drivers/crypto/aesni_gcm/aesni_gcm_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 #include <rte_byteorder.h>
  43
  44 #include "aesni_gcm_pmd_private.h"
  45
  46 static uint8_t cryptodev_driver_id;
  47
  48 /** Parse crypto xform chain and set private session parameters */
  49 int
  50 aesni_gcm_set_session_parameters(const struct aesni_gcm_ops *gcm_ops,
  51                 struct aesni_gcm_session *sess,
  52                 const struct rte_crypto_sym_xform *xform)
  53 {
  54         const struct rte_crypto_sym_xform *auth_xform;
  55         const struct rte_crypto_sym_xform *aead_xform;
  56         uint16_t digest_length;
  57         uint8_t key_length;
  58         uint8_t *key;
  59
  60         /* AES-GMAC */
  61         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  62                 auth_xform = xform;
  63                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_AES_GMAC) {
  64                         GCM_LOG_ERR("Only AES GMAC is supported as an "
  65                                         "authentication only algorithm");
  66                         return -EINVAL;
  67                 }
  68                 /* Set IV parameters */
  69                 sess->iv.offset = auth_xform->auth.iv.offset;
  70                 sess->iv.length = auth_xform->auth.iv.length;
  71
  72                 /* Select Crypto operation */
  73                 if (auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE)
  74                         sess->op = AESNI_GMAC_OP_GENERATE;
  75                 else
  76                         sess->op = AESNI_GMAC_OP_VERIFY;
  77
  78                 key_length = auth_xform->auth.key.length;
  79                 key = auth_xform->auth.key.data;
  80                 digest_length = auth_xform->auth.digest_length;
  81
  82         /* AES-GCM */
  83         } else if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
  84                 aead_xform = xform;
  85
  86                 if (aead_xform->aead.algo != RTE_CRYPTO_AEAD_AES_GCM) {
  87                         GCM_LOG_ERR("The only combined operation "
  88                                                 "supported is AES GCM");
  89                         return -EINVAL;
  90                 }
  91
  92                 /* Set IV parameters */
  93                 sess->iv.offset = aead_xform->aead.iv.offset;
  94                 sess->iv.length = aead_xform->aead.iv.length;
  95
  96                 /* Select Crypto operation */
  97                 if (aead_xform->aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT)
  98                         sess->op = AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION;
  99                 else
 100                         sess->op = AESNI_GCM_OP_AUTHENTICATED_DECRYPTION;
 101
 102                 key_length = aead_xform->aead.key.length;
 103                 key = aead_xform->aead.key.data;
 104
 105                 sess->aad_length = aead_xform->aead.add_auth_data_length;
 106                 digest_length = aead_xform->aead.digest_length;
 107         } else {
 108                 GCM_LOG_ERR("Wrong xform type, has to be AEAD or authentication");
 109                 return -EINVAL;
 110         }
 111
 112
 113         /* IV check */
 114         if (sess->iv.length != 16 && sess->iv.length != 12 &&
 115                         sess->iv.length != 0) {
 116                 GCM_LOG_ERR("Wrong IV length");
 117                 return -EINVAL;
 118         }
 119
 120         /* Check key length and calculate GCM pre-compute. */
 121         switch (key_length) {
 122         case 16:
 123                 sess->key = AESNI_GCM_KEY_128;
 124                 break;
 125         case 24:
 126                 sess->key = AESNI_GCM_KEY_192;
 127                 break;
 128         case 32:
 129                 sess->key = AESNI_GCM_KEY_256;
 130                 break;
 131         default:
 132                 GCM_LOG_ERR("Unsupported key length");
 133                 return -EINVAL;
 134         }
 135
 136         gcm_ops[sess->key].precomp(key, &sess->gdata_key);
 137
 138         /* Digest check */
 139         if (digest_length != 16 &&
 140                         digest_length != 12 &&
 141                         digest_length != 8) {
 142                 GCM_LOG_ERR("digest");
 143                 return -EINVAL;
 144         }
 145         sess->digest_length = digest_length;
 146
 147         return 0;
 148 }
 149
 150 /** Get gcm session */
 151 static struct aesni_gcm_session *
 152 aesni_gcm_get_session(struct aesni_gcm_qp *qp, struct rte_crypto_op *op)
 153 {
 154         struct aesni_gcm_session *sess = NULL;
 155         struct rte_crypto_sym_op *sym_op = op->sym;
 156
 157         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 158                 if (unlikely(sym_op->session->driver_id !=
 159                                 cryptodev_driver_id))
 160                         return sess;
 161
 162                 sess = (struct aesni_gcm_session *)sym_op->session->_private;
 163         } else  {
 164                 void *_sess;
 165
 166                 if (rte_mempool_get(qp->sess_mp, &_sess))
 167                         return sess;
 168
 169                 sess = (struct aesni_gcm_session *)
 170                         ((struct rte_cryptodev_sym_session *)_sess)->_private;
 171
 172                 if (unlikely(aesni_gcm_set_session_parameters(qp->ops, sess,
 173                                 sym_op->xform) != 0)) {
 174                         rte_mempool_put(qp->sess_mp, _sess);
 175                         sess = NULL;
 176                 }
 177         }
 178         return sess;
 179 }
 180
 181 /**
 182  * Process a crypto operation, calling
 183  * the GCM API from the multi buffer library.
