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 __rte_unused)
  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_flow_item_nvgre *nvgre_spec;
 140         const struct rte_flow_item_nvgre *nvgre_mask;
 141         const struct rte_flow_item_gre *gre_spec;
 142         const struct rte_flow_item_gre *gre_mask;
 143         const struct rte_flow_item_vxlan *vxlan_spec;
 144         const struct rte_flow_item_vxlan *vxlan_mask;
 145         uint8_t vni_mask[] = {0xFF, 0xFF, 0xFF};
 146         uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF};
 147         const struct rte_flow_item_vf *vf_spec;
 148         uint32_t tenant_id_be = 0, valid_flags = 0;
 149         bool vni_masked = 0;
 150         bool tni_masked = 0;
 151         uint32_t en_ethertype;
 152         uint8_t inner = 0;
 153         uint32_t vf = 0;
 154         uint32_t en = 0;
 155         int use_ntuple;
 156         int dflt_vnic;
 157
 158         use_ntuple = bnxt_filter_type_check(pattern, error);
 159         if (use_ntuple < 0)
 160                 return use_ntuple;
 161         PMD_DRV_LOG(DEBUG, "Use NTUPLE %d\n", use_ntuple);
 162
 163         filter->filter_type = use_ntuple ?
 164                 HWRM_CFA_NTUPLE_FILTER : HWRM_CFA_L2_FILTER;
 165         en_ethertype = use_ntuple ?
 166                 NTUPLE_FLTR_ALLOC_INPUT_EN_ETHERTYPE :
 167                 EM_FLOW_ALLOC_INPUT_EN_ETHERTYPE;
 168
 169         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
 170                 if (item->last) {
 171                         /* last or range is NOT supported as match criteria */
 172                         rte_flow_error_set(error, EINVAL,
 173                                            RTE_FLOW_ERROR_TYPE_ITEM,
 174                                            item,
 175                                            "No support for range");
 176                         return -rte_errno;
 177                 }
 178
 179                 if (!item->spec || !item->mask) {
 180                         rte_flow_error_set(error, EINVAL,
 181                                            RTE_FLOW_ERROR_TYPE_ITEM,
 182                                            item,
 183                                            "spec/mask is NULL");
 184                         return -rte_errno;
 185                 }
 186
 187                 switch (item->type) {
 188                 case RTE_FLOW_ITEM_TYPE_ANY:
 189                         inner =
 190                         ((const struct rte_flow_item_any *)item->spec)->num > 3;
 191                         if (inner)
 192                                 PMD_DRV_LOG(DEBUG, "Parse inner header\n");
 193                         break;
 194                 case RTE_FLOW_ITEM_TYPE_ETH:
 195                         if (!item->spec || !item->mask)
 196                                 break;
 197
 198                         eth_spec = item->spec;
 199                         eth_mask = item->mask;
 200
 201                         /* Source MAC address mask cannot be partially set.
 202                          * Should be All 0's or all 1's.
 203                          * Destination MAC address mask must not be partially
 204                          * set. Should be all 1's or all 0's.
 205                          */
 206                         if ((!rte_is_zero_ether_addr(&eth_mask->src) &&
 207                              !rte_is_broadcast_ether_addr(&eth_mask->src)) ||
 208                             (!rte_is_zero_ether_addr(&eth_mask->dst) &&
 209                              !rte_is_broadcast_ether_addr(&eth_mask->dst))) {
 210                                 rte_flow_error_set(error,
 211                                                    EINVAL,
 212                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 213                                                    item,
 214                                                    "MAC_addr mask not valid");
 215                                 return -rte_errno;
 216                         }
 217
 218                         /* Mask is not allowed. Only exact matches are */
 219                         if (eth_mask->type &&
 220                             eth_mask->type != RTE_BE16(0xffff)) {
 221                                 rte_flow_error_set(error, EINVAL,
 222                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 223                                                    item,
 224                                                    "ethertype mask not valid");
 225                                 return -rte_errno;
 226                         }
 227
 228                         if (rte_is_broadcast_ether_addr(&eth_mask->dst)) {
 229                                 if (!rte_is_unicast_ether_addr(&eth_spec->dst)) {
 230                                         rte_flow_error_set(error,
 231                                                            EINVAL,
 232                                                            RTE_FLOW_ERROR_TYPE_ITEM,
 233                                                            item,
 234                                                            "DMAC is invalid");
 235                                         return -rte_errno;
 236                                 }
 237                                 rte_memcpy(filter->dst_macaddr,
 238                                            &eth_spec->dst, RTE_ETHER_ADDR_LEN);
 239                                 en |= use_ntuple ?
 240                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_MACADDR :
 241                                         EM_FLOW_ALLOC_INPUT_EN_DST_MACADDR;
 242                                 valid_flags |= inner ?
 243                                         BNXT_FLOW_L2_INNER_DST_VALID_FLAG :
 244                                         BNXT_FLOW_L2_DST_VALID_FLAG;
 245                                 filter->priority = attr->priority;
 246                                 PMD_DRV_LOG(DEBUG,
 247                                             "Creating a priority flow\n");
 248                         }
 249
 250                         if (rte_is_broadcast_ether_addr(&eth_mask->src)) {
 251                                 if (!rte_is_unicast_ether_addr(&eth_spec->src)) {
 252                                         rte_flow_error_set(error,
 253                                                            EINVAL,
 254                                                            RTE_FLOW_ERROR_TYPE_ITEM,
 255                                                            item,
 256                                                            "SMAC is invalid");
 257                                         return -rte_errno;
 258                                 }
 259                                 rte_memcpy(filter->src_macaddr,
 260                                            &eth_spec->src, RTE_ETHER_ADDR_LEN);
 261                                 en |= use_ntuple ?
 262                                         NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR :
 263                                         EM_FLOW_ALLOC_INPUT_EN_SRC_MACADDR;
 264                                 valid_flags |= inner ?
