get_drv_ops(type); 3260 fops->destroy(dev, flow); 3261 } 3262 3263 /** 3264 * Get RSS action from the action list. 3265 * 3266 * @param[in] actions 3267 * Pointer to the list of actions. 3268 * 3269 * @return 3270 * Pointer to the RSS action if exist, else return NULL. 3271 */ 3272 static const struct rte_flow_action_rss* 3273 flow_get_rss_action(const struct rte_flow_action actions[]) 3274 { 3275 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 3276 switch (actions->type) { 3277 case RTE_FLOW_ACTION_TYPE_RSS: 3278 return (const struct rte_flow_action_rss *) 3279 actions->conf; 3280 default: 3281 break; 3282 } 3283 } 3284 return NULL; 3285 } 3286 3287 /* maps shared action to translated non shared in some actions array */ 3288 struct mlx5_translated_shared_action { 3289 struct rte_flow_shared_action *action; /**< Shared action */ 3290 int index; /**< Index in related array of rte_flow_action */ 3291 }; 3292 3293 /** 3294 * Translates actions of type RTE_FLOW_ACTION_TYPE_SHARED to related 3295 * non shared action if translation possible. 3296 * This functionality used to run same execution path for both shared & non 3297 * shared actions on flow create. All necessary preparations for shared 3298 * action handling should be preformed on *shared* actions list returned 3299 * from this call. 3300 * 3301 * @param[in] actions 3302 * List of actions to translate. 3303 * @param[out] shared 3304 * List to store translated shared actions. 3305 * @param[in, out] shared_n 3306 * Size of *shared* array. On return should be updated with number of shared 3307 * actions retrieved from the *actions* list. 3308 * @param[out] translated_actions 3309 * List of actions where all shared actions were translated to non shared 3310 * if possible. NULL if no translation took place. 3311 * @param[out] error 3312 * Pointer to the error structure. 3313 * 3314 * @return 3315 * 0 on success, a negative errno value otherwise and rte_errno is set. 3316 */ 3317 static int 3318 flow_shared_actions_translate(const struct rte_flow_action actions[], 3319 struct mlx5_translated_shared_action *shared, 3320 int *shared_n, 3321 struct rte_flow_action **translated_actions, 3322 struct rte_flow_error *error) 3323 { 3324 struct rte_flow_action *translated = NULL; 3325 size_t actions_size; 3326 int n; 3327 int copied_n = 0; 3328 struct mlx5_translated_shared_action *shared_end = NULL; 3329 3330 for (n = 0; actions[n].type != RTE_FLOW_ACTION_TYPE_END; n++) { 3331 if (actions[n].type != RTE_FLOW_ACTION_TYPE_SHARED) 3332 continue; 3333 if (copied_n == *shared_n) { 3334 return rte_flow_error_set 3335 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_NUM, 3336 NULL, "too many shared actions"); 3337 } 3338 rte_memcpy(&shared[copied_n].action, &actions[n].conf, 3339 sizeof(actions[n].conf)); 3340 shared[copied_n].index = n; 3341 copied_n++; 3342 } 3343 n++; 3344 *shared_n = copied_n; 3345 if (!copied_n) 3346 return 0; 3347 actions_size = sizeof(struct rte_flow_action) * n; 3348 translated = mlx5_malloc(MLX5_MEM_ZERO, actions_size, 0, SOCKET_ID_ANY); 3349 if (!translated) { 3350 rte_errno = ENOMEM; 3351 return -ENOMEM; 3352 } 3353 memcpy(translated, actions, actions_size); 3354 for (shared_end = shared + copied_n; shared < shared_end; shared++) { 3355 const struct rte_flow_shared_action *shared_action; 3356 3357 shared_action = shared->action; 3358 switch (shared_action->type) { 3359 case MLX5_RTE_FLOW_ACTION_TYPE_SHARED_RSS: 3360 translated[shared->index].type = 3361 RTE_FLOW_ACTION_TYPE_RSS; 3362 translated[shared->index].conf = 3363 &shared_action->rss.origin; 3364 break; 3365 default: 3366 mlx5_free(translated); 3367 return rte_flow_error_set 3368 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, 3369 NULL, "invalid shared action type"); 3370 } 3371 } 3372 *translated_actions = translated; 3373 return 0; 3374 } 3375 3376 /** 3377 * Get Shared RSS action from the action list. 3378 * 3379 * @param[in] shared 3380 * Pointer to the list of actions. 3381 * @param[in] shared_n 3382 * Actions list length. 3383 * 3384 * @return 3385 * Pointer to the MLX5 RSS action if exists, otherwise return NULL. 3386 */ 3387 static struct mlx5_shared_action_rss * 3388 flow_get_shared_rss_action(struct mlx5_translated_shared_action *shared, 3389 int shared_n) 3390 { 3391 struct mlx5_translated_shared_action *shared_end; 3392 3393 for (shared_end = shared + shared_n; shared < shared_end; shared++) { 3394 struct rte_flow_shared_action *shared_action; 3395 3396 shared_action = shared->action; 3397 switch (shared_action->type) { 3398 case MLX5_RTE_FLOW_ACTION_TYPE_SHARED_RSS: 3399 __atomic_add_fetch(&shared_action->refcnt, 1, 3400 __ATOMIC_RELAXED); 3401 return &shared_action->rss; 3402 default: 3403 break; 3404 } 3405 } 3406 return NULL; 3407 } 3408 3409 struct rte_flow_shared_action * 3410 mlx5_flow_get_shared_rss(struct rte_flow *flow) 3411 { 3412 if (flow->shared_rss) 3413 return container_of(flow->shared_rss, 3414 struct rte_flow_shared_action, rss); 3415 else 3416 return NULL; 3417 } 3418 3419 static unsigned int 3420 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level) 3421 { 3422 const struct rte_flow_item *item; 3423 unsigned int has_vlan = 0; 3424 3425 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) { 3426 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) { 3427 has_vlan = 1; 3428 break; 3429 } 3430 } 3431 if (has_vlan) 3432 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN : 3433 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN; 3434 return rss_level < 2 ? MLX5_EXPANSION_ROOT : 3435 MLX5_EXPANSION_ROOT_OUTER; 3436 } 3437 3438 /** 3439 * Get layer flags from the prefix flow. 3440 * 3441 * Some flows may be split to several subflows, the prefix subflow gets the 3442 * match items and the suffix sub flow gets the actions. 3443 * Some actions need the user defined match item flags to get the detail for 3444 * the action. 3445 * This function helps the suffix flow to get the item layer flags from prefix 3446 * subflow. 3447 * 3448 * @param[in] dev_flow 3449 * Pointer the created preifx subflow. 3450 * 3451 * @return 3452 * The layers get from prefix subflow. 3453 */ 3454 static inline uint64_t 3455 flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow) 3456 { 3457 uint64_t layers = 0; 3458 3459 /* 3460 * Layers bits could be localization, but usually the compiler will 3461 * help to do the optimization work for source code. 3462 * If no decap actions, use the layers directly. 3463 */ 3464 if (!(dev_flow->act_flags & MLX5_FLOW_ACTION_DECAP)) 3465 return dev_flow->handle->layers; 3466 /* Convert L3 layers with decap action. */ 3467 if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4) 3468 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4; 3469 else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6) 3470 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6; 3471 /* Convert L4 layers with decap action. */ 3472 if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_TCP) 3473 layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP; 3474 else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_UDP) 3475 layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP; 3476 return layers; 3477 } 3478 3479 /** 3480 * Get metadata split action information. 3481 * 3482 * @param[in] actions 3483 * Pointer to the list of actions. 3484 * @param[out] qrss 3485 * Pointer to the return pointer. 3486 * @param[out] qrss_type 3487 * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned 3488 * if no QUEUE/RSS is found. 3489 * @param[out] encap_idx 3490 * Pointer to the index of the encap action if exists, otherwise the last 3491 * action index. 3492 * 3493 * @return 3494 * Total number of actions. 3495 */ 3496 static int 3497 flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[], 3498 const struct rte_flow_action **qrss, 3499 int *encap_idx) 3500 { 3501 const struct rte_flow_action_raw_encap *raw_encap; 3502 int actions_n = 0; 3503 int raw_decap_idx = -1; 3504 3505 *encap_idx = -1; 3506 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 3507 switch (actions->type) { 3508 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP: 3509 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP: 3510 *encap_idx = actions_n; 3511 break; 3512 case RTE_FLOW_ACTION_TYPE_RAW_DECAP: 3513 raw_decap_idx = actions_n; 3514 break; 3515 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: 3516 raw_encap = actions->conf; 3517 if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) 3518 *encap_idx = raw_decap_idx != -1 ? 3519 raw_decap_idx : actions_n; 3520 break; 3521 case RTE_FLOW_ACTION_TYPE_QUEUE: 3522 case RTE_FLOW_ACTION_TYPE_RSS: 3523 *qrss = actions; 3524 break; 3525 default: 3526 break; 3527 } 3528 actions_n++; 3529 } 3530 if (*encap_idx == -1) 3531 *encap_idx = actions_n; 3532 /* Count RTE_FLOW_ACTION_TYPE_END. */ 3533 return actions_n + 1; 3534 } 3535 3536 /** 3537 * Check meter action from the action list. 3538 * 3539 * @param[in] actions 3540 * Pointer to the list of actions. 3541 * @param[out] mtr 3542 * Pointer to the meter exist flag. 3543 * 3544 * @return 3545 * Total number of actions. 3546 */ 3547 static int 3548 flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr) 3549 { 3550 int actions_n = 0; 3551 3552 MLX5_ASSERT(mtr); 3553 *mtr = 0; 3554 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 3555 switch (actions->type) { 3556 case RTE_FLOW_ACTION_TYPE_METER: 3557 *mtr = 1; 3558 break; 3559 default: 3560 break; 3561 } 3562 actions_n++; 3563 } 3564 /* Count RTE_FLOW_ACTION_TYPE_END. */ 3565 return actions_n + 1; 3566 } 3567 3568 /** 3569 * Check if the flow should be split due to hairpin. 3570 * The reason for the split is that in current HW we can't 3571 * support encap and push-vlan on Rx, so if a flow contains 3572 * these actions we move it to Tx. 3573 * 3574 * @param dev 3575 * Pointer to Ethernet device. 3576 * @param[in] attr 3577 * Flow rule attributes. 3578 * @param[in] actions 3579 * Associated actions (list terminated by the END action). 3580 * 3581 * @return 3582 * > 0 the number of actions and the flow should be split, 3583 * 0 when no split required. 3584 */ 3585 static int 3586 flow_check_hairpin_split(struct rte_eth_dev *dev, 3587 const struct rte_flow_attr *attr, 3588 const struct rte_flow_action actions[]) 3589 { 3590 int queue_action = 0; 3591 int action_n = 0; 3592 int split = 0; 3593 const struct rte_flow_action_queue *queue; 3594 const struct rte_flow_action_rss *rss; 3595 const struct rte_flow_action_raw_encap *raw_encap; 3596 const struct rte_eth_hairpin_conf *conf; 3597 3598 if (!attr->ingress) 3599 return 0; 3600 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 3601 switch (actions->type) { 3602 case RTE_FLOW_ACTION_TYPE_QUEUE: 3603 queue = actions->conf; 3604 if (queue == NULL) 3605 return 0; 3606 conf = mlx5_rxq_get_hairpin_conf(dev, queue->index); 3607 if (conf != NULL && !!conf->tx_explicit) 3608 return 0; 3609 queue_action = 1; 3610 action_n++; 3611 break; 3612 case RTE_FLOW_ACTION_TYPE_RSS: 3613 rss = actions->conf; 3614 if (rss == NULL || rss->queue_num == 0) 3615 return 0; 3616 conf = mlx5_rxq_get_hairpin_conf(dev, rss->queue[0]); 3617 if (conf != NULL && !!conf->tx_explicit) 3618 return 0; 3619 queue_action = 1; 3620 action_n++; 3621 break; 3622 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP: 3623 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP: 3624 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: 3625 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID: 3626 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP: 3627 split++; 3628 action_n++; 3629 break; 3630 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: 3631 raw_encap = actions->conf; 3632 if (raw_encap->size > 3633 (sizeof(struct rte_flow_item_eth) + 3634 sizeof(struct rte_flow_item_ipv4))) 3635 split++; 3636 action_n++; 3637 break; 3638 default: 3639 action_n++; 3640 break; 3641 } 3642 } 3643 if (split && queue_action) 3644 return action_n; 3645 return 0; 3646 } 3647 3648 /* Declare flow create/destroy prototype in advance. */ 3649 static uint32_t 3650 flow_list_create(struct rte_eth_dev *dev, uint32_t *list, 3651 const struct rte_flow_attr *attr, 3652 const struct rte_flow_item items[], 3653 const struct rte_flow_action actions[], 3654 bool external, struct rte_flow_error *error); 3655 3656 static void 3657 flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list, 3658 uint32_t flow_idx); 3659 3660 struct mlx5_hlist_entry * 3661 flow_dv_mreg_create_cb(struct mlx5_hlist *list, uint64_t key, 3662 void *cb_ctx) 3663 { 3664 struct rte_eth_dev *dev = list->ctx; 3665 struct mlx5_priv *priv = dev->data->dev_private; 3666 struct mlx5_flow_cb_ctx *ctx = cb_ctx; 3667 struct mlx5_flow_mreg_copy_resource *mcp_res; 3668 struct rte_flow_error *error = ctx->error; 3669 uint32_t idx = 0; 3670 int ret; 3671 uint32_t mark_id = key; 3672 struct rte_flow_attr attr = { 3673 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP, 3674 .ingress = 1, 3675 }; 3676 struct mlx5_rte_flow_item_tag tag_spec = { 3677 .data = mark_id, 3678 }; 3679 struct rte_flow_item items[] = { 3680 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, }, 3681 }; 3682 struct rte_flow_action_mark ftag = { 3683 .id = mark_id, 3684 }; 3685 struct mlx5_flow_action_copy_mreg cp_mreg = { 3686 .dst = REG_B, 3687 .src = REG_NON, 3688 }; 3689 struct rte_flow_action_jump jump = { 3690 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP, 3691 }; 3692 struct rte_flow_action actions[] = { 3693 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, }, 3694 }; 3695 3696 /* Fill the register fileds in the flow. */ 3697 ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error); 3698 if (ret < 0) 3699 return NULL; 3700 tag_spec.id = ret; 3701 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error); 3702 if (ret < 0) 3703 return NULL; 3704 cp_mreg.src = ret; 3705 /* Provide the full width of FLAG specific value. */ 3706 if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT)) 3707 tag_spec.data = MLX5_FLOW_MARK_DEFAULT; 3708 /* Build a new flow. */ 3709 if (mark_id != MLX5_DEFAULT_COPY_ID) { 3710 items[0] = (struct rte_flow_item){ 3711 .type = (enum rte_flow_item_type) 3712 MLX5_RTE_FLOW_ITEM_TYPE_TAG, 3713 .spec = &tag_spec, 3714 }; 3715 items[1] = (struct rte_flow_item){ 3716 .type = RTE_FLOW_ITEM_TYPE_END, 3717 }; 3718 actions[0] = (struct rte_flow_action){ 3719 .type = (enum rte_flow_action_type) 3720 MLX5_RTE_FLOW_ACTION_TYPE_MARK, 3721 .conf = &ftag, 3722 }; 3723 actions[1] = (struct rte_flow_action){ 3724 .type = (enum rte_flow_action_type) 3725 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, 3726 .conf = &cp_mreg, 3727 }; 3728 actions[2] = (struct rte_flow_action){ 3729 .type = RTE_FLOW_ACTION_TYPE_JUMP, 3730 .conf = &jump, 3731 }; 3732 actions[3] = (struct rte_flow_action){ 3733 .type = RTE_FLOW_ACTION_TYPE_END, 3734 }; 3735 } else { 3736 /* Default rule, wildcard match. */ 3737 attr.priority = MLX5_FLOW_PRIO_RSVD; 3738 items[0] = (struct rte_flow_item){ 3739 .type = RTE_FLOW_ITEM_TYPE_END, 3740 }; 3741 actions[0] = (struct rte_flow_action){ 3742 .type = (enum rte_flow_action_type) 3743 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, 3744 .conf = &cp_mreg, 3745 }; 3746 actions[1] = (struct rte_flow_action){ 3747 .type = RTE_FLOW_ACTION_TYPE_JUMP, 3748 .conf = &jump, 3749 }; 3750 actions[2] = (struct rte_flow_action){ 3751 .type = RTE_FLOW_ACTION_TYPE_END, 3752 }; 3753 } 3754 /* Build a new entry. */ 3755 mcp_res = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MCP], &idx); 3756 if (!mcp_res) { 3757 rte_errno = ENOMEM; 3758 return NULL; 3759 } 3760 mcp_res->idx = idx; 3761 /* 3762 * The copy Flows are not included in any list. There 3763 * ones are referenced from other Flows and can not 3764 * be applied, removed, deleted in ardbitrary order 3765 * by list traversing. 3766 */ 3767 mcp_res->rix_flow = flow_list_create(dev, NULL, &attr, items, 3768 actions, false, error); 3769 if (!mcp_res->rix_flow) { 3770 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], idx); 3771 return NULL; 3772 } 3773 return &mcp_res->hlist_ent; 3774 } 3775 3776 /** 3777 * Add a flow of copying flow metadata registers in RX_CP_TBL. 3778 * 3779 * As mark_id is unique, if there's already a registered flow for the mark_id, 3780 * return by increasing the reference counter of the resource. Otherwise, create 3781 * the resource (mcp_res) and flow. 3782 * 3783 * Flow looks like, 3784 * - If ingress port is ANY and reg_c[1] is mark_id, 3785 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL. 3786 * 3787 * For default flow (zero mark_id), flow is like, 3788 * - If ingress port is ANY, 3789 * reg_b := reg_c[0] and jump to RX_ACT_TBL. 3790 * 3791 * @param dev 3792 * Pointer to Ethernet device. 3793 * @param mark_id 3794 * ID of MARK action, zero means default flow for META. 3795 * @param[out] error 3796 * Perform verbose error reporting if not NULL. 3797 * 3798 * @return 3799 * Associated resource on success, NULL otherwise and rte_errno is set. 3800 */ 3801 static struct mlx5_flow_mreg_copy_resource * 3802 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id, 3803 struct rte_flow_error *error) 3804 { 3805 struct mlx5_priv *priv = dev->data->dev_private; 3806 struct mlx5_hlist_entry *entry; 3807 struct mlx5_flow_cb_ctx ctx = { 3808 .dev = dev, 3809 .error = error, 3810 }; 3811 3812 /* Check if already registered. */ 3813 MLX5_ASSERT(priv->mreg_cp_tbl); 3814 entry = mlx5_hlist_register(priv->mreg_cp_tbl, mark_id, &ctx); 3815 if (!entry) 3816 return NULL; 3817 return container_of(entry, struct mlx5_flow_mreg_copy_resource, 3818 hlist_ent); 3819 } 3820 3821 void 3822 flow_dv_mreg_remove_cb(struct mlx5_hlist *list, struct mlx5_hlist_entry *entry) 3823 { 3824 struct mlx5_flow_mreg_copy_resource *mcp_res = 3825 container_of(entry, typeof(*mcp_res), hlist_ent); 3826 struct rte_eth_dev *dev = list->ctx; 3827 struct mlx5_priv *priv = dev->data->dev_private; 3828 3829 MLX5_ASSERT(mcp_res->rix_flow); 3830 flow_list_destroy(dev, NULL, mcp_res->rix_flow); 3831 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], mcp_res->idx); 3832 } 3833 3834 /** 3835 * Release flow in RX_CP_TBL. 3836 * 3837 * @param dev 3838 * Pointer to Ethernet device. 3839 * @flow 3840 * Parent flow for wich copying is provided. 3841 */ 3842 static void 3843 flow_mreg_del_copy_action(struct rte_eth_dev *dev, 3844 struct rte_flow *flow) 3845 { 3846 struct mlx5_flow_mreg_copy_resource *mcp_res; 3847 struct mlx5_priv *priv = dev->data->dev_private; 3848 3849 if (!flow->rix_mreg_copy) 3850 return; 3851 mcp_res = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MCP], 3852 flow->rix_mreg_copy); 3853 if (!mcp_res || !priv->mreg_cp_tbl) 3854 return; 3855 MLX5_ASSERT(mcp_res->rix_flow); 3856 mlx5_hlist_unregister(priv->mreg_cp_tbl, &mcp_res->hlist_ent); 3857 flow->rix_mreg_copy = 0; 3858 } 3859 3860 /** 3861 * Remove the default copy action from RX_CP_TBL. 3862 * 3863 * This functions is called in the mlx5_dev_start(). No thread safe 3864 * is guaranteed. 3865 * 3866 * @param dev 3867 * Pointer to Ethernet device. 