drivers/net/bnxt/bnxt_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <sys/queue.h>
   7
   8 #include <rte_log.h>
   9 #include <rte_malloc.h>
  10 #include <rte_flow.h>
  11 #include <rte_flow_driver.h>
  12 #include <rte_tailq.h>
  13
  14 #include "bnxt.h"
  15 #include "bnxt_filter.h"
  16 #include "bnxt_hwrm.h"
  17 #include "bnxt_ring.h"
  18 #include "bnxt_rxq.h"
  19 #include "bnxt_vnic.h"
  20 #include "bnxt_util.h"
  21 #include "hsi_struct_def_dpdk.h"
  22
  23 static int
  24 bnxt_flow_args_validate(const struct rte_flow_attr *attr,
  25                         const struct rte_flow_item pattern[],
  26                         const struct rte_flow_action actions[],
  27                         struct rte_flow_error *error)
  28 {
  29         if (!pattern) {
  30                 rte_flow_error_set(error,
  31                                    EINVAL,
  32                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM,
  33                                    NULL,
  34                                    "NULL pattern.");
  35                 return -rte_errno;
  36         }
  37
  38         if (!actions) {
  39                 rte_flow_error_set(error,
  40                                    EINVAL,
  41                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
  42                                    NULL,
  43                                    "NULL action.");
  44                 return -rte_errno;
  45         }
  46
  47         if (!attr) {
  48                 rte_flow_error_set(error,
  49                                    EINVAL,
  50                                    RTE_FLOW_ERROR_TYPE_ATTR,
  51                                    NULL,
  52                                    "NULL attribute.");
  53                 return -rte_errno;
  54         }
  55
  56         return 0;
  57 }
  58
  59 static const struct rte_flow_item *
  60 bnxt_flow_non_void_item(const struct rte_flow_item *cur)
  61 {
  62         while (1) {
  63                 if (cur->type != RTE_FLOW_ITEM_TYPE_VOID)
  64                         return cur;
  65                 cur++;
  66         }
  67 }
  68
  69 static const struct rte_flow_action *
  70 bnxt_flow_non_void_action(const struct rte_flow_action *cur)
  71 {
  72         while (1) {
  73                 if (cur->type != RTE_FLOW_ACTION_TYPE_VOID)
  74                         return cur;
  75                 cur++;
  76         }
  77 }
  78
  79 static int
  80 bnxt_filter_type_check(const struct rte_flow_item pattern[],
  81                        struct rte_flow_error *error __rte_unused)
  82 {
  83         const struct rte_flow_item *item =
  84                 bnxt_flow_non_void_item(pattern);
  85         int use_ntuple = 1;
  86         bool has_vlan = 0;
  87
  88         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
  89                 switch (item->type) {
  90                 case RTE_FLOW_ITEM_TYPE_ANY:
  91                 case RTE_FLOW_ITEM_TYPE_ETH:
  92                         use_ntuple = 0;
  93                         break;
  94                 case RTE_FLOW_ITEM_TYPE_VLAN:
  95                         use_ntuple = 0;
  96                         has_vlan = 1;
  97                         break;
  98                 case RTE_FLOW_ITEM_TYPE_IPV4:
  99                 case RTE_FLOW_ITEM_TYPE_IPV6:
 100                 case RTE_FLOW_ITEM_TYPE_TCP:
 101                 case RTE_FLOW_ITEM_TYPE_UDP:
 102                         /* FALLTHROUGH */
 103                         /* need ntuple match, reset exact match */
 104                         use_ntuple |= 1;
 105                         break;
 106                 default:
 107                         PMD_DRV_LOG(DEBUG, "Unknown Flow type\n");
 108                         use_ntuple |= 0;
 109                 }
 110                 item++;
 111         }
 112
 113         if (has_vlan && use_ntuple) {
 114                 PMD_DRV_LOG(ERR,
 115                             "VLAN flow cannot use NTUPLE filter\n");
 116                 rte_flow_error_set(error, EINVAL,
 117                                    RTE_FLOW_ERROR_TYPE_ITEM,
 118                                    item,
 119                                    "Cannot use VLAN with NTUPLE");
 120                 return -rte_errno;
 121         }
 122
 123         return use_ntuple;
 124 }
 125
 126 static int
 127 bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 128                                   const struct rte_flow_attr *attr,
 129                                   const struct rte_flow_item pattern[],
 130                                   struct rte_flow_error *error,
 131                                   struct bnxt_filter_info *filter)
 132 {
 133         const struct rte_flow_item *item = bnxt_flow_non_void_item(pattern);
 134         const struct rte_flow_item_vlan *vlan_spec, *vlan_mask;
 135         const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
 136         const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
 137         const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
 138         const struct rte_flow_item_udp *udp_spec, *udp_mask;
 139         const struct rte_flow_item_eth *eth_spec, *eth_mask;
 140         const struct rte_flow_item_nvgre *nvgre_spec;
 141         const struct rte_flow_item_nvgre *nvgre_mask;
 142         const struct rte_flow_item_gre *gre_spec;
 143         const struct rte_flow_item_gre *gre_mask;
 144         const struct rte_flow_item_vxlan *vxlan_spec;
 145         const struct rte_flow_item_vxlan *vxlan_mask;
 146         uint8_t vni_mask[] = {0xFF, 0xFF, 0xFF};
 147         uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF};
 148         const struct rte_flow_item_vf *vf_spec;
 149         uint32_t tenant_id_be = 0, valid_flags = 0;
 150         bool vni_masked = 0;
 151         bool tni_masked = 0;
 152         uint32_t en_ethertype;
 153         uint8_t inner = 0;
 154         uint32_t vf = 0;
 155         uint32_t en = 0;
 156         int use_ntuple;
 157         int dflt_vnic;
 158
 159         use_ntuple = bnxt_filter_type_check(pattern, error);
 160         if (use_ntuple < 0)
 161                 return use_ntuple;
 162         PMD_DRV_LOG(DEBUG, "Use NTUPLE %d\n", use_ntuple);
 163
 164         filter->filter_type = use_ntuple ?
 165                 HWRM_CFA_NTUPLE_FILTER : HWRM_CFA_EM_FILTER;
 166         en_ethertype = use_ntuple ?
 167                 NTUPLE_FLTR_ALLOC_INPUT_EN_ETHERTYPE :
 168                 EM_FLOW_ALLOC_INPUT_EN_ETHERTYPE;
 169
 170         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
 171                 if (item->last) {
 172                         /* last or range is NOT supported as match criteria */
 173                         rte_flow_error_set(error, EINVAL,
 174                                            RTE_FLOW_ERROR_TYPE_ITEM,
 175                                            item,
 176                                            "No support for range");
 177                         return -rte_errno;
 178                 }
 179
 180                 switch (item->type) {
 181                 case RTE_FLOW_ITEM_TYPE_ANY:
 182                         inner =
 183                         ((const struct rte_flow_item_any *)item->spec)->num > 3;
 184                         if (inner)
 185                                 PMD_DRV_LOG(DEBUG, "Parse inner header\n");
 186                         break;
 187                 case RTE_FLOW_ITEM_TYPE_ETH:
 188                         if (!item->spec || !item->mask)
 189                                 break;
 190
 191                         eth_spec = item->spec;
 192                         eth_mask = item->mask;
 193
 194                         /* Source MAC address mask cannot be partially set.
 195                          * Should be All 0's or all 1's.
 196                          * Destination MAC address mask must not be partially
 197                          * set. Should be all 1's or all 0's.