 265                                         BNXT_FLOW_L2_INNER_SRC_VALID_FLAG :
 266                                         BNXT_FLOW_L2_SRC_VALID_FLAG;
 267                         } /*
 268                            * else {
 269                            *  PMD_DRV_LOG(ERR, "Handle this condition\n");
 270                            * }
 271                            */
 272                         if (eth_mask->type) {
 273                                 filter->ethertype =
 274                                         rte_be_to_cpu_16(eth_spec->type);
 275                                 en |= en_ethertype;
 276                         }
 277                         if (inner)
 278                                 valid_flags |= BNXT_FLOW_PARSE_INNER_FLAG;
 279
 280                         break;
 281                 case RTE_FLOW_ITEM_TYPE_VLAN:
 282                         vlan_spec = item->spec;
 283                         vlan_mask = item->mask;
 284                         if (en & en_ethertype) {
 285                                 rte_flow_error_set(error, EINVAL,
 286                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 287                                                    item,
 288                                                    "VLAN TPID matching is not"
 289                                                    " supported");
 290                                 return -rte_errno;
 291                         }
 292                         if (vlan_mask->tci &&
 293                             vlan_mask->tci == RTE_BE16(0x0fff)) {
 294                                 /* Only the VLAN ID can be matched. */
 295                                 filter->l2_ovlan =
 296                                         rte_be_to_cpu_16(vlan_spec->tci &
 297                                                          RTE_BE16(0x0fff));
 298                                 en |= EM_FLOW_ALLOC_INPUT_EN_OVLAN_VID;
 299                         } else {
 300                                 rte_flow_error_set(error,
 301                                                    EINVAL,
 302                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 303                                                    item,
 304                                                    "VLAN mask is invalid");
 305                                 return -rte_errno;
 306                         }
 307                         if (vlan_mask->inner_type &&
 308                             vlan_mask->inner_type != RTE_BE16(0xffff)) {
 309                                 rte_flow_error_set(error, EINVAL,
 310                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 311                                                    item,
 312                                                    "inner ethertype mask not"
 313                                                    " valid");
 314                                 return -rte_errno;
 315                         }
 316                         if (vlan_mask->inner_type) {
 317                                 filter->ethertype =
 318                                         rte_be_to_cpu_16(vlan_spec->inner_type);
 319                                 en |= en_ethertype;
 320                         }
 321
 322                         break;
 323                 case RTE_FLOW_ITEM_TYPE_IPV4:
 324                         /* If mask is not involved, we could use EM filters. */
 325                         ipv4_spec = item->spec;
 326                         ipv4_mask = item->mask;
 327
 328                         if (!item->spec || !item->mask)
 329                                 break;
 330
 331                         /* Only IP DST and SRC fields are maskable. */
 332                         if (ipv4_mask->hdr.version_ihl ||
 333                             ipv4_mask->hdr.type_of_service ||
 334                             ipv4_mask->hdr.total_length ||
 335                             ipv4_mask->hdr.packet_id ||
 336                             ipv4_mask->hdr.fragment_offset ||
 337                             ipv4_mask->hdr.time_to_live ||
 338                             ipv4_mask->hdr.next_proto_id ||
 339                             ipv4_mask->hdr.hdr_checksum) {
 340                                 rte_flow_error_set(error,
 341                                                    EINVAL,
 342                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 343                                                    item,
 344                                                    "Invalid IPv4 mask.");
 345                                 return -rte_errno;
 346                         }
 347
 348                         filter->dst_ipaddr[0] = ipv4_spec->hdr.dst_addr;
 349                         filter->src_ipaddr[0] = ipv4_spec->hdr.src_addr;
 350
 351                         if (use_ntuple)
 352                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 353                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 354                         else
 355                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 356                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 357
 358                         if (ipv4_mask->hdr.src_addr) {
 359                                 filter->src_ipaddr_mask[0] =
 360                                         ipv4_mask->hdr.src_addr;
 361                                 en |= !use_ntuple ? 0 :
 362                                      NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 363                         }
 364
 365                         if (ipv4_mask->hdr.dst_addr) {
 366                                 filter->dst_ipaddr_mask[0] =
 367                                         ipv4_mask->hdr.dst_addr;
 368                                 en |= !use_ntuple ? 0 :
 369                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 370                         }
 371
 372                         filter->ip_addr_type = use_ntuple ?
 373                          HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_IP_ADDR_TYPE_IPV4 :
 374                          HWRM_CFA_EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV4;
 375
 376                         if (ipv4_spec->hdr.next_proto_id) {
 377                                 filter->ip_protocol =
 378                                         ipv4_spec->hdr.next_proto_id;
 379                                 if (use_ntuple)
 380                                         en |= NTUPLE_FLTR_ALLOC_IN_EN_IP_PROTO;
 381                                 else
 382                                         en |= EM_FLOW_ALLOC_INPUT_EN_IP_PROTO;
 383                         }
 384                         break;
 385                 case RTE_FLOW_ITEM_TYPE_IPV6:
 386                         ipv6_spec = item->spec;
 387                         ipv6_mask = item->mask;
 388
 389                         if (!item->spec || !item->mask)
 390                                 break;
 391
 392                         /* Only IP DST and SRC fields are maskable. */
 393                         if (ipv6_mask->hdr.vtc_flow ||
 394                             ipv6_mask->hdr.payload_len ||
 395                             ipv6_mask->hdr.proto ||
 396                             ipv6_mask->hdr.hop_limits) {
 397                                 rte_flow_error_set(error,
 398                                                    EINVAL,
 399                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 400                                                    item,
 401                                                    "Invalid IPv6 mask.");
 402                                 return -rte_errno;
 403                         }
 404
 405                         if (use_ntuple)
 406                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 407                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 408                         else
 409                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 410                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 411
 412                         rte_memcpy(filter->src_ipaddr,
 413                                    ipv6_spec->hdr.src_addr, 16);
 414                         rte_memcpy(filter->dst_ipaddr,
 415                                    ipv6_spec->hdr.dst_addr, 16);
 416
 417                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.src_addr,
 418                                                    16)) {
 419                                 rte_memcpy(filter->src_ipaddr_mask,
 420                                            ipv6_mask->hdr.src_addr, 16);
 421                                 en |= !use_ntuple ? 0 :
 422                                     NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 423                         }
 424
 425                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.dst_addr,
 426                                                    16)) {
 427                                 rte_memcpy(filter->dst_ipaddr_mask,
 428                                            ipv6_mask->hdr.dst_addr, 16);
 429                                 en |= !use_ntuple ? 0 :
 430                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 431                         }
 432
 433                         filter->ip_addr_type = use_ntuple ?
 434                                 NTUPLE_FLTR_ALLOC_INPUT_IP_ADDR_TYPE_IPV6 :
 435                                 EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV6;
 436                         break;
 437                 case RTE_FLOW_ITEM_TYPE_TCP:
 438                         tcp_spec = item->spec;
 439                         tcp_mask = item->mask;
 440
 441                         if (!item->spec || !item->mask)
 442                                 break;
 443
 444                         /* Check TCP mask. Only DST & SRC ports are maskable */
 445                         if (tcp_mask->hdr.sent_seq ||
 446                             tcp_mask->hdr.recv_ack ||
 447                             tcp_mask->hdr.data_off ||
 448                             tcp_mask->hdr.tcp_flags ||
 449                             tcp_mask->hdr.rx_win ||
 450                             tcp_mask->hdr.cksum ||
 451                             tcp_mask->hdr.tcp_urp) {
 452                                 rte_flow_error_set(error,
 453                                                    EINVAL,
 454                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 455                                                    item,
 456                                                    "Invalid TCP mask");
 457                                 return -rte_errno;
 458                         }
 459
 460                         filter->src_port = tcp_spec->hdr.src_port;
 461                         filter->dst_port = tcp_spec->hdr.dst_port;
 462
 463                         if (use_ntuple)
 464                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 465                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 466                         else
 467                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 468                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 469
 470                         if (tcp_mask->hdr.dst_port) {
 471                                 filter->dst_port_mask = tcp_mask->hdr.dst_port;
 472                                 en |= !use_ntuple ? 0 :
 473                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 474                         }
 475
 476                         if (tcp_mask->hdr.src_port) {
 477                                 filter->src_port_mask = tcp_mask->hdr.src_port;
 478                                 en |= !use_ntuple ? 0 :
 479                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 480                         }
 481                         break;
 482                 case RTE_FLOW_ITEM_TYPE_UDP:
 483                         udp_spec = item->spec;
 484                         udp_mask = item->mask;
 485
 486                         if (!item->spec || !item->mask)
 487                                 break;
 488
 489                         if (udp_mask->hdr.dgram_len ||
 490                             udp_mask->hdr.dgram_cksum) {
 491                                 rte_flow_error_set(error,
 492                                                    EINVAL,
 493                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 494                                                    item,
 495                                                    "Invalid UDP mask");
 496                                 return -rte_errno;
 497                         }
 498
 499                         filter->src_port = udp_spec->hdr.src_port;
 500                         filter->dst_port = udp_spec->hdr.dst_port;
 501
 502                         if (use_ntuple)
 503                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 504                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 505                         else
 506                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 507                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 508
 509                         if (udp_mask->hdr.dst_port) {
 510                                 filter->dst_port_mask = udp_mask->hdr.dst_port;
 511                                 en |= !use_ntuple ? 0 :
 512                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 513                         }
 514
 515                         if (udp_mask->hdr.src_port) {
 516                                 filter->src_port_mask = udp_mask->hdr.src_port;
 517                                 en |= !use_ntuple ? 0 :
 518                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 519                         }
 520                         break;
 521                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 522                         vxlan_spec = item->spec;
 523                         vxlan_mask = item->mask;
 524                         /* Check if VXLAN item is used to describe protocol.
