drivers/crypto/zuc/rte_zuc_pmd.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <rte_common.h>
  34 #include <rte_config.h>
  35 #include <rte_hexdump.h>
  36 #include <rte_cryptodev.h>
  37 #include <rte_cryptodev_pmd.h>
  38 #include <rte_cryptodev_vdev.h>
  39 #include <rte_vdev.h>
  40 #include <rte_malloc.h>
  41 #include <rte_cpuflags.h>
  42
  43 #include "rte_zuc_pmd_private.h"
  44
  45 #define ZUC_DIGEST_LENGTH 4
  46 #define ZUC_MAX_BURST 8
  47 #define BYTE_LEN 8
  48
  49 static uint8_t cryptodev_driver_id;
  50
  51 /** Get xform chain order. */
  52 static enum zuc_operation
  53 zuc_get_mode(const struct rte_crypto_sym_xform *xform)
  54 {
  55         if (xform == NULL)
  56                 return ZUC_OP_NOT_SUPPORTED;
  57
  58         if (xform->next)
  59                 if (xform->next->next != NULL)
  60                         return ZUC_OP_NOT_SUPPORTED;
  61
  62         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  63                 if (xform->next == NULL)
  64                         return ZUC_OP_ONLY_AUTH;
  65                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
  66                         return ZUC_OP_AUTH_CIPHER;
  67                 else
  68                         return ZUC_OP_NOT_SUPPORTED;
  69         }
  70
  71         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  72                 if (xform->next == NULL)
  73                         return ZUC_OP_ONLY_CIPHER;
  74                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  75                         return ZUC_OP_CIPHER_AUTH;
  76                 else
  77                         return ZUC_OP_NOT_SUPPORTED;
  78         }
  79
  80         return ZUC_OP_NOT_SUPPORTED;
  81 }
  82
  83
  84 /** Parse crypto xform chain and set private session parameters. */
  85 int
  86 zuc_set_session_parameters(struct zuc_session *sess,
  87                 const struct rte_crypto_sym_xform *xform)
  88 {
  89         const struct rte_crypto_sym_xform *auth_xform = NULL;
  90         const struct rte_crypto_sym_xform *cipher_xform = NULL;
  91         enum zuc_operation mode;
  92
  93         /* Select Crypto operation - hash then cipher / cipher then hash */
  94         mode = zuc_get_mode(xform);
  95
  96         switch (mode) {
  97         case ZUC_OP_CIPHER_AUTH:
  98                 auth_xform = xform->next;
  99
 100                 /* Fall-through */
 101         case ZUC_OP_ONLY_CIPHER:
 102                 cipher_xform = xform;
 103                 break;
 104         case ZUC_OP_AUTH_CIPHER:
 105                 cipher_xform = xform->next;
 106                 /* Fall-through */
 107         case ZUC_OP_ONLY_AUTH:
 108                 auth_xform = xform;
 109                 break;
 110         case ZUC_OP_NOT_SUPPORTED:
 111         default:
 112                 ZUC_LOG_ERR("Unsupported operation chain order parameter");
 113                 return -ENOTSUP;
 114         }
 115
 116         if (cipher_xform) {
 117                 /* Only ZUC EEA3 supported */
 118                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_ZUC_EEA3)
 119                         return -ENOTSUP;
 120
 121                 if (cipher_xform->cipher.iv.length != ZUC_IV_KEY_LENGTH) {
 122                         ZUC_LOG_ERR("Wrong IV length");
 123                         return -EINVAL;
 124                 }
 125                 sess->cipher_iv_offset = cipher_xform->cipher.iv.offset;
 126
 127                 /* Copy the key */
 128                 memcpy(sess->pKey_cipher, cipher_xform->cipher.key.data,
 129                                 ZUC_IV_KEY_LENGTH);
 130         }
 131
 132         if (auth_xform) {
 133                 /* Only ZUC EIA3 supported */
 134                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_ZUC_EIA3)
 135                         return -ENOTSUP;
 136
 137                 if (auth_xform->auth.digest_length != ZUC_DIGEST_LENGTH) {
 138                         ZUC_LOG_ERR("Wrong digest length");
 139                         return -EINVAL;
 140                 }
 141
 142                 sess->auth_op = auth_xform->auth.op;
