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                 }
  37                 /* TODO support for Transport and IPV6 tunnel */
  38         }
  39         ipsec->esn_soft_limit = IPSEC_OFFLOAD_ESN_SOFTLIMIT;
  40 }
  41
  42 int
  43 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa)
  44 {
  45         struct rte_cryptodev_info cdev_info;
  46         unsigned long cdev_id_qp = 0;
  47         int32_t ret = 0;
  48         struct cdev_key key = { 0 };
  49
  50         key.lcore_id = (uint8_t)rte_lcore_id();
  51
  52         key.cipher_algo = (uint8_t)sa->cipher_algo;
  53         key.auth_algo = (uint8_t)sa->auth_algo;
  54         key.aead_algo = (uint8_t)sa->aead_algo;
  55
  56         ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
  57                         (void **)&cdev_id_qp);
  58         if (ret < 0) {
  59                 RTE_LOG(ERR, IPSEC,
  60                                 "No cryptodev: core %u, cipher_algo %u, "
  61                                 "auth_algo %u, aead_algo %u\n",
  62                                 key.lcore_id,
  63                                 key.cipher_algo,
  64                                 key.auth_algo,
  65                                 key.aead_algo);
  66                 return -1;
  67         }
  68
  69         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
  70                         "%u qp %u\n", sa->spi,
  71                         ipsec_ctx->tbl[cdev_id_qp].id,
  72                         ipsec_ctx->tbl[cdev_id_qp].qp);
  73
  74         if (sa->type != RTE_SECURITY_ACTION_TYPE_NONE) {
  75                 struct rte_security_session_conf sess_conf = {
  76                         .action_type = sa->type,
  77                         .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
  78                         {.ipsec = {
  79                                 .spi = sa->spi,
  80                                 .salt = sa->salt,
  81                                 .options = { 0 },
  82                                 .direction = sa->direction,
  83                                 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
  84                                 .mode = (IS_TUNNEL(sa->flags)) ?
  85                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
  86                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
  87                         } },
  88                         .crypto_xform = sa->xforms,
  89                         .userdata = NULL,
  90
  91                 };
  92
  93                 if (sa->type == RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
  94                         struct rte_security_ctx *ctx = (struct rte_security_ctx *)
  95                                                         rte_cryptodev_get_sec_ctx(
  96                                                         ipsec_ctx->tbl[cdev_id_qp].id);
  97
  98                         /* Set IPsec parameters in conf */
  99                         set_ipsec_conf(sa, &(sess_conf.ipsec));
 100
 101                         sa->sec_session = rte_security_session_create(ctx,
 102                                         &sess_conf, ipsec_ctx->session_priv_pool);
 103                         if (sa->sec_session == NULL) {
 104                                 RTE_LOG(ERR, IPSEC,
 105                                 "SEC Session init failed: err: %d\n", ret);
 106                                 return -1;
 107                         }
 108                 } else {
 109                         RTE_LOG(ERR, IPSEC, "Inline not supported\n");
 110                         return -1;
 111                 }
 112         } else {
 113                 sa->crypto_session = rte_cryptodev_sym_session_create(
 114                                 ipsec_ctx->session_pool);
 115                 rte_cryptodev_sym_session_init(ipsec_ctx->tbl[cdev_id_qp].id,
 116                                 sa->crypto_session, sa->xforms,
 117                                 ipsec_ctx->session_priv_pool);
 118
 119                 rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id,
 120                                 &cdev_info);
 121         }
 122
 123         sa->cdev_id_qp = cdev_id_qp;
 124
 125         return 0;
 126 }
 127
 128 int
 129 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa)
 130 {
 131         int32_t ret = 0;
 132         struct rte_security_ctx *sec_ctx;
 133         struct rte_security_session_conf sess_conf = {
 134                 .action_type = sa->type,
 135                 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
 136                 {.ipsec = {
 137                         .spi = sa->spi,
 138                         .salt = sa->salt,
 139                         .options = { 0 },
 140                         .direction = sa->direction,
 141                         .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 142                         .mode = (sa->flags == IP4_TUNNEL ||
 143                                         sa->flags == IP6_TUNNEL) ?
