1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2014-2018 Broadcom 3 * All rights reserved. 4 */ 5 6 #include <sys/queue.h> 7 8 #include <rte_log.h> 9 #include <rte_malloc.h> 10 #include <rte_flow.h> 11 #include <rte_flow_driver.h> 12 #include <rte_tailq.h> 13 14 #include "bnxt.h" 15 #include "bnxt_filter.h" 16 #include "bnxt_hwrm.h" 17 #include "bnxt_ring.h" 18 #include "bnxt_rxq.h" 19 #include "bnxt_vnic.h" 20 #include "hsi_struct_def_dpdk.h" 21 22 static int 23 bnxt_flow_args_validate(const struct rte_flow_attr *attr, 24 const struct rte_flow_item pattern[], 25 const struct rte_flow_action actions[], 26 struct rte_flow_error *error) 27 { 28 if (!pattern) { 29 rte_flow_error_set(error, 30 EINVAL, 31 RTE_FLOW_ERROR_TYPE_ITEM_NUM, 32 NULL, 33 "NULL pattern."); 34 return -rte_errno; 35 } 36 37 if (!actions) { 38 rte_flow_error_set(error, 39 EINVAL, 40 RTE_FLOW_ERROR_TYPE_ACTION_NUM, 41 NULL, 42 "NULL action."); 43 return -rte_errno; 44 } 45 46 if (!attr) { 47 rte_flow_error_set(error, 48 EINVAL, 49 RTE_FLOW_ERROR_TYPE_ATTR, 50 NULL, 51 "NULL attribute."); 52 return -rte_errno; 53 } 54 55 return 0; 56 } 57 58 static const struct rte_flow_item * 59 bnxt_flow_non_void_item(const struct rte_flow_item *cur) 60 { 61 while (1) { 62 if (cur->type != RTE_FLOW_ITEM_TYPE_VOID) 63 return cur; 64 cur++; 65 } 66 } 67 68 static const struct rte_flow_action * 69 bnxt_flow_non_void_action(const struct rte_flow_action *cur) 70 { 71 while (1) { 72 if (cur->type != RTE_FLOW_ACTION_TYPE_VOID) 73 return cur; 74 cur++; 75 } 76 } 77 78 static int 79 bnxt_filter_type_check(const struct rte_flow_item pattern[], 80 struct rte_flow_error *error) 81 { 82 const struct rte_flow_item *item = 83 bnxt_flow_non_void_item(pattern); 84 int use_ntuple = 1; 85 bool has_vlan = 0; 86 87 while (item->type != RTE_FLOW_ITEM_TYPE_END) { 88 switch (item->type) { 89 case RTE_FLOW_ITEM_TYPE_ANY: 90 case RTE_FLOW_ITEM_TYPE_ETH: 91 use_ntuple = 0; 92 break; 93 case RTE_FLOW_ITEM_TYPE_VLAN: 94 use_ntuple = 0; 95 has_vlan = 1; 96 break; 97 case RTE_FLOW_ITEM_TYPE_IPV4: 98 case RTE_FLOW_ITEM_TYPE_IPV6: 99 case RTE_FLOW_ITEM_TYPE_TCP: 100 case RTE_FLOW_ITEM_TYPE_UDP: 101 /* FALLTHROUGH */ 102 /* need ntuple match, reset exact match */ 103 use_ntuple |= 1; 104 break; 105 default: 106 PMD_DRV_LOG(DEBUG, "Unknown Flow type\n"); 107 use_ntuple |= 0; 108 } 109 item++; 110 } 111 112 if (has_vlan && use_ntuple) { 113 PMD_DRV_LOG(ERR, 114 "VLAN flow cannot use NTUPLE filter\n"); 115 rte_flow_error_set(error, EINVAL, 116 RTE_FLOW_ERROR_TYPE_ITEM, 117 item, 118 "Cannot use VLAN with NTUPLE"); 119 return -rte_errno; 120 } 121 122 return use_ntuple; 123 } 124 125 static int 126 bnxt_validate_and_parse_flow_type(struct bnxt *bp, 127 const struct rte_flow_attr *attr, 128 const struct rte_flow_item pattern[], 129 struct rte_flow_error *error, 130 struct bnxt_filter_info *filter) 131 { 132 const struct rte_flow_item *item = bnxt_flow_non_void_item(pattern); 133 const struct rte_flow_item_vlan *vlan_spec, *vlan_mask; 134 const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask; 135 const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask; 136 const struct rte_flow_item_tcp *tcp_spec, *tcp_mask; 137 const struct rte_flow_item_udp *udp_spec, *udp_mask; 138 const struct rte_flow_item_eth *eth_spec, *eth_mask; 139 const struct rte_ether_addr *dst, *src; 140 const struct rte_flow_item_nvgre *nvgre_spec; 141 const struct rte_flow_item_nvgre *nvgre_mask; 142 const struct rte_flow_item_gre *gre_spec; 143 const struct rte_flow_item_gre *gre_mask; 144 const struct rte_flow_item_vxlan *vxlan_spec; 145 const struct rte_flow_item_vxlan *vxlan_mask; 146 uint8_t vni_mask[] = {0xFF, 0xFF, 0xFF}; 147 uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF}; 148 const struct rte_flow_item_vf *vf_spec; 149 uint32_t tenant_id_be = 0, valid_flags = 0; 150 bool vni_masked = 0; 151 bool tni_masked = 0; 152 uint32_t en_ethertype; 153 uint8_t inner = 0; 154 uint32_t vf = 0; 155 uint32_t en = 0; 156 int use_ntuple; 157 int dflt_vnic; 158 159 use_ntuple = bnxt_filter_type_check(pattern, error); 160 if (use_ntuple < 0) 161 return use_ntuple; 162 PMD_DRV_LOG(DEBUG, "Use NTUPLE %d\n", use_ntuple); 163 164 filter->filter_type = use_ntuple ? 165 HWRM_CFA_NTUPLE_FILTER : HWRM_CFA_L2_FILTER; 166 en_ethertype = use_ntuple ? 167 NTUPLE_FLTR_ALLOC_INPUT_EN_ETHERTYPE : 168 EM_FLOW_ALLOC_INPUT_EN_ETHERTYPE; 169 170 while (item->type != RTE_FLOW_ITEM_TYPE_END) { 171 if (item->last) { 172 /* last or range is NOT supported as match criteria */ 173 rte_flow_error_set(error, EINVAL, 174 RTE_FLOW_ERROR_TYPE_ITEM, 175 item, 176 "No support for range"); 177 return -rte_errno; 178 } 179 180 switch (item->type) { 181 case RTE_FLOW_ITEM_TYPE_ANY: 182 inner = 183 ((const struct rte_flow_item_any *)item->spec)->num > 3; 184 if (inner) 185 PMD_DRV_LOG(DEBUG, "Parse inner header\n"); 186 break; 187 case RTE_FLOW_ITEM_TYPE_ETH: 188 if (!item->spec || !item->mask) 189 break; 190 191 eth_spec = item->spec; 192 eth_mask = item->mask; 193 194 /* Source MAC address mask cannot be partially set. 195 * Should be All 0's or all 1's. 196 * Destination MAC address mask must not be partially 197 * set. Should be all 1's or all 0's. 198 */ 199 if ((!rte_is_zero_ether_addr(ð_mask->src) && 200 !rte_is_broadcast_ether_addr(ð_mask->src)) || 201 (!rte_is_zero_ether_addr(ð_mask->dst) && 202 !rte_is_broadcast_ether_addr(ð_mask->dst))) { 203 rte_flow_error_set(error, 204 EINVAL, 205 RTE_FLOW_ERROR_TYPE_ITEM, 206 item, 207 "MAC_addr mask not valid"); 208 return -rte_errno; 209 } 210 211 /* Mask is not allowed. Only exact matches are */ 212 if (eth_mask->type && 213 eth_mask->type != RTE_BE16(0xffff)) { 214 rte_flow_error_set(error, EINVAL, 215 RTE_FLOW_ERROR_TYPE_ITEM, 216 item, 217 "ethertype mask not valid"); 218 return -rte_errno; 219 } 220 221 if (rte_is_broadcast_ether_addr(ð_mask->dst)) { 222 dst = ð_spec->dst; 223 if (!rte_is_valid_assigned_ether_addr(dst)) { 224 rte_flow_error_set(error, 225 EINVAL, 226 RTE_FLOW_ERROR_TYPE_ITEM, 227 item, 228 "DMAC is invalid"); 229 PMD_DRV_LOG(ERR, 230 "DMAC is invalid!\n"); 231 return -rte_errno; 232 } 233 rte_memcpy(filter->dst_macaddr, 234 ð_spec->dst, RTE_ETHER_ADDR_LEN); 235 en |= use_ntuple ? 236 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_MACADDR : 237 EM_FLOW_ALLOC_INPUT_EN_DST_MACADDR; 238 valid_flags |= inner ? 239 BNXT_FLOW_L2_INNER_DST_VALID_FLAG : 240 BNXT_FLOW_L2_DST_VALID_FLAG; 241 filter->priority = attr->priority; 242 PMD_DRV_LOG(DEBUG, 243 "Creating a priority flow\n"); 244 } 245 if (rte_is_broadcast_ether_addr(ð_mask->src)) { 246 src = ð_spec->src; 247 if (!rte_is_valid_assigned_ether_addr(src)) { 248 rte_flow_error_set(error, 249 EINVAL, 250 RTE_FLOW_ERROR_TYPE_ITEM, 251 item, 252 "SMAC is invalid"); 253 PMD_DRV_LOG(ERR, 254 "SMAC is invalid!\n"); 255 return -rte_errno; 256 } 257 rte_memcpy(filter->src_macaddr, 258 ð_spec->src, RTE_ETHER_ADDR_LEN); 259 en |= use_ntuple ? 260 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR : 261 EM_FLOW_ALLOC_INPUT_EN_SRC_MACADDR; 262 valid_flags |= inner ? 