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 /* ctx_idx 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         } else {
 965                 PMD_DRV_LOG(DEBUG, "No RSS context required\n");
 966         }
 967
 968         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 969                 vnic->vlan_strip = true;
 970         else
 971                 vnic->vlan_strip = false;
 972
 973         rc = bnxt_hwrm_vnic_cfg(bp, vnic);
 974         if (rc) {
 975                 rte_flow_error_set(error, -rc,
 976                                    RTE_FLOW_ERROR_TYPE_ACTION,
 977                                    act,
 978                                    "Failed to configure VNIC");
 979                 goto ret;
 980         }
 981
 982         rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
 983         if (rc) {
 984                 rte_flow_error_set(error, -rc,
 985                                    RTE_FLOW_ERROR_TYPE_ACTION,
 986                                    act,
 987                                    "Failed to configure VNIC plcmode");
 988                 goto ret;
 989         }
 990
 991         return 0;
 992
 993 ret:
 994         return rc;
 995 }
 996
 997 static int match_vnic_rss_cfg(struct bnxt *bp,
 998                               struct bnxt_vnic_info *vnic,
 999                               const struct rte_flow_action_rss *rss)
1000 {
1001         unsigned int match = 0, i;
1002
1003         if (vnic->rx_queue_cnt != rss->queue_num)
1004                 return -EINVAL;
1005
1006         for (i = 0; i < rss->queue_num; i++) {
1007                 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt &&
1008                     !bp->rx_queues[rss->queue[i]]->rx_started)
1009                         return -EINVAL;
1010         }
1011
1012         for (i = 0; i < vnic->rx_queue_cnt; i++) {
1013                 int j;
1014
1015                 for (j = 0; j < vnic->rx_queue_cnt; j++) {
1016                         if (bp->grp_info[rss->queue[i]].fw_grp_id ==
1017                             vnic->fw_grp_ids[j])
1018                                 match++;
1019                 }
1020         }
1021
1022         if (match != vnic->rx_queue_cnt) {
1023                 PMD_DRV_LOG(ERR,
1024                             "VNIC queue count %d vs queues matched %d\n",
1025                             match, vnic->rx_queue_cnt);
1026                 return -EINVAL;
1027         }
1028
1029         return 0;
1030 }
1031
1032 static void
1033 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
1034                             struct bnxt_filter_info *filter1,
1035                             int use_ntuple)
1036 {
1037         if (!use_ntuple &&
1038             !(filter->valid_flags &
1039               ~(BNXT_FLOW_L2_DST_VALID_FLAG |
1040                 BNXT_FLOW_L2_SRC_VALID_FLAG |
1041                 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
1042                 BNXT_FLOW_L2_INNER_DST_VALID_FLAG |
1043                 BNXT_FLOW_L2_DROP_FLAG |
1044                 BNXT_FLOW_PARSE_INNER_FLAG))) {
1045                 filter->flags = filter1->flags;
1046                 filter->enables = filter1->enables;
1047                 filter->filter_type = HWRM_CFA_L2_FILTER;
1048                 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN);
1049                 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
1050                 filter->pri_hint = filter1->pri_hint;
1051                 filter->l2_filter_id_hint = filter1->l2_filter_id_hint;
1052         }
1053         filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1054         filter->l2_ref_cnt = filter1->l2_ref_cnt;
1055         filter->flow_id = filter1->flow_id;
1056         PMD_DRV_LOG(DEBUG,
1057                 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
1058                 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
1059 }
1060
1061 static int
1062 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
1063                              const struct rte_flow_item pattern[],
1064                              const struct rte_flow_action actions[],
1065                              const struct rte_flow_attr *attr,
1066                              struct rte_flow_error *error,
1067                              struct bnxt_filter_info *filter)
1068 {
1069         const struct rte_flow_action *act =
1070                 bnxt_flow_non_void_action(actions);
1071         struct bnxt *bp = dev->data->dev_private;
1072         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
1073         struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL;
1074         const struct rte_flow_action_queue *act_q;
1075         const struct rte_flow_action_vf *act_vf;
1076         struct bnxt_filter_info *filter1 = NULL;
1077         const struct rte_flow_action_rss *rss;
1078         struct bnxt_rx_queue *rxq = NULL;
1079         int dflt_vnic, vnic_id;
1080         unsigned int rss_idx;
1081         uint32_t vf = 0, i;
1082         int rc, use_ntuple;
1083
1084         rc =
1085         bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
1086         if (rc != 0)
1087                 goto ret;
1088
1089         rc = bnxt_flow_parse_attr(attr, error);
1090         if (rc != 0)
1091                 goto ret;
1092
1093         /* Since we support ingress attribute only - right now. */
1094         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1095                 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
1096
1097         use_ntuple = bnxt_filter_type_check(pattern, error);
1098
1099 start:
1100         switch (act->type) {
1101         case RTE_FLOW_ACTION_TYPE_QUEUE:
1102                 /* Allow this flow. Redirect to a VNIC. */
1103                 act_q = (const struct rte_flow_action_queue *)act->conf;
1104                 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
1105                         rte_flow_error_set(error,
1106                                            EINVAL,
1107                                            RTE_FLOW_ERROR_TYPE_ACTION,
1108                                            act,
1109                                            "Invalid queue ID.");
1110                         rc = -rte_errno;
1111                         goto ret;
1112                 }
1113                 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
1114
1115                 if (use_ntuple && !BNXT_RFS_NEEDS_VNIC(bp)) {
1116                         filter->flags =
1117                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DEST_RFS_RING_IDX;
1118                         filter->dst_id = act_q->index;
1119                         goto skip_vnic_alloc;
1120                 }
1121
1122                 vnic_id = attr->group;
1123                 if (!vnic_id) {
1124                         PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1125                         vnic_id = act_q->index;
1126                 }
1127
1128                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1129
1130                 vnic = &bp->vnic_info[vnic_id];
1131                 if (vnic->rx_queue_cnt) {
1132                         if (vnic->start_grp_id != act_q->index) {
1133                                 PMD_DRV_LOG(ERR,
1134                                             "VNIC already in use\n");
1135                                 rte_flow_error_set(error,
1136                                                    EINVAL,
1137                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1138                                                    act,