 144                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 145                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 146                 } },
 147                 .crypto_xform = sa->xforms,
 148                 .userdata = NULL,
 149         };
 150
 151         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n",
 152                 sa->spi, sa->portid);
 153
 154         if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
 155                 struct rte_flow_error err;
 156                 const struct rte_security_capability *sec_cap;
 157                 int ret = 0;
 158
 159                 sec_ctx = (struct rte_security_ctx *)
 160                                         rte_eth_dev_get_sec_ctx(
 161                                         sa->portid);
 162                 if (sec_ctx == NULL) {
 163                         RTE_LOG(ERR, IPSEC,
 164                                 " rte_eth_dev_get_sec_ctx failed\n");
 165                         return -1;
 166                 }
 167
 168                 sa->sec_session = rte_security_session_create(sec_ctx,
 169                                 &sess_conf, skt_ctx->session_pool);
 170                 if (sa->sec_session == NULL) {
 171                         RTE_LOG(ERR, IPSEC,
 172                                 "SEC Session init failed: err: %d\n", ret);
 173                         return -1;
 174                 }
 175
 176                 sec_cap = rte_security_capabilities_get(sec_ctx);
 177
 178                 /* iterate until ESP tunnel*/
 179                 while (sec_cap->action != RTE_SECURITY_ACTION_TYPE_NONE) {
 180                         if (sec_cap->action == sa->type &&
 181                             sec_cap->protocol ==
 182                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 183                             sec_cap->ipsec.mode ==
 184                                 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL &&
 185                             sec_cap->ipsec.direction == sa->direction)
 186                                 break;
 187                         sec_cap++;
 188                 }
 189
 190                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 191                         RTE_LOG(ERR, IPSEC,
 192                                 "No suitable security capability found\n");
 193                         return -1;
 194                 }
 195
 196                 sa->ol_flags = sec_cap->ol_flags;
 197                 sa->security_ctx = sec_ctx;
 198                 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 199
 200                 if (IS_IP6(sa->flags)) {
 201                         sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 202                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 203                         sa->pattern[1].spec = &sa->ipv6_spec;
 204
 205                         memcpy(sa->ipv6_spec.hdr.dst_addr,
 206                                 sa->dst.ip.ip6.ip6_b, 16);
 207                         memcpy(sa->ipv6_spec.hdr.src_addr,
 208                                sa->src.ip.ip6.ip6_b, 16);
 209                 } else if (IS_IP4(sa->flags)) {
 210                         sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 211                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 212                         sa->pattern[1].spec = &sa->ipv4_spec;
 213
 214                         sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 215                         sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 216                 }
 217
 218                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 219                 sa->pattern[2].spec = &sa->esp_spec;
 220                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 221                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 222
 223                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 224
 225                 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
 226                 sa->action[0].conf = sa->sec_session;
 227
 228                 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 229
 230                 sa->attr.egress = (sa->direction ==
 231                                 RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
 232                 sa->attr.ingress = (sa->direction ==
 233                                 RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
 234                 if (sa->attr.ingress) {
 235                         uint8_t rss_key[40];
 236                         struct rte_eth_rss_conf rss_conf = {
 237                                 .rss_key = rss_key,
 238                                 .rss_key_len = 40,
 239                         };
 240                         struct rte_eth_dev_info dev_info;
 241                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
 242                         struct rte_flow_action_rss action_rss;
 243                         unsigned int i;
 244                         unsigned int j;
 245
 246                         rte_eth_dev_info_get(sa->portid, &dev_info);
 247                         sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
 248                         /* Try RSS. */
 249                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
 250                         sa->action[1].conf = &action_rss;
 251                         rte_eth_dev_rss_hash_conf_get(sa->portid, &rss_conf);
 252                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 253                                 queue[j++] = i;
 254
 255                         action_rss = (struct rte_flow_action_rss){
 256                                         .types = rss_conf.rss_hf,