 143
 144                 if (auth_xform->auth.iv.length != ZUC_IV_KEY_LENGTH) {
 145                         ZUC_LOG_ERR("Wrong IV length");
 146                         return -EINVAL;
 147                 }
 148                 sess->auth_iv_offset = auth_xform->auth.iv.offset;
 149
 150                 /* Copy the key */
 151                 memcpy(sess->pKey_hash, auth_xform->auth.key.data,
 152                                 ZUC_IV_KEY_LENGTH);
 153         }
 154
 155
 156         sess->op = mode;
 157
 158         return 0;
 159 }
 160
 161 /** Get ZUC session. */
 162 static struct zuc_session *
 163 zuc_get_session(struct zuc_qp *qp, struct rte_crypto_op *op)
 164 {
 165         struct zuc_session *sess = NULL;
 166
 167         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 168                 if (likely(op->sym->session != NULL))
 169                         sess = (struct zuc_session *)get_session_private_data(
 170                                         op->sym->session,
 171                                         cryptodev_driver_id);
 172         } else {
 173                 void *_sess = NULL;
 174                 void *_sess_private_data = NULL;
 175
 176                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 177                         return NULL;
 178
 179                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
 180                         return NULL;
 181
 182                 sess = (struct zuc_session *)_sess_private_data;
 183
 184                 if (unlikely(zuc_set_session_parameters(sess,
 185                                 op->sym->xform) != 0)) {
 186                         rte_mempool_put(qp->sess_mp, _sess);
 187                         rte_mempool_put(qp->sess_mp, _sess_private_data);
 188                         sess = NULL;
 189                 }
 190                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 191                 set_session_private_data(op->sym->session, cryptodev_driver_id,
 192                         _sess_private_data);
 193         }
 194
 195         if (unlikely(sess == NULL))
 196                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 197
 198
 199         return sess;
 200 }
 201
 202 /** Encrypt/decrypt mbufs with same cipher key. */
 203 static uint8_t
 204 process_zuc_cipher_op(struct rte_crypto_op **ops,
 205                 struct zuc_session *session,
 206                 uint8_t num_ops)
 207 {
 208         unsigned i;
 209         uint8_t processed_ops = 0;
 210         uint8_t *src[ZUC_MAX_BURST], *dst[ZUC_MAX_BURST];
 211         uint8_t *iv[ZUC_MAX_BURST];
 212         uint32_t num_bytes[ZUC_MAX_BURST];
 213         uint8_t *cipher_keys[ZUC_MAX_BURST];
 214
 215         for (i = 0; i < num_ops; i++) {
 216                 if (((ops[i]->sym->cipher.data.length % BYTE_LEN) != 0)
 217                                 || ((ops[i]->sym->cipher.data.offset
 218                                         % BYTE_LEN) != 0)) {
 219                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 220                         ZUC_LOG_ERR("Data Length or offset");
 221                         break;
 222                 }
 223
 224 #ifdef RTE_LIBRTE_PMD_ZUC_DEBUG
 225                 if (!rte_pktmbuf_is_contiguous(ops[i]->sym->m_src) ||
 226                                 (ops[i]->sym->m_dst != NULL &&
 227                                 !rte_pktmbuf_is_contiguous(
 228                                                 ops[i]->sym->m_dst))) {
 229                         ZUC_LOG_ERR("PMD supports only contiguous mbufs, "
 230                                 "op (%p) provides noncontiguous mbuf as "
 231                                 "source/destination buffer.\n", ops[i]);
 232                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 233                         break;
 234                 }
 235 #endif
 236
 237                 src[i] = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 238                                 (ops[i]->sym->cipher.data.offset >> 3);
 239                 dst[i] = ops[i]->sym->m_dst ?
