drivers/net/bnxt/bnxt_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 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 #include <rte_alarm.h>
  14 #include <rte_cycles.h>
  15
  16 #include "bnxt.h"
  17 #include "bnxt_filter.h"
  18 #include "bnxt_hwrm.h"
  19 #include "bnxt_ring.h"
  20 #include "bnxt_rxq.h"
  21 #include "bnxt_rxr.h"
  22 #include "bnxt_vnic.h"
  23 #include "hsi_struct_def_dpdk.h"
  24
  25 static int
  26 bnxt_flow_args_validate(const struct rte_flow_attr *attr,
  27                         const struct rte_flow_item pattern[],
  28                         const struct rte_flow_action actions[],
  29                         struct rte_flow_error *error)
  30 {
  31         if (!pattern) {
  32                 rte_flow_error_set(error,
  33                                    EINVAL,
  34                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM,
  35                                    NULL,
  36                                    "NULL pattern.");
  37                 return -rte_errno;
  38         }
  39
  40         if (!actions) {
  41                 rte_flow_error_set(error,
  42                                    EINVAL,
  43                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
  44                                    NULL,
  45                                    "NULL action.");
  46                 return -rte_errno;
  47         }
  48
  49         if (!attr) {
  50                 rte_flow_error_set(error,
  51                                    EINVAL,
  52                                    RTE_FLOW_ERROR_TYPE_ATTR,
  53                                    NULL,
  54                                    "NULL attribute.");
  55                 return -rte_errno;
  56         }
  57
  58         return 0;
  59 }
  60
  61 static const struct rte_flow_item *
  62 bnxt_flow_non_void_item(const struct rte_flow_item *cur)
  63 {
  64         while (1) {
  65                 if (cur->type != RTE_FLOW_ITEM_TYPE_VOID)
  66                         return cur;
  67                 cur++;
  68         }
  69 }
  70
  71 static const struct rte_flow_action *
  72 bnxt_flow_non_void_action(const struct rte_flow_action *cur)
  73 {
  74         while (1) {
  75                 if (cur->type != RTE_FLOW_ACTION_TYPE_VOID)
  76                         return cur;
  77                 cur++;
  78         }
  79 }
  80
  81 static int
  82 bnxt_filter_type_check(const struct rte_flow_item pattern[],
  83                        struct rte_flow_error *error)
  84 {
  85         const struct rte_flow_item *item =
  86                 bnxt_flow_non_void_item(pattern);
  87         int use_ntuple = 1;
  88         bool has_vlan = 0;
  89
  90         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
  91                 switch (item->type) {
  92                 case RTE_FLOW_ITEM_TYPE_ANY:
  93                 case RTE_FLOW_ITEM_TYPE_ETH:
  94                         use_ntuple = 0;
  95                         break;
  96                 case RTE_FLOW_ITEM_TYPE_VLAN:
  97                         use_ntuple = 0;
  98                         has_vlan = 1;
  99                         break;
 100                 case RTE_FLOW_ITEM_TYPE_IPV4:
 101                 case RTE_FLOW_ITEM_TYPE_IPV6:
 102                 case RTE_FLOW_ITEM_TYPE_TCP:
 103                 case RTE_FLOW_ITEM_TYPE_UDP:
 104                         /* FALLTHROUGH */
 105                         /* need ntuple match, reset exact match */
 106                         use_ntuple |= 1;
 107                         break;
 108                 default:
 109                         PMD_DRV_LOG(DEBUG, "Unknown Flow type\n");
 110                         use_ntuple |= 0;
 111                 }
 112                 item++;
 113         }
 114
 115         if (has_vlan && use_ntuple) {
 116                 PMD_DRV_LOG(ERR,
 117                             "VLAN flow cannot use NTUPLE filter\n");
 118                 rte_flow_error_set(error, EINVAL,
 119                                    RTE_FLOW_ERROR_TYPE_ITEM,
 120                                    item,
 121                                    "Cannot use VLAN with NTUPLE");
 122                 return -rte_errno;
 123         }
 124
 125         return use_ntuple;
 126 }
 127
 128 static int
 129 bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 130                                   const struct rte_flow_attr *attr,
 131                                   const struct rte_flow_item pattern[],
 132                                   struct rte_flow_error *error,
 133                                   struct bnxt_filter_info *filter)
 134 {
 135         const struct rte_flow_item *item = bnxt_flow_non_void_item(pattern);
 136         const struct rte_flow_item_vlan *vlan_spec, *vlan_mask;
 137         const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
 138         const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
 139         const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
 140         const struct rte_flow_item_udp *udp_spec, *udp_mask;
 141         const struct rte_flow_item_eth *eth_spec, *eth_mask;
 142         const struct rte_ether_addr *dst, *src;
 143         const struct rte_flow_item_nvgre *nvgre_spec;
 144         const struct rte_flow_item_nvgre *nvgre_mask;
 145         const struct rte_flow_item_gre *gre_spec;
 146         const struct rte_flow_item_gre *gre_mask;
 147         const struct rte_flow_item_vxlan *vxlan_spec;
 148         const struct rte_flow_item_vxlan *vxlan_mask;
 149         uint8_t vni_mask[] = {0xFF, 0xFF, 0xFF};
 150         uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF};
 151         const struct rte_flow_item_vf *vf_spec;
 152         uint32_t tenant_id_be = 0, valid_flags = 0;
 153         bool vni_masked = 0;
 154         bool tni_masked = 0;
 155         uint32_t en_ethertype;
 156         uint8_t inner = 0;
 157         uint32_t vf = 0;
 158         uint32_t en = 0;
 159         int use_ntuple;
 160         int dflt_vnic;
 161
 162         use_ntuple = bnxt_filter_type_check(pattern, error);
 163         if (use_ntuple < 0)
 164                 return use_ntuple;
 165         PMD_DRV_LOG(DEBUG, "Use NTUPLE %d\n", use_ntuple);
 166
 167         filter->filter_type = use_ntuple ?
 168                 HWRM_CFA_NTUPLE_FILTER : HWRM_CFA_L2_FILTER;
 169         en_ethertype = use_ntuple ?
 170                 NTUPLE_FLTR_ALLOC_INPUT_EN_ETHERTYPE :
 171                 EM_FLOW_ALLOC_INPUT_EN_ETHERTYPE;
 172
 173         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
 174                 if (item->last) {
 175                         /* last or range is NOT supported as match criteria */
 176                         rte_flow_error_set(error, EINVAL,
 177                                            RTE_FLOW_ERROR_TYPE_ITEM,
 178                                            item,
 179                                            "No support for range");
 180                         return -rte_errno;
 181                 }
 182
 183                 switch (item->type) {
 184                 case RTE_FLOW_ITEM_TYPE_ANY:
 185                         inner =
 186                         ((const struct rte_flow_item_any *)item->spec)->num > 3;
 187                         if (inner)
 188                                 PMD_DRV_LOG(DEBUG, "Parse inner header\n");
 189                         break;
 190                 case RTE_FLOW_ITEM_TYPE_ETH:
 191                         if (!item->spec)
 192                                 break;
 193
 194                         eth_spec = item->spec;
 195
 196                         if (item->mask)
 197                                 eth_mask = item->mask;
 198                         else
 199                                 eth_mask = &rte_flow_item_eth_mask;
 200
 201                         /* Source MAC address mask cannot be partially set.
 202                          * Should be All 0's or all 1's.
 203                          * Destination MAC address mask must not be partially
 204                          * set. Should be all 1's or all 0's.
 205                          */
 206                         if ((!rte_is_zero_ether_addr(&eth_mask->src) &&
 207                              !rte_is_broadcast_ether_addr(&eth_mask->src)) ||
 208                             (!rte_is_zero_ether_addr(&eth_mask->dst) &&
 209                              !rte_is_broadcast_ether_addr(&eth_mask->dst))) {
 210                                 rte_flow_error_set(error,
 211                                                    EINVAL,
 212                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 213                                                    item,
 214                                                    "MAC_addr mask not valid");
 215                                 return -rte_errno;
 216                         }
 217
 218                         /* Mask is not allowed. Only exact matches are */
 219                         if (eth_mask->type &&
 220                             eth_mask->type != RTE_BE16(0xffff)) {
 221                                 rte_flow_error_set(error, EINVAL,
 222                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 223                                                    item,
 224                                                    "ethertype mask not valid");
 225                                 return -rte_errno;
 226                         }
 227
 228                         if (rte_is_broadcast_ether_addr(&eth_mask->dst)) {
 229                                 dst = &eth_spec->dst;
 230                                 if (!rte_is_valid_assigned_ether_addr(dst)) {
 231                                         rte_flow_error_set(error,
 232                                                            EINVAL,
 233                                                            RTE_FLOW_ERROR_TYPE_ITEM,
 234                                                            item,
 235                                                            "DMAC is invalid");
 236                                         PMD_DRV_LOG(ERR,
 237                                                     "DMAC is invalid!\n");
 238                                         return -rte_errno;
 239                                 }
 240                                 rte_memcpy(filter->dst_macaddr,
 241                                            &eth_spec->dst, RTE_ETHER_ADDR_LEN);
 242                                 en |= use_ntuple ?
 243                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_MACADDR :
 244                                         EM_FLOW_ALLOC_INPUT_EN_DST_MACADDR;
 245                                 valid_flags |= inner ?
 246                                         BNXT_FLOW_L2_INNER_DST_VALID_FLAG :
 247                                         BNXT_FLOW_L2_DST_VALID_FLAG;
 248                                 filter->priority = attr->priority;
 249                                 PMD_DRV_LOG(DEBUG,
 250                                             "Creating a priority flow\n");
 251                         }
 252                         if (rte_is_broadcast_ether_addr(&eth_mask->src)) {
 253                                 src = &eth_spec->src;
 254                                 if (!rte_is_valid_assigned_ether_addr(src)) {
 255                                         rte_flow_error_set(error,
 256                                                            EINVAL,
 257                                                            RTE_FLOW_ERROR_TYPE_ITEM,
 258                                                            item,
 259                                                            "SMAC is invalid");
 260                                         PMD_DRV_LOG(ERR,
 261                                                     "SMAC is invalid!\n");
 262                                         return -rte_errno;
 263                                 }
 264                                 rte_memcpy(filter->src_macaddr,
 265                                            &eth_spec->src, RTE_ETHER_ADDR_LEN);
 266                                 en |= use_ntuple ?