 525                          * If yes, both spec and mask should be NULL.
 526                          * If no, both spec and mask shouldn't be NULL.
 527                          */
 528                         if ((!vxlan_spec && vxlan_mask) ||
 529                             (vxlan_spec && !vxlan_mask)) {
 530                                 rte_flow_error_set(error,
 531                                                    EINVAL,
 532                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 533                                                    item,
 534                                                    "Invalid VXLAN item");
 535                                 return -rte_errno;
 536                         }
 537
 538                         if (!vxlan_spec && !vxlan_mask) {
 539                                 filter->tunnel_type =
 540                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 541                                 break;
 542                         }
 543
 544                         if (vxlan_spec->rsvd1 || vxlan_spec->rsvd0[0] ||
 545                             vxlan_spec->rsvd0[1] || vxlan_spec->rsvd0[2] ||
 546                             vxlan_spec->flags != 0x8) {
 547                                 rte_flow_error_set(error,
 548                                                    EINVAL,
 549                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 550                                                    item,
 551                                                    "Invalid VXLAN item");
 552                                 return -rte_errno;
 553                         }
 554
 555                         /* Check if VNI is masked. */
 556                         if (vxlan_spec && vxlan_mask) {
 557                                 vni_masked =
 558                                         !!memcmp(vxlan_mask->vni, vni_mask,
 559                                                  RTE_DIM(vni_mask));
 560                                 if (vni_masked) {
 561                                         rte_flow_error_set
 562                                                 (error,
 563                                                  EINVAL,
 564                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 565                                                  item,
 566                                                  "Invalid VNI mask");
 567                                         return -rte_errno;
 568                                 }
 569
 570                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 571                                            vxlan_spec->vni, 3);
 572                                 filter->vni =
 573                                         rte_be_to_cpu_32(tenant_id_be);
 574                                 filter->tunnel_type =
 575                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 576                         }
 577                         break;
 578                 case RTE_FLOW_ITEM_TYPE_NVGRE:
 579                         nvgre_spec = item->spec;
 580                         nvgre_mask = item->mask;
 581                         /* Check if NVGRE item is used to describe protocol.
 582                          * If yes, both spec and mask should be NULL.
 583                          * If no, both spec and mask shouldn't be NULL.
 584                          */
 585                         if ((!nvgre_spec && nvgre_mask) ||
 586                             (nvgre_spec && !nvgre_mask)) {
 587                                 rte_flow_error_set(error,
 588                                                    EINVAL,
 589                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 590                                                    item,
 591                                                    "Invalid NVGRE item");
 592                                 return -rte_errno;
 593                         }
 594
 595                         if (!nvgre_spec && !nvgre_mask) {
 596                                 filter->tunnel_type =
 597                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 598                                 break;
 599                         }
 600
 601                         if (nvgre_spec->c_k_s_rsvd0_ver != 0x2000 ||
 602                             nvgre_spec->protocol != 0x6558) {
 603                                 rte_flow_error_set(error,
 604                                                    EINVAL,
 605                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 606                                                    item,
 607                                                    "Invalid NVGRE item");
 608                                 return -rte_errno;
 609                         }
 610
 611                         if (nvgre_spec && nvgre_mask) {
 612                                 tni_masked =
 613                                         !!memcmp(nvgre_mask->tni, tni_mask,
 614                                                  RTE_DIM(tni_mask));
 615                                 if (tni_masked) {
 616                                         rte_flow_error_set
 617                                                 (error,
 618                                                  EINVAL,
 619                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 620                                                  item,
 621                                                  "Invalid TNI mask");
 622                                         return -rte_errno;
 623                                 }
 624                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 625                                            nvgre_spec->tni, 3);
 626                                 filter->vni =
 627                                         rte_be_to_cpu_32(tenant_id_be);
 628                                 filter->tunnel_type =
 629                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 630                         }
 631                         break;
 632
 633                 case RTE_FLOW_ITEM_TYPE_GRE:
 634                         gre_spec = (const struct rte_flow_item_gre *)item->spec;
 635                         gre_mask = (const struct rte_flow_item_gre *)item->mask;
 636
 637                         /*
 638                          *Check if GRE item is used to describe protocol.
 639                          * If yes, both spec and mask should be NULL.
 640                          * If no, both spec and mask shouldn't be NULL.
 641                          */
 642                         if (!!gre_spec ^ !!gre_mask) {
 643                                 rte_flow_error_set(error, EINVAL,
 644                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 645                                                    item,
 646                                                    "Invalid GRE item");
 647                                 return -rte_errno;
 648                         }
 649
 650                         if (!gre_spec && !gre_mask) {
 651                                 filter->tunnel_type =
 652                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE;
 653                                 break;
 654                         }
 655                         break;
 656
 657                 case RTE_FLOW_ITEM_TYPE_VF:
 658                         vf_spec = item->spec;
 659                         vf = vf_spec->id;
 660                         if (!BNXT_PF(bp)) {
 661                                 rte_flow_error_set(error,
 662                                                    EINVAL,
 663                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 664                                                    item,
 665                                                    "Configuring on a VF!");
 666                                 return -rte_errno;
 667                         }
 668
 669                         if (vf >= bp->pdev->max_vfs) {
 670                                 rte_flow_error_set(error,
 671                                                    EINVAL,
 672                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 673                                                    item,
 674                                                    "Incorrect VF id!");
 675                                 return -rte_errno;
 676                         }
 677
 678                         if (!attr->transfer) {
 679                                 rte_flow_error_set(error,
 680                                                    ENOTSUP,
 681                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 682                                                    item,
 683                                                    "Matching VF traffic without"
 684                                                    " affecting it (transfer attribute)"
 685                                                    " is unsupported");
 686                                 return -rte_errno;
 687                         }
 688
 689                         filter->mirror_vnic_id =
 690                         dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
 691                         if (dflt_vnic < 0) {
 692                                 /* This simply indicates there's no driver
 693                                  * loaded. This is not an error.
 694                                  */
 695                                 rte_flow_error_set
 696                                         (error,
 697                                          EINVAL,
 698                                          RTE_FLOW_ERROR_TYPE_ITEM,
 699                                          item,
 700                                          "Unable to get default VNIC for VF");
 701                                 return -rte_errno;
 702                         }
 703
 704                         filter->mirror_vnic_id = dflt_vnic;
 705                         en |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
 706                         break;
 707                 default:
 708                         break;
 709                 }
 710                 item++;
 711         }
 712         filter->enables = en;
 713         filter->valid_flags = valid_flags;
 714
 715         return 0;
 716 }
 717
 718 /* Parse attributes */
 719 static int
 720 bnxt_flow_parse_attr(const struct rte_flow_attr *attr,
 721                      struct rte_flow_error *error)
 722 {
 723         /* Must be input direction */
 724         if (!attr->ingress) {
 725                 rte_flow_error_set(error,
 726                                    EINVAL,
 727                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 728                                    attr,
 729                                    "Only support ingress.");
 730                 return -rte_errno;
 731         }
 732
 733         /* Not supported */
 734         if (attr->egress) {
 735                 rte_flow_error_set(error,
 736                                    EINVAL,
 737                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 738                                    attr,
 739                                    "No support for egress.");
 740                 return -rte_errno;
 741         }
 742
 743         return 0;
 744 }
 745
 746 static struct bnxt_filter_info *
 747 bnxt_find_matching_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
 748 {
 749         struct bnxt_filter_info *mf, *f0;
 750         struct bnxt_vnic_info *vnic0;
 751         struct rte_flow *flow;
 752         int i;
 753
 754         vnic0 = &bp->vnic_info[0];
 755         f0 = STAILQ_FIRST(&vnic0->filter);
 756
 757         /* This flow has same DST MAC as the port/l2 filter. */
 758         if (memcmp(f0->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN) == 0)
 759                 return f0;
 760
 761         for (i = bp->max_vnics - 1; i >= 0; i--) {
 762                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
 763
 764                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
 765                         continue;
 766
 767                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
 768                         mf = flow->filter;
 769
 770                         if (mf->matching_l2_fltr_ptr)
 771                                 continue;
 772
 773                         if (mf->ethertype == nf->ethertype &&
 774                             mf->l2_ovlan == nf->l2_ovlan &&
 775                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
 776                             mf->l2_ivlan == nf->l2_ivlan &&
 777                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
 778                             !memcmp(mf->src_macaddr, nf->src_macaddr,
 779                                     RTE_ETHER_ADDR_LEN) &&
 780                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
 781                                     RTE_ETHER_ADDR_LEN))
 782                                 return mf;
 783                 }
 784         }
 785         return NULL;
 786 }
 787
 788 static struct bnxt_filter_info *
 789 bnxt_create_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 790                       struct bnxt_vnic_info *vnic)
 791 {
 792         struct bnxt_filter_info *filter1;
 793         int rc;
 794
 795         /* Alloc new L2 filter.
