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 {
 924         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 925         uint64_t rx_offloads = dev_conf->rxmode.offloads;
 926         int rc;
 927
 928         if (bp->nr_vnics > bp->max_vnics - 1)
 929                 return -ENOMEM;
 930
 931         rc = bnxt_vnic_grp_alloc(bp, vnic);
 932         if (rc)
 933                 goto ret;
 934
 935         rc = bnxt_hwrm_vnic_alloc(bp, vnic);
 936         if (rc) {
 937                 PMD_DRV_LOG(ERR, "HWRM vnic alloc failure rc: %x\n", rc);
 938                 goto ret;
 939         }
 940         bp->nr_vnics++;
 941
 942         /* RSS context is required only when there is more than one RSS ring */
 943         if (vnic->rx_queue_cnt > 1) {
 944                 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0 /* ctx_idx 0 */);
 945                 if (rc) {
 946                         PMD_DRV_LOG(ERR,
 947                                     "HWRM vnic ctx alloc failure: %x\n", rc);
 948                         goto ret;
 949                 }
 950         } else {
 951                 PMD_DRV_LOG(DEBUG, "No RSS context required\n");
 952         }
 953
 954         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 955                 vnic->vlan_strip = true;
 956         else
 957                 vnic->vlan_strip = false;
 958
 959         rc = bnxt_hwrm_vnic_cfg(bp, vnic);
 960         if (rc)
 961                 goto ret;
 962
 963         bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
 964
 965 ret:
 966         return rc;
 967 }
 968
 969 static int match_vnic_rss_cfg(struct bnxt *bp,
 970                               struct bnxt_vnic_info *vnic,
 971                               const struct rte_flow_action_rss *rss)
 972 {
 973         unsigned int match = 0, i;
 974
 975         if (vnic->rx_queue_cnt != rss->queue_num)
 976                 return -EINVAL;
 977
 978         for (i = 0; i < rss->queue_num; i++) {
 979                 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt &&
 980                     !bp->rx_queues[rss->queue[i]]->rx_started)
 981                         return -EINVAL;
 982         }
 983
 984         for (i = 0; i < vnic->rx_queue_cnt; i++) {
 985                 int j;
 986
 987                 for (j = 0; j < vnic->rx_queue_cnt; j++) {
 988                         if (bp->grp_info[rss->queue[i]].fw_grp_id ==
 989                             vnic->fw_grp_ids[j])
 990                                 match++;
 991                 }
 992         }
 993
 994         if (match != vnic->rx_queue_cnt) {
 995                 PMD_DRV_LOG(ERR,
 996                             "VNIC queue count %d vs queues matched %d\n",
 997                             match, vnic->rx_queue_cnt);
 998                 return -EINVAL;
 999         }
1000
1001         return 0;
1002 }
1003
1004 static void
1005 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
1006                             struct bnxt_filter_info *filter1,
1007                             int use_ntuple)
1008 {
1009         if (!use_ntuple &&
1010             !(filter->valid_flags &
1011               ~(BNXT_FLOW_L2_DST_VALID_FLAG |
1012                 BNXT_FLOW_L2_SRC_VALID_FLAG |
1013                 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
1014                 BNXT_FLOW_L2_INNER_DST_VALID_FLAG |
1015                 BNXT_FLOW_L2_DROP_FLAG |
1016                 BNXT_FLOW_PARSE_INNER_FLAG))) {
1017                 filter->flags = filter1->flags;
1018                 filter->enables = filter1->enables;
1019                 filter->filter_type = HWRM_CFA_L2_FILTER;
1020                 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN);
1021                 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
1022                 filter->pri_hint = filter1->pri_hint;
1023                 filter->l2_filter_id_hint = filter1->l2_filter_id_hint;
1024         }
1025         filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1026         filter->l2_ref_cnt = filter1->l2_ref_cnt;
1027         filter->flow_id = filter1->flow_id;
1028         PMD_DRV_LOG(DEBUG,
1029                 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
1030                 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
1031 }
1032
1033 static int
1034 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
1035                              const struct rte_flow_item pattern[],
1036                              const struct rte_flow_action actions[],
1037                              const struct rte_flow_attr *attr,
1038                              struct rte_flow_error *error,
1039                              struct bnxt_filter_info *filter)
1040 {
1041         const struct rte_flow_action *act =
1042                 bnxt_flow_non_void_action(actions);
1043         struct bnxt *bp = dev->data->dev_private;
1044         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
1045         struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL;
1046         const struct rte_flow_action_queue *act_q;
1047         const struct rte_flow_action_vf *act_vf;
1048         struct bnxt_filter_info *filter1 = NULL;
1049         const struct rte_flow_action_rss *rss;
1050         struct bnxt_rx_queue *rxq = NULL;
1051         int dflt_vnic, vnic_id;