3868 */ 3869 static void 3870 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev) 3871 { 3872 struct mlx5_hlist_entry *entry; 3873 struct mlx5_priv *priv = dev->data->dev_private; 3874 3875 /* Check if default flow is registered. */ 3876 if (!priv->mreg_cp_tbl) 3877 return; 3878 entry = mlx5_hlist_lookup(priv->mreg_cp_tbl, 3879 MLX5_DEFAULT_COPY_ID, NULL); 3880 if (!entry) 3881 return; 3882 mlx5_hlist_unregister(priv->mreg_cp_tbl, entry); 3883 } 3884 3885 /** 3886 * Add the default copy action in in RX_CP_TBL. 3887 * 3888 * This functions is called in the mlx5_dev_start(). No thread safe 3889 * is guaranteed. 3890 * 3891 * @param dev 3892 * Pointer to Ethernet device. 3893 * @param[out] error 3894 * Perform verbose error reporting if not NULL. 3895 * 3896 * @return 3897 * 0 for success, negative value otherwise and rte_errno is set. 3898 */ 3899 static int 3900 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev, 3901 struct rte_flow_error *error) 3902 { 3903 struct mlx5_priv *priv = dev->data->dev_private; 3904 struct mlx5_flow_mreg_copy_resource *mcp_res; 3905 3906 /* Check whether extensive metadata feature is engaged. */ 3907 if (!priv->config.dv_flow_en || 3908 priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || 3909 !mlx5_flow_ext_mreg_supported(dev) || 3910 !priv->sh->dv_regc0_mask) 3911 return 0; 3912 /* 3913 * Add default mreg copy flow may be called multiple time, but 3914 * only be called once in stop. Avoid register it twice. 3915 */ 3916 if (mlx5_hlist_lookup(priv->mreg_cp_tbl, MLX5_DEFAULT_COPY_ID, NULL)) 3917 return 0; 3918 mcp_res = flow_mreg_add_copy_action(dev, MLX5_DEFAULT_COPY_ID, error); 3919 if (!mcp_res) 3920 return -rte_errno; 3921 return 0; 3922 } 3923 3924 /** 3925 * Add a flow of copying flow metadata registers in RX_CP_TBL. 3926 * 3927 * All the flow having Q/RSS action should be split by 3928 * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL 3929 * performs the following, 3930 * - CQE->flow_tag := reg_c[1] (MARK) 3931 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META) 3932 * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1] 3933 * but there should be a flow per each MARK ID set by MARK action. 3934 * 3935 * For the aforementioned reason, if there's a MARK action in flow's action 3936 * list, a corresponding flow should be added to the RX_CP_TBL in order to copy 3937 * the MARK ID to CQE's flow_tag like, 3938 * - If reg_c[1] is mark_id, 3939 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL. 3940 * 3941 * For SET_META action which stores value in reg_c[0], as the destination is 3942 * also a flow metadata register (reg_b), adding a default flow is enough. Zero 3943 * MARK ID means the default flow. The default flow looks like, 3944 * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL. 3945 * 3946 * @param dev 3947 * Pointer to Ethernet device. 3948 * @param flow 3949 * Pointer to flow structure. 3950 * @param[in] actions 3951 * Pointer to the list of actions. 3952 * @param[out] error 3953 * Perform verbose error reporting if not NULL. 3954 * 3955 * @return 3956 * 0 on success, negative value otherwise and rte_errno is set. 3957 */ 3958 static int 3959 flow_mreg_update_copy_table(struct rte_eth_dev *dev, 3960 struct rte_flow *flow, 3961 const struct rte_flow_action *actions, 3962 struct rte_flow_error *error) 3963 { 3964 struct mlx5_priv *priv = dev->data->dev_private; 3965 struct mlx5_dev_config *config = &priv->config; 3966 struct mlx5_flow_mreg_copy_resource *mcp_res; 3967 const struct rte_flow_action_mark *mark; 3968 3969 /* Check whether extensive metadata feature is engaged. */ 3970 if (!config->dv_flow_en || 3971 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || 3972 !mlx5_flow_ext_mreg_supported(dev) || 3973 !priv->sh->dv_regc0_mask) 3974 return 0; 3975 /* Find MARK action. */ 3976 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 3977 switch (actions->type) { 3978 case RTE_FLOW_ACTION_TYPE_FLAG: 3979 mcp_res = flow_mreg_add_copy_action 3980 (dev, MLX5_FLOW_MARK_DEFAULT, error); 3981 if (!mcp_res) 3982 return -rte_errno; 3983 flow->rix_mreg_copy = mcp_res->idx; 3984 return 0; 3985 case RTE_FLOW_ACTION_TYPE_MARK: 3986 mark = (const struct rte_flow_action_mark *) 3987 actions->conf; 3988 mcp_res = 3989 flow_mreg_add_copy_action(dev, mark->id, error); 3990 if (!mcp_res) 3991 return -rte_errno; 3992 flow->rix_mreg_copy = mcp_res->idx; 3993 return 0; 3994 default: 3995 break; 3996 } 3997 } 3998 return 0; 3999 } 4000 4001 #define MLX5_MAX_SPLIT_ACTIONS 24 4002 #define MLX5_MAX_SPLIT_ITEMS 24 4003 4004 /** 4005 * Split the hairpin flow. 4006 * Since HW can't support encap and push-vlan on Rx, we move these 4007 * actions to Tx. 4008 * If the count action is after the encap then we also 4009 * move the count action. in this case the count will also measure 4010 * the outer bytes. 4011 * 4012 * @param dev 4013 * Pointer to Ethernet device. 4014 * @param[in] actions 4015 * Associated actions (list terminated by the END action). 4016 * @param[out] actions_rx 4017 * Rx flow actions. 4018 * @param[out] actions_tx 4019 * Tx flow actions.. 4020 * @param[out] pattern_tx 4021 * The pattern items for the Tx flow. 4022 * @param[out] flow_id 4023 * The flow ID connected to this flow. 4024 * 4025 * @return 4026 * 0 on success. 4027 */ 4028 static int 4029 flow_hairpin_split(struct rte_eth_dev *dev, 4030 const struct rte_flow_action actions[], 4031 struct rte_flow_action actions_rx[], 4032 struct rte_flow_action actions_tx[], 4033 struct rte_flow_item pattern_tx[], 4034 uint32_t flow_id) 4035 { 4036 const struct rte_flow_action_raw_encap *raw_encap; 4037 const struct rte_flow_action_raw_decap *raw_decap; 4038 struct mlx5_rte_flow_action_set_tag *set_tag; 4039 struct rte_flow_action *tag_action; 4040 struct mlx5_rte_flow_item_tag *tag_item; 4041 struct rte_flow_item *item; 4042 char *addr; 4043 int encap = 0; 4044 4045 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 4046 switch (actions->type) { 4047 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP: 4048 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP: 4049 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: 4050 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID: 4051 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP: 4052 rte_memcpy(actions_tx, actions, 4053 sizeof(struct rte_flow_action)); 4054 actions_tx++; 4055 break; 4056 case RTE_FLOW_ACTION_TYPE_COUNT: 4057 if (encap) { 4058 rte_memcpy(actions_tx, actions, 4059 sizeof(struct rte_flow_action)); 4060 actions_tx++; 4061 } else { 4062 rte_memcpy(actions_rx, actions, 4063 sizeof(struct rte_flow_action)); 4064 actions_rx++; 4065 } 4066 break; 4067 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: 4068 raw_encap = actions->conf; 4069 if (raw_encap->size > 4070 (sizeof(struct rte_flow_item_eth) + 4071 sizeof(struct rte_flow_item_ipv4))) { 4072 memcpy(actions_tx, actions, 4073 sizeof(struct rte_flow_action)); 4074 actions_tx++; 4075 encap = 1; 4076 } else { 4077 rte_memcpy(actions_rx, actions, 4078 sizeof(struct rte_flow_action)); 4079 actions_rx++; 4080 } 4081 break; 4082 case RTE_FLOW_ACTION_TYPE_RAW_DECAP: 4083 raw_decap = actions->conf; 4084 if (raw_decap->size < 4085 (sizeof(struct rte_flow_item_eth) + 4086 sizeof(struct rte_flow_item_ipv4))) { 4087 memcpy(actions_tx, actions, 4088 sizeof(struct rte_flow_action)); 4089 actions_tx++; 4090 } else { 4091 rte_memcpy(actions_rx, actions, 4092 sizeof(struct rte_flow_action)); 4093 actions_rx++; 4094 } 4095 break; 4096 default: 4097 rte_memcpy(actions_rx, actions, 4098 sizeof(struct rte_flow_action)); 4099 actions_rx++; 4100 break; 4101 } 4102 } 4103 /* Add set meta action and end action for the Rx flow. */ 4104 tag_action = actions_rx; 4105 tag_action->type = (enum rte_flow_action_type) 4106 MLX5_RTE_FLOW_ACTION_TYPE_TAG; 4107 actions_rx++; 4108 rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action)); 4109 actions_rx++; 4110 set_tag = (void *)actions_rx; 4111 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL); 4112 MLX5_ASSERT(set_tag->id > REG_NON); 4113 set_tag->data = flow_id; 4114 tag_action->conf = set_tag; 4115 /* Create Tx item list. */ 4116 rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action)); 4117 addr = (void *)&pattern_tx[2]; 4118 item = pattern_tx; 4119 item->type = (enum rte_flow_item_type) 4120 MLX5_RTE_FLOW_ITEM_TYPE_TAG; 4121 tag_item = (void *)addr; 4122 tag_item->data = flow_id; 4123 tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL); 4124 MLX5_ASSERT(set_tag->id > REG_NON); 4125 item->spec = tag_item; 4126 addr += sizeof(struct mlx5_rte_flow_item_tag); 4127 tag_item = (void *)addr; 4128 tag_item->data = UINT32_MAX; 4129 tag_item->id = UINT16_MAX; 4130 item->mask = tag_item; 4131 item->last = NULL; 4132 item++; 4133 item->type = RTE_FLOW_ITEM_TYPE_END; 4134 return 0; 4135 } 4136 4137 __extension__ 4138 union tunnel_offload_mark { 4139 uint32_t val; 4140 struct { 4141 uint32_t app_reserve:8; 4142 uint32_t table_id:15; 4143 uint32_t transfer:1; 4144 uint32_t _unused_:8; 4145 }; 4146 }; 4147 4148 struct tunnel_default_miss_ctx { 4149 uint16_t *queue; 4150 __extension__ 4151 union { 4152 struct rte_flow_action_rss action_rss; 4153 struct rte_flow_action_queue miss_queue; 4154 struct rte_flow_action_jump miss_jump; 4155 uint8_t raw[0]; 4156 }; 4157 }; 4158 4159 static int 4160 flow_tunnel_add_default_miss(struct rte_eth_dev *dev, 4161 struct rte_flow *flow, 4162 const struct rte_flow_attr *attr, 4163 const struct rte_flow_action *app_actions, 4164 uint32_t flow_idx, 4165 struct tunnel_default_miss_ctx *ctx, 4166 struct rte_flow_error *error) 4167 { 4168 struct mlx5_priv *priv = dev->data->dev_private; 4169 struct mlx5_flow *dev_flow; 4170 struct rte_flow_attr miss_attr = *attr; 4171 const struct mlx5_flow_tunnel *tunnel = app_actions[0].conf; 4172 const struct rte_flow_item miss_items[2] = { 4173 { 4174 .type = RTE_FLOW_ITEM_TYPE_ETH, 4175 .spec = NULL, 4176 .last = NULL, 4177 .mask = NULL 4178 }, 4179 { 4180 .type = RTE_FLOW_ITEM_TYPE_END, 4181 .spec = NULL, 4182 .last = NULL, 4183 .mask = NULL 4184 } 4185 }; 4186 union tunnel_offload_mark mark_id; 4187 struct rte_flow_action_mark miss_mark; 4188 struct rte_flow_action miss_actions[3] = { 4189 [0] = { .type = RTE_FLOW_ACTION_TYPE_MARK, .conf = &miss_mark }, 4190 [2] = { .type = RTE_FLOW_ACTION_TYPE_END, .conf = NULL } 4191 }; 4192 const struct rte_flow_action_jump *jump_data; 4193 uint32_t i, flow_table = 0; /* prevent compilation warning */ 4194 struct flow_grp_info grp_info = { 4195 .external = 1, 4196 .transfer = attr->transfer, 4197 .fdb_def_rule = !!priv->fdb_def_rule, 4198 .std_tbl_fix = 0, 4199 }; 4200 int ret; 4201 4202 if (!attr->transfer) { 4203 uint32_t q_size; 4204 4205 miss_actions[1].type = RTE_FLOW_ACTION_TYPE_RSS; 4206 q_size = priv->reta_idx_n * sizeof(ctx->queue[0]); 4207 ctx->queue = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, q_size, 4208 0, SOCKET_ID_ANY); 4209 if (!ctx->queue) 4210 return rte_flow_error_set 4211 (error, ENOMEM, 4212 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 4213 NULL, "invalid default miss RSS"); 4214 ctx->action_rss.func = RTE_ETH_HASH_FUNCTION_DEFAULT, 4215 ctx->action_rss.level = 0, 4216 ctx->action_rss.types = priv->rss_conf.rss_hf, 4217 ctx->action_rss.key_len = priv->rss_conf.rss_key_len, 4218 ctx->action_rss.queue_num = priv->reta_idx_n, 4219 ctx->action_rss.key = priv->rss_conf.rss_key, 4220 ctx->action_rss.queue = ctx->queue; 4221 if (!priv->reta_idx_n || !priv->rxqs_n) 4222 return rte_flow_error_set 4223 (error, EINVAL, 4224 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 4225 NULL, "invalid port configuration"); 4226 if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)) 4227 ctx->action_rss.types = 0; 4228 for (i = 0; i != priv->reta_idx_n; ++i) 4229 ctx->queue[i] = (*priv->reta_idx)[i]; 4230 } else { 4231 miss_actions[1].type = RTE_FLOW_ACTION_TYPE_JUMP; 4232 ctx->miss_jump.group = MLX5_TNL_MISS_FDB_JUMP_GRP; 4233 } 4234 miss_actions[1].conf = (typeof(miss_actions[1].conf))ctx->raw; 4235 for (; app_actions->type != RTE_FLOW_ACTION_TYPE_JUMP; app_actions++); 4236 jump_data = app_actions->conf; 4237 miss_attr.priority = MLX5_TNL_MISS_RULE_PRIORITY; 4238 miss_attr.group = jump_data->group; 4239 ret = mlx5_flow_group_to_table(dev, tunnel, jump_data->group, 4240 &flow_table, grp_info, error); 4241 if (ret) 4242 return rte_flow_error_set(error, EINVAL, 4243 RTE_FLOW_ERROR_TYPE_ACTION_CONF, 4244 NULL, "invalid tunnel id"); 4245 mark_id.app_reserve = 0; 4246 mark_id.table_id = tunnel_flow_tbl_to_id(flow_table); 4247 mark_id.transfer = !!attr->transfer; 4248 mark_id._unused_ = 0; 4249 miss_mark.id = mark_id.val; 4250 dev_flow = flow_drv_prepare(dev, flow, &miss_attr, 4251 miss_items, miss_actions, flow_idx, error); 4252 if (!dev_flow) 4253 return -rte_errno; 4254 dev_flow->flow = flow; 4255 dev_flow->external = true; 4256 dev_flow->tunnel = tunnel; 4257 /* Subflow object was created, we must include one in the list. */ 4258 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx, 4259 dev_flow->handle, next); 4260 DRV_LOG(DEBUG, 4261 "port %u tunnel type=%d id=%u miss rule priority=%u group=%u", 4262 dev->data->port_id, tunnel->app_tunnel.type, 4263 tunnel->tunnel_id, miss_attr.priority, miss_attr.group); 4264 ret = flow_drv_translate(dev, dev_flow, &miss_attr, miss_items, 4265 miss_actions, error); 4266 if (!ret) 4267 ret = flow_mreg_update_copy_table(dev, flow, miss_actions, 4268 error); 4269 4270 return ret; 4271 } 4272 4273 /** 4274 * The last stage of splitting chain, just creates the subflow 4275 * without any modification. 4276 * 4277 * @param[in] dev 4278 * Pointer to Ethernet device. 4279 * @param[in] flow 4280 * Parent flow structure pointer. 4281 * @param[in, out] sub_flow 4282 * Pointer to return the created subflow, may be NULL. 4283 * @param[in] prefix_layers 4284 * Prefix subflow layers, may be 0. 4285 * @param[in] prefix_mark 4286 * Prefix subflow mark flag, may be 0. 4287 * @param[in] attr 4288 * Flow rule attributes. 4289 * @param[in] items 4290 * Pattern specification (list terminated by the END pattern item). 4291 * @param[in] actions 4292 * Associated actions (list terminated by the END action). 4293 * @param[in] external 4294 * This flow rule is created by request external to PMD. 4295 * @param[in] flow_idx 4296 * This memory pool index to the flow. 4297 * @param[out] error 4298 * Perform verbose error reporting if not NULL. 4299 * @return 4300 * 0 on success, negative value otherwise 4301 */ 4302 static int 4303 flow_create_split_inner(struct rte_eth_dev *dev, 4304 struct rte_flow *flow, 4305 struct mlx5_flow **sub_flow, 4306 uint64_t prefix_layers, 4307 uint32_t prefix_mark, 4308 const struct rte_flow_attr *attr, 4309 const struct rte_flow_item items[], 4310 const struct rte_flow_action actions[], 4311 bool external, uint32_t flow_idx, 4312 struct rte_flow_error *error) 4313 { 4314 struct mlx5_flow *dev_flow; 4315 4316 dev_flow = flow_drv_prepare(dev, flow, attr, items, actions, 4317 flow_idx, error); 4318 if (!dev_flow) 4319 return -rte_errno; 4320 dev_flow->flow = flow; 4321 dev_flow->external = external; 4322 /* Subflow object was created, we must include one in the list. */ 4323 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx, 4324 dev_flow->handle, next); 4325 /* 4326 * If dev_flow is as one of the suffix flow, some actions in suffix 4327 * flow may need some user defined item layer flags, and pass the 4328 * Metadate rxq mark flag to suffix flow as well. 4329 */ 4330 if (prefix_layers) 4331 dev_flow->handle->layers = prefix_layers; 4332 if (prefix_mark) 4333 dev_flow->handle->mark = 1; 4334 if (sub_flow) 4335 *sub_flow = dev_flow; 4336 return flow_drv_translate(dev, dev_flow, attr, items, actions, error); 4337 } 4338 4339 /** 4340 * Split the meter flow. 4341 * 4342 * As meter flow will split to three sub flow, other than meter 4343 * action, the other actions make sense to only meter accepts 4344 * the packet. If it need to be dropped, no other additional 4345 * actions should be take. 4346 * 4347 * One kind of special action which decapsulates the L3 tunnel 4348 * header will be in the prefix sub flow, as not to take the 4349 * L3 tunnel header into account. 4350 * 4351 * @param dev 4352 * Pointer to Ethernet device. 4353 * @param[in] items 4354 * Pattern specification (list terminated by the END pattern item). 4355 * @param[out] sfx_items 4356 * Suffix flow match items (list terminated by the END pattern item). 4357 * @param[in] actions 4358 * Associated actions (list terminated by the END action). 4359 * @param[out] actions_sfx 4360 * Suffix flow actions. 4361 * @param[out] actions_pre 4362 * Prefix flow actions. 4363 * @param[out] pattern_sfx 4364 * The pattern items for the suffix flow. 4365 * @param[out] tag_sfx 4366 * Pointer to suffix flow tag. 4367 * 4368 * @return 4369 * 0 on success. 4370 */ 4371 static int 4372 flow_meter_split_prep(struct rte_eth_dev *dev, 4373 const struct rte_flow_item items[], 4374 struct rte_flow_item sfx_items[], 4375 const struct rte_flow_action actions[], 4376 struct rte_flow_action actions_sfx[], 4377 struct rte_flow_action actions_pre[]) 4378 { 4379 struct mlx5_priv *priv = dev->data->dev_private; 4380 struct rte_flow_action *tag_action = NULL; 4381 struct rte_flow_item *tag_item; 4382 struct mlx5_rte_flow_action_set_tag *set_tag; 4383 struct rte_flow_error error; 4384 const struct rte_flow_action_raw_encap *raw_encap; 4385 const struct rte_flow_action_raw_decap *raw_decap; 4386 struct mlx5_rte_flow_item_tag *tag_spec; 4387 struct mlx5_rte_flow_item_tag *tag_mask; 4388 uint32_t tag_id = 0; 4389 bool copy_vlan = false; 4390 4391 /* Prepare the actions for prefix and suffix flow. */ 4392 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 4393 struct rte_flow_action **action_cur = NULL; 4394 4395 switch (actions->type) { 4396 case RTE_FLOW_ACTION_TYPE_METER: 4397 /* Add the extra tag action first. */ 4398 tag_action = actions_pre; 4399 tag_action->type = (enum rte_flow_action_type) 4400 MLX5_RTE_FLOW_ACTION_TYPE_TAG; 4401 actions_pre++; 4402 action_cur = &actions_pre; 4403 break; 4404 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP: 4405 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP: 4406 action_cur = &actions_pre; 4407 break; 4408 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: 4409 raw_encap = actions->conf; 4410 if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE) 4411 action_cur = &actions_pre; 4412 break; 4413 case RTE_FLOW_ACTION_TYPE_RAW_DECAP: 4414 raw_decap = actions->conf; 4415 if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE) 4416 action_cur = &actions_pre; 4417 break; 4418 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: 4419 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID: 4420 copy_vlan = true; 4421 break; 4422 default: 4423 break; 4424 } 4425 if (!action_cur) 4426 action_cur = &actions_sfx; 4427 memcpy(*action_cur, actions, sizeof(struct rte_flow_action)); 4428 (*action_cur)++; 4429 } 4430 /* Add end action to the actions. */ 4431 actions_sfx->type = RTE_FLOW_ACTION_TYPE_END; 4432 actions_pre->type = RTE_FLOW_ACTION_TYPE_END; 4433 actions_pre++; 4434 /* Set the tag. */ 4435 set_tag = (void *)actions_pre; 4436 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error); 4437 mlx5_ipool_malloc(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], 4438 &tag_id); 4439 if (tag_id >= (1 << (sizeof(tag_id) * 8 - MLX5_MTR_COLOR_BITS))) { 4440 DRV_LOG(ERR, "Port %u meter flow id exceed max limit.", 4441 dev->data->port_id); 4442 mlx5_ipool_free(priv->sh->ipool 4443 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], tag_id); 4444 return 0; 4445 } else if (!tag_id) { 4446 return 0; 4447 } 4448 set_tag->data = tag_id << MLX5_MTR_COLOR_BITS; 4449 assert(tag_action); 4450 tag_action->conf = set_tag; 4451 /* Prepare the suffix subflow items. */ 4452 tag_item = sfx_items++; 4453 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) { 4454 int item_type = items->type; 4455 4456 switch (item_type) { 4457 case RTE_FLOW_ITEM_TYPE_PORT_ID: 4458 memcpy(sfx_items, items, sizeof(*sfx_items)); 4459 sfx_items++; 4460 break; 4461 case RTE_FLOW_ITEM_TYPE_VLAN: 4462 if (copy_vlan) { 4463 memcpy(sfx_items, items, sizeof(*sfx_items)); 4464 /* 4465 * Convert to internal match item, it is used 4466 * for vlan push and set vid. 4467 */ 4468 sfx_items->type = (enum rte_flow_item_type) 4469 MLX5_RTE_FLOW_ITEM_TYPE_VLAN; 4470 sfx_items++; 4471 } 4472 break; 4473 default: 4474 break; 4475 } 4476 } 4477 sfx_items->type = RTE_FLOW_ITEM_TYPE_END; 4478 sfx_items++; 4479 tag_spec = (struct mlx5_rte_flow_item_tag *)sfx_items; 4480 tag_spec->data = tag_id << MLX5_MTR_COLOR_BITS; 4481 tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error); 4482 tag_mask = tag_spec + 1; 4483 tag_mask->data = 0xffffff00; 4484 tag_item->type = (enum rte_flow_item_type) 4485 MLX5_RTE_FLOW_ITEM_TYPE_TAG; 4486 tag_item->spec = tag_spec; 4487 tag_item->last = NULL; 4488 tag_item->mask = tag_mask; 4489 return tag_id; 4490 } 4491 4492 /** 4493 * Split action list having QUEUE/RSS for metadata register copy. 4494 * 4495 * Once Q/RSS action is detected in user's action list, the flow action 4496 * should be split in order to copy metadata registers, which will happen in 4497 * RX_CP_TBL like, 4498 * - CQE->flow_tag := reg_c[1] (MARK) 4499 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META) 4500 * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL. 4501 * This is because the last action of each flow must be a terminal action 4502 * (QUEUE, RSS or DROP). 