 240                         rte_pktmbuf_mtod(ops[i]->sym->m_dst, uint8_t *) +
 241                                 (ops[i]->sym->cipher.data.offset >> 3) :
 242                         rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 243                                 (ops[i]->sym->cipher.data.offset >> 3);
 244                 iv[i] = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 245                                 session->cipher_iv_offset);
 246                 num_bytes[i] = ops[i]->sym->cipher.data.length >> 3;
 247
 248                 cipher_keys[i] = session->pKey_cipher;
 249
 250                 processed_ops++;
 251         }
 252
 253         sso_zuc_eea3_n_buffer(cipher_keys, iv, src, dst,
 254                         num_bytes, processed_ops);
 255
 256         return processed_ops;
 257 }
 258
 259 /** Generate/verify hash from mbufs with same hash key. */
 260 static int
 261 process_zuc_hash_op(struct rte_crypto_op **ops,
 262                 struct zuc_session *session,
 263                 uint8_t num_ops)
 264 {
 265         unsigned i;
 266         uint8_t processed_ops = 0;
 267         uint8_t *src;
 268         uint32_t *dst;
 269         uint32_t length_in_bits;
 270         uint8_t *iv;
 271
 272         for (i = 0; i < num_ops; i++) {
 273                 /* Data must be byte aligned */
 274                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 275                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 276                         ZUC_LOG_ERR("Offset");
 277                         break;
 278                 }
 279
 280                 length_in_bits = ops[i]->sym->auth.data.length;
 281
 282                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 283                                 (ops[i]->sym->auth.data.offset >> 3);
 284                 iv = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 285                                 session->auth_iv_offset);
 286
 287                 if (session->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
 288                         dst = (uint32_t *)rte_pktmbuf_append(ops[i]->sym->m_src,
 289                                         ZUC_DIGEST_LENGTH);
 290
 291                         sso_zuc_eia3_1_buffer(session->pKey_hash,
 292                                         iv, src,
 293                                         length_in_bits, dst);
 294                         /* Verify digest. */
 295                         if (memcmp(dst, ops[i]->sym->auth.digest.data,
 296                                         ZUC_DIGEST_LENGTH) != 0)
 297                                 ops[i]->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 298
 299                         /* Trim area used for digest from mbuf. */
 300                         rte_pktmbuf_trim(ops[i]->sym->m_src,
 301                                         ZUC_DIGEST_LENGTH);
 302                 } else  {
 303                         dst = (uint32_t *)ops[i]->sym->auth.digest.data;
 304
 305                         sso_zuc_eia3_1_buffer(session->pKey_hash,
 306                                         iv, src,
 307                                         length_in_bits, dst);
 308                 }
 309                 processed_ops++;
 310         }
 311
 312         return processed_ops;
 313 }
 314
 315 /** Process a batch of crypto ops which shares the same session. */
 316 static int
 317 process_ops(struct rte_crypto_op **ops, struct zuc_session *session,
 318                 struct zuc_qp *qp, uint8_t num_ops,
 319                 uint16_t *accumulated_enqueued_ops)
 320 {
 321         unsigned i;
 322         unsigned enqueued_ops, processed_ops;
 323
 324         switch (session->op) {
 325         case ZUC_OP_ONLY_CIPHER:
 326                 processed_ops = process_zuc_cipher_op(ops,
 327                                 session, num_ops);
 328                 break;
 329         case ZUC_OP_ONLY_AUTH:
 330                 processed_ops = process_zuc_hash_op(ops, session,
 331                                 num_ops);
 332                 break;
 333         case ZUC_OP_CIPHER_AUTH:
 334                 processed_ops = process_zuc_cipher_op(ops, session,
 335                                 num_ops);
 336                 process_zuc_hash_op(ops, session, processed_ops);
 337                 break;
 338         case ZUC_OP_AUTH_CIPHER:
 339                 processed_ops = process_zuc_hash_op(ops, session,
 340                                 num_ops);
 341                 process_zuc_cipher_op(ops, session, processed_ops);
 342                 break;
 343         default:
 344                 /* Operation not supported. */
 345                 processed_ops = 0;
 346         }
 347
 348         for (i = 0; i < num_ops; i++) {
 349                 /*
 350                  * If there was no error/authentication failure,
 351                  * change status to successful.