1139                                                    "VNIC already in use");
1140                                 rc = -rte_errno;
1141                                 goto ret;
1142                         }
1143                         goto use_vnic;
1144                 }
1145
1146                 rxq = bp->rx_queues[act_q->index];
1147
1148                 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1149                     vnic->fw_vnic_id != INVALID_HW_RING_ID)
1150                         goto use_vnic;
1151
1152                 if (!rxq) {
1153                         PMD_DRV_LOG(ERR,
1154                                     "Queue invalid or used with other VNIC\n");
1155                         rte_flow_error_set(error,
1156                                            EINVAL,
1157                                            RTE_FLOW_ERROR_TYPE_ACTION,
1158                                            act,
1159                                            "Queue invalid queue or in use");
1160                         rc = -rte_errno;
1161                         goto ret;
1162                 }
1163
1164                 rxq->vnic = vnic;
1165                 rxq->rx_started = 1;
1166                 vnic->rx_queue_cnt++;
1167                 vnic->start_grp_id = act_q->index;
1168                 vnic->end_grp_id = act_q->index;
1169                 vnic->func_default = 0; //This is not a default VNIC.
1170
1171                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1172
1173                 rc = bnxt_vnic_prep(bp, vnic, act, error);
1174                 if (rc)
1175                         goto ret;
1176
1177                 PMD_DRV_LOG(DEBUG,
1178                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1179                             act_q->index, vnic, vnic->fw_grp_ids);
1180
1181 use_vnic:
1182                 vnic->ff_pool_idx = vnic_id;
1183                 PMD_DRV_LOG(DEBUG,
1184                             "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1185                 filter->dst_id = vnic->fw_vnic_id;
1186 skip_vnic_alloc:
1187                 /* For ntuple filter, create the L2 filter with default VNIC.
1188                  * The user specified redirect queue will be set while creating
1189                  * the ntuple filter in hardware.
1190                  */
1191                 vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
1192                 if (use_ntuple)
1193                         filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1194                 else
1195                         filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1196                 if (filter1 == NULL) {
1197                         rte_flow_error_set(error,
1198                                            ENOSPC,
1199                                            RTE_FLOW_ERROR_TYPE_ACTION,
1200                                            act,
1201                                            "Filter not available");
1202                         rc = -rte_errno;
1203                         goto ret;
1204                 }
1205
1206                 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1207                             filter, filter1, filter1->l2_ref_cnt);
1208                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1209                 break;
1210         case RTE_FLOW_ACTION_TYPE_DROP:
1211                 vnic0 = &bp->vnic_info[0];
1212                 filter->dst_id = vnic0->fw_vnic_id;
1213                 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
1214                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1215                 if (filter1 == NULL) {
1216                         rte_flow_error_set(error,
1217                                            ENOSPC,
1218                                            RTE_FLOW_ERROR_TYPE_ACTION,
1219                                            act,
1220                                            "Filter not available");
1221                         rc = -rte_errno;
1222                         goto ret;
1223                 }
1224
1225                 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1226                         filter->flags =
1227                                 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1228                 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1229                         filter->flags =
1230                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1231
1232                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1233                 break;
1234         case RTE_FLOW_ACTION_TYPE_COUNT:
1235                 vnic0 = &bp->vnic_info[0];
1236                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1237                 if (filter1 == NULL) {
1238                         rte_flow_error_set(error,
1239                                            ENOSPC,
1240                                            RTE_FLOW_ERROR_TYPE_ACTION,
1241                                            act,
1242                                            "New filter not available");
1243                         rc = -rte_errno;
1244                         goto ret;
1245                 }
1246
1247                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1248                 filter->flow_id = filter1->flow_id;
1249                 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1250                 break;
1251         case RTE_FLOW_ACTION_TYPE_VF:
1252                 act_vf = (const struct rte_flow_action_vf *)act->conf;
1253                 vf = act_vf->id;
1254
1255                 if (filter->tunnel_type ==
1256                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1257                     filter->tunnel_type ==
1258                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1259                         /* If issued on a VF, ensure id is 0 and is trusted */
1260                         if (BNXT_VF(bp)) {
1261                                 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1262                                         rte_flow_error_set(error, EINVAL,
1263                                                 RTE_FLOW_ERROR_TYPE_ACTION,
1264                                                 act,
1265                                                 "Incorrect VF");
1266                                         rc = -rte_errno;
1267                                         goto ret;
1268                                 }
1269                         }
1270
1271                         filter->enables |= filter->tunnel_type;
1272                         filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1273                         goto done;
1274                 }
1275
1276                 if (vf >= bp->pdev->max_vfs) {
1277                         rte_flow_error_set(error,
1278                                            EINVAL,
1279                                            RTE_FLOW_ERROR_TYPE_ACTION,
1280                                            act,
1281                                            "Incorrect VF id!");
1282                         rc = -rte_errno;
1283                         goto ret;
1284                 }
1285
1286                 filter->mirror_vnic_id =
1287                 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1288                 if (dflt_vnic < 0) {
1289                         /* This simply indicates there's no driver loaded.