4503 * 4504 * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is 4505 * stored and kept in the mlx5_flow structure per each sub_flow. 4506 * 4507 * The Q/RSS action is replaced with, 4508 * - SET_TAG, setting the allocated flow ID to reg_c[2]. 4509 * And the following JUMP action is added at the end, 4510 * - JUMP, to RX_CP_TBL. 4511 * 4512 * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by 4513 * flow_create_split_metadata() routine. The flow will look like, 4514 * - If flow ID matches (reg_c[2]), perform Q/RSS. 4515 * 4516 * @param dev 4517 * Pointer to Ethernet device. 4518 * @param[out] split_actions 4519 * Pointer to store split actions to jump to CP_TBL. 4520 * @param[in] actions 4521 * Pointer to the list of original flow actions. 4522 * @param[in] qrss 4523 * Pointer to the Q/RSS action. 4524 * @param[in] actions_n 4525 * Number of original actions. 4526 * @param[out] error 4527 * Perform verbose error reporting if not NULL. 4528 * 4529 * @return 4530 * non-zero unique flow_id on success, otherwise 0 and 4531 * error/rte_error are set. 4532 */ 4533 static uint32_t 4534 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev, 4535 struct rte_flow_action *split_actions, 4536 const struct rte_flow_action *actions, 4537 const struct rte_flow_action *qrss, 4538 int actions_n, struct rte_flow_error *error) 4539 { 4540 struct mlx5_priv *priv = dev->data->dev_private; 4541 struct mlx5_rte_flow_action_set_tag *set_tag; 4542 struct rte_flow_action_jump *jump; 4543 const int qrss_idx = qrss - actions; 4544 uint32_t flow_id = 0; 4545 int ret = 0; 4546 4547 /* 4548 * Given actions will be split 4549 * - Replace QUEUE/RSS action with SET_TAG to set flow ID. 4550 * - Add jump to mreg CP_TBL. 4551 * As a result, there will be one more action. 4552 */ 4553 ++actions_n; 4554 memcpy(split_actions, actions, sizeof(*split_actions) * actions_n); 4555 set_tag = (void *)(split_actions + actions_n); 4556 /* 4557 * If tag action is not set to void(it means we are not the meter 4558 * suffix flow), add the tag action. Since meter suffix flow already 4559 * has the tag added. 4560 */ 4561 if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) { 4562 /* 4563 * Allocate the new subflow ID. This one is unique within 4564 * device and not shared with representors. Otherwise, 4565 * we would have to resolve multi-thread access synch 4566 * issue. Each flow on the shared device is appended 4567 * with source vport identifier, so the resulting 4568 * flows will be unique in the shared (by master and 4569 * representors) domain even if they have coinciding 4570 * IDs. 4571 */ 4572 mlx5_ipool_malloc(priv->sh->ipool 4573 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &flow_id); 4574 if (!flow_id) 4575 return rte_flow_error_set(error, ENOMEM, 4576 RTE_FLOW_ERROR_TYPE_ACTION, 4577 NULL, "can't allocate id " 4578 "for split Q/RSS subflow"); 4579 /* Internal SET_TAG action to set flow ID. */ 4580 *set_tag = (struct mlx5_rte_flow_action_set_tag){ 4581 .data = flow_id, 4582 }; 4583 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error); 4584 if (ret < 0) 4585 return ret; 4586 set_tag->id = ret; 4587 /* Construct new actions array. */ 4588 /* Replace QUEUE/RSS action. */ 4589 split_actions[qrss_idx] = (struct rte_flow_action){ 4590 .type = (enum rte_flow_action_type) 4591 MLX5_RTE_FLOW_ACTION_TYPE_TAG, 4592 .conf = set_tag, 4593 }; 4594 } 4595 /* JUMP action to jump to mreg copy table (CP_TBL). */ 4596 jump = (void *)(set_tag + 1); 4597 *jump = (struct rte_flow_action_jump){ 4598 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP, 4599 }; 4600 split_actions[actions_n - 2] = (struct rte_flow_action){ 4601 .type = RTE_FLOW_ACTION_TYPE_JUMP, 4602 .conf = jump, 4603 }; 4604 split_actions[actions_n - 1] = (struct rte_flow_action){ 4605 .type = RTE_FLOW_ACTION_TYPE_END, 4606 }; 4607 return flow_id; 4608 } 4609 4610 /** 4611 * Extend the given action list for Tx metadata copy. 4612 * 4613 * Copy the given action list to the ext_actions and add flow metadata register 4614 * copy action in order to copy reg_a set by WQE to reg_c[0]. 4615 * 4616 * @param[out] ext_actions 4617 * Pointer to the extended action list. 4618 * @param[in] actions 4619 * Pointer to the list of actions. 4620 * @param[in] actions_n 4621 * Number of actions in the list. 4622 * @param[out] error 4623 * Perform verbose error reporting if not NULL. 4624 * @param[in] encap_idx 4625 * The encap action inndex. 4626 * 4627 * @return 4628 * 0 on success, negative value otherwise 4629 */ 4630 static int 4631 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev, 4632 struct rte_flow_action *ext_actions, 4633 const struct rte_flow_action *actions, 4634 int actions_n, struct rte_flow_error *error, 4635 int encap_idx) 4636 { 4637 struct mlx5_flow_action_copy_mreg *cp_mreg = 4638 (struct mlx5_flow_action_copy_mreg *) 4639 (ext_actions + actions_n + 1); 4640 int ret; 4641 4642 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error); 4643 if (ret < 0) 4644 return ret; 4645 cp_mreg->dst = ret; 4646 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error); 4647 if (ret < 0) 4648 return ret; 4649 cp_mreg->src = ret; 4650 if (encap_idx != 0) 4651 memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx); 4652 if (encap_idx == actions_n - 1) { 4653 ext_actions[actions_n - 1] = (struct rte_flow_action){ 4654 .type = (enum rte_flow_action_type) 4655 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, 4656 .conf = cp_mreg, 4657 }; 4658 ext_actions[actions_n] = (struct rte_flow_action){ 4659 .type = RTE_FLOW_ACTION_TYPE_END, 4660 }; 4661 } else { 4662 ext_actions[encap_idx] = (struct rte_flow_action){ 4663 .type = (enum rte_flow_action_type) 4664 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, 4665 .conf = cp_mreg, 4666 }; 4667 memcpy(ext_actions + encap_idx + 1, actions + encap_idx, 4668 sizeof(*ext_actions) * (actions_n - encap_idx)); 4669 } 4670 return 0; 4671 } 4672 4673 /** 4674 * Check the match action from the action list. 4675 * 4676 * @param[in] actions 4677 * Pointer to the list of actions. 4678 * @param[in] attr 4679 * Flow rule attributes. 4680 * @param[in] action 4681 * The action to be check if exist. 4682 * @param[out] match_action_pos 4683 * Pointer to the position of the matched action if exists, otherwise is -1. 4684 * @param[out] qrss_action_pos 4685 * Pointer to the position of the Queue/RSS action if exists, otherwise is -1. 4686 * 4687 * @return 4688 * > 0 the total number of actions. 4689 * 0 if not found match action in action list. 4690 */ 4691 static int 4692 flow_check_match_action(const struct rte_flow_action actions[], 4693 const struct rte_flow_attr *attr, 4694 enum rte_flow_action_type action, 4695 int *match_action_pos, int *qrss_action_pos) 4696 { 4697 const struct rte_flow_action_sample *sample; 4698 int actions_n = 0; 4699 int jump_flag = 0; 4700 uint32_t ratio = 0; 4701 int sub_type = 0; 4702 int flag = 0; 4703 4704 *match_action_pos = -1; 4705 *qrss_action_pos = -1; 4706 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { 4707 if (actions->type == action) { 4708 flag = 1; 4709 *match_action_pos = actions_n; 4710 } 4711 if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE || 4712 actions->type == RTE_FLOW_ACTION_TYPE_RSS) 4713 *qrss_action_pos = actions_n; 4714 if (actions->type == RTE_FLOW_ACTION_TYPE_JUMP) 4715 jump_flag = 1; 4716 if (actions->type == RTE_FLOW_ACTION_TYPE_SAMPLE) { 4717 sample = actions->conf; 4718 ratio = sample->ratio; 4719 sub_type = ((const struct rte_flow_action *) 4720 (sample->actions))->type; 4721 } 4722 actions_n++; 4723 } 4724 if (flag && action == RTE_FLOW_ACTION_TYPE_SAMPLE && attr->transfer) { 4725 if (ratio == 1) { 4726 /* JUMP Action not support for Mirroring; 4727 * Mirroring support multi-destination; 4728 */ 4729 if (!jump_flag && sub_type != RTE_FLOW_ACTION_TYPE_END) 4730 flag = 0; 4731 } 4732 } 4733 /* Count RTE_FLOW_ACTION_TYPE_END. */ 4734 return flag ? actions_n + 1 : 0; 4735 } 4736 4737 #define SAMPLE_SUFFIX_ITEM 2 4738 4739 /** 4740 * Split the sample flow. 4741 * 4742 * As sample flow will split to two sub flow, sample flow with 4743 * sample action, the other actions will move to new suffix flow. 4744 * 4745 * Also add unique tag id with tag action in the sample flow, 4746 * the same tag id will be as match in the suffix flow. 4747 * 4748 * @param dev 4749 * Pointer to Ethernet device. 4750 * @param[in] fdb_tx 4751 * FDB egress flow flag. 4752 * @param[out] sfx_items 4753 * Suffix flow match items (list terminated by the END pattern item). 4754 * @param[in] actions 4755 * Associated actions (list terminated by the END action). 4756 * @param[out] actions_sfx 4757 * Suffix flow actions. 4758 * @param[out] actions_pre 4759 * Prefix flow actions. 4760 * @param[in] actions_n 4761 * The total number of actions. 4762 * @param[in] sample_action_pos 4763 * The sample action position. 4764 * @param[in] qrss_action_pos 4765 * The Queue/RSS action position. 4766 * @param[out] error 4767 * Perform verbose error reporting if not NULL. 4768 * 4769 * @return 4770 * 0 on success, or unique flow_id, a negative errno value 4771 * otherwise and rte_errno is set. 4772 */ 4773 static int 4774 flow_sample_split_prep(struct rte_eth_dev *dev, 4775 uint32_t fdb_tx, 4776 struct rte_flow_item sfx_items[], 4777 const struct rte_flow_action actions[], 4778 struct rte_flow_action actions_sfx[], 4779 struct rte_flow_action actions_pre[], 4780 int actions_n, 4781 int sample_action_pos, 4782 int qrss_action_pos, 4783 struct rte_flow_error *error) 4784 { 4785 struct mlx5_priv *priv = dev->data->dev_private; 4786 struct mlx5_rte_flow_action_set_tag *set_tag; 4787 struct mlx5_rte_flow_item_tag *tag_spec; 4788 struct mlx5_rte_flow_item_tag *tag_mask; 4789 uint32_t tag_id = 0; 4790 int index; 4791 int ret; 4792 4793 if (sample_action_pos < 0) 4794 return rte_flow_error_set(error, EINVAL, 4795 RTE_FLOW_ERROR_TYPE_ACTION, 4796 NULL, "invalid position of sample " 4797 "action in list"); 4798 if (!fdb_tx) { 4799 /* Prepare the prefix tag action. */ 4800 set_tag = (void *)(actions_pre + actions_n + 1); 4801 ret = mlx5_flow_get_reg_id(dev, MLX5_APP_TAG, 0, error); 4802 if (ret < 0) 4803 return ret; 4804 set_tag->id = ret; 4805 mlx5_ipool_malloc(priv->sh->ipool 4806 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id); 4807 set_tag->data = tag_id; 4808 /* Prepare the suffix subflow items. */ 4809 tag_spec = (void *)(sfx_items + SAMPLE_SUFFIX_ITEM); 4810 tag_spec->data = tag_id; 4811 tag_spec->id = set_tag->id; 4812 tag_mask = tag_spec + 1; 4813 tag_mask->data = UINT32_MAX; 4814 sfx_items[0] = (struct rte_flow_item){ 4815 .type = (enum rte_flow_item_type) 4816 MLX5_RTE_FLOW_ITEM_TYPE_TAG, 4817 .spec = tag_spec, 4818 .last = NULL, 4819 .mask = tag_mask, 4820 }; 4821 sfx_items[1] = (struct rte_flow_item){ 4822 .type = (enum rte_flow_item_type) 4823 RTE_FLOW_ITEM_TYPE_END, 4824 }; 4825 } 4826 /* Prepare the actions for prefix and suffix flow. */ 4827 if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) { 4828 index = qrss_action_pos; 4829 /* Put the preceding the Queue/RSS action into prefix flow. */ 4830 if (index != 0) 4831 memcpy(actions_pre, actions, 4832 sizeof(struct rte_flow_action) * index); 4833 /* Put others preceding the sample action into prefix flow. */ 4834 if (sample_action_pos > index + 1) 4835 memcpy(actions_pre + index, actions + index + 1, 4836 sizeof(struct rte_flow_action) * 4837 (sample_action_pos - index - 1)); 4838 index = sample_action_pos - 1; 4839 /* Put Queue/RSS action into Suffix flow. */ 4840 memcpy(actions_sfx, actions + qrss_action_pos, 4841 sizeof(struct rte_flow_action)); 4842 actions_sfx++; 4843 } else { 4844 index = sample_action_pos; 4845 if (index != 0) 4846 memcpy(actions_pre, actions, 4847 sizeof(struct rte_flow_action) * index); 4848 } 4849 /* Add the extra tag action for NIC-RX and E-Switch ingress. */ 4850 if (!fdb_tx) { 4851 actions_pre[index++] = 4852 (struct rte_flow_action){ 4853 .type = (enum rte_flow_action_type) 4854 MLX5_RTE_FLOW_ACTION_TYPE_TAG, 4855 .conf = set_tag, 4856 }; 4857 } 4858 memcpy(actions_pre + index, actions + sample_action_pos, 4859 sizeof(struct rte_flow_action)); 4860 index += 1; 4861 actions_pre[index] = (struct rte_flow_action){ 4862 .type = (enum rte_flow_action_type) 4863 RTE_FLOW_ACTION_TYPE_END, 4864 }; 4865 /* Put the actions after sample into Suffix flow. */ 4866 memcpy(actions_sfx, actions + sample_action_pos + 1, 4867 sizeof(struct rte_flow_action) * 4868 (actions_n - sample_action_pos - 1)); 4869 return tag_id; 4870 } 4871 4872 /** 4873 * The splitting for metadata feature. 4874 * 4875 * - Q/RSS action on NIC Rx should be split in order to pass by 4876 * the mreg copy table (RX_CP_TBL) and then it jumps to the 4877 * action table (RX_ACT_TBL) which has the split Q/RSS action. 4878 * 4879 * - All the actions on NIC Tx should have a mreg copy action to 4880 * copy reg_a from WQE to reg_c[0]. 4881 * 4882 * @param dev 4883 * Pointer to Ethernet device. 4884 * @param[in] flow 4885 * Parent flow structure pointer. 4886 * @param[in] prefix_layers 4887 * Prefix flow layer flags. 4888 * @param[in] prefix_mark 4889 * Prefix subflow mark flag, may be 0. 4890 * @param[in] attr 4891 * Flow rule attributes. 4892 * @param[in] items 4893 * Pattern specification (list terminated by the END pattern item). 4894 * @param[in] actions 4895 * Associated actions (list terminated by the END action). 4896 * @param[in] external 4897 * This flow rule is created by request external to PMD. 4898 * @param[in] flow_idx 4899 * This memory pool index to the flow. 4900 * @param[out] error 4901 * Perform verbose error reporting if not NULL. 4902 * @return 4903 * 0 on success, negative value otherwise 4904 */ 4905 static int 4906 flow_create_split_metadata(struct rte_eth_dev *dev, 4907 struct rte_flow *flow, 4908 uint64_t prefix_layers, 4909 uint32_t prefix_mark, 4910 const struct rte_flow_attr *attr, 4911 const struct rte_flow_item items[], 4912 const struct rte_flow_action actions[], 4913 bool external, uint32_t flow_idx, 4914 struct rte_flow_error *error) 4915 { 4916 struct mlx5_priv *priv = dev->data->dev_private; 4917 struct mlx5_dev_config *config = &priv->config; 4918 const struct rte_flow_action *qrss = NULL; 4919 struct rte_flow_action *ext_actions = NULL; 4920 struct mlx5_flow *dev_flow = NULL; 4921 uint32_t qrss_id = 0; 4922 int mtr_sfx = 0; 4923 size_t act_size; 4924 int actions_n; 4925 int encap_idx; 4926 int ret; 4927 4928 /* Check whether extensive metadata feature is engaged. */ 4929 if (!config->dv_flow_en || 4930 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || 4931 !mlx5_flow_ext_mreg_supported(dev)) 4932 return flow_create_split_inner(dev, flow, NULL, prefix_layers, 4933 prefix_mark, attr, items, 4934 actions, external, flow_idx, 4935 error); 4936 actions_n = flow_parse_metadata_split_actions_info(actions, &qrss, 4937 &encap_idx); 4938 if (qrss) { 4939 /* Exclude hairpin flows from splitting. */ 4940 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) { 4941 const struct rte_flow_action_queue *queue; 4942 4943 queue = qrss->conf; 4944 if (mlx5_rxq_get_type(dev, queue->index) == 4945 MLX5_RXQ_TYPE_HAIRPIN) 4946 qrss = NULL; 4947 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) { 4948 const struct rte_flow_action_rss *rss; 4949 4950 rss = qrss->conf; 4951 if (mlx5_rxq_get_type(dev, rss->queue[0]) == 4952 MLX5_RXQ_TYPE_HAIRPIN) 4953 qrss = NULL; 4954 } 4955 } 4956 if (qrss) { 4957 /* Check if it is in meter suffix table. */ 4958 mtr_sfx = attr->group == (attr->transfer ? 4959 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) : 4960 MLX5_FLOW_TABLE_LEVEL_SUFFIX); 4961 /* 4962 * Q/RSS action on NIC Rx should be split in order to pass by 4963 * the mreg copy table (RX_CP_TBL) and then it jumps to the 4964 * action table (RX_ACT_TBL) which has the split Q/RSS action. 4965 */ 4966 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) + 4967 sizeof(struct rte_flow_action_set_tag) + 4968 sizeof(struct rte_flow_action_jump); 4969 ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0, 4970 SOCKET_ID_ANY); 4971 if (!ext_actions) 4972 return rte_flow_error_set(error, ENOMEM, 4973 RTE_FLOW_ERROR_TYPE_ACTION, 4974 NULL, "no memory to split " 4975 "metadata flow"); 4976 /* 4977 * If we are the suffix flow of meter, tag already exist. 4978 * Set the tag action to void. 4979 */ 4980 if (mtr_sfx) 4981 ext_actions[qrss - actions].type = 4982 RTE_FLOW_ACTION_TYPE_VOID; 4983 else 4984 ext_actions[qrss - actions].type = 4985 (enum rte_flow_action_type) 4986 MLX5_RTE_FLOW_ACTION_TYPE_TAG; 4987 /* 4988 * Create the new actions list with removed Q/RSS action 4989 * and appended set tag and jump to register copy table 4990 * (RX_CP_TBL). We should preallocate unique tag ID here 4991 * in advance, because it is needed for set tag action. 