1052         unsigned int rss_idx;
1053         uint32_t vf = 0, i;
1054         int rc, use_ntuple;
1055
1056         rc =
1057         bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
1058         if (rc != 0)
1059                 goto ret;
1060
1061         rc = bnxt_flow_parse_attr(attr, error);
1062         if (rc != 0)
1063                 goto ret;
1064
1065         /* Since we support ingress attribute only - right now. */
1066         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1067                 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
1068
1069         use_ntuple = bnxt_filter_type_check(pattern, error);
1070
1071 start:
1072         switch (act->type) {
1073         case RTE_FLOW_ACTION_TYPE_QUEUE:
1074                 /* Allow this flow. Redirect to a VNIC. */
1075                 act_q = (const struct rte_flow_action_queue *)act->conf;
1076                 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
1077                         rte_flow_error_set(error,
1078                                            EINVAL,
1079                                            RTE_FLOW_ERROR_TYPE_ACTION,
1080                                            act,
1081                                            "Invalid queue ID.");
1082                         rc = -rte_errno;
1083                         goto ret;
1084                 }
1085                 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
1086
1087                 if (use_ntuple && !BNXT_RFS_NEEDS_VNIC(bp)) {
1088                         filter->flags =
1089                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DEST_RFS_RING_IDX;
1090                         filter->dst_id = act_q->index;
1091                         goto skip_vnic_alloc;
1092                 }
1093
1094                 vnic_id = attr->group;
1095                 if (!vnic_id) {
1096                         PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1097                         vnic_id = act_q->index;
1098                 }
1099
1100                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1101
1102                 vnic = &bp->vnic_info[vnic_id];
1103                 if (vnic->rx_queue_cnt) {
1104                         if (vnic->start_grp_id != act_q->index) {
1105                                 PMD_DRV_LOG(ERR,
1106                                             "VNIC already in use\n");
1107                                 rte_flow_error_set(error,
1108                                                    EINVAL,
1109                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1110                                                    act,
1111                                                    "VNIC already in use");
1112                                 rc = -rte_errno;
1113                                 goto ret;
1114                         }
1115                         goto use_vnic;
1116                 }
1117
1118                 rxq = bp->rx_queues[act_q->index];
1119
1120                 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1121                     vnic->fw_vnic_id != INVALID_HW_RING_ID)
1122                         goto use_vnic;
1123
1124                 if (!rxq) {
1125                         PMD_DRV_LOG(ERR,
1126                                     "Queue invalid or used with other VNIC\n");
1127                         rte_flow_error_set(error,
1128                                            EINVAL,
1129                                            RTE_FLOW_ERROR_TYPE_ACTION,
1130                                            act,
1131                                            "Queue invalid queue or in use");
1132                         rc = -rte_errno;
1133                         goto ret;
1134                 }
1135
1136                 rxq->vnic = vnic;
1137                 rxq->rx_started = 1;
1138                 vnic->rx_queue_cnt++;
1139                 vnic->start_grp_id = act_q->index;
1140                 vnic->end_grp_id = act_q->index;
1141                 vnic->func_default = 0; //This is not a default VNIC.
1142
1143                 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1144
1145                 rc = bnxt_vnic_prep(bp, vnic);
1146                 if (rc)  {
1147                         rte_flow_error_set(error,
1148                                            EINVAL,
1149                                            RTE_FLOW_ERROR_TYPE_ACTION,
1150                                            act,
1151                                            "VNIC prep fail");
1152                         rc = -rte_errno;
1153                         goto ret;
1154                 }
1155
1156                 PMD_DRV_LOG(DEBUG,
1157                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1158                             act_q->index, vnic, vnic->fw_grp_ids);
1159
1160 use_vnic:
1161                 vnic->ff_pool_idx = vnic_id;
1162                 PMD_DRV_LOG(DEBUG,
1163                             "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1164                 filter->dst_id = vnic->fw_vnic_id;
1165 skip_vnic_alloc:
1166                 /* For ntuple filter, create the L2 filter with default VNIC.
1167                  * The user specified redirect queue will be set while creating
1168                  * the ntuple filter in hardware.