 267                                         NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR :
 268                                         EM_FLOW_ALLOC_INPUT_EN_SRC_MACADDR;
 269                                 valid_flags |= inner ?
 270                                         BNXT_FLOW_L2_INNER_SRC_VALID_FLAG :
 271                                         BNXT_FLOW_L2_SRC_VALID_FLAG;
 272                         } /*
 273                            * else {
 274                            *  PMD_DRV_LOG(ERR, "Handle this condition\n");
 275                            * }
 276                            */
 277                         if (eth_mask->type) {
 278                                 filter->ethertype =
 279                                         rte_be_to_cpu_16(eth_spec->type);
 280                                 en |= en_ethertype;
 281                         }
 282                         if (inner)
 283                                 valid_flags |= BNXT_FLOW_PARSE_INNER_FLAG;
 284
 285                         break;
 286                 case RTE_FLOW_ITEM_TYPE_VLAN:
 287                         vlan_spec = item->spec;
 288
 289                         if (item->mask)
 290                                 vlan_mask = item->mask;
 291                         else
 292                                 vlan_mask = &rte_flow_item_vlan_mask;
 293
 294                         if (en & en_ethertype) {
 295                                 rte_flow_error_set(error, EINVAL,
 296                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 297                                                    item,
 298                                                    "VLAN TPID matching is not"
 299                                                    " supported");
 300                                 return -rte_errno;
 301                         }
 302                         if (vlan_mask->tci &&
 303                             vlan_mask->tci == RTE_BE16(0x0fff)) {
 304                                 /* Only the VLAN ID can be matched. */
 305                                 filter->l2_ovlan =
 306                                         rte_be_to_cpu_16(vlan_spec->tci &
 307                                                          RTE_BE16(0x0fff));
 308                                 en |= EM_FLOW_ALLOC_INPUT_EN_OVLAN_VID;
 309                         } else {
 310                                 rte_flow_error_set(error,
 311                                                    EINVAL,
 312                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 313                                                    item,
 314                                                    "VLAN mask is invalid");
 315                                 return -rte_errno;
 316                         }
 317                         if (vlan_mask->inner_type &&
 318                             vlan_mask->inner_type != RTE_BE16(0xffff)) {
 319                                 rte_flow_error_set(error, EINVAL,
 320                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 321                                                    item,
 322                                                    "inner ethertype mask not"
 323                                                    " valid");
 324                                 return -rte_errno;
 325                         }
 326                         if (vlan_mask->inner_type) {
 327                                 filter->ethertype =
 328                                         rte_be_to_cpu_16(vlan_spec->inner_type);
 329                                 en |= en_ethertype;
 330                         }
 331
 332                         break;
 333                 case RTE_FLOW_ITEM_TYPE_IPV4:
 334                         /* If mask is not involved, we could use EM filters. */
 335                         ipv4_spec = item->spec;
 336
 337                         if (!item->spec)
 338                                 break;
 339
 340                         if (item->mask)
 341                                 ipv4_mask = item->mask;
 342                         else
 343                                 ipv4_mask = &rte_flow_item_ipv4_mask;
 344
 345                         /* Only IP DST and SRC fields are maskable. */
 346                         if (ipv4_mask->hdr.version_ihl ||
 347                             ipv4_mask->hdr.type_of_service ||
 348                             ipv4_mask->hdr.total_length ||
 349                             ipv4_mask->hdr.packet_id ||
 350                             ipv4_mask->hdr.fragment_offset ||
 351                             ipv4_mask->hdr.time_to_live ||
 352                             ipv4_mask->hdr.next_proto_id ||
 353                             ipv4_mask->hdr.hdr_checksum) {
 354                                 rte_flow_error_set(error,
 355                                                    EINVAL,
 356                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 357                                                    item,
 358                                                    "Invalid IPv4 mask.");
 359                                 return -rte_errno;
 360                         }
 361
 362                         filter->dst_ipaddr[0] = ipv4_spec->hdr.dst_addr;
 363                         filter->src_ipaddr[0] = ipv4_spec->hdr.src_addr;
 364
 365                         if (use_ntuple)
 366                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 367                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 368                         else
 369                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 370                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 371
 372                         if (ipv4_mask->hdr.src_addr) {
 373                                 filter->src_ipaddr_mask[0] =
 374                                         ipv4_mask->hdr.src_addr;
 375                                 en |= !use_ntuple ? 0 :
 376                                      NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 377                         }
 378
 379                         if (ipv4_mask->hdr.dst_addr) {
 380                                 filter->dst_ipaddr_mask[0] =
 381                                         ipv4_mask->hdr.dst_addr;
 382                                 en |= !use_ntuple ? 0 :
 383                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 384                         }
 385
 386                         filter->ip_addr_type = use_ntuple ?
 387                          HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_IP_ADDR_TYPE_IPV4 :
 388                          HWRM_CFA_EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV4;
 389
 390                         if (ipv4_spec->hdr.next_proto_id) {
 391                                 filter->ip_protocol =
 392                                         ipv4_spec->hdr.next_proto_id;
 393                                 if (use_ntuple)
 394                                         en |= NTUPLE_FLTR_ALLOC_IN_EN_IP_PROTO;
 395                                 else
 396                                         en |= EM_FLOW_ALLOC_INPUT_EN_IP_PROTO;
 397                         }
 398                         break;
 399                 case RTE_FLOW_ITEM_TYPE_IPV6:
 400                         ipv6_spec = item->spec;
 401
 402                         if (!item->spec)
 403                                 break;
 404
 405                         if (item->mask)
 406                                 ipv6_mask = item->mask;
 407                         else
 408                                 ipv6_mask = &rte_flow_item_ipv6_mask;
 409
 410                         /* Only IP DST and SRC fields are maskable. */
 411                         if (ipv6_mask->hdr.vtc_flow ||
 412                             ipv6_mask->hdr.payload_len ||
 413                             ipv6_mask->hdr.proto ||
 414                             ipv6_mask->hdr.hop_limits) {
 415                                 rte_flow_error_set(error,
 416                                                    EINVAL,
 417                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 418                                                    item,
 419                                                    "Invalid IPv6 mask.");
 420                                 return -rte_errno;
 421                         }
 422
 423                         if (use_ntuple)
 424                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 425                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 426                         else
 427                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 428                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 429
 430                         rte_memcpy(filter->src_ipaddr,
 431                                    ipv6_spec->hdr.src_addr, 16);
 432                         rte_memcpy(filter->dst_ipaddr,
 433                                    ipv6_spec->hdr.dst_addr, 16);
 434
 435                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.src_addr,
 436                                                    16)) {
 437                                 rte_memcpy(filter->src_ipaddr_mask,
 438                                            ipv6_mask->hdr.src_addr, 16);
 439                                 en |= !use_ntuple ? 0 :
 440                                     NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 441                         }
 442
 443                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.dst_addr,
 444                                                    16)) {
 445                                 rte_memcpy(filter->dst_ipaddr_mask,
 446                                            ipv6_mask->hdr.dst_addr, 16);
 447                                 en |= !use_ntuple ? 0 :
 448                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 449                         }
 450
 451                         filter->ip_addr_type = use_ntuple ?
 452                                 NTUPLE_FLTR_ALLOC_INPUT_IP_ADDR_TYPE_IPV6 :
 453                                 EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV6;
 454                         break;
 455                 case RTE_FLOW_ITEM_TYPE_TCP:
 456                         tcp_spec = item->spec;
 457
 458                         if (!item->spec)
 459                                 break;
 460
 461                         if (item->mask)
 462                                 tcp_mask = item->mask;
 463                         else
 464                                 tcp_mask = &rte_flow_item_tcp_mask;
 465
 466                         /* Check TCP mask. Only DST & SRC ports are maskable */
 467                         if (tcp_mask->hdr.sent_seq ||
 468                             tcp_mask->hdr.recv_ack ||
 469                             tcp_mask->hdr.data_off ||
 470                             tcp_mask->hdr.tcp_flags ||
 471                             tcp_mask->hdr.rx_win ||
 472                             tcp_mask->hdr.cksum ||
 473                             tcp_mask->hdr.tcp_urp) {
 474                                 rte_flow_error_set(error,
 475                                                    EINVAL,
 476                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 477                                                    item,
 478                                                    "Invalid TCP mask");
 479                                 return -rte_errno;
 480                         }
 481
 482                         filter->src_port = tcp_spec->hdr.src_port;
 483                         filter->dst_port = tcp_spec->hdr.dst_port;
 484
 485                         if (use_ntuple)
 486                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 487                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 488                         else
 489                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 490                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 491
 492                         if (tcp_mask->hdr.dst_port) {
 493                                 filter->dst_port_mask = tcp_mask->hdr.dst_port;
 494                                 en |= !use_ntuple ? 0 :
 495                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 496                         }
 497
 498                         if (tcp_mask->hdr.src_port) {
 499                                 filter->src_port_mask = tcp_mask->hdr.src_port;
 500                                 en |= !use_ntuple ? 0 :
 501                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 502                         }
 503                         break;
 504                 case RTE_FLOW_ITEM_TYPE_UDP:
 505                         udp_spec = item->spec;
 506
 507                         if (!item->spec)
 508                                 break;
 509
 510                         if (item->mask)
 511                                 udp_mask = item->mask;
 512                         else
 513                                 udp_mask = &rte_flow_item_udp_mask;
 514
 515                         if (udp_mask->hdr.dgram_len ||
 516                             udp_mask->hdr.dgram_cksum) {
 517                                 rte_flow_error_set(error,
 518                                                    EINVAL,
 519                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 520                                                    item,
 521                                                    "Invalid UDP mask");
 522                                 return -rte_errno;
 523                         }
 524
 525                         filter->src_port = udp_spec->hdr.src_port;
 526                         filter->dst_port = udp_spec->hdr.dst_port;
 527
 528                         if (use_ntuple)
 529                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 530                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 531                         else
 532                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 533                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 534
 535                         if (udp_mask->hdr.dst_port) {
 536                                 filter->dst_port_mask = udp_mask->hdr.dst_port;
 537                                 en |= !use_ntuple ? 0 :
 538                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 539                         }
 540
 541                         if (udp_mask->hdr.src_port) {
 542                                 filter->src_port_mask = udp_mask->hdr.src_port;
 543                                 en |= !use_ntuple ? 0 :
 544                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 545                         }
 546                         break;
 547                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 548                         vxlan_spec = item->spec;
 549                         vxlan_mask = item->mask;
 550                         /* Check if VXLAN item is used to describe protocol.