1290                          * This is not an error.
1291                          */
1292                         rte_flow_error_set(error,
1293                                            EINVAL,
1294                                            RTE_FLOW_ERROR_TYPE_ACTION,
1295                                            act,
1296                                            "Unable to get default VNIC for VF");
1297                         rc = -rte_errno;
1298                         goto ret;
1299                 }
1300
1301                 filter->mirror_vnic_id = dflt_vnic;
1302                 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1303
1304                 vnic0 = &bp->vnic_info[0];
1305                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1306                 if (filter1 == NULL) {
1307                         rte_flow_error_set(error,
1308                                            ENOSPC,
1309                                            RTE_FLOW_ERROR_TYPE_ACTION,
1310                                            act,
1311                                            "New filter not available");
1312                         rc = -rte_errno;
1313                         goto ret;
1314                 }
1315
1316                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1317                 filter->flow_id = filter1->flow_id;
1318                 break;
1319         case RTE_FLOW_ACTION_TYPE_RSS:
1320                 rss = (const struct rte_flow_action_rss *)act->conf;
1321
1322                 vnic_id = attr->group;
1323
1324                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1325                 vnic = &bp->vnic_info[vnic_id];
1326
1327                 /* Check if requested RSS config matches RSS config of VNIC
1328                  * only if it is not a fresh VNIC configuration.
1329                  * Otherwise the existing VNIC configuration can be used.
1330                  */
1331                 if (vnic->rx_queue_cnt) {
1332                         rc = match_vnic_rss_cfg(bp, vnic, rss);
1333                         if (rc) {
1334                                 PMD_DRV_LOG(ERR,
1335                                             "VNIC and RSS config mismatch\n");
1336                                 rte_flow_error_set(error,
1337                                                    EINVAL,
1338                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1339                                                    act,
1340                                                    "VNIC and RSS cfg mismatch");
1341                                 rc = -rte_errno;
1342                                 goto ret;
1343                         }
1344                         goto vnic_found;
1345                 }
1346
1347                 for (i = 0; i < rss->queue_num; i++) {
1348                         PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1349                                     rss->queue[i]);
1350
1351                         if (!rss->queue[i] ||
1352                             rss->queue[i] >= bp->rx_nr_rings ||
1353                             !bp->rx_queues[rss->queue[i]]) {
1354                                 rte_flow_error_set(error,
1355                                                    EINVAL,
1356                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1357                                                    act,
1358                                                    "Invalid queue ID for RSS");
1359                                 rc = -rte_errno;
1360                                 goto ret;
1361                         }
1362                         rxq = bp->rx_queues[rss->queue[i]];
1363
1364                         if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1365                             INVALID_HW_RING_ID) {
1366                                 PMD_DRV_LOG(ERR,
1367                                             "queue active with other VNIC\n");
1368                                 rte_flow_error_set(error,
1369                                                    EINVAL,
1370                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1371                                                    act,
1372                                                    "Invalid queue ID for RSS");
1373                                 rc = -rte_errno;
1374                                 goto ret;
1375                         }
1376
1377                         rxq->vnic = vnic;
1378                         rxq->rx_started = 1;
1379                         vnic->rx_queue_cnt++;
1380                 }
1381
1382                 vnic->start_grp_id = rss->queue[0];
1383                 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1384                 vnic->func_default = 0; //This is not a default VNIC.