1169                  */
1170                 vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
1171                 if (use_ntuple)
1172                         filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1173                 else
1174                         filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1175                 if (filter1 == NULL) {
1176                         rte_flow_error_set(error,
1177                                            ENOSPC,
1178                                            RTE_FLOW_ERROR_TYPE_ACTION,
1179                                            act,
1180                                            "Filter not available");
1181                         rc = -rte_errno;
1182                         goto ret;
1183                 }
1184
1185                 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1186                             filter, filter1, filter1->l2_ref_cnt);
1187                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1188                 break;
1189         case RTE_FLOW_ACTION_TYPE_DROP:
1190                 vnic0 = &bp->vnic_info[0];
1191                 filter->dst_id = vnic0->fw_vnic_id;
1192                 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
1193                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1194                 if (filter1 == NULL) {
1195                         rte_flow_error_set(error,
1196                                            ENOSPC,
1197                                            RTE_FLOW_ERROR_TYPE_ACTION,
1198                                            act,
1199                                            "Filter not available");
1200                         rc = -rte_errno;
1201                         goto ret;
1202                 }
1203
1204                 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1205                         filter->flags =
1206                                 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1207                 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1208                         filter->flags =
1209                                 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1210
1211                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1212                 break;
1213         case RTE_FLOW_ACTION_TYPE_COUNT:
1214                 vnic0 = &bp->vnic_info[0];
1215                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1216                 if (filter1 == NULL) {
1217                         rte_flow_error_set(error,
1218                                            ENOSPC,
1219                                            RTE_FLOW_ERROR_TYPE_ACTION,
1220                                            act,
1221                                            "New filter not available");
1222                         rc = -rte_errno;
1223                         goto ret;
1224                 }
1225
1226                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1227                 filter->flow_id = filter1->flow_id;
1228                 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1229                 break;
1230         case RTE_FLOW_ACTION_TYPE_VF:
1231                 act_vf = (const struct rte_flow_action_vf *)act->conf;
1232                 vf = act_vf->id;
1233
1234                 if (filter->tunnel_type ==
1235                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1236                     filter->tunnel_type ==
1237                     CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1238                         /* If issued on a VF, ensure id is 0 and is trusted */
1239                         if (BNXT_VF(bp)) {
1240                                 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1241                                         rte_flow_error_set(error, EINVAL,
1242                                                 RTE_FLOW_ERROR_TYPE_ACTION,
1243                                                 act,
1244                                                 "Incorrect VF");
1245                                         rc = -rte_errno;
1246                                         goto ret;
1247                                 }
1248                         }
1249
1250                         filter->enables |= filter->tunnel_type;
1251                         filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1252                         goto done;
1253                 }
1254
1255                 if (vf >= bp->pdev->max_vfs) {
1256                         rte_flow_error_set(error,
1257                                            EINVAL,
1258                                            RTE_FLOW_ERROR_TYPE_ACTION,
1259                                            act,
1260                                            "Incorrect VF id!");
1261                         rc = -rte_errno;
1262                         goto ret;
1263                 }
1264
1265                 filter->mirror_vnic_id =
1266                 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1267                 if (dflt_vnic < 0) {
1268                         /* This simply indicates there's no driver loaded.
1269                          * This is not an error.
1270                          */
1271                         rte_flow_error_set(error,
1272                                            EINVAL,
1273                                            RTE_FLOW_ERROR_TYPE_ACTION,
1274                                            act,
1275                                            "Unable to get default VNIC for VF");
1276                         rc = -rte_errno;
1277                         goto ret;
1278                 }
1279
1280                 filter->mirror_vnic_id = dflt_vnic;
1281                 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1282
1283                 vnic0 = &bp->vnic_info[0];
1284                 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1285                 if (filter1 == NULL) {
1286                         rte_flow_error_set(error,
1287                                            ENOSPC,
1288                                            RTE_FLOW_ERROR_TYPE_ACTION,
1289                                            act,
1290                                            "New filter not available");
1291                         rc = -rte_errno;
1292                         goto ret;
1293                 }
1294
1295                 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1296                 filter->flow_id = filter1->flow_id;
1297                 break;
1298         case RTE_FLOW_ACTION_TYPE_RSS:
1299                 rss = (const struct rte_flow_action_rss *)act->conf;
1300
1301                 vnic_id = attr->group;
1302
1303                 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1304                 vnic = &bp->vnic_info[vnic_id];
1305
1306                 /* Check if requested RSS config matches RSS config of VNIC
1307                  * only if it is not a fresh VNIC configuration.
1308                  * Otherwise the existing VNIC configuration can be used.
1309                  */
1310                 if (vnic->rx_queue_cnt) {
1311                         rc = match_vnic_rss_cfg(bp, vnic, rss);
1312                         if (rc) {
1313                                 PMD_DRV_LOG(ERR,
1314                                             "VNIC and RSS config mismatch\n");
1315                                 rte_flow_error_set(error,
1316                                                    EINVAL,
1317                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1318                                                    act,
1319                                                    "VNIC and RSS cfg mismatch");
1320                                 rc = -rte_errno;
1321                                 goto ret;
1322                         }
1323                         goto vnic_found;
1324                 }
1325
1326                 for (i = 0; i < rss->queue_num; i++) {
1327                         PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1328                                     rss->queue[i]);
1329
1330                         if (!rss->queue[i] ||
1331                             rss->queue[i] >= bp->rx_nr_rings ||
1332                             !bp->rx_queues[rss->queue[i]]) {
1333                                 rte_flow_error_set(error,
1334                                                    EINVAL,
1335                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1336                                                    act,
1337                                                    "Invalid queue ID for RSS");
1338                                 rc = -rte_errno;
1339                                 goto ret;
1340                         }
1341                         rxq = bp->rx_queues[rss->queue[i]];
1342
1343                         if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1344                             INVALID_HW_RING_ID) {
1345                                 PMD_DRV_LOG(ERR,
1346                                             "queue active with other VNIC\n");
1347                                 rte_flow_error_set(error,
1348                                                    EINVAL,
1349                                                    RTE_FLOW_ERROR_TYPE_ACTION,
1350                                                    act,
1351                                                    "Invalid queue ID for RSS");
1352                                 rc = -rte_errno;
1353                                 goto ret;
1354                         }
1355
1356                         rxq->vnic = vnic;
1357                         rxq->rx_started = 1;
1358                         vnic->rx_queue_cnt++;
1359                 }
1360
1361                 vnic->start_grp_id = rss->queue[0];
1362                 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1363                 vnic->func_default = 0; //This is not a default VNIC.