4992 */ 4993 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions, 4994 qrss, actions_n, error); 4995 if (!mtr_sfx && !qrss_id) { 4996 ret = -rte_errno; 4997 goto exit; 4998 } 4999 } else if (attr->egress && !attr->transfer) { 5000 /* 5001 * All the actions on NIC Tx should have a metadata register 5002 * copy action to copy reg_a from WQE to reg_c[meta] 5003 */ 5004 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) + 5005 sizeof(struct mlx5_flow_action_copy_mreg); 5006 ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0, 5007 SOCKET_ID_ANY); 5008 if (!ext_actions) 5009 return rte_flow_error_set(error, ENOMEM, 5010 RTE_FLOW_ERROR_TYPE_ACTION, 5011 NULL, "no memory to split " 5012 "metadata flow"); 5013 /* Create the action list appended with copy register. */ 5014 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions, 5015 actions_n, error, encap_idx); 5016 if (ret < 0) 5017 goto exit; 5018 } 5019 /* Add the unmodified original or prefix subflow. */ 5020 ret = flow_create_split_inner(dev, flow, &dev_flow, prefix_layers, 5021 prefix_mark, attr, 5022 items, ext_actions ? ext_actions : 5023 actions, external, flow_idx, error); 5024 if (ret < 0) 5025 goto exit; 5026 MLX5_ASSERT(dev_flow); 5027 if (qrss) { 5028 const struct rte_flow_attr q_attr = { 5029 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP, 5030 .ingress = 1, 5031 }; 5032 /* Internal PMD action to set register. */ 5033 struct mlx5_rte_flow_item_tag q_tag_spec = { 5034 .data = qrss_id, 5035 .id = REG_NON, 5036 }; 5037 struct rte_flow_item q_items[] = { 5038 { 5039 .type = (enum rte_flow_item_type) 5040 MLX5_RTE_FLOW_ITEM_TYPE_TAG, 5041 .spec = &q_tag_spec, 5042 .last = NULL, 5043 .mask = NULL, 5044 }, 5045 { 5046 .type = RTE_FLOW_ITEM_TYPE_END, 5047 }, 5048 }; 5049 struct rte_flow_action q_actions[] = { 5050 { 5051 .type = qrss->type, 5052 .conf = qrss->conf, 5053 }, 5054 { 5055 .type = RTE_FLOW_ACTION_TYPE_END, 5056 }, 5057 }; 5058 uint64_t layers = flow_get_prefix_layer_flags(dev_flow); 5059 5060 /* 5061 * Configure the tag item only if there is no meter subflow. 5062 * Since tag is already marked in the meter suffix subflow 5063 * we can just use the meter suffix items as is. 5064 */ 5065 if (qrss_id) { 5066 /* Not meter subflow. */ 5067 MLX5_ASSERT(!mtr_sfx); 5068 /* 5069 * Put unique id in prefix flow due to it is destroyed 5070 * after suffix flow and id will be freed after there 5071 * is no actual flows with this id and identifier 5072 * reallocation becomes possible (for example, for 5073 * other flows in other threads). 5074 */ 5075 dev_flow->handle->split_flow_id = qrss_id; 5076 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, 5077 error); 5078 if (ret < 0) 5079 goto exit; 5080 q_tag_spec.id = ret; 5081 } 5082 dev_flow = NULL; 5083 /* Add suffix subflow to execute Q/RSS. */ 5084 ret = flow_create_split_inner(dev, flow, &dev_flow, layers, 0, 5085 &q_attr, mtr_sfx ? items : 5086 q_items, q_actions, 5087 external, flow_idx, error); 5088 if (ret < 0) 5089 goto exit; 5090 /* qrss ID should be freed if failed. */ 5091 qrss_id = 0; 5092 MLX5_ASSERT(dev_flow); 5093 } 5094 5095 exit: 5096 /* 5097 * We do not destroy the partially created sub_flows in case of error. 5098 * These ones are included into parent flow list and will be destroyed 5099 * by flow_drv_destroy. 5100 */ 5101 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], 5102 qrss_id); 5103 mlx5_free(ext_actions); 5104 return ret; 5105 } 5106 5107 /** 5108 * The splitting for meter feature. 5109 * 5110 * - The meter flow will be split to two flows as prefix and 5111 * suffix flow. The packets make sense only it pass the prefix 5112 * meter action. 5113 * 5114 * - Reg_C_5 is used for the packet to match betweend prefix and 5115 * suffix flow. 5116 * 5117 * @param dev 5118 * Pointer to Ethernet device. 5119 * @param[in] flow 5120 * Parent flow structure pointer. 5121 * @param[in] prefix_layers 5122 * Prefix subflow layers, may be 0. 5123 * @param[in] prefix_mark 5124 * Prefix subflow mark flag, may be 0. 5125 * @param[in] attr 5126 * Flow rule attributes. 5127 * @param[in] items 5128 * Pattern specification (list terminated by the END pattern item). 5129 * @param[in] actions 5130 * Associated actions (list terminated by the END action). 5131 * @param[in] external 5132 * This flow rule is created by request external to PMD. 5133 * @param[in] flow_idx 5134 * This memory pool index to the flow. 5135 * @param[out] error 5136 * Perform verbose error reporting if not NULL. 5137 * @return 5138 * 0 on success, negative value otherwise 5139 */ 5140 static int 5141 flow_create_split_meter(struct rte_eth_dev *dev, 5142 struct rte_flow *flow, 5143 uint64_t prefix_layers, 5144 uint32_t prefix_mark, 5145 const struct rte_flow_attr *attr, 5146 const struct rte_flow_item items[], 5147 const struct rte_flow_action actions[], 5148 bool external, uint32_t flow_idx, 5149 struct rte_flow_error *error) 5150 { 5151 struct mlx5_priv *priv = dev->data->dev_private; 5152 struct rte_flow_action *sfx_actions = NULL; 5153 struct rte_flow_action *pre_actions = NULL; 5154 struct rte_flow_item *sfx_items = NULL; 5155 struct mlx5_flow *dev_flow = NULL; 5156 struct rte_flow_attr sfx_attr = *attr; 5157 uint32_t mtr = 0; 5158 uint32_t mtr_tag_id = 0; 5159 size_t act_size; 5160 size_t item_size; 5161 int actions_n = 0; 5162 int ret; 5163 5164 if (priv->mtr_en) 5165 actions_n = flow_check_meter_action(actions, &mtr); 5166 if (mtr) { 5167 /* The five prefix actions: meter, decap, encap, tag, end. */ 5168 act_size = sizeof(struct rte_flow_action) * (actions_n + 5) + 5169 sizeof(struct mlx5_rte_flow_action_set_tag); 5170 /* tag, vlan, port id, end. */ 5171 #define METER_SUFFIX_ITEM 4 5172 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM + 5173 sizeof(struct mlx5_rte_flow_item_tag) * 2; 5174 sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + item_size), 5175 0, SOCKET_ID_ANY); 5176 if (!sfx_actions) 5177 return rte_flow_error_set(error, ENOMEM, 5178 RTE_FLOW_ERROR_TYPE_ACTION, 5179 NULL, "no memory to split " 5180 "meter flow"); 5181 sfx_items = (struct rte_flow_item *)((char *)sfx_actions + 5182 act_size); 5183 pre_actions = sfx_actions + actions_n; 5184 mtr_tag_id = flow_meter_split_prep(dev, items, sfx_items, 5185 actions, sfx_actions, 5186 pre_actions); 5187 if (!mtr_tag_id) { 5188 ret = -rte_errno; 5189 goto exit; 5190 } 5191 /* Add the prefix subflow. */ 5192 ret = flow_create_split_inner(dev, flow, &dev_flow, 5193 prefix_layers, 0, 5194 attr, items, 5195 pre_actions, external, 5196 flow_idx, error); 5197 if (ret) { 5198 ret = -rte_errno; 5199 goto exit; 5200 } 5201 dev_flow->handle->split_flow_id = mtr_tag_id; 5202 /* Setting the sfx group atrr. */ 5203 sfx_attr.group = sfx_attr.transfer ? 5204 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) : 5205 MLX5_FLOW_TABLE_LEVEL_SUFFIX; 5206 } 5207 /* Add the prefix subflow. */ 5208 ret = flow_create_split_metadata(dev, flow, dev_flow ? 5209 flow_get_prefix_layer_flags(dev_flow) : 5210 prefix_layers, dev_flow ? 5211 dev_flow->handle->mark : prefix_mark, 5212 &sfx_attr, sfx_items ? 5213 sfx_items : items, 5214 sfx_actions ? sfx_actions : actions, 5215 external, flow_idx, error); 5216 exit: 5217 if (sfx_actions) 5218 mlx5_free(sfx_actions); 5219 return ret; 5220 } 5221 5222 /** 5223 * The splitting for sample feature. 5224 * 5225 * Once Sample action is detected in the action list, the flow actions should 5226 * be split into prefix sub flow and suffix sub flow. 5227 * 5228 * The original items remain in the prefix sub flow, all actions preceding the 5229 * sample action and the sample action itself will be copied to the prefix 5230 * sub flow, the actions following the sample action will be copied to the 5231 * suffix sub flow, Queue action always be located in the suffix sub flow. 5232 * 5233 * In order to make the packet from prefix sub flow matches with suffix sub 5234 * flow, an extra tag action be added into prefix sub flow, and the suffix sub 5235 * flow uses tag item with the unique flow id. 5236 * 5237 * @param dev 5238 * Pointer to Ethernet device. 5239 * @param[in] flow 5240 * Parent flow structure pointer. 5241 * @param[in] attr 5242 * Flow rule attributes. 5243 * @param[in] items 5244 * Pattern specification (list terminated by the END pattern item). 5245 * @param[in] actions 5246 * Associated actions (list terminated by the END action). 5247 * @param[in] external 5248 * This flow rule is created by request external to PMD. 5249 * @param[in] flow_idx 5250 * This memory pool index to the flow. 5251 * @param[out] error 5252 * Perform verbose error reporting if not NULL. 5253 * @return 5254 * 0 on success, negative value otherwise 5255 */ 5256 static int 5257 flow_create_split_sample(struct rte_eth_dev *dev, 5258 struct rte_flow *flow, 5259 const struct rte_flow_attr *attr, 5260 const struct rte_flow_item items[], 5261 const struct rte_flow_action actions[], 5262 bool external, uint32_t flow_idx, 5263 struct rte_flow_error *error) 5264 { 5265 struct mlx5_priv *priv = dev->data->dev_private; 5266 struct rte_flow_action *sfx_actions = NULL; 5267 struct rte_flow_action *pre_actions = NULL; 5268 struct rte_flow_item *sfx_items = NULL; 5269 struct mlx5_flow *dev_flow = NULL; 5270 struct rte_flow_attr sfx_attr = *attr; 5271 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 5272 struct mlx5_flow_dv_sample_resource *sample_res; 5273 struct mlx5_flow_tbl_data_entry *sfx_tbl_data; 5274 struct mlx5_flow_tbl_resource *sfx_tbl; 5275 union mlx5_flow_tbl_key sfx_table_key; 5276 #endif 5277 size_t act_size; 5278 size_t item_size; 5279 uint32_t fdb_tx = 0; 5280 int32_t tag_id = 0; 5281 int actions_n = 0; 5282 int sample_action_pos; 5283 int qrss_action_pos; 5284 int ret = 0; 5285 5286 if (priv->sampler_en) 5287 actions_n = flow_check_match_action(actions, attr, 5288 RTE_FLOW_ACTION_TYPE_SAMPLE, 5289 &sample_action_pos, &qrss_action_pos); 5290 if (actions_n) { 5291 /* The prefix actions must includes sample, tag, end. */ 5292 act_size = sizeof(struct rte_flow_action) * (actions_n * 2 + 1) 5293 + sizeof(struct mlx5_rte_flow_action_set_tag); 5294 item_size = sizeof(struct rte_flow_item) * SAMPLE_SUFFIX_ITEM + 5295 sizeof(struct mlx5_rte_flow_item_tag) * 2; 5296 sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + 5297 item_size), 0, SOCKET_ID_ANY); 5298 if (!sfx_actions) 5299 return rte_flow_error_set(error, ENOMEM, 5300 RTE_FLOW_ERROR_TYPE_ACTION, 5301 NULL, "no memory to split " 5302 "sample flow"); 5303 /* The representor_id is -1 for uplink. */ 5304 fdb_tx = (attr->transfer && priv->representor_id != -1); 5305 if (!fdb_tx) 5306 sfx_items = (struct rte_flow_item *)((char *)sfx_actions 5307 + act_size); 5308 pre_actions = sfx_actions + actions_n; 5309 tag_id = flow_sample_split_prep(dev, fdb_tx, sfx_items, 5310 actions, sfx_actions, 5311 pre_actions, actions_n, 5312 sample_action_pos, 5313 qrss_action_pos, error); 5314 if (tag_id < 0 || (!fdb_tx && !tag_id)) { 5315 ret = -rte_errno; 5316 goto exit; 5317 } 5318 /* Add the prefix subflow. */ 5319 ret = flow_create_split_inner(dev, flow, &dev_flow, 0, 0, attr, 5320 items, pre_actions, external, 5321 flow_idx, error); 5322 if (ret) { 5323 ret = -rte_errno; 5324 goto exit; 5325 } 5326 dev_flow->handle->split_flow_id = tag_id; 5327 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 5328 /* Set the sfx group attr. */ 5329 sample_res = (struct mlx5_flow_dv_sample_resource *) 5330 dev_flow->dv.sample_res; 5331 sfx_tbl = (struct mlx5_flow_tbl_resource *) 5332 sample_res->normal_path_tbl; 5333 sfx_tbl_data = container_of(sfx_tbl, 5334 struct mlx5_flow_tbl_data_entry, tbl); 5335 sfx_table_key.v64 = sfx_tbl_data->entry.key; 5336 sfx_attr.group = sfx_attr.transfer ? 5337 (sfx_table_key.table_id - 1) : 5338 sfx_table_key.table_id; 5339 #endif 5340 } 5341 /* Add the suffix subflow. */ 5342 ret = flow_create_split_meter(dev, flow, dev_flow ? 5343 flow_get_prefix_layer_flags(dev_flow) : 0, 5344 dev_flow ? dev_flow->handle->mark : 0, 5345 &sfx_attr, sfx_items ? sfx_items : items, 5346 sfx_actions ? sfx_actions : actions, 5347 external, flow_idx, error); 5348 exit: 5349 if (sfx_actions) 5350 mlx5_free(sfx_actions); 5351 return ret; 5352 } 5353 5354 /** 5355 * Split the flow to subflow set. The splitters might be linked 5356 * in the chain, like this: 5357 * flow_create_split_outer() calls: 5358 * flow_create_split_meter() calls: 5359 * flow_create_split_metadata(meter_subflow_0) calls: 5360 * flow_create_split_inner(metadata_subflow_0) 5361 * flow_create_split_inner(metadata_subflow_1) 5362 * flow_create_split_inner(metadata_subflow_2) 5363 * flow_create_split_metadata(meter_subflow_1) calls: 5364 * flow_create_split_inner(metadata_subflow_0) 5365 * flow_create_split_inner(metadata_subflow_1) 5366 * flow_create_split_inner(metadata_subflow_2) 5367 * 5368 * This provide flexible way to add new levels of flow splitting. 5369 * The all of successfully created subflows are included to the 5370 * parent flow dev_flow list. 5371 * 5372 * @param dev 5373 * Pointer to Ethernet device. 5374 * @param[in] flow 5375 * Parent flow structure pointer. 5376 * @param[in] attr 5377 * Flow rule attributes. 5378 * @param[in] items 5379 * Pattern specification (list terminated by the END pattern item). 5380 * @param[in] actions 5381 * Associated actions (list terminated by the END action). 5382 * @param[in] external 5383 * This flow rule is created by request external to PMD. 5384 * @param[in] flow_idx 5385 * This memory pool index to the flow. 5386 * @param[out] error 5387 * Perform verbose error reporting if not NULL. 5388 * @return 5389 * 0 on success, negative value otherwise 5390 */ 5391 static int 5392 flow_create_split_outer(struct rte_eth_dev *dev, 5393 struct rte_flow *flow, 5394 const struct rte_flow_attr *attr, 5395 const struct rte_flow_item items[], 5396 const struct rte_flow_action actions[], 5397 bool external, uint32_t flow_idx, 5398 struct rte_flow_error *error) 5399 { 5400 int ret; 5401 5402 ret = flow_create_split_sample(dev, flow, attr, items, 5403 actions, external, flow_idx, error); 5404 MLX5_ASSERT(ret <= 0); 5405 return ret; 5406 } 5407 5408 static struct mlx5_flow_tunnel * 5409 flow_tunnel_from_rule(struct rte_eth_dev *dev, 5410 const struct rte_flow_attr *attr, 5411 const struct rte_flow_item items[], 5412 const struct rte_flow_action actions[]) 5413 { 5414 struct mlx5_flow_tunnel *tunnel; 5415 5416 #pragma GCC diagnostic push 5417 #pragma GCC diagnostic ignored "-Wcast-qual" 5418 if (is_flow_tunnel_match_rule(dev, attr, items, actions)) 5419 tunnel = (struct mlx5_flow_tunnel *)items[0].spec; 5420 else if (is_flow_tunnel_steer_rule(dev, attr, items, actions)) 5421 tunnel = (struct mlx5_flow_tunnel *)actions[0].conf; 5422 else 5423 tunnel = NULL; 5424 #pragma GCC diagnostic pop 5425 5426 return tunnel; 5427 } 5428 5429 /** 5430 * Adjust flow RSS workspace if needed. 5431 * 5432 * @param wks 5433 * Pointer to thread flow work space. 5434 * @param rss_desc 5435 * Pointer to RSS descriptor. 5436 * @param[in] nrssq_num 5437 * New RSS queue number. 5438 * 5439 * @return 5440 * 0 on success, -1 otherwise and rte_errno is set. 5441 */ 5442 static int 5443 flow_rss_workspace_adjust(struct mlx5_flow_workspace *wks, 5444 struct mlx5_flow_rss_desc *rss_desc, 5445 uint32_t nrssq_num) 5446 { 5447 bool fidx = !!wks->flow_idx; 5448 5449 if (likely(nrssq_num <= wks->rssq_num[fidx])) 5450 return 0; 5451 rss_desc->queue = realloc(rss_desc->queue, 5452 sizeof(rss_desc->queue[0]) * RTE_ALIGN(nrssq_num, 2)); 5453 if (!rss_desc->queue) { 5454 rte_errno = ENOMEM; 5455 return -1; 5456 } 5457 wks->rssq_num[fidx] = RTE_ALIGN(nrssq_num, 2); 5458 return 0; 5459 } 5460 5461 /** 5462 * Create a flow and add it to @p list. 5463 * 5464 * @param dev 5465 * Pointer to Ethernet device. 5466 * @param list 5467 * Pointer to a TAILQ flow list. If this parameter NULL, 5468 * no list insertion occurred, flow is just created, 5469 * this is caller's responsibility to track the 5470 * created flow. 5471 * @param[in] attr 5472 * Flow rule attributes. 5473 * @param[in] items 5474 * Pattern specification (list terminated by the END pattern item). 5475 * @param[in] actions 5476 * Associated actions (list terminated by the END action). 5477 * @param[in] external 5478 * This flow rule is created by request external to PMD. 5479 * @param[out] error 5480 * Perform verbose error reporting if not NULL. 5481 * 5482 * @return 5483 * A flow index on success, 0 otherwise and rte_errno is set. 5484 */ 5485 static uint32_t 5486 flow_list_create(struct rte_eth_dev *dev, uint32_t *list, 5487 const struct rte_flow_attr *attr, 5488 const struct rte_flow_item items[], 5489 const struct rte_flow_action original_actions[], 5490 bool external, struct rte_flow_error *error) 5491 { 5492 struct mlx5_priv *priv = dev->data->dev_private; 5493 struct rte_flow *flow = NULL; 5494 struct mlx5_flow *dev_flow; 5495 const struct rte_flow_action_rss *rss; 5496 struct mlx5_translated_shared_action 5497 shared_actions[MLX5_MAX_SHARED_ACTIONS]; 5498 int shared_actions_n = MLX5_MAX_SHARED_ACTIONS; 5499 union { 5500 struct mlx5_flow_expand_rss buf; 5501 uint8_t buffer[2048]; 5502 } expand_buffer; 5503 union { 5504 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS]; 5505 uint8_t buffer[2048]; 5506 } actions_rx; 5507 union { 5508 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS]; 5509 uint8_t buffer[2048]; 5510 } actions_hairpin_tx; 5511 union { 5512 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS]; 5513 uint8_t buffer[2048]; 5514 } items_tx; 5515 struct mlx5_flow_expand_rss *buf = &expand_buffer.buf; 5516 struct mlx5_flow_rss_desc *rss_desc; 5517 const struct rte_flow_action *p_actions_rx; 5518 uint32_t i; 5519 uint32_t idx = 0; 5520 int hairpin_flow; 5521 struct rte_flow_attr attr_tx = { .priority = 0 }; 5522 struct rte_flow_attr attr_factor = {0}; 5523 const struct rte_flow_action *actions; 5524 struct rte_flow_action *translated_actions = NULL; 5525 struct mlx5_flow_tunnel *tunnel; 5526 struct tunnel_default_miss_ctx default_miss_ctx = { 0, }; 5527 struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace(); 5528 bool fidx = !!wks->flow_idx; 5529 int ret; 5530 5531 MLX5_ASSERT(wks); 5532 rss_desc = &wks->rss_desc[fidx]; 5533 ret = flow_shared_actions_translate(original_actions, 5534 shared_actions, 5535 &shared_actions_n, 5536 &translated_actions, error); 5537 if (ret < 0) { 5538 MLX5_ASSERT(translated_actions == NULL); 5539 return 0; 5540 } 5541 actions = translated_actions ? translated_actions : original_actions; 5542 memcpy((void *)&attr_factor, (const void *)attr, sizeof(*attr)); 5543 p_actions_rx = actions; 5544 hairpin_flow = flow_check_hairpin_split(dev, &attr_factor, actions); 5545 ret = flow_drv_validate(dev, &attr_factor, items, p_actions_rx, 5546 external, hairpin_flow, error); 5547 if (ret < 0) 5548 goto error_before_hairpin_split; 5549 flow = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], &idx); 5550 if (!flow) { 5551 rte_errno = ENOMEM; 5552 goto error_before_hairpin_split; 5553 } 5554 if (hairpin_flow > 0) { 5555 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) { 5556 rte_errno = EINVAL; 5557 goto error_before_hairpin_split; 5558 } 5559 flow_hairpin_split(dev, actions, actions_rx.actions, 5560 actions_hairpin_tx.actions, items_tx.items, 5561 idx); 5562 p_actions_rx = actions_rx.actions; 5563 } 5564 flow->drv_type = flow_get_drv_type(dev, &attr_factor); 5565 MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN && 5566 flow->drv_type < MLX5_FLOW_TYPE_MAX); 5567 memset(rss_desc, 0, offsetof(struct mlx5_flow_rss_desc, queue)); 5568 rss = flow_get_rss_action(p_actions_rx); 5569 if (rss) { 5570 if (flow_rss_workspace_adjust(wks, rss_desc, rss->queue_num)) 5571 return 0; 5572 /* 5573 * The following information is required by 5574 * mlx5_flow_hashfields_adjust() in advance. 