 796          * This flow needs MAC filter which does not match any existing
 797          * L2 filters.
 798          */
 799         filter1 = bnxt_get_unused_filter(bp);
 800         if (filter1 == NULL)
 801                 return NULL;
 802
 803         filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_XDP_DISABLE;
 804         filter1->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
 805         if (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 806             nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG) {
 807                 filter1->flags |=
 808                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 809                 PMD_DRV_LOG(DEBUG, "Create Outer filter\n");
 810         }
 811
 812         if (nf->filter_type == HWRM_CFA_L2_FILTER &&
 813             (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 814              nf->valid_flags & BNXT_FLOW_L2_INNER_SRC_VALID_FLAG)) {
 815                 PMD_DRV_LOG(DEBUG, "Create L2 filter for SRC MAC\n");
 816                 filter1->flags |=
 817                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_SOURCE_VALID;
 818                 memcpy(filter1->l2_addr, nf->src_macaddr, RTE_ETHER_ADDR_LEN);
 819         } else {
 820                 PMD_DRV_LOG(DEBUG, "Create L2 filter for DST MAC\n");
 821                 memcpy(filter1->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN);
 822         }
 823
 824         if (nf->priority &&
 825             (nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG ||
 826              nf->valid_flags & BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 827                 /* Tell the FW where to place the filter in the table. */
 828                 if (nf->priority > 65535) {
 829                         filter1->pri_hint =
 830                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_PRI_HINT_BELOW_FILTER;
 831                         /* This will place the filter in TCAM */
 832                         filter1->l2_filter_id_hint = (uint64_t)-1;
 833                 }
 834         }
 835
 836         if (nf->valid_flags & (BNXT_FLOW_L2_DST_VALID_FLAG |
 837                                BNXT_FLOW_L2_SRC_VALID_FLAG |
 838                                BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
 839                                BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 840                 filter1->enables =
 841                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
 842                         L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;
 843                 memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
 844         }
 845
 846         if (nf->valid_flags & BNXT_FLOW_L2_DROP_FLAG) {
 847                 filter1->flags |=
 848                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_DROP;
 849                 if (nf->ethertype == RTE_ETHER_TYPE_IPV4) {
 850                         /* Num VLANs for drop filter will/should be 0.
 851                          * If the req is memset to 0, then the count will
 852                          * be automatically set to 0.
 853                          */
 854                         if (nf->valid_flags & BNXT_FLOW_PARSE_INNER_FLAG) {
 855                                 filter1->enables |=
 856                                         L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS;
 857                         } else {
 858                                 filter1->enables |=
 859                                         L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS;
 860                                 filter1->flags |=
 861                                 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 862                         }
 863                 }
 864         }
 865
 866         rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id,
 867                                      filter1);
 868         if (rc) {
 869                 bnxt_free_filter(bp, filter1);
 870                 return NULL;
 871         }
 872         filter1->l2_ref_cnt++;
 873         return filter1;
 874 }
 875
 876 struct bnxt_filter_info *
 877 bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 878                    struct bnxt_vnic_info *vnic)
 879 {
 880         struct bnxt_filter_info *l2_filter = NULL;
 881
 882         l2_filter = bnxt_find_matching_l2_filter(bp, nf);
 883         if (l2_filter) {
 884                 l2_filter->l2_ref_cnt++;
 885                 nf->matching_l2_fltr_ptr = l2_filter;
 886         } else {
 887                 l2_filter = bnxt_create_l2_filter(bp, nf, vnic);
 888                 nf->matching_l2_fltr_ptr = NULL;
 889         }
 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         PMD_DRV_LOG(DEBUG,
 997                 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
 998                 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
 999 }
1000
1001 static int
1002 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
1003                              const struct rte_flow_item pattern[],
1004                              const struct rte_flow_action actions[],
1005                              const struct rte_flow_attr *attr,
1006                              struct rte_flow_error *error,
1007                              struct bnxt_filter_info *filter)
1008 {
1009         const struct rte_flow_action *act =
1010                 bnxt_flow_non_void_action(actions);
1011         struct bnxt *bp = dev->data->dev_private;
1012         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
1013         struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL;
1014         const struct rte_flow_action_queue *act_q;
1015         const struct rte_flow_action_vf *act_vf;
1016         struct bnxt_filter_info *filter1 = NULL;
1017         const struct rte_flow_action_rss *rss;
1018         struct bnxt_rx_queue *rxq = NULL;
1019         int dflt_vnic, vnic_id;
1020         unsigned int rss_idx;
1021         uint32_t vf = 0, i;
1022         int rc, use_ntuple;
1023
1024         rc =
1025         bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
1026         if (rc != 0)
1027                 goto ret;
1028
1029         rc = bnxt_flow_parse_attr(attr, error);
1030         if (rc != 0)
1031                 goto ret;
1032
1033         /* Since we support ingress attribute only - right now. */
1034         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1035                 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
1036
1037         use_ntuple = bnxt_filter_type_check(pattern, error);
1038         switch (act->type) {
1039         case RTE_FLOW_ACTION_TYPE_QUEUE:
1040                 /* Allow this flow. Redirect to a VNIC. */
1041                 act_q = (const struct rte_flow_action_queue *)act->conf;
1042                 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
1043                         rte_flow_error_set(error,
1044                                            EINVAL,
1045                                            RTE_FLOW_ERROR_TYPE_ACTION,
1046                                            act,
1047                                            "Invalid queue ID.");
1048                         rc = -rte_errno;
1049                         goto ret;
1050                 }
1051                 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
1052
1053                 vnic_id = attr->group;
1054                 if (!vnic_id) {
1055                         PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1056                         vnic_id = act_q->index;
1057                 }
1058
1059                 vnic = &bp->vnic_info[vnic_id];
1060                 if (vnic == NULL) {
1061                         rte_flow_error_set(error,
1062                                            EINVAL,
1063                                            RTE_FLOW_ERROR_TYPE_ACTION,
1064                                            act,
1065                                            "No matching VNIC found.");
1066                         rc = -rte_errno;
1067                         goto ret;
1068                 }
1069                 if (vnic->rx_queue_cnt) {
1070                         if (vnic->start_grp_id != act_q->index) {
1071                                 PMD_DRV_LOG(ERR,
1072                                             "VNIC already in use\n");
1073                                 rte_flow_error_set(error,
1074                                                    EINVAL,
1075                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1076                                                    act,
1077                                                    "VNIC already in use");
1078                                 rc = -rte_errno;
1079                                 goto ret;
1080                         }
1081                         goto use_vnic;
1082                 }
1083
1084                 rxq = bp->rx_queues[act_q->index];
1085
1086                 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1087                     vnic->fw_vnic_id != INVALID_HW_RING_ID)
1088                         goto use_vnic;
1089
1090                 if (!rxq ||
1091                     bp->vnic_info[0].fw_grp_ids[act_q->index] !=
1092                     INVALID_HW_RING_ID) {
1093                         PMD_DRV_LOG(ERR,
1094                                     "Queue invalid or used with other VNIC\n");
1095                         rte_flow_error_set(error,
1096                                            EINVAL,
1097                                            RTE_FLOW_ERROR_TYPE_ACTION,
1098                                            act,
1099                                            "Queue invalid queue or in use");
1100                         rc = -rte_errno;
1101                         goto ret;
1102                 }
1103
1104                 rxq->vnic = vnic;
1105                 rxq->rx_started = 1;
1106                 vnic->rx_queue_cnt++;
1107                 vnic->start_grp_id = act_q->index;
1108                 vnic->end_grp_id = act_q->index;
1109                 vnic->func_default = 0; //This is not a default VNIC.