1364
1365                 rc = bnxt_vnic_prep(bp, vnic);
1366                 if (rc) {
1367                         rte_flow_error_set(error,
1368                                            EINVAL,
1369                                            RTE_FLOW_ERROR_TYPE_ACTION,
1370                                            act,
1371                                            "VNIC prep fail");
1372                         rc = -rte_errno;
1373                         goto ret;
1374                 }
1375
1376                 PMD_DRV_LOG(DEBUG,
1377                             "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1378                             vnic_id, vnic, vnic->fw_grp_ids);
1379
1380                 vnic->ff_pool_idx = vnic_id;
1381                 PMD_DRV_LOG(DEBUG,
1382                             "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1383
1384                 /* This can be done only after vnic_grp_alloc is done. */
1385                 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1386                         vnic->fw_grp_ids[i] =
1387                                 bp->grp_info[rss->queue[i]].fw_grp_id;
1388                         /* Make sure vnic0 does not use these rings. */
1389                         bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1390                                 INVALID_HW_RING_ID;
1391                 }
1392
1393                 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1394                         for (i = 0; i < vnic->rx_queue_cnt; i++)
1395                                 vnic->rss_table[rss_idx++] =
1396                                         vnic->fw_grp_ids[i];
1397                 }
1398
1399                 /* Configure RSS only if the queue count is > 1 */
1400                 if (vnic->rx_queue_cnt > 1) {
1401                         vnic->hash_type =
1402                                 bnxt_rte_to_hwrm_hash_types(rss->types);
1403                         vnic->hash_mode =
1404                         bnxt_rte_to_hwrm_hash_level(bp, rss->types, rss->level);
1405
1406                         if (!rss->key_len) {
1407                                 /* If hash key has not been specified,
1408                                  * use random hash key.
1409                                  */
1410                                 bnxt_prandom_bytes(vnic->rss_hash_key,
1411                                                    HW_HASH_KEY_SIZE);
1412                         } else {
1413                                 if (rss->key_len > HW_HASH_KEY_SIZE)
1414                                         memcpy(vnic->rss_hash_key,
1415                                                rss->key,
1416                                                HW_HASH_KEY_SIZE);
1417                                 else
1418                                         memcpy(vnic->rss_hash_key,
1419                                                rss->key,
1420                                                rss->key_len);
1421                         }
1422                         bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1423                 } else {
1424                         PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1425                 }
1426
1427 vnic_found:
1428                 filter->dst_id = vnic->fw_vnic_id;
1429                 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1430                 if (filter1 == NULL) {
1431                         rte_flow_error_set(error,
1432                                            ENOSPC,
1433                                            RTE_FLOW_ERROR_TYPE_ACTION,
1434                                            act,
1435                                            "New filter not available");
1436                         rc = -rte_errno;
1437                         goto ret;
1438                 }
1439
1440                 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1441                 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1442                 break;
1443         case RTE_FLOW_ACTION_TYPE_MARK:
1444                 if (bp->mark_table == NULL) {
1445                         rte_flow_error_set(error,
1446                                            ENOMEM,
1447                                            RTE_FLOW_ERROR_TYPE_ACTION,
1448                                            act,
1449                                            "Mark table not allocated.");
1450                         rc = -rte_errno;
1451                         goto ret;
1452                 }
1453
1454                 if (bp->flags & BNXT_FLAG_RX_VECTOR_PKT_MODE) {
1455                         PMD_DRV_LOG(DEBUG,
1456                                     "Disabling vector processing for mark\n");
1457                         bp->eth_dev->rx_pkt_burst = bnxt_recv_pkts;
1458                         bp->flags &= ~BNXT_FLAG_RX_VECTOR_PKT_MODE;
1459                 }
1460
1461                 filter->valid_flags |= BNXT_FLOW_MARK_FLAG;
1462                 filter->mark = ((const struct rte_flow_action_mark *)
1463                                 act->conf)->id;
1464                 PMD_DRV_LOG(DEBUG, "Mark the flow %d\n", filter->mark);
1465                 break;
1466         default:
1467                 rte_flow_error_set(error,
1468                                    EINVAL,
1469                                    RTE_FLOW_ERROR_TYPE_ACTION,
1470                                    act,
1471                                    "Invalid action.");
1472                 rc = -rte_errno;
1473                 goto ret;
1474         }
1475
1476 done:
1477         act = bnxt_flow_non_void_action(++act);
1478         while (act->type != RTE_FLOW_ACTION_TYPE_END)
1479                 goto start;
1480
1481         return rc;
1482 ret:
1483
1484         if (filter1) {
1485                 bnxt_hwrm_clear_l2_filter(bp, filter1);
1486                 bnxt_free_filter(bp, filter1);
1487         }
1488
1489         if (rte_errno)  {
1490                 if (vnic && STAILQ_EMPTY(&vnic->filter))
1491                         vnic->rx_queue_cnt = 0;
1492
1493                 if (rxq && !vnic->rx_queue_cnt)
1494                         rxq->vnic = &bp->vnic_info[0];
1495         }
1496         return -rte_errno;
1497 }
1498
1499 static
1500 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp,