263 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG : 264 BNXT_FLOW_L2_SRC_VALID_FLAG; 265 } /* 266 * else { 267 * PMD_DRV_LOG(ERR, "Handle this condition\n"); 268 * } 269 */ 270 if (eth_mask->type) { 271 filter->ethertype = 272 rte_be_to_cpu_16(eth_spec->type); 273 en |= en_ethertype; 274 } 275 if (inner) 276 valid_flags |= BNXT_FLOW_PARSE_INNER_FLAG; 277 278 break; 279 case RTE_FLOW_ITEM_TYPE_VLAN: 280 vlan_spec = item->spec; 281 vlan_mask = item->mask; 282 if (en & en_ethertype) { 283 rte_flow_error_set(error, EINVAL, 284 RTE_FLOW_ERROR_TYPE_ITEM, 285 item, 286 "VLAN TPID matching is not" 287 " supported"); 288 return -rte_errno; 289 } 290 if (vlan_mask->tci && 291 vlan_mask->tci == RTE_BE16(0x0fff)) { 292 /* Only the VLAN ID can be matched. */ 293 filter->l2_ovlan = 294 rte_be_to_cpu_16(vlan_spec->tci & 295 RTE_BE16(0x0fff)); 296 en |= EM_FLOW_ALLOC_INPUT_EN_OVLAN_VID; 297 } else { 298 rte_flow_error_set(error, 299 EINVAL, 300 RTE_FLOW_ERROR_TYPE_ITEM, 301 item, 302 "VLAN mask is invalid"); 303 return -rte_errno; 304 } 305 if (vlan_mask->inner_type && 306 vlan_mask->inner_type != RTE_BE16(0xffff)) { 307 rte_flow_error_set(error, EINVAL, 308 RTE_FLOW_ERROR_TYPE_ITEM, 309 item, 310 "inner ethertype mask not" 311 " valid"); 312 return -rte_errno; 313 } 314 if (vlan_mask->inner_type) { 315 filter->ethertype = 316 rte_be_to_cpu_16(vlan_spec->inner_type); 317 en |= en_ethertype; 318 } 319 320 break; 321 case RTE_FLOW_ITEM_TYPE_IPV4: 322 /* If mask is not involved, we could use EM filters. */ 323 ipv4_spec = item->spec; 324 ipv4_mask = item->mask; 325 326 if (!item->spec || !item->mask) 327 break; 328 329 /* Only IP DST and SRC fields are maskable. */ 330 if (ipv4_mask->hdr.version_ihl || 331 ipv4_mask->hdr.type_of_service || 332 ipv4_mask->hdr.total_length || 333 ipv4_mask->hdr.packet_id || 334 ipv4_mask->hdr.fragment_offset || 335 ipv4_mask->hdr.time_to_live || 336 ipv4_mask->hdr.next_proto_id || 337 ipv4_mask->hdr.hdr_checksum) { 338 rte_flow_error_set(error, 339 EINVAL, 340 RTE_FLOW_ERROR_TYPE_ITEM, 341 item, 342 "Invalid IPv4 mask."); 343 return -rte_errno; 344 } 345 346 filter->dst_ipaddr[0] = ipv4_spec->hdr.dst_addr; 347 filter->src_ipaddr[0] = ipv4_spec->hdr.src_addr; 348 349 if (use_ntuple) 350 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR | 351 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR; 352 else 353 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR | 354 EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR; 355 356 if (ipv4_mask->hdr.src_addr) { 357 filter->src_ipaddr_mask[0] = 358 ipv4_mask->hdr.src_addr; 359 en |= !use_ntuple ? 0 : 360 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK; 361 } 362 363 if (ipv4_mask->hdr.dst_addr) { 364 filter->dst_ipaddr_mask[0] = 365 ipv4_mask->hdr.dst_addr; 366 en |= !use_ntuple ? 0 : 367 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK; 368 } 369 370 filter->ip_addr_type = use_ntuple ? 371 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_IP_ADDR_TYPE_IPV4 : 372 HWRM_CFA_EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV4; 373 374 if (ipv4_spec->hdr.next_proto_id) { 375 filter->ip_protocol = 376 ipv4_spec->hdr.next_proto_id; 377 if (use_ntuple) 378 en |= NTUPLE_FLTR_ALLOC_IN_EN_IP_PROTO; 379 else 380 en |= EM_FLOW_ALLOC_INPUT_EN_IP_PROTO; 381 } 382 break; 383 case RTE_FLOW_ITEM_TYPE_IPV6: 384 ipv6_spec = item->spec; 385 ipv6_mask = item->mask; 386 387 if (!item->spec || !item->mask) 388 break; 389 390 /* Only IP DST and SRC fields are maskable. */ 391 if (ipv6_mask->hdr.vtc_flow || 392 ipv6_mask->hdr.payload_len || 393 ipv6_mask->hdr.proto || 394 ipv6_mask->hdr.hop_limits) { 395 rte_flow_error_set(error, 396 EINVAL, 397 RTE_FLOW_ERROR_TYPE_ITEM, 398 item, 399 "Invalid IPv6 mask."); 400 return -rte_errno; 401 } 402 403 if (use_ntuple) 404 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR | 405 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR; 406 else 407 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR | 408 EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR; 409 410 rte_memcpy(filter->src_ipaddr, 411 ipv6_spec->hdr.src_addr, 16); 412 rte_memcpy(filter->dst_ipaddr, 413 ipv6_spec->hdr.dst_addr, 16); 414 415 if (!bnxt_check_zero_bytes(ipv6_mask->hdr.src_addr, 416 16)) { 417 rte_memcpy(filter->src_ipaddr_mask, 418 ipv6_mask->hdr.src_addr, 16); 419 en |= !use_ntuple ? 0 : 420 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK; 421 } 422 423 if (!bnxt_check_zero_bytes(ipv6_mask->hdr.dst_addr, 424 16)) { 425 rte_memcpy(filter->dst_ipaddr_mask, 426 ipv6_mask->hdr.dst_addr, 16); 427 en |= !use_ntuple ? 0 : 428 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK; 429 } 430 431 filter->ip_addr_type = use_ntuple ? 432 NTUPLE_FLTR_ALLOC_INPUT_IP_ADDR_TYPE_IPV6 : 433 EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV6; 434 break; 435 case RTE_FLOW_ITEM_TYPE_TCP: 436 tcp_spec = item->spec; 437 tcp_mask = item->mask; 438 439 if (!item->spec || !item->mask) 440 break; 441 442 /* Check TCP mask. Only DST & SRC ports are maskable */ 443 if (tcp_mask->hdr.sent_seq || 444 tcp_mask->hdr.recv_ack || 445 tcp_mask->hdr.data_off || 446 tcp_mask->hdr.tcp_flags || 447 tcp_mask->hdr.rx_win || 448 tcp_mask->hdr.cksum || 449 tcp_mask->hdr.tcp_urp) { 450 rte_flow_error_set(error, 451 EINVAL, 452 RTE_FLOW_ERROR_TYPE_ITEM, 453 item, 454 "Invalid TCP mask"); 455 return -rte_errno; 456 } 457 458 filter->src_port = tcp_spec->hdr.src_port; 459 filter->dst_port = tcp_spec->hdr.dst_port; 460 461 if (use_ntuple) 462 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT | 463 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT; 464 else 465 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT | 466 EM_FLOW_ALLOC_INPUT_EN_DST_PORT; 467 468 if (tcp_mask->hdr.dst_port) { 469 filter->dst_port_mask = tcp_mask->hdr.dst_port; 470 en |= !use_ntuple ? 0 : 471 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK; 472 } 473 474 if (tcp_mask->hdr.src_port) { 475 filter->src_port_mask = tcp_mask->hdr.src_port; 476 en |= !use_ntuple ? 0 : 477 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK; 478 } 479 break; 480 case RTE_FLOW_ITEM_TYPE_UDP: 481 udp_spec = item->spec; 482 udp_mask = item->mask; 483 484 if (!item->spec || !item->mask) 485 break; 486 487 if (udp_mask->hdr.dgram_len || 488 udp_mask->hdr.dgram_cksum) { 489 rte_flow_error_set(error, 490 EINVAL, 491 RTE_FLOW_ERROR_TYPE_ITEM, 492 item, 493 "Invalid UDP mask"); 494 return -rte_errno; 495 } 496 497 filter->src_port = udp_spec->hdr.src_port; 498 filter->dst_port = udp_spec->hdr.dst_port; 499 500 if (use_ntuple) 501 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT | 502 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT; 503 else 504 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT | 505 EM_FLOW_ALLOC_INPUT_EN_DST_PORT; 506 507 if (udp_mask->hdr.dst_port) { 508 filter->dst_port_mask = udp_mask->hdr.dst_port; 509 en |= !use_ntuple ? 0 : 510 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK; 511 } 512 513 if (udp_mask->hdr.src_port) { 514 filter->src_port_mask = udp_mask->hdr.src_port; 515 en |= !use_ntuple ? 