drivers/net/bnxt/bnxt_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <sys/queue.h>
   7
   8 #include <rte_log.h>
   9 #include <rte_malloc.h>
  10 #include <rte_flow.h>
  11 #include <rte_flow_driver.h>
  12 #include <rte_tailq.h>
  13 #include <rte_alarm.h>
  14 #include <rte_cycles.h>
  15
  16 #include "bnxt.h"
  17 #include "bnxt_filter.h"
  18 #include "bnxt_hwrm.h"
  19 #include "bnxt_ring.h"
  20 #include "bnxt_rxq.h"
  21 #include "bnxt_rxr.h"
  22 #include "bnxt_vnic.h"
  23 #include "hsi_struct_def_dpdk.h"
  24
  25 static int
  26 bnxt_flow_args_validate(const struct rte_flow_attr *attr,
  27                         const struct rte_flow_item pattern[],
  28                         const struct rte_flow_action actions[],
  29                         struct rte_flow_error *error)
  30 {
  31         if (!pattern) {
  32                 rte_flow_error_set(error,
  33                                    EINVAL,
  34                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM,
  35                                    NULL,
  36                                    "NULL pattern.");
  37                 return -rte_errno;
  38         }
  39
  40         if (!actions) {
  41                 rte_flow_error_set(error,
  42                                    EINVAL,
  43                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
  44                                    NULL,
  45                                    "NULL action.");
  46                 return -rte_errno;
  47         }
  48
  49         if (!attr) {
  50                 rte_flow_error_set(error,
  51                                    EINVAL,
  52                                    RTE_FLOW_ERROR_TYPE_ATTR,
  53                                    NULL,
  54                                    "NULL attribute.");
  55                 return -rte_errno;
  56         }
  57
  58         return 0;
  59 }
  60
  61 static const struct rte_flow_item *
  62 bnxt_flow_non_void_item(const struct rte_flow_item *cur)
  63 {
  64         while (1) {
  65                 if (cur->type != RTE_FLOW_ITEM_TYPE_VOID)
  66                         return cur;
  67                 cur++;
  68         }
  69 }
  70
  71 static const struct rte_flow_action *
  72 bnxt_flow_non_void_action(const struct rte_flow_action *cur)
  73 {
  74         while (1) {
  75                 if (cur->type != RTE_FLOW_ACTION_TYPE_VOID)
  76                         return cur;
  77                 cur++;
  78         }
  79 }
  80
  81 static int
  82 bnxt_filter_type_check(const struct rte_flow_item pattern[],
  83                        struct rte_flow_error *error)
  84 {
  85         const struct rte_flow_item *item =
  86                 bnxt_flow_non_void_item(pattern);
  87         int use_ntuple = 1;
  88         bool has_vlan = 0;
  89
  90         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
  91                 switch (item->type) {
  92                 case RTE_FLOW_ITEM_TYPE_ANY:
  93                 case RTE_FLOW_ITEM_TYPE_ETH:
  94                         use_ntuple = 0;
  95                         break;
  96                 case RTE_FLOW_ITEM_TYPE_VLAN:
  97                         use_ntuple = 0;
  98                         has_vlan = 1;
  99                         break;
 100                 case RTE_FLOW_ITEM_TYPE_IPV4:
 101                 case RTE_FLOW_ITEM_TYPE_IPV6:
 102                 case RTE_FLOW_ITEM_TYPE_TCP:
 103                 case RTE_FLOW_ITEM_TYPE_UDP:
 104                         /* FALLTHROUGH */
 105                         /* need ntuple match, reset exact match */
 106                         use_ntuple |= 1;
 107                         break;
 108                 default:
 109                         PMD_DRV_LOG(DEBUG, "Unknown Flow type\n");
 110                         use_ntuple |= 0;
 111                 }
 112                 item++;
 113         }
 114
 115         if (has_vlan && use_ntuple) {
 116                 PMD_DRV_LOG(ERR,
 117                             "VLAN flow cannot use NTUPLE filter\n");
 118                 rte_flow_error_set(error, EINVAL,
 119                                    RTE_FLOW_ERROR_TYPE_ITEM,
 120                                    item,
 121                                    "Cannot use VLAN with NTUPLE");
 122                 return -rte_errno;
 123         }
 124
 125         return use_ntuple;
 126 }
 127
 128 static int
 129 bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 130                                   const struct rte_flow_attr *attr,
 131                                   const struct rte_flow_item pattern[],
 132                                   struct rte_flow_error *error,
 133                                   struct bnxt_filter_info *filter)
 134 {
 135         const struct rte_flow_item *item = bnxt_flow_non_void_item(pattern);
 136         const struct rte_flow_item_vlan *vlan_spec, *vlan_mask;
 137         const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
 138         const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
 139         const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
 140         const struct rte_flow_item_udp *udp_spec, *udp_mask;
 141         const struct rte_flow_item_eth *eth_spec, *eth_mask;
 142         const struct rte_ether_addr *dst, *src;
 143         const struct rte_flow_item_nvgre *nvgre_spec;
 144         const struct rte_flow_item_nvgre *nvgre_mask;
 145         const struct rte_flow_item_gre *gre_spec;
 146         const struct rte_flow_item_gre *gre_mask;
 147         const struct rte_flow_item_vxlan *vxlan_spec;
 148         const struct rte_flow_item_vxlan *vxlan_mask;
 149         uint8_t vni_mask[] = {0xFF, 0xFF, 0xFF};
 150         uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF};
 151         const struct rte_flow_item_vf *vf_spec;
 152         uint32_t tenant_id_be = 0, valid_flags = 0;
 153         bool vni_masked = 0;
 154         bool tni_masked = 0;
 155         uint32_t en_ethertype;
 156         uint8_t inner = 0;
 157         uint32_t vf = 0;
 158         uint32_t en = 0;
 159         int use_ntuple;
 160         int dflt_vnic;
 161
 162         use_ntuple = bnxt_filter_type_check(pattern, error);
 163         if (use_ntuple < 0)
 164                 return use_ntuple;
 165         PMD_DRV_LOG(DEBUG, "Use NTUPLE %d\n", use_ntuple);
 166
 167         filter->filter_type = use_ntuple ?
 168                 HWRM_CFA_NTUPLE_FILTER : HWRM_CFA_L2_FILTER;
 169         en_ethertype = use_ntuple ?
 170                 NTUPLE_FLTR_ALLOC_INPUT_EN_ETHERTYPE :
 171                 EM_FLOW_ALLOC_INPUT_EN_ETHERTYPE;
 172
 173         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
 174                 if (item->last) {
 175                         /* last or range is NOT supported as match criteria */
 176                         rte_flow_error_set(error, EINVAL,
 177                                            RTE_FLOW_ERROR_TYPE_ITEM,
 178                                            item,
 179                                            "No support for range");
 180                         return -rte_errno;
 181                 }
 182
 183                 switch (item->type) {
 184                 case RTE_FLOW_ITEM_TYPE_ANY:
 185                         inner =
 186                         ((const struct rte_flow_item_any *)item->spec)->num > 3;
 187                         if (inner)
 188                                 PMD_DRV_LOG(DEBUG, "Parse inner header\n");
 189                         break;
 190                 case RTE_FLOW_ITEM_TYPE_ETH:
 191                         if (!item->spec)
 192                                 break;
 193
 194                         eth_spec = item->spec;
 195
 196                         if (item->mask)
 197                                 eth_mask = item->mask;
 198                         else
 199                                 eth_mask = &rte_flow_item_eth_mask;
 200
 201                         /* Source MAC address mask cannot be partially set.
 202                          * Should be All 0's or all 1's.
 203                          * Destination MAC address mask must not be partially
 204                          * set. Should be all 1's or all 0's.
 205                          */
 206                         if ((!rte_is_zero_ether_addr(&eth_mask->src) &&
 207                              !rte_is_broadcast_ether_addr(&eth_mask->src)) ||
 208                             (!rte_is_zero_ether_addr(&eth_mask->dst) &&
 209                              !rte_is_broadcast_ether_addr(&eth_mask->dst))) {
 210                                 rte_flow_error_set(error,
 211                                                    EINVAL,
 212                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 213                                                    item,
 214                                                    "MAC_addr mask not valid");
 215                                 return -rte_errno;
 216                         }
 217
 218                         /* Mask is not allowed. Only exact matches are */
 219                         if (eth_mask->type &&
 220                             eth_mask->type != RTE_BE16(0xffff)) {
 221                                 rte_flow_error_set(error, EINVAL,
 222                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 223                                                    item,
 224                                                    "ethertype mask not valid");
 225                                 return -rte_errno;
 226                         }
 227
 228                         if (rte_is_broadcast_ether_addr(&eth_mask->dst)) {
 229                                 dst = &eth_spec->dst;
 230                                 if (!rte_is_valid_assigned_ether_addr(dst)) {
 231                                         rte_flow_error_set(error,
 232                                                            EINVAL,
 233                                                            RTE_FLOW_ERROR_TYPE_ITEM,
 234                                                            item,
 235                                                            "DMAC is invalid");
 236                                         PMD_DRV_LOG(ERR,
 237                                                     "DMAC is invalid!\n");
 238                                         return -rte_errno;
 239                                 }
 240                                 rte_memcpy(filter->dst_macaddr,
 241                                            &eth_spec->dst, RTE_ETHER_ADDR_LEN);
 242                                 en |= use_ntuple ?
