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                         ret = rte_eth_dev_rss_hash_conf_get(sa->portid,
 252                                         &rss_conf);
 253                         if (ret != 0) {
 254                                 RTE_LOG(ERR, IPSEC,
 255                                         "rte_eth_dev_rss_hash_conf_get:ret=%d\n",
 256                                         ret);
 257                                 return -1;
 258                         }
 259                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 260                                 queue[j++] = i;
 261
 262                         action_rss = (struct rte_flow_action_rss){
 263                                         .types = rss_conf.rss_hf,
 264                                         .key_len = rss_conf.rss_key_len,
 265                                         .queue_num = j,
 266                                         .key = rss_key,
 267                                         .queue = queue,
 268                         };
 269                         ret = rte_flow_validate(sa->portid, &sa->attr,
 270                                                 sa->pattern, sa->action,
 271                                                 &err);
 272                         if (!ret)
 273                                 goto flow_create;
 274                         /* Try Queue. */
 275                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 276                         sa->action[1].conf =
 277                                 &(struct rte_flow_action_queue){
 278                                 .index = 0,
 279                         };
 280                         ret = rte_flow_validate(sa->portid, &sa->attr,
 281                                                 sa->pattern, sa->action,
 282                                                 &err);
 283                         /* Try End. */
 284                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 285                         sa->action[1].conf = NULL;
 286                         ret = rte_flow_validate(sa->portid, &sa->attr,
 287                                                 sa->pattern, sa->action,
 288                                                 &err);
 289                         if (ret)
 290                                 goto flow_create_failure;
 291                 } else if (sa->attr.egress &&
 292                            (sa->ol_flags &
 293                                     RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 294                         sa->action[1].type =
 295                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 296                         sa->action[2].type =
 297                                         RTE_FLOW_ACTION_TYPE_END;
 298                 }
 299 flow_create:
 300                 sa->flow = rte_flow_create(sa->portid,
 301                                 &sa->attr, sa->pattern, sa->action, &err);
 302                 if (sa->flow == NULL) {
 303 flow_create_failure:
 304                         RTE_LOG(ERR, IPSEC,
 305                                 "Failed to create ipsec flow msg: %s\n",
 306                                 err.message);
 307                         return -1;
 308                 }
 309         } else if (sa->type ==  RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 310                 const struct rte_security_capability *sec_cap;
 311
 312                 sec_ctx = (struct rte_security_ctx *)
 313                                 rte_eth_dev_get_sec_ctx(sa->portid);
 314
 315                 if (sec_ctx == NULL) {
 316                         RTE_LOG(ERR, IPSEC,
 317                                 "Ethernet device doesn't have security features registered\n");
 318                         return -1;
 319                 }
 320
 321                 /* Set IPsec parameters in conf */
 322                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 323
 324                 /* Save SA as userdata for the security session. When
 325                  * the packet is received, this userdata will be
 326                  * retrieved using the metadata from the packet.
 327                  *
 328                  * The PMD is expected to set similar metadata for other
 329                  * operations, like rte_eth_event, which are tied to
 330                  * security session. In such cases, the userdata could
 331                  * be obtained to uniquely identify the security
 332                  * parameters denoted.