 551                          * If yes, both spec and mask should be NULL.
 552                          * If no, both spec and mask shouldn't be NULL.
 553                          */
 554                         if ((!vxlan_spec && vxlan_mask) ||
 555                             (vxlan_spec && !vxlan_mask)) {
 556                                 rte_flow_error_set(error,
 557                                                    EINVAL,
 558                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 559                                                    item,
 560                                                    "Invalid VXLAN item");
 561                                 return -rte_errno;
 562                         }
 563
 564                         if (!vxlan_spec && !vxlan_mask) {
 565                                 filter->tunnel_type =
 566                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 567                                 break;
 568                         }
 569
 570                         if (vxlan_spec->rsvd1 || vxlan_spec->rsvd0[0] ||
 571                             vxlan_spec->rsvd0[1] || vxlan_spec->rsvd0[2] ||
 572                             vxlan_spec->flags != 0x8) {
 573                                 rte_flow_error_set(error,
 574                                                    EINVAL,
 575                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 576                                                    item,
 577                                                    "Invalid VXLAN item");
 578                                 return -rte_errno;
 579                         }
 580
 581                         /* Check if VNI is masked. */
 582                         if (vxlan_mask != NULL) {
 583                                 vni_masked =
 584                                         !!memcmp(vxlan_mask->vni, vni_mask,
 585                                                  RTE_DIM(vni_mask));
 586                                 if (vni_masked) {
 587                                         rte_flow_error_set
 588                                                 (error,
 589                                                  EINVAL,
 590                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 591                                                  item,
 592                                                  "Invalid VNI mask");
 593                                         return -rte_errno;
 594                                 }
 595
 596                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 597                                            vxlan_spec->vni, 3);
 598                                 filter->vni =
 599                                         rte_be_to_cpu_32(tenant_id_be);
 600                                 filter->tunnel_type =
 601                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 602                         }
 603                         break;
 604                 case RTE_FLOW_ITEM_TYPE_NVGRE:
 605                         nvgre_spec = item->spec;
 606                         nvgre_mask = item->mask;
 607                         /* Check if NVGRE item is used to describe protocol.
 608                          * If yes, both spec and mask should be NULL.
 609                          * If no, both spec and mask shouldn't be NULL.
 610                          */
 611                         if ((!nvgre_spec && nvgre_mask) ||
 612                             (nvgre_spec && !nvgre_mask)) {
 613                                 rte_flow_error_set(error,
 614                                                    EINVAL,
 615                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 616                                                    item,
 617                                                    "Invalid NVGRE item");
 618                                 return -rte_errno;
 619                         }
 620
 621                         if (!nvgre_spec && !nvgre_mask) {
 622                                 filter->tunnel_type =
 623                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 624                                 break;
 625                         }
 626
 627                         if (nvgre_spec->c_k_s_rsvd0_ver != 0x2000 ||
 628                             nvgre_spec->protocol != 0x6558) {
 629                                 rte_flow_error_set(error,
 630                                                    EINVAL,
 631                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 632                                                    item,
 633                                                    "Invalid NVGRE item");
 634                                 return -rte_errno;
 635                         }
 636
 637                         if (nvgre_spec && nvgre_mask) {
 638                                 tni_masked =
 639                                         !!memcmp(nvgre_mask->tni, tni_mask,
 640                                                  RTE_DIM(tni_mask));
 641                                 if (tni_masked) {
 642                                         rte_flow_error_set
 643                                                 (error,
 644                                                  EINVAL,
 645                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 646                                                  item,
 647                                                  "Invalid TNI mask");
 648                                         return -rte_errno;
 649                                 }
 650                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 651                                            nvgre_spec->tni, 3);
 652                                 filter->vni =
 653                                         rte_be_to_cpu_32(tenant_id_be);
 654                                 filter->tunnel_type =
 655                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 656                         }
 657                         break;
 658
 659                 case RTE_FLOW_ITEM_TYPE_GRE:
 660                         gre_spec = (const struct rte_flow_item_gre *)item->spec;
 661                         gre_mask = (const struct rte_flow_item_gre *)item->mask;
 662
 663                         /*
 664                          *Check if GRE item is used to describe protocol.
 665                          * If yes, both spec and mask should be NULL.
 666                          * If no, both spec and mask shouldn't be NULL.
 667                          */
 668                         if (!!gre_spec ^ !!gre_mask) {
 669                                 rte_flow_error_set(error, EINVAL,
 670                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 671                                                    item,
 672                                                    "Invalid GRE item");
 673                                 return -rte_errno;
 674                         }
 675
 676                         if (!gre_spec && !gre_mask) {
 677                                 filter->tunnel_type =
 678                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE;
 679                                 break;
 680                         }
 681                         break;
 682
 683                 case RTE_FLOW_ITEM_TYPE_VF:
 684                         vf_spec = item->spec;
 685                         vf = vf_spec->id;
 686                         if (!BNXT_PF(bp)) {
 687                                 rte_flow_error_set(error,
 688                                                    EINVAL,
 689                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 690                                                    item,
 691                                                    "Configuring on a VF!");
 692                                 return -rte_errno;
 693                         }
 694
 695                         if (vf >= bp->pdev->max_vfs) {
 696                                 rte_flow_error_set(error,
 697                                                    EINVAL,
 698                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 699                                                    item,
 700                                                    "Incorrect VF id!");
 701                                 return -rte_errno;
 702                         }
 703
 704                         if (!attr->transfer) {
 705                                 rte_flow_error_set(error,
 706                                                    ENOTSUP,
 707                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 708                                                    item,
 709                                                    "Matching VF traffic without"
 710                                                    " affecting it (transfer attribute)"
 711                                                    " is unsupported");
 712                                 return -rte_errno;
 713                         }
 714
 715                         filter->mirror_vnic_id =
 716                         dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
 717                         if (dflt_vnic < 0) {
 718                                 /* This simply indicates there's no driver
 719                                  * loaded. This is not an error.
 720                                  */
 721                                 rte_flow_error_set
 722                                         (error,
 723                                          EINVAL,
 724                                          RTE_FLOW_ERROR_TYPE_ITEM,
 725                                          item,
 726                                          "Unable to get default VNIC for VF");
 727                                 return -rte_errno;
 728                         }
 729
 730                         filter->mirror_vnic_id = dflt_vnic;
 731                         en |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
 732                         break;
 733                 default:
 734                         break;
 735                 }
 736                 item++;
 737         }
 738         filter->enables = en;
 739         filter->valid_flags = valid_flags;
 740
 741         /* Items parsed but no filter to create in HW. */
 742         if (filter->enables == 0 && filter->valid_flags == 0)
 743                 filter->filter_type = HWRM_CFA_CONFIG;
 744
 745         return 0;
 746 }
 747
 748 /* Parse attributes */
 749 static int
 750 bnxt_flow_parse_attr(const struct rte_flow_attr *attr,
 751                      struct rte_flow_error *error)
 752 {
 753         /* Must be input direction */
 754         if (!attr->ingress) {
 755                 rte_flow_error_set(error,
 756                                    EINVAL,
 757                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 758                                    attr,
 759                                    "Only support ingress.");
 760                 return -rte_errno;
 761         }
 762
 763         /* Not supported */
 764         if (attr->egress) {
 765                 rte_flow_error_set(error,
 766                                    EINVAL,
 767                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 768                                    attr,
 769                                    "No support for egress.");
 770                 return -rte_errno;
 771         }
 772
 773         return 0;
 774 }
 775
 776 static struct bnxt_filter_info *
 777 bnxt_find_matching_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
 778 {
 779         struct bnxt_filter_info *mf, *f0;
 780         struct bnxt_vnic_info *vnic0;
 781         int i;
 782
 783         vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
 784         f0 = STAILQ_FIRST(&vnic0->filter);
 785
 786         /* This flow has same DST MAC as the port/l2 filter. */
 787         if (memcmp(f0->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN) == 0)
 788                 return f0;
 789
 790         for (i = bp->max_vnics - 1; i >= 0; i--) {
 791                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
 792
 793                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
 794                         continue;
 795
 796                 STAILQ_FOREACH(mf, &vnic->filter, next) {
 797
 798                         if (mf->matching_l2_fltr_ptr)
 799                                 continue;
 800
 801                         if (mf->ethertype == nf->ethertype &&
 802                             mf->l2_ovlan == nf->l2_ovlan &&
 803                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
 804                             mf->l2_ivlan == nf->l2_ivlan &&
 805                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
 806                             !memcmp(mf->src_macaddr, nf->src_macaddr,
 807                                     RTE_ETHER_ADDR_LEN) &&
 808                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
 809                                     RTE_ETHER_ADDR_LEN))
 810                                 return mf;
 811                 }
 812         }
 813         return NULL;
 814 }
 815
 816 static struct bnxt_filter_info *
 817 bnxt_create_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 818                       struct bnxt_vnic_info *vnic)
 819 {
 820         struct bnxt_filter_info *filter1;
 821         int rc;
 822
 823         /* Alloc new L2 filter.
 824          * This flow needs MAC filter which does not match any existing
 825          * L2 filters.