 243                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_MACADDR :
 244                                         EM_FLOW_ALLOC_INPUT_EN_DST_MACADDR;
 245                                 valid_flags |= inner ?
 246                                         BNXT_FLOW_L2_INNER_DST_VALID_FLAG :
 247                                         BNXT_FLOW_L2_DST_VALID_FLAG;
 248                                 filter->priority = attr->priority;
 249                                 PMD_DRV_LOG(DEBUG,
 250                                             "Creating a priority flow\n");
 251                         }
 252                         if (rte_is_broadcast_ether_addr(&eth_mask->src)) {
 253                                 src = &eth_spec->src;
 254                                 if (!rte_is_valid_assigned_ether_addr(src)) {
 255                                         rte_flow_error_set(error,
 256                                                            EINVAL,
 257                                                            RTE_FLOW_ERROR_TYPE_ITEM,
 258                                                            item,
 259                                                            "SMAC is invalid");
 260                                         PMD_DRV_LOG(ERR,
 261                                                     "SMAC is invalid!\n");
 262                                         return -rte_errno;
 263                                 }
 264                                 rte_memcpy(filter->src_macaddr,
 265                                            &eth_spec->src, RTE_ETHER_ADDR_LEN);
 266                                 en |= use_ntuple ?
 267                                         NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR :
 268                                         EM_FLOW_ALLOC_INPUT_EN_SRC_MACADDR;
 269                                 valid_flags |= inner ?
 270                                         BNXT_FLOW_L2_INNER_SRC_VALID_FLAG :
 271                                         BNXT_FLOW_L2_SRC_VALID_FLAG;
 272                         } /*
 273                            * else {
 274                            *  PMD_DRV_LOG(ERR, "Handle this condition\n");
 275                            * }
 276                            */
 277                         if (eth_mask->type) {
 278                                 filter->ethertype =
 279                                         rte_be_to_cpu_16(eth_spec->type);
 280                                 en |= en_ethertype;
 281                         }
 282                         if (inner)
 283                                 valid_flags |= BNXT_FLOW_PARSE_INNER_FLAG;
 284
 285                         break;
 286                 case RTE_FLOW_ITEM_TYPE_VLAN:
 287                         vlan_spec = item->spec;
 288
 289                         if (item->mask)
 290                                 vlan_mask = item->mask;
 291                         else
 292                                 vlan_mask = &rte_flow_item_vlan_mask;
 293
 294                         if (en & en_ethertype) {
 295                                 rte_flow_error_set(error, EINVAL,
 296                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 297                                                    item,
 298                                                    "VLAN TPID matching is not"
 299                                                    " supported");
 300                                 return -rte_errno;
 301                         }
 302                         if (vlan_mask->tci &&
 303                             vlan_mask->tci == RTE_BE16(0x0fff)) {
 304                                 /* Only the VLAN ID can be matched. */
 305                                 filter->l2_ovlan =
 306                                         rte_be_to_cpu_16(vlan_spec->tci &
 307                                                          RTE_BE16(0x0fff));
 308                                 en |= EM_FLOW_ALLOC_INPUT_EN_OVLAN_VID;
 309                         } else {
 310                                 rte_flow_error_set(error,
 311                                                    EINVAL,
 312                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 313                                                    item,
 314                                                    "VLAN mask is invalid");
 315                                 return -rte_errno;
 316                         }
 317                         if (vlan_mask->inner_type &&
 318                             vlan_mask->inner_type != RTE_BE16(0xffff)) {
 319                                 rte_flow_error_set(error, EINVAL,
 320                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 321                                                    item,
 322                                                    "inner ethertype mask not"
 323                                                    " valid");
 324                                 return -rte_errno;
 325                         }
 326                         if (vlan_mask->inner_type) {
 327                                 filter->ethertype =
 328                                         rte_be_to_cpu_16(vlan_spec->inner_type);
 329                                 en |= en_ethertype;
 330                         }
 331
 332                         break;
 333                 case RTE_FLOW_ITEM_TYPE_IPV4:
 334                         /* If mask is not involved, we could use EM filters. */
 335                         ipv4_spec = item->spec;
 336
 337                         if (!item->spec)
 338                                 break;
 339
 340                         if (item->mask)
 341                                 ipv4_mask = item->mask;
 342                         else
 343                                 ipv4_mask = &rte_flow_item_ipv4_mask;
 344
 345                         /* Only IP DST and SRC fields are maskable. */
 346                         if (ipv4_mask->hdr.version_ihl ||
 347                             ipv4_mask->hdr.type_of_service ||
 348                             ipv4_mask->hdr.total_length ||
 349                             ipv4_mask->hdr.packet_id ||
 350                             ipv4_mask->hdr.fragment_offset ||
 351                             ipv4_mask->hdr.time_to_live ||
 352                             ipv4_mask->hdr.next_proto_id ||
 353                             ipv4_mask->hdr.hdr_checksum) {
 354                                 rte_flow_error_set(error,
 355                                                    EINVAL,
 356                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 357                                                    item,
 358                                                    "Invalid IPv4 mask.");
 359                                 return -rte_errno;
 360                         }
 361
 362                         filter->dst_ipaddr[0] = ipv4_spec->hdr.dst_addr;
 363                         filter->src_ipaddr[0] = ipv4_spec->hdr.src_addr;
 364
 365                         if (use_ntuple)
 366                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 367                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 368                         else
 369                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 370                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 371
 372                         if (ipv4_mask->hdr.src_addr) {
 373                                 filter->src_ipaddr_mask[0] =
 374                                         ipv4_mask->hdr.src_addr;
 375                                 en |= !use_ntuple ? 0 :
 376                                      NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 377                         }
 378
 379                         if (ipv4_mask->hdr.dst_addr) {
 380                                 filter->dst_ipaddr_mask[0] =
 381                                         ipv4_mask->hdr.dst_addr;
 382                                 en |= !use_ntuple ? 0 :
 383                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 384                         }
 385
 386                         filter->ip_addr_type = use_ntuple ?
 387                          HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_IP_ADDR_TYPE_IPV4 :
 388                          HWRM_CFA_EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV4;
 389
 390                         if (ipv4_spec->hdr.next_proto_id) {
 391                                 filter->ip_protocol =
 392                                         ipv4_spec->hdr.next_proto_id;
 393                                 if (use_ntuple)
 394                                         en |= NTUPLE_FLTR_ALLOC_IN_EN_IP_PROTO;
 395                                 else
 396                                         en |= EM_FLOW_ALLOC_INPUT_EN_IP_PROTO;
 397                         }
 398                         break;
 399                 case RTE_FLOW_ITEM_TYPE_IPV6:
 400                         ipv6_spec = item->spec;
 401
 402                         if (!item->spec)
 403                                 break;
 404
 405                         if (item->mask)
 406                                 ipv6_mask = item->mask;
 407                         else
 408                                 ipv6_mask = &rte_flow_item_ipv6_mask;
 409
 410                         /* Only IP DST and SRC fields are maskable. */
 411                         if (ipv6_mask->hdr.vtc_flow ||
 412                             ipv6_mask->hdr.payload_len ||
 413                             ipv6_mask->hdr.proto ||
 414                             ipv6_mask->hdr.hop_limits) {
 415                                 rte_flow_error_set(error,
 416                                                    EINVAL,
 417                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 418                                                    item,
 419                                                    "Invalid IPv6 mask.");
 420                                 return -rte_errno;
 421                         }
 422
 423                         if (use_ntuple)
 424                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
 425                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
 426                         else
 427                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
 428                                         EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
 429
 430                         rte_memcpy(filter->src_ipaddr,
 431                                    ipv6_spec->hdr.src_addr, 16);
 432                         rte_memcpy(filter->dst_ipaddr,
 433                                    ipv6_spec->hdr.dst_addr, 16);
 434
 435                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.src_addr,
 436                                                    16)) {
 437                                 rte_memcpy(filter->src_ipaddr_mask,
 438                                            ipv6_mask->hdr.src_addr, 16);
 439                                 en |= !use_ntuple ? 0 :
 440                                     NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
 441                         }
 442
 443                         if (!bnxt_check_zero_bytes(ipv6_mask->hdr.dst_addr,
 444                                                    16)) {
 445                                 rte_memcpy(filter->dst_ipaddr_mask,
 446                                            ipv6_mask->hdr.dst_addr, 16);
 447                                 en |= !use_ntuple ? 0 :
 448                                      NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
 449                         }
 450
 451                         filter->ip_addr_type = use_ntuple ?