1501                                           struct bnxt_filter_info *filter)
1502 {
1503         struct bnxt_vnic_info *vnic = NULL;
1504         unsigned int i;
1505
1506         for (i = 0; i < bp->max_vnics; i++) {
1507                 vnic = &bp->vnic_info[i];
1508                 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1509                     filter->dst_id == vnic->fw_vnic_id) {
1510                         PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n",
1511                                     vnic->ff_pool_idx);
1512                         return vnic;
1513                 }
1514         }
1515         return NULL;
1516 }
1517
1518 static int
1519 bnxt_flow_validate(struct rte_eth_dev *dev,
1520                    const struct rte_flow_attr *attr,
1521                    const struct rte_flow_item pattern[],
1522                    const struct rte_flow_action actions[],
1523                    struct rte_flow_error *error)
1524 {
1525         struct bnxt *bp = dev->data->dev_private;
1526         struct bnxt_vnic_info *vnic = NULL;
1527         struct bnxt_filter_info *filter;
1528         int ret = 0;
1529
1530         bnxt_acquire_flow_lock(bp);
1531         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1532         if (ret != 0) {
1533                 bnxt_release_flow_lock(bp);
1534                 return ret;
1535         }
1536
1537         filter = bnxt_get_unused_filter(bp);
1538         if (filter == NULL) {
1539                 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
1540                 bnxt_release_flow_lock(bp);
1541                 return -ENOMEM;
1542         }
1543
1544         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1545                                            error, filter);
1546         if (ret)
1547                 goto exit;
1548
1549         vnic = find_matching_vnic(bp, filter);
1550         if (vnic) {
1551                 if (STAILQ_EMPTY(&vnic->filter)) {
1552                         rte_free(vnic->fw_grp_ids);
1553                         bnxt_hwrm_vnic_ctx_free(bp, vnic);
1554                         bnxt_hwrm_vnic_free(bp, vnic);
1555                         vnic->rx_queue_cnt = 0;
1556                         bp->nr_vnics--;
1557                         PMD_DRV_LOG(DEBUG, "Free VNIC\n");
1558                 }
1559         }
1560
1561         if (filter->filter_type == HWRM_CFA_EM_FILTER)
1562                 bnxt_hwrm_clear_em_filter(bp, filter);
1563         else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1564                 bnxt_hwrm_clear_ntuple_filter(bp, filter);
1565         else
1566                 bnxt_hwrm_clear_l2_filter(bp, filter);
1567
1568 exit:
1569         /* No need to hold on to this filter if we are just validating flow */
1570         bnxt_free_filter(bp, filter);
1571         bnxt_release_flow_lock(bp);
1572
1573         return ret;
1574 }
1575
1576 static void
1577 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1578                    struct bnxt_filter_info *new_filter)
1579 {
1580         /* Clear the new L2 filter that was created in the previous step in
1581          * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1582          * filter which points to the new destination queue and so we clear
1583          * the previous L2 filter. For ntuple filters, we are going to reuse
1584          * the old L2 filter and create new NTUPLE filter with this new
1585          * destination queue subsequently during bnxt_flow_create. So we
1586          * decrement the ref cnt of the L2 filter that would've been bumped
1587          * up previously in bnxt_validate_and_parse_flow as the old n-tuple
1588          * filter that was referencing it will be deleted now.
1589          */
1590         bnxt_hwrm_clear_l2_filter(bp, old_filter);
1591         if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1592                 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1593         } else {
1594                 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1595                         bnxt_hwrm_clear_em_filter(bp, old_filter);
1596                 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1597                         bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1598         }
1599 }
1600
1601 static int
1602 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1603 {
1604         struct bnxt_filter_info *mf;
1605         struct rte_flow *flow;
1606         int i;
1607
1608         for (i = bp->max_vnics - 1; i >= 0; i--) {
1609                 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1610
1611                 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1612                         continue;
1613
1614                 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1615                         mf = flow->filter;
1616
1617                         if (mf->filter_type == nf->filter_type &&
1618                             mf->flags == nf->flags &&
1619                             mf->src_port == nf->src_port &&
1620                             mf->src_port_mask == nf->src_port_mask &&
1621                             mf->dst_port == nf->dst_port &&
1622                             mf->dst_port_mask == nf->dst_port_mask &&
1623                             mf->ip_protocol == nf->ip_protocol &&
1624                             mf->ip_addr_type == nf->ip_addr_type &&
1625                             mf->ethertype == nf->ethertype &&
1626                             mf->vni == nf->vni &&
1627                             mf->tunnel_type == nf->tunnel_type &&
1628                             mf->l2_ovlan == nf->l2_ovlan &&
1629                             mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1630                             mf->l2_ivlan == nf->l2_ivlan &&
1631                             mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1632                             !memcmp(mf->l2_addr, nf->l2_addr,
1633                                     RTE_ETHER_ADDR_LEN) &&
1634                             !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1635                                     RTE_ETHER_ADDR_LEN) &&
1636                             !memcmp(mf->src_macaddr, nf->src_macaddr,
1637                                     RTE_ETHER_ADDR_LEN) &&