 826          */
 827         filter1 = bnxt_get_unused_filter(bp);
 828         if (filter1 == NULL)
 829                 return NULL;
 830
 831         memcpy(filter1, nf, sizeof(*filter1));
 832
 833         filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_XDP_DISABLE;
 834         filter1->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
 835         if (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 836             nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG) {
 837                 filter1->flags |=
 838                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 839                 PMD_DRV_LOG(DEBUG, "Create Outer filter\n");
 840         }
 841
 842         if (nf->filter_type == HWRM_CFA_L2_FILTER &&
 843             (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 844              nf->valid_flags & BNXT_FLOW_L2_INNER_SRC_VALID_FLAG)) {
 845                 PMD_DRV_LOG(DEBUG, "Create L2 filter for SRC MAC\n");
 846                 filter1->flags |=
 847                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_SOURCE_VALID;
 848                 memcpy(filter1->l2_addr, nf->src_macaddr, RTE_ETHER_ADDR_LEN);
 849         } else {
 850                 PMD_DRV_LOG(DEBUG, "Create L2 filter for DST MAC\n");
 851                 memcpy(filter1->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN);
 852         }
 853
 854         if (nf->priority &&
 855             (nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG ||
 856              nf->valid_flags & BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 857                 /* Tell the FW where to place the filter in the table. */
 858                 if (nf->priority > 65535) {
 859                         filter1->pri_hint =
 860                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_PRI_HINT_BELOW_FILTER;
 861                         /* This will place the filter in TCAM */
 862                         filter1->l2_filter_id_hint = (uint64_t)-1;
 863                 }
 864         }
 865
 866         if (nf->valid_flags & (BNXT_FLOW_L2_DST_VALID_FLAG |
 867                                BNXT_FLOW_L2_SRC_VALID_FLAG |
 868                                BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
 869                                BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 870                 filter1->enables =
 871                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
 872                         L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;
 873                 memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
 874         }
 875
 876         if (nf->valid_flags & BNXT_FLOW_L2_DROP_FLAG) {
 877                 filter1->flags |=
 878                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_DROP;
 879                 if (nf->ethertype == RTE_ETHER_TYPE_IPV4) {
 880                         /* Num VLANs for drop filter will/should be 0.
 881                          * If the req is memset to 0, then the count will
 882                          * be automatically set to 0.
 883                          */
 884                         if (nf->valid_flags & BNXT_FLOW_PARSE_INNER_FLAG) {
 885                                 filter1->enables |=
 886                                         L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS;
 887                         } else {
 888                                 filter1->enables |=
 889                                         L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS;
 890                                 filter1->flags |=
 891                                 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 892                         }
 893                 }
 894         }
 895
 896         rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id,
 897                                      filter1);
 898         if (rc) {
 899                 bnxt_free_filter(bp, filter1);
 900                 return NULL;
 901         }
 902         return filter1;
 903 }
 904
 905 struct bnxt_filter_info *
 906 bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 907                    struct bnxt_vnic_info *vnic)
 908 {
 909         struct bnxt_filter_info *l2_filter = NULL;
 910
 911         l2_filter = bnxt_find_matching_l2_filter(bp, nf);
 912         if (l2_filter) {
 913                 l2_filter->l2_ref_cnt++;
 914         } else {
 915                 l2_filter = bnxt_create_l2_filter(bp, nf, vnic);
 916                 if (l2_filter) {
 917                         STAILQ_INSERT_TAIL(&vnic->filter, l2_filter, next);
 918                         l2_filter->vnic = vnic;
 919                 }
 920         }
 921         nf->matching_l2_fltr_ptr = l2_filter;
 922
 923         return l2_filter;
 924 }
 925
 926 static void bnxt_vnic_cleanup(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 927 {
 928         if (vnic->rx_queue_cnt > 1)
 929                 bnxt_hwrm_vnic_ctx_free(bp, vnic);
 930
 931         bnxt_hwrm_vnic_free(bp, vnic);
 932
 933         rte_free(vnic->fw_grp_ids);
 934         vnic->fw_grp_ids = NULL;
 935
 936         vnic->rx_queue_cnt = 0;
 937 }
 938
 939 static int bnxt_vnic_prep(struct bnxt *bp, struct bnxt_vnic_info *vnic,
 940                           const struct rte_flow_action *act,
 941                           struct rte_flow_error *error)
 942 {
 943         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 944         uint64_t rx_offloads = dev_conf->rxmode.offloads;
 945         int rc;
 946
 947         if (bp->nr_vnics > bp->max_vnics - 1)
 948                 return rte_flow_error_set(error, EINVAL,
 949                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 950                                           NULL,
 951                                           "Group id is invalid");
 952
 953         rc = bnxt_vnic_grp_alloc(bp, vnic);
 954         if (rc)
 955                 return rte_flow_error_set(error, -rc,
 956                                           RTE_FLOW_ERROR_TYPE_ACTION,
 957                                           act,
 958                                           "Failed to alloc VNIC group");
 959
 960         rc = bnxt_hwrm_vnic_alloc(bp, vnic);
 961         if (rc) {
 962                 rte_flow_error_set(error, -rc,
 963                                    RTE_FLOW_ERROR_TYPE_ACTION,
 964                                    act,
 965                                    "Failed to alloc VNIC");
 966                 goto ret;
 967         }
 968
 969         /* RSS context is required only when there is more than one RSS ring */
 970         if (vnic->rx_queue_cnt > 1) {
 971                 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0);
 972                 if (rc) {
 973                         rte_flow_error_set(error, -rc,
 974                                            RTE_FLOW_ERROR_TYPE_ACTION,
 975                                            act,
 976                                            "Failed to alloc VNIC context");
 977                         goto ret;
 978                 }
 979         }
 980
 981         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 982                 vnic->vlan_strip = true;
 983         else
 984                 vnic->vlan_strip = false;
 985
 986         rc = bnxt_hwrm_vnic_cfg(bp, vnic);
 987         if (rc) {
 988                 rte_flow_error_set(error, -rc,
 989                                    RTE_FLOW_ERROR_TYPE_ACTION,
 990                                    act,
 991                                    "Failed to configure VNIC");
 992                 goto ret;
 993         }
 994
 995         rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
 996         if (rc) {
 997                 rte_flow_error_set(error, -rc,
 998                                    RTE_FLOW_ERROR_TYPE_ACTION,
 999                                    act,
1000                                    "Failed to configure VNIC plcmode");
1001                 goto ret;
1002         }
1003
1004         bp->nr_vnics++;
1005
1006         return 0;
1007
1008 ret:
1009         bnxt_vnic_cleanup(bp, vnic);
1010         return rc;
1011 }
1012
1013 static int match_vnic_rss_cfg(struct bnxt *bp,
1014                               struct bnxt_vnic_info *vnic,
1015                               const struct rte_flow_action_rss *rss)
1016 {
1017         unsigned int match = 0, i;
1018
1019         if (vnic->rx_queue_cnt != rss->queue_num)
1020                 return -EINVAL;
1021
1022         for (i = 0; i < rss->queue_num; i++) {
1023                 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt &&
1024                     !bp->rx_queues[rss->queue[i]]->rx_started)
1025                         return -EINVAL;
1026         }
1027
1028         for (i = 0; i < vnic->rx_queue_cnt; i++) {
1029                 int j;
1030
1031                 for (j = 0; j < vnic->rx_queue_cnt; j++) {
1032                         if (bp->grp_info[rss->queue[i]].fw_grp_id ==
1033                             vnic->fw_grp_ids[j])
1034                                 match++;
1035                 }
1036         }
1037
1038         if (match != vnic->rx_queue_cnt) {
1039                 PMD_DRV_LOG(ERR,
1040                             "VNIC queue count %d vs queues matched %d\n",
1041                             match, vnic->rx_queue_cnt);
1042                 return -EINVAL;
1043         }
1044
1045         return 0;
1046 }
1047
1048 static void
1049 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
1050                             struct bnxt_filter_info *filter1,
1051                             int use_ntuple)
1052 {
1053         if (!use_ntuple &&
1054             !(filter->valid_flags &
1055               ~(BNXT_FLOW_L2_DST_VALID_FLAG |
1056                 BNXT_FLOW_L2_SRC_VALID_FLAG |
1057                 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
1058                 BNXT_FLOW_L2_INNER_DST_VALID_FLAG |
1059                 BNXT_FLOW_L2_DROP_FLAG |
1060                 BNXT_FLOW_PARSE_INNER_FLAG))) {
1061                 filter->flags = filter1->flags;
1062                 filter->enables = filter1->enables;
1063                 filter->filter_type = HWRM_CFA_L2_FILTER;
1064                 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN);
1065                 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
1066                 filter->pri_hint = filter1->pri_hint;
1067                 filter->l2_filter_id_hint = filter1->l2_filter_id_hint;
1068         }
1069         filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1070         filter->l2_ref_cnt = filter1->l2_ref_cnt;
1071         filter->flow_id = filter1->flow_id;
1072         PMD_DRV_LOG(DEBUG,
1073                 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
1074                 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
1075 }
1076
1077 /* Valid actions supported along with RSS are count and mark. */
1078 static int
1079 bnxt_validate_rss_action(const struct rte_flow_action actions[])
1080 {
1081         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1082                 switch (actions->type) {
1083                 case RTE_FLOW_ACTION_TYPE_VOID:
1084                         break;
1085                 case RTE_FLOW_ACTION_TYPE_RSS:
1086                         break;
1087                 case RTE_FLOW_ACTION_TYPE_MARK:
1088                         break;
1089                 case RTE_FLOW_ACTION_TYPE_COUNT:
1090                         break;
1091                 default:
1092                         return -ENOTSUP;
1093                 }
1094         }
1095
1096         return 0;
1097 }
1098
1099 static int
1100 bnxt_get_vnic(struct bnxt *bp, uint32_t group)
1101 {
1102         int vnic_id = 0;
1103
1104         /* For legacy NS3 based implementations,
1105          * group_id will be mapped to a VNIC ID.
1106          */
1107         if (BNXT_STINGRAY(bp))
1108                 vnic_id = group;
1109
1110         /* Non NS3 cases, group_id will be ignored.
1111          * Setting will be configured on default VNIC.
1112          */
1113         return vnic_id;
1114 }
1115
1116 static int
1117 bnxt_vnic_rss_cfg_update(struct bnxt *bp,
1118                          struct bnxt_vnic_info *vnic,
1119                          const struct rte_flow_action *act,
1120                          struct rte_flow_error *error)
1121 {
1122         const struct rte_flow_action_rss *rss;
1123         unsigned int rss_idx, i;
1124         uint16_t hash_type;
1125         uint64_t types;
1126         int rc;
1127
1128         rss = (const struct rte_flow_action_rss *)act->conf;
1129
1130         /* Currently only Toeplitz hash is supported. */
1131         if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
1132             rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) {
1133                 rte_flow_error_set(error,
1134                                    ENOTSUP,
1135                                    RTE_FLOW_ERROR_TYPE_ACTION,
1136                                    act,
1137                                    "Unsupported RSS hash function");
1138                 rc = -rte_errno;
1139                 goto ret;
1140         }
1141
1142         /* key_len should match the hash key supported by hardware */
1143         if (rss->key_len != 0 && rss->key_len != HW_HASH_KEY_SIZE) {
1144                 rte_flow_error_set(error,
1145                                    EINVAL,
1146                                    RTE_FLOW_ERROR_TYPE_ACTION,
1147                                    act,
1148                                    "Incorrect hash key parameters");
1149                 rc = -rte_errno;
1150                 goto ret;
1151         }
1152
1153         /* Currently RSS hash on inner and outer headers are supported.