 198                          */
 199                         if ((!rte_is_zero_ether_addr(&eth_mask->src) &&
 200                              !rte_is_broadcast_ether_addr(&eth_mask->src)) ||
 201                             (!rte_is_zero_ether_addr(&eth_mask->dst) &&
 202                              !rte_is_broadcast_ether_addr(&eth_mask->dst))) {
 203                                 rte_flow_error_set(error,
 204                                                    EINVAL,
 205                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 206                                                    item,
 207                                                    "MAC_addr mask not valid");
 208                                 return -rte_errno;
 209                         }
 210
 211                         /* Mask is not allowed. Only exact matches are */
 212                         if (eth_mask->type &&
 213                             eth_mask->type != RTE_BE16(0xffff)) {
 214                                 rte_flow_error_set(error, EINVAL,
 215                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 216                                                    item,
 217                                                    "ethertype mask not valid");
 218                                 return -rte_errno;
 219                         }
 220
 221                         if (rte_is_broadcast_ether_addr(&eth_mask->dst)) {
 222                                 rte_memcpy(filter->dst_macaddr,
 223                                            &eth_spec->dst, RTE_ETHER_ADDR_LEN);
 224                                 en |= use_ntuple ?
 225                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_MACADDR :
 226                                         EM_FLOW_ALLOC_INPUT_EN_DST_MACADDR;
 227                                 valid_flags |= inner ?
 228                                         BNXT_FLOW_L2_INNER_DST_VALID_FLAG :
 229                                         BNXT_FLOW_L2_DST_VALID_FLAG;
 230                                 filter->priority = attr->priority;
 231                                 PMD_DRV_LOG(DEBUG,
 232                                             "Creating a priority flow\n");
 233                         }
 234
 235                         if (rte_is_broadcast_ether_addr(&eth_mask->src)) {
 236                                 rte_memcpy(filter->src_macaddr,
 237                                            &eth_spec->src, RTE_ETHER_ADDR_LEN);
 238                                 en |= use_ntuple ?
 239                                         NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR :
 240                                         EM_FLOW_ALLOC_INPUT_EN_SRC_MACADDR;
 241                                 valid_flags |= inner ?
 242                                         BNXT_FLOW_L2_INNER_SRC_VALID_FLAG :
 243                                         BNXT_FLOW_L2_SRC_VALID_FLAG;
 244                         } /*
 245                            * else {
 246                            *  PMD_DRV_LOG(ERR, "Handle this condition\n");
 247                            * }
 248                            */
 249                         if (eth_mask->type) {
 250                                 filter->ethertype =
 251                                         rte_be_to_cpu_16(eth_spec->type);
 252                                 en |= en_ethertype;
 253                         }
 254
 255                         break;
 256                 case RTE_FLOW_ITEM_TYPE_VLAN:
 257                         vlan_spec = item->spec;
 258                         vlan_mask = item->mask;
 259                         if (en & en_ethertype) {
 260                                 rte_flow_error_set(error, EINVAL,
 261                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 262                                                    item,
 263                                                    "VLAN TPID matching is not"
 264                                                    " supported");
 265                                 return -rte_errno;
 266                         }
 267                         if (vlan_mask->tci &&
 268                             vlan_mask->tci == RTE_BE16(0x0fff)) {
 269                                 /* Only the VLAN ID can be matched. */
 270                                 filter->l2_ovlan =
 271                                         rte_be_to_cpu_16(vlan_spec->tci &
 272                                                          RTE_BE16(0x0fff));
 273                                 en |= EM_FLOW_ALLOC_INPUT_EN_OVLAN_VID;
 274                         } else {
 275                                 rte_flow_error_set(error,
 276                                                    EINVAL,
 277                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 278                                                    item,
 279                                                    "VLAN mask is invalid");
 280                                 return -rte_errno;
 281                         }
 282                         if (vlan_mask->inner_type &&
 283                             vlan_mask->inner_type != RTE_BE16(0xffff)) {
 284                                 rte_flow_error_set(error, EINVAL,
 285                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 286                                                    item,
 287                                                    "inner ethertype mask not"
 288                                                    " valid");
 289                                 return -rte_errno;
 290                         }
 291                         if (vlan_mask->inner_type) {
 292                                 filter->ethertype =
 293                                         rte_be_to_cpu_16(vlan_spec->inner_type);
 294                                 en |= en_ethertype;
 295                         }
 296
 297                         break;
 298                 case RTE_FLOW_ITEM_TYPE_IPV4:
 299                         /* If mask is not involved, we could use EM filters. */
 300                         ipv4_spec = item->spec;
 301                         ipv4_mask = item->mask;
 302
 303                         if (!item->spec || !item->mask)
 304                                 break;
 305
 306                         /* Only IP DST and SRC fields are maskable. */
 307                         if (ipv4_mask->hdr.version_ihl ||
 308                             ipv4_mask->hdr.type_of_service ||
 309                             ipv4_mask->hdr.total_length ||
 310                             ipv4_mask->hdr.packet_id ||
 311                             ipv4_mask->hdr.fragment_offset ||
 312                             ipv4_mask->hdr.time_to_live ||
 313                             ipv4_mask->hdr.next_proto_id ||
 314                             ipv4_mask->hdr.hdr_checksum) {
 315                                 rte_flow_error_set(error,
 316                                                    EINVAL,
 317                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 318                                                    item,
 319                                                    "Invalid IPv4 mask.");
 320                                 return -rte_errno;
 321                         }
 322
 323                         filter->dst_ipaddr[0] = ipv4_spec->hdr.dst_addr;
 324                         filter->src_ipaddr[0] = ipv4_spec->hdr.src_addr;
 325
 326                         if (use_ntuple)
 327                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 328                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 329                         else
 330                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 331                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 332
 333                         if (ipv4_mask->hdr.src_addr) {
 334                                 filter->src_ipaddr_mask[0] =
 335                                         ipv4_mask->hdr.src_addr;
 336                                 en |= !use_ntuple ? 0 :
 337                                      NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 338                         }
 339
 340                         if (ipv4_mask->hdr.dst_addr) {
 341                                 filter->dst_ipaddr_mask[0] =
 342                                         ipv4_mask->hdr.dst_addr;
 343                                 en |= !use_ntuple ? 0 :
 344                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 345                         }
 346
 347                         filter->ip_addr_type = use_ntuple ?
 348                          HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_IP_ADDR_TYPE_IPV4 :
 349                          HWRM_CFA_EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV4;
 350
 351                         if (ipv4_spec->hdr.next_proto_id) {
 352                                 filter->ip_protocol =
 353                                         ipv4_spec->hdr.next_proto_id;
 354                                 if (use_ntuple)
 355                                         en |= NTUPLE_FLTR_ALLOC_IN_EN_IP_PROTO;
 356                                 else
 357                                         en |= EM_FLOW_ALLOC_INPUT_EN_IP_PROTO;
 358                         }
 359                         break;
 360                 case RTE_FLOW_ITEM_TYPE_IPV6:
 361                         ipv6_spec = item->spec;
 362                         ipv6_mask = item->mask;
 363
 364                         if (!item->spec || !item->mask)
 365                                 break;
 366
 367                         /* Only IP DST and SRC fields are maskable. */
 368                         if (ipv6_mask->hdr.vtc_flow ||
 369                             ipv6_mask->hdr.payload_len ||
 370                             ipv6_mask->hdr.proto ||
 371                             ipv6_mask->hdr.hop_limits) {
 372                                 rte_flow_error_set(error,
 373                                                    EINVAL,
 374                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 375                                                    item,
 376                                                    "Invalid IPv6 mask.");
 377                                 return -rte_errno;
 378                         }
 379
 380                         if (use_ntuple)
 381                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 382                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 383                         else
 384                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 385                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 386
 387                         rte_memcpy(filter->src_ipaddr,
 388                                    ipv6_spec->hdr.src_addr, 16);
 389                         rte_memcpy(filter->dst_ipaddr,
 390                                    ipv6_spec->hdr.dst_addr, 16);
 391
 392                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.src_addr,
 393                                                    16)) {
 394                                 rte_memcpy(filter->src_ipaddr_mask,
 395                                            ipv6_mask->hdr.src_addr, 16);
 396                                 en |= !use_ntuple ? 0 :
 397                                     NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 398                         }
 399
 400                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.dst_addr,
 401                                                    16)) {
 402                                 rte_memcpy(filter->dst_ipaddr_mask,
 403                                            ipv6_mask->hdr.dst_addr, 16);
 404                                 en |= !use_ntuple ? 0 :
 405                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 406                         }
 407
 408                         filter->ip_addr_type = use_ntuple ?