1638                             !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1639                                     RTE_ETHER_ADDR_LEN) &&
1640                             !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1641                                     sizeof(nf->src_ipaddr)) &&
1642                             !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1643                                     sizeof(nf->src_ipaddr_mask)) &&
1644                             !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1645                                     sizeof(nf->dst_ipaddr)) &&
1646                             !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1647                                     sizeof(nf->dst_ipaddr_mask))) {
1648                                 if (mf->dst_id == nf->dst_id)
1649                                         return -EEXIST;
1650                                 /* Free the old filter, update flow
1651                                  * with new filter
1652                                  */
1653                                 bnxt_update_filter(bp, mf, nf);
1654                                 STAILQ_REMOVE(&vnic->filter, mf,
1655                                               bnxt_filter_info, next);
1656                                 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1657                                 bnxt_free_filter(bp, mf);
1658                                 flow->filter = nf;
1659                                 return -EXDEV;
1660                         }
1661                 }
1662         }
1663         return 0;
1664 }
1665
1666 static void
1667 bnxt_setup_flow_counter(struct bnxt *bp)
1668 {
1669         if (bp->fw_cap & BNXT_FW_CAP_ADV_FLOW_COUNTERS &&
1670             !(bp->flags & BNXT_FLAG_FC_THREAD) && BNXT_FLOW_XSTATS_EN(bp)) {
1671                 rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1672                                   bnxt_flow_cnt_alarm_cb,
1673                                   (void *)bp);
1674                 bp->flags |= BNXT_FLAG_FC_THREAD;
1675         }
1676 }
1677
1678 void bnxt_flow_cnt_alarm_cb(void *arg)
1679 {
1680         int rc = 0;
1681         struct bnxt *bp = arg;
1682
1683         if (!bp->flow_stat->rx_fc_out_tbl.va) {
1684                 PMD_DRV_LOG(ERR, "bp->flow_stat->rx_fc_out_tbl.va is NULL?\n");
1685                 bnxt_cancel_fc_thread(bp);
1686                 return;
1687         }
1688
1689         if (!bp->flow_stat->flow_count) {
1690                 bnxt_cancel_fc_thread(bp);
1691                 return;
1692         }
1693
1694         if (!bp->eth_dev->data->dev_started) {
1695                 bnxt_cancel_fc_thread(bp);
1696                 return;
1697         }
1698
1699         rc = bnxt_flow_stats_req(bp);
1700         if (rc) {
1701                 PMD_DRV_LOG(ERR, "Flow stat alarm not rescheduled.\n");
1702                 return;
1703         }
1704
1705         rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1706                           bnxt_flow_cnt_alarm_cb,
1707                           (void *)bp);
1708 }
1709
1710
1711 static struct rte_flow *
1712 bnxt_flow_create(struct rte_eth_dev *dev,
1713                  const struct rte_flow_attr *attr,
1714                  const struct rte_flow_item pattern[],
1715                  const struct rte_flow_action actions[],
1716                  struct rte_flow_error *error)
1717 {
1718         struct bnxt *bp = dev->data->dev_private;
1719         struct bnxt_vnic_info *vnic = NULL;
1720         struct bnxt_filter_info *filter;
1721         bool update_flow = false;
1722         struct rte_flow *flow;
1723         int ret = 0;
1724         uint32_t tun_type, flow_id;
1725
1726         if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1727                 rte_flow_error_set(error, EINVAL,
1728                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1729                                    "Failed to create flow, Not a Trusted VF!");
1730                 return NULL;
1731         }
1732
1733         if (!dev->data->dev_started) {
1734                 rte_flow_error_set(error,
1735                                    EINVAL,
1736                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1737                                    NULL,
1738                                    "Device must be started");
1739                 return NULL;
1740         }
1741
1742         flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1743         if (!flow) {
1744                 rte_flow_error_set(error, ENOMEM,
1745                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1746                                    "Failed to allocate memory");
1747                 return flow;
1748         }
1749
1750         bnxt_acquire_flow_lock(bp);
1751         ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1752         if (ret != 0) {
1753                 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1754                 goto free_flow;
1755         }
1756
1757         filter = bnxt_get_unused_filter(bp);
1758         if (filter == NULL) {
1759                 rte_flow_error_set(error, ENOSPC,
1760                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1761                                    "Not enough resources for a new flow");
1762                 goto free_flow;
1763         }
1764
1765         ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1766                                            error, filter);
1767         if (ret != 0)
1768                 goto free_filter;
1769
1770         ret = bnxt_match_filter(bp, filter);
1771         if (ret == -EEXIST) {
1772                 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1773                 /* Clear the filter that was created as part of
1774                  * validate_and_parse_flow() above
1775                  */
1776                 bnxt_hwrm_clear_l2_filter(bp, filter);
1777                 goto free_filter;
1778         } else if (ret == -EXDEV) {
1779                 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1780                 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1781                 update_flow = true;
1782         }
1783
1784         /* If tunnel redirection to a VF/PF is specified then only tunnel_type
1785          * is set and enable is set to the tunnel type. Issue hwrm cmd directly
1786          * in such a case.