1385
1386                 rc = bnxt_vnic_prep(bp, vnic, act, error);
1387                 if (rc)
1388                         goto ret;
1389
1390                 PMD_DRV_LOG(DEBUG,
1391                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1392                             vnic_id, vnic, vnic->fw_grp_ids);
1393
1394                 vnic->ff_pool_idx = vnic_id;
1395                 PMD_DRV_LOG(DEBUG,
1396                             "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1397
1398                 /* This can be done only after vnic_grp_alloc is done. */
1399                 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1400                         vnic->fw_grp_ids[i] =
1401                                 bp->grp_info[rss->queue[i]].fw_grp_id;
1402                         /* Make sure vnic0 does not use these rings. */
1403                         bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1404                                 INVALID_HW_RING_ID;
1405                 }
1406
1407                 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1408                         for (i = 0; i < vnic->rx_queue_cnt; i++)
1409                                 vnic->rss_table[rss_idx++] =
1410                                         vnic->fw_grp_ids[i];
1411                 }
1412
1413                 /* Configure RSS only if the queue count is > 1 */
1414                 if (vnic->rx_queue_cnt > 1) {
1415                         vnic->hash_type =
1416                                 bnxt_rte_to_hwrm_hash_types(rss->types);
1417                         vnic->hash_mode =
1418                         bnxt_rte_to_hwrm_hash_level(bp, rss->types, rss->level);
1419
1420                         if (!rss->key_len) {
1421                                 /* If hash key has not been specified,
1422                                  * use random hash key.
1423                                  */
1424                                 bnxt_prandom_bytes(vnic->rss_hash_key,
1425                                                    HW_HASH_KEY_SIZE);
1426                         } else {
1427                                 if (rss->key_len > HW_HASH_KEY_SIZE)
1428                                         memcpy(vnic->rss_hash_key,
1429                                                rss->key,
1430                                                HW_HASH_KEY_SIZE);
1431                                 else
1432                                         memcpy(vnic->rss_hash_key,
1433                                                rss->key,
1434                                                rss->key_len);
1435                         }
1436                         bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1437                 } else {
1438                         PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1439                 }
1440
1441 vnic_found:
1442                 filter->dst_id = vnic->fw_vnic_id;
1443                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1444                 if (filter1 == NULL) {
1445                         rte_flow_error_set(error,
1446                                            ENOSPC,
1447                                            RTE_FLOW_ERROR_TYPE_ACTION,
1448                                            act,
1449                                            "New filter not available");
1450                         rc = -rte_errno;
1451                         goto ret;
1452                 }
1453
1454                 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1455                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1456                 break;
1457         case RTE_FLOW_ACTION_TYPE_MARK:
1458                 if (bp->mark_table == NULL) {
1459                         rte_flow_error_set(error,
1460                                            ENOMEM,
1461                                            RTE_FLOW_ERROR_TYPE_ACTION,
1462                                            act,
1463                                            "Mark table not allocated.");
1464                         rc = -rte_errno;
1465                         goto ret;
1466                 }
1467
1468                 if (bp->flags & BNXT_FLAG_RX_VECTOR_PKT_MODE) {
1469                         PMD_DRV_LOG(DEBUG,
1470                                     "Disabling vector processing for mark\n");
1471                         bp->eth_dev->rx_pkt_burst = bnxt_recv_pkts;
1472                         bp->flags &= ~BNXT_FLAG_RX_VECTOR_PKT_MODE;
1473                 }
1474
1475                 filter->valid_flags |= BNXT_FLOW_MARK_FLAG;
1476                 filter->mark = ((const struct rte_flow_action_mark *)
1477                                 act->conf)->id;
1478                 PMD_DRV_LOG(DEBUG, "Mark the flow %d\n", filter->mark);
1479                 break;
1480         default:
1481                 rte_flow_error_set(error,
1482                                    EINVAL,
1483                                    RTE_FLOW_ERROR_TYPE_ACTION,
1484                                    act,
1485                                    "Invalid action.");
1486                 rc = -rte_errno;
1487                 goto ret;
1488         }
1489
1490 done:
1491         act = bnxt_flow_non_void_action(++act);
1492         while (act->type != RTE_FLOW_ACTION_TYPE_END)
1493                 goto start;
1494
1495         return rc;
1496 ret:
1497
1498         if (filter1) {
1499                 bnxt_hwrm_clear_l2_filter(bp, filter1);
1500                 bnxt_free_filter(bp, filter1);
1501         }
1502
1503         if (rte_errno)  {
1504                 if (vnic && STAILQ_EMPTY(&vnic->filter))
1505                         vnic->rx_queue_cnt = 0;
1506
1507                 if (rxq && !vnic->rx_queue_cnt)
1508                         rxq->vnic = &bp->vnic_info[0];
1509         }
1510         return -rte_errno;
1511 }
1512
1513 static
1514 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp,
1515                                           struct bnxt_filter_info *filter)
1516 {
1517         struct bnxt_vnic_info *vnic = NULL;
1518         unsigned int i;
1519
1520         for (i = 0; i < bp->max_vnics; i++) {
1521                 vnic = &bp->vnic_info[i];