1154          * 0 => Default setting
1155          * 1 => Inner
1156          * 2 => Outer
1157          */
1158         if (rss->level > 2) {
1159                 rte_flow_error_set(error,
1160                                    ENOTSUP,
1161                                    RTE_FLOW_ERROR_TYPE_ACTION,
1162                                    act,
1163                                    "Unsupported hash level");
1164                 rc = -rte_errno;
1165                 goto ret;
1166         }
1167
1168         if ((rss->queue_num == 0 && rss->queue != NULL) ||
1169             (rss->queue_num != 0 && rss->queue == NULL)) {
1170                 rte_flow_error_set(error,
1171                                    EINVAL,
1172                                    RTE_FLOW_ERROR_TYPE_ACTION,
1173                                    act,
1174                                    "Invalid queue config specified");
1175                 rc = -rte_errno;
1176                 goto ret;
1177         }
1178
1179         /* If RSS types is 0, use a best effort configuration */
1180         types = rss->types ? rss->types : ETH_RSS_IPV4;
1181
1182         hash_type = bnxt_rte_to_hwrm_hash_types(types);
1183
1184         /* If requested types can't be supported, leave existing settings */
1185         if (hash_type)
1186                 vnic->hash_type = hash_type;
1187
1188         vnic->hash_mode =
1189                 bnxt_rte_to_hwrm_hash_level(bp, rss->types, rss->level);
1190
1191         /* Update RSS key only if key_len != 0 */
1192         if (rss->key_len != 0)
1193                 memcpy(vnic->rss_hash_key, rss->key, rss->key_len);
1194
1195         if (rss->queue_num == 0)
1196                 goto skip_rss_table;
1197
1198         /* Validate Rx queues */
1199         for (i = 0; i < rss->queue_num; i++) {
1200                 PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n", rss->queue[i]);
1201
1202                 if (rss->queue[i] >= bp->rx_nr_rings ||
1203                     !bp->rx_queues[rss->queue[i]]) {
1204                         rte_flow_error_set(error,
1205                                            EINVAL,
1206                                            RTE_FLOW_ERROR_TYPE_ACTION,
1207                                            act,
1208                                            "Invalid queue ID for RSS");
1209                         rc = -rte_errno;
1210                         goto ret;
1211                 }
1212         }
1213
1214         /* Prepare the indirection table */
1215         for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; rss_idx++) {
1216                 struct bnxt_rx_queue *rxq;
1217                 uint32_t idx;
1218
1219                 idx = rss->queue[rss_idx % rss->queue_num];
1220
1221                 if (BNXT_CHIP_P5(bp)) {
1222                         rxq = bp->rx_queues[idx];
1223                         vnic->rss_table[rss_idx * 2] =
1224                                 rxq->rx_ring->rx_ring_struct->fw_ring_id;
1225                         vnic->rss_table[rss_idx * 2 + 1] =
1226                                 rxq->cp_ring->cp_ring_struct->fw_ring_id;
1227                 } else {
1228                         vnic->rss_table[rss_idx] = vnic->fw_grp_ids[idx];
1229                 }
1230         }
1231
1232 skip_rss_table:
1233         rc = bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1234 ret:
1235         return rc;
1236 }
1237
1238 static int
1239 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
1240                              const struct rte_flow_item pattern[],
1241                              const struct rte_flow_action actions[],
1242                              const struct rte_flow_attr *attr,
1243                              struct rte_flow_error *error,
1244                              struct bnxt_filter_info *filter)
1245 {
1246         const struct rte_flow_action *act =
1247                 bnxt_flow_non_void_action(actions);
1248         struct bnxt *bp = dev->data->dev_private;
1249         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
1250         struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL;
1251         const struct rte_flow_action_queue *act_q;
1252         const struct rte_flow_action_vf *act_vf;
1253         struct bnxt_filter_info *filter1 = NULL;
1254         const struct rte_flow_action_rss *rss;
1255         struct bnxt_rx_queue *rxq = NULL;
1256         int dflt_vnic, vnic_id;
1257         unsigned int rss_idx;
1258         uint32_t vf = 0, i;
1259         int rc, use_ntuple;
1260
1261         rc =
1262         bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
1263         if (rc != 0)
1264                 goto ret;
1265
1266         rc = bnxt_flow_parse_attr(attr, error);
1267         if (rc != 0)
1268                 goto ret;
1269
1270         /* Since we support ingress attribute only - right now. */
1271         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1272                 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
1273
1274         use_ntuple = bnxt_filter_type_check(pattern, error);
1275
1276 start:
1277         switch (act->type) {
1278         case RTE_FLOW_ACTION_TYPE_QUEUE:
1279                 /* Allow this flow. Redirect to a VNIC. */
1280                 act_q = (const struct rte_flow_action_queue *)act->conf;
1281                 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
1282                         rte_flow_error_set(error,
1283                                            EINVAL,
1284                                            RTE_FLOW_ERROR_TYPE_ACTION,
1285                                            act,
1286                                            "Invalid queue ID.");
1287                         rc = -rte_errno;
1288                         goto ret;
1289                 }
1290                 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
1291
1292                 if (use_ntuple && !BNXT_RFS_NEEDS_VNIC(bp)) {
1293                         filter->flags =
1294                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DEST_RFS_RING_IDX;
1295                         filter->dst_id = act_q->index;
1296                         goto skip_vnic_alloc;
1297                 }
1298
1299                 vnic_id = attr->group;
1300                 if (!vnic_id) {
1301                         PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1302                         vnic_id = act_q->index;
1303                 }
1304
1305                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1306
1307                 vnic = &bp->vnic_info[vnic_id];
1308                 if (vnic->rx_queue_cnt) {
1309                         if (vnic->start_grp_id != act_q->index) {
1310                                 PMD_DRV_LOG(ERR,
1311                                             "VNIC already in use\n");
1312                                 rte_flow_error_set(error,
1313                                                    EINVAL,
1314                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1315                                                    act,
1316                                                    "VNIC already in use");
1317                                 rc = -rte_errno;
1318                                 goto ret;
1319                         }
1320                         goto use_vnic;
1321                 }
1322
1323                 rxq = bp->rx_queues[act_q->index];
1324
1325                 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1326                     vnic->fw_vnic_id != INVALID_HW_RING_ID)
1327                         goto use_vnic;
1328
1329                 if (!rxq) {
1330                         PMD_DRV_LOG(ERR,
1331                                     "Queue invalid or used with other VNIC\n");
1332                         rte_flow_error_set(error,
1333                                            EINVAL,
1334                                            RTE_FLOW_ERROR_TYPE_ACTION,
1335                                            act,
1336                                            "Queue invalid queue or in use");
1337                         rc = -rte_errno;
1338                         goto ret;
1339                 }
1340
1341                 rxq->vnic = vnic;
1342                 rxq->rx_started = 1;
1343                 vnic->rx_queue_cnt++;
1344                 vnic->start_grp_id = act_q->index;
1345                 vnic->end_grp_id = act_q->index;
1346                 vnic->func_default = 0; //This is not a default VNIC.
1347
1348                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1349
1350                 rc = bnxt_vnic_prep(bp, vnic, act, error);
1351                 if (rc)
1352                         goto ret;
1353
1354                 PMD_DRV_LOG(DEBUG,
1355                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1356                             act_q->index, vnic, vnic->fw_grp_ids);
1357
1358 use_vnic:
1359                 vnic->ff_pool_idx = vnic_id;
1360                 PMD_DRV_LOG(DEBUG,
1361                             "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1362                 filter->dst_id = vnic->fw_vnic_id;
1363 skip_vnic_alloc:
1364                 /* For ntuple filter, create the L2 filter with default VNIC.
1365                  * The user specified redirect queue will be set while creating
1366                  * the ntuple filter in hardware.
1367                  */
1368                 vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
1369                 if (use_ntuple)
1370                         filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1371                 else
1372                         filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1373                 if (filter1 == NULL) {
1374                         rte_flow_error_set(error,
1375                                            ENOSPC,
1376                                            RTE_FLOW_ERROR_TYPE_ACTION,
1377                                            act,
1378                                            "Filter not available");
1379                         rc = -rte_errno;
1380                         goto ret;
1381                 }
1382
1383                 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1384                             filter, filter1, filter1->l2_ref_cnt);
1385                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1386                 break;
1387         case RTE_FLOW_ACTION_TYPE_DROP:
1388                 vnic0 = &bp->vnic_info[0];
1389                 filter->dst_id = vnic0->fw_vnic_id;
1390                 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
1391                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1392                 if (filter1 == NULL) {
1393                         rte_flow_error_set(error,
1394                                            ENOSPC,
1395                                            RTE_FLOW_ERROR_TYPE_ACTION,
1396                                            act,
1397                                            "Filter not available");
1398                         rc = -rte_errno;
1399                         goto ret;
1400                 }
1401
1402                 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1403                         filter->flags =
1404                                 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1405                 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1406                         filter->flags =
1407                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1408
1409                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1410                 break;
1411         case RTE_FLOW_ACTION_TYPE_COUNT:
1412                 vnic0 = &bp->vnic_info[0];
1413                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1414                 if (filter1 == NULL) {
1415                         rte_flow_error_set(error,
1416                                            ENOSPC,
1417                                            RTE_FLOW_ERROR_TYPE_ACTION,
1418                                            act,
1419                                            "New filter not available");
1420                         rc = -rte_errno;
1421                         goto ret;
1422                 }
1423
1424                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1425                 filter->flow_id = filter1->flow_id;
1426                 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1427                 break;
1428         case RTE_FLOW_ACTION_TYPE_VF:
1429                 act_vf = (const struct rte_flow_action_vf *)act->conf;
1430                 vf = act_vf->id;
1431
1432                 if (filter->tunnel_type ==
1433                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1434                     filter->tunnel_type ==
1435                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1436                         /* If issued on a VF, ensure id is 0 and is trusted */
1437                         if (BNXT_VF(bp)) {
1438                                 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1439                                         rte_flow_error_set(error, EINVAL,
1440                                                 RTE_FLOW_ERROR_TYPE_ACTION,
1441                                                 act,
1442                                                 "Incorrect VF");
1443                                         rc = -rte_errno;
1444                                         goto ret;
1445                                 }
1446                         }
1447
1448                         filter->enables |= filter->tunnel_type;
1449                         filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1450                         goto done;
1451                 }
1452
1453                 if (vf >= bp->pdev->max_vfs) {
1454                         rte_flow_error_set(error,
1455                                            EINVAL,
1456                                            RTE_FLOW_ERROR_TYPE_ACTION,
1457                                            act,
1458                                            "Incorrect VF id!");
1459                         rc = -rte_errno;
1460                         goto ret;
1461                 }
1462
1463                 filter->mirror_vnic_id =
1464                 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1465                 if (dflt_vnic < 0) {
1466                         /* This simply indicates there's no driver loaded.