 452                                 NTUPLE_FLTR_ALLOC_INPUT_IP_ADDR_TYPE_IPV6 :
 453                                 EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV6;
 454                         break;
 455                 case RTE_FLOW_ITEM_TYPE_TCP:
 456                         tcp_spec = item->spec;
 457
 458                         if (!item->spec)
 459                                 break;
 460
 461                         if (item->mask)
 462                                 tcp_mask = item->mask;
 463                         else
 464                                 tcp_mask = &rte_flow_item_tcp_mask;
 465
 466                         /* Check TCP mask. Only DST & SRC ports are maskable */
 467                         if (tcp_mask->hdr.sent_seq ||
 468                             tcp_mask->hdr.recv_ack ||
 469                             tcp_mask->hdr.data_off ||
 470                             tcp_mask->hdr.tcp_flags ||
 471                             tcp_mask->hdr.rx_win ||
 472                             tcp_mask->hdr.cksum ||
 473                             tcp_mask->hdr.tcp_urp) {
 474                                 rte_flow_error_set(error,
 475                                                    EINVAL,
 476                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 477                                                    item,
 478                                                    "Invalid TCP mask");
 479                                 return -rte_errno;
 480                         }
 481
 482                         filter->src_port = tcp_spec->hdr.src_port;
 483                         filter->dst_port = tcp_spec->hdr.dst_port;
 484
 485                         if (use_ntuple)
 486                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 487                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 488                         else
 489                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 490                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 491
 492                         if (tcp_mask->hdr.dst_port) {
 493                                 filter->dst_port_mask = tcp_mask->hdr.dst_port;
 494                                 en |= !use_ntuple ? 0 :
 495                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 496                         }
 497
 498                         if (tcp_mask->hdr.src_port) {
 499                                 filter->src_port_mask = tcp_mask->hdr.src_port;
 500                                 en |= !use_ntuple ? 0 :
 501                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 502                         }
 503                         break;
 504                 case RTE_FLOW_ITEM_TYPE_UDP:
 505                         udp_spec = item->spec;
 506
 507                         if (!item->spec)
 508                                 break;
 509
 510                         if (item->mask)
 511                                 udp_mask = item->mask;
 512                         else
 513                                 udp_mask = &rte_flow_item_udp_mask;
 514
 515                         if (udp_mask->hdr.dgram_len ||
 516                             udp_mask->hdr.dgram_cksum) {
 517                                 rte_flow_error_set(error,
 518                                                    EINVAL,
 519                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 520                                                    item,
 521                                                    "Invalid UDP mask");
 522                                 return -rte_errno;
 523                         }
 524
 525                         filter->src_port = udp_spec->hdr.src_port;
 526                         filter->dst_port = udp_spec->hdr.dst_port;
 527
 528                         if (use_ntuple)
 529                                 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
 530                                         NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
 531                         else
 532                                 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
 533                                         EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
 534
 535                         if (udp_mask->hdr.dst_port) {
 536                                 filter->dst_port_mask = udp_mask->hdr.dst_port;
 537                                 en |= !use_ntuple ? 0 :
 538                                   NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
 539                         }
 540
 541                         if (udp_mask->hdr.src_port) {
 542                                 filter->src_port_mask = udp_mask->hdr.src_port;
 543                                 en |= !use_ntuple ? 0 :
 544                                   NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
 545                         }
 546                         break;
 547                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 548                         vxlan_spec = item->spec;
 549                         vxlan_mask = item->mask;
 550                         /* Check if VXLAN item is used to describe protocol.
 551                          * If yes, both spec and mask should be NULL.
 552                          * If no, both spec and mask shouldn't be NULL.
 553                          */
 554                         if ((!vxlan_spec && vxlan_mask) ||
 555                             (vxlan_spec && !vxlan_mask)) {
 556                                 rte_flow_error_set(error,
 557                                                    EINVAL,
 558                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 559                                                    item,
 560                                                    "Invalid VXLAN item");
 561                                 return -rte_errno;
 562                         }
 563
 564                         if (!vxlan_spec && !vxlan_mask) {
 565                                 filter->tunnel_type =
 566                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 567                                 break;
 568                         }
 569
 570                         if (vxlan_spec->rsvd1 || vxlan_spec->rsvd0[0] ||
 571                             vxlan_spec->rsvd0[1] || vxlan_spec->rsvd0[2] ||
 572                             vxlan_spec->flags != 0x8) {
 573                                 rte_flow_error_set(error,
 574                                                    EINVAL,
 575                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 576                                                    item,
 577                                                    "Invalid VXLAN item");
 578                                 return -rte_errno;
 579                         }
 580
 581                         /* Check if VNI is masked. */
 582                         if (vxlan_mask != NULL) {
 583                                 vni_masked =
 584                                         !!memcmp(vxlan_mask->vni, vni_mask,
 585                                                  RTE_DIM(vni_mask));
 586                                 if (vni_masked) {
 587                                         rte_flow_error_set
 588                                                 (error,
 589                                                  EINVAL,
 590                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 591                                                  item,
 592                                                  "Invalid VNI mask");
 593                                         return -rte_errno;
 594                                 }
 595
 596                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 597                                            vxlan_spec->vni, 3);
 598                                 filter->vni =
 599                                         rte_be_to_cpu_32(tenant_id_be);
 600                                 filter->tunnel_type =
 601                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
 602                         }
 603                         break;
 604                 case RTE_FLOW_ITEM_TYPE_NVGRE:
 605                         nvgre_spec = item->spec;
 606                         nvgre_mask = item->mask;
 607                         /* Check if NVGRE item is used to describe protocol.
 608                          * If yes, both spec and mask should be NULL.
 609                          * If no, both spec and mask shouldn't be NULL.
 610                          */
 611                         if ((!nvgre_spec && nvgre_mask) ||
 612                             (nvgre_spec && !nvgre_mask)) {
 613                                 rte_flow_error_set(error,
 614                                                    EINVAL,
 615                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 616                                                    item,
 617                                                    "Invalid NVGRE item");
 618                                 return -rte_errno;
 619                         }
 620
 621                         if (!nvgre_spec && !nvgre_mask) {
 622                                 filter->tunnel_type =
 623                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 624                                 break;
 625                         }
 626
 627                         if (nvgre_spec->c_k_s_rsvd0_ver != 0x2000 ||
 628                             nvgre_spec->protocol != 0x6558) {
 629                                 rte_flow_error_set(error,
 630                                                    EINVAL,
 631                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 632                                                    item,
 633                                                    "Invalid NVGRE item");
 634                                 return -rte_errno;
 635                         }
 636
 637                         if (nvgre_spec && nvgre_mask) {
 638                                 tni_masked =
 639                                         !!memcmp(nvgre_mask->tni, tni_mask,
 640                                                  RTE_DIM(tni_mask));
 641                                 if (tni_masked) {
 642                                         rte_flow_error_set
 643                                                 (error,
 644                                                  EINVAL,
 645                                                  RTE_FLOW_ERROR_TYPE_ITEM,
 646                                                  item,
 647                                                  "Invalid TNI mask");
 648                                         return -rte_errno;
 649                                 }
 650                                 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 651                                            nvgre_spec->tni, 3);
 652                                 filter->vni =
 653                                         rte_be_to_cpu_32(tenant_id_be);
 654                                 filter->tunnel_type =
 655                                  CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
 656                         }
 657                         break;
 658
 659                 case RTE_FLOW_ITEM_TYPE_GRE:
 660                         gre_spec = (const struct rte_flow_item_gre *)item->spec;
 661                         gre_mask = (const struct rte_flow_item_gre *)item->mask;
 662
 663                         /*
 664                          *Check if GRE item is used to describe protocol.
 665                          * If yes, both spec and mask should be NULL.
 666                          * If no, both spec and mask shouldn't be NULL.
 667                          */
 668                         if (!!gre_spec ^ !!gre_mask) {
 669                                 rte_flow_error_set(error, EINVAL,
 670                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 671                                                    item,
 672                                                    "Invalid GRE item");
 673                                 return -rte_errno;
 674                         }
 675
 676                         if (!gre_spec && !gre_mask) {
 677                                 filter->tunnel_type =
 678                                 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE;
 679                                 break;
 680                         }
 681                         break;
 682
 683                 case RTE_FLOW_ITEM_TYPE_VF:
 684                         vf_spec = item->spec;
 685                         vf = vf_spec->id;
 686                         if (!BNXT_PF(bp)) {
 687                                 rte_flow_error_set(error,
 688                                                    EINVAL,
 689                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 690                                                    item,
 691                                                    "Configuring on a VF!");
 692                                 return -rte_errno;
 693                         }
 694
 695                         if (vf >= bp->pdev->max_vfs) {
 696                                 rte_flow_error_set(error,
 697                                                    EINVAL,
 698                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 699                                                    item,
 700                                                    "Incorrect VF id!");
 701                                 return -rte_errno;
 702                         }
 703
 704                         if (!attr->transfer) {
 705                                 rte_flow_error_set(error,
 706                                                    ENOTSUP,
 707                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 708                                                    item,
 709                                                    "Matching VF traffic without"
 710                                                    " affecting it (transfer attribute)"
 711                                                    " is unsupported");
 712                                 return -rte_errno;
 713                         }
 714
 715                         filter->mirror_vnic_id =
 716                         dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
 717                         if (dflt_vnic < 0) {
 718                                 /* This simply indicates there's no driver
 719                                  * loaded. This is not an error.