0 : 516 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK; 517 } 518 break; 519 case RTE_FLOW_ITEM_TYPE_VXLAN: 520 vxlan_spec = item->spec; 521 vxlan_mask = item->mask; 522 /* Check if VXLAN item is used to describe protocol. 523 * If yes, both spec and mask should be NULL. 524 * If no, both spec and mask shouldn't be NULL. 525 */ 526 if ((!vxlan_spec && vxlan_mask) || 527 (vxlan_spec && !vxlan_mask)) { 528 rte_flow_error_set(error, 529 EINVAL, 530 RTE_FLOW_ERROR_TYPE_ITEM, 531 item, 532 "Invalid VXLAN item"); 533 return -rte_errno; 534 } 535 536 if (!vxlan_spec && !vxlan_mask) { 537 filter->tunnel_type = 538 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN; 539 break; 540 } 541 542 if (vxlan_spec->rsvd1 || vxlan_spec->rsvd0[0] || 543 vxlan_spec->rsvd0[1] || vxlan_spec->rsvd0[2] || 544 vxlan_spec->flags != 0x8) { 545 rte_flow_error_set(error, 546 EINVAL, 547 RTE_FLOW_ERROR_TYPE_ITEM, 548 item, 549 "Invalid VXLAN item"); 550 return -rte_errno; 551 } 552 553 /* Check if VNI is masked. */ 554 if (vxlan_spec && vxlan_mask) { 555 vni_masked = 556 !!memcmp(vxlan_mask->vni, vni_mask, 557 RTE_DIM(vni_mask)); 558 if (vni_masked) { 559 rte_flow_error_set 560 (error, 561 EINVAL, 562 RTE_FLOW_ERROR_TYPE_ITEM, 563 item, 564 "Invalid VNI mask"); 565 return -rte_errno; 566 } 567 568 rte_memcpy(((uint8_t *)&tenant_id_be + 1), 569 vxlan_spec->vni, 3); 570 filter->vni = 571 rte_be_to_cpu_32(tenant_id_be); 572 filter->tunnel_type = 573 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN; 574 } 575 break; 576 case RTE_FLOW_ITEM_TYPE_NVGRE: 577 nvgre_spec = item->spec; 578 nvgre_mask = item->mask; 579 /* Check if NVGRE item is used to describe protocol. 580 * If yes, both spec and mask should be NULL. 581 * If no, both spec and mask shouldn't be NULL. 582 */ 583 if ((!nvgre_spec && nvgre_mask) || 584 (nvgre_spec && !nvgre_mask)) { 585 rte_flow_error_set(error, 586 EINVAL, 587 RTE_FLOW_ERROR_TYPE_ITEM, 588 item, 589 "Invalid NVGRE item"); 590 return -rte_errno; 591 } 592 593 if (!nvgre_spec && !nvgre_mask) { 594 filter->tunnel_type = 595 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE; 596 break; 597 } 598 599 if (nvgre_spec->c_k_s_rsvd0_ver != 0x2000 || 600 nvgre_spec->protocol != 0x6558) { 601 rte_flow_error_set(error, 602 EINVAL, 603 RTE_FLOW_ERROR_TYPE_ITEM, 604 item, 605 "Invalid NVGRE item"); 606 return -rte_errno; 607 } 608 609 if (nvgre_spec && nvgre_mask) { 610 tni_masked = 611 !!memcmp(nvgre_mask->tni, tni_mask, 612 RTE_DIM(tni_mask)); 613 if (tni_masked) { 614 rte_flow_error_set 615 (error, 616 EINVAL, 617 RTE_FLOW_ERROR_TYPE_ITEM, 618 item, 619 "Invalid TNI mask"); 620 return -rte_errno; 621 } 622 rte_memcpy(((uint8_t *)&tenant_id_be + 1), 623 nvgre_spec->tni, 3); 624 filter->vni = 625 rte_be_to_cpu_32(tenant_id_be); 626 filter->tunnel_type = 627 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE; 628 } 629 break; 630 631 case RTE_FLOW_ITEM_TYPE_GRE: 632 gre_spec = (const struct rte_flow_item_gre *)item->spec; 633 gre_mask = (const struct rte_flow_item_gre *)item->mask; 634 635 /* 636 *Check if GRE item is used to describe protocol. 637 * If yes, both spec and mask should be NULL. 638 * If no, both spec and mask shouldn't be NULL. 639 */ 640 if (!!gre_spec ^ !!gre_mask) { 641 rte_flow_error_set(error, EINVAL, 642 RTE_FLOW_ERROR_TYPE_ITEM, 643 item, 644 "Invalid GRE item"); 645 return -rte_errno; 646 } 647 648 if (!gre_spec && !gre_mask) { 649 filter->tunnel_type = 650 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE; 651 break; 652 } 653 break; 654 655 case RTE_FLOW_ITEM_TYPE_VF: 656 vf_spec = item->spec; 657 vf = vf_spec->id; 658 if (!BNXT_PF(bp)) { 659 rte_flow_error_set(error, 660 EINVAL, 661 RTE_FLOW_ERROR_TYPE_ITEM, 662 item, 663 "Configuring on a VF!"); 664 return -rte_errno; 665 } 666 667 if (vf >= bp->pdev->max_vfs) { 668 rte_flow_error_set(error, 669 EINVAL, 670 RTE_FLOW_ERROR_TYPE_ITEM, 671 item, 672 "Incorrect VF id!"); 673 return -rte_errno; 674 } 675 676 if (!attr->transfer) { 677 rte_flow_error_set(error, 678 ENOTSUP, 679 RTE_FLOW_ERROR_TYPE_ITEM, 680 item, 681 "Matching VF traffic without" 682 " affecting it (transfer attribute)" 683 " is unsupported"); 684 return -rte_errno; 685 } 686 687 filter->mirror_vnic_id = 688 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf); 689 if (dflt_vnic < 0) { 690 /* This simply indicates there's no driver 691 * loaded. This is not an error. 692 */ 693 rte_flow_error_set 694 (error, 695 EINVAL, 696 RTE_FLOW_ERROR_TYPE_ITEM, 697 item, 698 "Unable to get default VNIC for VF"); 699 return -rte_errno; 700 } 701 702 filter->mirror_vnic_id = dflt_vnic; 703 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID; 704 break; 705 default: 706 break; 707 } 708 item++; 709 } 710 filter->enables = en; 711 filter->valid_flags = valid_flags; 712 713 return 0; 714 } 715 716 /* Parse attributes */ 717 static int 718 bnxt_flow_parse_attr(const struct rte_flow_attr *attr, 719 struct rte_flow_error *error) 720 { 721 /* Must be input direction */ 722 if (!attr->ingress) { 723 rte_flow_error_set(error, 724 EINVAL, 725 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, 726 attr, 727 "Only support ingress."); 728 return -rte_errno; 729 } 730 731 /* Not supported */ 732 if (attr->egress) { 733 rte_flow_error_set(error, 734 EINVAL, 735 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, 736 attr, 737 "No support for egress."); 738 return -rte_errno; 739 } 740 741 return 0; 742 } 743 744 static struct bnxt_filter_info * 745 bnxt_find_matching_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf) 746 { 747 struct bnxt_filter_info *mf, *f0; 748 struct bnxt_vnic_info *vnic0; 749 int i; 750 751 vnic0 = BNXT_GET_DEFAULT_VNIC(bp); 752 f0 = STAILQ_FIRST(&vnic0->filter); 753 754 /* This flow has same DST MAC as the port/l2 filter. */ 755 if (memcmp(f0->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN) == 0) 756 return f0; 757 758 for (i = bp->max_vnics - 1; i >= 0; i--) { 759 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 760 761 if (vnic->fw_vnic_id == INVALID_VNIC_ID) 762 continue; 763 764 STAILQ_FOREACH(mf, &vnic->filter, next) { 765 766 if (mf->matching_l2_fltr_ptr) 767 continue; 768 769 if (mf->ethertype == nf->ethertype && 770 mf->l2_ovlan == nf->l2_ovlan && 771 mf->l2_ovlan_mask == nf->l2_ovlan_mask && 772 mf->l2_ivlan == nf->l2_ivlan && 773 mf->l2_ivlan_mask == nf->l2_ivlan_mask && 774 !memcmp(mf->src_macaddr, nf->src_macaddr, 775 RTE_ETHER_ADDR_LEN) && 776 !memcmp(mf->dst_macaddr, nf->dst_macaddr, 777 RTE_ETHER_ADDR_LEN)) 778 return mf; 779 } 780 } 781 return NULL; 782 } 783 784 static struct bnxt_filter_info * 785 bnxt_create_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf, 786 struct bnxt_vnic_info *vnic) 787 { 788 struct bnxt_filter_info *filter1; 789 int rc; 790 791 /* Alloc new L2 filter. 792 * This flow needs MAC filter which does not match any existing 793 * L2 filters. 