1467                          * This is not an error.
1468                          */
1469                         rte_flow_error_set(error,
1470                                            EINVAL,
1471                                            RTE_FLOW_ERROR_TYPE_ACTION,
1472                                            act,
1473                                            "Unable to get default VNIC for VF");
1474                         rc = -rte_errno;
1475                         goto ret;
1476                 }
1477
1478                 filter->mirror_vnic_id = dflt_vnic;
1479                 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1480
1481                 vnic0 = &bp->vnic_info[0];
1482                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1483                 if (filter1 == NULL) {
1484                         rte_flow_error_set(error,
1485                                            ENOSPC,
1486                                            RTE_FLOW_ERROR_TYPE_ACTION,
1487                                            act,
1488                                            "New filter not available");
1489                         rc = -rte_errno;
1490                         goto ret;
1491                 }
1492
1493                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1494                 filter->flow_id = filter1->flow_id;
1495                 break;
1496         case RTE_FLOW_ACTION_TYPE_RSS:
1497                 rc = bnxt_validate_rss_action(actions);
1498                 if (rc != 0) {
1499                         rte_flow_error_set(error,
1500                                            EINVAL,
1501                                            RTE_FLOW_ERROR_TYPE_ACTION,
1502                                            act,
1503                                            "Invalid actions specified with RSS");
1504                         rc = -rte_errno;
1505                         goto ret;
1506                 }
1507
1508                 rss = (const struct rte_flow_action_rss *)act->conf;
1509
1510                 vnic_id = bnxt_get_vnic(bp, attr->group);
1511
1512                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1513                 vnic = &bp->vnic_info[vnic_id];
1514
1515                 /*
1516                  * For non NS3 cases, rte_flow_items will not be considered
1517                  * for RSS updates.
1518                  */
1519                 if (filter->filter_type == HWRM_CFA_CONFIG) {
1520                         /* RSS config update requested */
1521                         rc = bnxt_vnic_rss_cfg_update(bp, vnic, act, error);
1522                         if (rc != 0)
1523                                 return -rte_errno;
1524
1525                         filter->dst_id = vnic->fw_vnic_id;
1526                         break;
1527                 }
1528
1529                 /* Check if requested RSS config matches RSS config of VNIC
1530                  * only if it is not a fresh VNIC configuration.
1531                  * Otherwise the existing VNIC configuration can be used.
1532                  */
1533                 if (vnic->rx_queue_cnt) {
1534                         rc = match_vnic_rss_cfg(bp, vnic, rss);
1535                         if (rc) {
1536                                 PMD_DRV_LOG(ERR,
1537                                             "VNIC and RSS config mismatch\n");
1538                                 rte_flow_error_set(error,
1539                                                    EINVAL,
1540                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1541                                                    act,
1542                                                    "VNIC and RSS cfg mismatch");
1543                                 rc = -rte_errno;
1544                                 goto ret;
1545                         }
1546                         goto vnic_found;
1547                 }
1548
1549                 for (i = 0; i < rss->queue_num; i++) {
1550                         PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1551                                     rss->queue[i]);
1552
1553                         if (!rss->queue[i] ||
1554                             rss->queue[i] >= bp->rx_nr_rings ||
1555                             !bp->rx_queues[rss->queue[i]]) {
1556                                 rte_flow_error_set(error,
1557                                                    EINVAL,
1558                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1559                                                    act,
1560                                                    "Invalid queue ID for RSS");
1561                                 rc = -rte_errno;
1562                                 goto ret;
1563                         }
1564                         rxq = bp->rx_queues[rss->queue[i]];
1565
1566                         if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1567                             INVALID_HW_RING_ID) {
1568                                 PMD_DRV_LOG(ERR,
1569                                             "queue active with other VNIC\n");
1570                                 rte_flow_error_set(error,
1571                                                    EINVAL,
1572                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1573                                                    act,
1574                                                    "Invalid queue ID for RSS");
1575                                 rc = -rte_errno;
1576                                 goto ret;
1577                         }
1578
1579                         rxq->vnic = vnic;
1580                         rxq->rx_started = 1;
1581                         vnic->rx_queue_cnt++;
1582                 }
1583
1584                 vnic->start_grp_id = rss->queue[0];
1585                 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1586                 vnic->func_default = 0; //This is not a default VNIC.
1587
1588                 rc = bnxt_vnic_prep(bp, vnic, act, error);
1589                 if (rc)
1590                         goto ret;
1591
1592                 PMD_DRV_LOG(DEBUG,
1593                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1594                             vnic_id, vnic, vnic->fw_grp_ids);
1595
1596                 vnic->ff_pool_idx = vnic_id;
1597                 PMD_DRV_LOG(DEBUG,
1598                             "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1599
1600                 /* This can be done only after vnic_grp_alloc is done. */
1601                 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1602                         vnic->fw_grp_ids[i] =
1603                                 bp->grp_info[rss->queue[i]].fw_grp_id;
1604                         /* Make sure vnic0 does not use these rings. */
1605                         bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1606                                 INVALID_HW_RING_ID;
1607                 }
1608
1609                 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1610                         for (i = 0; i < vnic->rx_queue_cnt; i++)
1611                                 vnic->rss_table[rss_idx++] =
1612                                         vnic->fw_grp_ids[i];
1613                 }
1614
1615                 /* Configure RSS only if the queue count is > 1 */
1616                 if (vnic->rx_queue_cnt > 1) {
1617                         vnic->hash_type =
1618                                 bnxt_rte_to_hwrm_hash_types(rss->types);
1619                         vnic->hash_mode =
1620                         bnxt_rte_to_hwrm_hash_level(bp, rss->types, rss->level);
1621
1622                         if (!rss->key_len) {
1623                                 /* If hash key has not been specified,
1624                                  * use random hash key.
1625                                  */
1626                                 bnxt_prandom_bytes(vnic->rss_hash_key,
1627                                                    HW_HASH_KEY_SIZE);
1628                         } else {
1629                                 if (rss->key_len > HW_HASH_KEY_SIZE)
1630                                         memcpy(vnic->rss_hash_key,
1631                                                rss->key,
1632                                                HW_HASH_KEY_SIZE);
1633                                 else
1634                                         memcpy(vnic->rss_hash_key,
1635                                                rss->key,
1636                                                rss->key_len);
1637                         }
1638                         bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1639                 } else {
1640                         PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1641                 }
1642
1643 vnic_found:
1644                 filter->dst_id = vnic->fw_vnic_id;
1645                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1646                 if (filter1 == NULL) {
1647                         rte_flow_error_set(error,
1648                                            ENOSPC,
1649                                            RTE_FLOW_ERROR_TYPE_ACTION,
1650                                            act,
1651                                            "New filter not available");
1652                         rc = -rte_errno;
1653                         goto ret;
1654                 }
1655
1656                 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1657                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1658                 break;
1659         case RTE_FLOW_ACTION_TYPE_MARK:
1660                 if (bp->mark_table == NULL) {
1661                         rte_flow_error_set(error,
1662                                            ENOMEM,
1663                                            RTE_FLOW_ERROR_TYPE_ACTION,
1664                                            act,
1665                                            "Mark table not allocated.");
1666                         rc = -rte_errno;
1667                         goto ret;
1668                 }
1669
1670                 if (bp->flags & BNXT_FLAG_RX_VECTOR_PKT_MODE) {
1671                         PMD_DRV_LOG(DEBUG,
1672                                     "Disabling vector processing for mark\n");
1673                         bp->eth_dev->rx_pkt_burst = bnxt_recv_pkts;
1674                         bp->flags &= ~BNXT_FLAG_RX_VECTOR_PKT_MODE;
1675                 }
1676
1677                 filter->valid_flags |= BNXT_FLOW_MARK_FLAG;
1678                 filter->mark = ((const struct rte_flow_action_mark *)
1679                                 act->conf)->id;
1680                 PMD_DRV_LOG(DEBUG, "Mark the flow %d\n", filter->mark);
1681                 break;
1682         default:
1683                 rte_flow_error_set(error,
1684                                    EINVAL,
1685                                    RTE_FLOW_ERROR_TYPE_ACTION,
1686                                    act,
1687                                    "Invalid action.");
1688                 rc = -rte_errno;
1689                 goto ret;
1690         }
1691
1692 done:
1693         act = bnxt_flow_non_void_action(++act);
1694         while (act->type != RTE_FLOW_ACTION_TYPE_END)
1695                 goto start;
1696
1697         return rc;
1698 ret:
1699
1700         if (filter1) {
1701                 bnxt_hwrm_clear_l2_filter(bp, filter1);
1702                 bnxt_free_filter(bp, filter1);
1703         }
1704
1705         if (rte_errno)  {
1706                 if (vnic && STAILQ_EMPTY(&vnic->filter))
1707                         vnic->rx_queue_cnt = 0;
1708
1709                 if (rxq && !vnic->rx_queue_cnt)
1710                         rxq->vnic = &bp->vnic_info[0];
1711         }
1712         return -rte_errno;
1713 }
1714
1715 static
1716 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp,
1717                                           struct bnxt_filter_info *filter)
1718 {
1719         struct bnxt_vnic_info *vnic = NULL;
1720         unsigned int i;
1721
1722         for (i = 0; i < bp->max_vnics; i++) {
1723                 vnic = &bp->vnic_info[i];
1724                 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1725                     filter->dst_id == vnic->fw_vnic_id) {
1726                         PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n",
1727                                     vnic->ff_pool_idx);
1728                         return vnic;
1729                 }
1730         }
1731         return NULL;
1732 }
1733
1734 static int
1735 bnxt_flow_validate(struct rte_eth_dev *dev,
1736                    const struct rte_flow_attr *attr,
1737                    const struct rte_flow_item pattern[],
1738                    const struct rte_flow_action actions[],
1739                    struct rte_flow_error *error)
1740 {
1741         struct bnxt *bp = dev->data->dev_private;
1742         struct bnxt_vnic_info *vnic = NULL;
1743         struct bnxt_filter_info *filter;
1744         int ret = 0;
1745
1746         bnxt_acquire_flow_lock(bp);
1747         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1748         if (ret != 0) {
1749                 bnxt_release_flow_lock(bp);
1750                 return ret;
1751         }
1752
1753         filter = bnxt_get_unused_filter(bp);
1754         if (filter == NULL) {
1755                 rte_flow_error_set(error, ENOSPC,
1756                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1757                                    "Not enough resources for a new flow");
1758                 bnxt_release_flow_lock(bp);
1759                 return -ENOSPC;
1760         }
1761
1762         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1763                                            error, filter);
1764         if (ret)
1765                 goto exit;
1766
1767         vnic = find_matching_vnic(bp, filter);
1768         if (vnic) {
1769                 if (STAILQ_EMPTY(&vnic->filter)) {
1770                         bnxt_vnic_cleanup(bp, vnic);
1771                         bp->nr_vnics--;
1772                         PMD_DRV_LOG(DEBUG, "Free VNIC\n");
1773                 }
1774         }
1775
1776         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1777                 bnxt_hwrm_clear_em_filter(bp, filter);
1778         else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1779                 bnxt_hwrm_clear_ntuple_filter(bp, filter);
1780         else
1781                 bnxt_hwrm_clear_l2_filter(bp, filter);
1782
1783 exit:
1784         /* No need to hold on to this filter if we are just validating flow */
1785         bnxt_free_filter(bp, filter);
1786         bnxt_release_flow_lock(bp);
1787
1788         return ret;
1789 }
1790
1791 static void
1792 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1793                    struct bnxt_filter_info *new_filter)
1794 {
1795         /* Clear the new L2 filter that was created in the previous step in
1796          * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1797          * filter which points to the new destination queue and so we clear
1798          * the previous L2 filter. For ntuple filters, we are going to reuse
1799          * the old L2 filter and create new NTUPLE filter with this new
1800          * destination queue subsequently during bnxt_flow_create. So we
1801          * decrement the ref cnt of the L2 filter that would've been bumped
1802          * up previously in bnxt_validate_and_parse_flow as the old n-tuple
1803          * filter that was referencing it will be deleted now.