1787          */
1788         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1789             filter->enables == filter->tunnel_type) {
1790                 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1791                 if (ret) {
1792                         rte_flow_error_set(error, -ret,
1793                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1794                                            "Unable to query tunnel to VF");
1795                         goto free_filter;
1796                 }
1797                 if (tun_type == (1U << filter->tunnel_type)) {
1798                         ret =
1799                         bnxt_hwrm_tunnel_redirect_free(bp,
1800                                                        filter->tunnel_type);
1801                         if (ret) {
1802                                 PMD_DRV_LOG(ERR,
1803                                             "Unable to free existing tunnel\n");
1804                                 rte_flow_error_set(error, -ret,
1805                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1806                                                    NULL,
1807                                                    "Unable to free preexisting "
1808                                                    "tunnel on VF");
1809                                 goto free_filter;
1810                         }
1811                 }
1812                 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
1813                 if (ret) {
1814                         rte_flow_error_set(error, -ret,
1815                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1816                                            "Unable to redirect tunnel to VF");
1817                         goto free_filter;
1818                 }
1819                 vnic = &bp->vnic_info[0];
1820                 goto done;
1821         }
1822
1823         if (filter->filter_type == HWRM_CFA_EM_FILTER) {
1824                 filter->enables |=
1825                         HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1826                 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
1827                 if (ret != 0) {
1828                         rte_flow_error_set(error, -ret,
1829                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1830                                            "Failed to create EM filter");
1831                         goto free_filter;
1832                 }
1833         }
1834
1835         if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
1836                 filter->enables |=
1837                         HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1838                 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
1839                 if (ret != 0) {
1840                         rte_flow_error_set(error, -ret,
1841                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1842                                            "Failed to create ntuple filter");
1843                         goto free_filter;
1844                 }
1845         }
1846
1847         if (BNXT_RFS_NEEDS_VNIC(bp))
1848                 vnic = find_matching_vnic(bp, filter);
1849         else
1850                 vnic = BNXT_GET_DEFAULT_VNIC(bp);
1851 done:
1852         if (!ret || update_flow) {
1853                 flow->filter = filter;
1854                 flow->vnic = vnic;
1855                 if (update_flow) {
1856                         ret = -EXDEV;
1857                         goto free_flow;
1858                 }
1859
1860                 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1861                         PMD_DRV_LOG(DEBUG,
1862                                     "Mark action: mark id 0x%x, flow id 0x%x\n",
1863                                     filter->mark, filter->flow_id);
1864
1865                         /* TCAM and EM should be 16-bit only.
1866                          * Other modes not supported.
1867                          */
1868                         flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1869                         if (bp->mark_table[flow_id].valid) {
1870                                 rte_flow_error_set(error, EEXIST,
1871                                                    RTE_FLOW_ERROR_TYPE_HANDLE,
1872                                                    NULL,
1873                                                    "Flow with mark id exists");
1874                                 bnxt_clear_one_vnic_filter(bp, filter);
1875                                 goto free_filter;
1876                         }
1877                         bp->mark_table[flow_id].valid = true;
1878                         bp->mark_table[flow_id].mark_id = filter->mark;
1879                 }
1880
1881                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
1882                 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1883
1884                 if (BNXT_FLOW_XSTATS_EN(bp))
1885                         bp->flow_stat->flow_count++;
1886                 bnxt_release_flow_lock(bp);
1887                 bnxt_setup_flow_counter(bp);
1888                 PMD_DRV_LOG(DEBUG, "Successfully created flow.\n");
1889                 return flow;
1890         }
1891
1892 free_filter:
1893         bnxt_free_filter(bp, filter);
1894 free_flow:
1895         if (ret == -EEXIST)
1896                 rte_flow_error_set(error, ret,
1897                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1898                                    "Matching Flow exists.");
1899         else if (ret == -EXDEV)
1900                 rte_flow_error_set(error, 0,
1901                                    RTE_FLOW_ERROR_TYPE_NONE, NULL,
1902                                    "Flow with pattern exists, updating destination queue");
1903         else if (!rte_errno)
1904                 rte_flow_error_set(error, -ret,
1905                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1906                                    "Failed to create flow.");
1907         rte_free(flow);
1908         flow = NULL;
1909         bnxt_release_flow_lock(bp);
1910         return flow;
1911 }
1912
1913 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
1914                                                struct bnxt_filter_info *filter,
1915                                                struct rte_flow_error *error)
1916 {
1917         uint16_t tun_dst_fid;
1918         uint32_t tun_type;
1919         int ret = 0;
1920
1921         ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1922         if (ret) {
1923                 rte_flow_error_set(error, -ret,
1924                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1925                                    "Unable to query tunnel to VF");
1926                 return ret;
1927         }
1928         if (tun_type == (1U << filter->tunnel_type)) {
1929                 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
1930                                                      &tun_dst_fid);
1931                 if (ret) {
1932                         rte_flow_error_set(error, -ret,
1933                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1934                                            NULL,
1935                                            "tunnel_redirect info cmd fail");
1936                         return ret;
1937                 }
1938                 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
1939                             tun_dst_fid + bp->first_vf_id, bp->fw_fid);
1940
1941                 /* Tunnel doesn't belong to this VF, so don't send HWRM
1942                  * cmd, just delete the flow from driver
1943                  */
1944                 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id))
1945                         PMD_DRV_LOG(ERR,
1946                                     "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
1947                 else
1948                         ret = bnxt_hwrm_tunnel_redirect_free(bp,
1949                                                         filter->tunnel_type);
1950         }
1951         return ret;
1952 }
1953
1954 static int
1955 _bnxt_flow_destroy(struct bnxt *bp,
1956                    struct rte_flow *flow,
1957                     struct rte_flow_error *error)
1958 {
1959         struct bnxt_filter_info *filter;
1960         struct bnxt_vnic_info *vnic;
1961         int ret = 0;
1962         uint32_t flow_id;
1963
1964         filter = flow->filter;
1965         vnic = flow->vnic;
1966
1967         if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1968             filter->enables == filter->tunnel_type) {
1969                 ret = bnxt_handle_tunnel_redirect_destroy(bp, filter, error);
1970                 if (!ret)
1971                         goto done;
1972                 else
1973                         return ret;
1974         }
1975
1976         ret = bnxt_match_filter(bp, filter);
1977         if (ret == 0)
1978                 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
1979
1980         if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1981                 flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1982                 memset(&bp->mark_table[flow_id], 0,
1983                        sizeof(bp->mark_table[flow_id]));
1984                 filter->flow_id = 0;
1985         }
1986
1987         ret = bnxt_clear_one_vnic_filter(bp, filter);
1988
1989 done:
1990         if (!ret) {
1991                 /* If it is a L2 drop filter, when the filter is created,
1992                  * the FW updates the BC/MC records.