 184  *
 185  * @param       qp              queue pair
 186  * @param       op              symmetric crypto operation
 187  * @param       session         GCM session
 188  *
 189  * @return
 190  *
 191  */
 192 static int
 193 process_gcm_crypto_op(struct aesni_gcm_qp *qp, struct rte_crypto_op *op,
 194                 struct aesni_gcm_session *session)
 195 {
 196         uint8_t *src, *dst;
 197         uint8_t *iv_ptr;
 198         struct rte_crypto_sym_op *sym_op = op->sym;
 199         struct rte_mbuf *m_src = sym_op->m_src;
 200         uint32_t offset, data_offset, data_length;
 201         uint32_t part_len, total_len, data_len;
 202
 203         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION ||
 204                         session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION) {
 205                 offset = sym_op->aead.data.offset;
 206                 data_offset = offset;
 207                 data_length = sym_op->aead.data.length;
 208         } else {
 209                 offset = sym_op->auth.data.offset;
 210                 data_offset = offset;
 211                 data_length = sym_op->auth.data.length;
 212         }
 213
 214         RTE_ASSERT(m_src != NULL);
 215
 216         while (offset >= m_src->data_len) {
 217                 offset -= m_src->data_len;
 218                 m_src = m_src->next;
 219
 220                 RTE_ASSERT(m_src != NULL);
 221         }
 222
 223         data_len = m_src->data_len - offset;
 224         part_len = (data_len < data_length) ? data_len :
 225                         data_length;
 226
 227         /* Destination buffer is required when segmented source buffer */
 228         RTE_ASSERT((part_len == data_length) ||
 229                         ((part_len != data_length) &&
 230                                         (sym_op->m_dst != NULL)));
 231         /* Segmented destination buffer is not supported */
 232         RTE_ASSERT((sym_op->m_dst == NULL) ||
 233                         ((sym_op->m_dst != NULL) &&
 234                                         rte_pktmbuf_is_contiguous(sym_op->m_dst)));
 235
 236
 237         dst = sym_op->m_dst ?
 238                         rte_pktmbuf_mtod_offset(sym_op->m_dst, uint8_t *,
 239                                         data_offset) :
 240                         rte_pktmbuf_mtod_offset(sym_op->m_src, uint8_t *,
 241                                         data_offset);
 242
 243         src = rte_pktmbuf_mtod_offset(m_src, uint8_t *, offset);
 244
 245         iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
 246                                 session->iv.offset);
 247         /*
 248          * GCM working in 12B IV mode => 16B pre-counter block we need
 249          * to set BE LSB to 1, driver expects that 16B is allocated
 250          */
 251         if (session->iv.length == 12) {
 252                 uint32_t *iv_padd = (uint32_t *)&(iv_ptr[12]);
 253                 *iv_padd = rte_bswap32(1);
 254         }
 255
 256         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION) {
 257
 258                 qp->ops[session->key].init(&session->gdata_key,
 259                                 &qp->gdata_ctx,
 260                                 iv_ptr,
 261                                 sym_op->aead.aad.data,
 262                                 (uint64_t)session->aad_length);
 263
 264                 qp->ops[session->key].update_enc(&session->gdata_key,
 265                                 &qp->gdata_ctx, dst, src,
 266                                 (uint64_t)part_len);
 267                 total_len = data_length - part_len;
 268
 269                 while (total_len) {
 270                         dst += part_len;
 271                         m_src = m_src->next;
 272
 273                         RTE_ASSERT(m_src != NULL);
 274
 275                         src = rte_pktmbuf_mtod(m_src, uint8_t *);
 276                         part_len = (m_src->data_len < total_len) ?