 720                                  */
 721                                 rte_flow_error_set
 722                                         (error,
 723                                          EINVAL,
 724                                          RTE_FLOW_ERROR_TYPE_ITEM,
 725                                          item,
 726                                          "Unable to get default VNIC for VF");
 727                                 return -rte_errno;
 728                         }
 729
 730                         filter->mirror_vnic_id = dflt_vnic;
 731                         en |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
 732                         break;
 733                 default:
 734                         break;
 735                 }
 736                 item++;
 737         }
 738         filter->enables = en;
 739         filter->valid_flags = valid_flags;
 740
 741         return 0;
 742 }
 743
 744 /* Parse attributes */
 745 static int
 746 bnxt_flow_parse_attr(const struct rte_flow_attr *attr,
 747                      struct rte_flow_error *error)
 748 {
 749         /* Must be input direction */
 750         if (!attr->ingress) {
 751                 rte_flow_error_set(error,
 752                                    EINVAL,
 753                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 754                                    attr,
 755                                    "Only support ingress.");
 756                 return -rte_errno;
 757         }
 758
 759         /* Not supported */
 760         if (attr->egress) {
 761                 rte_flow_error_set(error,
 762                                    EINVAL,
 763                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 764                                    attr,
 765                                    "No support for egress.");
 766                 return -rte_errno;
 767         }
 768
 769         return 0;
 770 }
 771
 772 static struct bnxt_filter_info *
 773 bnxt_find_matching_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
 774 {
 775         struct bnxt_filter_info *mf, *f0;
 776         struct bnxt_vnic_info *vnic0;
 777         int i;
 778
 779         vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
 780         f0 = STAILQ_FIRST(&vnic0->filter);
 781
 782         /* This flow has same DST MAC as the port/l2 filter. */
 783         if (memcmp(f0->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN) == 0)
 784                 return f0;
 785
 786         for (i = bp->max_vnics - 1; i >= 0; i--) {
 787                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
 788
 789                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
 790                         continue;
 791
 792                 STAILQ_FOREACH(mf, &vnic->filter, next) {
 793
 794                         if (mf->matching_l2_fltr_ptr)
 795                                 continue;
 796
 797                         if (mf->ethertype == nf->ethertype &&
 798                             mf->l2_ovlan == nf->l2_ovlan &&
 799                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
 800                             mf->l2_ivlan == nf->l2_ivlan &&
 801                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
 802                             !memcmp(mf->src_macaddr, nf->src_macaddr,
 803                                     RTE_ETHER_ADDR_LEN) &&
 804                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
 805                                     RTE_ETHER_ADDR_LEN))
 806                                 return mf;
 807                 }
 808         }
 809         return NULL;
 810 }
 811
 812 static struct bnxt_filter_info *
 813 bnxt_create_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 814                       struct bnxt_vnic_info *vnic)
 815 {
 816         struct bnxt_filter_info *filter1;
 817         int rc;
 818
 819         /* Alloc new L2 filter.
 820          * This flow needs MAC filter which does not match any existing
 821          * L2 filters.
 822          */
 823         filter1 = bnxt_get_unused_filter(bp);
 824         if (filter1 == NULL)
 825                 return NULL;
 826
 827         memcpy(filter1, nf, sizeof(*filter1));
 828
 829         filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_XDP_DISABLE;
 830         filter1->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
 831         if (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 832             nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG) {
 833                 filter1->flags |=
 834                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 835                 PMD_DRV_LOG(DEBUG, "Create Outer filter\n");
 836         }
 837
 838         if (nf->filter_type == HWRM_CFA_L2_FILTER &&
 839             (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
 840              nf->valid_flags & BNXT_FLOW_L2_INNER_SRC_VALID_FLAG)) {
 841                 PMD_DRV_LOG(DEBUG, "Create L2 filter for SRC MAC\n");
 842                 filter1->flags |=
 843                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_SOURCE_VALID;
 844                 memcpy(filter1->l2_addr, nf->src_macaddr, RTE_ETHER_ADDR_LEN);
 845         } else {
 846                 PMD_DRV_LOG(DEBUG, "Create L2 filter for DST MAC\n");
 847                 memcpy(filter1->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN);
 848         }
 849
 850         if (nf->priority &&
 851             (nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG ||
 852              nf->valid_flags & BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 853                 /* Tell the FW where to place the filter in the table. */
 854                 if (nf->priority > 65535) {
 855                         filter1->pri_hint =
 856                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_PRI_HINT_BELOW_FILTER;
 857                         /* This will place the filter in TCAM */
 858                         filter1->l2_filter_id_hint = (uint64_t)-1;
 859                 }
 860         }
 861
 862         if (nf->valid_flags & (BNXT_FLOW_L2_DST_VALID_FLAG |
 863                                BNXT_FLOW_L2_SRC_VALID_FLAG |
 864                                BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
 865                                BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
 866                 filter1->enables =
 867                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
 868                         L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;
 869                 memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
 870         }
 871
 872         if (nf->valid_flags & BNXT_FLOW_L2_DROP_FLAG) {
 873                 filter1->flags |=
 874                         HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_DROP;
 875                 if (nf->ethertype == RTE_ETHER_TYPE_IPV4) {
 876                         /* Num VLANs for drop filter will/should be 0.
 877                          * If the req is memset to 0, then the count will
 878                          * be automatically set to 0.
 879                          */
 880                         if (nf->valid_flags & BNXT_FLOW_PARSE_INNER_FLAG) {
 881                                 filter1->enables |=
 882                                         L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS;
 883                         } else {
 884                                 filter1->enables |=
 885                                         L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS;
 886                                 filter1->flags |=
 887                                 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 888                         }
 889                 }
 890         }
 891
 892         rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id,
 893                                      filter1);
 894         if (rc) {
 895                 bnxt_free_filter(bp, filter1);
 896                 return NULL;
 897         }
 898         return filter1;
 899 }
 900
 901 struct bnxt_filter_info *
 902 bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 903                    struct bnxt_vnic_info *vnic)
 904 {
 905         struct bnxt_filter_info *l2_filter = NULL;
 906
 907         l2_filter = bnxt_find_matching_l2_filter(bp, nf);
 908         if (l2_filter) {
 909                 l2_filter->l2_ref_cnt++;
 910         } else {
 911                 l2_filter = bnxt_create_l2_filter(bp, nf, vnic);
 912                 if (l2_filter) {
 913                         STAILQ_INSERT_TAIL(&vnic->filter, l2_filter, next);
 914                         l2_filter->vnic = vnic;
 915                 }
 916         }
 917         nf->matching_l2_fltr_ptr = l2_filter;
 918
 919         return l2_filter;
 920 }
 921
 922 static int bnxt_vnic_prep(struct bnxt *bp, struct bnxt_vnic_info *vnic,
 923                           const struct rte_flow_action *act,
 924                           struct rte_flow_error *error)
 925 {
 926         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 927         uint64_t rx_offloads = dev_conf->rxmode.offloads;
 928         int rc;
 929
 930         if (bp->nr_vnics > bp->max_vnics - 1)
 931                 return rte_flow_error_set(error, EINVAL,
 932                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 933                                           NULL,
 934                                           "Group id is invalid");
 935
 936         rc = bnxt_vnic_grp_alloc(bp, vnic);
 937         if (rc)
 938                 return rte_flow_error_set(error, -rc,
 939                                           RTE_FLOW_ERROR_TYPE_ACTION,
 940                                           act,
 941                                           "Failed to alloc VNIC group");
 942
 943         rc = bnxt_hwrm_vnic_alloc(bp, vnic);
 944         if (rc) {
 945                 rte_flow_error_set(error, -rc,
 946                                    RTE_FLOW_ERROR_TYPE_ACTION,
 947                                    act,
 948                                    "Failed to alloc VNIC");
 949                 goto ret;
 950         }
 951
 952         bp->nr_vnics++;
 953
 954         /* RSS context is required only when there is more than one RSS ring */
 955         if (vnic->rx_queue_cnt > 1) {
 956                 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0);
 957                 if (rc) {
 958                         rte_flow_error_set(error, -rc,
 959                                            RTE_FLOW_ERROR_TYPE_ACTION,
 960                                            act,
 961                                            "Failed to alloc VNIC context");
 962                         goto ret;
 963                 }
 964         }
 965
 966         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 967                 vnic->vlan_strip = true;
 968         else
 969                 vnic->vlan_strip = false;
 970
 971         rc = bnxt_hwrm_vnic_cfg(bp, vnic);
 972         if (rc) {
 973                 rte_flow_error_set(error, -rc,
 974                                    RTE_FLOW_ERROR_TYPE_ACTION,
 975                                    act,
 976                                    "Failed to configure VNIC");
 977                 goto ret;
 978         }
 979
 980         rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
 981         if (rc) {
 982                 rte_flow_error_set(error, -rc,
 983                                    RTE_FLOW_ERROR_TYPE_ACTION,
 984                                    act,
 985                                    "Failed to configure VNIC plcmode");
 986                 goto ret;
 987         }
 988
 989         return 0;
 990
 991 ret:
 992         return rc;
 993 }
 994
 995 static int match_vnic_rss_cfg(struct bnxt *bp,
 996                               struct bnxt_vnic_info *vnic,
 997                               const struct rte_flow_action_rss *rss)
 998 {
 999         unsigned int match = 0, i;
1000
1001         if (vnic->rx_queue_cnt != rss->queue_num)
1002                 return -EINVAL;
1003
1004         for (i = 0; i < rss->queue_num; i++) {
1005                 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt &&
1006                     !bp->rx_queues[rss->queue[i]]->rx_started)
1007                         return -EINVAL;
1008         }
1009
1010         for (i = 0; i < vnic->rx_queue_cnt; i++) {
1011                 int j;
1012
1013                 for (j = 0; j < vnic->rx_queue_cnt; j++) {
1014                         if (bp->grp_info[rss->queue[i]].fw_grp_id ==
1015                             vnic->fw_grp_ids[j])
1016                                 match++;
1017                 }
1018         }
1019
1020         if (match != vnic->rx_queue_cnt) {
1021                 PMD_DRV_LOG(ERR,