1110
1111                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1112
1113                 rc = bnxt_vnic_prep(bp, vnic);
1114                 if (rc)  {
1115                         rte_flow_error_set(error,
1116                                            EINVAL,
1117                                            RTE_FLOW_ERROR_TYPE_ACTION,
1118                                            act,
1119                                            "VNIC prep fail");
1120                         rc = -rte_errno;
1121                         goto ret;
1122                 }
1123
1124                 PMD_DRV_LOG(DEBUG,
1125                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1126                             act_q->index, vnic, vnic->fw_grp_ids);
1127
1128 use_vnic:
1129                 vnic->ff_pool_idx = vnic_id;
1130                 PMD_DRV_LOG(DEBUG,
1131                             "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1132                 filter->dst_id = vnic->fw_vnic_id;
1133                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1134                 if (filter1 == NULL) {
1135                         rte_flow_error_set(error,
1136                                            ENOSPC,
1137                                            RTE_FLOW_ERROR_TYPE_ACTION,
1138                                            act,
1139                                            "Filter not available");
1140                         rc = -rte_errno;
1141                         goto ret;
1142                 }
1143
1144                 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1145                             filter, filter1, filter1->l2_ref_cnt);
1146                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1147                 break;
1148         case RTE_FLOW_ACTION_TYPE_DROP:
1149                 vnic0 = &bp->vnic_info[0];
1150                 filter->dst_id = vnic0->fw_vnic_id;
1151                 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
1152                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1153                 if (filter1 == NULL) {
1154                         rte_flow_error_set(error,
1155                                            ENOSPC,
1156                                            RTE_FLOW_ERROR_TYPE_ACTION,
1157                                            act,
1158                                            "Filter not available");
1159                         rc = -rte_errno;
1160                         goto ret;
1161                 }
1162
1163                 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1164                         filter->flags =
1165                                 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1166                 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1167                         filter->flags =
1168                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1169
1170                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1171                 break;
1172         case RTE_FLOW_ACTION_TYPE_COUNT:
1173                 vnic0 = &bp->vnic_info[0];
1174                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1175                 if (filter1 == NULL) {
1176                         rte_flow_error_set(error,
1177                                            ENOSPC,
1178                                            RTE_FLOW_ERROR_TYPE_ACTION,
1179                                            act,
1180                                            "New filter not available");
1181                         rc = -rte_errno;
1182                         goto ret;
1183                 }
1184
1185                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1186                 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1187                 break;
1188         case RTE_FLOW_ACTION_TYPE_VF:
1189                 act_vf = (const struct rte_flow_action_vf *)act->conf;
1190                 vf = act_vf->id;
1191
1192                 if (filter->tunnel_type ==
1193                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1194                     filter->tunnel_type ==
1195                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1196                         /* If issued on a VF, ensure id is 0 and is trusted */
1197                         if (BNXT_VF(bp)) {
1198                                 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1199                                         rte_flow_error_set(error, EINVAL,
1200                                                 RTE_FLOW_ERROR_TYPE_ACTION,
1201                                                 act,
1202                                                 "Incorrect VF");
1203                                         rc = -rte_errno;
1204                                         goto ret;
1205                                 }
1206                         }
1207
1208                         filter->enables |= filter->tunnel_type;
1209                         filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1210                         goto done;
1211                 }
1212
1213                 if (vf >= bp->pdev->max_vfs) {
1214                         rte_flow_error_set(error,
1215                                            EINVAL,
1216                                            RTE_FLOW_ERROR_TYPE_ACTION,
1217                                            act,
1218                                            "Incorrect VF id!");
1219                         rc = -rte_errno;
1220                         goto ret;
1221                 }
1222
1223                 filter->mirror_vnic_id =
1224                 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1225                 if (dflt_vnic < 0) {
1226                         /* This simply indicates there's no driver loaded.
1227                          * This is not an error.
1228                          */
1229                         rte_flow_error_set(error,
1230                                            EINVAL,
1231                                            RTE_FLOW_ERROR_TYPE_ACTION,
1232                                            act,
1233                                            "Unable to get default VNIC for VF");
1234                         rc = -rte_errno;
1235                         goto ret;
1236                 }
1237
1238                 filter->mirror_vnic_id = dflt_vnic;
1239                 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1240
1241                 vnic0 = &bp->vnic_info[0];
1242                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1243                 if (filter1 == NULL) {
1244                         rte_flow_error_set(error,
1245                                            ENOSPC,
1246                                            RTE_FLOW_ERROR_TYPE_ACTION,
1247                                            act,
1248                                            "New filter not available");
1249                         rc = -rte_errno;
1250                         goto ret;
1251                 }
1252
1253                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1254                 break;
1255         case RTE_FLOW_ACTION_TYPE_RSS:
1256                 rss = (const struct rte_flow_action_rss *)act->conf;
1257
1258                 vnic_id = attr->group;
1259                 if (!vnic_id) {
1260                         PMD_DRV_LOG(ERR, "Group id cannot be 0\n");
1261                         rte_flow_error_set(error,
1262                                            EINVAL,
1263                                            RTE_FLOW_ERROR_TYPE_ATTR,
1264                                            NULL,
1265                                            "Group id cannot be 0");
1266                         rc = -rte_errno;
1267                         goto ret;
1268                 }
1269
1270                 vnic = &bp->vnic_info[vnic_id];
1271                 if (vnic == NULL) {
1272                         rte_flow_error_set(error,
1273                                            EINVAL,
1274                                            RTE_FLOW_ERROR_TYPE_ACTION,
1275                                            act,
1276                                            "No matching VNIC for RSS group.");
1277                         rc = -rte_errno;
1278                         goto ret;
1279                 }
1280                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1281
1282                 /* Check if requested RSS config matches RSS config of VNIC
1283                  * only if it is not a fresh VNIC configuration.
1284                  * Otherwise the existing VNIC configuration can be used.
