examples/ipsec-secgw/ipsec.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4 #include <sys/types.h>
   5 #include <netinet/in.h>
   6 #include <netinet/ip.h>
   7
   8 #include <rte_branch_prediction.h>
   9 #include <rte_log.h>
  10 #include <rte_crypto.h>
  11 #include <rte_security.h>
  12 #include <rte_cryptodev.h>
  13 #include <rte_ethdev.h>
  14 #include <rte_mbuf.h>
  15 #include <rte_hash.h>
  16
  17 #include "ipsec.h"
  18 #include "esp.h"
  19
  20 static inline void
  21 set_ipsec_conf(struct ipsec_sa *sa, struct rte_security_ipsec_xform *ipsec)
  22 {
  23         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
  24                 struct rte_security_ipsec_tunnel_param *tunnel =
  25                                 &ipsec->tunnel;
  26                 if (IS_IP4_TUNNEL(sa->flags)) {
  27                         tunnel->type =
  28                                 RTE_SECURITY_IPSEC_TUNNEL_IPV4;
  29                         tunnel->ipv4.ttl = IPDEFTTL;
  30
  31                         memcpy((uint8_t *)&tunnel->ipv4.src_ip,
  32                                 (uint8_t *)&sa->src.ip.ip4, 4);
  33
  34                         memcpy((uint8_t *)&tunnel->ipv4.dst_ip,
  35                                 (uint8_t *)&sa->dst.ip.ip4, 4);
  36                 } else if (IS_IP6_TUNNEL(sa->flags)) {
  37                         tunnel->type =
  38                                 RTE_SECURITY_IPSEC_TUNNEL_IPV6;
  39                         tunnel->ipv6.hlimit = IPDEFTTL;
  40                         tunnel->ipv6.dscp = 0;
  41                         tunnel->ipv6.flabel = 0;
  42
  43                         memcpy((uint8_t *)&tunnel->ipv6.src_addr,
  44                                 (uint8_t *)&sa->src.ip.ip6.ip6_b, 16);
  45
  46                         memcpy((uint8_t *)&tunnel->ipv6.dst_addr,
  47                                 (uint8_t *)&sa->dst.ip.ip6.ip6_b, 16);
  48                 }
  49                 /* TODO support for Transport */
  50         }
  51         ipsec->esn_soft_limit = IPSEC_OFFLOAD_ESN_SOFTLIMIT;
  52 }
  53
  54 int
  55 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa)
  56 {
  57         struct rte_cryptodev_info cdev_info;
  58         unsigned long cdev_id_qp = 0;
  59         int32_t ret = 0;
  60         struct cdev_key key = { 0 };
  61
  62         key.lcore_id = (uint8_t)rte_lcore_id();
  63
  64         key.cipher_algo = (uint8_t)sa->cipher_algo;
  65         key.auth_algo = (uint8_t)sa->auth_algo;
  66         key.aead_algo = (uint8_t)sa->aead_algo;
  67
  68         ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
  69                         (void **)&cdev_id_qp);
  70         if (ret < 0) {
  71                 RTE_LOG(ERR, IPSEC,
  72                                 "No cryptodev: core %u, cipher_algo %u, "
  73                                 "auth_algo %u, aead_algo %u\n",
  74                                 key.lcore_id,
  75                                 key.cipher_algo,
  76                                 key.auth_algo,
  77                                 key.aead_algo);
  78                 return -1;
  79         }
  80
  81         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
  82                         "%u qp %u\n", sa->spi,
  83                         ipsec_ctx->tbl[cdev_id_qp].id,
  84                         ipsec_ctx->tbl[cdev_id_qp].qp);
  85
  86         if (sa->type != RTE_SECURITY_ACTION_TYPE_NONE) {
  87                 struct rte_security_session_conf sess_conf = {
  88                         .action_type = sa->type,
  89                         .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
  90                         {.ipsec = {
  91                                 .spi = sa->spi,
  92                                 .salt = sa->salt,
  93                                 .options = { 0 },
  94                                 .direction = sa->direction,
  95                                 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
  96                                 .mode = (IS_TUNNEL(sa->flags)) ?