 257                                         .key_len = rss_conf.rss_key_len,
 258                                         .queue_num = j,
 259                                         .key = rss_key,
 260                                         .queue = queue,
 261                         };
 262                         ret = rte_flow_validate(sa->portid, &sa->attr,
 263                                                 sa->pattern, sa->action,
 264                                                 &err);
 265                         if (!ret)
 266                                 goto flow_create;
 267                         /* Try Queue. */
 268                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 269                         sa->action[1].conf =
 270                                 &(struct rte_flow_action_queue){
 271                                 .index = 0,
 272                         };
 273                         ret = rte_flow_validate(sa->portid, &sa->attr,
 274                                                 sa->pattern, sa->action,
 275                                                 &err);
 276                         /* Try End. */
 277                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 278                         sa->action[1].conf = NULL;
 279                         ret = rte_flow_validate(sa->portid, &sa->attr,
 280                                                 sa->pattern, sa->action,
 281                                                 &err);
 282                         if (ret)
 283                                 goto flow_create_failure;
 284                 } else if (sa->attr.egress &&
 285                            (sa->ol_flags &
 286                                     RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 287                         sa->action[1].type =
 288                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 289                         sa->action[2].type =
 290                                         RTE_FLOW_ACTION_TYPE_END;
 291                 }
 292 flow_create:
 293                 sa->flow = rte_flow_create(sa->portid,
 294                                 &sa->attr, sa->pattern, sa->action, &err);
 295                 if (sa->flow == NULL) {
 296 flow_create_failure:
 297                         RTE_LOG(ERR, IPSEC,
 298                                 "Failed to create ipsec flow msg: %s\n",
 299                                 err.message);
 300                         return -1;
 301                 }
 302         } else if (sa->type ==  RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 303                 const struct rte_security_capability *sec_cap;
 304
 305                 sec_ctx = (struct rte_security_ctx *)
 306                                 rte_eth_dev_get_sec_ctx(sa->portid);
 307
 308                 if (sec_ctx == NULL) {
 309                         RTE_LOG(ERR, IPSEC,
 310                                 "Ethernet device doesn't have security features registered\n");
 311                         return -1;
 312                 }
 313
 314                 /* Set IPsec parameters in conf */
 315                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 316
 317                 /* Save SA as userdata for the security session. When
 318                  * the packet is received, this userdata will be
 319                  * retrieved using the metadata from the packet.
 320                  *
 321                  * The PMD is expected to set similar metadata for other
 322                  * operations, like rte_eth_event, which are tied to
 323                  * security session. In such cases, the userdata could
 324                  * be obtained to uniquely identify the security
 325                  * parameters denoted.
 326                  */
 327
 328                 sess_conf.userdata = (void *) sa;
 329
 330                 sa->sec_session = rte_security_session_create(sec_ctx,
 331                                         &sess_conf, skt_ctx->session_pool);
 332                 if (sa->sec_session == NULL) {
 333                         RTE_LOG(ERR, IPSEC,
 334                                 "SEC Session init failed: err: %d\n", ret);
 335                         return -1;
 336                 }
 337
 338                 sec_cap = rte_security_capabilities_get(sec_ctx);
 339                 if (sec_cap == NULL) {
 340                         RTE_LOG(ERR, IPSEC,
 341                                 "No capabilities registered\n");
 342                         return -1;
 343                 }
 344
 345                 /* iterate until ESP tunnel*/
 346                 while (sec_cap->action !=
 347                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 348                         if (sec_cap->action == sa->type &&
 349                             sec_cap->protocol ==
 350                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 351                             sec_cap->ipsec.mode ==
 352                                 sess_conf.ipsec.mode &&
 353                             sec_cap->ipsec.direction == sa->direction)
 354                                 break;
 355                         sec_cap++;
 356                 }
 357
 358                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 359                         RTE_LOG(ERR, IPSEC,
 360                                 "No suitable security capability found\n");
 361                         return -1;
 362                 }
 363
 364                 sa->ol_flags = sec_cap->ol_flags;
 365                 sa->security_ctx = sec_ctx;
 366         }
 367         sa->cdev_id_qp = 0;
 368
 369         return 0;
 370 }
 371
 372 /*
 373  * queue crypto-ops into PMD queue.
