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         ipsec->replay_win_sz = app_sa_prm.window_size;
  53         ipsec->options.esn = app_sa_prm.enable_esn;
  54 }
  55
  56 int
  57 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa,
  58                 struct rte_ipsec_session *ips)
  59 {
  60         struct rte_cryptodev_info cdev_info;
  61         unsigned long cdev_id_qp = 0;
  62         int32_t ret = 0;
  63         struct cdev_key key = { 0 };
  64
  65         key.lcore_id = (uint8_t)rte_lcore_id();
  66
  67         key.cipher_algo = (uint8_t)sa->cipher_algo;
  68         key.auth_algo = (uint8_t)sa->auth_algo;
  69         key.aead_algo = (uint8_t)sa->aead_algo;
  70
  71         ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
  72                         (void **)&cdev_id_qp);
  73         if (ret < 0) {
  74                 RTE_LOG(ERR, IPSEC,
  75                                 "No cryptodev: core %u, cipher_algo %u, "
  76                                 "auth_algo %u, aead_algo %u\n",
  77                                 key.lcore_id,
  78                                 key.cipher_algo,
  79                                 key.auth_algo,
  80                                 key.aead_algo);
  81                 return -1;
  82         }
  83
  84         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
  85                         "%u qp %u\n", sa->spi,
  86                         ipsec_ctx->tbl[cdev_id_qp].id,
  87                         ipsec_ctx->tbl[cdev_id_qp].qp);
  88
  89         if (ips->type != RTE_SECURITY_ACTION_TYPE_NONE) {
  90                 struct rte_security_session_conf sess_conf = {
  91                         .action_type = ips->type,
  92                         .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
  93                         {.ipsec = {
  94                                 .spi = sa->spi,
  95                                 .salt = sa->salt,
  96                                 .options = { 0 },
  97                                 .replay_win_sz = 0,
  98                                 .direction = sa->direction,
  99                                 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 100                                 .mode = (IS_TUNNEL(sa->flags)) ?
 101                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 102                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 103                         } },
 104                         .crypto_xform = sa->xforms,
 105                         .userdata = NULL,
 106
 107                 };
 108
 109                 if (ips->type == RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 110                         struct rte_security_ctx *ctx = (struct rte_security_ctx *)
 111                                                         rte_cryptodev_get_sec_ctx(
 112                                                         ipsec_ctx->tbl[cdev_id_qp].id);
 113
 114                         /* Set IPsec parameters in conf */
 115                         set_ipsec_conf(sa, &(sess_conf.ipsec));
 116
 117                         ips->security.ses = rte_security_session_create(ctx,
 118                                         &sess_conf, ipsec_ctx->session_priv_pool);
 119                         if (ips->security.ses == NULL) {
 120                                 RTE_LOG(ERR, IPSEC,
 121                                 "SEC Session init failed: err: %d\n", ret);
 122                                 return -1;
 123                         }
 124                 } else {
 125                         RTE_LOG(ERR, IPSEC, "Inline not supported\n");
 126                         return -1;
 127                 }
 128         } else {
 129                 ips->crypto.ses = rte_cryptodev_sym_session_create(
 130                                 ipsec_ctx->session_pool);
 131                 rte_cryptodev_sym_session_init(ipsec_ctx->tbl[cdev_id_qp].id,
 132                                 ips->crypto.ses, sa->xforms,
 133                                 ipsec_ctx->session_priv_pool);
 134
 135                 rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id,
 136                                 &cdev_info);
 137         }
 138
 139         sa->cdev_id_qp = cdev_id_qp;
 140
 141         return 0;
 142 }
 143
 144 int
 145 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa,
 146                 struct rte_ipsec_session *ips)
 147 {
 148         int32_t ret = 0;
 149         struct rte_security_ctx *sec_ctx;
 150         struct rte_security_session_conf sess_conf = {
 151                 .action_type = ips->type,
 152                 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
 153                 {.ipsec = {
 154                         .spi = sa->spi,
 155                         .salt = sa->salt,
 156                         .options = { 0 },
 157                         .replay_win_sz = 0,
 158                         .direction = sa->direction,
 159                         .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 160                         .mode = (sa->flags == IP4_TUNNEL ||
 161                                         sa->flags == IP6_TUNNEL) ?