5575 */ 5576 rss_desc->level = rss->level; 5577 /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */ 5578 rss_desc->types = !rss->types ? ETH_RSS_IP : rss->types; 5579 } 5580 flow->dev_handles = 0; 5581 if (rss && rss->types) { 5582 unsigned int graph_root; 5583 5584 graph_root = find_graph_root(items, rss->level); 5585 ret = mlx5_flow_expand_rss(buf, sizeof(expand_buffer.buffer), 5586 items, rss->types, 5587 mlx5_support_expansion, graph_root); 5588 MLX5_ASSERT(ret > 0 && 5589 (unsigned int)ret < sizeof(expand_buffer.buffer)); 5590 } else { 5591 buf->entries = 1; 5592 buf->entry[0].pattern = (void *)(uintptr_t)items; 5593 } 5594 flow->shared_rss = flow_get_shared_rss_action(shared_actions, 5595 shared_actions_n); 5596 /* 5597 * Record the start index when there is a nested call. All sub-flows 5598 * need to be translated before another calling. 5599 * No need to use ping-pong buffer to save memory here. 5600 */ 5601 if (fidx) { 5602 MLX5_ASSERT(!wks->flow_nested_idx); 5603 wks->flow_nested_idx = fidx; 5604 } 5605 for (i = 0; i < buf->entries; ++i) { 5606 /* 5607 * The splitter may create multiple dev_flows, 5608 * depending on configuration. In the simplest 5609 * case it just creates unmodified original flow. 5610 */ 5611 ret = flow_create_split_outer(dev, flow, &attr_factor, 5612 buf->entry[i].pattern, 5613 p_actions_rx, external, idx, 5614 error); 5615 if (ret < 0) 5616 goto error; 5617 if (is_flow_tunnel_steer_rule(dev, attr, 5618 buf->entry[i].pattern, 5619 p_actions_rx)) { 5620 ret = flow_tunnel_add_default_miss(dev, flow, attr, 5621 p_actions_rx, 5622 idx, 5623 &default_miss_ctx, 5624 error); 5625 if (ret < 0) { 5626 mlx5_free(default_miss_ctx.queue); 5627 goto error; 5628 } 5629 } 5630 } 5631 /* Create the tx flow. */ 5632 if (hairpin_flow) { 5633 attr_tx.group = MLX5_HAIRPIN_TX_TABLE; 5634 attr_tx.ingress = 0; 5635 attr_tx.egress = 1; 5636 dev_flow = flow_drv_prepare(dev, flow, &attr_tx, items_tx.items, 5637 actions_hairpin_tx.actions, 5638 idx, error); 5639 if (!dev_flow) 5640 goto error; 5641 dev_flow->flow = flow; 5642 dev_flow->external = 0; 5643 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx, 5644 dev_flow->handle, next); 5645 ret = flow_drv_translate(dev, dev_flow, &attr_tx, 5646 items_tx.items, 5647 actions_hairpin_tx.actions, error); 5648 if (ret < 0) 5649 goto error; 5650 } 5651 /* 5652 * Update the metadata register copy table. If extensive 5653 * metadata feature is enabled and registers are supported 5654 * we might create the extra rte_flow for each unique 5655 * MARK/FLAG action ID. 5656 * 5657 * The table is updated for ingress Flows only, because 5658 * the egress Flows belong to the different device and 5659 * copy table should be updated in peer NIC Rx domain. 5660 */ 5661 if (attr_factor.ingress && 5662 (external || attr_factor.group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) { 5663 ret = flow_mreg_update_copy_table(dev, flow, actions, error); 5664 if (ret) 5665 goto error; 5666 } 5667 /* 5668 * If the flow is external (from application) OR device is started, then 5669 * the flow will be applied immediately. 5670 */ 5671 if (external || dev->data->dev_started) { 5672 ret = flow_drv_apply(dev, flow, error); 5673 if (ret < 0) 5674 goto error; 5675 } 5676 if (list) { 5677 rte_spinlock_lock(&priv->flow_list_lock); 5678 ILIST_INSERT(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list, idx, 5679 flow, next); 5680 rte_spinlock_unlock(&priv->flow_list_lock); 5681 } 5682 flow_rxq_flags_set(dev, flow); 5683 rte_free(translated_actions); 5684 /* Nested flow creation index recovery. */ 5685 wks->flow_idx = wks->flow_nested_idx; 5686 if (wks->flow_nested_idx) 5687 wks->flow_nested_idx = 0; 5688 tunnel = flow_tunnel_from_rule(dev, attr, items, actions); 5689 if (tunnel) { 5690 flow->tunnel = 1; 5691 flow->tunnel_id = tunnel->tunnel_id; 5692 __atomic_add_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED); 5693 mlx5_free(default_miss_ctx.queue); 5694 } 5695 return idx; 5696 error: 5697 MLX5_ASSERT(flow); 5698 ret = rte_errno; /* Save rte_errno before cleanup. */ 5699 flow_mreg_del_copy_action(dev, flow); 5700 flow_drv_destroy(dev, flow); 5701 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], idx); 5702 rte_errno = ret; /* Restore rte_errno. */ 5703 ret = rte_errno; 5704 rte_errno = ret; 5705 wks->flow_idx = wks->flow_nested_idx; 5706 if (wks->flow_nested_idx) 5707 wks->flow_nested_idx = 0; 5708 error_before_hairpin_split: 5709 rte_free(translated_actions); 5710 return 0; 5711 } 5712 5713 /** 5714 * Create a dedicated flow rule on e-switch table 0 (root table), to direct all 5715 * incoming packets to table 1. 5716 * 5717 * Other flow rules, requested for group n, will be created in 5718 * e-switch table n+1. 5719 * Jump action to e-switch group n will be created to group n+1. 5720 * 5721 * Used when working in switchdev mode, to utilise advantages of table 1 5722 * and above. 5723 * 5724 * @param dev 5725 * Pointer to Ethernet device. 5726 * 5727 * @return 5728 * Pointer to flow on success, NULL otherwise and rte_errno is set. 5729 */ 5730 struct rte_flow * 5731 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev) 5732 { 5733 const struct rte_flow_attr attr = { 5734 .group = 0, 5735 .priority = 0, 5736 .ingress = 1, 5737 .egress = 0, 5738 .transfer = 1, 5739 }; 5740 const struct rte_flow_item pattern = { 5741 .type = RTE_FLOW_ITEM_TYPE_END, 5742 }; 5743 struct rte_flow_action_jump jump = { 5744 .group = 1, 5745 }; 5746 const struct rte_flow_action actions[] = { 5747 { 5748 .type = RTE_FLOW_ACTION_TYPE_JUMP, 5749 .conf = &jump, 5750 }, 5751 { 5752 .type = RTE_FLOW_ACTION_TYPE_END, 5753 }, 5754 }; 5755 struct mlx5_priv *priv = dev->data->dev_private; 5756 struct rte_flow_error error; 5757 5758 return (void *)(uintptr_t)flow_list_create(dev, &priv->ctrl_flows, 5759 &attr, &pattern, 5760 actions, false, &error); 5761 } 5762 5763 /** 5764 * Validate a flow supported by the NIC. 5765 * 5766 * @see rte_flow_validate() 5767 * @see rte_flow_ops 5768 */ 5769 int 5770 mlx5_flow_validate(struct rte_eth_dev *dev, 5771 const struct rte_flow_attr *attr, 5772 const struct rte_flow_item items[], 5773 const struct rte_flow_action original_actions[], 5774 struct rte_flow_error *error) 5775 { 5776 int hairpin_flow; 5777 struct mlx5_translated_shared_action 5778 shared_actions[MLX5_MAX_SHARED_ACTIONS]; 5779 int shared_actions_n = MLX5_MAX_SHARED_ACTIONS; 5780 const struct rte_flow_action *actions; 5781 struct rte_flow_action *translated_actions = NULL; 5782 int ret = flow_shared_actions_translate(original_actions, 5783 shared_actions, 5784 &shared_actions_n, 5785 &translated_actions, error); 5786 5787 if (ret) 5788 return ret; 5789 actions = translated_actions ? translated_actions : original_actions; 5790 hairpin_flow = flow_check_hairpin_split(dev, attr, actions); 5791 ret = flow_drv_validate(dev, attr, items, actions, 5792 true, hairpin_flow, error); 5793 rte_free(translated_actions); 5794 return ret; 5795 } 5796 5797 /** 5798 * Create a flow. 5799 * 5800 * @see rte_flow_create() 5801 * @see rte_flow_ops 5802 */ 5803 struct rte_flow * 5804 mlx5_flow_create(struct rte_eth_dev *dev, 5805 const struct rte_flow_attr *attr, 5806 const struct rte_flow_item items[], 5807 const struct rte_flow_action actions[], 5808 struct rte_flow_error *error) 5809 { 5810 struct mlx5_priv *priv = dev->data->dev_private; 5811 5812 /* 5813 * If the device is not started yet, it is not allowed to created a 5814 * flow from application. PMD default flows and traffic control flows 5815 * are not affected. 5816 */ 5817 if (unlikely(!dev->data->dev_started)) { 5818 DRV_LOG(DEBUG, "port %u is not started when " 5819 "inserting a flow", dev->data->port_id); 5820 rte_flow_error_set(error, ENODEV, 5821 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 5822 NULL, 5823 "port not started"); 5824 return NULL; 5825 } 5826 5827 return (void *)(uintptr_t)flow_list_create(dev, &priv->flows, 5828 attr, items, actions, true, error); 5829 } 5830 5831 /** 5832 * Destroy a flow in a list. 5833 * 5834 * @param dev 5835 * Pointer to Ethernet device. 5836 * @param list 5837 * Pointer to the Indexed flow list. If this parameter NULL, 5838 * there is no flow removal from the list. Be noted that as 5839 * flow is add to the indexed list, memory of the indexed 5840 * list points to maybe changed as flow destroyed. 5841 * @param[in] flow_idx 5842 * Index of flow to destroy. 5843 */ 5844 static void 5845 flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list, 5846 uint32_t flow_idx) 5847 { 5848 struct mlx5_priv *priv = dev->data->dev_private; 5849 struct mlx5_fdir_flow *priv_fdir_flow = NULL; 5850 struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool 5851 [MLX5_IPOOL_RTE_FLOW], flow_idx); 5852 5853 if (!flow) 5854 return; 5855 /* 5856 * Update RX queue flags only if port is started, otherwise it is 5857 * already clean. 5858 */ 5859 if (dev->data->dev_started) 5860 flow_rxq_flags_trim(dev, flow); 5861 flow_drv_destroy(dev, flow); 5862 if (list) { 5863 rte_spinlock_lock(&priv->flow_list_lock); 5864 ILIST_REMOVE(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list, 5865 flow_idx, flow, next); 5866 rte_spinlock_unlock(&priv->flow_list_lock); 5867 } 5868 flow_mreg_del_copy_action(dev, flow); 5869 if (flow->fdir) { 5870 LIST_FOREACH(priv_fdir_flow, &priv->fdir_flows, next) { 5871 if (priv_fdir_flow->rix_flow == flow_idx) 5872 break; 5873 } 5874 if (priv_fdir_flow) { 5875 LIST_REMOVE(priv_fdir_flow, next); 5876 mlx5_free(priv_fdir_flow->fdir); 5877 mlx5_free(priv_fdir_flow); 5878 } 5879 } 5880 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], flow_idx); 5881 if (flow->tunnel) { 5882 struct mlx5_flow_tunnel *tunnel; 5883 tunnel = mlx5_find_tunnel_id(dev, flow->tunnel_id); 5884 RTE_VERIFY(tunnel); 5885 if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED)) 5886 mlx5_flow_tunnel_free(dev, tunnel); 5887 } 5888 } 5889 5890 /** 5891 * Destroy all flows. 5892 * 5893 * @param dev 5894 * Pointer to Ethernet device. 5895 * @param list 5896 * Pointer to the Indexed flow list. 5897 * @param active 5898 * If flushing is called avtively. 5899 */ 5900 void 5901 mlx5_flow_list_flush(struct rte_eth_dev *dev, uint32_t *list, bool active) 5902 { 5903 uint32_t num_flushed = 0; 5904 5905 while (*list) { 5906 flow_list_destroy(dev, list, *list); 5907 num_flushed++; 5908 } 5909 if (active) { 5910 DRV_LOG(INFO, "port %u: %u flows flushed before stopping", 5911 dev->data->port_id, num_flushed); 5912 } 5913 } 5914 5915 /** 5916 * Stop all default actions for flows. 5917 * 5918 * @param dev 5919 * Pointer to Ethernet device. 5920 */ 5921 void 5922 mlx5_flow_stop_default(struct rte_eth_dev *dev) 5923 { 5924 flow_mreg_del_default_copy_action(dev); 5925 flow_rxq_flags_clear(dev); 5926 } 5927 5928 /** 5929 * Start all default actions for flows. 5930 * 5931 * @param dev 5932 * Pointer to Ethernet device. 5933 * @return 5934 * 0 on success, a negative errno value otherwise and rte_errno is set. 5935 */ 5936 int 5937 mlx5_flow_start_default(struct rte_eth_dev *dev) 5938 { 5939 struct rte_flow_error error; 5940 5941 /* Make sure default copy action (reg_c[0] -> reg_b) is created. */ 5942 return flow_mreg_add_default_copy_action(dev, &error); 5943 } 5944 5945 /** 5946 * Release key of thread specific flow workspace data. 5947 */ 5948 static void 5949 flow_release_workspace(void *data) 5950 { 5951 struct mlx5_flow_workspace *wks = data; 5952 5953 if (!wks) 5954 return; 5955 free(wks->rss_desc[0].queue); 5956 free(wks->rss_desc[1].queue); 5957 free(wks); 5958 } 5959 5960 /** 5961 * Initialize key of thread specific flow workspace data. 5962 */ 5963 static void 5964 flow_alloc_workspace(void) 5965 { 5966 if (pthread_key_create(&key_workspace, flow_release_workspace)) 5967 DRV_LOG(ERR, "Can't create flow workspace data thread key."); 5968 } 5969 5970 /** 5971 * Get thread specific flow workspace. 5972 * 5973 * @return pointer to thread specific flowworkspace data, NULL on error. 5974 */ 5975 struct mlx5_flow_workspace* 5976 mlx5_flow_get_thread_workspace(void) 5977 { 5978 struct mlx5_flow_workspace *data; 5979 5980 if (pthread_once(&key_workspace_init, flow_alloc_workspace)) { 5981 DRV_LOG(ERR, "Failed to init flow workspace data thread key."); 5982 return NULL; 5983 } 5984 data = pthread_getspecific(key_workspace); 5985 if (!data) { 5986 data = calloc(1, sizeof(*data)); 5987 if (!data) { 5988 DRV_LOG(ERR, "Failed to allocate flow workspace " 5989 "memory."); 5990 return NULL; 5991 } 5992 data->rss_desc[0].queue = calloc(1, 5993 sizeof(uint16_t) * MLX5_RSSQ_DEFAULT_NUM); 5994 if (!data->rss_desc[0].queue) 5995 goto err; 5996 data->rss_desc[1].queue = calloc(1, 5997 sizeof(uint16_t) * MLX5_RSSQ_DEFAULT_NUM); 5998 if (!data->rss_desc[1].queue) 5999 goto err; 6000 data->rssq_num[0] = MLX5_RSSQ_DEFAULT_NUM; 6001 data->rssq_num[1] = MLX5_RSSQ_DEFAULT_NUM; 6002 if (pthread_setspecific(key_workspace, data)) { 6003 DRV_LOG(ERR, "Failed to set flow workspace to thread."); 6004 goto err; 6005 } 6006 } 6007 return data; 6008 err: 6009 if (data->rss_desc[0].queue) 6010 free(data->rss_desc[0].queue); 6011 if (data->rss_desc[1].queue) 6012 free(data->rss_desc[1].queue); 6013 free(data); 6014 return NULL; 6015 } 6016 6017 /** 6018 * Verify the flow list is empty 6019 * 6020 * @param dev 6021 * Pointer to Ethernet device. 6022 * 6023 * @return the number of flows not released. 6024 */ 6025 int 6026 mlx5_flow_verify(struct rte_eth_dev *dev) 6027 { 6028 struct mlx5_priv *priv = dev->data->dev_private; 6029 struct rte_flow *flow; 6030 uint32_t idx; 6031 int ret = 0; 6032 6033 ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], priv->flows, idx, 6034 flow, next) { 6035 DRV_LOG(DEBUG, "port %u flow %p still referenced", 6036 dev->data->port_id, (void *)flow); 6037 ++ret; 6038 } 6039 return ret; 6040 } 6041 6042 /** 6043 * Enable default hairpin egress flow. 6044 * 6045 * @param dev 6046 * Pointer to Ethernet device. 6047 * @param queue 6048 * The queue index. 6049 * 6050 * @return 6051 * 0 on success, a negative errno value otherwise and rte_errno is set. 6052 */ 6053 int 6054 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev, 6055 uint32_t queue) 6056 { 6057 struct mlx5_priv *priv = dev->data->dev_private; 6058 const struct rte_flow_attr attr = { 6059 .egress = 1, 6060 .priority = 0, 6061 }; 6062 struct mlx5_rte_flow_item_tx_queue queue_spec = { 6063 .queue = queue, 6064 }; 6065 struct mlx5_rte_flow_item_tx_queue queue_mask = { 6066 .queue = UINT32_MAX, 6067 }; 6068 struct rte_flow_item items[] = { 6069 { 6070 .type = (enum rte_flow_item_type) 6071 MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE, 6072 .spec = &queue_spec, 6073 .last = NULL, 6074 .mask = &queue_mask, 6075 }, 6076 { 6077 .type = RTE_FLOW_ITEM_TYPE_END, 6078 }, 6079 }; 6080 struct rte_flow_action_jump jump = { 6081 .group = MLX5_HAIRPIN_TX_TABLE, 6082 }; 6083 struct rte_flow_action actions[2]; 6084 uint32_t flow_idx; 6085 struct rte_flow_error error; 6086 6087 actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP; 6088 actions[0].conf = &jump; 6089 actions[1].type = RTE_FLOW_ACTION_TYPE_END; 6090 flow_idx = flow_list_create(dev, &priv->ctrl_flows, 6091 &attr, items, actions, false, &error); 6092 if (!flow_idx) { 6093 DRV_LOG(DEBUG, 6094 "Failed to create ctrl flow: rte_errno(%d)," 6095 " type(%d), message(%s)", 6096 rte_errno, error.type, 6097 error.message ? error.message : " (no stated reason)"); 6098 return -rte_errno; 6099 } 6100 return 0; 6101 } 6102 6103 /** 6104 * Enable a control flow configured from the control plane. 6105 * 6106 * @param dev 6107 * Pointer to Ethernet device. 6108 * @param eth_spec 6109 * An Ethernet flow spec to apply. 6110 * @param eth_mask 6111 * An Ethernet flow mask to apply. 6112 * @param vlan_spec 6113 * A VLAN flow spec to apply. 6114 * @param vlan_mask 6115 * A VLAN flow mask to apply. 6116 * 6117 * @return 6118 * 0 on success, a negative errno value otherwise and rte_errno is set. 6119 */ 6120 int 6121 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev, 6122 struct rte_flow_item_eth *eth_spec, 6123 struct rte_flow_item_eth *eth_mask, 6124 struct rte_flow_item_vlan *vlan_spec, 6125 struct rte_flow_item_vlan *vlan_mask) 6126 { 6127 struct mlx5_priv *priv = dev->data->dev_private; 6128 const struct rte_flow_attr attr = { 6129 .ingress = 1, 6130 .priority = MLX5_FLOW_PRIO_RSVD, 6131 }; 6132 struct rte_flow_item items[] = { 6133 { 6134 .type = RTE_FLOW_ITEM_TYPE_ETH, 6135 .spec = eth_spec, 6136 .last = NULL, 6137 .mask = eth_mask, 6138 }, 6139 { 6140 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN : 6141 RTE_FLOW_ITEM_TYPE_END, 6142 .spec = vlan_spec, 6143 .last = NULL, 6144 .mask = vlan_mask, 6145 }, 6146 { 6147 .type = RTE_FLOW_ITEM_TYPE_END, 6148 }, 6149 }; 6150 uint16_t queue[priv->reta_idx_n]; 6151 struct rte_flow_action_rss action_rss = { 6152 .func = RTE_ETH_HASH_FUNCTION_DEFAULT, 6153 .level = 0, 6154 .types = priv->rss_conf.rss_hf, 6155 .key_len = priv->rss_conf.rss_key_len, 6156 .queue_num = priv->reta_idx_n, 6157 .key = priv->rss_conf.rss_key, 6158 .queue = queue, 6159 }; 6160 struct rte_flow_action actions[] = { 6161 { 6162 .type = RTE_FLOW_ACTION_TYPE_RSS, 6163 .conf = &action_rss, 6164 }, 6165 { 6166 .type = RTE_FLOW_ACTION_TYPE_END, 6167 }, 6168 }; 6169 uint32_t flow_idx; 6170 struct rte_flow_error error; 6171 unsigned int i; 6172 6173 if (!priv->reta_idx_n || !priv->rxqs_n) { 6174 return 0; 6175 } 6176 if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)) 6177 action_rss.types = 0; 6178 for (i = 0; i != priv->reta_idx_n; ++i) 6179 queue[i] = (*priv->reta_idx)[i]; 6180 flow_idx = flow_list_create(dev, &priv->ctrl_flows, 6181 &attr, items, actions, false, &error); 6182 if (!flow_idx) 6183 return -rte_errno; 6184 return 0; 6185 } 6186 6187 /** 6188 * Enable a flow control configured from the control plane. 6189 * 6190 * @param dev 6191 * Pointer to Ethernet device. 6192 * @param eth_spec 6193 * An Ethernet flow spec to apply. 6194 * @param eth_mask 6195 * An Ethernet flow mask to apply. 6196 * 6197 * @return 6198 * 0 on success, a negative errno value otherwise and rte_errno is set. 6199 */ 6200 int 6201 mlx5_ctrl_flow(struct rte_eth_dev *dev, 6202 struct rte_flow_item_eth *eth_spec, 6203 struct rte_flow_item_eth *eth_mask) 6204 { 6205 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL); 6206 } 6207 6208 /** 6209 * Create default miss flow rule matching lacp traffic 6210 * 6211 * @param dev 6212 * Pointer to Ethernet device. 6213 * @param eth_spec 6214 * An Ethernet flow spec to apply. 