  97                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
  98                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
  99                         } },
 100                         .crypto_xform = sa->xforms,
 101                         .userdata = NULL,
 102
 103                 };
 104
 105                 if (sa->type == RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 106                         struct rte_security_ctx *ctx = (struct rte_security_ctx *)
 107                                                         rte_cryptodev_get_sec_ctx(
 108                                                         ipsec_ctx->tbl[cdev_id_qp].id);
 109
 110                         /* Set IPsec parameters in conf */
 111                         set_ipsec_conf(sa, &(sess_conf.ipsec));
 112
 113                         sa->sec_session = rte_security_session_create(ctx,
 114                                         &sess_conf, ipsec_ctx->session_priv_pool);
 115                         if (sa->sec_session == NULL) {
 116                                 RTE_LOG(ERR, IPSEC,
 117                                 "SEC Session init failed: err: %d\n", ret);
 118                                 return -1;
 119                         }
 120                 } else {
 121                         RTE_LOG(ERR, IPSEC, "Inline not supported\n");
 122                         return -1;
 123                 }
 124         } else {
 125                 sa->crypto_session = rte_cryptodev_sym_session_create(
 126                                 ipsec_ctx->session_pool);
 127                 rte_cryptodev_sym_session_init(ipsec_ctx->tbl[cdev_id_qp].id,
 128                                 sa->crypto_session, sa->xforms,
 129                                 ipsec_ctx->session_priv_pool);
 130
 131                 rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id,
 132                                 &cdev_info);
 133         }
 134
 135         sa->cdev_id_qp = cdev_id_qp;
 136
 137         return 0;
 138 }
 139
 140 int
 141 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa)
 142 {
 143         int32_t ret = 0;
 144         struct rte_security_ctx *sec_ctx;
 145         struct rte_security_session_conf sess_conf = {
 146                 .action_type = sa->type,
 147                 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
 148                 {.ipsec = {
 149                         .spi = sa->spi,
 150                         .salt = sa->salt,
 151                         .options = { 0 },
 152                         .direction = sa->direction,
 153                         .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 154                         .mode = (sa->flags == IP4_TUNNEL ||
 155                                         sa->flags == IP6_TUNNEL) ?
 156                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 157                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 158                 } },
 159                 .crypto_xform = sa->xforms,
 160                 .userdata = NULL,
 161         };
 162
 163         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n",
 164                 sa->spi, sa->portid);
 165
 166         if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
 167                 struct rte_flow_error err;
 168                 const struct rte_security_capability *sec_cap;
 169                 int ret = 0;
 170
 171                 sec_ctx = (struct rte_security_ctx *)
 172                                         rte_eth_dev_get_sec_ctx(
 173                                         sa->portid);
 174                 if (sec_ctx == NULL) {
 175                         RTE_LOG(ERR, IPSEC,
 176                                 " rte_eth_dev_get_sec_ctx failed\n");
 177                         return -1;
 178                 }
 179
 180                 sa->sec_session = rte_security_session_create(sec_ctx,
 181                                 &sess_conf, skt_ctx->session_pool);
 182                 if (sa->sec_session == NULL) {
 183                         RTE_LOG(ERR, IPSEC,
 184                                 "SEC Session init failed: err: %d\n", ret);
 185                         return -1;
 186                 }
 187
 188                 sec_cap = rte_security_capabilities_get(sec_ctx);
 189
 190                 /* iterate until ESP tunnel*/
 191                 while (sec_cap->action != RTE_SECURITY_ACTION_TYPE_NONE) {
 192                         if (sec_cap->action == sa->type &&
 193                             sec_cap->protocol ==
 194                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 195                             sec_cap->ipsec.mode ==
 196                                 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL &&
 197                             sec_cap->ipsec.direction == sa->direction)
 198                                 break;
 199                         sec_cap++;
 200                 }
 201
 202                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 203                         RTE_LOG(ERR, IPSEC,
 204                                 "No suitable security capability found\n");
 205                         return -1;
 206                 }
 207
 208                 sa->ol_flags = sec_cap->ol_flags;
 209                 sa->security_ctx = sec_ctx;
 210                 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 211
 212                 if (IS_IP6(sa->flags)) {
 213                         sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 214                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 215                         sa->pattern[1].spec = &sa->ipv6_spec;
 216
 217                         memcpy(sa->ipv6_spec.hdr.dst_addr,
 218                                 sa->dst.ip.ip6.ip6_b, 16);
 219                         memcpy(sa->ipv6_spec.hdr.src_addr,
 220                                sa->src.ip.ip6.ip6_b, 16);
 221                 } else if (IS_IP4(sa->flags)) {
 222                         sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 223                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 224                         sa->pattern[1].spec = &sa->ipv4_spec;
 225
 226                         sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 227                         sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 228                 }
 229
 230                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 231                 sa->pattern[2].spec = &sa->esp_spec;