 162                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 163                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 164                 } },
 165                 .crypto_xform = sa->xforms,
 166                 .userdata = NULL,
 167         };
 168
 169         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n",
 170                 sa->spi, sa->portid);
 171
 172         if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
 173                 struct rte_flow_error err;
 174                 const struct rte_security_capability *sec_cap;
 175                 int ret = 0;
 176
 177                 sec_ctx = (struct rte_security_ctx *)
 178                                         rte_eth_dev_get_sec_ctx(
 179                                         sa->portid);
 180                 if (sec_ctx == NULL) {
 181                         RTE_LOG(ERR, IPSEC,
 182                                 " rte_eth_dev_get_sec_ctx failed\n");
 183                         return -1;
 184                 }
 185
 186                 ips->security.ses = rte_security_session_create(sec_ctx,
 187                                 &sess_conf, skt_ctx->session_pool);
 188                 if (ips->security.ses == NULL) {
 189                         RTE_LOG(ERR, IPSEC,
 190                                 "SEC Session init failed: err: %d\n", ret);
 191                         return -1;
 192                 }
 193
 194                 sec_cap = rte_security_capabilities_get(sec_ctx);
 195
 196                 /* iterate until ESP tunnel*/
 197                 while (sec_cap->action != RTE_SECURITY_ACTION_TYPE_NONE) {
 198                         if (sec_cap->action == ips->type &&
 199                             sec_cap->protocol ==
 200                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 201                             sec_cap->ipsec.mode ==
 202                                 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL &&
 203                             sec_cap->ipsec.direction == sa->direction)
 204                                 break;
 205                         sec_cap++;
 206                 }
 207
 208                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 209                         RTE_LOG(ERR, IPSEC,
 210                                 "No suitable security capability found\n");
 211                         return -1;
 212                 }
 213
 214                 ips->security.ol_flags = sec_cap->ol_flags;
 215                 ips->security.ctx = sec_ctx;
 216                 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 217
 218                 if (IS_IP6(sa->flags)) {
 219                         sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 220                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 221                         sa->pattern[1].spec = &sa->ipv6_spec;
 222
 223                         memcpy(sa->ipv6_spec.hdr.dst_addr,
 224                                 sa->dst.ip.ip6.ip6_b, 16);
 225                         memcpy(sa->ipv6_spec.hdr.src_addr,
 226                                sa->src.ip.ip6.ip6_b, 16);
 227                 } else if (IS_IP4(sa->flags)) {
 228                         sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 229                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 230                         sa->pattern[1].spec = &sa->ipv4_spec;
 231
 232                         sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 233                         sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 234                 }
 235
 236                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 237                 sa->pattern[2].spec = &sa->esp_spec;
 238                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 239                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 240
 241                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 242
 243                 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
 244                 sa->action[0].conf = ips->security.ses;
 245
 246                 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 247
 248                 sa->attr.egress = (sa->direction ==
 249                                 RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
 250                 sa->attr.ingress = (sa->direction ==
 251                                 RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
 252                 if (sa->attr.ingress) {
 253                         uint8_t rss_key[40];
 254                         struct rte_eth_rss_conf rss_conf = {
 255                                 .rss_key = rss_key,
 256                                 .rss_key_len = 40,
 257                         };
 258                         struct rte_eth_dev_info dev_info;
 259                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
 260                         struct rte_flow_action_rss action_rss;
 261                         unsigned int i;
 262                         unsigned int j;
 263
 264                         ret = rte_eth_dev_info_get(sa->portid, &dev_info);
 265                         if (ret != 0) {
 266                                 RTE_LOG(ERR, IPSEC,
 267                                         "Error during getting device (port %u) info: %s\n",
 268                                         sa->portid, strerror(-ret));
 269                                 return ret;
 270                         }
 271
 272                         sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
 273                         /* Try RSS. */
 274                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
 275                         sa->action[1].conf = &action_rss;
 276                         ret = rte_eth_dev_rss_hash_conf_get(sa->portid,
 277                                         &rss_conf);
 278                         if (ret != 0) {
 279                                 RTE_LOG(ERR, IPSEC,
 280                                         "rte_eth_dev_rss_hash_conf_get:ret=%d\n",
 281                                         ret);