 409                                 NTUPLE_FLTR_ALLOC_INPUT_IP_ADDR_TYPE_IPV6 :
 410                                 EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV6;
 411                         break;
 412                 case RTE_FLOW_ITEM_TYPE_TCP:
 413                         tcp_spec = item->spec;
 414                         tcp_mask = item->mask;
 415
 416                         if (!item->spec || !item->mask)
 417                                 break;
 418
 419                         /* Check TCP mask. Only DST & SRC ports are maskable */
 420                         if (tcp_mask->hdr.sent_seq ||
 421                             tcp_mask->hdr.recv_ack ||
 422                             tcp_mask->hdr.data_off ||
 423                             tcp_mask->hdr.tcp_flags ||
 424                             tcp_mask->hdr.rx_win ||
 425                             tcp_mask->hdr.cksum ||
 426                             tcp_mask->hdr.tcp_urp) {
 427                                 rte_flow_error_set(error,
 428                                                    EINVAL,
 429                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 430                                                    item,
 431                                                    "Invalid TCP mask");
 432                                 return -rte_errno;
 433                         }
 434
 435                         filter->src_port = tcp_spec->hdr.src_port;
 436                         filter->dst_port = tcp_spec->hdr.dst_port;
 437
 438                         if (use_ntuple)
 439                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 440                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 441                         else
 442                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 443                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 444
 445                         if (tcp_mask->hdr.dst_port) {
 446                                 filter->dst_port_mask = tcp_mask->hdr.dst_port;
 447                                 en |= !use_ntuple ? 0 :
 448                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 449                         }
 450
 451                         if (tcp_mask->hdr.src_port) {
 452                                 filter->src_port_mask = tcp_mask->hdr.src_port;
 453                                 en |= !use_ntuple ? 0 :
 454                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 455                         }
 456                         break;
 457                 case RTE_FLOW_ITEM_TYPE_UDP:
 458                         udp_spec = item->spec;
 459                         udp_mask = item->mask;
 460
 461                         if (!item->spec || !item->mask)
 462                                 break;
 463
 464                         if (udp_mask->hdr.dgram_len ||
 465                             udp_mask->hdr.dgram_cksum) {
 466                                 rte_flow_error_set(error,
 467                                                    EINVAL,
 468                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 469                                                    item,
 470                                                    "Invalid UDP mask");
 471                                 return -rte_errno;
 472                         }
 473
 474                         filter->src_port = udp_spec->hdr.src_port;
 475                         filter->dst_port = udp_spec->hdr.dst_port;
 476
 477                         if (use_ntuple)
 478                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 479                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 480                         else
 481                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 482                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 483
 484                         if (udp_mask->hdr.dst_port) {
 485                                 filter->dst_port_mask = udp_mask->hdr.dst_port;
 486                                 en |= !use_ntuple ? 0 :
 487                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 488                         }
 489
 490                         if (udp_mask->hdr.src_port) {
 491                                 filter->src_port_mask = udp_mask->hdr.src_port;
 492                                 en |= !use_ntuple ? 0 :
 493                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 494                         }
 495                         break;
 496                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 497                         vxlan_spec = item->spec;
 498                         vxlan_mask = item->mask;
 499                         /* Check if VXLAN item is used to describe protocol.
 500                          * If yes, both spec and mask should be NULL.
 501                          * If no, both spec and mask shouldn't be NULL.
 502                          */
 503                         if ((!vxlan_spec && vxlan_mask) ||
 504                             (vxlan_spec && !vxlan_mask)) {
 505                                 rte_flow_error_set(error,
 506                                                    EINVAL,
 507                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 508                                                    item,
 509                                                    "Invalid VXLAN item");
 510                                 return -rte_errno;
 511                         }
 512
 513                         if (!vxlan_spec && !vxlan_mask) {
 514                                 filter->tunnel_type =
 515                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 516                                 break;
 517                         }
 518
 519                         if (vxlan_spec->rsvd1 || vxlan_spec->rsvd0[0] ||
 520                             vxlan_spec->rsvd0[1] || vxlan_spec->rsvd0[2] ||
 521                             vxlan_spec->flags != 0x8) {
 522                                 rte_flow_error_set(error,
 523                                                    EINVAL,
 524                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 525                                                    item,
 526                                                    "Invalid VXLAN item");
 527                                 return -rte_errno;
 528                         }
 529
 530                         /* Check if VNI is masked. */
 531                         if (vxlan_spec && vxlan_mask) {
 532                                 vni_masked =
 533                                         !!memcmp(vxlan_mask->vni, vni_mask,
 534                                                  RTE_DIM(vni_mask));
 535                                 if (vni_masked) {
 536                                         rte_flow_error_set
 537                                                 (error,
 538                                                  EINVAL,
 539                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 540                                                  item,
 541                                                  "Invalid VNI mask");
 542                                         return -rte_errno;
 543                                 }
 544
 545                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 546                                            vxlan_spec->vni, 3);
 547                                 filter->vni =
 548                                         rte_be_to_cpu_32(tenant_id_be);
 549                                 filter->tunnel_type =
 550                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 551                         }
 552                         break;
 553                 case RTE_FLOW_ITEM_TYPE_NVGRE:
 554                         nvgre_spec = item->spec;
 555                         nvgre_mask = item->mask;
 556                         /* Check if NVGRE item is used to describe protocol.
 557                          * If yes, both spec and mask should be NULL.
 558                          * If no, both spec and mask shouldn't be NULL.
 559                          */
 560                         if ((!nvgre_spec && nvgre_mask) ||
 561                             (nvgre_spec && !nvgre_mask)) {
 562                                 rte_flow_error_set(error,
 563                                                    EINVAL,
 564                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 565                                                    item,
 566                                                    "Invalid NVGRE item");
 567                                 return -rte_errno;
 568                         }
 569
 570                         if (!nvgre_spec && !nvgre_mask) {
 571                                 filter->tunnel_type =
 572                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 573                                 break;
 574                         }
 575
 576                         if (nvgre_spec->c_k_s_rsvd0_ver != 0x2000 ||
 577                             nvgre_spec->protocol != 0x6558) {
 578                                 rte_flow_error_set(error,
 579                                                    EINVAL,
 580                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 581                                                    item,
 582                                                    "Invalid NVGRE item");
 583                                 return -rte_errno;
 584                         }
 585
 586                         if (nvgre_spec && nvgre_mask) {
 587                                 tni_masked =
 588                                         !!memcmp(nvgre_mask->tni, tni_mask,
 589                                                  RTE_DIM(tni_mask));
 590                                 if (tni_masked) {
 591                                         rte_flow_error_set
 592                                                 (error,
 593                                                  EINVAL,
 594                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 595                                                  item,
 596                                                  "Invalid TNI mask");
 597                                         return -rte_errno;
 598                                 }
 599                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 600                                            nvgre_spec->tni, 3);
 601                                 filter->vni =
 602                                         rte_be_to_cpu_32(tenant_id_be);
 603                                 filter->tunnel_type =
 604                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 605                         }
 606                         break;
 607
 608                 case RTE_FLOW_ITEM_TYPE_GRE:
 609                         gre_spec = (const struct rte_flow_item_gre *)item->spec;
 610                         gre_mask = (const struct rte_flow_item_gre *)item->mask;
 611
 612                         /*
 613                          *Check if GRE item is used to describe protocol.
 614                          * If yes, both spec and mask should be NULL.
 615                          * If no, both spec and mask shouldn't be NULL.