1285                  */
1286                 if (vnic->rx_queue_cnt) {
1287                         rc = match_vnic_rss_cfg(bp, vnic, rss);
1288                         if (rc) {
1289                                 PMD_DRV_LOG(ERR,
1290                                             "VNIC and RSS config mismatch\n");
1291                                 rte_flow_error_set(error,
1292                                                    EINVAL,
1293                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1294                                                    act,
1295                                                    "VNIC and RSS cfg mismatch");
1296                                 rc = -rte_errno;
1297                                 goto ret;
1298                         }
1299                         goto vnic_found;
1300                 }
1301
1302                 for (i = 0; i < rss->queue_num; i++) {
1303                         PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1304                                     rss->queue[i]);
1305
1306                         if (!rss->queue[i] ||
1307                             rss->queue[i] >= bp->rx_nr_rings ||
1308                             !bp->rx_queues[rss->queue[i]]) {
1309                                 rte_flow_error_set(error,
1310                                                    EINVAL,
1311                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1312                                                    act,
1313                                                    "Invalid queue ID for RSS");
1314                                 rc = -rte_errno;
1315                                 goto ret;
1316                         }
1317                         rxq = bp->rx_queues[rss->queue[i]];
1318
1319                         if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1320                             INVALID_HW_RING_ID) {
1321                                 PMD_DRV_LOG(ERR,
1322                                             "queue active with other VNIC\n");
1323                                 rte_flow_error_set(error,
1324                                                    EINVAL,
1325                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1326                                                    act,
1327                                                    "Invalid queue ID for RSS");
1328                                 rc = -rte_errno;
1329                                 goto ret;
1330                         }
1331
1332                         rxq->vnic = vnic;
1333                         rxq->rx_started = 1;
1334                         vnic->rx_queue_cnt++;
1335                 }
1336
1337                 vnic->start_grp_id = rss->queue[0];
1338                 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1339                 vnic->func_default = 0; //This is not a default VNIC.
1340
1341                 rc = bnxt_vnic_prep(bp, vnic);
1342                 if (rc) {
1343                         rte_flow_error_set(error,
1344                                            EINVAL,
1345                                            RTE_FLOW_ERROR_TYPE_ACTION,
1346                                            act,
1347                                            "VNIC prep fail");
1348                         rc = -rte_errno;
1349                         goto ret;
1350                 }
1351
1352                 PMD_DRV_LOG(DEBUG,
1353                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1354                             vnic_id, vnic, vnic->fw_grp_ids);
1355
1356                 vnic->ff_pool_idx = vnic_id;
1357                 PMD_DRV_LOG(DEBUG,
1358                             "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1359
1360                 /* This can be done only after vnic_grp_alloc is done. */
1361                 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1362                         vnic->fw_grp_ids[i] =
1363                                 bp->grp_info[rss->queue[i]].fw_grp_id;
1364                         /* Make sure vnic0 does not use these rings. */
1365                         bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1366                                 INVALID_HW_RING_ID;
1367                 }
1368
1369                 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1370                         for (i = 0; i < vnic->rx_queue_cnt; i++)
1371                                 vnic->rss_table[rss_idx++] =
1372                                         vnic->fw_grp_ids[i];
1373                 }
1374
1375                 /* Configure RSS only if the queue count is > 1 */
1376                 if (vnic->rx_queue_cnt > 1) {
1377                         vnic->hash_type =
1378                                 bnxt_rte_to_hwrm_hash_types(rss->types);
1379
1380                         if (!rss->key_len) {
1381                                 /* If hash key has not been specified,
1382                                  * use random hash key.
1383                                  */
1384                                 prandom_bytes(vnic->rss_hash_key,
1385                                               HW_HASH_KEY_SIZE);
1386                         } else {
1387                                 if (rss->key_len > HW_HASH_KEY_SIZE)
1388                                         memcpy(vnic->rss_hash_key,
1389                                                rss->key,
1390                                                HW_HASH_KEY_SIZE);
1391                                 else
1392                                         memcpy(vnic->rss_hash_key,
1393                                                rss->key,
1394                                                rss->key_len);
1395                         }
1396                         bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1397                 } else {
1398                         PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1399                 }
1400
1401 vnic_found:
1402                 filter->dst_id = vnic->fw_vnic_id;
1403                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1404                 if (filter1 == NULL) {
1405                         rte_flow_error_set(error,
1406                                            ENOSPC,
1407                                            RTE_FLOW_ERROR_TYPE_ACTION,
1408                                            act,
1409                                            "New filter not available");
1410                         rc = -rte_errno;
1411                         goto ret;
1412                 }
1413
1414                 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1415                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1416                 break;
1417         default:
1418                 rte_flow_error_set(error,
1419                                    EINVAL,
1420                                    RTE_FLOW_ERROR_TYPE_ACTION,
1421                                    act,
1422                                    "Invalid action.");
1423                 rc = -rte_errno;
1424                 goto ret;
1425         }
1426
1427         if (filter1 && !filter->matching_l2_fltr_ptr) {
1428                 bnxt_free_filter(bp, filter1);
1429                 filter1->fw_l2_filter_id = -1;
1430         }
1431
1432 done:
1433         act = bnxt_flow_non_void_action(++act);
1434         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1435                 rte_flow_error_set(error,
1436                                    EINVAL,
1437                                    RTE_FLOW_ERROR_TYPE_ACTION,
1438                                    act,
1439                                    "Invalid action.");
1440                 rc = -rte_errno;
1441                 goto ret;
1442         }
1443
1444         return rc;
1445 ret:
1446
1447         //TODO: Cleanup according to ACTION TYPE.
1448         if (rte_errno)  {
1449                 if (vnic && STAILQ_EMPTY(&vnic->filter))
1450                         vnic->rx_queue_cnt = 0;
1451
1452                 if (rxq && !vnic->rx_queue_cnt)
1453                         rxq->vnic = &bp->vnic_info[0];
1454         }
1455         return rc;
1456 }
1457
1458 static
1459 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp,
1460                                           struct bnxt_filter_info *filter)
1461 {
1462         struct bnxt_vnic_info *vnic = NULL;
1463         unsigned int i;
1464
1465         for (i = 0; i < bp->max_vnics; i++) {
1466                 vnic = &bp->vnic_info[i];
1467                 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1468                     filter->dst_id == vnic->fw_vnic_id) {
1469                         PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n",
1470                                     vnic->ff_pool_idx);
1471                         return vnic;
1472                 }
1473         }
1474         return NULL;
1475 }
1476
1477 static int
1478 bnxt_flow_validate(struct rte_eth_dev *dev,
1479                    const struct rte_flow_attr *attr,
1480                    const struct rte_flow_item pattern[],
1481                    const struct rte_flow_action actions[],
1482                    struct rte_flow_error *error)
1483 {
1484         struct bnxt *bp = dev->data->dev_private;
1485         struct bnxt_vnic_info *vnic = NULL;
1486         struct bnxt_filter_info *filter;
1487         int ret = 0;
1488
1489         bnxt_acquire_flow_lock(bp);
1490         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1491         if (ret != 0) {
1492                 bnxt_release_flow_lock(bp);
1493                 return ret;
1494         }
1495
1496         filter = bnxt_get_unused_filter(bp);
1497         if (filter == NULL) {
1498                 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
1499                 bnxt_release_flow_lock(bp);
1500                 return -ENOMEM;
1501         }
1502
1503         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1504                                            error, filter);
1505         if (ret)
1506                 goto exit;
1507
1508         vnic = find_matching_vnic(bp, filter);
1509         if (vnic) {
1510                 if (STAILQ_EMPTY(&vnic->filter)) {
1511                         rte_free(vnic->fw_grp_ids);
1512                         bnxt_hwrm_vnic_ctx_free(bp, vnic);
1513                         bnxt_hwrm_vnic_free(bp, vnic);
1514                         vnic->rx_queue_cnt = 0;
1515                         PMD_DRV_LOG(DEBUG, "Free VNIC\n");
1516                 }
1517         }
1518
1519         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1520                 bnxt_hwrm_clear_em_filter(bp, filter);
1521         else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1522                 bnxt_hwrm_clear_ntuple_filter(bp, filter);
1523         else
1524                 bnxt_hwrm_clear_l2_filter(bp, filter);
1525
1526 exit:
1527         /* No need to hold on to this filter if we are just validating flow */
1528         filter->fw_l2_filter_id = UINT64_MAX;
1529         bnxt_free_filter(bp, filter);
1530         bnxt_release_flow_lock(bp);
1531
1532         return ret;
1533 }
1534
1535 static void
1536 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1537                    struct bnxt_filter_info *new_filter)
1538 {
1539         /* Clear the new L2 filter that was created in the previous step in
1540          * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1541          * filter which points to the new destination queue and so we clear
1542          * the previous L2 filter. For ntuple filters, we are going to reuse
1543          * the old L2 filter and create new NTUPLE filter with this new
1544          * destination queue subsequently during bnxt_flow_create.