 282                                 return -1;
 283                         }
 284                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 285                                 queue[j++] = i;
 286
 287                         action_rss = (struct rte_flow_action_rss){
 288                                         .types = rss_conf.rss_hf,
 289                                         .key_len = rss_conf.rss_key_len,
 290                                         .queue_num = j,
 291                                         .key = rss_key,
 292                                         .queue = queue,
 293                         };
 294                         ret = rte_flow_validate(sa->portid, &sa->attr,
 295                                                 sa->pattern, sa->action,
 296                                                 &err);
 297                         if (!ret)
 298                                 goto flow_create;
 299                         /* Try Queue. */
 300                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 301                         sa->action[1].conf =
 302                                 &(struct rte_flow_action_queue){
 303                                 .index = 0,
 304                         };
 305                         ret = rte_flow_validate(sa->portid, &sa->attr,
 306                                                 sa->pattern, sa->action,
 307                                                 &err);
 308                         /* Try End. */
 309                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 310                         sa->action[1].conf = NULL;
 311                         ret = rte_flow_validate(sa->portid, &sa->attr,
 312                                                 sa->pattern, sa->action,
 313                                                 &err);
 314                         if (ret)
 315                                 goto flow_create_failure;
 316                 } else if (sa->attr.egress &&
 317                                 (ips->security.ol_flags &
 318                                         RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 319                         sa->action[1].type =
 320                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 321                         sa->action[2].type =
 322                                         RTE_FLOW_ACTION_TYPE_END;
 323                 }
 324 flow_create:
 325                 sa->flow = rte_flow_create(sa->portid,
 326                                 &sa->attr, sa->pattern, sa->action, &err);
 327                 if (sa->flow == NULL) {
 328 flow_create_failure:
 329                         RTE_LOG(ERR, IPSEC,
 330                                 "Failed to create ipsec flow msg: %s\n",
 331                                 err.message);
 332                         return -1;
 333                 }
 334         } else if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 335                 const struct rte_security_capability *sec_cap;
 336
 337                 sec_ctx = (struct rte_security_ctx *)
 338                                 rte_eth_dev_get_sec_ctx(sa->portid);
 339
 340                 if (sec_ctx == NULL) {
 341                         RTE_LOG(ERR, IPSEC,
 342                                 "Ethernet device doesn't have security features registered\n");
 343                         return -1;
 344                 }
 345
 346                 /* Set IPsec parameters in conf */
 347                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 348
 349                 /* Save SA as userdata for the security session. When
 350                  * the packet is received, this userdata will be
 351                  * retrieved using the metadata from the packet.
 352                  *
 353                  * The PMD is expected to set similar metadata for other
 354                  * operations, like rte_eth_event, which are tied to
 355                  * security session. In such cases, the userdata could
 356                  * be obtained to uniquely identify the security
 357                  * parameters denoted.
 358                  */
 359
 360                 sess_conf.userdata = (void *) sa;
 361
 362                 ips->security.ses = rte_security_session_create(sec_ctx,
 363                                         &sess_conf, skt_ctx->session_pool);
 364                 if (ips->security.ses == NULL) {
 365                         RTE_LOG(ERR, IPSEC,
 366                                 "SEC Session init failed: err: %d\n", ret);
 367                         return -1;
 368                 }
 369
 370                 sec_cap = rte_security_capabilities_get(sec_ctx);
 371                 if (sec_cap == NULL) {
 372                         RTE_LOG(ERR, IPSEC,
 373                                 "No capabilities registered\n");
 374                         return -1;
 375                 }
 376
 377                 /* iterate until ESP tunnel*/
 378                 while (sec_cap->action !=
 379                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 380                         if (sec_cap->action == ips->type &&
 381                             sec_cap->protocol ==
 382                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 383                             sec_cap->ipsec.mode ==
 384                                 sess_conf.ipsec.mode &&
 385                             sec_cap->ipsec.direction == sa->direction)
 386                                 break;
 387                         sec_cap++;
 388                 }
 389
 390                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 391                         RTE_LOG(ERR, IPSEC,
 392                                 "No suitable security capability found\n");
 393                         return -1;
 394                 }
 395
 396                 ips->security.ol_flags = sec_cap->ol_flags;
 397                 ips->security.ctx = sec_ctx;
 398         }
 399         sa->cdev_id_qp = 0;
 400
 401         return 0;
 402 }
 403
 404 /*
 405  * queue crypto-ops into PMD queue.