794 */ 795 filter1 = bnxt_get_unused_filter(bp); 796 if (filter1 == NULL) 797 return NULL; 798 799 memcpy(filter1, nf, sizeof(*filter1)); 800 801 filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_XDP_DISABLE; 802 filter1->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX; 803 if (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG || 804 nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG) { 805 filter1->flags |= 806 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST; 807 PMD_DRV_LOG(DEBUG, "Create Outer filter\n"); 808 } 809 810 if (nf->filter_type == HWRM_CFA_L2_FILTER && 811 (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG || 812 nf->valid_flags & BNXT_FLOW_L2_INNER_SRC_VALID_FLAG)) { 813 PMD_DRV_LOG(DEBUG, "Create L2 filter for SRC MAC\n"); 814 filter1->flags |= 815 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_SOURCE_VALID; 816 memcpy(filter1->l2_addr, nf->src_macaddr, RTE_ETHER_ADDR_LEN); 817 } else { 818 PMD_DRV_LOG(DEBUG, "Create L2 filter for DST MAC\n"); 819 memcpy(filter1->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN); 820 } 821 822 if (nf->priority && 823 (nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG || 824 nf->valid_flags & BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) { 825 /* Tell the FW where to place the filter in the table. */ 826 if (nf->priority > 65535) { 827 filter1->pri_hint = 828 HWRM_CFA_L2_FILTER_ALLOC_INPUT_PRI_HINT_BELOW_FILTER; 829 /* This will place the filter in TCAM */ 830 filter1->l2_filter_id_hint = (uint64_t)-1; 831 } 832 } 833 834 if (nf->valid_flags & (BNXT_FLOW_L2_DST_VALID_FLAG | 835 BNXT_FLOW_L2_SRC_VALID_FLAG | 836 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG | 837 BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) { 838 filter1->enables = 839 HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR | 840 L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK; 841 memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN); 842 } 843 844 if (nf->valid_flags & BNXT_FLOW_L2_DROP_FLAG) { 845 filter1->flags |= 846 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_DROP; 847 if (nf->ethertype == RTE_ETHER_TYPE_IPV4) { 848 /* Num VLANs for drop filter will/should be 0. 849 * If the req is memset to 0, then the count will 850 * be automatically set to 0. 851 */ 852 if (nf->valid_flags & BNXT_FLOW_PARSE_INNER_FLAG) { 853 filter1->enables |= 854 L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS; 855 } else { 856 filter1->enables |= 857 L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS; 858 filter1->flags |= 859 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST; 860 } 861 } 862 } 863 864 rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id, 865 filter1); 866 if (rc) { 867 bnxt_free_filter(bp, filter1); 868 return NULL; 869 } 870 filter1->l2_ref_cnt++; 871 return filter1; 872 } 873 874 struct bnxt_filter_info * 875 bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf, 876 struct bnxt_vnic_info *vnic) 877 { 878 struct bnxt_filter_info *l2_filter = NULL; 879 880 l2_filter = bnxt_find_matching_l2_filter(bp, nf); 881 if (l2_filter) { 882 l2_filter->l2_ref_cnt++; 883 } else { 884 l2_filter = bnxt_create_l2_filter(bp, nf, vnic); 885 if (l2_filter) { 886 STAILQ_INSERT_TAIL(&vnic->filter, l2_filter, next); 887 l2_filter->vnic = vnic; 888 } 889 } 890 nf->matching_l2_fltr_ptr = l2_filter; 891 892 return l2_filter; 893 } 894 895 static int bnxt_vnic_prep(struct bnxt *bp, struct bnxt_vnic_info *vnic) 896 { 897 struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf; 898 uint64_t rx_offloads = dev_conf->rxmode.offloads; 899 int rc; 900 901 rc = bnxt_vnic_grp_alloc(bp, vnic); 902 if (rc) 903 goto ret; 904 905 rc = bnxt_hwrm_vnic_alloc(bp, vnic); 906 if (rc) { 907 PMD_DRV_LOG(ERR, "HWRM vnic alloc failure rc: %x\n", rc); 908 goto ret; 909 } 910 bp->nr_vnics++; 911 912 /* RSS context is required only when there is more than one RSS ring */ 913 if (vnic->rx_queue_cnt > 1) { 914 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0 /* ctx_idx 0 */); 915 if (rc) { 916 PMD_DRV_LOG(ERR, 917 "HWRM vnic ctx alloc failure: %x\n", rc); 918 goto ret; 919 } 920 } else { 921 PMD_DRV_LOG(DEBUG, "No RSS context required\n"); 922 } 923 924 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP) 925 vnic->vlan_strip = true; 926 else 927 vnic->vlan_strip = false; 928 929 rc = bnxt_hwrm_vnic_cfg(bp, vnic); 930 if (rc) 931 goto ret; 932 933 bnxt_hwrm_vnic_plcmode_cfg(bp, vnic); 934 935 ret: 936 return rc; 937 } 938 939 static int match_vnic_rss_cfg(struct bnxt *bp, 940 struct bnxt_vnic_info *vnic, 941 const struct rte_flow_action_rss *rss) 942 { 943 unsigned int match = 0, i; 944 945 if (vnic->rx_queue_cnt != rss->queue_num) 946 return -EINVAL; 947 948 for (i = 0; i < rss->queue_num; i++) { 949 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt && 950 !bp->rx_queues[rss->queue[i]]->rx_started) 951 return -EINVAL; 952 } 953 954 for (i = 0; i < vnic->rx_queue_cnt; i++) { 955 int j; 956 957 for (j = 0; j < vnic->rx_queue_cnt; j++) { 958 if (bp->grp_info[rss->queue[i]].fw_grp_id == 959 vnic->fw_grp_ids[j]) 960 match++; 961 } 962 } 963 964 if (match != vnic->rx_queue_cnt) { 965 PMD_DRV_LOG(ERR, 966 "VNIC queue count %d vs queues matched %d\n", 967 match, vnic->rx_queue_cnt); 968 return -EINVAL; 969 } 970 971 return 0; 972 } 973 974 static void 975 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter, 976 struct bnxt_filter_info *filter1, 977 int use_ntuple) 978 { 979 if (!use_ntuple && 980 !(filter->valid_flags & 981 ~(BNXT_FLOW_L2_DST_VALID_FLAG | 982 BNXT_FLOW_L2_SRC_VALID_FLAG | 983 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG | 984 BNXT_FLOW_L2_INNER_DST_VALID_FLAG | 985 BNXT_FLOW_L2_DROP_FLAG | 986 BNXT_FLOW_PARSE_INNER_FLAG))) { 987 filter->flags = filter1->flags; 988 filter->enables = filter1->enables; 989 filter->filter_type = HWRM_CFA_L2_FILTER; 990 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN); 991 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN); 992 filter->pri_hint = filter1->pri_hint; 993 filter->l2_filter_id_hint = filter1->l2_filter_id_hint; 994 } 995 filter->fw_l2_filter_id = filter1->fw_l2_filter_id; 996 filter->l2_ref_cnt = filter1->l2_ref_cnt; 997 filter->flow_id = filter1->flow_id; 998 PMD_DRV_LOG(DEBUG, 999 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n", 1000 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt); 1001 } 1002 1003 static int 1004 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev, 1005 const struct rte_flow_item pattern[], 1006 const struct rte_flow_action actions[], 1007 const struct rte_flow_attr *attr, 1008 struct rte_flow_error *error, 1009 struct bnxt_filter_info *filter) 1010 { 1011 const struct rte_flow_action *act = 1012 bnxt_flow_non_void_action(actions); 1013 struct bnxt *bp = dev->data->dev_private; 1014 struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf; 1015 struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL; 1016 const struct rte_flow_action_queue *act_q; 1017 const struct rte_flow_action_vf *act_vf; 1018 struct bnxt_filter_info *filter1 = NULL; 1019 const struct rte_flow_action_rss *rss; 1020 struct bnxt_rx_queue *rxq = NULL; 1021 int dflt_vnic, vnic_id; 1022 