 333                  */
 334
 335                 sess_conf.userdata = (void *) sa;
 336
 337                 sa->sec_session = rte_security_session_create(sec_ctx,
 338                                         &sess_conf, skt_ctx->session_pool);
 339                 if (sa->sec_session == NULL) {
 340                         RTE_LOG(ERR, IPSEC,
 341                                 "SEC Session init failed: err: %d\n", ret);
 342                         return -1;
 343                 }
 344
 345                 sec_cap = rte_security_capabilities_get(sec_ctx);
 346                 if (sec_cap == NULL) {
 347                         RTE_LOG(ERR, IPSEC,
 348                                 "No capabilities registered\n");
 349                         return -1;
 350                 }
 351
 352                 /* iterate until ESP tunnel*/
 353                 while (sec_cap->action !=
 354                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 355                         if (sec_cap->action == sa->type &&
 356                             sec_cap->protocol ==
 357                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 358                             sec_cap->ipsec.mode ==
 359                                 sess_conf.ipsec.mode &&
 360                             sec_cap->ipsec.direction == sa->direction)
 361                                 break;
 362                         sec_cap++;
 363                 }
 364
 365                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 366                         RTE_LOG(ERR, IPSEC,
 367                                 "No suitable security capability found\n");
 368                         return -1;
 369                 }
 370
 371                 sa->ol_flags = sec_cap->ol_flags;
 372                 sa->security_ctx = sec_ctx;
 373         }
 374         sa->cdev_id_qp = 0;
 375
 376         return 0;
 377 }
 378
 379 /*
 380  * queue crypto-ops into PMD queue.
 381  */
 382 void
 383 enqueue_cop_burst(struct cdev_qp *cqp)
 384 {
 385         uint32_t i, len, ret;
 386
 387         len = cqp->len;
 388         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 389         if (ret < len) {
 390                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 391                         " enqueued %u crypto ops out of %u\n",
 392                         cqp->id, cqp->qp, ret, len);
 393                         /* drop packets that we fail to enqueue */
 394                         for (i = ret; i < len; i++)
 395                                 rte_pktmbuf_free(cqp->buf[i]->sym->m_src);
 396         }
 397         cqp->in_flight += ret;
 398         cqp->len = 0;
 399 }
 400
 401 static inline void
 402 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 403 {
 404         cqp->buf[cqp->len++] = cop;
 405
 406         if (cqp->len == MAX_PKT_BURST)
 407                 enqueue_cop_burst(cqp);
 408 }
 409
 410 static inline void
 411 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 412                 struct rte_mbuf *pkts[], struct ipsec_sa *sas[],
 413                 uint16_t nb_pkts)
 414 {
 415         int32_t ret = 0, i;
 416         struct ipsec_mbuf_metadata *priv;
 417         struct rte_crypto_sym_op *sym_cop;
 418         struct ipsec_sa *sa;
 419
 420         for (i = 0; i < nb_pkts; i++) {
 421                 if (unlikely(sas[i] == NULL)) {
 422                         rte_pktmbuf_free(pkts[i]);
 423                         continue;
 424                 }
 425
 426                 rte_prefetch0(sas[i]);
 427                 rte_prefetch0(pkts[i]);
 428
 429                 priv = get_priv(pkts[i]);
 430                 sa = sas[i];
 431                 priv->sa = sa;
 432
 433                 switch (sa->type) {
 434                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 435                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 436                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 437
 438                         rte_prefetch0(&priv->sym_cop);
 439
 440                         if ((unlikely(sa->sec_session == NULL)) &&
 441                                 create_lookaside_session(ipsec_ctx, sa)) {
 442                                 rte_pktmbuf_free(pkts[i]);
 443                                 continue;
 444                         }
 445
 446                         sym_cop = get_sym_cop(&priv->cop);
 447                         sym_cop->m_src = pkts[i];
 448
 449                         rte_security_attach_session(&priv->cop,
 450                                         sa->sec_session);
 451                         break;
 452                 case RTE_SECURITY_ACTION_TYPE_NONE:
 453
 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->crypto_session == NULL)) &&
 460                                 create_lookaside_session(ipsec_ctx, sa)) {
 461                                 rte_pktmbuf_free(pkts[i]);
 462                                 continue;
 463                         }
 464
 465                         rte_crypto_op_attach_sym_session(&priv->cop,
 466                                         sa->crypto_session);
 467
 468                         ret = xform_func(pkts[i], sa, &priv->cop);
 469                         if (unlikely(ret)) {
 470                                 rte_pktmbuf_free(pkts[i]);
 471                                 continue;
 472                         }
 473                         break;
 474                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 475                         RTE_ASSERT(sa->sec_session != NULL);