 406  */
 407 void
 408 enqueue_cop_burst(struct cdev_qp *cqp)
 409 {
 410         uint32_t i, len, ret;
 411
 412         len = cqp->len;
 413         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 414         if (ret < len) {
 415                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 416                         " enqueued %u crypto ops out of %u\n",
 417                         cqp->id, cqp->qp, ret, len);
 418                         /* drop packets that we fail to enqueue */
 419                         for (i = ret; i < len; i++)
 420                                 rte_pktmbuf_free(cqp->buf[i]->sym->m_src);
 421         }
 422         cqp->in_flight += ret;
 423         cqp->len = 0;
 424 }
 425
 426 static inline void
 427 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 428 {
 429         cqp->buf[cqp->len++] = cop;
 430
 431         if (cqp->len == MAX_PKT_BURST)
 432                 enqueue_cop_burst(cqp);
 433 }
 434
 435 static inline void
 436 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 437                 struct rte_mbuf *pkts[], void *sas[],
 438                 uint16_t nb_pkts)
 439 {
 440         int32_t ret = 0, i;
 441         struct ipsec_mbuf_metadata *priv;
 442         struct rte_crypto_sym_op *sym_cop;
 443         struct ipsec_sa *sa;
 444         struct rte_ipsec_session *ips;
 445
 446         for (i = 0; i < nb_pkts; i++) {
 447                 if (unlikely(sas[i] == NULL)) {
 448                         rte_pktmbuf_free(pkts[i]);
 449                         continue;
 450                 }
 451
 452                 rte_prefetch0(sas[i]);
 453                 rte_prefetch0(pkts[i]);
 454
 455                 priv = get_priv(pkts[i]);
 456                 sa = ipsec_mask_saptr(sas[i]);
 457                 priv->sa = sa;
 458                 ips = ipsec_get_primary_session(sa);
 459
 460                 switch (ips->type) {
 461                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 462                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 463                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 464
 465                         rte_prefetch0(&priv->sym_cop);
 466
 467                         if ((unlikely(ips->security.ses == NULL)) &&
 468                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 469                                 rte_pktmbuf_free(pkts[i]);
 470                                 continue;
 471                         }
 472
 473                         sym_cop = get_sym_cop(&priv->cop);
 474                         sym_cop->m_src = pkts[i];
 475
 476                         rte_security_attach_session(&priv->cop,
 477                                 ips->security.ses);
 478                         break;
 479                 case RTE_SECURITY_ACTION_TYPE_NONE:
 480
 481                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 482                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 483
 484                         rte_prefetch0(&priv->sym_cop);
 485
 486                         if ((unlikely(ips->crypto.ses == NULL)) &&
 487                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 488                                 rte_pktmbuf_free(pkts[i]);
 489                                 continue;
 490                         }
 491
 492                         rte_crypto_op_attach_sym_session(&priv->cop,
 493                                         ips->crypto.ses);
 494
 495                         ret = xform_func(pkts[i], sa, &priv->cop);
 496                         if (unlikely(ret)) {
 497                                 rte_pktmbuf_free(pkts[i]);
 498                                 continue;
 499                         }
 500                         break;
 501                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 502                         RTE_ASSERT(ips->security.ses != NULL);
 503                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 504                         if (ips->security.ol_flags &
 505                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 506                                 rte_security_set_pkt_metadata(
 507                                         ips->security.ctx, ips->security.ses,
 508                                         pkts[i], NULL);
 509                         continue;
 510                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 511                         RTE_ASSERT(ips->security.ses != NULL);
 512                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 513                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 514
 515                         rte_prefetch0(&priv->sym_cop);
 516                         rte_security_attach_session(&priv->cop,
 517                                         ips->security.ses);
 518
 519                         ret = xform_func(pkts[i], sa, &priv->cop);
 520                         if (unlikely(ret)) {
 521                                 rte_pktmbuf_free(pkts[i]);
 522                                 continue;