 616                          */
 617                         if (!!gre_spec ^ !!gre_mask) {
 618                                 rte_flow_error_set(error, EINVAL,
 619                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 620                                                    item,
 621                                                    "Invalid GRE item");
 622                                 return -rte_errno;
 623                         }
 624
 625                         if (!gre_spec && !gre_mask) {
 626                                 filter->tunnel_type =
 627                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE;
 628                                 break;
 629                         }
 630                         break;
 631
 632                 case RTE_FLOW_ITEM_TYPE_VF:
 633                         vf_spec = item->spec;
 634                         vf = vf_spec->id;
 635                         if (!BNXT_PF(bp)) {
 636                                 rte_flow_error_set(error,
 637                                                    EINVAL,
 638                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 639                                                    item,
 640                                                    "Configuring on a VF!");
 641                                 return -rte_errno;
 642                         }
 643
 644                         if (vf >= bp->pdev->max_vfs) {
 645                                 rte_flow_error_set(error,
 646                                                    EINVAL,
 647                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 648                                                    item,
 649                                                    "Incorrect VF id!");
 650                                 return -rte_errno;
 651                         }
 652
 653                         if (!attr->transfer) {
 654                                 rte_flow_error_set(error,
 655                                                    ENOTSUP,
 656                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 657                                                    item,
 658                                                    "Matching VF traffic without"
 659                                                    " affecting it (transfer attribute)"
 660                                                    " is unsupported");
 661                                 return -rte_errno;
 662                         }
 663
 664                         filter->mirror_vnic_id =
 665                         dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
 666                         if (dflt_vnic < 0) {
 667                                 /* This simply indicates there's no driver
 668                                  * loaded. This is not an error.
 669                                  */
 670                                 rte_flow_error_set
 671                                         (error,
 672                                          EINVAL,
 673                                          RTE_FLOW_ERROR_TYPE_ITEM,
 674                                          item,
 675                                          "Unable to get default VNIC for VF");
 676                                 return -rte_errno;
 677                         }
 678
 679                         filter->mirror_vnic_id = dflt_vnic;
 680                         en |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
 681                         break;
 682                 default:
 683                         break;
 684                 }
 685                 item++;
 686         }
 687         filter->enables = en;
 688         filter->valid_flags = valid_flags;
 689
 690         return 0;
 691 }
 692
 693 /* Parse attributes */
 694 static int
 695 bnxt_flow_parse_attr(const struct rte_flow_attr *attr,
 696                      struct rte_flow_error *error)
 697 {
 698         /* Must be input direction */
 699         if (!attr->ingress) {
 700                 rte_flow_error_set(error,
 701                                    EINVAL,
 702                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 703                                    attr,
 704                                    "Only support ingress.");
 705                 return -rte_errno;
 706         }
 707
 708         /* Not supported */
 709         if (attr->egress) {
 710                 rte_flow_error_set(error,
 711                                    EINVAL,
 712                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 713                                    attr,
 714                                    "No support for egress.");
 715                 return -rte_errno;
 716         }
 717
 718         return 0;
 719 }
 720
 721 static struct bnxt_filter_info *
 722 bnxt_find_matching_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
 723 {
 724         struct bnxt_filter_info *mf, *f0;
 725         struct bnxt_vnic_info *vnic0;
 726         struct rte_flow *flow;
 727         int i;
 728
 729         vnic0 = &bp->vnic_info[0];
 730         f0 = STAILQ_FIRST(&vnic0->filter);
 731
 732         /* This flow has same DST MAC as the port/l2 filter. */
 733         if (memcmp(f0->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN) == 0)
 734                 return f0;
 735
 736         for (i = bp->max_vnics - 1; i >= 0; i--) {
 737                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
 738
 739                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
 740                         continue;
 741
 742                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
 743                         mf = flow->filter;
 744
 745                         if (mf->matching_l2_fltr_ptr)
 746                                 continue;
 747
 748                         if (mf->ethertype == nf->ethertype &&
 749                             mf->l2_ovlan == nf->l2_ovlan &&
 750                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
 751                             mf->l2_ivlan == nf->l2_ivlan &&
 752                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
 753                             !memcmp(mf->src_macaddr, nf->src_macaddr,
 754                                     RTE_ETHER_ADDR_LEN) &&
 755                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
 756                                     RTE_ETHER_ADDR_LEN))
 757                                 return mf;
 758                 }
 759         }
 760         return NULL;
 761 }
 762
 763 static struct bnxt_filter_info *
 764 bnxt_create_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 765                       struct bnxt_vnic_info *vnic)
 766 {
 767         struct bnxt_filter_info *filter1;
 768         int rc;
 769
 770         /* Alloc new L2 filter.
 771          * This flow needs MAC filter which does not match any existing
 772          * L2 filters.
 773          */
 774         filter1 = bnxt_get_unused_filter(bp);
 775         if (filter1 == NULL)
 776                 return NULL;
 777
 778         filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_XDP_DISABLE;
 779         filter1->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
 780         if (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 781             nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG) {
 782                 filter1->flags |=
 783                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 784                 PMD_DRV_LOG(DEBUG, "Create Outer filter\n");
 785         }
 786
 787         if (nf->filter_type == HWRM_CFA_L2_FILTER &&
 788             (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 789              nf->valid_flags & BNXT_FLOW_L2_INNER_SRC_VALID_FLAG)) {
 790                 PMD_DRV_LOG(DEBUG, "Create L2 filter for SRC MAC\n");
 791                 filter1->flags |=
 792                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_SOURCE_VALID;
 793                 memcpy(filter1->l2_addr, nf->src_macaddr, RTE_ETHER_ADDR_LEN);
 794         } else {
 795                 PMD_DRV_LOG(DEBUG, "Create L2 filter for DST MAC\n");
 796                 memcpy(filter1->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN);
 797         }
 798
 799         if (nf->priority &&
 800             (nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG ||
 801              nf->valid_flags & BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 802                 /* Tell the FW where to place the filter in the table. */
 803                 if (nf->priority > 65535) {
 804                         filter1->pri_hint =
 805                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_PRI_HINT_BELOW_FILTER;
 806                         /* This will place the filter in TCAM */
 807                         filter1->l2_filter_id_hint = (uint64_t)-1;
 808                 }
 809         }
 810
 811         filter1->enables = HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
 812                         L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;
 813         memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
 814         rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id,
 815                                      filter1);
 816         if (rc) {
 817                 bnxt_free_filter(bp, filter1);
 818                 return NULL;
 819         }
 820         filter1->l2_ref_cnt++;
 821         return filter1;
 822 }
 823
 824 struct bnxt_filter_info *
 825 bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 826                    struct bnxt_vnic_info *vnic)
 827 {
 828         struct bnxt_filter_info *l2_filter = NULL;
 829
 830         l2_filter = bnxt_find_matching_l2_filter(bp, nf);
 831         if (l2_filter) {
 832                 l2_filter->l2_ref_cnt++;
 833                 nf->matching_l2_fltr_ptr = l2_filter;
 834         } else {
 835                 l2_filter = bnxt_create_l2_filter(bp, nf, vnic);
 836                 nf->matching_l2_fltr_ptr = NULL;
 837         }
 838
 839         return l2_filter;
 840 }
 841
 842 static int bnxt_vnic_prep(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 843 {
 844         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 845         uint64_t rx_offloads = dev_conf->rxmode.offloads;
 846         int rc;
 847
 848         rc = bnxt_vnic_grp_alloc(bp, vnic);
 849         if (rc)
 850                 goto ret;
 851
 852         rc = bnxt_hwrm_vnic_alloc(bp, vnic);
 853         if (rc) {
 854                 PMD_DRV_LOG(ERR, "HWRM vnic alloc failure rc: %x\n", rc);
 855                 goto ret;
 856         }
 857         bp->nr_vnics++;
 858
 859         /* RSS context is required only when there is more than one RSS ring */
 860         if (vnic->rx_queue_cnt > 1) {
 861                 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0 /* ctx_idx 0 */);
 862                 if (rc) {
 863                         PMD_DRV_LOG(ERR,
 864                                     "HWRM vnic ctx alloc failure: %x\n", rc);
 865                         goto ret;
 866                 }
 867         } else {
 868                 PMD_DRV_LOG(DEBUG, "No RSS context required\n");
 869         }
 870
 871         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 872                 vnic->vlan_strip = true;
 873         else
 874                 vnic->vlan_strip = false;
 875
 876         rc = bnxt_hwrm_vnic_cfg(bp, vnic);
 877         if (rc)
 878                 goto ret;
 879
 880         bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
 881
 882 ret:
 883         return rc;
 884 }
 885
 886 static int match_vnic_rss_cfg(struct bnxt *bp,
 887                               struct bnxt_vnic_info *vnic,
 888                               const struct rte_flow_action_rss *rss)
 889 {
 890         unsigned int match = 0, i;
 891
 892         if (vnic->rx_queue_cnt != rss->queue_num)
 893                 return -EINVAL;
 894