unsigned int rss_idx; 1023 uint32_t vf = 0, i; 1024 int rc, use_ntuple; 1025 1026 rc = 1027 bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter); 1028 if (rc != 0) 1029 goto ret; 1030 1031 rc = bnxt_flow_parse_attr(attr, error); 1032 if (rc != 0) 1033 goto ret; 1034 1035 /* Since we support ingress attribute only - right now. */ 1036 if (filter->filter_type == HWRM_CFA_EM_FILTER) 1037 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX; 1038 1039 use_ntuple = bnxt_filter_type_check(pattern, error); 1040 1041 start: 1042 switch (act->type) { 1043 case RTE_FLOW_ACTION_TYPE_QUEUE: 1044 /* Allow this flow. Redirect to a VNIC. */ 1045 act_q = (const struct rte_flow_action_queue *)act->conf; 1046 if (!act_q->index || act_q->index >= bp->rx_nr_rings) { 1047 rte_flow_error_set(error, 1048 EINVAL, 1049 RTE_FLOW_ERROR_TYPE_ACTION, 1050 act, 1051 "Invalid queue ID."); 1052 rc = -rte_errno; 1053 goto ret; 1054 } 1055 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index); 1056 1057 vnic_id = attr->group; 1058 if (!vnic_id) { 1059 PMD_DRV_LOG(DEBUG, "Group id is 0\n"); 1060 vnic_id = act_q->index; 1061 } 1062 1063 vnic = &bp->vnic_info[vnic_id]; 1064 if (vnic == NULL) { 1065 rte_flow_error_set(error, 1066 EINVAL, 1067 RTE_FLOW_ERROR_TYPE_ACTION, 1068 act, 1069 "No matching VNIC found."); 1070 rc = -rte_errno; 1071 goto ret; 1072 } 1073 if (vnic->rx_queue_cnt) { 1074 if (vnic->start_grp_id != act_q->index) { 1075 PMD_DRV_LOG(ERR, 1076 "VNIC already in use\n"); 1077 rte_flow_error_set(error, 1078 EINVAL, 1079 RTE_FLOW_ERROR_TYPE_ACTION, 1080 act, 1081 "VNIC already in use"); 1082 rc = -rte_errno; 1083 goto ret; 1084 } 1085 goto use_vnic; 1086 } 1087 1088 rxq = bp->rx_queues[act_q->index]; 1089 1090 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq && 1091 vnic->fw_vnic_id != INVALID_HW_RING_ID) 1092 goto use_vnic; 1093 1094 if (!rxq) { 1095 PMD_DRV_LOG(ERR, 1096 "Queue invalid or used with other VNIC\n"); 1097 rte_flow_error_set(error, 1098 EINVAL, 1099 RTE_FLOW_ERROR_TYPE_ACTION, 1100 act, 1101 "Queue invalid queue or in use"); 1102 rc = -rte_errno; 1103 goto ret; 1104 } 1105 1106 rxq->vnic = vnic; 1107 rxq->rx_started = 1; 1108 vnic->rx_queue_cnt++; 1109 vnic->start_grp_id = act_q->index; 1110 vnic->end_grp_id = act_q->index; 1111 vnic->func_default = 0; //This is not a default VNIC. 1112 1113 PMD_DRV_LOG(DEBUG, "VNIC found\n"); 1114 1115 rc = bnxt_vnic_prep(bp, vnic); 1116 if (rc) { 1117 rte_flow_error_set(error, 1118 EINVAL, 1119 RTE_FLOW_ERROR_TYPE_ACTION, 1120 act, 1121 "VNIC prep fail"); 1122 rc = -rte_errno; 1123 goto ret; 1124 } 1125 1126 PMD_DRV_LOG(DEBUG, 1127 "vnic[%d] = %p vnic->fw_grp_ids = %p\n", 1128 act_q->index, vnic, vnic->fw_grp_ids); 1129 1130 use_vnic: 1131 vnic->ff_pool_idx = vnic_id; 1132 PMD_DRV_LOG(DEBUG, 1133 "Setting vnic ff_idx %d\n", vnic->ff_pool_idx); 1134 filter->dst_id = vnic->fw_vnic_id; 1135 1136 /* For ntuple filter, create the L2 filter with default VNIC. 1137 * The user specified redirect queue will be set while creating 1138 * the ntuple filter in hardware. 1139 */ 1140 vnic0 = BNXT_GET_DEFAULT_VNIC(bp); 1141 if (use_ntuple) 1142 filter1 = bnxt_get_l2_filter(bp, filter, vnic0); 1143 else 1144 filter1 = bnxt_get_l2_filter(bp, filter, vnic); 1145 if (filter1 == NULL) { 1146 rte_flow_error_set(error, 1147 ENOSPC, 1148 RTE_FLOW_ERROR_TYPE_ACTION, 1149 act, 1150 "Filter not available"); 1151 rc = -rte_errno; 1152 goto ret; 1153 } 1154 1155 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n", 1156 filter, filter1, filter1->l2_ref_cnt); 1157 bnxt_update_filter_flags_en(filter, filter1, use_ntuple); 1158 break; 1159 case RTE_FLOW_ACTION_TYPE_DROP: 1160 vnic0 = &bp->vnic_info[0]; 1161 filter->dst_id = vnic0->fw_vnic_id; 1162 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG; 1163 filter1 = bnxt_get_l2_filter(bp, filter, vnic0); 1164 if (filter1 == NULL) { 1165 rte_flow_error_set(error, 1166 ENOSPC, 1167 RTE_FLOW_ERROR_TYPE_ACTION, 1168 act, 1169 "Filter not available"); 1170 rc = -rte_errno; 1171 goto ret; 1172 } 1173 1174 if (filter->filter_type == HWRM_CFA_EM_FILTER) 1175 filter->flags = 1176 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP; 1177 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) 1178 filter->flags = 1179 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP; 1180 1181 bnxt_update_filter_flags_en(filter, filter1, use_ntuple); 1182 break; 1183 case RTE_FLOW_ACTION_TYPE_COUNT: 1184 vnic0 = &bp->vnic_info[0]; 1185 filter1 = bnxt_get_l2_filter(bp, filter, vnic0); 1186 if (filter1 == NULL) { 1187 rte_flow_error_set(error, 1188 ENOSPC, 1189 RTE_FLOW_ERROR_TYPE_ACTION, 1190 act, 1191 "New filter not available"); 1192 rc = -rte_errno; 1193 goto ret; 1194 } 1195 1196 filter->fw_l2_filter_id = filter1->fw_l2_filter_id; 1197 filter->flow_id = filter1->flow_id; 1198 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER; 1199 break; 1200 case RTE_FLOW_ACTION_TYPE_VF: 1201 act_vf = (const struct rte_flow_action_vf *)act->conf; 1202 vf = act_vf->id; 1203 1204 if (filter->tunnel_type == 1205 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN || 1206 filter->tunnel_type == 1207 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) { 1208 /* If issued on a VF, ensure id is 0 and is trusted */ 1209 if (BNXT_VF(bp)) { 1210 if (!BNXT_VF_IS_TRUSTED(bp) || vf) { 1211 rte_flow_error_set(error, EINVAL, 1212 RTE_FLOW_ERROR_TYPE_ACTION, 1213 act, 1214 "Incorrect VF"); 1215 rc = -rte_errno; 1216 goto ret; 1217 } 1218 } 1219 1220 filter->enables |= filter->tunnel_type; 1221 filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER; 1222 goto done; 1223 } 1224 1225 if (vf >= bp->pdev->max_vfs) { 1226 rte_flow_error_set(error, 1227 EINVAL, 1228 RTE_FLOW_ERROR_TYPE_ACTION, 1229 act, 1230 "Incorrect VF id!"); 1231 rc = -rte_errno; 1232 goto ret; 1233 } 1234 1235 filter->mirror_vnic_id = 1236 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf); 1237 if (dflt_vnic < 0) { 1238 /* This simply indicates there's no driver loaded. 1239 * This is not an error. 1240 */ 1241 rte_flow_error_set(error, 1242 EINVAL, 1243 RTE_FLOW_ERROR_TYPE_ACTION, 1244 act, 1245 "Unable to get default VNIC for VF"); 1246 rc = -rte_errno; 1247 goto ret; 1248 } 1249 1250 filter->mirror_vnic_id = dflt_vnic; 1251 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID; 1252 1253 vnic0 = &bp->vnic_info[0]; 1254 filter1 = bnxt_get_l2_filter(bp, filter, vnic0); 1255 if (filter1 == NULL) { 1256 rte_flow_error_set(error, 1257 ENOSPC, 1258 RTE_FLOW_ERROR_TYPE_ACTION, 1259 act, 1260 "New filter not available"); 1261 rc = -rte_errno; 1262 goto ret; 1263 } 1264 1265 filter->fw_l2_filter_id = filter1->fw_l2_filter_id; 1266 filter->flow_id = filter1->flow_id; 1267 break; 1268 case RTE_FLOW_ACTION_TYPE_RSS: 1269 rss = (const struct rte_flow_action_rss *)act->conf; 1270 1271 vnic_id = attr->group; 1272 if (!vnic_id) { 1273 PMD_DRV_LOG(ERR, "Group id cannot be 0\n"); 1274 rte_flow_error_set(error, 1275 EINVAL, 1276 RTE_FLOW_ERROR_TYPE_ATTR, 1277 NULL, 1278 "Group id cannot be 0"); 1279 rc = -rte_errno; 1280 goto ret; 1281 } 1282 1283 vnic = &bp->vnic_info[vnic_id]; 1284 if (vnic == NULL) { 1285 rte_flow_error_set(error, 1286 EINVAL, 1287 RTE_FLOW_ERROR_TYPE_ACTION, 1288 act, 1289 "No matching VNIC for RSS group."); 1290 rc = -rte_errno; 1291 goto ret; 1292 } 1293 PMD_DRV_LOG(DEBUG, "VNIC found\n"); 1294 1295 /* Check if requested RSS config matches RSS config of VNIC 1296 * only if it is not a fresh VNIC configuration. 