 352                  */
 353                 if (ops[i]->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 354                         ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 355                 /* Free session if a session-less crypto op. */
 356                 if (ops[i]->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 357                         memset(session, 0, sizeof(struct zuc_session));
 358                         memset(ops[i]->sym->session, 0,
 359                                         rte_cryptodev_get_header_session_size());
 360                         rte_mempool_put(qp->sess_mp, session);
 361                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 362                         ops[i]->sym->session = NULL;
 363                 }
 364         }
 365
 366         enqueued_ops = rte_ring_enqueue_burst(qp->processed_ops,
 367                         (void **)ops, processed_ops, NULL);
 368         qp->qp_stats.enqueued_count += enqueued_ops;
 369         *accumulated_enqueued_ops += enqueued_ops;
 370
 371         return enqueued_ops;
 372 }
 373
 374 static uint16_t
 375 zuc_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 376                 uint16_t nb_ops)
 377 {
 378         struct rte_crypto_op *c_ops[ZUC_MAX_BURST];
 379         struct rte_crypto_op *curr_c_op;
 380
 381         struct zuc_session *prev_sess = NULL, *curr_sess = NULL;
 382         struct zuc_qp *qp = queue_pair;
 383         unsigned i;
 384         uint8_t burst_size = 0;
 385         uint16_t enqueued_ops = 0;
 386         uint8_t processed_ops;
 387
 388         for (i = 0; i < nb_ops; i++) {
 389                 curr_c_op = ops[i];
 390
 391                 /* Set status as enqueued (not processed yet) by default. */
 392                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 393
 394                 curr_sess = zuc_get_session(qp, curr_c_op);
 395                 if (unlikely(curr_sess == NULL ||
 396                                 curr_sess->op == ZUC_OP_NOT_SUPPORTED)) {
 397                         curr_c_op->status =
 398                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 399                         break;
 400                 }
 401
 402                 /* Batch ops that share the same session. */
 403                 if (prev_sess == NULL) {
 404                         prev_sess = curr_sess;
 405                         c_ops[burst_size++] = curr_c_op;
 406                 } else if (curr_sess == prev_sess) {
 407                         c_ops[burst_size++] = curr_c_op;
 408                         /*
 409                          * When there are enough ops to process in a batch,
 410                          * process them, and start a new batch.
 411                          */
 412                         if (burst_size == ZUC_MAX_BURST) {
 413                                 processed_ops = process_ops(c_ops, prev_sess,
 414                                                 qp, burst_size, &enqueued_ops);
 415                                 if (processed_ops < burst_size) {
 416                                         burst_size = 0;
 417                                         break;
 418                                 }
 419
 420                                 burst_size = 0;
 421                                 prev_sess = NULL;
 422                         }
 423                 } else {
 424                         /*
 425                          * Different session, process the ops
 426                          * of the previous session.