1022                             "VNIC queue count %d vs queues matched %d\n",
1023                             match, vnic->rx_queue_cnt);
1024                 return -EINVAL;
1025         }
1026
1027         return 0;
1028 }
1029
1030 static void
1031 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
1032                             struct bnxt_filter_info *filter1,
1033                             int use_ntuple)
1034 {
1035         if (!use_ntuple &&
1036             !(filter->valid_flags &
1037               ~(BNXT_FLOW_L2_DST_VALID_FLAG |
1038                 BNXT_FLOW_L2_SRC_VALID_FLAG |
1039                 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
1040                 BNXT_FLOW_L2_INNER_DST_VALID_FLAG |
1041                 BNXT_FLOW_L2_DROP_FLAG |
1042                 BNXT_FLOW_PARSE_INNER_FLAG))) {
1043                 filter->flags = filter1->flags;
1044                 filter->enables = filter1->enables;
1045                 filter->filter_type = HWRM_CFA_L2_FILTER;
1046                 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN);
1047                 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
1048                 filter->pri_hint = filter1->pri_hint;
1049                 filter->l2_filter_id_hint = filter1->l2_filter_id_hint;
1050         }
1051         filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1052         filter->l2_ref_cnt = filter1->l2_ref_cnt;
1053         filter->flow_id = filter1->flow_id;
1054         PMD_DRV_LOG(DEBUG,
1055                 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
1056                 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
1057 }
1058
1059 static int
1060 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
1061                              const struct rte_flow_item pattern[],
1062                              const struct rte_flow_action actions[],
1063                              const struct rte_flow_attr *attr,
1064                              struct rte_flow_error *error,
1065                              struct bnxt_filter_info *filter)
1066 {
1067         const struct rte_flow_action *act =
1068                 bnxt_flow_non_void_action(actions);
1069         struct bnxt *bp = dev->data->dev_private;
1070         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
1071         struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL;
1072         const struct rte_flow_action_queue *act_q;
1073         const struct rte_flow_action_vf *act_vf;
1074         struct bnxt_filter_info *filter1 = NULL;
1075         const struct rte_flow_action_rss *rss;
1076         struct bnxt_rx_queue *rxq = NULL;
1077         int dflt_vnic, vnic_id;
1078         unsigned int rss_idx;
1079         uint32_t vf = 0, i;
1080         int rc, use_ntuple;
1081
1082         rc =
1083         bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
1084         if (rc != 0)
1085                 goto ret;
1086
1087         rc = bnxt_flow_parse_attr(attr, error);
1088         if (rc != 0)
1089                 goto ret;
1090
1091         /* Since we support ingress attribute only - right now. */
1092         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1093                 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
1094
1095         use_ntuple = bnxt_filter_type_check(pattern, error);
1096
1097 start:
1098         switch (act->type) {
1099         case RTE_FLOW_ACTION_TYPE_QUEUE:
1100                 /* Allow this flow. Redirect to a VNIC. */
1101                 act_q = (const struct rte_flow_action_queue *)act->conf;
1102                 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
1103                         rte_flow_error_set(error,
1104                                            EINVAL,
1105                                            RTE_FLOW_ERROR_TYPE_ACTION,
1106                                            act,
1107                                            "Invalid queue ID.");
1108                         rc = -rte_errno;
1109                         goto ret;
1110                 }
1111                 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
1112
1113                 if (use_ntuple && !BNXT_RFS_NEEDS_VNIC(bp)) {
1114                         filter->flags =
1115                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DEST_RFS_RING_IDX;
1116                         filter->dst_id = act_q->index;
1117                         goto skip_vnic_alloc;
1118                 }
1119
1120                 vnic_id = attr->group;
1121                 if (!vnic_id) {
1122                         PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1123                         vnic_id = act_q->index;
1124                 }
1125
1126                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1127
1128                 vnic = &bp->vnic_info[vnic_id];
1129                 if (vnic->rx_queue_cnt) {
1130                         if (vnic->start_grp_id != act_q->index) {
1131                                 PMD_DRV_LOG(ERR,
1132                                             "VNIC already in use\n");
1133                                 rte_flow_error_set(error,
1134                                                    EINVAL,
1135                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1136                                                    act,
1137                                                    "VNIC already in use");
1138                                 rc = -rte_errno;
1139                                 goto ret;
1140                         }
1141                         goto use_vnic;
1142                 }
1143
1144                 rxq = bp->rx_queues[act_q->index];
1145
1146                 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1147                     vnic->fw_vnic_id != INVALID_HW_RING_ID)
1148                         goto use_vnic;
1149
1150                 if (!rxq) {
1151                         PMD_DRV_LOG(ERR,
1152                                     "Queue invalid or used with other VNIC\n");
1153                         rte_flow_error_set(error,
1154                                            EINVAL,
1155                                            RTE_FLOW_ERROR_TYPE_ACTION,
1156                                            act,
1157                                            "Queue invalid queue or in use");
1158                         rc = -rte_errno;
1159                         goto ret;
1160                 }
1161
1162                 rxq->vnic = vnic;
1163                 rxq->rx_started = 1;
1164                 vnic->rx_queue_cnt++;
1165                 vnic->start_grp_id = act_q->index;
1166                 vnic->end_grp_id = act_q->index;
1167                 vnic->func_default = 0; //This is not a default VNIC.
1168
1169                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1170
1171                 rc = bnxt_vnic_prep(bp, vnic, act, error);
1172                 if (rc)
1173                         goto ret;
1174
1175                 PMD_DRV_LOG(DEBUG,
1176                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1177                             act_q->index, vnic, vnic->fw_grp_ids);
1178
1179 use_vnic:
1180                 vnic->ff_pool_idx = vnic_id;
1181                 PMD_DRV_LOG(DEBUG,
1182                             "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1183                 filter->dst_id = vnic->fw_vnic_id;
1184 skip_vnic_alloc:
1185                 /* For ntuple filter, create the L2 filter with default VNIC.
1186                  * The user specified redirect queue will be set while creating
1187                  * the ntuple filter in hardware.
1188                  */
1189                 vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
1190                 if (use_ntuple)
1191                         filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1192                 else
1193                         filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1194                 if (filter1 == NULL) {
1195                         rte_flow_error_set(error,
1196                                            ENOSPC,
1197                                            RTE_FLOW_ERROR_TYPE_ACTION,
1198                                            act,
1199                                            "Filter not available");
1200                         rc = -rte_errno;
1201                         goto ret;
1202                 }
1203
1204                 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1205                             filter, filter1, filter1->l2_ref_cnt);
1206                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1207                 break;
1208         case RTE_FLOW_ACTION_TYPE_DROP:
1209                 vnic0 = &bp->vnic_info[0];
1210                 filter->dst_id = vnic0->fw_vnic_id;
1211                 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
1212                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1213                 if (filter1 == NULL) {
1214                         rte_flow_error_set(error,
1215                                            ENOSPC,
1216                                            RTE_FLOW_ERROR_TYPE_ACTION,
1217                                            act,
1218                                            "Filter not available");
1219                         rc = -rte_errno;
1220                         goto ret;
1221                 }
1222
1223                 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1224                         filter->flags =
1225                                 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1226                 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1227                         filter->flags =
1228                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1229
1230                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1231                 break;
1232         case RTE_FLOW_ACTION_TYPE_COUNT:
1233                 vnic0 = &bp->vnic_info[0];
1234                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1235                 if (filter1 == NULL) {
1236                         rte_flow_error_set(error,
1237                                            ENOSPC,
1238                                            RTE_FLOW_ERROR_TYPE_ACTION,
1239                                            act,
1240                                            "New filter not available");
1241                         rc = -rte_errno;
1242                         goto ret;
1243                 }
1244
1245                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1246                 filter->flow_id = filter1->flow_id;
1247                 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1248                 break;
1249         case RTE_FLOW_ACTION_TYPE_VF:
1250                 act_vf = (const struct rte_flow_action_vf *)act->conf;
1251                 vf = act_vf->id;
1252
1253                 if (filter->tunnel_type ==
1254                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1255                     filter->tunnel_type ==
1256                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1257                         /* If issued on a VF, ensure id is 0 and is trusted */
1258                         if (BNXT_VF(bp)) {
1259                                 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1260                                         rte_flow_error_set(error, EINVAL,
1261                                                 RTE_FLOW_ERROR_TYPE_ACTION,
1262                                                 act,
1263                                                 "Incorrect VF");
1264                                         rc = -rte_errno;
1265                                         goto ret;
1266                                 }
1267                         }
1268
1269                         filter->enables |= filter->tunnel_type;
1270                         filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1271                         goto done;
1272                 }
1273
1274                 if (vf >= bp->pdev->max_vfs) {
1275                         rte_flow_error_set(error,
1276                                            EINVAL,
1277                                            RTE_FLOW_ERROR_TYPE_ACTION,
1278                                            act,
1279                                            "Incorrect VF id!");
1280                         rc = -rte_errno;
1281                         goto ret;
1282                 }
1283
1284                 filter->mirror_vnic_id =
1285                 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1286                 if (dflt_vnic < 0) {
1287                         /* This simply indicates there's no driver loaded.
1288                          * This is not an error.