1297 * Otherwise the existing VNIC configuration can be used. 1298 */ 1299 if (vnic->rx_queue_cnt) { 1300 rc = match_vnic_rss_cfg(bp, vnic, rss); 1301 if (rc) { 1302 PMD_DRV_LOG(ERR, 1303 "VNIC and RSS config mismatch\n"); 1304 rte_flow_error_set(error, 1305 EINVAL, 1306 RTE_FLOW_ERROR_TYPE_ACTION, 1307 act, 1308 "VNIC and RSS cfg mismatch"); 1309 rc = -rte_errno; 1310 goto ret; 1311 } 1312 goto vnic_found; 1313 } 1314 1315 for (i = 0; i < rss->queue_num; i++) { 1316 PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n", 1317 rss->queue[i]); 1318 1319 if (!rss->queue[i] || 1320 rss->queue[i] >= bp->rx_nr_rings || 1321 !bp->rx_queues[rss->queue[i]]) { 1322 rte_flow_error_set(error, 1323 EINVAL, 1324 RTE_FLOW_ERROR_TYPE_ACTION, 1325 act, 1326 "Invalid queue ID for RSS"); 1327 rc = -rte_errno; 1328 goto ret; 1329 } 1330 rxq = bp->rx_queues[rss->queue[i]]; 1331 1332 if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] != 1333 INVALID_HW_RING_ID) { 1334 PMD_DRV_LOG(ERR, 1335 "queue active with other VNIC\n"); 1336 rte_flow_error_set(error, 1337 EINVAL, 1338 RTE_FLOW_ERROR_TYPE_ACTION, 1339 act, 1340 "Invalid queue ID for RSS"); 1341 rc = -rte_errno; 1342 goto ret; 1343 } 1344 1345 rxq->vnic = vnic; 1346 rxq->rx_started = 1; 1347 vnic->rx_queue_cnt++; 1348 } 1349 1350 vnic->start_grp_id = rss->queue[0]; 1351 vnic->end_grp_id = rss->queue[rss->queue_num - 1]; 1352 vnic->func_default = 0; //This is not a default VNIC. 1353 1354 rc = bnxt_vnic_prep(bp, vnic); 1355 if (rc) { 1356 rte_flow_error_set(error, 1357 EINVAL, 1358 RTE_FLOW_ERROR_TYPE_ACTION, 1359 act, 1360 "VNIC prep fail"); 1361 rc = -rte_errno; 1362 goto ret; 1363 } 1364 1365 PMD_DRV_LOG(DEBUG, 1366 "vnic[%d] = %p vnic->fw_grp_ids = %p\n", 1367 vnic_id, vnic, vnic->fw_grp_ids); 1368 1369 vnic->ff_pool_idx = vnic_id; 1370 PMD_DRV_LOG(DEBUG, 1371 "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx); 1372 1373 /* This can be done only after vnic_grp_alloc is done. */ 1374 for (i = 0; i < vnic->rx_queue_cnt; i++) { 1375 vnic->fw_grp_ids[i] = 1376 bp->grp_info[rss->queue[i]].fw_grp_id; 1377 /* Make sure vnic0 does not use these rings. */ 1378 bp->vnic_info[0].fw_grp_ids[rss->queue[i]] = 1379 INVALID_HW_RING_ID; 1380 } 1381 1382 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) { 1383 for (i = 0; i < vnic->rx_queue_cnt; i++) 1384 vnic->rss_table[rss_idx++] = 1385 vnic->fw_grp_ids[i]; 1386 } 1387 1388 /* Configure RSS only if the queue count is > 1 */ 1389 if (vnic->rx_queue_cnt > 1) { 1390 vnic->hash_type = 1391 bnxt_rte_to_hwrm_hash_types(rss->types); 1392 1393 if (!rss->key_len) { 1394 /* If hash key has not been specified, 1395 * use random hash key. 1396 */ 1397 prandom_bytes(vnic->rss_hash_key, 1398 HW_HASH_KEY_SIZE); 1399 } else { 1400 if (rss->key_len > HW_HASH_KEY_SIZE) 1401 memcpy(vnic->rss_hash_key, 1402 rss->key, 1403 HW_HASH_KEY_SIZE); 1404 else 1405 memcpy(vnic->rss_hash_key, 1406 rss->key, 1407 rss->key_len); 1408 } 1409 bnxt_hwrm_vnic_rss_cfg(bp, vnic); 1410 } else { 1411 PMD_DRV_LOG(DEBUG, "No RSS config required\n"); 1412 } 1413 1414 vnic_found: 1415 filter->dst_id = vnic->fw_vnic_id; 1416 filter1 = bnxt_get_l2_filter(bp, filter, vnic); 1417 if (filter1 == NULL) { 1418 rte_flow_error_set(error, 1419 ENOSPC, 1420 RTE_FLOW_ERROR_TYPE_ACTION, 1421 act, 1422 "New filter not available"); 1423 rc = -rte_errno; 1424 goto ret; 1425 } 1426 1427 PMD_DRV_LOG(DEBUG, "L2 filter created\n"); 1428 bnxt_update_filter_flags_en(filter, filter1, use_ntuple); 1429 break; 1430 case RTE_FLOW_ACTION_TYPE_MARK: 1431 if (bp->flags & BNXT_FLAG_RX_VECTOR_PKT_MODE) { 1432 PMD_DRV_LOG(DEBUG, 1433 "Disable vector processing for mark\n"); 1434 rte_flow_error_set(error, 1435 ENOTSUP, 1436 RTE_FLOW_ERROR_TYPE_ACTION, 1437 act, 1438 "Disable vector processing for mark"); 1439 rc = -rte_errno; 1440 goto ret; 1441 } 1442 1443 if (bp->mark_table == NULL) { 1444 rte_flow_error_set(error, 1445 ENOMEM, 1446 RTE_FLOW_ERROR_TYPE_ACTION, 1447 act, 1448 "Mark table not allocated."); 1449 rc = -rte_errno; 1450 goto ret; 1451 } 1452 1453 filter->valid_flags |= BNXT_FLOW_MARK_FLAG; 1454 filter->mark = ((const struct rte_flow_action_mark *) 1455 act->conf)->id; 1456 PMD_DRV_LOG(DEBUG, "Mark the flow %d\n", filter->mark); 1457 break; 1458 default: 1459 rte_flow_error_set(error, 1460 EINVAL, 1461 RTE_FLOW_ERROR_TYPE_ACTION, 1462 act, 1463 "Invalid action."); 1464 rc = -rte_errno; 1465 goto ret; 1466 } 1467 1468 done: 1469 act = bnxt_flow_non_void_action(++act); 1470 while (act->type != RTE_FLOW_ACTION_TYPE_END) 1471 goto start; 1472 1473 return rc; 1474 ret: 1475 1476 if (filter1) { 1477 bnxt_hwrm_clear_l2_filter(bp, filter1); 1478 bnxt_free_filter(bp, filter1); 1479 } 1480 1481 if (rte_errno) { 1482 if (vnic && STAILQ_EMPTY(&vnic->filter)) 1483 vnic->rx_queue_cnt = 0; 1484 1485 if (rxq && !vnic->rx_queue_cnt) 1486 rxq->vnic = &bp->vnic_info[0]; 1487 } 1488 return -rte_errno; 1489 } 1490 1491 static 1492 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp, 1493 struct bnxt_filter_info *filter) 1494 { 1495 struct bnxt_vnic_info *vnic = NULL; 1496 unsigned int i; 1497 1498 for (i = 0; i < bp->max_vnics; i++) { 1499 vnic = &bp->vnic_info[i]; 1500 if (vnic->fw_vnic_id != INVALID_VNIC_ID && 1501 filter->dst_id == vnic->fw_vnic_id) { 1502 PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n", 1503 vnic->ff_pool_idx); 1504 return vnic; 1505 } 1506 } 1507 return NULL; 1508 } 1509 1510 static int 1511 bnxt_flow_validate(struct rte_eth_dev *dev, 1512 const struct rte_flow_attr *attr, 1513 const struct rte_flow_item pattern[], 1514 const struct rte_flow_action actions[], 1515 struct rte_flow_error *error) 1516 { 1517 struct bnxt *bp = dev->data->dev_private; 1518 struct bnxt_vnic_info *vnic = NULL; 1519 struct bnxt_filter_info *filter; 1520 int ret = 0; 1521 1522 bnxt_acquire_flow_lock(bp); 1523 ret = bnxt_flow_args_validate(attr, pattern, actions, error); 1524 if (ret != 0) { 1525 bnxt_release_flow_lock(bp); 1526 return ret; 1527 } 1528 1529 filter = bnxt_get_unused_filter(bp); 1530 if (filter == NULL) { 1531 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n"); 1532 bnxt_release_flow_lock(bp); 1533 return -ENOMEM; 1534 } 1535 1536 ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr, 1537 error, filter); 1538 if (ret) 1539 goto exit; 1540 1541 vnic = find_matching_vnic(bp, filter); 1542 if (vnic) { 1543 if (STAILQ_EMPTY(&vnic->filter)) { 1544 rte_free(vnic->fw_grp_ids); 1545 bnxt_hwrm_vnic_ctx_free(bp, vnic); 1546 bnxt_hwrm_vnic_free(bp, vnic); 1547 vnic->rx_queue_cnt = 0; 1548 PMD_DRV_LOG(DEBUG, "Free VNIC\n"); 1549 } 1550 } 1551 1552 if (filter->filter_type == HWRM_CFA_EM_FILTER) 1553 bnxt_hwrm_clear_em_filter(bp, filter); 