6215 * 6216 * @return 6217 * 0 on success, a negative errno value otherwise and rte_errno is set. 6218 */ 6219 int 6220 mlx5_flow_lacp_miss(struct rte_eth_dev *dev) 6221 { 6222 struct mlx5_priv *priv = dev->data->dev_private; 6223 /* 6224 * The LACP matching is done by only using ether type since using 6225 * a multicast dst mac causes kernel to give low priority to this flow. 6226 */ 6227 static const struct rte_flow_item_eth lacp_spec = { 6228 .type = RTE_BE16(0x8809), 6229 }; 6230 static const struct rte_flow_item_eth lacp_mask = { 6231 .type = 0xffff, 6232 }; 6233 const struct rte_flow_attr attr = { 6234 .ingress = 1, 6235 }; 6236 struct rte_flow_item items[] = { 6237 { 6238 .type = RTE_FLOW_ITEM_TYPE_ETH, 6239 .spec = &lacp_spec, 6240 .mask = &lacp_mask, 6241 }, 6242 { 6243 .type = RTE_FLOW_ITEM_TYPE_END, 6244 }, 6245 }; 6246 struct rte_flow_action actions[] = { 6247 { 6248 .type = (enum rte_flow_action_type) 6249 MLX5_RTE_FLOW_ACTION_TYPE_DEFAULT_MISS, 6250 }, 6251 { 6252 .type = RTE_FLOW_ACTION_TYPE_END, 6253 }, 6254 }; 6255 struct rte_flow_error error; 6256 uint32_t flow_idx = flow_list_create(dev, &priv->ctrl_flows, 6257 &attr, items, actions, false, &error); 6258 6259 if (!flow_idx) 6260 return -rte_errno; 6261 return 0; 6262 } 6263 6264 /** 6265 * Destroy a flow. 6266 * 6267 * @see rte_flow_destroy() 6268 * @see rte_flow_ops 6269 */ 6270 int 6271 mlx5_flow_destroy(struct rte_eth_dev *dev, 6272 struct rte_flow *flow, 6273 struct rte_flow_error *error __rte_unused) 6274 { 6275 struct mlx5_priv *priv = dev->data->dev_private; 6276 6277 flow_list_destroy(dev, &priv->flows, (uintptr_t)(void *)flow); 6278 return 0; 6279 } 6280 6281 /** 6282 * Destroy all flows. 6283 * 6284 * @see rte_flow_flush() 6285 * @see rte_flow_ops 6286 */ 6287 int 6288 mlx5_flow_flush(struct rte_eth_dev *dev, 6289 struct rte_flow_error *error __rte_unused) 6290 { 6291 struct mlx5_priv *priv = dev->data->dev_private; 6292 6293 mlx5_flow_list_flush(dev, &priv->flows, false); 6294 return 0; 6295 } 6296 6297 /** 6298 * Isolated mode. 6299 * 6300 * @see rte_flow_isolate() 6301 * @see rte_flow_ops 6302 */ 6303 int 6304 mlx5_flow_isolate(struct rte_eth_dev *dev, 6305 int enable, 6306 struct rte_flow_error *error) 6307 { 6308 struct mlx5_priv *priv = dev->data->dev_private; 6309 6310 if (dev->data->dev_started) { 6311 rte_flow_error_set(error, EBUSY, 6312 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 6313 NULL, 6314 "port must be stopped first"); 6315 return -rte_errno; 6316 } 6317 priv->isolated = !!enable; 6318 if (enable) 6319 dev->dev_ops = &mlx5_os_dev_ops_isolate; 6320 else 6321 dev->dev_ops = &mlx5_os_dev_ops; 6322 6323 dev->rx_descriptor_status = mlx5_rx_descriptor_status; 6324 dev->tx_descriptor_status = mlx5_tx_descriptor_status; 6325 6326 return 0; 6327 } 6328 6329 /** 6330 * Query a flow. 6331 * 6332 * @see rte_flow_query() 6333 * @see rte_flow_ops 6334 */ 6335 static int 6336 flow_drv_query(struct rte_eth_dev *dev, 6337 uint32_t flow_idx, 6338 const struct rte_flow_action *actions, 6339 void *data, 6340 struct rte_flow_error *error) 6341 { 6342 struct mlx5_priv *priv = dev->data->dev_private; 6343 const struct mlx5_flow_driver_ops *fops; 6344 struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool 6345 [MLX5_IPOOL_RTE_FLOW], 6346 flow_idx); 6347 enum mlx5_flow_drv_type ftype; 6348 6349 if (!flow) { 6350 return rte_flow_error_set(error, ENOENT, 6351 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 6352 NULL, 6353 "invalid flow handle"); 6354 } 6355 ftype = flow->drv_type; 6356 MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX); 6357 fops = flow_get_drv_ops(ftype); 6358 6359 return fops->query(dev, flow, actions, data, error); 6360 } 6361 6362 /** 6363 * Query a flow. 6364 * 6365 * @see rte_flow_query() 6366 * @see rte_flow_ops 6367 */ 6368 int 6369 mlx5_flow_query(struct rte_eth_dev *dev, 6370 struct rte_flow *flow, 6371 const struct rte_flow_action *actions, 6372 void *data, 6373 struct rte_flow_error *error) 6374 { 6375 int ret; 6376 6377 ret = flow_drv_query(dev, (uintptr_t)(void *)flow, actions, data, 6378 error); 6379 if (ret < 0) 6380 return ret; 6381 return 0; 6382 } 6383 6384 /** 6385 * Convert a flow director filter to a generic flow. 6386 * 6387 * @param dev 6388 * Pointer to Ethernet device. 6389 * @param fdir_filter 6390 * Flow director filter to add. 6391 * @param attributes 6392 * Generic flow parameters structure. 6393 * 6394 * @return 6395 * 0 on success, a negative errno value otherwise and rte_errno is set. 6396 */ 6397 static int 6398 flow_fdir_filter_convert(struct rte_eth_dev *dev, 6399 const struct rte_eth_fdir_filter *fdir_filter, 6400 struct mlx5_fdir *attributes) 6401 { 6402 struct mlx5_priv *priv = dev->data->dev_private; 6403 const struct rte_eth_fdir_input *input = &fdir_filter->input; 6404 const struct rte_eth_fdir_masks *mask = 6405 &dev->data->dev_conf.fdir_conf.mask; 6406 6407 /* Validate queue number. */ 6408 if (fdir_filter->action.rx_queue >= priv->rxqs_n) { 6409 DRV_LOG(ERR, "port %u invalid queue number %d", 6410 dev->data->port_id, fdir_filter->action.rx_queue); 6411 rte_errno = EINVAL; 6412 return -rte_errno; 6413 } 6414 attributes->attr.ingress = 1; 6415 attributes->items[0] = (struct rte_flow_item) { 6416 .type = RTE_FLOW_ITEM_TYPE_ETH, 6417 .spec = &attributes->l2, 6418 .mask = &attributes->l2_mask, 6419 }; 6420 switch (fdir_filter->action.behavior) { 6421 case RTE_ETH_FDIR_ACCEPT: 6422 attributes->actions[0] = (struct rte_flow_action){ 6423 .type = RTE_FLOW_ACTION_TYPE_QUEUE, 6424 .conf = &attributes->queue, 6425 }; 6426 break; 6427 case RTE_ETH_FDIR_REJECT: 6428 attributes->actions[0] = (struct rte_flow_action){ 6429 .type = RTE_FLOW_ACTION_TYPE_DROP, 6430 }; 6431 break; 6432 default: 6433 DRV_LOG(ERR, "port %u invalid behavior %d", 6434 dev->data->port_id, 6435 fdir_filter->action.behavior); 6436 rte_errno = ENOTSUP; 6437 return -rte_errno; 6438 } 6439 attributes->queue.index = fdir_filter->action.rx_queue; 6440 /* Handle L3. */ 6441 switch (fdir_filter->input.flow_type) { 6442 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: 6443 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: 6444 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: 6445 attributes->l3.ipv4.hdr = (struct rte_ipv4_hdr){ 6446 .src_addr = input->flow.ip4_flow.src_ip, 6447 .dst_addr = input->flow.ip4_flow.dst_ip, 6448 .time_to_live = input->flow.ip4_flow.ttl, 6449 .type_of_service = input->flow.ip4_flow.tos, 6450 }; 6451 attributes->l3_mask.ipv4.hdr = (struct rte_ipv4_hdr){ 6452 .src_addr = mask->ipv4_mask.src_ip, 6453 .dst_addr = mask->ipv4_mask.dst_ip, 6454 .time_to_live = mask->ipv4_mask.ttl, 6455 .type_of_service = mask->ipv4_mask.tos, 6456 .next_proto_id = mask->ipv4_mask.proto, 6457 }; 6458 attributes->items[1] = (struct rte_flow_item){ 6459 .type = RTE_FLOW_ITEM_TYPE_IPV4, 6460 .spec = &attributes->l3, 6461 .mask = &attributes->l3_mask, 6462 }; 6463 break; 6464 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: 6465 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: 6466 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: 6467 attributes->l3.ipv6.hdr = (struct rte_ipv6_hdr){ 6468 .hop_limits = input->flow.ipv6_flow.hop_limits, 6469 .proto = input->flow.ipv6_flow.proto, 6470 }; 6471 6472 memcpy(attributes->l3.ipv6.hdr.src_addr, 6473 input->flow.ipv6_flow.src_ip, 6474 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 6475 memcpy(attributes->l3.ipv6.hdr.dst_addr, 6476 input->flow.ipv6_flow.dst_ip, 6477 RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); 6478 memcpy(attributes->l3_mask.ipv6.hdr.src_addr, 6479 mask->ipv6_mask.src_ip, 6480 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr)); 6481 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr, 6482 mask->ipv6_mask.dst_ip, 6483 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr)); 6484 attributes->items[1] = (struct rte_flow_item){ 6485 .type = RTE_FLOW_ITEM_TYPE_IPV6, 6486 .spec = &attributes->l3, 6487 .mask = &attributes->l3_mask, 6488 }; 6489 break; 6490 default: 6491 DRV_LOG(ERR, "port %u invalid flow type%d", 6492 dev->data->port_id, fdir_filter->input.flow_type); 6493 rte_errno = ENOTSUP; 6494 return -rte_errno; 6495 } 6496 /* Handle L4. */ 6497 switch (fdir_filter->input.flow_type) { 6498 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: 6499 attributes->l4.udp.hdr = (struct rte_udp_hdr){ 6500 .src_port = input->flow.udp4_flow.src_port, 6501 .dst_port = input->flow.udp4_flow.dst_port, 6502 }; 6503 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){ 6504 .src_port = mask->src_port_mask, 6505 .dst_port = mask->dst_port_mask, 6506 }; 6507 attributes->items[2] = (struct rte_flow_item){ 6508 .type = RTE_FLOW_ITEM_TYPE_UDP, 6509 .spec = &attributes->l4, 6510 .mask = &attributes->l4_mask, 6511 }; 6512 break; 6513 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: 6514 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){ 6515 .src_port = input->flow.tcp4_flow.src_port, 6516 .dst_port = input->flow.tcp4_flow.dst_port, 6517 }; 6518 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){ 6519 .src_port = mask->src_port_mask, 6520 .dst_port = mask->dst_port_mask, 6521 }; 6522 attributes->items[2] = (struct rte_flow_item){ 6523 .type = RTE_FLOW_ITEM_TYPE_TCP, 6524 .spec = &attributes->l4, 6525 .mask = &attributes->l4_mask, 6526 }; 6527 break; 6528 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: 6529 attributes->l4.udp.hdr = (struct rte_udp_hdr){ 6530 .src_port = input->flow.udp6_flow.src_port, 6531 .dst_port = input->flow.udp6_flow.dst_port, 6532 }; 6533 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){ 6534 .src_port = mask->src_port_mask, 6535 .dst_port = mask->dst_port_mask, 6536 }; 6537 attributes->items[2] = (struct rte_flow_item){ 6538 .type = RTE_FLOW_ITEM_TYPE_UDP, 6539 .spec = &attributes->l4, 6540 .mask = &attributes->l4_mask, 6541 }; 6542 break; 6543 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: 6544 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){ 6545 .src_port = input->flow.tcp6_flow.src_port, 6546 .dst_port = input->flow.tcp6_flow.dst_port, 6547 }; 6548 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){ 6549 .src_port = mask->src_port_mask, 6550 .dst_port = mask->dst_port_mask, 6551 }; 6552 attributes->items[2] = (struct rte_flow_item){ 6553 .type = RTE_FLOW_ITEM_TYPE_TCP, 6554 .spec = &attributes->l4, 6555 .mask = &attributes->l4_mask, 6556 }; 6557 break; 6558 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: 6559 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: 6560 break; 6561 default: 6562 DRV_LOG(ERR, "port %u invalid flow type%d", 6563 dev->data->port_id, fdir_filter->input.flow_type); 6564 rte_errno = ENOTSUP; 6565 return -rte_errno; 6566 } 6567 return 0; 6568 } 6569 6570 #define FLOW_FDIR_CMP(f1, f2, fld) \ 6571 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld)) 6572 6573 /** 6574 * Compare two FDIR flows. If items and actions are identical, the two flows are 6575 * regarded as same. 6576 * 6577 * @param dev 6578 * Pointer to Ethernet device. 6579 * @param f1 6580 * FDIR flow to compare. 6581 * @param f2 6582 * FDIR flow to compare. 6583 * 6584 * @return 6585 * Zero on match, 1 otherwise. 6586 */ 6587 static int 6588 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2) 6589 { 6590 if (FLOW_FDIR_CMP(f1, f2, attr) || 6591 FLOW_FDIR_CMP(f1, f2, l2) || 6592 FLOW_FDIR_CMP(f1, f2, l2_mask) || 6593 FLOW_FDIR_CMP(f1, f2, l3) || 6594 FLOW_FDIR_CMP(f1, f2, l3_mask) || 6595 FLOW_FDIR_CMP(f1, f2, l4) || 6596 FLOW_FDIR_CMP(f1, f2, l4_mask) || 6597 FLOW_FDIR_CMP(f1, f2, actions[0].type)) 6598 return 1; 6599 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE && 6600 FLOW_FDIR_CMP(f1, f2, queue)) 6601 return 1; 6602 return 0; 6603 } 6604 6605 /** 6606 * Search device flow list to find out a matched FDIR flow. 6607 * 6608 * @param dev 6609 * Pointer to Ethernet device. 6610 * @param fdir_flow 6611 * FDIR flow to lookup. 6612 * 6613 * @return 6614 * Index of flow if found, 0 otherwise. 6615 */ 6616 static uint32_t 6617 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow) 6618 { 6619 struct mlx5_priv *priv = dev->data->dev_private; 6620 uint32_t flow_idx = 0; 6621 struct mlx5_fdir_flow *priv_fdir_flow = NULL; 6622 6623 MLX5_ASSERT(fdir_flow); 6624 LIST_FOREACH(priv_fdir_flow, &priv->fdir_flows, next) { 6625 if (!flow_fdir_cmp(priv_fdir_flow->fdir, fdir_flow)) { 6626 DRV_LOG(DEBUG, "port %u found FDIR flow %u", 6627 dev->data->port_id, flow_idx); 6628 flow_idx = priv_fdir_flow->rix_flow; 6629 break; 6630 } 6631 } 6632 return flow_idx; 6633 } 6634 6635 /** 6636 * Add new flow director filter and store it in list. 6637 * 6638 * @param dev 6639 * Pointer to Ethernet device. 6640 * @param fdir_filter 6641 * Flow director filter to add. 6642 * 6643 * @return 6644 * 0 on success, a negative errno value otherwise and rte_errno is set. 6645 */ 6646 static int 6647 flow_fdir_filter_add(struct rte_eth_dev *dev, 6648 const struct rte_eth_fdir_filter *fdir_filter) 6649 { 6650 struct mlx5_priv *priv = dev->data->dev_private; 6651 struct mlx5_fdir *fdir_flow; 6652 struct rte_flow *flow; 6653 struct mlx5_fdir_flow *priv_fdir_flow = NULL; 6654 uint32_t flow_idx; 6655 int ret; 6656 6657 fdir_flow = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*fdir_flow), 0, 6658 SOCKET_ID_ANY); 6659 if (!fdir_flow) { 6660 rte_errno = ENOMEM; 6661 return -rte_errno; 6662 } 6663 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow); 6664 if (ret) 6665 goto error; 6666 flow_idx = flow_fdir_filter_lookup(dev, fdir_flow); 6667 if (flow_idx) { 6668 rte_errno = EEXIST; 6669 goto error; 6670 } 6671 priv_fdir_flow = mlx5_malloc(MLX5_MEM_ZERO, 6672 sizeof(struct mlx5_fdir_flow), 6673 0, SOCKET_ID_ANY); 6674 if (!priv_fdir_flow) { 6675 rte_errno = ENOMEM; 6676 goto error; 6677 } 6678 flow_idx = flow_list_create(dev, &priv->flows, &fdir_flow->attr, 6679 fdir_flow->items, fdir_flow->actions, true, 6680 NULL); 6681 flow = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], flow_idx); 6682 if (!flow) 6683 goto error; 6684 flow->fdir = 1; 6685 priv_fdir_flow->fdir = fdir_flow; 6686 priv_fdir_flow->rix_flow = flow_idx; 6687 LIST_INSERT_HEAD(&priv->fdir_flows, priv_fdir_flow, next); 6688 DRV_LOG(DEBUG, "port %u created FDIR flow %p", 6689 dev->data->port_id, (void *)flow); 6690 return 0; 6691 error: 6692 mlx5_free(priv_fdir_flow); 6693 mlx5_free(fdir_flow); 6694 return -rte_errno; 6695 } 6696 6697 /** 6698 * Delete specific filter. 6699 * 6700 * @param dev 6701 * Pointer to Ethernet device. 6702 * @param fdir_filter 6703 * Filter to be deleted. 6704 * 6705 * @return 6706 * 0 on success, a negative errno value otherwise and rte_errno is set. 6707 */ 6708 static int 6709 flow_fdir_filter_delete(struct rte_eth_dev *dev, 6710 const struct rte_eth_fdir_filter *fdir_filter) 6711 { 6712 struct mlx5_priv *priv = dev->data->dev_private; 6713 uint32_t flow_idx; 6714 struct mlx5_fdir fdir_flow = { 6715 .attr.group = 0, 6716 }; 6717 struct mlx5_fdir_flow *priv_fdir_flow = NULL; 6718 int ret; 6719 6720 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow); 6721 if (ret) 6722 return -rte_errno; 6723 LIST_FOREACH(priv_fdir_flow, &priv->fdir_flows, next) { 6724 /* Find the fdir in priv list */ 6725 if (!flow_fdir_cmp(priv_fdir_flow->fdir, &fdir_flow)) 6726 break; 6727 } 6728 if (!priv_fdir_flow) 6729 return 0; 6730 LIST_REMOVE(priv_fdir_flow, next); 6731 flow_idx = priv_fdir_flow->rix_flow; 6732 flow_list_destroy(dev, &priv->flows, flow_idx); 6733 mlx5_free(priv_fdir_flow->fdir); 6734 mlx5_free(priv_fdir_flow); 6735 DRV_LOG(DEBUG, "port %u deleted FDIR flow %u", 6736 dev->data->port_id, flow_idx); 6737 return 0; 6738 } 6739 6740 /** 6741 * Update queue for specific filter. 6742 * 6743 * @param dev 6744 * Pointer to Ethernet device. 6745 * @param fdir_filter 6746 * Filter to be updated. 6747 * 6748 * @return 6749 * 0 on success, a negative errno value otherwise and rte_errno is set. 6750 */ 6751 static int 6752 flow_fdir_filter_update(struct rte_eth_dev *dev, 6753 const struct rte_eth_fdir_filter *fdir_filter) 6754 { 6755 int ret; 6756 6757 ret = flow_fdir_filter_delete(dev, fdir_filter); 6758 if (ret) 6759 return ret; 6760 return flow_fdir_filter_add(dev, fdir_filter); 6761 } 6762 6763 /** 6764 * Flush all filters. 6765 * 6766 * @param dev 6767 * Pointer to Ethernet device. 6768 */ 6769 static void 6770 flow_fdir_filter_flush(struct rte_eth_dev *dev) 6771 { 6772 struct mlx5_priv *priv = dev->data->dev_private; 6773 struct mlx5_fdir_flow *priv_fdir_flow = NULL; 6774 6775 while (!LIST_EMPTY(&priv->fdir_flows)) { 6776 priv_fdir_flow = LIST_FIRST(&priv->fdir_flows); 6777 LIST_REMOVE(priv_fdir_flow, next); 6778 flow_list_destroy(dev, &priv->flows, priv_fdir_flow->rix_flow); 6779 mlx5_free(priv_fdir_flow->fdir); 6780 mlx5_free(priv_fdir_flow); 6781 } 6782 } 6783 6784 /** 6785 * Get flow director information. 6786 * 6787 * @param dev 6788 * Pointer to Ethernet device. 6789 * @param[out] fdir_info 6790 * Resulting flow director information. 6791 */ 6792 static void 6793 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info) 6794 { 6795 struct rte_eth_fdir_masks *mask = 6796 &dev->data->dev_conf.fdir_conf.mask; 6797 6798 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode; 6799 fdir_info->guarant_spc = 0; 6800 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask)); 6801 fdir_info->max_flexpayload = 0; 6802 fdir_info->flow_types_mask[0] = 0; 6803 fdir_info->flex_payload_unit = 0; 6804 fdir_info->max_flex_payload_segment_num = 0; 6805 fdir_info->flex_payload_limit = 0; 6806 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf)); 6807 } 6808 6809 /** 6810 * Deal with flow director operations. 6811 * 6812 * @param dev 6813 * Pointer to Ethernet device. 6814 * @param filter_op 6815 * Operation to perform. 6816 * @param arg 6817 * Pointer to operation-specific structure. 6818 * 6819 * @return 6820 * 0 on success, a negative errno value otherwise and rte_errno is set. 6821 */ 6822 static int 6823 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op, 6824 void *arg) 6825 { 6826 enum rte_fdir_mode fdir_mode = 6827 dev->data->dev_conf.fdir_conf.mode; 6828 6829 if (filter_op == RTE_ETH_FILTER_NOP) 6830 return 0; 6831 if (fdir_mode != RTE_FDIR_MODE_PERFECT && 6832 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) { 6833 DRV_LOG(ERR, "port %u flow director mode %d not supported", 6834 dev->data->port_id, fdir_mode); 6835 rte_errno = EINVAL; 6836 return -rte_errno; 6837 } 6838 switch (filter_op) { 6839 case RTE_ETH_FILTER_ADD: 6840 return flow_fdir_filter_add(dev, arg); 6841 case RTE_ETH_FILTER_UPDATE: 6842 return flow_fdir_filter_update(dev, arg); 6843 case RTE_ETH_FILTER_DELETE: 6844 return flow_fdir_filter_delete(dev, arg); 6845 case RTE_ETH_FILTER_FLUSH: 6846 flow_fdir_filter_flush(dev); 6847 break; 6848 case RTE_ETH_FILTER_INFO: 6849 flow_fdir_info_get(dev, arg); 6850 break; 6851 default: 6852 DRV_LOG(DEBUG, "port %u unknown operation %u", 6853 dev->data->port_id, filter_op); 6854 rte_errno = EINVAL; 6855 return -rte_errno; 6856 } 6857 return 0; 6858 } 6859 6860 /** 6861 * Manage filter operations. 6862 * 6863 * @param dev 6864 * Pointer to Ethernet device structure. 6865 * @param filter_type 6866 * Filter type. 6867 * @param filter_op 6868 * Operation to perform. 6869 * @param arg 6870 * Pointer to operation-specific structure. 6871 * 6872 * @return 6873 * 0 on success, a negative errno value otherwise and rte_errno is set. 6874 */ 6875 int 6876 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev, 6877 enum rte_filter_type filter_type, 6878 enum rte_filter_op filter_op, 6879 void *arg) 6880 { 6881 switch (filter_type) { 6882 case RTE_ETH_FILTER_GENERIC: 6883 if (filter_op != RTE_ETH_FILTER_GET) { 6884 rte_errno = EINVAL; 6885 return -rte_errno; 6886 } 6887 *(const void **)arg = &mlx5_flow_ops; 6888 return 0; 6889 case RTE_ETH_FILTER_FDIR: 6890 return flow_fdir_ctrl_func(dev, filter_op, arg); 6891 default: 6892 DRV_LOG(ERR, "port %u filter type (%d) not supported", 6893 dev->data->port_id, filter_type); 6894 rte_errno = ENOTSUP; 6895 return -rte_errno; 6896 } 6897 return 0; 6898 } 6899 6900 /** 6901 * Create the needed meter and suffix tables. 