 895         for (i = 0; i < rss->queue_num; i++) {
 896                 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt &&
 897                     !bp->rx_queues[rss->queue[i]]->rx_started)
 898                         return -EINVAL;
 899         }
 900
 901         for (i = 0; i < vnic->rx_queue_cnt; i++) {
 902                 int j;
 903
 904                 for (j = 0; j < vnic->rx_queue_cnt; j++) {
 905                         if (bp->grp_info[rss->queue[i]].fw_grp_id ==
 906                             vnic->fw_grp_ids[j])
 907                                 match++;
 908                 }
 909         }
 910
 911         if (match != vnic->rx_queue_cnt) {
 912                 PMD_DRV_LOG(ERR,
 913                             "VNIC queue count %d vs queues matched %d\n",
 914                             match, vnic->rx_queue_cnt);
 915                 return -EINVAL;
 916         }
 917
 918         return 0;
 919 }
 920
 921 static void
 922 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
 923                             struct bnxt_filter_info *filter1,
 924                             int use_ntuple)
 925 {
 926         if (!use_ntuple &&
 927             !(filter->valid_flags &
 928               ~(BNXT_FLOW_L2_DST_VALID_FLAG |
 929                 BNXT_FLOW_L2_SRC_VALID_FLAG |
 930                 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
 931                 BNXT_FLOW_L2_INNER_DST_VALID_FLAG))) {
 932                 filter->flags = filter1->flags;
 933                 filter->enables = filter1->enables;
 934                 filter->filter_type = HWRM_CFA_L2_FILTER;
 935                 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN);
 936                 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
 937                 filter->pri_hint = filter1->pri_hint;
 938                 filter->l2_filter_id_hint = filter1->l2_filter_id_hint;
 939         }
 940         filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
 941         filter->l2_ref_cnt = filter1->l2_ref_cnt;
 942         PMD_DRV_LOG(DEBUG,
 943                 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
 944                 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
 945 }
 946
 947 static int
 948 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
 949                              const struct rte_flow_item pattern[],
 950                              const struct rte_flow_action actions[],
 951                              const struct rte_flow_attr *attr,
 952                              struct rte_flow_error *error,
 953                              struct bnxt_filter_info *filter)
 954 {
 955         const struct rte_flow_action *act =
 956                 bnxt_flow_non_void_action(actions);
 957         struct bnxt *bp = dev->data->dev_private;
 958         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 959         const struct rte_flow_action_queue *act_q;
 960         const struct rte_flow_action_vf *act_vf;
 961         struct bnxt_filter_info *filter1 = NULL;
 962         const struct rte_flow_action_rss *rss;
 963         struct bnxt_vnic_info *vnic, *vnic0;
 964         struct bnxt_rx_queue *rxq = NULL;
 965         int dflt_vnic, vnic_id;
 966         unsigned int rss_idx;
 967         uint32_t vf = 0, i;
 968         int rc, use_ntuple;
 969
 970         rc =
 971         bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
 972         if (rc != 0)
 973                 goto ret;
 974
 975         rc = bnxt_flow_parse_attr(attr, error);
 976         if (rc != 0)
 977                 goto ret;
 978
 979         /* Since we support ingress attribute only - right now. */
 980         if (filter->filter_type == HWRM_CFA_EM_FILTER)
 981                 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
 982
 983         use_ntuple = bnxt_filter_type_check(pattern, error);
 984         switch (act->type) {
 985         case RTE_FLOW_ACTION_TYPE_QUEUE:
 986                 /* Allow this flow. Redirect to a VNIC. */
 987                 act_q = (const struct rte_flow_action_queue *)act->conf;
 988                 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
 989                         rte_flow_error_set(error,
 990                                            EINVAL,
 991                                            RTE_FLOW_ERROR_TYPE_ACTION,
 992                                            act,
 993                                            "Invalid queue ID.");
 994                         rc = -rte_errno;
 995                         goto ret;
 996                 }
 997                 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
 998
 999                 vnic_id = attr->group;
1000                 if (!vnic_id) {
1001                         PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1002                         vnic_id = act_q->index;
1003                 }
1004
1005                 vnic = &bp->vnic_info[vnic_id];
1006                 if (vnic == NULL) {
1007                         rte_flow_error_set(error,
1008                                            EINVAL,
1009                                            RTE_FLOW_ERROR_TYPE_ACTION,
1010                                            act,
1011                                            "No matching VNIC found.");
1012                         rc = -rte_errno;
1013                         goto ret;
1014                 }
1015                 if (vnic->rx_queue_cnt) {
1016                         if (vnic->start_grp_id != act_q->index) {
1017                                 PMD_DRV_LOG(ERR,
1018                                             "VNIC already in use\n");
1019                                 rte_flow_error_set(error,
1020                                                    EINVAL,
1021                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1022                                                    act,
1023                                                    "VNIC already in use");
1024                                 rc = -rte_errno;
1025                                 goto ret;
1026                         }
1027                         goto use_vnic;
1028                 }
1029
1030                 rxq = bp->rx_queues[act_q->index];
1031
1032                 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1033                     vnic->fw_vnic_id != INVALID_HW_RING_ID)
1034                         goto use_vnic;
1035
1036                 //if (!rxq ||
1037                     //bp->vnic_info[0].fw_grp_ids[act_q->index] !=
1038                     //INVALID_HW_RING_ID ||
1039                     //!rxq->rx_deferred_start) {
1040                 if (!rxq ||
1041                     bp->vnic_info[0].fw_grp_ids[act_q->index] !=
1042                     INVALID_HW_RING_ID) {
1043                         PMD_DRV_LOG(ERR,
1044                                     "Queue invalid or used with other VNIC\n");
1045                         rte_flow_error_set(error,
1046                                            EINVAL,
1047                                            RTE_FLOW_ERROR_TYPE_ACTION,
1048                                            act,
1049                                            "Queue invalid queue or in use");
1050                         rc = -rte_errno;
1051                         goto ret;
1052                 }
1053
1054                 rxq->vnic = vnic;
1055                 rxq->rx_started = 1;
1056                 vnic->rx_queue_cnt++;
1057                 vnic->start_grp_id = act_q->index;
1058                 vnic->end_grp_id = act_q->index;
1059                 vnic->func_default = 0; //This is not a default VNIC.
1060
1061                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1062
1063                 rc = bnxt_vnic_prep(bp, vnic);
1064                 if (rc)
1065                         goto ret;
1066
1067                 PMD_DRV_LOG(DEBUG,
1068                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1069                             act_q->index, vnic, vnic->fw_grp_ids);
1070
1071 use_vnic:
1072                 vnic->ff_pool_idx = vnic_id;
1073                 PMD_DRV_LOG(DEBUG,
1074                             "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1075                 filter->dst_id = vnic->fw_vnic_id;
1076                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1077                 if (filter1 == NULL) {
1078                         rc = -ENOSPC;
1079                         goto ret;
1080                 }
1081
1082                 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1083                             filter, filter1, filter1->l2_ref_cnt);
1084                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1085                 break;
1086         case RTE_FLOW_ACTION_TYPE_DROP:
1087                 vnic0 = &bp->vnic_info[0];
1088                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1089                 if (filter1 == NULL) {
1090                         rc = -ENOSPC;
1091                         goto ret;
1092                 }
1093
1094                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1095                 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1096                         filter->flags =
1097                                 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1098                 else
1099                         filter->flags =
1100                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1101                 break;
1102         case RTE_FLOW_ACTION_TYPE_COUNT:
1103                 vnic0 = &bp->vnic_info[0];
1104                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1105                 if (filter1 == NULL) {
1106                         rc = -ENOSPC;
1107                         goto ret;
1108                 }
1109
1110                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1111                 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1112                 break;
1113         case RTE_FLOW_ACTION_TYPE_VF:
1114                 act_vf = (const struct rte_flow_action_vf *)act->conf;
1115                 vf = act_vf->id;
1116
1117                 if (filter->tunnel_type ==
1118                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1119                     filter->tunnel_type ==
1120                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1121                         /* If issued on a VF, ensure id is 0 and is trusted */
1122                         if (BNXT_VF(bp)) {
1123                                 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1124                                         rte_flow_error_set(error, EINVAL,
1125                                                 RTE_FLOW_ERROR_TYPE_ACTION,
1126                                                 act,
1127                                                 "Incorrect VF");
1128                                         rc = -rte_errno;
1129                                         goto ret;
1130                                 }
1131                         }
1132
1133                         filter->enables |= filter->tunnel_type;
1134                         filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1135                         goto done;
1136                 }
1137
1138                 if (vf >= bp->pdev->max_vfs) {
1139                         rte_flow_error_set(error,
1140                                            EINVAL,
1141                                            RTE_FLOW_ERROR_TYPE_ACTION,
1142                                            act,
1143                                            "Incorrect VF id!");
1144                         rc = -rte_errno;
1145                         goto ret;
1146                 }
1147
1148                 filter->mirror_vnic_id =
1149                 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1150                 if (dflt_vnic < 0) {
1151                         /* This simply indicates there's no driver loaded.