1289                          */
1290                         rte_flow_error_set(error,
1291                                            EINVAL,
1292                                            RTE_FLOW_ERROR_TYPE_ACTION,
1293                                            act,
1294                                            "Unable to get default VNIC for VF");
1295                         rc = -rte_errno;
1296                         goto ret;
1297                 }
1298
1299                 filter->mirror_vnic_id = dflt_vnic;
1300                 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1301
1302                 vnic0 = &bp->vnic_info[0];
1303                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1304                 if (filter1 == NULL) {
1305                         rte_flow_error_set(error,
1306                                            ENOSPC,
1307                                            RTE_FLOW_ERROR_TYPE_ACTION,
1308                                            act,
1309                                            "New filter not available");
1310                         rc = -rte_errno;
1311                         goto ret;
1312                 }
1313
1314                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1315                 filter->flow_id = filter1->flow_id;
1316                 break;
1317         case RTE_FLOW_ACTION_TYPE_RSS:
1318                 rss = (const struct rte_flow_action_rss *)act->conf;
1319
1320                 vnic_id = attr->group;
1321
1322                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1323                 vnic = &bp->vnic_info[vnic_id];
1324
1325                 /* Check if requested RSS config matches RSS config of VNIC
1326                  * only if it is not a fresh VNIC configuration.
1327                  * Otherwise the existing VNIC configuration can be used.
1328                  */
1329                 if (vnic->rx_queue_cnt) {
1330                         rc = match_vnic_rss_cfg(bp, vnic, rss);
1331                         if (rc) {
1332                                 PMD_DRV_LOG(ERR,
1333                                             "VNIC and RSS config mismatch\n");
1334                                 rte_flow_error_set(error,
1335                                                    EINVAL,
1336                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1337                                                    act,
1338                                                    "VNIC and RSS cfg mismatch");
1339                                 rc = -rte_errno;
1340                                 goto ret;
1341                         }
1342                         goto vnic_found;
1343                 }
1344
1345                 for (i = 0; i < rss->queue_num; i++) {
1346                         PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1347                                     rss->queue[i]);
1348
1349                         if (!rss->queue[i] ||
1350                             rss->queue[i] >= bp->rx_nr_rings ||
1351                             !bp->rx_queues[rss->queue[i]]) {
1352                                 rte_flow_error_set(error,
1353                                                    EINVAL,
1354                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1355                                                    act,
1356                                                    "Invalid queue ID for RSS");
1357                                 rc = -rte_errno;
1358                                 goto ret;
1359                         }
1360                         rxq = bp->rx_queues[rss->queue[i]];
1361
1362                         if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1363                             INVALID_HW_RING_ID) {
1364                                 PMD_DRV_LOG(ERR,
1365                                             "queue active with other VNIC\n");
1366                                 rte_flow_error_set(error,
1367                                                    EINVAL,
1368                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1369                                                    act,
1370                                                    "Invalid queue ID for RSS");
1371                                 rc = -rte_errno;
1372                                 goto ret;
1373                         }
1374
1375                         rxq->vnic = vnic;
1376                         rxq->rx_started = 1;
1377                         vnic->rx_queue_cnt++;
1378                 }
1379
1380                 vnic->start_grp_id = rss->queue[0];
1381                 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1382                 vnic->func_default = 0; //This is not a default VNIC.
1383
1384                 rc = bnxt_vnic_prep(bp, vnic, act, error);
1385                 if (rc)
1386                         goto ret;
1387
1388                 PMD_DRV_LOG(DEBUG,
1389                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1390                             vnic_id, vnic, vnic->fw_grp_ids);
1391
1392                 vnic->ff_pool_idx = vnic_id;
1393                 PMD_DRV_LOG(DEBUG,
1394                             "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1395
1396                 /* This can be done only after vnic_grp_alloc is done. */
1397                 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1398                         vnic->fw_grp_ids[i] =
1399                                 bp->grp_info[rss->queue[i]].fw_grp_id;
1400                         /* Make sure vnic0 does not use these rings. */
1401                         bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1402                                 INVALID_HW_RING_ID;
1403                 }
1404
1405                 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1406                         for (i = 0; i < vnic->rx_queue_cnt; i++)
1407                                 vnic->rss_table[rss_idx++] =
1408                                         vnic->fw_grp_ids[i];
1409                 }
1410
1411                 /* Configure RSS only if the queue count is > 1 */
1412                 if (vnic->rx_queue_cnt > 1) {
1413                         vnic->hash_type =
1414                                 bnxt_rte_to_hwrm_hash_types(rss->types);
1415                         vnic->hash_mode =
1416                         bnxt_rte_to_hwrm_hash_level(bp, rss->types, rss->level);
1417
1418                         if (!rss->key_len) {
1419                                 /* If hash key has not been specified,
1420                                  * use random hash key.
1421                                  */
1422                                 bnxt_prandom_bytes(vnic->rss_hash_key,
1423                                                    HW_HASH_KEY_SIZE);
1424                         } else {
1425                                 if (rss->key_len > HW_HASH_KEY_SIZE)
1426                                         memcpy(vnic->rss_hash_key,
1427                                                rss->key,
1428                                                HW_HASH_KEY_SIZE);
1429                                 else
1430                                         memcpy(vnic->rss_hash_key,
1431                                                rss->key,
1432                                                rss->key_len);
1433                         }
1434                         bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1435                 } else {
1436                         PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1437                 }
1438
1439 vnic_found:
1440                 filter->dst_id = vnic->fw_vnic_id;
1441                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1442                 if (filter1 == NULL) {
1443                         rte_flow_error_set(error,
1444                                            ENOSPC,
1445                                            RTE_FLOW_ERROR_TYPE_ACTION,
1446                                            act,
1447                                            "New filter not available");
1448                         rc = -rte_errno;
1449                         goto ret;
1450                 }
1451
1452                 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1453                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1454                 break;
1455         case RTE_FLOW_ACTION_TYPE_MARK:
1456                 if (bp->mark_table == NULL) {
1457                         rte_flow_error_set(error,
1458                                            ENOMEM,
1459                                            RTE_FLOW_ERROR_TYPE_ACTION,
1460                                            act,
1461                                            "Mark table not allocated.");
1462                         rc = -rte_errno;
1463                         goto ret;
1464                 }
1465
1466                 if (bp->flags & BNXT_FLAG_RX_VECTOR_PKT_MODE) {
1467                         PMD_DRV_LOG(DEBUG,
1468                                     "Disabling vector processing for mark\n");
1469                         bp->eth_dev->rx_pkt_burst = bnxt_recv_pkts;
1470                         bp->flags &= ~BNXT_FLAG_RX_VECTOR_PKT_MODE;
1471                 }
1472
1473                 filter->valid_flags |= BNXT_FLOW_MARK_FLAG;
1474                 filter->mark = ((const struct rte_flow_action_mark *)
1475                                 act->conf)->id;
1476                 PMD_DRV_LOG(DEBUG, "Mark the flow %d\n", filter->mark);
1477                 break;
1478         default:
1479                 rte_flow_error_set(error,
1480                                    EINVAL,
1481                                    RTE_FLOW_ERROR_TYPE_ACTION,
1482                                    act,
1483                                    "Invalid action.");
1484                 rc = -rte_errno;
1485                 goto ret;
1486         }
1487
1488 done:
1489         act = bnxt_flow_non_void_action(++act);
1490         while (act->type != RTE_FLOW_ACTION_TYPE_END)
1491                 goto start;
1492
1493         return rc;
1494 ret:
1495
1496         if (filter1) {
1497                 bnxt_hwrm_clear_l2_filter(bp, filter1);
1498                 bnxt_free_filter(bp, filter1);
1499         }
1500
1501         if (rte_errno)  {
1502                 if (vnic && STAILQ_EMPTY(&vnic->filter))
1503                         vnic->rx_queue_cnt = 0;
1504
1505                 if (rxq && !vnic->rx_queue_cnt)
1506                         rxq->vnic = &bp->vnic_info[0];
1507         }
1508         return -rte_errno;
1509 }
1510
1511 static
1512 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp,
1513                                           struct bnxt_filter_info *filter)
1514 {
1515         struct bnxt_vnic_info *vnic = NULL;
1516         unsigned int i;
1517
1518         for (i = 0; i < bp->max_vnics; i++) {
1519                 vnic = &bp->vnic_info[i];
1520                 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1521                     filter->dst_id == vnic->fw_vnic_id) {
1522                         PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n",
1523                                     vnic->ff_pool_idx);
1524                         return vnic;
1525                 }
1526         }
1527         return NULL;
1528 }
1529
1530 static int
1531 bnxt_flow_validate(struct rte_eth_dev *dev,
1532                    const struct rte_flow_attr *attr,
1533                    const struct rte_flow_item pattern[],
1534                    const struct rte_flow_action actions[],
1535                    struct rte_flow_error *error)
1536 {
1537         struct bnxt *bp = dev->data->dev_private;
1538         struct bnxt_vnic_info *vnic = NULL;
1539         struct bnxt_filter_info *filter;
1540         int ret = 0;
1541
1542         bnxt_acquire_flow_lock(bp);
1543         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1544         if (ret != 0) {
1545                 bnxt_release_flow_lock(bp);
1546                 return ret;
1547         }
1548
1549         filter = bnxt_get_unused_filter(bp);
1550         if (filter == NULL) {
1551                 rte_flow_error_set(error, ENOSPC,
1552                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1553                                    "Not enough resources for a new flow");
1554                 bnxt_release_flow_lock(bp);
1555                 return -ENOSPC;
1556         }
1557
1558         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1559                                            error, filter);
1560         if (ret)
1561                 goto exit;
1562
1563         vnic = find_matching_vnic(bp, filter);
1564         if (vnic) {
1565                 if (STAILQ_EMPTY(&vnic->filter)) {
1566                         rte_free(vnic->fw_grp_ids);
1567                         bnxt_hwrm_vnic_ctx_free(bp, vnic);
1568                         bnxt_hwrm_vnic_free(bp, vnic);
1569                         vnic->rx_queue_cnt = 0;
1570                         bp->nr_vnics--;
1571                         PMD_DRV_LOG(DEBUG, "Free VNIC\n");
1572                 }
1573         }
1574
1575         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1576                 bnxt_hwrm_clear_em_filter(bp, filter);
1577         else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1578                 bnxt_hwrm_clear_ntuple_filter(bp, filter);
1579         else
1580                 bnxt_hwrm_clear_l2_filter(bp, filter);
1581
1582 exit:
1583         /* No need to hold on to this filter if we are just validating flow */
1584         bnxt_free_filter(bp, filter);
1585         bnxt_release_flow_lock(bp);
1586
1587         return ret;
1588 }
1589
1590 static void
1591 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1592                    struct bnxt_filter_info *new_filter)
1593 {
1594         /* Clear the new L2 filter that was created in the previous step in
1595          * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1596          * filter which points to the new destination queue and so we clear
1597          * the previous L2 filter. For ntuple filters, we are going to reuse
1598          * the old L2 filter and create new NTUPLE filter with this new
1599          * destination queue subsequently during bnxt_flow_create. So we
1600          * decrement the ref cnt of the L2 filter that would've been bumped
1601          * up previously in bnxt_validate_and_parse_flow as the old n-tuple
1602          * filter that was referencing it will be deleted now.