1554 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) 1555 bnxt_hwrm_clear_ntuple_filter(bp, filter); 1556 else 1557 bnxt_hwrm_clear_l2_filter(bp, filter); 1558 1559 exit: 1560 /* No need to hold on to this filter if we are just validating flow */ 1561 bnxt_free_filter(bp, filter); 1562 bnxt_release_flow_lock(bp); 1563 1564 return ret; 1565 } 1566 1567 static void 1568 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter, 1569 struct bnxt_filter_info *new_filter) 1570 { 1571 /* Clear the new L2 filter that was created in the previous step in 1572 * bnxt_validate_and_parse_flow. For L2 filters, we will use the new 1573 * filter which points to the new destination queue and so we clear 1574 * the previous L2 filter. For ntuple filters, we are going to reuse 1575 * the old L2 filter and create new NTUPLE filter with this new 1576 * destination queue subsequently during bnxt_flow_create. So we 1577 * decrement the ref cnt of the L2 filter that would've been bumped 1578 * up previously in bnxt_validate_and_parse_flow as the old n-tuple 1579 * filter that was referencing it will be deleted now. 1580 */ 1581 bnxt_hwrm_clear_l2_filter(bp, old_filter); 1582 if (new_filter->filter_type == HWRM_CFA_L2_FILTER) { 1583 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter); 1584 } else { 1585 if (new_filter->filter_type == HWRM_CFA_EM_FILTER) 1586 bnxt_hwrm_clear_em_filter(bp, old_filter); 1587 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER) 1588 bnxt_hwrm_clear_ntuple_filter(bp, old_filter); 1589 } 1590 } 1591 1592 static int 1593 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf) 1594 { 1595 struct bnxt_filter_info *mf; 1596 struct rte_flow *flow; 1597 int i; 1598 1599 for (i = bp->max_vnics - 1; i >= 0; i--) { 1600 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 1601 1602 if (vnic->fw_vnic_id == INVALID_VNIC_ID) 1603 continue; 1604 1605 STAILQ_FOREACH(flow, &vnic->flow_list, next) { 1606 mf = flow->filter; 1607 1608 if (mf->filter_type == nf->filter_type && 1609 mf->flags == nf->flags && 1610 mf->src_port == nf->src_port && 1611 mf->src_port_mask == nf->src_port_mask && 1612 mf->dst_port == nf->dst_port && 1613 mf->dst_port_mask == nf->dst_port_mask && 1614 mf->ip_protocol == nf->ip_protocol && 1615 mf->ip_addr_type == nf->ip_addr_type && 1616 mf->ethertype == nf->ethertype && 1617 mf->vni == nf->vni && 1618 mf->tunnel_type == nf->tunnel_type && 1619 mf->l2_ovlan == nf->l2_ovlan && 1620 mf->l2_ovlan_mask == nf->l2_ovlan_mask && 1621 mf->l2_ivlan == nf->l2_ivlan && 1622 mf->l2_ivlan_mask == nf->l2_ivlan_mask && 1623 !memcmp(mf->l2_addr, nf->l2_addr, 1624 RTE_ETHER_ADDR_LEN) && 1625 !memcmp(mf->l2_addr_mask, nf->l2_addr_mask, 1626 RTE_ETHER_ADDR_LEN) && 1627 !memcmp(mf->src_macaddr, nf->src_macaddr, 1628 RTE_ETHER_ADDR_LEN) && 1629 !memcmp(mf->dst_macaddr, nf->dst_macaddr, 1630 RTE_ETHER_ADDR_LEN) && 1631 !memcmp(mf->src_ipaddr, nf->src_ipaddr, 1632 sizeof(nf->src_ipaddr)) && 1633 !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask, 1634 sizeof(nf->src_ipaddr_mask)) && 1635 !memcmp(mf->dst_ipaddr, nf->dst_ipaddr, 1636 sizeof(nf->dst_ipaddr)) && 1637 !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask, 1638 sizeof(nf->dst_ipaddr_mask))) { 1639 if (mf->dst_id == nf->dst_id) 1640 return -EEXIST; 1641 /* Free the old filter, update flow 1642 * with new filter 1643 */ 1644 bnxt_update_filter(bp, mf, nf); 1645 STAILQ_REMOVE(&vnic->filter, mf, 1646 bnxt_filter_info, next); 1647 STAILQ_INSERT_TAIL(&vnic->filter, nf, next); 1648 bnxt_free_filter(bp, mf); 1649 flow->filter = nf; 1650 return -EXDEV; 1651 } 1652 } 1653 } 1654 return 0; 1655 } 1656 1657 static struct rte_flow * 1658 bnxt_flow_create(struct rte_eth_dev *dev, 1659 const struct rte_flow_attr *attr, 1660 const struct rte_flow_item pattern[], 1661 const struct rte_flow_action actions[], 1662 struct rte_flow_error *error) 1663 { 1664 struct bnxt *bp = dev->data->dev_private; 1665 struct bnxt_vnic_info *vnic = NULL; 1666 struct bnxt_filter_info *filter; 1667 bool update_flow = false; 1668 struct rte_flow *flow; 1669 int ret = 0; 1670 uint32_t tun_type; 1671 1672 if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) { 1673 rte_flow_error_set(error, EINVAL, 1674 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1675 "Failed to create flow, Not a Trusted VF!"); 1676 return NULL; 1677 } 1678 1679 if (!dev->data->dev_started) { 1680 rte_flow_error_set(error, 1681 EINVAL, 1682 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, 1683 NULL, 1684 "Device must be started"); 1685 return NULL; 1686 } 1687 1688 flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0); 1689 if (!flow) { 1690 rte_flow_error_set(error, ENOMEM, 1691 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1692 "Failed to allocate memory"); 1693 return flow; 1694 } 1695 1696 bnxt_acquire_flow_lock(bp); 1697 ret = bnxt_flow_args_validate(attr, pattern, actions, error); 1698 if (ret != 0) { 1699 PMD_DRV_LOG(ERR, "Not a validate flow.\n"); 1700 goto free_flow; 1701 } 1702 1703 filter = bnxt_get_unused_filter(bp); 1704 if (filter == NULL) { 1705 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n"); 1706 goto free_flow; 1707 } 1708 1709 ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr, 1710 error, filter); 1711 if (ret != 0) 1712 goto free_filter; 1713 1714 ret = bnxt_match_filter(bp, filter); 1715 if (ret == -EEXIST) { 1716 PMD_DRV_LOG(DEBUG, "Flow already exists.\n"); 1717 /* Clear the filter that was created as part of 1718 * validate_and_parse_flow() above 1719 */ 1720 bnxt_hwrm_clear_l2_filter(bp, filter); 1721 goto free_filter; 1722 } else if (ret == -EXDEV) { 1723 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n"); 1724 PMD_DRV_LOG(DEBUG, "Updating with different destination\n"); 1725 update_flow = true; 1726 } 1727 1728 /* If tunnel redirection to a VF/PF is specified then only tunnel_type 1729 * is set and enable is set to the tunnel type. Issue hwrm cmd directly 1730 * in such a case. 1731 */ 1732 if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER && 1733 filter->enables == filter->tunnel_type) { 1734 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type); 1735 if (ret) { 1736 rte_flow_error_set(error, -ret, 1737 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1738 "Unable to query tunnel to VF"); 1739 goto free_filter; 1740 } 1741 if (tun_type == (1U << filter->tunnel_type)) { 1742 ret = 1743 bnxt_hwrm_tunnel_redirect_free(bp, 1744 filter->tunnel_type); 1745 if (ret) { 1746 PMD_DRV_LOG(ERR, 1747 "Unable to free existing tunnel\n"); 1748 rte_flow_error_set(error, -ret, 1749 RTE_FLOW_ERROR_TYPE_HANDLE, 1750 NULL, 1751 "Unable to free preexisting " 1752 "tunnel on VF"); 1753 goto free_filter; 1754 } 1755 } 1756 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type); 1757 if (ret) { 1758 rte_flow_error_set(error, -ret, 1759 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1760 "Unable to redirect tunnel to VF"); 1761 goto free_filter; 1762 } 1763 vnic = &bp->vnic_info[0]; 1764 goto done; 1765 } 1766 1767 if (filter->filter_type == HWRM_CFA_EM_FILTER) { 1768 filter->enables |= 1769 HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID; 1770 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter); 1771 } 1772 1773 if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) { 1774 filter->enables |= 1775 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID; 1776 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter); 1777 } 1778 1779 vnic = find_matching_vnic(bp, filter); 1780 done: 1781 if (!ret || update_flow) { 1782 flow->filter = filter; 1783 flow->vnic = vnic; 1784 if (update_flow) { 1785 ret = -EXDEV; 1786 goto free_flow; 1787 } 1788 1789 STAILQ_INSERT_TAIL(&vnic->filter, filter, next); 1790 PMD_DRV_LOG(DEBUG, "Successfully created flow.