 374  */
 375 void
 376 enqueue_cop_burst(struct cdev_qp *cqp)
 377 {
 378         uint32_t i, len, ret;
 379
 380         len = cqp->len;
 381         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 382         if (ret < len) {
 383                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 384                         " enqueued %u crypto ops out of %u\n",
 385                         cqp->id, cqp->qp, ret, len);
 386                         /* drop packets that we fail to enqueue */
 387                         for (i = ret; i < len; i++)
 388                                 rte_pktmbuf_free(cqp->buf[i]->sym->m_src);
 389         }
 390         cqp->in_flight += ret;
 391         cqp->len = 0;
 392 }
 393
 394 static inline void
 395 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 396 {
 397         cqp->buf[cqp->len++] = cop;
 398
 399         if (cqp->len == MAX_PKT_BURST)
 400                 enqueue_cop_burst(cqp);
 401 }
 402
 403 static inline void
 404 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 405                 struct rte_mbuf *pkts[], struct ipsec_sa *sas[],
 406                 uint16_t nb_pkts)
 407 {
 408         int32_t ret = 0, i;
 409         struct ipsec_mbuf_metadata *priv;
 410         struct rte_crypto_sym_op *sym_cop;
 411         struct ipsec_sa *sa;
 412
 413         for (i = 0; i < nb_pkts; i++) {
 414                 if (unlikely(sas[i] == NULL)) {
 415                         rte_pktmbuf_free(pkts[i]);
 416                         continue;
 417                 }
 418
 419                 rte_prefetch0(sas[i]);
 420                 rte_prefetch0(pkts[i]);
 421
 422                 priv = get_priv(pkts[i]);
 423                 sa = sas[i];
 424                 priv->sa = sa;
 425
 426                 switch (sa->type) {
 427                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 428                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 429                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 430
 431                         rte_prefetch0(&priv->sym_cop);
 432
 433                         if ((unlikely(sa->sec_session == NULL)) &&
 434                                 create_lookaside_session(ipsec_ctx, sa)) {
 435                                 rte_pktmbuf_free(pkts[i]);
 436                                 continue;
 437                         }
 438
 439                         sym_cop = get_sym_cop(&priv->cop);
 440                         sym_cop->m_src = pkts[i];
 441
 442                         rte_security_attach_session(&priv->cop,
 443                                         sa->sec_session);
 444                         break;
 445                 case RTE_SECURITY_ACTION_TYPE_NONE:
 446
 447                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 448                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 449
 450                         rte_prefetch0(&priv->sym_cop);
 451
 452                         if ((unlikely(sa->crypto_session == NULL)) &&
 453                                 create_lookaside_session(ipsec_ctx, sa)) {
 454                                 rte_pktmbuf_free(pkts[i]);
 455                                 continue;
 456                         }
 457
 458                         rte_crypto_op_attach_sym_session(&priv->cop,
 459                                         sa->crypto_session);
 460
 461                         ret = xform_func(pkts[i], sa, &priv->cop);
 462                         if (unlikely(ret)) {
 463                                 rte_pktmbuf_free(pkts[i]);
 464                                 continue;
 465                         }
 466                         break;
 467                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 468                         RTE_ASSERT(sa->sec_session != NULL);
 469                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 470                         if (sa->ol_flags & RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 471                                 rte_security_set_pkt_metadata(
 472                                                 sa->security_ctx,
 473                                                 sa->sec_session, pkts[i], NULL);
 474                         continue;
 475                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 476                         RTE_ASSERT(sa->sec_session != NULL);
 477                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 478                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 479
 480                         rte_prefetch0(&priv->sym_cop);
 481                         rte_security_attach_session(&priv->cop,
 482                                         sa->sec_session);
 483