1603          */
1604         bnxt_hwrm_clear_l2_filter(bp, old_filter);
1605         if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1606                 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1607         } else {
1608                 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1609                         bnxt_hwrm_clear_em_filter(bp, old_filter);
1610                 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1611                         bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1612         }
1613 }
1614
1615 static int
1616 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1617 {
1618         struct bnxt_filter_info *mf;
1619         struct rte_flow *flow;
1620         int i;
1621
1622         for (i = bp->max_vnics - 1; i >= 0; i--) {
1623                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1624
1625                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1626                         continue;
1627
1628                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1629                         mf = flow->filter;
1630
1631                         if (mf->filter_type == nf->filter_type &&
1632                             mf->flags == nf->flags &&
1633                             mf->src_port == nf->src_port &&
1634                             mf->src_port_mask == nf->src_port_mask &&
1635                             mf->dst_port == nf->dst_port &&
1636                             mf->dst_port_mask == nf->dst_port_mask &&
1637                             mf->ip_protocol == nf->ip_protocol &&
1638                             mf->ip_addr_type == nf->ip_addr_type &&
1639                             mf->ethertype == nf->ethertype &&
1640                             mf->vni == nf->vni &&
1641                             mf->tunnel_type == nf->tunnel_type &&
1642                             mf->l2_ovlan == nf->l2_ovlan &&
1643                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1644                             mf->l2_ivlan == nf->l2_ivlan &&
1645                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1646                             !memcmp(mf->l2_addr, nf->l2_addr,
1647                                     RTE_ETHER_ADDR_LEN) &&
1648                             !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1649                                     RTE_ETHER_ADDR_LEN) &&
1650                             !memcmp(mf->src_macaddr, nf->src_macaddr,
1651                                     RTE_ETHER_ADDR_LEN) &&
1652                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1653                                     RTE_ETHER_ADDR_LEN) &&
1654                             !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1655                                     sizeof(nf->src_ipaddr)) &&
1656                             !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1657                                     sizeof(nf->src_ipaddr_mask)) &&
1658                             !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1659                                     sizeof(nf->dst_ipaddr)) &&
1660                             !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1661                                     sizeof(nf->dst_ipaddr_mask))) {
1662                                 if (mf->dst_id == nf->dst_id)
1663                                         return -EEXIST;
1664                                 /* Free the old filter, update flow
1665                                  * with new filter
1666                                  */
1667                                 bnxt_update_filter(bp, mf, nf);
1668                                 STAILQ_REMOVE(&vnic->filter, mf,
1669                                               bnxt_filter_info, next);
1670                                 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1671                                 bnxt_free_filter(bp, mf);
1672                                 flow->filter = nf;
1673                                 return -EXDEV;
1674                         }
1675                 }
1676         }
1677         return 0;
1678 }
1679
1680 static void
1681 bnxt_setup_flow_counter(struct bnxt *bp)
1682 {
1683         if (bp->fw_cap & BNXT_FW_CAP_ADV_FLOW_COUNTERS &&
1684             !(bp->flags & BNXT_FLAG_FC_THREAD) && BNXT_FLOW_XSTATS_EN(bp)) {
1685                 rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1686                                   bnxt_flow_cnt_alarm_cb,
1687                                   (void *)bp);
1688                 bp->flags |= BNXT_FLAG_FC_THREAD;
1689         }
1690 }
1691
1692 void bnxt_flow_cnt_alarm_cb(void *arg)
1693 {
1694         int rc = 0;
1695         struct bnxt *bp = arg;
1696
1697         if (!bp->flow_stat->rx_fc_out_tbl.va) {
1698                 PMD_DRV_LOG(ERR, "bp->flow_stat->rx_fc_out_tbl.va is NULL?\n");
1699                 bnxt_cancel_fc_thread(bp);
1700                 return;
1701         }
1702
1703         if (!bp->flow_stat->flow_count) {
1704                 bnxt_cancel_fc_thread(bp);
1705                 return;
1706         }
1707
1708         if (!bp->eth_dev->data->dev_started) {
1709                 bnxt_cancel_fc_thread(bp);
1710                 return;
1711         }
1712
1713         rc = bnxt_flow_stats_req(bp);
1714         if (rc) {
1715                 PMD_DRV_LOG(ERR, "Flow stat alarm not rescheduled.\n");
1716                 return;
1717         }
1718
1719         rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1720                           bnxt_flow_cnt_alarm_cb,
1721                           (void *)bp);
1722 }
1723
1724
1725 static struct rte_flow *
1726 bnxt_flow_create(struct rte_eth_dev *dev,
1727                  const struct rte_flow_attr *attr,
1728                  const struct rte_flow_item pattern[],
1729                  const struct rte_flow_action actions[],
1730                  struct rte_flow_error *error)
1731 {
1732         struct bnxt *bp = dev->data->dev_private;
1733         struct bnxt_vnic_info *vnic = NULL;
1734         struct bnxt_filter_info *filter;
1735         bool update_flow = false;
1736         struct rte_flow *flow;
1737         int ret = 0;
1738         uint32_t tun_type, flow_id;
1739
1740         if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1741                 rte_flow_error_set(error, EINVAL,
1742                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1743                                    "Failed to create flow, Not a Trusted VF!");
1744                 return NULL;
1745         }
1746
1747         if (!dev->data->dev_started) {
1748                 rte_flow_error_set(error,
1749                                    EINVAL,
1750                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1751                                    NULL,
1752                                    "Device must be started");
1753                 return NULL;
1754         }
1755
1756         flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1757         if (!flow) {
1758                 rte_flow_error_set(error, ENOMEM,
1759                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1760                                    "Failed to allocate memory");
1761                 return flow;
1762         }
1763
1764         bnxt_acquire_flow_lock(bp);
1765         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1766         if (ret != 0) {
1767                 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1768                 goto free_flow;
1769         }
1770
1771         filter = bnxt_get_unused_filter(bp);
1772         if (filter == NULL) {
1773                 rte_flow_error_set(error, ENOSPC,
1774                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1775                                    "Not enough resources for a new flow");
1776                 goto free_flow;
1777         }
1778
1779         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1780                                            error, filter);
1781         if (ret != 0)
1782                 goto free_filter;
1783
1784         ret = bnxt_match_filter(bp, filter);
1785         if (ret == -EEXIST) {
1786                 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1787                 /* Clear the filter that was created as part of
1788                  * validate_and_parse_flow() above
1789                  */
1790                 bnxt_hwrm_clear_l2_filter(bp, filter);
1791                 goto free_filter;
1792         } else if (ret == -EXDEV) {
1793                 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1794                 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1795                 update_flow = true;
1796         }
1797
1798         /* If tunnel redirection to a VF/PF is specified then only tunnel_type
1799          * is set and enable is set to the tunnel type. Issue hwrm cmd directly
1800          * in such a case.