1522                 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1523                     filter->dst_id == vnic->fw_vnic_id) {
1524                         PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n",
1525                                     vnic->ff_pool_idx);
1526                         return vnic;
1527                 }
1528         }
1529         return NULL;
1530 }
1531
1532 static int
1533 bnxt_flow_validate(struct rte_eth_dev *dev,
1534                    const struct rte_flow_attr *attr,
1535                    const struct rte_flow_item pattern[],
1536                    const struct rte_flow_action actions[],
1537                    struct rte_flow_error *error)
1538 {
1539         struct bnxt *bp = dev->data->dev_private;
1540         struct bnxt_vnic_info *vnic = NULL;
1541         struct bnxt_filter_info *filter;
1542         int ret = 0;
1543
1544         bnxt_acquire_flow_lock(bp);
1545         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1546         if (ret != 0) {
1547                 bnxt_release_flow_lock(bp);
1548                 return ret;
1549         }
1550
1551         filter = bnxt_get_unused_filter(bp);
1552         if (filter == NULL) {
1553                 rte_flow_error_set(error, ENOSPC,
1554                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1555                                    "Not enough resources for a new flow");
1556                 bnxt_release_flow_lock(bp);
1557                 return -ENOSPC;
1558         }
1559
1560         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1561                                            error, filter);
1562         if (ret)
1563                 goto exit;
1564
1565         vnic = find_matching_vnic(bp, filter);
1566         if (vnic) {
1567                 if (STAILQ_EMPTY(&vnic->filter)) {
1568                         rte_free(vnic->fw_grp_ids);
1569                         bnxt_hwrm_vnic_ctx_free(bp, vnic);
1570                         bnxt_hwrm_vnic_free(bp, vnic);
1571                         vnic->rx_queue_cnt = 0;
1572                         bp->nr_vnics--;
1573                         PMD_DRV_LOG(DEBUG, "Free VNIC\n");
1574                 }
1575         }
1576
1577         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1578                 bnxt_hwrm_clear_em_filter(bp, filter);
1579         else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1580                 bnxt_hwrm_clear_ntuple_filter(bp, filter);
1581         else
1582                 bnxt_hwrm_clear_l2_filter(bp, filter);
1583
1584 exit:
1585         /* No need to hold on to this filter if we are just validating flow */
1586         bnxt_free_filter(bp, filter);
1587         bnxt_release_flow_lock(bp);
1588
1589         return ret;
1590 }
1591
1592 static void
1593 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1594                    struct bnxt_filter_info *new_filter)
1595 {
1596         /* Clear the new L2 filter that was created in the previous step in
1597          * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1598          * filter which points to the new destination queue and so we clear
1599          * the previous L2 filter. For ntuple filters, we are going to reuse
1600          * the old L2 filter and create new NTUPLE filter with this new
1601          * destination queue subsequently during bnxt_flow_create. So we
1602          * decrement the ref cnt of the L2 filter that would've been bumped
1603          * up previously in bnxt_validate_and_parse_flow as the old n-tuple
1604          * filter that was referencing it will be deleted now.
1605          */
1606         bnxt_hwrm_clear_l2_filter(bp, old_filter);
1607         if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1608                 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1609         } else {
1610                 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1611                         bnxt_hwrm_clear_em_filter(bp, old_filter);
1612                 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1613                         bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1614         }
1615 }
1616
1617 static int
1618 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1619 {
1620         struct bnxt_filter_info *mf;
1621         struct rte_flow *flow;
1622         int i;
1623
1624         for (i = bp->max_vnics - 1; i >= 0; i--) {
1625                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1626
1627                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1628                         continue;
1629
1630                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1631                         mf = flow->filter;
1632
1633                         if (mf->filter_type == nf->filter_type &&
1634                             mf->flags == nf->flags &&
1635                             mf->src_port == nf->src_port &&
1636                             mf->src_port_mask == nf->src_port_mask &&
1637                             mf->dst_port == nf->dst_port &&
1638                             mf->dst_port_mask == nf->dst_port_mask &&
1639                             mf->ip_protocol == nf->ip_protocol &&
1640                             mf->ip_addr_type == nf->ip_addr_type &&
1641                             mf->ethertype == nf->ethertype &&
1642                             mf->vni == nf->vni &&
1643                             mf->tunnel_type == nf->tunnel_type &&
1644                             mf->l2_ovlan == nf->l2_ovlan &&
1645                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1646                             mf->l2_ivlan == nf->l2_ivlan &&
1647                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1648                             !memcmp(mf->l2_addr, nf->l2_addr,
1649                                     RTE_ETHER_ADDR_LEN) &&
1650                             !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1651                                     RTE_ETHER_ADDR_LEN) &&
1652                             !memcmp(mf->src_macaddr, nf->src_macaddr,
1653                                     RTE_ETHER_ADDR_LEN) &&
1654                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1655                                     RTE_ETHER_ADDR_LEN) &&