1152                          * This is not an error.
1153                          */
1154                         rte_flow_error_set(error,
1155                                            EINVAL,
1156                                            RTE_FLOW_ERROR_TYPE_ACTION,
1157                                            act,
1158                                            "Unable to get default VNIC for VF");
1159                         rc = -rte_errno;
1160                         goto ret;
1161                 }
1162
1163                 filter->mirror_vnic_id = dflt_vnic;
1164                 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1165
1166                 vnic0 = &bp->vnic_info[0];
1167                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1168                 if (filter1 == NULL) {
1169                         rc = -ENOSPC;
1170                         goto ret;
1171                 }
1172
1173                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1174                 break;
1175         case RTE_FLOW_ACTION_TYPE_RSS:
1176                 rss = (const struct rte_flow_action_rss *)act->conf;
1177
1178                 vnic_id = attr->group;
1179                 if (!vnic_id) {
1180                         PMD_DRV_LOG(ERR, "Group id cannot be 0\n");
1181                         rte_flow_error_set(error,
1182                                            EINVAL,
1183                                            RTE_FLOW_ERROR_TYPE_ATTR,
1184                                            NULL,
1185                                            "Group id cannot be 0");
1186                         rc = -rte_errno;
1187                         goto ret;
1188                 }
1189
1190                 vnic = &bp->vnic_info[vnic_id];
1191                 if (vnic == NULL) {
1192                         rte_flow_error_set(error,
1193                                            EINVAL,
1194                                            RTE_FLOW_ERROR_TYPE_ACTION,
1195                                            act,
1196                                            "No matching VNIC for RSS group.");
1197                         rc = -rte_errno;
1198                         goto ret;
1199                 }
1200                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1201
1202                 /* Check if requested RSS config matches RSS config of VNIC
1203                  * only if it is not a fresh VNIC configuration.
1204                  * Otherwise the existing VNIC configuration can be used.
1205                  */
1206                 if (vnic->rx_queue_cnt) {
1207                         rc = match_vnic_rss_cfg(bp, vnic, rss);
1208                         if (rc) {
1209                                 PMD_DRV_LOG(ERR,
1210                                             "VNIC and RSS config mismatch\n");
1211                                 rte_flow_error_set(error,
1212                                                    EINVAL,
1213                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1214                                                    act,
1215                                                    "VNIC and RSS cfg mismatch");
1216                                 rc = -rte_errno;
1217                                 goto ret;
1218                         }
1219                         goto vnic_found;
1220                 }
1221
1222                 for (i = 0; i < rss->queue_num; i++) {
1223                         PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1224                                     rss->queue[i]);
1225
1226                         if (!rss->queue[i] ||
1227                             rss->queue[i] >= bp->rx_nr_rings ||
1228                             !bp->rx_queues[rss->queue[i]]) {
1229                                 rte_flow_error_set(error,
1230                                                    EINVAL,
1231                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1232                                                    act,
1233                                                    "Invalid queue ID for RSS");
1234                                 rc = -rte_errno;
1235                                 goto ret;
1236                         }
1237                         rxq = bp->rx_queues[rss->queue[i]];
1238
1239                         //if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1240                             //INVALID_HW_RING_ID ||
1241                             //!rxq->rx_deferred_start) {
1242                         if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1243                             INVALID_HW_RING_ID) {
1244                                 PMD_DRV_LOG(ERR,
1245                                             "queue active with other VNIC\n");
1246                                 rte_flow_error_set(error,
1247                                                    EINVAL,
1248                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1249                                                    act,
1250                                                    "Invalid queue ID for RSS");
1251                                 rc = -rte_errno;
1252                                 goto ret;
1253                         }
1254
1255                         rxq->vnic = vnic;
1256                         rxq->rx_started = 1;
1257                         vnic->rx_queue_cnt++;
1258                 }
1259
1260                 vnic->start_grp_id = rss->queue[0];
1261                 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1262                 vnic->func_default = 0; //This is not a default VNIC.
1263
1264                 rc = bnxt_vnic_prep(bp, vnic);
1265                 if (rc)
1266                         goto ret;
1267
1268                 PMD_DRV_LOG(DEBUG,
1269                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1270                             vnic_id, vnic, vnic->fw_grp_ids);
1271
1272                 vnic->ff_pool_idx = vnic_id;
1273                 PMD_DRV_LOG(DEBUG,
1274                             "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1275
1276                 /* This can be done only after vnic_grp_alloc is done. */
1277                 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1278                         vnic->fw_grp_ids[i] =
1279                                 bp->grp_info[rss->queue[i]].fw_grp_id;
1280                         /* Make sure vnic0 does not use these rings. */
1281                         bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1282                                 INVALID_HW_RING_ID;
1283                 }
1284
1285                 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1286                         for (i = 0; i < vnic->rx_queue_cnt; i++)
1287                                 vnic->rss_table[rss_idx++] =
1288                                         vnic->fw_grp_ids[i];
1289                 }
1290
1291                 /* Configure RSS only if the queue count is > 1 */
1292                 if (vnic->rx_queue_cnt > 1) {
1293                         vnic->hash_type =
1294                                 bnxt_rte_to_hwrm_hash_types(rss->types);
1295
1296                         if (!rss->key_len) {
1297                                 /* If hash key has not been specified,
1298                                  * use random hash key.