1545          */
1546         if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1547                 bnxt_hwrm_clear_l2_filter(bp, old_filter);
1548                 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1549         } else {
1550                 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1551                         bnxt_hwrm_clear_em_filter(bp, old_filter);
1552                 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1553                         bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1554         }
1555 }
1556
1557 static int
1558 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1559 {
1560         struct bnxt_filter_info *mf;
1561         struct rte_flow *flow;
1562         int i;
1563
1564         for (i = bp->max_vnics - 1; i >= 0; i--) {
1565                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1566
1567                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1568                         continue;
1569
1570                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1571                         mf = flow->filter;
1572
1573                         if (mf->filter_type == nf->filter_type &&
1574                             mf->flags == nf->flags &&
1575                             mf->src_port == nf->src_port &&
1576                             mf->src_port_mask == nf->src_port_mask &&
1577                             mf->dst_port == nf->dst_port &&
1578                             mf->dst_port_mask == nf->dst_port_mask &&
1579                             mf->ip_protocol == nf->ip_protocol &&
1580                             mf->ip_addr_type == nf->ip_addr_type &&
1581                             mf->ethertype == nf->ethertype &&
1582                             mf->vni == nf->vni &&
1583                             mf->tunnel_type == nf->tunnel_type &&
1584                             mf->l2_ovlan == nf->l2_ovlan &&
1585                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1586                             mf->l2_ivlan == nf->l2_ivlan &&
1587                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1588                             !memcmp(mf->l2_addr, nf->l2_addr,
1589                                     RTE_ETHER_ADDR_LEN) &&
1590                             !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1591                                     RTE_ETHER_ADDR_LEN) &&
1592                             !memcmp(mf->src_macaddr, nf->src_macaddr,
1593                                     RTE_ETHER_ADDR_LEN) &&
1594                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1595                                     RTE_ETHER_ADDR_LEN) &&
1596                             !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1597                                     sizeof(nf->src_ipaddr)) &&
1598                             !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1599                                     sizeof(nf->src_ipaddr_mask)) &&
1600                             !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1601                                     sizeof(nf->dst_ipaddr)) &&
1602                             !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1603                                     sizeof(nf->dst_ipaddr_mask))) {
1604                                 if (mf->dst_id == nf->dst_id)
1605                                         return -EEXIST;
1606                                 /* Free the old filter, update flow
1607                                  * with new filter
1608                                  */
1609                                 bnxt_update_filter(bp, mf, nf);
1610                                 STAILQ_REMOVE(&vnic->filter, mf,
1611                                               bnxt_filter_info, next);
1612                                 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1613                                 bnxt_free_filter(bp, mf);
1614                                 flow->filter = nf;
1615                                 return -EXDEV;
1616                         }
1617                 }
1618         }
1619         return 0;
1620 }
1621
1622 static struct rte_flow *
1623 bnxt_flow_create(struct rte_eth_dev *dev,
1624                  const struct rte_flow_attr *attr,
1625                  const struct rte_flow_item pattern[],
1626                  const struct rte_flow_action actions[],
1627                  struct rte_flow_error *error)
1628 {
1629         struct bnxt *bp = dev->data->dev_private;
1630         struct bnxt_vnic_info *vnic = NULL;
1631         struct bnxt_filter_info *filter;
1632         bool update_flow = false;
1633         struct rte_flow *flow;
1634         int ret = 0;
1635         uint32_t tun_type;
1636
1637         if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1638                 rte_flow_error_set(error, EINVAL,
1639                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1640                                    "Failed to create flow, Not a Trusted VF!");
1641                 return NULL;
1642         }
1643
1644         if (!dev->data->dev_started) {
1645                 rte_flow_error_set(error,
1646                                    EINVAL,
1647                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1648                                    NULL,
1649                                    "Device must be started");
1650                 return NULL;
1651         }
1652
1653         flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1654         if (!flow) {
1655                 rte_flow_error_set(error, ENOMEM,
1656                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1657                                    "Failed to allocate memory");
1658                 return flow;
1659         }
1660
1661         bnxt_acquire_flow_lock(bp);
1662         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1663         if (ret != 0) {
1664                 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1665                 goto free_flow;
1666         }
1667
1668         filter = bnxt_get_unused_filter(bp);
1669         if (filter == NULL) {
1670                 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
1671                 goto free_flow;
1672         }
1673
1674         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1675                                            error, filter);
1676         if (ret != 0)
1677                 goto free_filter;
1678
1679         ret = bnxt_match_filter(bp, filter);
1680         if (ret == -EEXIST) {
1681                 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1682                 /* Clear the filter that was created as part of
1683                  * validate_and_parse_flow() above
1684                  */
1685                 bnxt_hwrm_clear_l2_filter(bp, filter);
1686                 goto free_filter;
1687         } else if (ret == -EXDEV) {
1688                 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1689                 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1690                 update_flow = true;
1691         }
1692
1693         /* If tunnel redirection to a VF/PF is specified then only tunnel_type
1694          * is set and enable is set to the tunnel type. Issue hwrm cmd directly
1695          * in such a case.
1696          */
1697         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1698             filter->enables == filter->tunnel_type) {
1699                 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1700                 if (ret) {
1701                         rte_flow_error_set(error, -ret,
1702                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1703                                            "Unable to query tunnel to VF");
1704                         goto free_filter;
1705                 }
1706                 if (tun_type == (1U << filter->tunnel_type)) {
1707                         ret =
1708                         bnxt_hwrm_tunnel_redirect_free(bp,
1709                                                        filter->tunnel_type);
1710                         if (ret) {
1711                                 PMD_DRV_LOG(ERR,
1712                                             "Unable to free existing tunnel\n");
1713                                 rte_flow_error_set(error, -ret,
1714                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1715                                                    NULL,
1716                                                    "Unable to free preexisting "
1717                                                    "tunnel on VF");
1718                                 goto free_filter;
1719                         }
1720                 }
1721                 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
1722                 if (ret) {
1723                         rte_flow_error_set(error, -ret,
1724                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1725                                            "Unable to redirect tunnel to VF");
1726                         goto free_filter;
1727                 }
1728                 vnic = &bp->vnic_info[0];
1729                 goto done;
1730         }
1731
1732         if (filter->filter_type == HWRM_CFA_EM_FILTER) {
1733                 filter->enables |=
1734                         HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1735                 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
1736         }
1737
1738         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
1739                 filter->enables |=
1740                         HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1741                 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
1742         }
1743
1744         vnic = find_matching_vnic(bp, filter);
1745 done:
1746         if (!ret || update_flow) {
1747                 flow->filter = filter;
1748                 flow->vnic = vnic;
1749                 if (update_flow) {
1750                         ret = -EXDEV;
1751                         goto free_flow;
1752                 }
1753
1754                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
1755                 PMD_DRV_LOG(ERR, "Successfully created flow.\n");
1756                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1757                 bnxt_release_flow_lock(bp);
1758                 return flow;
1759         }
1760
1761 free_filter:
1762         bnxt_free_filter(bp, filter);
1763 free_flow:
1764         if (ret == -EEXIST)
1765                 rte_flow_error_set(error, ret,