 232                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 233                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 234
 235                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 236
 237                 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
 238                 sa->action[0].conf = sa->sec_session;
 239
 240                 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 241
 242                 sa->attr.egress = (sa->direction ==
 243                                 RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
 244                 sa->attr.ingress = (sa->direction ==
 245                                 RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
 246                 if (sa->attr.ingress) {
 247                         uint8_t rss_key[40];
 248                         struct rte_eth_rss_conf rss_conf = {
 249                                 .rss_key = rss_key,
 250                                 .rss_key_len = 40,
 251                         };
 252                         struct rte_eth_dev_info dev_info;
 253                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
 254                         struct rte_flow_action_rss action_rss;
 255                         unsigned int i;
 256                         unsigned int j;
 257
 258                         ret = rte_eth_dev_info_get(sa->portid, &dev_info);
 259                         if (ret != 0) {
 260                                 RTE_LOG(ERR, IPSEC,
 261                                         "Error during getting device (port %u) info: %s\n",
 262                                         sa->portid, strerror(-ret));
 263                                 return ret;
 264                         }
 265
 266                         sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
 267                         /* Try RSS. */
 268                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
 269                         sa->action[1].conf = &action_rss;
 270                         ret = rte_eth_dev_rss_hash_conf_get(sa->portid,
 271                                         &rss_conf);
 272                         if (ret != 0) {
 273                                 RTE_LOG(ERR, IPSEC,
 274                                         "rte_eth_dev_rss_hash_conf_get:ret=%d\n",
 275                                         ret);
 276                                 return -1;
 277                         }
 278                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 279                                 queue[j++] = i;
 280
 281                         action_rss = (struct rte_flow_action_rss){
 282                                         .types = rss_conf.rss_hf,
 283                                         .key_len = rss_conf.rss_key_len,
 284                                         .queue_num = j,
 285                                         .key = rss_key,
 286                                         .queue = queue,
 287                         };
 288                         ret = rte_flow_validate(sa->portid, &sa->attr,
 289                                                 sa->pattern, sa->action,
 290                                                 &err);
 291                         if (!ret)
 292                                 goto flow_create;
 293                         /* Try Queue. */
 294                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 295                         sa->action[1].conf =
 296                                 &(struct rte_flow_action_queue){
 297                                 .index = 0,
 298                         };
 299                         ret = rte_flow_validate(sa->portid, &sa->attr,
 300                                                 sa->pattern, sa->action,
 301                                                 &err);
 302                         /* Try End. */
 303                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 304                         sa->action[1].conf = NULL;
 305                         ret = rte_flow_validate(sa->portid, &sa->attr,
 306                                                 sa->pattern, sa->action,
 307                                                 &err);
 308                         if (ret)
 309                                 goto flow_create_failure;
 310                 } else if (sa->attr.egress &&
 311                            (sa->ol_flags &
 312                                     RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 313                         sa->action[1].type =
 314                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 315                         sa->action[2].type =
 316                                         RTE_FLOW_ACTION_TYPE_END;
 317                 }
 318 flow_create:
 319                 sa->flow = rte_flow_create(sa->portid,
 320                                 &sa->attr, sa->pattern, sa->action, &err);
 321                 if (sa->flow == NULL) {
 322 flow_create_failure:
 323                         RTE_LOG(ERR, IPSEC,
 324                                 "Failed to create ipsec flow msg: %s\n",
 325                                 err.message);
 326                         return -1;
 327                 }
 328         } else if (sa->type ==  RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 329                 const struct rte_security_capability *sec_cap;
 330
 331                 sec_ctx = (struct rte_security_ctx *)
 332                                 rte_eth_dev_get_sec_ctx(sa->portid);
 333
 334                 if (sec_ctx == NULL) {
 335                         RTE_LOG(ERR, IPSEC,
 336                                 "Ethernet device doesn't have security features registered\n");
 337                         return -1;
 338                 }
 339
 340                 /* Set IPsec parameters in conf */
 341                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 342
 343                 /* Save SA as userdata for the security session. When
 344                  * the packet is received, this userdata will be
 345                  * retrieved using the metadata from the packet.
 346                  *
 347                  * The PMD is expected to set similar metadata for other
 348                  * operations, like rte_eth_event, which are tied to
 349                  * security session. In such cases, the userdata could
 350                  * be obtained to uniquely identify the security
 351                  * parameters denoted.