 523                         }
 524
 525                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 526                         if (ips->security.ol_flags &
 527                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 528                                 rte_security_set_pkt_metadata(
 529                                         ips->security.ctx, ips->security.ses,
 530                                         pkts[i], NULL);
 531                         continue;
 532                 }
 533
 534                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 535                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 536         }
 537 }
 538
 539 static inline int32_t
 540 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 541               struct rte_mbuf *pkts[], uint16_t max_pkts)
 542 {
 543         int32_t nb_pkts, ret;
 544         struct ipsec_mbuf_metadata *priv;
 545         struct ipsec_sa *sa;
 546         struct rte_mbuf *pkt;
 547
 548         nb_pkts = 0;
 549         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 550                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 551                 rte_prefetch0(pkt);
 552                 priv = get_priv(pkt);
 553                 sa = priv->sa;
 554                 ret = xform_func(pkt, sa, &priv->cop);
 555                 if (unlikely(ret)) {
 556                         rte_pktmbuf_free(pkt);
 557                         continue;
 558                 }
 559                 pkts[nb_pkts++] = pkt;
 560         }
 561
 562         return nb_pkts;
 563 }
 564
 565 static inline int
 566 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 567               struct rte_mbuf *pkts[], uint16_t max_pkts)
 568 {
 569         int32_t nb_pkts = 0, ret = 0, i, j, nb_cops;
 570         struct ipsec_mbuf_metadata *priv;
 571         struct rte_crypto_op *cops[max_pkts];
 572         struct ipsec_sa *sa;
 573         struct rte_mbuf *pkt;
 574
 575         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 576                 struct cdev_qp *cqp;
 577
 578                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 579                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 580                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 581
 582                 if (cqp->in_flight == 0)
 583                         continue;
 584
 585                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 586                                 cops, max_pkts - nb_pkts);
 587
 588                 cqp->in_flight -= nb_cops;
 589
 590                 for (j = 0; j < nb_cops; j++) {
 591                         pkt = cops[j]->sym->m_src;
 592                         rte_prefetch0(pkt);
 593
 594                         priv = get_priv(pkt);
 595                         sa = priv->sa;
 596
 597                         RTE_ASSERT(sa != NULL);
 598
 599                         if (ipsec_get_action_type(sa) ==
 600                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 601                                 ret = xform_func(pkt, sa, cops[j]);
 602                                 if (unlikely(ret)) {
 603                                         rte_pktmbuf_free(pkt);
 604                                         continue;
 605                                 }
 606                         } else if (ipsec_get_action_type(sa) ==
 607                                 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 608                                 if (cops[j]->status) {
 609                                         rte_pktmbuf_free(pkt);
 610                                         continue;
 611                                 }
 612                         }
 613                         pkts[nb_pkts++] = pkt;
 614                 }
 615         }
 616
 617         /* return packets */
 618         return nb_pkts;
 619 }
 620
 621 uint16_t
 622 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 623                 uint16_t nb_pkts, uint16_t len)
 624 {
 625         void *sas[nb_pkts];
 626
 627         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 628
 629         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 630
 631         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 632 }
 633
 634 uint16_t
 635 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 636                 uint16_t len)
 637 {
 638         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 639 }
 640
 641 uint16_t
 642 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 643                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 644 {
 645         void *sas[nb_pkts];
 646
 647         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 648
 649         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 650
 651         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 652 }
 653
 654 uint16_t
 655 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 656                 uint16_t len)
 657 {
 658         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 659 }