1804          */
1805         bnxt_hwrm_clear_l2_filter(bp, old_filter);
1806         if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1807                 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1808         } else {
1809                 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1810                         bnxt_hwrm_clear_em_filter(bp, old_filter);
1811                 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1812                         bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1813         }
1814 }
1815
1816 static int
1817 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1818 {
1819         struct bnxt_filter_info *mf;
1820         struct rte_flow *flow;
1821         int i;
1822
1823         for (i = bp->max_vnics - 1; i >= 0; i--) {
1824                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1825
1826                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1827                         continue;
1828
1829                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1830                         mf = flow->filter;
1831
1832                         if (mf->filter_type == nf->filter_type &&
1833                             mf->flags == nf->flags &&
1834                             mf->src_port == nf->src_port &&
1835                             mf->src_port_mask == nf->src_port_mask &&
1836                             mf->dst_port == nf->dst_port &&
1837                             mf->dst_port_mask == nf->dst_port_mask &&
1838                             mf->ip_protocol == nf->ip_protocol &&
1839                             mf->ip_addr_type == nf->ip_addr_type &&
1840                             mf->ethertype == nf->ethertype &&
1841                             mf->vni == nf->vni &&
1842                             mf->tunnel_type == nf->tunnel_type &&
1843                             mf->l2_ovlan == nf->l2_ovlan &&
1844                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1845                             mf->l2_ivlan == nf->l2_ivlan &&
1846                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1847                             !memcmp(mf->l2_addr, nf->l2_addr,
1848                                     RTE_ETHER_ADDR_LEN) &&
1849                             !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1850                                     RTE_ETHER_ADDR_LEN) &&
1851                             !memcmp(mf->src_macaddr, nf->src_macaddr,
1852                                     RTE_ETHER_ADDR_LEN) &&
1853                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1854                                     RTE_ETHER_ADDR_LEN) &&
1855                             !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1856                                     sizeof(nf->src_ipaddr)) &&
1857                             !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1858                                     sizeof(nf->src_ipaddr_mask)) &&
1859                             !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1860                                     sizeof(nf->dst_ipaddr)) &&
1861                             !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1862                                     sizeof(nf->dst_ipaddr_mask))) {
1863                                 if (mf->dst_id == nf->dst_id)
1864                                         return -EEXIST;
1865                                 /* Free the old filter, update flow
1866                                  * with new filter
1867                                  */
1868                                 bnxt_update_filter(bp, mf, nf);
1869                                 STAILQ_REMOVE(&vnic->filter, mf,
1870                                               bnxt_filter_info, next);
1871                                 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1872                                 bnxt_free_filter(bp, mf);
1873                                 flow->filter = nf;
1874                                 return -EXDEV;
1875                         }
1876                 }
1877         }
1878         return 0;
1879 }
1880
1881 static void
1882 bnxt_setup_flow_counter(struct bnxt *bp)
1883 {
1884         if (bp->fw_cap & BNXT_FW_CAP_ADV_FLOW_COUNTERS &&
1885             !(bp->flags & BNXT_FLAG_FC_THREAD) && BNXT_FLOW_XSTATS_EN(bp)) {
1886                 rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1887                                   bnxt_flow_cnt_alarm_cb,
1888                                   (void *)bp);
1889                 bp->flags |= BNXT_FLAG_FC_THREAD;
1890         }
1891 }
1892
1893 void bnxt_flow_cnt_alarm_cb(void *arg)
1894 {
1895         int rc = 0;
1896         struct bnxt *bp = arg;
1897
1898         if (!bp->flow_stat->rx_fc_out_tbl.va) {
1899                 PMD_DRV_LOG(ERR, "bp->flow_stat->rx_fc_out_tbl.va is NULL?\n");
1900                 bnxt_cancel_fc_thread(bp);
1901                 return;
1902         }
1903
1904         if (!bp->flow_stat->flow_count) {
1905                 bnxt_cancel_fc_thread(bp);
1906                 return;
1907         }
1908
1909         if (!bp->eth_dev->data->dev_started) {
1910                 bnxt_cancel_fc_thread(bp);
1911                 return;
1912         }
1913
1914         rc = bnxt_flow_stats_req(bp);
1915         if (rc) {
1916                 PMD_DRV_LOG(ERR, "Flow stat alarm not rescheduled.\n");
1917                 return;
1918         }
1919
1920         rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1921                           bnxt_flow_cnt_alarm_cb,
1922                           (void *)bp);
1923 }
1924
1925
1926 static struct rte_flow *
1927 bnxt_flow_create(struct rte_eth_dev *dev,
1928                  const struct rte_flow_attr *attr,
1929                  const struct rte_flow_item pattern[],
1930                  const struct rte_flow_action actions[],
1931                  struct rte_flow_error *error)
1932 {
1933         struct bnxt *bp = dev->data->dev_private;
1934         struct bnxt_vnic_info *vnic = NULL;
1935         struct bnxt_filter_info *filter;
1936         bool update_flow = false;
1937         struct rte_flow *flow;
1938         int ret = 0;
1939         uint32_t tun_type, flow_id;
1940
1941         if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1942                 rte_flow_error_set(error, EINVAL,
1943                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1944                                    "Failed to create flow, Not a Trusted VF!");
1945                 return NULL;
1946         }
1947
1948         if (!dev->data->dev_started) {
1949                 rte_flow_error_set(error,
1950                                    EINVAL,
1951                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1952                                    NULL,
1953                                    "Device must be started");
1954                 return NULL;
1955         }
1956
1957         flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1958         if (!flow) {
1959                 rte_flow_error_set(error, ENOMEM,
1960                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1961                                    "Failed to allocate memory");
1962                 return flow;
1963         }
1964
1965         bnxt_acquire_flow_lock(bp);
1966         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1967         if (ret != 0) {
1968                 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1969                 goto free_flow;
1970         }
1971
1972         filter = bnxt_get_unused_filter(bp);
1973         if (filter == NULL) {
1974                 rte_flow_error_set(error, ENOSPC,
1975                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1976                                    "Not enough resources for a new flow");
1977                 goto free_flow;
1978         }
1979
1980         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1981                                            error, filter);
1982         if (ret != 0)
1983                 goto free_filter;
1984
1985         ret = bnxt_match_filter(bp, filter);
1986         if (ret == -EEXIST) {
1987                 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1988                 /* Clear the filter that was created as part of
1989                  * validate_and_parse_flow() above
1990                  */
1991                 bnxt_hwrm_clear_l2_filter(bp, filter);
1992                 goto free_filter;
1993         } else if (ret == -EXDEV) {
1994                 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1995                 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1996                 update_flow = true;
1997         }
1998
1999         /* If tunnel redirection to a VF/PF is specified then only tunnel_type
2000          * is set and enable is set to the tunnel type. Issue hwrm cmd directly
2001          * in such a case.