1993                  * Once this filter is removed, issue the set_rx_mask command
1994                  * to reset the BC/MC records in the HW to the settings
1995                  * before the drop counter is created.
1996                  */
1997                 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
1998                         bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
1999
2000                 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
2001                 bnxt_free_filter(bp, filter);
2002                 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
2003                 rte_free(flow);
2004                 if (BNXT_FLOW_XSTATS_EN(bp))
2005                         bp->flow_stat->flow_count--;
2006
2007                 /* If this was the last flow associated with this vnic,
2008                  * switch the queue back to RSS pool.
2009                  */
2010                 if (vnic && !vnic->func_default &&
2011                     STAILQ_EMPTY(&vnic->flow_list)) {
2012                         rte_free(vnic->fw_grp_ids);
2013                         if (vnic->rx_queue_cnt > 1)
2014                                 bnxt_hwrm_vnic_ctx_free(bp, vnic);
2015
2016                         bnxt_hwrm_vnic_free(bp, vnic);
2017                         vnic->rx_queue_cnt = 0;
2018                         bp->nr_vnics--;
2019                 }
2020         } else {
2021                 rte_flow_error_set(error, -ret,
2022                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2023                                    "Failed to destroy flow.");
2024         }
2025
2026         return ret;
2027 }
2028
2029 static int
2030 bnxt_flow_destroy(struct rte_eth_dev *dev,
2031                   struct rte_flow *flow,
2032                   struct rte_flow_error *error)
2033 {
2034         struct bnxt *bp = dev->data->dev_private;
2035         int ret = 0;
2036
2037         bnxt_acquire_flow_lock(bp);
2038         if (!flow) {
2039                 rte_flow_error_set(error, EINVAL,
2040                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2041                                    "Invalid flow: failed to destroy flow.");
2042                 bnxt_release_flow_lock(bp);
2043                 return -EINVAL;
2044         }
2045
2046         if (!flow->filter) {
2047                 rte_flow_error_set(error, EINVAL,
2048                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2049                                    "Invalid flow: failed to destroy flow.");
2050                 bnxt_release_flow_lock(bp);
2051                 return -EINVAL;
2052         }
2053         ret = _bnxt_flow_destroy(bp, flow, error);
2054         bnxt_release_flow_lock(bp);
2055
2056         return ret;
2057 }
2058
2059 void bnxt_cancel_fc_thread(struct bnxt *bp)
2060 {
2061         bp->flags &= ~BNXT_FLAG_FC_THREAD;
2062         rte_eal_alarm_cancel(bnxt_flow_cnt_alarm_cb, (void *)bp);
2063 }
2064
2065 static int
2066 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
2067 {
2068         struct bnxt *bp = dev->data->dev_private;
2069         struct bnxt_vnic_info *vnic;
2070         struct rte_flow *flow;
2071         unsigned int i;
2072         int ret = 0;
2073
2074         bnxt_acquire_flow_lock(bp);
2075         for (i = 0; i < bp->max_vnics; i++) {
2076                 vnic = &bp->vnic_info[i];
2077                 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
2078                         continue;
2079
2080                 while (!STAILQ_EMPTY(&vnic->flow_list)) {
2081                         flow = STAILQ_FIRST(&vnic->flow_list);
2082
2083                         if (!flow->filter)
2084                                 continue;
2085
2086                         ret = _bnxt_flow_destroy(bp, flow, error);
2087                         if (ret)
2088                                 break;
2089                 }
2090         }
2091
2092         bnxt_cancel_fc_thread(bp);
2093         bnxt_release_flow_lock(bp);
2094
2095         return ret;
2096 }
2097
2098 const struct rte_flow_ops bnxt_flow_ops = {
2099         .validate = bnxt_flow_validate,
2100         .create = bnxt_flow_create,
2101         .destroy = bnxt_flow_destroy,
2102         .flush = bnxt_flow_flush,
2103 };