1801          */
1802         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1803             filter->enables == filter->tunnel_type) {
1804                 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1805                 if (ret) {
1806                         rte_flow_error_set(error, -ret,
1807                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1808                                            "Unable to query tunnel to VF");
1809                         goto free_filter;
1810                 }
1811                 if (tun_type == (1U << filter->tunnel_type)) {
1812                         ret =
1813                         bnxt_hwrm_tunnel_redirect_free(bp,
1814                                                        filter->tunnel_type);
1815                         if (ret) {
1816                                 PMD_DRV_LOG(ERR,
1817                                             "Unable to free existing tunnel\n");
1818                                 rte_flow_error_set(error, -ret,
1819                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1820                                                    NULL,
1821                                                    "Unable to free preexisting "
1822                                                    "tunnel on VF");
1823                                 goto free_filter;
1824                         }
1825                 }
1826                 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
1827                 if (ret) {
1828                         rte_flow_error_set(error, -ret,
1829                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1830                                            "Unable to redirect tunnel to VF");
1831                         goto free_filter;
1832                 }
1833                 vnic = &bp->vnic_info[0];
1834                 goto done;
1835         }
1836
1837         if (filter->filter_type == HWRM_CFA_EM_FILTER) {
1838                 filter->enables |=
1839                         HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1840                 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
1841                 if (ret != 0) {
1842                         rte_flow_error_set(error, -ret,
1843                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1844                                            "Failed to create EM filter");
1845                         goto free_filter;
1846                 }
1847         }
1848
1849         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
1850                 filter->enables |=
1851                         HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1852                 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
1853                 if (ret != 0) {
1854                         rte_flow_error_set(error, -ret,
1855                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1856                                            "Failed to create ntuple filter");
1857                         goto free_filter;
1858                 }
1859         }
1860
1861         if (BNXT_RFS_NEEDS_VNIC(bp))
1862                 vnic = find_matching_vnic(bp, filter);
1863         else
1864                 vnic = BNXT_GET_DEFAULT_VNIC(bp);
1865 done:
1866         if (!ret || update_flow) {
1867                 flow->filter = filter;
1868                 flow->vnic = vnic;
1869                 if (update_flow) {
1870                         ret = -EXDEV;
1871                         goto free_flow;
1872                 }
1873
1874                 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1875                         PMD_DRV_LOG(DEBUG,
1876                                     "Mark action: mark id 0x%x, flow id 0x%x\n",
1877                                     filter->mark, filter->flow_id);
1878
1879                         /* TCAM and EM should be 16-bit only.
1880                          * Other modes not supported.
1881                          */
1882                         flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1883                         if (bp->mark_table[flow_id].valid) {
1884                                 rte_flow_error_set(error, EEXIST,
1885                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1886                                                    NULL,
1887                                                    "Flow with mark id exists");
1888                                 bnxt_clear_one_vnic_filter(bp, filter);
1889                                 goto free_filter;
1890                         }
1891                         bp->mark_table[flow_id].valid = true;
1892                         bp->mark_table[flow_id].mark_id = filter->mark;
1893                 }
1894
1895                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
1896                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1897
1898                 if (BNXT_FLOW_XSTATS_EN(bp))
1899                         bp->flow_stat->flow_count++;
1900                 bnxt_release_flow_lock(bp);
1901                 bnxt_setup_flow_counter(bp);
1902                 PMD_DRV_LOG(DEBUG, "Successfully created flow.\n");
1903                 return flow;
1904         }
1905
1906 free_filter:
1907         bnxt_free_filter(bp, filter);
1908 free_flow:
1909         if (ret == -EEXIST)
1910                 rte_flow_error_set(error, ret,
1911                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1912                                    "Matching Flow exists.");
1913         else if (ret == -EXDEV)
1914                 rte_flow_error_set(error, 0,
1915                                    RTE_FLOW_ERROR_TYPE_NONE, NULL,
1916                                    "Flow with pattern exists, updating destination queue");
1917         else if (!rte_errno)
1918                 rte_flow_error_set(error, -ret,
1919                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1920                                    "Failed to create flow.");
1921         rte_free(flow);
1922         flow = NULL;
1923         bnxt_release_flow_lock(bp);
1924         return flow;
1925 }
1926
1927 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
1928                                                struct bnxt_filter_info *filter,
1929                                                struct rte_flow_error *error)
1930 {
1931         uint16_t tun_dst_fid;
1932         uint32_t tun_type;
1933         int ret = 0;
1934
1935         ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1936         if (ret) {
1937                 rte_flow_error_set(error, -ret,
1938                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1939                                    "Unable to query tunnel to VF");
1940                 return ret;
1941         }
1942         if (tun_type == (1U << filter->tunnel_type)) {
1943                 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
1944                                                      &tun_dst_fid);
1945                 if (ret) {
1946                         rte_flow_error_set(error, -ret,
1947                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1948                                            NULL,
1949                                            "tunnel_redirect info cmd fail");
1950                         return ret;
1951                 }
1952                 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
1953                             tun_dst_fid + bp->first_vf_id, bp->fw_fid);
1954
1955                 /* Tunnel doesn't belong to this VF, so don't send HWRM
1956                  * cmd, just delete the flow from driver
1957                  */
1958                 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id))
1959                         PMD_DRV_LOG(ERR,
1960                                     "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
1961                 else
1962                         ret = bnxt_hwrm_tunnel_redirect_free(bp,
1963                                                         filter->tunnel_type);
1964         }
1965         return ret;
1966 }
1967
1968 static int
1969 _bnxt_flow_destroy(struct bnxt *bp,
1970                    struct rte_flow *flow,
1971                     struct rte_flow_error *error)
1972 {
1973         struct bnxt_filter_info *filter;
1974         struct bnxt_vnic_info *vnic;
1975         int ret = 0;
1976         uint32_t flow_id;
1977
1978         filter = flow->filter;
1979         vnic = flow->vnic;
1980
1981         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1982             filter->enables == filter->tunnel_type) {
1983                 ret = bnxt_handle_tunnel_redirect_destroy(bp, filter, error);
1984                 if (!ret)
1985                         goto done;
1986                 else
1987                         return ret;
1988         }
1989
1990         ret = bnxt_match_filter(bp, filter);
1991         if (ret == 0)
1992                 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
1993
1994         if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1995                 flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1996                 memset(&bp->mark_table[flow_id], 0,
1997                        sizeof(bp->mark_table[flow_id]));
1998                 filter->flow_id = 0;
1999         }
2000
2001         ret = bnxt_clear_one_vnic_filter(bp, filter);
2002
2003 done:
2004         if (!ret) {
2005                 /* If it is a L2 drop filter, when the filter is created,
2006                  * the FW updates the BC/MC records.
2007                  * Once this filter is removed, issue the set_rx_mask command
2008                  * to reset the BC/MC records in the HW to the settings
2009                  * before the drop counter is created.
2010                  */
2011                 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
2012                         bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
2013
2014                 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
2015                 bnxt_free_filter(bp, filter);
2016                 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
2017                 rte_free(flow);
2018                 if (BNXT_FLOW_XSTATS_EN(bp))
2019                         bp->flow_stat->flow_count--;
2020
2021                 /* If this was the last flow associated with this vnic,
2022                  * switch the queue back to RSS pool.
2023                  */
2024                 if (vnic && !vnic->func_default &&
2025                     STAILQ_EMPTY(&vnic->flow_list)) {
2026                         rte_free(vnic->fw_grp_ids);
2027                         if (vnic->rx_queue_cnt > 1)
2028                                 bnxt_hwrm_vnic_ctx_free(bp, vnic);
2029
2030                         bnxt_hwrm_vnic_free(bp, vnic);
2031                         vnic->rx_queue_cnt = 0;
2032                         bp->nr_vnics--;
2033                 }
2034         } else {
2035                 rte_flow_error_set(error, -ret,
2036                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2037                                    "Failed to destroy flow.");
2038         }
2039
2040         return ret;
2041 }
2042
2043 static int
2044 bnxt_flow_destroy(struct rte_eth_dev *dev,
2045                   struct rte_flow *flow,
2046                   struct rte_flow_error *error)
2047 {
2048         struct bnxt *bp = dev->data->dev_private;
2049         int ret = 0;
2050
2051         bnxt_acquire_flow_lock(bp);
2052         if (!flow) {
2053                 rte_flow_error_set(error, EINVAL,
2054                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2055                                    "Invalid flow: failed to destroy flow.");
2056                 bnxt_release_flow_lock(bp);
2057                 return -EINVAL;
2058         }
2059
2060         if (!flow->filter) {
2061                 rte_flow_error_set(error, EINVAL,
2062                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2063                                    "Invalid flow: failed to destroy flow.");
2064                 bnxt_release_flow_lock(bp);
2065                 return -EINVAL;
2066         }
2067         ret = _bnxt_flow_destroy(bp, flow, error);
2068         bnxt_release_flow_lock(bp);
2069
2070         return ret;
2071 }
2072
2073 void bnxt_cancel_fc_thread(struct bnxt *bp)
2074 {
2075         bp->flags &= ~BNXT_FLAG_FC_THREAD;
2076         rte_eal_alarm_cancel(bnxt_flow_cnt_alarm_cb, (void *)bp);
2077 }
2078
2079 static int
2080 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
2081 {
2082         struct bnxt *bp = dev->data->dev_private;
2083         struct bnxt_vnic_info *vnic;
2084         struct rte_flow *flow;
2085         unsigned int i;
2086         int ret = 0;
2087
2088         bnxt_acquire_flow_lock(bp);
2089         for (i = 0; i < bp->max_vnics; i++) {
2090                 vnic = &bp->vnic_info[i];
2091                 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
2092                         continue;
2093
2094                 while (!STAILQ_EMPTY(&vnic->flow_list)) {
2095                         flow = STAILQ_FIRST(&vnic->flow_list);
2096
2097                         if (!flow->filter)
2098                                 continue;
2099
2100                         ret = _bnxt_flow_destroy(bp, flow, error);
2101                         if (ret)
2102                                 break;
2103                 }
2104         }
2105
2106         bnxt_cancel_fc_thread(bp);
2107         bnxt_release_flow_lock(bp);
2108
2109         return ret;
2110 }
2111
2112 const struct rte_flow_ops bnxt_flow_ops = {
2113         .validate = bnxt_flow_validate,
2114         .create = bnxt_flow_create,
2115         .destroy = bnxt_flow_destroy,
2116         .flush = bnxt_flow_flush,
2117 };