6902 * 6903 * @param[in] dev 6904 * Pointer to Ethernet device. 6905 * @param[in] fm 6906 * Pointer to the flow meter. 6907 * 6908 * @return 6909 * Pointer to table set on success, NULL otherwise. 6910 */ 6911 struct mlx5_meter_domains_infos * 6912 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev, 6913 const struct mlx5_flow_meter *fm) 6914 { 6915 const struct mlx5_flow_driver_ops *fops; 6916 6917 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 6918 return fops->create_mtr_tbls(dev, fm); 6919 } 6920 6921 /** 6922 * Destroy the meter table set. 6923 * 6924 * @param[in] dev 6925 * Pointer to Ethernet device. 6926 * @param[in] tbl 6927 * Pointer to the meter table set. 6928 * 6929 * @return 6930 * 0 on success. 6931 */ 6932 int 6933 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev, 6934 struct mlx5_meter_domains_infos *tbls) 6935 { 6936 const struct mlx5_flow_driver_ops *fops; 6937 6938 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 6939 return fops->destroy_mtr_tbls(dev, tbls); 6940 } 6941 6942 /** 6943 * Create policer rules. 6944 * 6945 * @param[in] dev 6946 * Pointer to Ethernet device. 6947 * @param[in] fm 6948 * Pointer to flow meter structure. 6949 * @param[in] attr 6950 * Pointer to flow attributes. 6951 * 6952 * @return 6953 * 0 on success, -1 otherwise. 6954 */ 6955 int 6956 mlx5_flow_create_policer_rules(struct rte_eth_dev *dev, 6957 struct mlx5_flow_meter *fm, 6958 const struct rte_flow_attr *attr) 6959 { 6960 const struct mlx5_flow_driver_ops *fops; 6961 6962 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 6963 return fops->create_policer_rules(dev, fm, attr); 6964 } 6965 6966 /** 6967 * Destroy policer rules. 6968 * 6969 * @param[in] fm 6970 * Pointer to flow meter structure. 6971 * @param[in] attr 6972 * Pointer to flow attributes. 6973 * 6974 * @return 6975 * 0 on success, -1 otherwise. 6976 */ 6977 int 6978 mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev, 6979 struct mlx5_flow_meter *fm, 6980 const struct rte_flow_attr *attr) 6981 { 6982 const struct mlx5_flow_driver_ops *fops; 6983 6984 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 6985 return fops->destroy_policer_rules(dev, fm, attr); 6986 } 6987 6988 /** 6989 * Allocate a counter. 6990 * 6991 * @param[in] dev 6992 * Pointer to Ethernet device structure. 6993 * 6994 * @return 6995 * Index to allocated counter on success, 0 otherwise. 6996 */ 6997 uint32_t 6998 mlx5_counter_alloc(struct rte_eth_dev *dev) 6999 { 7000 const struct mlx5_flow_driver_ops *fops; 7001 struct rte_flow_attr attr = { .transfer = 0 }; 7002 7003 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { 7004 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 7005 return fops->counter_alloc(dev); 7006 } 7007 DRV_LOG(ERR, 7008 "port %u counter allocate is not supported.", 7009 dev->data->port_id); 7010 return 0; 7011 } 7012 7013 /** 7014 * Free a counter. 7015 * 7016 * @param[in] dev 7017 * Pointer to Ethernet device structure. 7018 * @param[in] cnt 7019 * Index to counter to be free. 7020 */ 7021 void 7022 mlx5_counter_free(struct rte_eth_dev *dev, uint32_t cnt) 7023 { 7024 const struct mlx5_flow_driver_ops *fops; 7025 struct rte_flow_attr attr = { .transfer = 0 }; 7026 7027 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { 7028 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 7029 fops->counter_free(dev, cnt); 7030 return; 7031 } 7032 DRV_LOG(ERR, 7033 "port %u counter free is not supported.", 7034 dev->data->port_id); 7035 } 7036 7037 /** 7038 * Query counter statistics. 7039 * 7040 * @param[in] dev 7041 * Pointer to Ethernet device structure. 7042 * @param[in] cnt 7043 * Index to counter to query. 7044 * @param[in] clear 7045 * Set to clear counter statistics. 7046 * @param[out] pkts 7047 * The counter hits packets number to save. 7048 * @param[out] bytes 7049 * The counter hits bytes number to save. 7050 * 7051 * @return 7052 * 0 on success, a negative errno value otherwise. 7053 */ 7054 int 7055 mlx5_counter_query(struct rte_eth_dev *dev, uint32_t cnt, 7056 bool clear, uint64_t *pkts, uint64_t *bytes) 7057 { 7058 const struct mlx5_flow_driver_ops *fops; 7059 struct rte_flow_attr attr = { .transfer = 0 }; 7060 7061 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { 7062 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 7063 return fops->counter_query(dev, cnt, clear, pkts, bytes); 7064 } 7065 DRV_LOG(ERR, 7066 "port %u counter query is not supported.", 7067 dev->data->port_id); 7068 return -ENOTSUP; 7069 } 7070 7071 /** 7072 * Allocate a new memory for the counter values wrapped by all the needed 7073 * management. 7074 * 7075 * @param[in] sh 7076 * Pointer to mlx5_dev_ctx_shared object. 7077 * 7078 * @return 7079 * 0 on success, a negative errno value otherwise. 7080 */ 7081 static int 7082 mlx5_flow_create_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh) 7083 { 7084 struct mlx5_devx_mkey_attr mkey_attr; 7085 struct mlx5_counter_stats_mem_mng *mem_mng; 7086 volatile struct flow_counter_stats *raw_data; 7087 int raws_n = MLX5_CNT_CONTAINER_RESIZE + MLX5_MAX_PENDING_QUERIES; 7088 int size = (sizeof(struct flow_counter_stats) * 7089 MLX5_COUNTERS_PER_POOL + 7090 sizeof(struct mlx5_counter_stats_raw)) * raws_n + 7091 sizeof(struct mlx5_counter_stats_mem_mng); 7092 size_t pgsize = rte_mem_page_size(); 7093 uint8_t *mem; 7094 int i; 7095 7096 if (pgsize == (size_t)-1) { 7097 DRV_LOG(ERR, "Failed to get mem page size"); 7098 rte_errno = ENOMEM; 7099 return -ENOMEM; 7100 } 7101 mem = mlx5_malloc(MLX5_MEM_ZERO, size, pgsize, SOCKET_ID_ANY); 7102 if (!mem) { 7103 rte_errno = ENOMEM; 7104 return -ENOMEM; 7105 } 7106 mem_mng = (struct mlx5_counter_stats_mem_mng *)(mem + size) - 1; 7107 size = sizeof(*raw_data) * MLX5_COUNTERS_PER_POOL * raws_n; 7108 mem_mng->umem = mlx5_glue->devx_umem_reg(sh->ctx, mem, size, 7109 IBV_ACCESS_LOCAL_WRITE); 7110 if (!mem_mng->umem) { 7111 rte_errno = errno; 7112 mlx5_free(mem); 7113 return -rte_errno; 7114 } 7115 mkey_attr.addr = (uintptr_t)mem; 7116 mkey_attr.size = size; 7117 mkey_attr.umem_id = mlx5_os_get_umem_id(mem_mng->umem); 7118 mkey_attr.pd = sh->pdn; 7119 mkey_attr.log_entity_size = 0; 7120 mkey_attr.pg_access = 0; 7121 mkey_attr.klm_array = NULL; 7122 mkey_attr.klm_num = 0; 7123 mkey_attr.relaxed_ordering = sh->cmng.relaxed_ordering; 7124 mem_mng->dm = mlx5_devx_cmd_mkey_create(sh->ctx, &mkey_attr); 7125 if (!mem_mng->dm) { 7126 mlx5_glue->devx_umem_dereg(mem_mng->umem); 7127 rte_errno = errno; 7128 mlx5_free(mem); 7129 return -rte_errno; 7130 } 7131 mem_mng->raws = (struct mlx5_counter_stats_raw *)(mem + size); 7132 raw_data = (volatile struct flow_counter_stats *)mem; 7133 for (i = 0; i < raws_n; ++i) { 7134 mem_mng->raws[i].mem_mng = mem_mng; 7135 mem_mng->raws[i].data = raw_data + i * MLX5_COUNTERS_PER_POOL; 7136 } 7137 for (i = 0; i < MLX5_MAX_PENDING_QUERIES; ++i) 7138 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, 7139 mem_mng->raws + MLX5_CNT_CONTAINER_RESIZE + i, 7140 next); 7141 LIST_INSERT_HEAD(&sh->cmng.mem_mngs, mem_mng, next); 7142 sh->cmng.mem_mng = mem_mng; 7143 return 0; 7144 } 7145 7146 /** 7147 * Set the statistic memory to the new counter pool. 7148 * 7149 * @param[in] sh 7150 * Pointer to mlx5_dev_ctx_shared object. 7151 * @param[in] pool 7152 * Pointer to the pool to set the statistic memory. 7153 * 7154 * @return 7155 * 0 on success, a negative errno value otherwise. 7156 */ 7157 static int 7158 mlx5_flow_set_counter_stat_mem(struct mlx5_dev_ctx_shared *sh, 7159 struct mlx5_flow_counter_pool *pool) 7160 { 7161 struct mlx5_flow_counter_mng *cmng = &sh->cmng; 7162 /* Resize statistic memory once used out. */ 7163 if (!(pool->index % MLX5_CNT_CONTAINER_RESIZE) && 7164 mlx5_flow_create_counter_stat_mem_mng(sh)) { 7165 DRV_LOG(ERR, "Cannot resize counter stat mem."); 7166 return -1; 7167 } 7168 rte_spinlock_lock(&pool->sl); 7169 pool->raw = cmng->mem_mng->raws + pool->index % 7170 MLX5_CNT_CONTAINER_RESIZE; 7171 rte_spinlock_unlock(&pool->sl); 7172 pool->raw_hw = NULL; 7173 return 0; 7174 } 7175 7176 #define MLX5_POOL_QUERY_FREQ_US 1000000 7177 7178 /** 7179 * Set the periodic procedure for triggering asynchronous batch queries for all 7180 * the counter pools. 7181 * 7182 * @param[in] sh 7183 * Pointer to mlx5_dev_ctx_shared object. 7184 */ 7185 void 7186 mlx5_set_query_alarm(struct mlx5_dev_ctx_shared *sh) 7187 { 7188 uint32_t pools_n, us; 7189 7190 pools_n = __atomic_load_n(&sh->cmng.n_valid, __ATOMIC_RELAXED); 7191 us = MLX5_POOL_QUERY_FREQ_US / pools_n; 7192 DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us); 7193 if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) { 7194 sh->cmng.query_thread_on = 0; 7195 DRV_LOG(ERR, "Cannot reinitialize query alarm"); 7196 } else { 7197 sh->cmng.query_thread_on = 1; 7198 } 7199 } 7200 7201 /** 7202 * The periodic procedure for triggering asynchronous batch queries for all the 7203 * counter pools. This function is probably called by the host thread. 7204 * 7205 * @param[in] arg 7206 * The parameter for the alarm process. 7207 */ 7208 void 7209 mlx5_flow_query_alarm(void *arg) 7210 { 7211 struct mlx5_dev_ctx_shared *sh = arg; 7212 int ret; 7213 uint16_t pool_index = sh->cmng.pool_index; 7214 struct mlx5_flow_counter_mng *cmng = &sh->cmng; 7215 struct mlx5_flow_counter_pool *pool; 7216 uint16_t n_valid; 7217 7218 if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES) 7219 goto set_alarm; 7220 rte_spinlock_lock(&cmng->pool_update_sl); 7221 pool = cmng->pools[pool_index]; 7222 n_valid = cmng->n_valid; 7223 rte_spinlock_unlock(&cmng->pool_update_sl); 7224 /* Set the statistic memory to the new created pool. */ 7225 if ((!pool->raw && mlx5_flow_set_counter_stat_mem(sh, pool))) 7226 goto set_alarm; 7227 if (pool->raw_hw) 7228 /* There is a pool query in progress. */ 7229 goto set_alarm; 7230 pool->raw_hw = 7231 LIST_FIRST(&sh->cmng.free_stat_raws); 7232 if (!pool->raw_hw) 7233 /* No free counter statistics raw memory. */ 7234 goto set_alarm; 7235 /* 7236 * Identify the counters released between query trigger and query 7237 * handle more efficiently. The counter released in this gap period 7238 * should wait for a new round of query as the new arrived packets 7239 * will not be taken into account. 7240 */ 7241 pool->query_gen++; 7242 ret = mlx5_devx_cmd_flow_counter_query(pool->min_dcs, 0, 7243 MLX5_COUNTERS_PER_POOL, 7244 NULL, NULL, 7245 pool->raw_hw->mem_mng->dm->id, 7246 (void *)(uintptr_t) 7247 pool->raw_hw->data, 7248 sh->devx_comp, 7249 (uint64_t)(uintptr_t)pool); 7250 if (ret) { 7251 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID" 7252 " %d", pool->min_dcs->id); 7253 pool->raw_hw = NULL; 7254 goto set_alarm; 7255 } 7256 LIST_REMOVE(pool->raw_hw, next); 7257 sh->cmng.pending_queries++; 7258 pool_index++; 7259 if (pool_index >= n_valid) 7260 pool_index = 0; 7261 set_alarm: 7262 sh->cmng.pool_index = pool_index; 7263 mlx5_set_query_alarm(sh); 7264 } 7265 7266 /** 7267 * Check and callback event for new aged flow in the counter pool 7268 * 7269 * @param[in] sh 7270 * Pointer to mlx5_dev_ctx_shared object. 7271 * @param[in] pool 7272 * Pointer to Current counter pool. 7273 */ 7274 static void 7275 mlx5_flow_aging_check(struct mlx5_dev_ctx_shared *sh, 7276 struct mlx5_flow_counter_pool *pool) 7277 { 7278 struct mlx5_priv *priv; 7279 struct mlx5_flow_counter *cnt; 7280 struct mlx5_age_info *age_info; 7281 struct mlx5_age_param *age_param; 7282 struct mlx5_counter_stats_raw *cur = pool->raw_hw; 7283 struct mlx5_counter_stats_raw *prev = pool->raw; 7284 const uint64_t curr_time = MLX5_CURR_TIME_SEC; 7285 const uint32_t time_delta = curr_time - pool->time_of_last_age_check; 7286 uint16_t expected = AGE_CANDIDATE; 7287 uint32_t i; 7288 7289 pool->time_of_last_age_check = curr_time; 7290 for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) { 7291 cnt = MLX5_POOL_GET_CNT(pool, i); 7292 age_param = MLX5_CNT_TO_AGE(cnt); 7293 if (__atomic_load_n(&age_param->state, 7294 __ATOMIC_RELAXED) != AGE_CANDIDATE) 7295 continue; 7296 if (cur->data[i].hits != prev->data[i].hits) { 7297 __atomic_store_n(&age_param->sec_since_last_hit, 0, 7298 __ATOMIC_RELAXED); 7299 continue; 7300 } 7301 if (__atomic_add_fetch(&age_param->sec_since_last_hit, 7302 time_delta, 7303 __ATOMIC_RELAXED) <= age_param->timeout) 7304 continue; 7305 /** 7306 * Hold the lock first, or if between the 7307 * state AGE_TMOUT and tailq operation the 7308 * release happened, the release procedure 7309 * may delete a non-existent tailq node. 7310 */ 7311 priv = rte_eth_devices[age_param->port_id].data->dev_private; 7312 age_info = GET_PORT_AGE_INFO(priv); 7313 rte_spinlock_lock(&age_info->aged_sl); 7314 if (__atomic_compare_exchange_n(&age_param->state, &expected, 7315 AGE_TMOUT, false, 7316 __ATOMIC_RELAXED, 7317 __ATOMIC_RELAXED)) { 7318 TAILQ_INSERT_TAIL(&age_info->aged_counters, cnt, next); 7319 MLX5_AGE_SET(age_info, MLX5_AGE_EVENT_NEW); 7320 } 7321 rte_spinlock_unlock(&age_info->aged_sl); 7322 } 7323 for (i = 0; i < sh->max_port; i++) { 7324 age_info = &sh->port[i].age_info; 7325 if (!MLX5_AGE_GET(age_info, MLX5_AGE_EVENT_NEW)) 7326 continue; 7327 if (MLX5_AGE_GET(age_info, MLX5_AGE_TRIGGER)) 7328 rte_eth_dev_callback_process 7329 (&rte_eth_devices[sh->port[i].devx_ih_port_id], 7330 RTE_ETH_EVENT_FLOW_AGED, NULL); 7331 age_info->flags = 0; 7332 } 7333 } 7334 7335 /** 7336 * Handler for the HW respond about ready values from an asynchronous batch 7337 * query. This function is probably called by the host thread. 7338 * 7339 * @param[in] sh 7340 * The pointer to the shared device context. 7341 * @param[in] async_id 7342 * The Devx async ID. 7343 * @param[in] status 7344 * The status of the completion. 7345 */ 7346 void 7347 mlx5_flow_async_pool_query_handle(struct mlx5_dev_ctx_shared *sh, 7348 uint64_t async_id, int status) 7349 { 7350 struct mlx5_flow_counter_pool *pool = 7351 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id; 7352 struct mlx5_counter_stats_raw *raw_to_free; 7353 uint8_t query_gen = pool->query_gen ^ 1; 7354 struct mlx5_flow_counter_mng *cmng = &sh->cmng; 7355 enum mlx5_counter_type cnt_type = 7356 pool->is_aged ? MLX5_COUNTER_TYPE_AGE : 7357 MLX5_COUNTER_TYPE_ORIGIN; 7358 7359 if (unlikely(status)) { 7360 raw_to_free = pool->raw_hw; 7361 } else { 7362 raw_to_free = pool->raw; 7363 if (pool->is_aged) 7364 mlx5_flow_aging_check(sh, pool); 7365 rte_spinlock_lock(&pool->sl); 7366 pool->raw = pool->raw_hw; 7367 rte_spinlock_unlock(&pool->sl); 7368 /* Be sure the new raw counters data is updated in memory. */ 7369 rte_io_wmb(); 7370 if (!TAILQ_EMPTY(&pool->counters[query_gen])) { 7371 rte_spinlock_lock(&cmng->csl[cnt_type]); 7372 TAILQ_CONCAT(&cmng->counters[cnt_type], 7373 &pool->counters[query_gen], next); 7374 rte_spinlock_unlock(&cmng->csl[cnt_type]); 7375 } 7376 } 7377 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next); 7378 pool->raw_hw = NULL; 7379 sh->cmng.pending_queries--; 7380 } 7381 7382 static const struct mlx5_flow_tbl_data_entry * 7383 tunnel_mark_decode(struct rte_eth_dev *dev, uint32_t mark) 7384 { 7385 struct mlx5_priv *priv = dev->data->dev_private; 7386 struct mlx5_dev_ctx_shared *sh = priv->sh; 7387 struct mlx5_hlist_entry *he; 7388 union tunnel_offload_mark mbits = { .val = mark }; 7389 union mlx5_flow_tbl_key table_key = { 7390 { 7391 .table_id = tunnel_id_to_flow_tbl(mbits.table_id), 7392 .dummy = 0, 7393 .domain = !!mbits.transfer, 7394 .direction = 0, 7395 } 7396 }; 7397 he = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64, NULL); 7398 return he ? 7399 container_of(he, struct mlx5_flow_tbl_data_entry, entry) : NULL; 7400 } 7401 7402 static void 7403 mlx5_flow_tunnel_grp2tbl_remove_cb(struct mlx5_hlist *list, 7404 struct mlx5_hlist_entry *entry) 7405 { 7406 struct mlx5_dev_ctx_shared *sh = list->ctx; 7407 struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash); 7408 7409 mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID], 7410 tunnel_flow_tbl_to_id(tte->flow_table)); 7411 mlx5_free(tte); 7412 } 7413 7414 static struct mlx5_hlist_entry * 7415 mlx5_flow_tunnel_grp2tbl_create_cb(struct mlx5_hlist *list, 7416 uint64_t key __rte_unused, 7417 void *ctx __rte_unused) 7418 { 7419 struct mlx5_dev_ctx_shared *sh = list->ctx; 7420 struct tunnel_tbl_entry *tte; 7421 7422 tte = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, 7423 sizeof(*tte), 0, 7424 SOCKET_ID_ANY); 7425 if (!tte) 7426 goto err; 7427 mlx5_ipool_malloc(sh->ipool[MLX5_IPOOL_TNL_TBL_ID], 7428 &tte->flow_table); 7429 if (tte->flow_table >= MLX5_MAX_TABLES) { 7430 DRV_LOG(ERR, "Tunnel TBL ID %d exceed max limit.", 7431 tte->flow_table); 7432 mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID], 7433 tte->flow_table); 7434 goto err; 7435 } else if (!tte->flow_table) { 7436 goto err; 7437 } 7438 tte->flow_table = tunnel_id_to_flow_tbl(tte->flow_table); 7439 return &tte->hash; 7440 err: 7441 if (tte) 7442 mlx5_free(tte); 7443 return NULL; 7444 } 7445 7446 static uint32_t 7447 tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev, 7448 const struct mlx5_flow_tunnel *tunnel, 7449 uint32_t group, uint32_t *table, 7450 struct rte_flow_error *error) 7451 { 7452 struct mlx5_hlist_entry *he; 7453 struct tunnel_tbl_entry *tte; 7454 union tunnel_tbl_key key = { 7455 .tunnel_id = tunnel ? tunnel->tunnel_id : 0, 7456 .group = group 7457 }; 7458 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); 7459 struct mlx5_hlist *group_hash; 7460 7461 group_hash = tunnel ? tunnel->groups : thub->groups; 7462 he = mlx5_hlist_register(group_hash, key.val, NULL); 7463 if (!he) 7464 return rte_flow_error_set(error, EINVAL, 7465 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, 7466 NULL, 7467 "tunnel group index not supported"); 7468 tte = container_of(he, typeof(*tte), hash); 7469 *table = tte->flow_table; 7470 DRV_LOG(DEBUG, "port %u tunnel %u group=%#x table=%#x", 7471 dev->data->port_id, key.tunnel_id, group, *table); 7472 return 0; 7473 } 7474 7475 static int 7476 flow_group_to_table(uint32_t port_id, uint32_t group, uint32_t *table, 7477 struct flow_grp_info grp_info, struct rte_flow_error *error) 7478 { 7479 if (grp_info.transfer && grp_info.external && grp_info.fdb_def_rule) { 7480 if (group == UINT32_MAX) 7481 return rte_flow_error_set 7482 (error, EINVAL, 7483 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, 7484 NULL, 7485 "group index not supported"); 7486 *table = group + 1; 7487 } else { 7488 *table = group; 7489 } 7490 DRV_LOG(DEBUG, "port %u group=%#x table=%#x", port_id, group, *table); 7491 return 0; 7492 } 7493 7494 /** 7495 * Translate the rte_flow group index to HW table value. 7496 * 7497 * If tunnel offload is disabled, all group ids converted to flow table 7498 * id using the standard method. 7499 * If tunnel offload is enabled, group id can be converted using the 7500 * standard or tunnel conversion method. Group conversion method 7501 * selection depends on flags in `grp_info` parameter: 7502 * - Internal (grp_info.external == 0) groups conversion uses the 7503 * standard method. 7504 * - Group ids in JUMP action converted with the tunnel conversion. 