1766                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1767                                    "Matching Flow exists.");
1768         else if (ret == -EXDEV)
1769                 rte_flow_error_set(error, 0,
1770                                    RTE_FLOW_ERROR_TYPE_NONE, NULL,
1771                                    "Flow with pattern exists, updating destination queue");
1772         else
1773                 rte_flow_error_set(error, -ret,
1774                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1775                                    "Failed to create flow.");
1776         rte_free(flow);
1777         flow = NULL;
1778         bnxt_release_flow_lock(bp);
1779         return flow;
1780 }
1781
1782 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
1783                                                struct bnxt_filter_info *filter,
1784                                                struct rte_flow_error *error)
1785 {
1786         uint16_t tun_dst_fid;
1787         uint32_t tun_type;
1788         int ret = 0;
1789
1790         ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1791         if (ret) {
1792                 rte_flow_error_set(error, -ret,
1793                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1794                                    "Unable to query tunnel to VF");
1795                 return ret;
1796         }
1797         if (tun_type == (1U << filter->tunnel_type)) {
1798                 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
1799                                                      &tun_dst_fid);
1800                 if (ret) {
1801                         rte_flow_error_set(error, -ret,
1802                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1803                                            NULL,
1804                                            "tunnel_redirect info cmd fail");
1805                         return ret;
1806                 }
1807                 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
1808                             tun_dst_fid + bp->first_vf_id, bp->fw_fid);
1809
1810                 /* Tunnel doesn't belong to this VF, so don't send HWRM
1811                  * cmd, just delete the flow from driver
1812                  */
1813                 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id))
1814                         PMD_DRV_LOG(ERR,
1815                                     "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
1816                 else
1817                         ret = bnxt_hwrm_tunnel_redirect_free(bp,
1818                                                         filter->tunnel_type);
1819         }
1820         return ret;
1821 }
1822
1823 static int
1824 bnxt_flow_destroy(struct rte_eth_dev *dev,
1825                   struct rte_flow *flow,
1826                   struct rte_flow_error *error)
1827 {
1828         struct bnxt *bp = dev->data->dev_private;
1829         struct bnxt_filter_info *filter;
1830         struct bnxt_vnic_info *vnic;
1831         int ret = 0;
1832
1833         bnxt_acquire_flow_lock(bp);
1834         if (!flow) {
1835                 rte_flow_error_set(error, EINVAL,
1836                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1837                                    "Invalid flow: failed to destroy flow.");
1838                 bnxt_release_flow_lock(bp);
1839                 return -EINVAL;
1840         }
1841
1842         filter = flow->filter;
1843         vnic = flow->vnic;
1844
1845         if (!filter) {
1846                 rte_flow_error_set(error, EINVAL,
1847                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1848                                    "Invalid flow: failed to destroy flow.");
1849                 bnxt_release_flow_lock(bp);
1850                 return -EINVAL;
1851         }
1852
1853         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1854             filter->enables == filter->tunnel_type) {
1855                 ret = bnxt_handle_tunnel_redirect_destroy(bp,
1856                                                           filter,
1857                                                           error);
1858                 if (!ret) {
1859                         goto done;
1860                 } else {
1861                         bnxt_release_flow_lock(bp);
1862                         return ret;
1863                 }
1864         }
1865
1866         ret = bnxt_match_filter(bp, filter);
1867         if (ret == 0)
1868                 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
1869
1870         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1871                 ret = bnxt_hwrm_clear_em_filter(bp, filter);
1872         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1873                 ret = bnxt_hwrm_clear_ntuple_filter(bp, filter);
1874         ret = bnxt_hwrm_clear_l2_filter(bp, filter);
1875
1876 done:
1877         if (!ret) {
1878                 /* If it is a L2 drop filter, when the filter is created,
1879                  * the FW updates the BC/MC records.
1880                  * Once this filter is removed, issue the set_rx_mask command
1881                  * to reset the BC/MC records in the HW to the settings
1882                  * before the drop counter is created.
1883                  */
1884                 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
1885                         bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
1886
1887                 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
1888                 bnxt_free_filter(bp, filter);
1889                 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
1890                 rte_free(flow);
1891
1892                 /* If this was the last flow associated with this vnic,
1893                  * switch the queue back to RSS pool.
1894                  */
1895                 if (vnic && !vnic->func_default &&
1896                     STAILQ_EMPTY(&vnic->flow_list)) {
1897                         rte_free(vnic->fw_grp_ids);
1898                         if (vnic->rx_queue_cnt > 1)
1899                                 bnxt_hwrm_vnic_ctx_free(bp, vnic);
1900
1901                         bnxt_hwrm_vnic_free(bp, vnic);
1902                         vnic->rx_queue_cnt = 0;
1903                 }
1904         } else {
1905                 rte_flow_error_set(error, -ret,
1906                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1907                                    "Failed to destroy flow.");
1908         }
1909
1910         bnxt_release_flow_lock(bp);
1911         return ret;
1912 }
1913
1914 static int
1915 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1916 {
1917         struct bnxt *bp = dev->data->dev_private;
1918         struct bnxt_filter_info *filter = NULL;
1919         struct bnxt_vnic_info *vnic;
1920         struct rte_flow *flow;
1921         unsigned int i;
1922         int ret = 0;
1923
1924         bnxt_acquire_flow_lock(bp);
1925         for (i = 0; i < bp->max_vnics; i++) {
1926                 vnic = &bp->vnic_info[i];
1927                 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
1928                         continue;
1929
1930                 while (!STAILQ_EMPTY(&vnic->flow_list)) {
1931                         flow = STAILQ_FIRST(&vnic->flow_list);
1932                         filter = flow->filter;
1933
1934                         if (filter->filter_type ==
1935                             HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1936                             filter->enables == filter->tunnel_type) {
1937                                 ret =
1938                                 bnxt_handle_tunnel_redirect_destroy(bp,
1939                                                                     filter,
1940                                                                     error);
1941                                 if (!ret) {
1942                                         goto done;
1943                                 } else {
1944                                         bnxt_release_flow_lock(bp);
1945                                         return ret;
1946                                 }
1947                         }
1948
1949                         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1950                                 ret = bnxt_hwrm_clear_em_filter(bp, filter);
1951                         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1952                                 ret = bnxt_hwrm_clear_ntuple_filter(bp, filter);
1953                         else if (i)
1954                                 ret = bnxt_hwrm_clear_l2_filter(bp, filter);
1955
1956                         if (ret) {
1957                                 rte_flow_error_set
1958                                         (error,
1959                                          -ret,
1960                                          RTE_FLOW_ERROR_TYPE_HANDLE,
1961                                          NULL,
1962                                          "Failed to flush flow in HW.");
1963                                 bnxt_release_flow_lock(bp);
1964                                 return -rte_errno;
1965                         }
1966 done:
1967                         STAILQ_REMOVE(&vnic->flow_list, flow,
1968                                       rte_flow, next);
1969
1970                         STAILQ_REMOVE(&vnic->filter,
1971                                       filter,
1972                                       bnxt_filter_info,
1973                                       next);
1974                         bnxt_free_filter(bp, filter);
1975
1976                         rte_free(flow);
1977
1978                         /* If this was the last flow associated with this vnic,
1979                          * switch the queue back to RSS pool.
1980                          */
1981                         if (STAILQ_EMPTY(&vnic->flow_list)) {
1982                                 rte_free(vnic->fw_grp_ids);
1983                                 if (vnic->rx_queue_cnt > 1)
1984                                         bnxt_hwrm_vnic_ctx_free(bp, vnic);
1985                                 bnxt_hwrm_vnic_free(bp, vnic);
1986                                 vnic->rx_queue_cnt = 0;
1987                         }
1988                 }
1989         }
1990
1991         bnxt_release_flow_lock(bp);
1992         return ret;
1993 }
1994
1995 const struct rte_flow_ops bnxt_flow_ops = {
1996         .validate = bnxt_flow_validate,
1997         .create = bnxt_flow_create,
1998         .destroy = bnxt_flow_destroy,
1999         .flush = bnxt_flow_flush,
2000 };