drivers/net/bnxt/bnxt_flow.c

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