 484                         ret = xform_func(pkts[i], sa, &priv->cop);
 485                         if (unlikely(ret)) {
 486                                 rte_pktmbuf_free(pkts[i]);
 487                                 continue;
 488                         }
 489
 490                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 491                         if (sa->ol_flags & RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 492                                 rte_security_set_pkt_metadata(
 493                                                 sa->security_ctx,
 494                                                 sa->sec_session, pkts[i], NULL);
 495                         continue;
 496                 }
 497
 498                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 499                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 500         }
 501 }
 502
 503 static inline int32_t
 504 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 505               struct rte_mbuf *pkts[], uint16_t max_pkts)
 506 {
 507         int32_t nb_pkts, ret;
 508         struct ipsec_mbuf_metadata *priv;
 509         struct ipsec_sa *sa;
 510         struct rte_mbuf *pkt;
 511
 512         nb_pkts = 0;
 513         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 514                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 515                 rte_prefetch0(pkt);
 516                 priv = get_priv(pkt);
 517                 sa = priv->sa;
 518                 ret = xform_func(pkt, sa, &priv->cop);
 519                 if (unlikely(ret)) {
 520                         rte_pktmbuf_free(pkt);
 521                         continue;
 522                 }
 523                 pkts[nb_pkts++] = pkt;
 524         }
 525
 526         return nb_pkts;
 527 }
 528
 529 static inline int
 530 ipsec_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 = 0, ret = 0, i, j, nb_cops;
 534         struct ipsec_mbuf_metadata *priv;
 535         struct rte_crypto_op *cops[max_pkts];
 536         struct ipsec_sa *sa;
 537         struct rte_mbuf *pkt;
 538
 539         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 540                 struct cdev_qp *cqp;
 541
 542                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 543                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 544                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 545
 546                 if (cqp->in_flight == 0)
 547                         continue;
 548
 549                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 550                                 cops, max_pkts - nb_pkts);
 551
 552                 cqp->in_flight -= nb_cops;
 553
 554                 for (j = 0; j < nb_cops; j++) {
 555                         pkt = cops[j]->sym->m_src;
 556                         rte_prefetch0(pkt);
 557
 558                         priv = get_priv(pkt);
 559                         sa = priv->sa;
 560
 561                         RTE_ASSERT(sa != NULL);
 562
 563                         if (sa->type == RTE_SECURITY_ACTION_TYPE_NONE) {
 564                                 ret = xform_func(pkt, sa, cops[j]);
 565                                 if (unlikely(ret)) {
 566                                         rte_pktmbuf_free(pkt);
 567                                         continue;
 568                                 }
 569                         }
 570                         pkts[nb_pkts++] = pkt;
 571                 }
 572         }
 573
 574         /* return packets */
 575         return nb_pkts;
 576 }
 577
 578 uint16_t
 579 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 580                 uint16_t nb_pkts, uint16_t len)
 581 {
 582         struct ipsec_sa *sas[nb_pkts];
 583
 584         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 585
 586         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 587
 588         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 589 }
 590
 591 uint16_t
 592 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 593                 uint16_t len)
 594 {
 595         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 596 }
 597
 598 uint16_t
 599 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 600                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 601 {
 602         struct ipsec_sa *sas[nb_pkts];
 603
 604         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 605
 606         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 607
 608         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 609 }
 610
 611 uint16_t
 612 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 613                 uint16_t len)
 614 {
 615         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 616 }