 352                  */
 353
 354                 sess_conf.userdata = (void *) sa;
 355
 356                 sa->sec_session = rte_security_session_create(sec_ctx,
 357                                         &sess_conf, skt_ctx->session_pool);
 358                 if (sa->sec_session == NULL) {
 359                         RTE_LOG(ERR, IPSEC,
 360                                 "SEC Session init failed: err: %d\n", ret);
 361                         return -1;
 362                 }
 363
 364                 sec_cap = rte_security_capabilities_get(sec_ctx);
 365                 if (sec_cap == NULL) {
 366                         RTE_LOG(ERR, IPSEC,
 367                                 "No capabilities registered\n");
 368                         return -1;
 369                 }
 370
 371                 /* iterate until ESP tunnel*/
 372                 while (sec_cap->action !=
 373                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 374                         if (sec_cap->action == sa->type &&
 375                             sec_cap->protocol ==
 376                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 377                             sec_cap->ipsec.mode ==
 378                                 sess_conf.ipsec.mode &&
 379                             sec_cap->ipsec.direction == sa->direction)
 380                                 break;
 381                         sec_cap++;
 382                 }
 383
 384                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 385                         RTE_LOG(ERR, IPSEC,
 386                                 "No suitable security capability found\n");
 387                         return -1;
 388                 }
 389
 390                 sa->ol_flags = sec_cap->ol_flags;
 391                 sa->security_ctx = sec_ctx;
 392         }
 393         sa->cdev_id_qp = 0;
 394
 395         return 0;
 396 }
 397
 398 /*
 399  * queue crypto-ops into PMD queue.
 400  */
 401 void
 402 enqueue_cop_burst(struct cdev_qp *cqp)
 403 {
 404         uint32_t i, len, ret;
 405
 406         len = cqp->len;
 407         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 408         if (ret < len) {
 409                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 410                         " enqueued %u crypto ops out of %u\n",
 411                         cqp->id, cqp->qp, ret, len);
 412                         /* drop packets that we fail to enqueue */
 413                         for (i = ret; i < len; i++)
 414                                 rte_pktmbuf_free(cqp->buf[i]->sym->m_src);
 415         }
 416         cqp->in_flight += ret;
 417         cqp->len = 0;
 418 }
 419
 420 static inline void
 421 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 422 {
 423         cqp->buf[cqp->len++] = cop;
 424
 425         if (cqp->len == MAX_PKT_BURST)
 426                 enqueue_cop_burst(cqp);
 427 }
 428
 429 static inline void
 430 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 431                 struct rte_mbuf *pkts[], struct ipsec_sa *sas[],
 432                 uint16_t nb_pkts)
 433 {
 434         int32_t ret = 0, i;
 435         struct ipsec_mbuf_metadata *priv;
 436         struct rte_crypto_sym_op *sym_cop;
 437         struct ipsec_sa *sa;
 438
 439         for (i = 0; i < nb_pkts; i++) {
 440                 if (unlikely(sas[i] == NULL)) {
 441                         rte_pktmbuf_free(pkts[i]);
 442                         continue;
 443                 }
 444
 445                 rte_prefetch0(sas[i]);
 446                 rte_prefetch0(pkts[i]);
 447
 448                 priv = get_priv(pkts[i]);
 449                 sa = sas[i];
 450                 priv->sa = sa;
 451
 452                 switch (sa->type) {
 453                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 454                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 455                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 456
 457                         rte_prefetch0(&priv->sym_cop);
 458
 459                         if ((unlikely(sa->sec_session == NULL)) &&
 460                                 create_lookaside_session(ipsec_ctx, sa)) {
 461                                 rte_pktmbuf_free(pkts[i]);
 462                                 continue;
 463                         }
 464
 465                         sym_cop = get_sym_cop(&priv->cop);
 466                         sym_cop->m_src = pkts[i];
 467
 468                         rte_security_attach_session(&priv->cop,
 469                                         sa->sec_session);
 470                         break;
 471                 case RTE_SECURITY_ACTION_TYPE_NONE:
 472
 473                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 474                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 475
 476                         rte_prefetch0(&priv->sym_cop);
 477
 478                         if ((unlikely(sa->crypto_session == NULL)) &&
 479                                 create_lookaside_session(ipsec_ctx, sa)) {
 480                                 rte_pktmbuf_free(pkts[i]);
 481                                 continue;
 482                         }
 483
 484                         rte_crypto_op_attach_sym_session(&priv->cop,
 485                                         sa->crypto_session);
 486
 487                         ret = xform_func(pkts[i], sa, &priv->cop);
 488                         if (unlikely(ret)) {
 489                                 rte_pktmbuf_free(pkts[i]);
 490                                 continue;
 491                         }
 492                         break;
 493                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 494                         RTE_ASSERT(sa->sec_session != NULL);
 495                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 496                         if (sa->ol_flags & RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 497                                 rte_security_set_pkt_metadata(