2002          */
2003         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
2004             filter->enables == filter->tunnel_type) {
2005                 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
2006                 if (ret) {
2007                         rte_flow_error_set(error, -ret,
2008                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2009                                            "Unable to query tunnel to VF");
2010                         goto free_filter;
2011                 }
2012                 if (tun_type == (1U << filter->tunnel_type)) {
2013                         ret =
2014                         bnxt_hwrm_tunnel_redirect_free(bp,
2015                                                        filter->tunnel_type);
2016                         if (ret) {
2017                                 PMD_DRV_LOG(ERR,
2018                                             "Unable to free existing tunnel\n");
2019                                 rte_flow_error_set(error, -ret,
2020                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
2021                                                    NULL,
2022                                                    "Unable to free preexisting "
2023                                                    "tunnel on VF");
2024                                 goto free_filter;
2025                         }
2026                 }
2027                 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
2028                 if (ret) {
2029                         rte_flow_error_set(error, -ret,
2030                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2031                                            "Unable to redirect tunnel to VF");
2032                         goto free_filter;
2033                 }
2034                 vnic = &bp->vnic_info[0];
2035                 goto done;
2036         }
2037
2038         if (filter->filter_type == HWRM_CFA_EM_FILTER) {
2039                 filter->enables |=
2040                         HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
2041                 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
2042                 if (ret != 0) {
2043                         rte_flow_error_set(error, -ret,
2044                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2045                                            "Failed to create EM filter");
2046                         goto free_filter;
2047                 }
2048         }
2049
2050         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
2051                 filter->enables |=
2052                         HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
2053                 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
2054                 if (ret != 0) {
2055                         rte_flow_error_set(error, -ret,
2056                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2057                                            "Failed to create ntuple filter");
2058                         goto free_filter;
2059                 }
2060         }
2061
2062         if (BNXT_RFS_NEEDS_VNIC(bp))
2063                 vnic = find_matching_vnic(bp, filter);
2064         else
2065                 vnic = BNXT_GET_DEFAULT_VNIC(bp);
2066 done:
2067         if (!ret || update_flow) {
2068                 flow->filter = filter;
2069                 flow->vnic = vnic;
2070                 if (update_flow) {
2071                         ret = -EXDEV;
2072                         goto free_flow;
2073                 }
2074
2075                 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
2076                         PMD_DRV_LOG(DEBUG,
2077                                     "Mark action: mark id 0x%x, flow id 0x%x\n",
2078                                     filter->mark, filter->flow_id);
2079
2080                         /* TCAM and EM should be 16-bit only.
2081                          * Other modes not supported.
2082                          */
2083                         flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
2084                         if (bp->mark_table[flow_id].valid) {
2085                                 rte_flow_error_set(error, EEXIST,
2086                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
2087                                                    NULL,
2088                                                    "Flow with mark id exists");
2089                                 bnxt_clear_one_vnic_filter(bp, filter);
2090                                 goto free_filter;
2091                         }
2092                         bp->mark_table[flow_id].valid = true;
2093                         bp->mark_table[flow_id].mark_id = filter->mark;
2094                 }
2095
2096                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
2097                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
2098
2099                 if (BNXT_FLOW_XSTATS_EN(bp))
2100                         bp->flow_stat->flow_count++;
2101                 bnxt_release_flow_lock(bp);
2102                 bnxt_setup_flow_counter(bp);
2103                 PMD_DRV_LOG(DEBUG, "Successfully created flow.\n");
2104                 return flow;
2105         }
2106
2107 free_filter:
2108         bnxt_free_filter(bp, filter);
2109 free_flow:
2110         if (ret == -EEXIST)
2111                 rte_flow_error_set(error, ret,
2112                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2113                                    "Matching Flow exists.");
2114         else if (ret == -EXDEV)
2115                 rte_flow_error_set(error, 0,
2116                                    RTE_FLOW_ERROR_TYPE_NONE, NULL,
2117                                    "Flow with pattern exists, updating destination queue");
2118         else if (!rte_errno)
2119                 rte_flow_error_set(error, -ret,
2120                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2121                                    "Failed to create flow.");
2122         rte_free(flow);
2123         flow = NULL;
2124         bnxt_release_flow_lock(bp);
2125         return flow;
2126 }
2127
2128 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
2129                                                struct bnxt_filter_info *filter,
2130                                                struct rte_flow_error *error)
2131 {
2132         uint16_t tun_dst_fid;
2133         uint32_t tun_type;
2134         int ret = 0;
2135
2136         ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
2137         if (ret) {
2138                 rte_flow_error_set(error, -ret,
2139                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2140                                    "Unable to query tunnel to VF");
2141                 return ret;
2142         }
2143         if (tun_type == (1U << filter->tunnel_type)) {
2144                 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
2145                                                      &tun_dst_fid);
2146                 if (ret) {
2147                         rte_flow_error_set(error, -ret,
2148                                            RTE_FLOW_ERROR_TYPE_HANDLE,
2149                                            NULL,
2150                                            "tunnel_redirect info cmd fail");
2151                         return ret;
2152                 }
2153                 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
2154                             tun_dst_fid + bp->first_vf_id, bp->fw_fid);
2155
2156                 /* Tunnel doesn't belong to this VF, so don't send HWRM
2157                  * cmd, just delete the flow from driver
2158                  */
2159                 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id)) {
2160                         PMD_DRV_LOG(ERR,
2161                                     "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
2162                 } else {
2163                         ret = bnxt_hwrm_tunnel_redirect_free(bp,
2164                                                         filter->tunnel_type);
2165                         if (ret) {
2166                                 rte_flow_error_set(error, -ret,
2167                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
2168                                                    NULL,
2169                                                    "Unable to free tunnel redirection");
2170                                 return ret;
2171                         }
2172                 }
2173         }
2174         return ret;
2175 }
2176
2177 static int
2178 _bnxt_flow_destroy(struct bnxt *bp,
2179                    struct rte_flow *flow,
2180                     struct rte_flow_error *error)
2181 {
2182         struct bnxt_filter_info *filter;
2183         struct bnxt_vnic_info *vnic;
2184         int ret = 0;
2185         uint32_t flow_id;
2186
2187         filter = flow->filter;
2188         vnic = flow->vnic;
2189
2190         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
2191             filter->enables == filter->tunnel_type) {
2192                 ret = bnxt_handle_tunnel_redirect_destroy(bp, filter, error);
2193                 if (!ret)
2194                         goto done;
2195                 else
2196                         return ret;
2197         }
2198
2199         /* For config type, there is no filter in HW. Finish cleanup here */
2200         if (filter->filter_type == HWRM_CFA_CONFIG)
2201                 goto done;
2202
2203         ret = bnxt_match_filter(bp, filter);
2204         if (ret == 0)
2205                 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
2206
2207         if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
2208                 flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
2209                 memset(&bp->mark_table[flow_id], 0,
2210                        sizeof(bp->mark_table[flow_id]));
2211                 filter->flow_id = 0;
2212         }
2213
2214         ret = bnxt_clear_one_vnic_filter(bp, filter);
2215
2216 done:
2217         if (!ret) {
2218                 /* If it is a L2 drop filter, when the filter is created,
2219                  * the FW updates the BC/MC records.
2220                  * Once this filter is removed, issue the set_rx_mask command
2221                  * to reset the BC/MC records in the HW to the settings
2222                  * before the drop counter is created.
2223                  */
2224                 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
2225                         bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
2226
2227                 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
2228                 bnxt_free_filter(bp, filter);
2229                 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
2230                 rte_free(flow);
2231                 if (BNXT_FLOW_XSTATS_EN(bp))
2232                         bp->flow_stat->flow_count--;
2233
2234                 /* If this was the last flow associated with this vnic,
2235                  * switch the queue back to RSS pool.
2236                  */
2237                 if (vnic && !vnic->func_default &&
2238                     STAILQ_EMPTY(&vnic->flow_list)) {
2239                         bnxt_vnic_cleanup(bp, vnic);
2240                         bp->nr_vnics--;
2241                 }
2242         } else {
2243                 rte_flow_error_set(error, -ret,
2244                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2245                                    "Failed to destroy flow.");
2246         }
2247
2248         return ret;
2249 }
2250
2251 static int
2252 bnxt_flow_destroy(struct rte_eth_dev *dev,
2253                   struct rte_flow *flow,
2254                   struct rte_flow_error *error)
2255 {
2256         struct bnxt *bp = dev->data->dev_private;
2257         int ret = 0;
2258
2259         bnxt_acquire_flow_lock(bp);
2260         if (!flow) {
2261                 rte_flow_error_set(error, EINVAL,
2262                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2263                                    "Invalid flow: failed to destroy flow.");
2264                 bnxt_release_flow_lock(bp);
2265                 return -EINVAL;
2266         }
2267
2268         if (!flow->filter) {
2269                 rte_flow_error_set(error, EINVAL,
2270                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2271                                    "Invalid flow: failed to destroy flow.");
2272                 bnxt_release_flow_lock(bp);
2273                 return -EINVAL;
2274         }
2275         ret = _bnxt_flow_destroy(bp, flow, error);
2276         bnxt_release_flow_lock(bp);
2277
2278         return ret;
2279 }
2280
2281 void bnxt_cancel_fc_thread(struct bnxt *bp)
2282 {
2283         bp->flags &= ~BNXT_FLAG_FC_THREAD;
2284         rte_eal_alarm_cancel(bnxt_flow_cnt_alarm_cb, (void *)bp);
2285 }
2286
2287 static int
2288 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
2289 {
2290         struct bnxt *bp = dev->data->dev_private;
2291         struct bnxt_vnic_info *vnic;
2292         struct rte_flow *flow;
2293         unsigned int i;
2294         int ret = 0;
2295
2296         bnxt_acquire_flow_lock(bp);
2297         for (i = 0; i < bp->max_vnics; i++) {
2298                 vnic = &bp->vnic_info[i];
2299                 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
2300                         continue;
2301
2302                 while (!STAILQ_EMPTY(&vnic->flow_list)) {
2303                         flow = STAILQ_FIRST(&vnic->flow_list);
2304
2305                         if (!flow->filter)
2306                                 continue;
2307
2308                         ret = _bnxt_flow_destroy(bp, flow, error);
2309                         if (ret)
2310                                 break;
2311                 }
2312         }
2313
2314         bnxt_cancel_fc_thread(bp);
2315         bnxt_release_flow_lock(bp);
2316
2317         return ret;
2318 }
2319
2320 const struct rte_flow_ops bnxt_flow_ops = {
2321         .validate = bnxt_flow_validate,
2322         .create = bnxt_flow_create,
2323         .destroy = bnxt_flow_destroy,
2324         .flush = bnxt_flow_flush,
2325 };