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