1656                             !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1657                                     sizeof(nf->src_ipaddr)) &&
1658                             !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1659                                     sizeof(nf->src_ipaddr_mask)) &&
1660                             !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1661                                     sizeof(nf->dst_ipaddr)) &&
1662                             !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1663                                     sizeof(nf->dst_ipaddr_mask))) {
1664                                 if (mf->dst_id == nf->dst_id)
1665                                         return -EEXIST;
1666                                 /* Free the old filter, update flow
1667                                  * with new filter
1668                                  */
1669                                 bnxt_update_filter(bp, mf, nf);
1670                                 STAILQ_REMOVE(&vnic->filter, mf,
1671                                               bnxt_filter_info, next);
1672                                 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1673                                 bnxt_free_filter(bp, mf);
1674                                 flow->filter = nf;
1675                                 return -EXDEV;
1676                         }
1677                 }
1678         }
1679         return 0;
1680 }
1681
1682 static void
1683 bnxt_setup_flow_counter(struct bnxt *bp)
1684 {
1685         if (bp->fw_cap & BNXT_FW_CAP_ADV_FLOW_COUNTERS &&
1686             !(bp->flags & BNXT_FLAG_FC_THREAD) && BNXT_FLOW_XSTATS_EN(bp)) {
1687                 rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1688                                   bnxt_flow_cnt_alarm_cb,
1689                                   (void *)bp);
1690                 bp->flags |= BNXT_FLAG_FC_THREAD;
1691         }
1692 }
1693
1694 void bnxt_flow_cnt_alarm_cb(void *arg)
1695 {
1696         int rc = 0;
1697         struct bnxt *bp = arg;
1698
1699         if (!bp->flow_stat->rx_fc_out_tbl.va) {
1700                 PMD_DRV_LOG(ERR, "bp->flow_stat->rx_fc_out_tbl.va is NULL?\n");
1701                 bnxt_cancel_fc_thread(bp);
1702                 return;
1703         }
1704
1705         if (!bp->flow_stat->flow_count) {
1706                 bnxt_cancel_fc_thread(bp);
1707                 return;
1708         }
1709
1710         if (!bp->eth_dev->data->dev_started) {
1711                 bnxt_cancel_fc_thread(bp);
1712                 return;
1713         }
1714
1715         rc = bnxt_flow_stats_req(bp);
1716         if (rc) {
1717                 PMD_DRV_LOG(ERR, "Flow stat alarm not rescheduled.\n");
1718                 return;
1719         }
1720
1721         rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1722                           bnxt_flow_cnt_alarm_cb,
1723                           (void *)bp);
1724 }
1725
1726
1727 static struct rte_flow *
1728 bnxt_flow_create(struct rte_eth_dev *dev,
1729                  const struct rte_flow_attr *attr,
1730                  const struct rte_flow_item pattern[],
1731                  const struct rte_flow_action actions[],
1732                  struct rte_flow_error *error)
1733 {
1734         struct bnxt *bp = dev->data->dev_private;
1735         struct bnxt_vnic_info *vnic = NULL;
1736         struct bnxt_filter_info *filter;
1737         bool update_flow = false;
1738         struct rte_flow *flow;
1739         int ret = 0;
1740         uint32_t tun_type, flow_id;
1741
1742         if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1743                 rte_flow_error_set(error, EINVAL,
1744                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1745                                    "Failed to create flow, Not a Trusted VF!");
1746                 return NULL;
1747         }
1748
1749         if (!dev->data->dev_started) {
1750                 rte_flow_error_set(error,
1751                                    EINVAL,
1752                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1753                                    NULL,
1754                                    "Device must be started");
1755                 return NULL;
1756         }
1757
1758         flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1759         if (!flow) {
1760                 rte_flow_error_set(error, ENOMEM,
1761                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1762                                    "Failed to allocate memory");
1763                 return flow;
1764         }
1765
1766         bnxt_acquire_flow_lock(bp);
1767         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1768         if (ret != 0) {
1769                 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1770                 goto free_flow;
1771         }
1772
1773         filter = bnxt_get_unused_filter(bp);
1774         if (filter == NULL) {
1775                 rte_flow_error_set(error, ENOSPC,
1776                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1777                                    "Not enough resources for a new flow");
1778                 goto free_flow;
1779         }
1780
1781         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1782                                            error, filter);
1783         if (ret != 0)
1784                 goto free_filter;
1785
1786         ret = bnxt_match_filter(bp, filter);
1787         if (ret == -EEXIST) {
1788                 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1789                 /* Clear the filter that was created as part of
1790                  * validate_and_parse_flow() above
1791                  */
1792                 bnxt_hwrm_clear_l2_filter(bp, filter);
1793                 goto free_filter;
1794         } else if (ret == -EXDEV) {
1795                 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1796                 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1797                 update_flow = true;
1798         }
1799
1800         /* If tunnel redirection to a VF/PF is specified then only tunnel_type
1801          * is set and enable is set to the tunnel type. Issue hwrm cmd directly
1802          * in such a case.