 498                                                 sa->security_ctx,
 499                                                 sa->sec_session, pkts[i], NULL);
 500                         continue;
 501                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 502                         RTE_ASSERT(sa->sec_session != NULL);
 503                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 504                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 505
 506                         rte_prefetch0(&priv->sym_cop);
 507                         rte_security_attach_session(&priv->cop,
 508                                         sa->sec_session);
 509
 510                         ret = xform_func(pkts[i], sa, &priv->cop);
 511                         if (unlikely(ret)) {
 512                                 rte_pktmbuf_free(pkts[i]);
 513                                 continue;
 514                         }
 515
 516                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 517                         if (sa->ol_flags & RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 518                                 rte_security_set_pkt_metadata(
 519                                                 sa->security_ctx,
 520                                                 sa->sec_session, pkts[i], NULL);
 521                         continue;
 522                 }
 523
 524                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 525                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 526         }
 527 }
 528
 529 static inline int32_t
 530 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 531               struct rte_mbuf *pkts[], uint16_t max_pkts)
 532 {
 533         int32_t nb_pkts, ret;
 534         struct ipsec_mbuf_metadata *priv;
 535         struct ipsec_sa *sa;
 536         struct rte_mbuf *pkt;
 537
 538         nb_pkts = 0;
 539         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 540                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 541                 rte_prefetch0(pkt);
 542                 priv = get_priv(pkt);
 543                 sa = priv->sa;
 544                 ret = xform_func(pkt, sa, &priv->cop);
 545                 if (unlikely(ret)) {
 546                         rte_pktmbuf_free(pkt);
 547                         continue;
 548                 }
 549                 pkts[nb_pkts++] = pkt;
 550         }
 551
 552         return nb_pkts;
 553 }
 554
 555 static inline int
 556 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 557               struct rte_mbuf *pkts[], uint16_t max_pkts)
 558 {
 559         int32_t nb_pkts = 0, ret = 0, i, j, nb_cops;
 560         struct ipsec_mbuf_metadata *priv;
 561         struct rte_crypto_op *cops[max_pkts];
 562         struct ipsec_sa *sa;
 563         struct rte_mbuf *pkt;
 564
 565         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 566                 struct cdev_qp *cqp;
 567
 568                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 569                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 570                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 571
 572                 if (cqp->in_flight == 0)
 573                         continue;
 574
 575                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 576                                 cops, max_pkts - nb_pkts);
 577
 578                 cqp->in_flight -= nb_cops;
 579
 580                 for (j = 0; j < nb_cops; j++) {
 581                         pkt = cops[j]->sym->m_src;
 582                         rte_prefetch0(pkt);
 583
 584                         priv = get_priv(pkt);
 585                         sa = priv->sa;
 586
 587                         RTE_ASSERT(sa != NULL);
 588
 589                         if (sa->type == RTE_SECURITY_ACTION_TYPE_NONE) {
 590                                 ret = xform_func(pkt, sa, cops[j]);
 591                                 if (unlikely(ret)) {
 592                                         rte_pktmbuf_free(pkt);
 593                                         continue;
 594                                 }
 595                         } else if (sa->type ==
 596                                 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 597                                 if (cops[j]->status) {
 598                                         rte_pktmbuf_free(pkt);
 599                                         continue;
 600                                 }
 601                         }
 602                         pkts[nb_pkts++] = pkt;
 603                 }
 604         }
 605
 606         /* return packets */
 607         return nb_pkts;
 608 }
 609
 610 uint16_t
 611 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 612                 uint16_t nb_pkts, uint16_t len)
 613 {
 614         struct ipsec_sa *sas[nb_pkts];
 615
 616         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 617
 618         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 619
 620         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 621 }
 622
 623 uint16_t
 624 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 625                 uint16_t len)
 626 {
 627         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 628 }
 629
 630 uint16_t
 631 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 632                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 633 {
 634         struct ipsec_sa *sas[nb_pkts];
 635
 636         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 637
 638         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 639
 640         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 641 }
 642
 643 uint16_t
 644 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 645                 uint16_t len)
 646 {
 647         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 648 }