1299                                  */
1300                                 prandom_bytes(vnic->rss_hash_key,
1301                                               HW_HASH_KEY_SIZE);
1302                         } else {
1303                                 if (rss->key_len > HW_HASH_KEY_SIZE)
1304                                         memcpy(vnic->rss_hash_key,
1305                                                rss->key,
1306                                                HW_HASH_KEY_SIZE);
1307                                 else
1308                                         memcpy(vnic->rss_hash_key,
1309                                                rss->key,
1310                                                rss->key_len);
1311                         }
1312                         bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1313                 } else {
1314                         PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1315                 }
1316
1317 vnic_found:
1318                 filter->dst_id = vnic->fw_vnic_id;
1319                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1320                 if (filter1 == NULL) {
1321                         rc = -ENOSPC;
1322                         goto ret;
1323                 }
1324
1325                 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1326                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1327                 break;
1328         default:
1329                 rte_flow_error_set(error,
1330                                    EINVAL,
1331                                    RTE_FLOW_ERROR_TYPE_ACTION,
1332                                    act,
1333                                    "Invalid action.");
1334                 rc = -rte_errno;
1335                 goto ret;
1336         }
1337
1338         if (filter1 && !filter->matching_l2_fltr_ptr) {
1339                 bnxt_free_filter(bp, filter1);
1340                 filter1->fw_l2_filter_id = -1;
1341         }
1342
1343 done:
1344         act = bnxt_flow_non_void_action(++act);
1345         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1346                 rte_flow_error_set(error,
1347                                    EINVAL,
1348                                    RTE_FLOW_ERROR_TYPE_ACTION,
1349                                    act,
1350                                    "Invalid action.");
1351                 rc = -rte_errno;
1352                 goto ret;
1353         }
1354 ret:
1355         return rc;
1356 }
1357
1358 static int
1359 bnxt_flow_validate(struct rte_eth_dev *dev,
1360                    const struct rte_flow_attr *attr,
1361                    const struct rte_flow_item pattern[],
1362                    const struct rte_flow_action actions[],
1363                    struct rte_flow_error *error)
1364 {
1365         struct bnxt *bp = dev->data->dev_private;
1366         struct bnxt_filter_info *filter;
1367         int ret = 0;
1368
1369         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1370         if (ret != 0)
1371                 return ret;
1372
1373         filter = bnxt_get_unused_filter(bp);
1374         if (filter == NULL) {
1375                 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
1376                 return -ENOMEM;
1377         }
1378
1379         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1380                                            error, filter);
1381         /* No need to hold on to this filter if we are just validating flow */
1382         filter->fw_l2_filter_id = UINT64_MAX;
1383         bnxt_free_filter(bp, filter);
1384
1385         return ret;
1386 }
1387
1388 static void
1389 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1390                    struct bnxt_filter_info *new_filter)
1391 {
1392         /* Clear the new L2 filter that was created in the previous step in
1393          * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1394          * filter which points to the new destination queue and so we clear
1395          * the previous L2 filter. For ntuple filters, we are going to reuse
1396          * the old L2 filter and create new NTUPLE filter with this new
1397          * destination queue subsequently during bnxt_flow_create.
1398          */
1399         if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1400                 bnxt_hwrm_clear_l2_filter(bp, old_filter);
1401                 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1402         } else {
1403                 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1404                         bnxt_hwrm_clear_em_filter(bp, old_filter);
1405                 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1406                         bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1407         }
1408 }
1409
1410 static int
1411 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1412 {
1413         struct bnxt_filter_info *mf;
1414         struct rte_flow *flow;
1415         int i;
1416
1417         for (i = bp->max_vnics; i >= 0; i--) {
1418                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1419
1420                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1421                         continue;
1422
1423                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1424                         mf = flow->filter;
1425
1426                         if (mf->filter_type == nf->filter_type &&
1427                             mf->flags == nf->flags &&
1428                             mf->src_port == nf->src_port &&
1429                             mf->src_port_mask == nf->src_port_mask &&
1430                             mf->dst_port == nf->dst_port &&
1431                             mf->dst_port_mask == nf->dst_port_mask &&
1432                             mf->ip_protocol == nf->ip_protocol &&
1433                             mf->ip_addr_type == nf->ip_addr_type &&
1434                             mf->ethertype == nf->ethertype &&
1435                             mf->vni == nf->vni &&
1436                             mf->tunnel_type == nf->tunnel_type &&
1437                             mf->l2_ovlan == nf->l2_ovlan &&
1438                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1439                             mf->l2_ivlan == nf->l2_ivlan &&
1440                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1441                             !memcmp(mf->l2_addr, nf->l2_addr,
1442                                     RTE_ETHER_ADDR_LEN) &&
1443                             !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1444                                     RTE_ETHER_ADDR_LEN) &&
1445                             !memcmp(mf->src_macaddr, nf->src_macaddr,
1446                                     RTE_ETHER_ADDR_LEN) &&
1447                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1448                                     RTE_ETHER_ADDR_LEN) &&
1449                             !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1450                                     sizeof(nf->src_ipaddr)) &&
1451                             !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1452                                     sizeof(nf->src_ipaddr_mask)) &&
1453                             !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1454                                     sizeof(nf->dst_ipaddr)) &&
1455                             !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1456                                     sizeof(nf->dst_ipaddr_mask))) {
1457                                 if (mf->dst_id == nf->dst_id)
1458                                         return -EEXIST;
1459                                 /* Free the old filter, update flow
1460                                  * with new filter
1461                                  */
1462                                 bnxt_update_filter(bp, mf, nf);
1463                                 STAILQ_REMOVE(&vnic->filter, mf,
1464                                               bnxt_filter_info, next);
1465                                 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1466                                 bnxt_free_filter(bp, mf);
1467                                 flow->filter = nf;
1468                                 return -EXDEV;
1469                         }
1470                 }
1471         }
1472         return 0;
1473 }
1474
1475 static struct rte_flow *
1476 bnxt_flow_create(struct rte_eth_dev *dev,
1477                  const struct rte_flow_attr *attr,
1478                  const struct rte_flow_item pattern[],
1479                  const struct rte_flow_action actions[],
1480                  struct rte_flow_error *error)
1481 {
1482         struct bnxt *bp = dev->data->dev_private;
1483         struct bnxt_vnic_info *vnic = NULL;
1484         struct bnxt_filter_info *filter;
1485         bool update_flow = false;
1486         struct rte_flow *flow;
1487         unsigned int i;
1488         int ret = 0;
1489         uint32_t tun_type;
1490
1491         if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1492                 rte_flow_error_set(error, EINVAL,
1493                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1494                                    "Failed to create flow, Not a Trusted VF!");
1495                 return NULL;
1496         }
1497
1498         flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1499         if (!flow) {
1500                 rte_flow_error_set(error, ENOMEM,
1501                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1502                                    "Failed to allocate memory");
1503                 return flow;
1504         }
1505
1506         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1507         if (ret != 0) {
1508                 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1509                 goto free_flow;
1510         }
1511
1512         filter = bnxt_get_unused_filter(bp);
1513         if (filter == NULL) {
1514                 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
1515                 goto free_flow;
1516         }
1517
1518         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1519                                            error, filter);
1520         if (ret != 0)
1521                 goto free_filter;
1522
1523         ret = bnxt_match_filter(bp, filter);
1524         if (ret == -EEXIST) {
1525                 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1526                 /* Clear the filter that was created as part of
1527                  * validate_and_parse_flow() above
1528                  */
1529                 bnxt_hwrm_clear_l2_filter(bp, filter);
1530                 goto free_filter;
1531         } else if (ret == -EXDEV) {
1532                 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1533                 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1534                 update_flow = true;
1535         }
1536
1537         /* If tunnel redirection to a VF/PF is specified then only tunnel_type
1538          * is set and enable is set to the tunnel type. Issue hwrm cmd directly
1539          * in such a case.
1540          */
1541         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1542             filter->enables == filter->tunnel_type) {
1543                 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1544                 if (ret) {
1545                         rte_flow_error_set(error, -ret,
1546                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1547                                            "Unable to query tunnel to VF");
1548                         goto free_filter;
1549                 }
1550                 if (tun_type == (1U << filter->tunnel_type)) {
1551                         ret =
1552                         bnxt_hwrm_tunnel_redirect_free(bp,
1553                                                        filter->tunnel_type);
1554                         if (ret) {
1555                                 PMD_DRV_LOG(ERR,
1556                                             "Unable to free existing tunnel\n");
1557                                 rte_flow_error_set(error, -ret,
1558                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1559                                                    NULL,
1560                                                    "Unable to free preexisting "
1561                                                    "tunnel on VF");
1562                                 goto free_filter;
1563                         }
1564                 }
1565                 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
1566                 if (ret) {
1567                         rte_flow_error_set(error, -ret,
1568                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1569                                            "Unable to redirect tunnel to VF");
1570                         goto free_filter;
1571                 }
1572                 vnic = &bp->vnic_info[0];
1573                 goto done;
1574         }
1575
1576         if (filter->filter_type == HWRM_CFA_EM_FILTER) {
1577                 filter->enables |=
1578                         HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1579                 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
1580         }
1581
1582         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
1583                 filter->enables |=
1584                         HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1585                 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
1586         }
1587
1588         for (i = 0; i < bp->max_vnics; i++) {
1589                 vnic = &bp->vnic_info[i];
1590                 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1591                     filter->dst_id == vnic->fw_vnic_id) {
1592                         PMD_DRV_LOG(ERR, "Found matching VNIC Id %d\n",
1593                                     vnic->ff_pool_idx);
1594                         break;
1595                 }
1596         }
1597 done:
1598         if (!ret || update_flow) {
1599                 flow->filter = filter;
1600                 flow->vnic = vnic;
1601                 /* VNIC is set only in case of queue or RSS action */
1602                 if (vnic) {
1603                         /*
1604                          * RxQ0 is not used for flow filters.