1803          */
1804         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1805             filter->enables == filter->tunnel_type) {
1806                 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1807                 if (ret) {
1808                         rte_flow_error_set(error, -ret,
1809                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1810                                            "Unable to query tunnel to VF");
1811                         goto free_filter;
1812                 }
1813                 if (tun_type == (1U << filter->tunnel_type)) {
1814                         ret =
1815                         bnxt_hwrm_tunnel_redirect_free(bp,
1816                                                        filter->tunnel_type);
1817                         if (ret) {
1818                                 PMD_DRV_LOG(ERR,
1819                                             "Unable to free existing tunnel\n");
1820                                 rte_flow_error_set(error, -ret,
1821                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1822                                                    NULL,
1823                                                    "Unable to free preexisting "
1824                                                    "tunnel on VF");
1825                                 goto free_filter;
1826                         }
1827                 }
1828                 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
1829                 if (ret) {
1830                         rte_flow_error_set(error, -ret,
1831                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1832                                            "Unable to redirect tunnel to VF");
1833                         goto free_filter;
1834                 }
1835                 vnic = &bp->vnic_info[0];
1836                 goto done;
1837         }
1838
1839         if (filter->filter_type == HWRM_CFA_EM_FILTER) {
1840                 filter->enables |=
1841                         HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1842                 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
1843                 if (ret != 0) {
1844                         rte_flow_error_set(error, -ret,
1845                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1846                                            "Failed to create EM filter");
1847                         goto free_filter;
1848                 }
1849         }
1850
1851         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
1852                 filter->enables |=
1853                         HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1854                 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
1855                 if (ret != 0) {
1856                         rte_flow_error_set(error, -ret,
1857                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1858                                            "Failed to create ntuple filter");
1859                         goto free_filter;
1860                 }
1861         }
1862
1863         if (BNXT_RFS_NEEDS_VNIC(bp))
1864                 vnic = find_matching_vnic(bp, filter);
1865         else
1866                 vnic = BNXT_GET_DEFAULT_VNIC(bp);
1867 done:
1868         if (!ret || update_flow) {
1869                 flow->filter = filter;
1870                 flow->vnic = vnic;
1871                 if (update_flow) {
1872                         ret = -EXDEV;
1873                         goto free_flow;
1874                 }
1875
1876                 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1877                         PMD_DRV_LOG(DEBUG,
1878                                     "Mark action: mark id 0x%x, flow id 0x%x\n",
1879                                     filter->mark, filter->flow_id);
1880
1881                         /* TCAM and EM should be 16-bit only.
1882                          * Other modes not supported.
1883                          */
1884                         flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1885                         if (bp->mark_table[flow_id].valid) {
1886                                 rte_flow_error_set(error, EEXIST,
1887                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1888                                                    NULL,
1889                                                    "Flow with mark id exists");
1890                                 bnxt_clear_one_vnic_filter(bp, filter);
1891                                 goto free_filter;
1892                         }
1893                         bp->mark_table[flow_id].valid = true;
1894                         bp->mark_table[flow_id].mark_id = filter->mark;
1895                 }
1896
1897                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
1898                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1899
1900                 if (BNXT_FLOW_XSTATS_EN(bp))
1901                         bp->flow_stat->flow_count++;
1902                 bnxt_release_flow_lock(bp);
1903                 bnxt_setup_flow_counter(bp);
1904                 PMD_DRV_LOG(DEBUG, "Successfully created flow.\n");
1905                 return flow;
1906         }
1907
1908 free_filter:
1909         bnxt_free_filter(bp, filter);
1910 free_flow:
1911         if (ret == -EEXIST)
1912                 rte_flow_error_set(error, ret,
1913                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1914                                    "Matching Flow exists.");
1915         else if (ret == -EXDEV)
1916                 rte_flow_error_set(error, 0,
1917                                    RTE_FLOW_ERROR_TYPE_NONE, NULL,
1918                                    "Flow with pattern exists, updating destination queue");
1919         else if (!rte_errno)
1920                 rte_flow_error_set(error, -ret,
1921                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1922                                    "Failed to create flow.");
1923         rte_free(flow);
1924         flow = NULL;
1925         bnxt_release_flow_lock(bp);
1926         return flow;
1927 }
1928
1929 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
1930                                                struct bnxt_filter_info *filter,
1931                                                struct rte_flow_error *error)
1932 {
1933         uint16_t tun_dst_fid;
1934         uint32_t tun_type;
1935         int ret = 0;
1936
1937         ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1938         if (ret) {
1939                 rte_flow_error_set(error, -ret,
1940                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1941                                    "Unable to query tunnel to VF");
1942                 return ret;
1943         }
1944         if (tun_type == (1U << filter->tunnel_type)) {
1945                 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
1946                                                      &tun_dst_fid);
1947                 if (ret) {
1948                         rte_flow_error_set(error, -ret,
1949                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1950                                            NULL,
1951                                            "tunnel_redirect info cmd fail");
1952                         return ret;
1953                 }
1954                 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
1955                             tun_dst_fid + bp->first_vf_id, bp->fw_fid);
1956
1957                 /* Tunnel doesn't belong to this VF, so don't send HWRM
1958                  * cmd, just delete the flow from driver
1959                  */
1960                 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id))
1961                         PMD_DRV_LOG(ERR,
1962                                     "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
1963                 else
1964                         ret = bnxt_hwrm_tunnel_redirect_free(bp,
1965                                                         filter->tunnel_type);
1966         }
1967         return ret;
1968 }
1969
1970 static int
1971 _bnxt_flow_destroy(struct bnxt *bp,
1972                    struct rte_flow *flow,
1973                     struct rte_flow_error *error)
1974 {
1975         struct bnxt_filter_info *filter;
1976         struct bnxt_vnic_info *vnic;
1977         int ret = 0;
1978         uint32_t flow_id;
1979
1980         filter = flow->filter;
1981         vnic = flow->vnic;
1982
1983         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1984             filter->enables == filter->tunnel_type) {
1985                 ret = bnxt_handle_tunnel_redirect_destroy(bp, filter, error);
1986                 if (!ret)
1987                         goto done;
1988                 else
1989                         return ret;
1990         }
1991
1992         ret = bnxt_match_filter(bp, filter);
1993         if (ret == 0)
1994                 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
1995
1996         if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1997                 flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1998                 memset(&bp->mark_table[flow_id], 0,
1999                        sizeof(bp->mark_table[flow_id]));
2000                 filter->flow_id = 0;
2001         }
2002
2003         ret = bnxt_clear_one_vnic_filter(bp, filter);
2004
2005 done:
2006         if (!ret) {
2007                 /* If it is a L2 drop filter, when the filter is created,
2008                  * the FW updates the BC/MC records.