7505 * - Group id in rule attribute conversion depends on a rule type and 7506 * group id value: 7507 * ** non zero group attributes converted with the tunnel method 7508 * ** zero group attribute in non-tunnel rule is converted using the 7509 * standard method - there's only one root table 7510 * ** zero group attribute in steer tunnel rule is converted with the 7511 * standard method - single root table 7512 * ** zero group attribute in match tunnel rule is a special OvS 7513 * case: that value is used for portability reasons. That group 7514 * id is converted with the tunnel conversion method. 7515 * 7516 * @param[in] dev 7517 * Port device 7518 * @param[in] tunnel 7519 * PMD tunnel offload object 7520 * @param[in] group 7521 * rte_flow group index value. 7522 * @param[out] table 7523 * HW table value. 7524 * @param[in] grp_info 7525 * flags used for conversion 7526 * @param[out] error 7527 * Pointer to error structure. 7528 * 7529 * @return 7530 * 0 on success, a negative errno value otherwise and rte_errno is set. 7531 */ 7532 int 7533 mlx5_flow_group_to_table(struct rte_eth_dev *dev, 7534 const struct mlx5_flow_tunnel *tunnel, 7535 uint32_t group, uint32_t *table, 7536 struct flow_grp_info grp_info, 7537 struct rte_flow_error *error) 7538 { 7539 int ret; 7540 bool standard_translation; 7541 7542 if (grp_info.external && group < MLX5_MAX_TABLES_EXTERNAL) 7543 group *= MLX5_FLOW_TABLE_FACTOR; 7544 if (is_tunnel_offload_active(dev)) { 7545 standard_translation = !grp_info.external || 7546 grp_info.std_tbl_fix; 7547 } else { 7548 standard_translation = true; 7549 } 7550 DRV_LOG(DEBUG, 7551 "port %u group=%#x transfer=%d external=%d fdb_def_rule=%d translate=%s", 7552 dev->data->port_id, group, grp_info.transfer, 7553 grp_info.external, grp_info.fdb_def_rule, 7554 standard_translation ? "STANDARD" : "TUNNEL"); 7555 if (standard_translation) 7556 ret = flow_group_to_table(dev->data->port_id, group, table, 7557 grp_info, error); 7558 else 7559 ret = tunnel_flow_group_to_flow_table(dev, tunnel, group, 7560 table, error); 7561 7562 return ret; 7563 } 7564 7565 /** 7566 * Discover availability of metadata reg_c's. 7567 * 7568 * Iteratively use test flows to check availability. 7569 * 7570 * @param[in] dev 7571 * Pointer to the Ethernet device structure. 7572 * 7573 * @return 7574 * 0 on success, a negative errno value otherwise and rte_errno is set. 7575 */ 7576 int 7577 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev) 7578 { 7579 struct mlx5_priv *priv = dev->data->dev_private; 7580 struct mlx5_dev_config *config = &priv->config; 7581 enum modify_reg idx; 7582 int n = 0; 7583 7584 /* reg_c[0] and reg_c[1] are reserved. */ 7585 config->flow_mreg_c[n++] = REG_C_0; 7586 config->flow_mreg_c[n++] = REG_C_1; 7587 /* Discover availability of other reg_c's. */ 7588 for (idx = REG_C_2; idx <= REG_C_7; ++idx) { 7589 struct rte_flow_attr attr = { 7590 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP, 7591 .priority = MLX5_FLOW_PRIO_RSVD, 7592 .ingress = 1, 7593 }; 7594 struct rte_flow_item items[] = { 7595 [0] = { 7596 .type = RTE_FLOW_ITEM_TYPE_END, 7597 }, 7598 }; 7599 struct rte_flow_action actions[] = { 7600 [0] = { 7601 .type = (enum rte_flow_action_type) 7602 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, 7603 .conf = &(struct mlx5_flow_action_copy_mreg){ 7604 .src = REG_C_1, 7605 .dst = idx, 7606 }, 7607 }, 7608 [1] = { 7609 .type = RTE_FLOW_ACTION_TYPE_JUMP, 7610 .conf = &(struct rte_flow_action_jump){ 7611 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP, 7612 }, 7613 }, 7614 [2] = { 7615 .type = RTE_FLOW_ACTION_TYPE_END, 7616 }, 7617 }; 7618 uint32_t flow_idx; 7619 struct rte_flow *flow; 7620 struct rte_flow_error error; 7621 7622 if (!config->dv_flow_en) 7623 break; 7624 /* Create internal flow, validation skips copy action. */ 7625 flow_idx = flow_list_create(dev, NULL, &attr, items, 7626 actions, false, &error); 7627 flow = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], 7628 flow_idx); 7629 if (!flow) 7630 continue; 7631 if (dev->data->dev_started || !flow_drv_apply(dev, flow, NULL)) 7632 config->flow_mreg_c[n++] = idx; 7633 flow_list_destroy(dev, NULL, flow_idx); 7634 } 7635 for (; n < MLX5_MREG_C_NUM; ++n) 7636 config->flow_mreg_c[n] = REG_NON; 7637 return 0; 7638 } 7639 7640 /** 7641 * Dump flow raw hw data to file 7642 * 7643 * @param[in] dev 7644 * The pointer to Ethernet device. 7645 * @param[in] file 7646 * A pointer to a file for output. 7647 * @param[out] error 7648 * Perform verbose error reporting if not NULL. PMDs initialize this 7649 * structure in case of error only. 7650 * @return 7651 * 0 on success, a nagative value otherwise. 7652 */ 7653 int 7654 mlx5_flow_dev_dump(struct rte_eth_dev *dev, 7655 FILE *file, 7656 struct rte_flow_error *error __rte_unused) 7657 { 7658 struct mlx5_priv *priv = dev->data->dev_private; 7659 struct mlx5_dev_ctx_shared *sh = priv->sh; 7660 7661 if (!priv->config.dv_flow_en) { 7662 if (fputs("device dv flow disabled\n", file) <= 0) 7663 return -errno; 7664 return -ENOTSUP; 7665 } 7666 return mlx5_devx_cmd_flow_dump(sh->fdb_domain, sh->rx_domain, 7667 sh->tx_domain, file); 7668 } 7669 7670 /** 7671 * Get aged-out flows. 7672 * 7673 * @param[in] dev 7674 * Pointer to the Ethernet device structure. 7675 * @param[in] context 7676 * The address of an array of pointers to the aged-out flows contexts. 7677 * @param[in] nb_countexts 7678 * The length of context array pointers. 7679 * @param[out] error 7680 * Perform verbose error reporting if not NULL. Initialized in case of 7681 * error only. 7682 * 7683 * @return 7684 * how many contexts get in success, otherwise negative errno value. 7685 * if nb_contexts is 0, return the amount of all aged contexts. 7686 * if nb_contexts is not 0 , return the amount of aged flows reported 7687 * in the context array. 7688 */ 7689 int 7690 mlx5_flow_get_aged_flows(struct rte_eth_dev *dev, void **contexts, 7691 uint32_t nb_contexts, struct rte_flow_error *error) 7692 { 7693 const struct mlx5_flow_driver_ops *fops; 7694 struct rte_flow_attr attr = { .transfer = 0 }; 7695 7696 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { 7697 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); 7698 return fops->get_aged_flows(dev, contexts, nb_contexts, 7699 error); 7700 } 7701 DRV_LOG(ERR, 7702 "port %u get aged flows is not supported.", 7703 dev->data->port_id); 7704 return -ENOTSUP; 7705 } 7706 7707 /* Wrapper for driver action_validate op callback */ 7708 static int 7709 flow_drv_action_validate(struct rte_eth_dev *dev, 7710 const struct rte_flow_shared_action_conf *conf, 7711 const struct rte_flow_action *action, 7712 const struct mlx5_flow_driver_ops *fops, 7713 struct rte_flow_error *error) 7714 { 7715 static const char err_msg[] = "shared action validation unsupported"; 7716 7717 if (!fops->action_validate) { 7718 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); 7719 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 7720 NULL, err_msg); 7721 return -rte_errno; 7722 } 7723 return fops->action_validate(dev, conf, action, error); 7724 } 7725 7726 /** 7727 * Destroys the shared action by handle. 7728 * 7729 * @param dev 7730 * Pointer to Ethernet device structure. 7731 * @param[in] action 7732 * Handle for the shared action to be destroyed. 7733 * @param[out] error 7734 * Perform verbose error reporting if not NULL. PMDs initialize this 7735 * structure in case of error only. 7736 * 7737 * @return 7738 * 0 on success, a negative errno value otherwise and rte_errno is set. 7739 * 7740 * @note: wrapper for driver action_create op callback. 7741 */ 7742 static int 7743 mlx5_shared_action_destroy(struct rte_eth_dev *dev, 7744 struct rte_flow_shared_action *action, 7745 struct rte_flow_error *error) 7746 { 7747 static const char err_msg[] = "shared action destruction unsupported"; 7748 struct rte_flow_attr attr = { .transfer = 0 }; 7749 const struct mlx5_flow_driver_ops *fops = 7750 flow_get_drv_ops(flow_get_drv_type(dev, &attr)); 7751 7752 if (!fops->action_destroy) { 7753 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); 7754 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 7755 NULL, err_msg); 7756 return -rte_errno; 7757 } 7758 return fops->action_destroy(dev, action, error); 7759 } 7760 7761 /* Wrapper for driver action_destroy op callback */ 7762 static int 7763 flow_drv_action_update(struct rte_eth_dev *dev, 7764 struct rte_flow_shared_action *action, 7765 const void *action_conf, 7766 const struct mlx5_flow_driver_ops *fops, 7767 struct rte_flow_error *error) 7768 { 7769 static const char err_msg[] = "shared action update unsupported"; 7770 7771 if (!fops->action_update) { 7772 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); 7773 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 7774 NULL, err_msg); 7775 return -rte_errno; 7776 } 7777 return fops->action_update(dev, action, action_conf, error); 7778 } 7779 7780 /** 7781 * Create shared action for reuse in multiple flow rules. 7782 * 7783 * @param dev 7784 * Pointer to Ethernet device structure. 7785 * @param[in] action 7786 * Action configuration for shared action creation. 7787 * @param[out] error 7788 * Perform verbose error reporting if not NULL. PMDs initialize this 7789 * structure in case of error only. 7790 * @return 7791 * A valid handle in case of success, NULL otherwise and rte_errno is set. 7792 */ 7793 static struct rte_flow_shared_action * 7794 mlx5_shared_action_create(struct rte_eth_dev *dev, 7795 const struct rte_flow_shared_action_conf *conf, 7796 const struct rte_flow_action *action, 7797 struct rte_flow_error *error) 7798 { 7799 static const char err_msg[] = "shared action creation unsupported"; 7800 struct rte_flow_attr attr = { .transfer = 0 }; 7801 const struct mlx5_flow_driver_ops *fops = 7802 flow_get_drv_ops(flow_get_drv_type(dev, &attr)); 7803 7804 if (flow_drv_action_validate(dev, conf, action, fops, error)) 7805 return NULL; 7806 if (!fops->action_create) { 7807 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); 7808 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, 7809 NULL, err_msg); 7810 return NULL; 7811 } 7812 return fops->action_create(dev, conf, action, error); 7813 } 7814 7815 /** 7816 * Updates inplace the shared action configuration pointed by *action* handle 7817 * with the configuration provided as *action* argument. 7818 * The update of the shared action configuration effects all flow rules reusing 7819 * the action via handle. 7820 * 7821 * @param dev 7822 * Pointer to Ethernet device structure. 7823 * @param[in] shared_action 7824 * Handle for the shared action to be updated. 7825 * @param[in] action 7826 * Action specification used to modify the action pointed by handle. 7827 * *action* should be of same type with the action pointed by the *action* 7828 * handle argument, otherwise considered as invalid. 7829 * @param[out] error 7830 * Perform verbose error reporting if not NULL. PMDs initialize this 7831 * structure in case of error only. 7832 * 7833 * @return 7834 * 0 on success, a negative errno value otherwise and rte_errno is set. 7835 */ 7836 static int 7837 mlx5_shared_action_update(struct rte_eth_dev *dev, 7838 struct rte_flow_shared_action *shared_action, 7839 const struct rte_flow_action *action, 7840 struct rte_flow_error *error) 7841 { 7842 struct rte_flow_attr attr = { .transfer = 0 }; 7843 const struct mlx5_flow_driver_ops *fops = 7844 flow_get_drv_ops(flow_get_drv_type(dev, &attr)); 7845 int ret; 7846 7847 switch (shared_action->type) { 7848 case MLX5_RTE_FLOW_ACTION_TYPE_SHARED_RSS: 7849 if (action->type != RTE_FLOW_ACTION_TYPE_RSS) { 7850 return rte_flow_error_set(error, EINVAL, 7851 RTE_FLOW_ERROR_TYPE_ACTION, 7852 NULL, 7853 "update action type invalid"); 7854 } 7855 ret = flow_drv_action_validate(dev, NULL, action, fops, error); 7856 if (ret) 7857 return ret; 7858 return flow_drv_action_update(dev, shared_action, action->conf, 7859 fops, error); 7860 default: 7861 return rte_flow_error_set(error, ENOTSUP, 7862 RTE_FLOW_ERROR_TYPE_ACTION, 7863 NULL, 7864 "action type not supported"); 7865 } 7866 } 7867 7868 /** 7869 * Query the shared action by handle. 7870 * 7871 * This function allows retrieving action-specific data such as counters. 7872 * Data is gathered by special action which may be present/referenced in 7873 * more than one flow rule definition. 7874 * 7875 * \see RTE_FLOW_ACTION_TYPE_COUNT 7876 * 7877 * @param dev 7878 * Pointer to Ethernet device structure. 7879 * @param[in] action 7880 * Handle for the shared action to query. 7881 * @param[in, out] data 7882 * Pointer to storage for the associated query data type. 7883 * @param[out] error 7884 * Perform verbose error reporting if not NULL. PMDs initialize this 7885 * structure in case of error only. 7886 * 7887 * @return 7888 * 0 on success, a negative errno value otherwise and rte_errno is set. 7889 */ 7890 static int 7891 mlx5_shared_action_query(struct rte_eth_dev *dev, 7892 const struct rte_flow_shared_action *action, 7893 void *data, 7894 struct rte_flow_error *error) 7895 { 7896 (void)dev; 7897 switch (action->type) { 7898 case MLX5_RTE_FLOW_ACTION_TYPE_SHARED_RSS: 7899 __atomic_load(&action->refcnt, (uint32_t *)data, 7900 __ATOMIC_RELAXED); 7901 return 0; 7902 default: 7903 return rte_flow_error_set(error, ENOTSUP, 7904 RTE_FLOW_ERROR_TYPE_ACTION, 7905 NULL, 7906 "action type not supported"); 7907 } 7908 } 7909 7910 /** 7911 * Destroy all shared actions. 7912 * 7913 * @param dev 7914 * Pointer to Ethernet device. 7915 * 7916 * @return 7917 * 0 on success, a negative errno value otherwise and rte_errno is set. 7918 */ 7919 int 7920 mlx5_shared_action_flush(struct rte_eth_dev *dev) 7921 { 7922 struct rte_flow_error error; 7923 struct mlx5_priv *priv = dev->data->dev_private; 7924 struct rte_flow_shared_action *action; 7925 int ret = 0; 7926 7927 while (!LIST_EMPTY(&priv->shared_actions)) { 7928 action = LIST_FIRST(&priv->shared_actions); 7929 ret = mlx5_shared_action_destroy(dev, action, &error); 7930 } 7931 return ret; 7932 } 7933 7934 static void 7935 mlx5_flow_tunnel_free(struct rte_eth_dev *dev, 7936 struct mlx5_flow_tunnel *tunnel) 7937 { 7938 struct mlx5_priv *priv = dev->data->dev_private; 7939 7940 DRV_LOG(DEBUG, "port %u release pmd tunnel id=0x%x", 7941 dev->data->port_id, tunnel->tunnel_id); 7942 RTE_VERIFY(!__atomic_load_n(&tunnel->refctn, __ATOMIC_RELAXED)); 7943 LIST_REMOVE(tunnel, chain); 7944 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID], 7945 tunnel->tunnel_id); 7946 mlx5_hlist_destroy(tunnel->groups); 7947 mlx5_free(tunnel); 7948 } 7949 7950 static struct mlx5_flow_tunnel * 7951 mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id) 7952 { 7953 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); 7954 struct mlx5_flow_tunnel *tun; 7955 7956 LIST_FOREACH(tun, &thub->tunnels, chain) { 7957 if (tun->tunnel_id == id) 7958 break; 7959 } 7960 7961 return tun; 7962 } 7963 7964 static struct mlx5_flow_tunnel * 7965 mlx5_flow_tunnel_allocate(struct rte_eth_dev *dev, 7966 const struct rte_flow_tunnel *app_tunnel) 7967 { 7968 struct mlx5_priv *priv = dev->data->dev_private; 7969 struct mlx5_flow_tunnel *tunnel; 7970 uint32_t id; 7971 7972 mlx5_ipool_malloc(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], 7973 &id); 7974 if (id >= MLX5_MAX_TUNNELS) { 7975 mlx5_ipool_free(priv->sh->ipool 7976 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], id); 7977 DRV_LOG(ERR, "Tunnel ID %d exceed max limit.", id); 7978 return NULL; 7979 } else if (!id) { 7980 return NULL; 7981 } 7982 /** 7983 * mlx5 flow tunnel is an auxlilary data structure 7984 * It's not part of IO. No need to allocate it from 7985 * huge pages pools dedicated for IO 7986 */ 7987 tunnel = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*tunnel), 7988 0, SOCKET_ID_ANY); 7989 if (!tunnel) { 7990 mlx5_ipool_free(priv->sh->ipool 7991 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], id); 7992 return NULL; 7993 } 7994 tunnel->groups = mlx5_hlist_create("tunnel groups", 1024, 0, 0, 7995 mlx5_flow_tunnel_grp2tbl_create_cb, 7996 NULL, 7997 mlx5_flow_tunnel_grp2tbl_remove_cb); 7998 if (!tunnel->groups) { 7999 mlx5_ipool_free(priv->sh->ipool 8000 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], id); 8001 mlx5_free(tunnel); 8002 return NULL; 8003 } 8004 tunnel->groups->ctx = priv->sh; 8005 /* initiate new PMD tunnel */ 8006 memcpy(&tunnel->app_tunnel, app_tunnel, sizeof(*app_tunnel)); 8007 tunnel->tunnel_id = id; 8008 tunnel->action.type = (typeof(tunnel->action.type)) 8009 MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET; 8010 tunnel->action.conf = tunnel; 8011 tunnel->item.type = (typeof(tunnel->item.type)) 8012 MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL; 8013 tunnel->item.spec = tunnel; 8014 tunnel->item.last = NULL; 8015 tunnel->item.mask = NULL; 8016 8017 DRV_LOG(DEBUG, "port %u new pmd tunnel id=0x%x", 8018 dev->data->port_id, tunnel->tunnel_id); 8019 8020 return tunnel; 8021 } 8022 8023 static int 8024 mlx5_get_flow_tunnel(struct rte_eth_dev *dev, 8025 const struct rte_flow_tunnel *app_tunnel, 8026 struct mlx5_flow_tunnel **tunnel) 8027 { 8028 int ret; 8029 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); 8030 struct mlx5_flow_tunnel *tun; 8031 8032 LIST_FOREACH(tun, &thub->tunnels, chain) { 8033 if (!memcmp(app_tunnel, &tun->app_tunnel, 8034 sizeof(*app_tunnel))) { 8035 *tunnel = tun; 8036 ret = 0; 8037 break; 8038 } 8039 } 8040 if (!tun) { 8041 tun = mlx5_flow_tunnel_allocate(dev, app_tunnel); 8042 if (tun) { 8043 LIST_INSERT_HEAD(&thub->tunnels, tun, chain); 8044 *tunnel = tun; 8045 } else { 8046 ret = -ENOMEM; 8047 } 8048 } 8049 if (tun) 8050 __atomic_add_fetch(&tun->refctn, 1, __ATOMIC_RELAXED); 8051 8052 return ret; 8053 } 8054 8055 void mlx5_release_tunnel_hub(struct mlx5_dev_ctx_shared *sh, uint16_t port_id) 8056 { 8057 struct mlx5_flow_tunnel_hub *thub = sh->tunnel_hub; 8058 8059 if (!thub) 8060 return; 8061 if (!LIST_EMPTY(&thub->tunnels)) 8062 DRV_LOG(WARNING, "port %u tunnels present\n", port_id); 8063 mlx5_hlist_destroy(thub->groups); 8064 mlx5_free(thub); 8065 } 8066 8067 int mlx5_alloc_tunnel_hub(struct mlx5_dev_ctx_shared *sh) 8068 { 8069 int err; 8070 struct mlx5_flow_tunnel_hub *thub; 8071 8072 thub = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*thub), 8073 0, SOCKET_ID_ANY); 8074 if (!thub) 8075 return -ENOMEM; 8076 LIST_INIT(&thub->tunnels); 8077 thub->groups = mlx5_hlist_create("flow groups", MLX5_MAX_TABLES, 0, 8078 0, mlx5_flow_tunnel_grp2tbl_create_cb, 8079 NULL, 8080 mlx5_flow_tunnel_grp2tbl_remove_cb); 8081 if (!thub->groups) { 8082 err = -rte_errno; 8083 goto err; 8084 } 8085 thub->groups->ctx = sh; 8086 sh->tunnel_hub = thub; 8087 8088 return 0; 8089 8090 err: 8091 if (thub->groups) 8092 mlx5_hlist_destroy(thub->groups); 8093 if (thub) 8094 mlx5_free(thub); 8095 return err; 8096 } 8097 8098 #ifndef HAVE_MLX5DV_DR 8099 #define MLX5_DOMAIN_SYNC_FLOW ((1 << 0) | (1 << 1)) 8100 #else 8101 #define MLX5_DOMAIN_SYNC_FLOW \ 8102 (MLX5DV_DR_DOMAIN_SYNC_FLAGS_SW | MLX5DV_DR_DOMAIN_SYNC_FLAGS_HW) 8103 #endif 8104 8105 int rte_pmd_mlx5_sync_flow(uint16_t port_id, uint32_t domains) 8106 { 8107 struct rte_eth_dev *dev = &rte_eth_devices[port_id]; 8108 const struct mlx5_flow_driver_ops *fops; 8109 int ret; 8110 struct rte_flow_attr attr = { .transfer = 0 }; 8111 8112 fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr)); 8113 ret = fops->sync_domain(dev, domains, MLX5_DOMAIN_SYNC_FLOW); 8114 if (ret > 0) 8115 ret = -ret; 8116 return ret; 8117 } 8118