\n"); 1791 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next); 1792 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) { 1793 PMD_DRV_LOG(DEBUG, 1794 "Mark action: mark id 0x%x, flow id 0x%x\n", 1795 filter->mark, filter->flow_id); 1796 1797 /* TCAM and EM should be 16-bit only. 1798 * Other modes not supported. 1799 */ 1800 bp->mark_table[filter->flow_id & BNXT_FLOW_ID_MASK] = 1801 filter->mark; 1802 } 1803 bnxt_release_flow_lock(bp); 1804 return flow; 1805 } 1806 1807 free_filter: 1808 bnxt_free_filter(bp, filter); 1809 free_flow: 1810 if (ret == -EEXIST) 1811 rte_flow_error_set(error, ret, 1812 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1813 "Matching Flow exists."); 1814 else if (ret == -EXDEV) 1815 rte_flow_error_set(error, 0, 1816 RTE_FLOW_ERROR_TYPE_NONE, NULL, 1817 "Flow with pattern exists, updating destination queue"); 1818 else if (!rte_errno) 1819 rte_flow_error_set(error, -ret, 1820 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1821 "Failed to create flow."); 1822 rte_free(flow); 1823 flow = NULL; 1824 bnxt_release_flow_lock(bp); 1825 return flow; 1826 } 1827 1828 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp, 1829 struct bnxt_filter_info *filter, 1830 struct rte_flow_error *error) 1831 { 1832 uint16_t tun_dst_fid; 1833 uint32_t tun_type; 1834 int ret = 0; 1835 1836 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type); 1837 if (ret) { 1838 rte_flow_error_set(error, -ret, 1839 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1840 "Unable to query tunnel to VF"); 1841 return ret; 1842 } 1843 if (tun_type == (1U << filter->tunnel_type)) { 1844 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type, 1845 &tun_dst_fid); 1846 if (ret) { 1847 rte_flow_error_set(error, -ret, 1848 RTE_FLOW_ERROR_TYPE_HANDLE, 1849 NULL, 1850 "tunnel_redirect info cmd fail"); 1851 return ret; 1852 } 1853 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n", 1854 tun_dst_fid + bp->first_vf_id, bp->fw_fid); 1855 1856 /* Tunnel doesn't belong to this VF, so don't send HWRM 1857 * cmd, just delete the flow from driver 1858 */ 1859 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id)) 1860 PMD_DRV_LOG(ERR, 1861 "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n"); 1862 else 1863 ret = bnxt_hwrm_tunnel_redirect_free(bp, 1864 filter->tunnel_type); 1865 } 1866 return ret; 1867 } 1868 1869 static int 1870 _bnxt_flow_destroy(struct bnxt *bp, 1871 struct rte_flow *flow, 1872 struct rte_flow_error *error) 1873 { 1874 struct bnxt_filter_info *filter; 1875 struct bnxt_vnic_info *vnic; 1876 int ret = 0; 1877 1878 filter = flow->filter; 1879 vnic = flow->vnic; 1880 1881 if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER && 1882 filter->enables == filter->tunnel_type) { 1883 ret = bnxt_handle_tunnel_redirect_destroy(bp, filter, error); 1884 if (!ret) 1885 goto done; 1886 else 1887 return ret; 1888 } 1889 1890 ret = bnxt_match_filter(bp, filter); 1891 if (ret == 0) 1892 PMD_DRV_LOG(ERR, "Could not find matching flow\n"); 1893 1894 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) { 1895 bp->mark_table[filter->flow_id & BNXT_FLOW_ID_MASK] = 0; 1896 filter->flow_id = 0; 1897 } 1898 1899 if (filter->filter_type == HWRM_CFA_EM_FILTER) 1900 ret = bnxt_hwrm_clear_em_filter(bp, filter); 1901 if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) 1902 ret = bnxt_hwrm_clear_ntuple_filter(bp, filter); 1903 ret = bnxt_hwrm_clear_l2_filter(bp, filter); 1904 1905 done: 1906 if (!ret) { 1907 /* If it is a L2 drop filter, when the filter is created, 1908 * the FW updates the BC/MC records. 1909 * Once this filter is removed, issue the set_rx_mask command 1910 * to reset the BC/MC records in the HW to the settings 1911 * before the drop counter is created. 1912 */ 1913 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG) 1914 bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]); 1915 1916 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next); 1917 bnxt_free_filter(bp, filter); 1918 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next); 1919 rte_free(flow); 1920 1921 /* If this was the last flow associated with this vnic, 1922 * switch the queue back to RSS pool. 1923 */ 1924 if (vnic && !vnic->func_default && 1925 STAILQ_EMPTY(&vnic->flow_list)) { 1926 rte_free(vnic->fw_grp_ids); 1927 if (vnic->rx_queue_cnt > 1) 1928 bnxt_hwrm_vnic_ctx_free(bp, vnic); 1929 1930 bnxt_hwrm_vnic_free(bp, vnic); 1931 vnic->rx_queue_cnt = 0; 1932 } 1933 } else { 1934 rte_flow_error_set(error, -ret, 1935 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1936 "Failed to destroy flow."); 1937 } 1938 1939 return ret; 1940 } 1941 1942 static int 1943 bnxt_flow_destroy(struct rte_eth_dev *dev, 1944 struct rte_flow *flow, 1945 struct rte_flow_error *error) 1946 { 1947 struct bnxt *bp = dev->data->dev_private; 1948 int ret = 0; 1949 1950 bnxt_acquire_flow_lock(bp); 1951 if (!flow) { 1952 rte_flow_error_set(error, EINVAL, 1953 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1954 "Invalid flow: failed to destroy flow."); 1955 bnxt_release_flow_lock(bp); 1956 return -EINVAL; 1957 } 1958 1959 if (!flow->filter) { 1960 rte_flow_error_set(error, EINVAL, 1961 RTE_FLOW_ERROR_TYPE_HANDLE, NULL, 1962 "Invalid flow: failed to destroy flow."); 1963 bnxt_release_flow_lock(bp); 1964 return -EINVAL; 1965 } 1966 ret = _bnxt_flow_destroy(bp, flow, error); 1967 bnxt_release_flow_lock(bp); 1968 1969 return ret; 1970 } 1971 1972 static int 1973 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error) 1974 { 1975 struct bnxt *bp = dev->data->dev_private; 1976 struct bnxt_vnic_info *vnic; 1977 struct rte_flow *flow; 1978 unsigned int i; 1979 int ret = 0; 1980 1981 bnxt_acquire_flow_lock(bp); 1982 for (i = 0; i < bp->max_vnics; i++) { 1983 vnic = &bp->vnic_info[i]; 1984 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID) 1985 continue; 1986 1987 while (!STAILQ_EMPTY(&vnic->flow_list)) { 1988 flow = STAILQ_FIRST(&vnic->flow_list); 1989 1990 if (!flow->filter) 1991 continue; 1992 1993 ret = _bnxt_flow_destroy(bp, flow, error); 1994 if (ret) 1995 break; 1996 } 1997 } 1998 bnxt_release_flow_lock(bp); 1999 2000 return ret; 2001 } 2002 2003 const struct rte_flow_ops bnxt_flow_ops = { 2004 .validate = bnxt_flow_validate, 2005 .create = bnxt_flow_create, 2006 .destroy = bnxt_flow_destroy, 2007 .flush = bnxt_flow_flush, 2008 }; 2009