2009                  * Once this filter is removed, issue the set_rx_mask command
2010                  * to reset the BC/MC records in the HW to the settings
2011                  * before the drop counter is created.
2012                  */
2013                 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
2014                         bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
2015
2016                 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
2017                 bnxt_free_filter(bp, filter);
2018                 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
2019                 rte_free(flow);
2020                 if (BNXT_FLOW_XSTATS_EN(bp))
2021                         bp->flow_stat->flow_count--;
2022
2023                 /* If this was the last flow associated with this vnic,
2024                  * switch the queue back to RSS pool.
2025                  */
2026                 if (vnic && !vnic->func_default &&
2027                     STAILQ_EMPTY(&vnic->flow_list)) {
2028                         rte_free(vnic->fw_grp_ids);
2029                         if (vnic->rx_queue_cnt > 1)
2030                                 bnxt_hwrm_vnic_ctx_free(bp, vnic);
2031
2032                         bnxt_hwrm_vnic_free(bp, vnic);
2033                         vnic->rx_queue_cnt = 0;
2034                         bp->nr_vnics--;
2035                 }
2036         } else {
2037                 rte_flow_error_set(error, -ret,
2038                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2039                                    "Failed to destroy flow.");
2040         }
2041
2042         return ret;
2043 }
2044
2045 static int
2046 bnxt_flow_destroy(struct rte_eth_dev *dev,
2047                   struct rte_flow *flow,
2048                   struct rte_flow_error *error)
2049 {
2050         struct bnxt *bp = dev->data->dev_private;
2051         int ret = 0;
2052
2053         bnxt_acquire_flow_lock(bp);
2054         if (!flow) {
2055                 rte_flow_error_set(error, EINVAL,
2056                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2057                                    "Invalid flow: failed to destroy flow.");
2058                 bnxt_release_flow_lock(bp);
2059                 return -EINVAL;
2060         }
2061
2062         if (!flow->filter) {
2063                 rte_flow_error_set(error, EINVAL,
2064                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2065                                    "Invalid flow: failed to destroy flow.");
2066                 bnxt_release_flow_lock(bp);
2067                 return -EINVAL;
2068         }
2069         ret = _bnxt_flow_destroy(bp, flow, error);
2070         bnxt_release_flow_lock(bp);
2071
2072         return ret;
2073 }
2074
2075 void bnxt_cancel_fc_thread(struct bnxt *bp)
2076 {
2077         bp->flags &= ~BNXT_FLAG_FC_THREAD;
2078         rte_eal_alarm_cancel(bnxt_flow_cnt_alarm_cb, (void *)bp);
2079 }
2080
2081 static int
2082 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
2083 {
2084         struct bnxt *bp = dev->data->dev_private;
2085         struct bnxt_vnic_info *vnic;
2086         struct rte_flow *flow;
2087         unsigned int i;
2088         int ret = 0;
2089
2090         bnxt_acquire_flow_lock(bp);
2091         for (i = 0; i < bp->max_vnics; i++) {
2092                 vnic = &bp->vnic_info[i];
2093                 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
2094                         continue;
2095
2096                 while (!STAILQ_EMPTY(&vnic->flow_list)) {
2097                         flow = STAILQ_FIRST(&vnic->flow_list);
2098
2099                         if (!flow->filter)
2100                                 continue;
2101
2102                         ret = _bnxt_flow_destroy(bp, flow, error);
2103                         if (ret)
2104                                 break;
2105                 }
2106         }
2107
2108         bnxt_cancel_fc_thread(bp);
2109         bnxt_release_flow_lock(bp);
2110
2111         return ret;
2112 }
2113
2114 const struct rte_flow_ops bnxt_flow_ops = {
2115         .validate = bnxt_flow_validate,
2116         .create = bnxt_flow_create,
2117         .destroy = bnxt_flow_destroy,
2118         .flush = bnxt_flow_flush,
2119 };