1605                          */
1606
1607                         if (update_flow) {
1608                                 ret = -EXDEV;
1609                                 goto free_flow;
1610                         }
1611                         STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
1612                 }
1613                 PMD_DRV_LOG(ERR, "Successfully created flow.\n");
1614                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1615                 return flow;
1616         }
1617         if (!ret) {
1618                 flow->filter = filter;
1619                 flow->vnic = vnic;
1620                 if (update_flow) {
1621                         ret = -EXDEV;
1622                         goto free_flow;
1623                 }
1624                 PMD_DRV_LOG(ERR, "Successfully created flow.\n");
1625                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1626                 return flow;
1627         }
1628 free_filter:
1629         bnxt_free_filter(bp, filter);
1630 free_flow:
1631         if (ret == -EEXIST)
1632                 rte_flow_error_set(error, ret,
1633                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1634                                    "Matching Flow exists.");
1635         else if (ret == -EXDEV)
1636                 rte_flow_error_set(error, 0,
1637                                    RTE_FLOW_ERROR_TYPE_NONE, NULL,
1638                                    "Flow with pattern exists, updating destination queue");
1639         else
1640                 rte_flow_error_set(error, -ret,
1641                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1642                                    "Failed to create flow.");
1643         rte_free(flow);
1644         flow = NULL;
1645         return flow;
1646 }
1647
1648 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
1649                                                struct bnxt_filter_info *filter,
1650                                                struct rte_flow_error *error)
1651 {
1652         uint16_t tun_dst_fid;
1653         uint32_t tun_type;
1654         int ret = 0;
1655
1656         ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1657         if (ret) {
1658                 rte_flow_error_set(error, -ret,
1659                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1660                                    "Unable to query tunnel to VF");
1661                 return ret;
1662         }
1663         if (tun_type == (1U << filter->tunnel_type)) {
1664                 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
1665                                                      &tun_dst_fid);
1666                 if (ret) {
1667                         rte_flow_error_set(error, -ret,
1668                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1669                                            NULL,
1670                                            "tunnel_redirect info cmd fail");
1671                         return ret;
1672                 }
1673                 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
1674                             tun_dst_fid + bp->first_vf_id, bp->fw_fid);
1675
1676                 /* Tunnel doesn't belong to this VF, so don't send HWRM
1677                  * cmd, just delete the flow from driver
1678                  */
1679                 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id))
1680                         PMD_DRV_LOG(ERR,
1681                                     "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
1682                 else
1683                         ret = bnxt_hwrm_tunnel_redirect_free(bp,
1684                                                         filter->tunnel_type);
1685         }
1686         return ret;
1687 }
1688
1689 static int
1690 bnxt_flow_destroy(struct rte_eth_dev *dev,
1691                   struct rte_flow *flow,
1692                   struct rte_flow_error *error)
1693 {
1694         struct bnxt *bp = dev->data->dev_private;
1695         struct bnxt_filter_info *filter = flow->filter;
1696         struct bnxt_vnic_info *vnic = flow->vnic;
1697         int ret = 0;
1698
1699         if (!filter) {
1700                 ret = -EINVAL;
1701                 goto done;
1702         }
1703
1704         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1705             filter->enables == filter->tunnel_type) {
1706                 ret = bnxt_handle_tunnel_redirect_destroy(bp,
1707                                                           filter,
1708                                                           error);
1709                 if (!ret)
1710                         goto done;
1711                 else
1712                         return ret;
1713         }
1714
1715         ret = bnxt_match_filter(bp, filter);
1716         if (ret == 0)
1717                 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
1718
1719         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1720                 ret = bnxt_hwrm_clear_em_filter(bp, filter);
1721         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1722                 ret = bnxt_hwrm_clear_ntuple_filter(bp, filter);
1723         ret = bnxt_hwrm_clear_l2_filter(bp, filter);
1724
1725 done:
1726         if (!ret) {
1727                 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
1728                 bnxt_free_filter(bp, filter);
1729                 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
1730                 rte_free(flow);
1731
1732                 /* If this was the last flow associated with this vnic,
1733                  * switch the queue back to RSS pool.
1734                  */
1735                 if (vnic && STAILQ_EMPTY(&vnic->flow_list)) {
1736                         rte_free(vnic->fw_grp_ids);
1737                         if (vnic->rx_queue_cnt > 1) {
1738                                 if (BNXT_CHIP_THOR(bp)) {
1739                                         int j;
1740
1741                                         for (j = 0; j < vnic->num_lb_ctxts;
1742                                              j++) {
1743                                                 bnxt_hwrm_vnic_ctx_free(bp,
1744                                                                         vnic,
1745                                                                         vnic->fw_grp_ids[j]);
1746                                                 vnic->fw_grp_ids[j] =
1747                                                         INVALID_HW_RING_ID;
1748                                         }
1749                                         vnic->num_lb_ctxts = 0;
1750                                 } else {
1751                                         bnxt_hwrm_vnic_ctx_free(bp,
1752                                                                 vnic,
1753                                                                 vnic->rss_rule);
1754                                         vnic->rss_rule = INVALID_HW_RING_ID;
1755                                 }
1756                         }
1757                         bnxt_hwrm_vnic_free(bp, vnic);
1758                         vnic->rx_queue_cnt = 0;
1759                         bp->nr_vnics--;
1760                 }
1761         } else {
1762                 rte_flow_error_set(error, -ret,
1763                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1764                                    "Failed to destroy flow.");
1765         }
1766
1767         return ret;
1768 }
1769
1770 static int
1771 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1772 {
1773         struct bnxt *bp = dev->data->dev_private;
1774         struct bnxt_vnic_info *vnic;
1775         struct rte_flow *flow;
1776         unsigned int i;
1777         int ret = 0;
1778
1779         for (i = 0; i < bp->max_vnics; i++) {
1780                 vnic = &bp->vnic_info[i];
1781                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1782                         continue;
1783
1784                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1785                         struct bnxt_filter_info *filter = flow->filter;
1786
1787                         if (filter->filter_type ==
1788                             HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1789                             filter->enables == filter->tunnel_type) {
1790                                 ret =
1791                                 bnxt_handle_tunnel_redirect_destroy(bp,
1792                                                                     filter,
1793                                                                     error);
1794                                 if (!ret)
1795                                         goto done;
1796                                 else
1797                                         return ret;
1798                         }
1799
1800                         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1801                                 ret = bnxt_hwrm_clear_em_filter(bp, filter);
1802                         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1803                                 ret = bnxt_hwrm_clear_ntuple_filter(bp, filter);
1804                         else if (!i)
1805                                 ret = bnxt_hwrm_clear_l2_filter(bp, filter);
1806
1807                         if (ret) {
1808                                 rte_flow_error_set
1809                                         (error,
1810                                          -ret,
1811                                          RTE_FLOW_ERROR_TYPE_HANDLE,
1812                                          NULL,
1813                                          "Failed to flush flow in HW.");
1814                                 return -rte_errno;
1815                         }
1816 done:
1817                         bnxt_free_filter(bp, filter);
1818                         STAILQ_REMOVE(&vnic->flow_list, flow,
1819                                       rte_flow, next);
1820                         rte_free(flow);
1821                 }
1822         }
1823
1824         return ret;
1825 }
1826
1827 const struct rte_flow_ops bnxt_flow_ops = {
1828         .validate = bnxt_flow_validate,
1829         .create = bnxt_flow_create,
1830         .destroy = bnxt_flow_destroy,
1831         .flush = bnxt_flow_flush,
1832 };