 427                          */
 428                         processed_ops = process_ops(c_ops, prev_sess,
 429                                         qp, burst_size, &enqueued_ops);
 430                         if (processed_ops < burst_size) {
 431                                 burst_size = 0;
 432                                 break;
 433                         }
 434
 435                         burst_size = 0;
 436                         prev_sess = curr_sess;
 437
 438                         c_ops[burst_size++] = curr_c_op;
 439                 }
 440         }
 441
 442         if (burst_size != 0) {
 443                 /* Process the crypto ops of the last session. */
 444                 processed_ops = process_ops(c_ops, prev_sess,
 445                                 qp, burst_size, &enqueued_ops);
 446         }
 447
 448         qp->qp_stats.enqueue_err_count += nb_ops - enqueued_ops;
 449         return enqueued_ops;
 450 }
 451
 452 static uint16_t
 453 zuc_pmd_dequeue_burst(void *queue_pair,
 454                 struct rte_crypto_op **c_ops, uint16_t nb_ops)
 455 {
 456         struct zuc_qp *qp = queue_pair;
 457
 458         unsigned nb_dequeued;
 459
 460         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 461                         (void **)c_ops, nb_ops, NULL);
 462         qp->qp_stats.dequeued_count += nb_dequeued;
 463
 464         return nb_dequeued;
 465 }
 466
 467 static int cryptodev_zuc_remove(struct rte_vdev_device *vdev);
 468
 469 static int
 470 cryptodev_zuc_create(const char *name,
 471                 struct rte_vdev_device *vdev,
 472                 struct rte_crypto_vdev_init_params *init_params)
 473 {
 474         struct rte_cryptodev *dev;
 475         struct zuc_private *internals;
 476         uint64_t cpu_flags = RTE_CRYPTODEV_FF_CPU_SSE;
 477
 478         if (init_params->name[0] == '\0')
 479                 snprintf(init_params->name, sizeof(init_params->name),
 480                                 "%s", name);
 481
 482         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
 483                         sizeof(struct zuc_private), init_params->socket_id,
 484                         vdev);
 485         if (dev == NULL) {
 486                 ZUC_LOG_ERR("failed to create cryptodev vdev");
 487                 goto init_error;
 488         }
 489
 490         dev->driver_id = cryptodev_driver_id;
 491         dev->dev_ops = rte_zuc_pmd_ops;
 492
 493         /* Register RX/TX burst functions for data path. */
 494         dev->dequeue_burst = zuc_pmd_dequeue_burst;
 495         dev->enqueue_burst = zuc_pmd_enqueue_burst;
 496
 497         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 498                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 499                         cpu_flags;
 500
 501         internals = dev->data->dev_private;
 502
 503         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 504         internals->max_nb_sessions = init_params->max_nb_sessions;
 505
 506         return 0;
 507 init_error:
 508         ZUC_LOG_ERR("driver %s: cryptodev_zuc_create failed",
 509                         init_params->name);
 510
 511         cryptodev_zuc_remove(vdev);
 512         return -EFAULT;
 513 }
 514
 515 static int
 516 cryptodev_zuc_probe(struct rte_vdev_device *vdev)
 517 {
 518         struct rte_crypto_vdev_init_params init_params = {
 519                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 520                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 521                 rte_socket_id(),
 522                 {0}
 523         };
 524         const char *name;
 525         const char *input_args;
 526
 527         name = rte_vdev_device_name(vdev);
 528         if (name == NULL)
 529                 return -EINVAL;
 530         input_args = rte_vdev_device_args(vdev);
 531
 532         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
 533
 534         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 535                         init_params.socket_id);
 536         if (init_params.name[0] != '\0')
 537                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 538                         init_params.name);
 539         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 540                         init_params.max_nb_queue_pairs);
 541         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 542                         init_params.max_nb_sessions);
 543
 544         return cryptodev_zuc_create(name, vdev, &init_params);
 545 }
 546
 547 static int
 548 cryptodev_zuc_remove(struct rte_vdev_device *vdev)
 549 {
 550         const char *name;
 551
 552         name = rte_vdev_device_name(vdev);
 553         if (name == NULL)
 554                 return -EINVAL;
 555
 556         RTE_LOG(INFO, PMD, "Closing ZUC crypto device %s"
 557                         " on numa socket %u\n",
 558                         name, rte_socket_id());
 559
 560         return 0;
 561 }
 562
 563 static struct rte_vdev_driver cryptodev_zuc_pmd_drv = {
 564         .probe = cryptodev_zuc_probe,
 565         .remove = cryptodev_zuc_remove
 566 };
 567
 568 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_ZUC_PMD, cryptodev_zuc_pmd_drv);
 569 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_ZUC_PMD,
 570         "max_nb_queue_pairs=<int> "
 571         "max_nb_sessions=<int> "
 572         "socket_id=<int>");
 573 RTE_PMD_REGISTER_CRYPTO_DRIVER(cryptodev_zuc_pmd_drv, cryptodev_driver_id);