 476                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 477                         if (sa->ol_flags & RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 478                                 rte_security_set_pkt_metadata(
 479                                                 sa->security_ctx,
 480                                                 sa->sec_session, pkts[i], NULL);
 481                         continue;
 482                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 483                         RTE_ASSERT(sa->sec_session != NULL);
 484                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 485                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 486
 487                         rte_prefetch0(&priv->sym_cop);
 488                         rte_security_attach_session(&priv->cop,
 489                                         sa->sec_session);
 490
 491                         ret = xform_func(pkts[i], sa, &priv->cop);
 492                         if (unlikely(ret)) {
 493                                 rte_pktmbuf_free(pkts[i]);
 494                                 continue;
 495                         }
 496
 497                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 498                         if (sa->ol_flags & RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 499                                 rte_security_set_pkt_metadata(
 500                                                 sa->security_ctx,
 501                                                 sa->sec_session, pkts[i], NULL);
 502                         continue;
 503                 }
 504
 505                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 506                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 507         }
 508 }
 509
 510 static inline int32_t
 511 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 512               struct rte_mbuf *pkts[], uint16_t max_pkts)
 513 {
 514         int32_t nb_pkts, ret;
 515         struct ipsec_mbuf_metadata *priv;
 516         struct ipsec_sa *sa;
 517         struct rte_mbuf *pkt;
 518
 519         nb_pkts = 0;
 520         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 521                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 522                 rte_prefetch0(pkt);
 523                 priv = get_priv(pkt);
 524                 sa = priv->sa;
 525                 ret = xform_func(pkt, sa, &priv->cop);
 526                 if (unlikely(ret)) {
 527                         rte_pktmbuf_free(pkt);
 528                         continue;
 529                 }
 530                 pkts[nb_pkts++] = pkt;
 531         }
 532
 533         return nb_pkts;
 534 }
 535
 536 static inline int
 537 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 538               struct rte_mbuf *pkts[], uint16_t max_pkts)
 539 {
 540         int32_t nb_pkts = 0, ret = 0, i, j, nb_cops;
 541         struct ipsec_mbuf_metadata *priv;
 542         struct rte_crypto_op *cops[max_pkts];
 543         struct ipsec_sa *sa;
 544         struct rte_mbuf *pkt;
 545
 546         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 547                 struct cdev_qp *cqp;
 548
 549                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 550                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 551                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 552
 553                 if (cqp->in_flight == 0)
 554                         continue;
 555
 556                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 557                                 cops, max_pkts - nb_pkts);
 558
 559                 cqp->in_flight -= nb_cops;
 560
 561                 for (j = 0; j < nb_cops; j++) {
 562                         pkt = cops[j]->sym->m_src;
 563                         rte_prefetch0(pkt);
 564
 565                         priv = get_priv(pkt);
 566                         sa = priv->sa;
 567
 568                         RTE_ASSERT(sa != NULL);
 569
 570                         if (sa->type == RTE_SECURITY_ACTION_TYPE_NONE) {
 571                                 ret = xform_func(pkt, sa, cops[j]);
 572                                 if (unlikely(ret)) {
 573                                         rte_pktmbuf_free(pkt);
 574                                         continue;
 575                                 }
 576                         }
 577                         pkts[nb_pkts++] = pkt;
 578                 }
 579         }
 580
 581         /* return packets */
 582         return nb_pkts;
 583 }
 584
 585 uint16_t
 586 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 587                 uint16_t nb_pkts, uint16_t len)
 588 {
 589         struct ipsec_sa *sas[nb_pkts];
 590
 591         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 592
 593         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 594
 595         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 596 }
 597
 598 uint16_t
 599 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 600                 uint16_t len)
 601 {
 602         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 603 }
 604
 605 uint16_t
 606 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 607                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 608 {
 609         struct ipsec_sa *sas[nb_pkts];
 610
 611         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 612
 613         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 614
 615         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 616 }
 617
 618 uint16_t
 619 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 620                 uint16_t len)
 621 {
 622         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 623 }