 277                                         m_src->data_len : total_len;
 278
 279                         qp->ops[session->key].update_enc(&session->gdata_key,
 280                                         &qp->gdata_ctx, dst, src,
 281                                         (uint64_t)part_len);
 282                         total_len -= part_len;
 283                 }
 284
 285                 qp->ops[session->key].finalize(&session->gdata_key,
 286                                 &qp->gdata_ctx,
 287                                 sym_op->aead.digest.data,
 288                                 (uint64_t)session->digest_length);
 289         } else if (session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION) {
 290                 uint8_t *auth_tag = (uint8_t *)rte_pktmbuf_append(sym_op->m_dst ?
 291                                 sym_op->m_dst : sym_op->m_src,
 292                                 session->digest_length);
 293
 294                 if (!auth_tag) {
 295                         GCM_LOG_ERR("auth_tag");
 296                         return -1;
 297                 }
 298
 299                 qp->ops[session->key].init(&session->gdata_key,
 300                                 &qp->gdata_ctx,
 301                                 iv_ptr,
 302                                 sym_op->aead.aad.data,
 303                                 (uint64_t)session->aad_length);
 304
 305                 qp->ops[session->key].update_dec(&session->gdata_key,
 306                                 &qp->gdata_ctx, dst, src,
 307                                 (uint64_t)part_len);
 308                 total_len = data_length - part_len;
 309
 310                 while (total_len) {
 311                         dst += part_len;
 312                         m_src = m_src->next;
 313
 314                         RTE_ASSERT(m_src != NULL);
 315
 316                         src = rte_pktmbuf_mtod(m_src, uint8_t *);
 317                         part_len = (m_src->data_len < total_len) ?
 318                                         m_src->data_len : total_len;
 319
 320                         qp->ops[session->key].update_dec(&session->gdata_key,
 321                                         &qp->gdata_ctx,
 322                                         dst, src,
 323                                         (uint64_t)part_len);
 324                         total_len -= part_len;
 325                 }
 326
 327                 qp->ops[session->key].finalize(&session->gdata_key,
 328                                 &qp->gdata_ctx,
 329                                 auth_tag,
 330                                 (uint64_t)session->digest_length);
 331         } else if (session->op == AESNI_GMAC_OP_GENERATE) {
 332                 qp->ops[session->key].init(&session->gdata_key,
 333                                 &qp->gdata_ctx,
 334                                 iv_ptr,
 335                                 src,
 336                                 (uint64_t)data_length);
 337                 qp->ops[session->key].finalize(&session->gdata_key,
 338                                 &qp->gdata_ctx,
 339                                 sym_op->auth.digest.data,
 340                                 (uint64_t)session->digest_length);
 341         } else { /* AESNI_GMAC_OP_VERIFY */
 342                 uint8_t *auth_tag = (uint8_t *)rte_pktmbuf_append(sym_op->m_dst ?
 343                                 sym_op->m_dst : sym_op->m_src,
 344                                 session->digest_length);
 345
 346                 if (!auth_tag) {
 347                         GCM_LOG_ERR("auth_tag");
 348                         return -1;
 349                 }
 350
 351                 qp->ops[session->key].init(&session->gdata_key,
 352                                 &qp->gdata_ctx,
 353                                 iv_ptr,
 354                                 src,
 355                                 (uint64_t)data_length);
 356
 357                 qp->ops[session->key].finalize(&session->gdata_key,
 358                                 &qp->gdata_ctx,
 359                                 auth_tag,
 360                                 (uint64_t)session->digest_length);
 361         }
 362
 363         return 0;
 364 }
 365
 366 /**
 367  * Process a completed job and return rte_mbuf which job processed
 368  *
 369  * @param job   JOB_AES_HMAC job to process
 370  *
 371  * @return
 372  * - Returns processed mbuf which is trimmed of output digest used in
 373  * verification of supplied digest in the case of a HASH_CIPHER operation
 374  * - Returns NULL on invalid job
 375  */
 376 static void
 377 post_process_gcm_crypto_op(struct rte_crypto_op *op)
 378 {
 379         struct rte_mbuf *m = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
 380
 381         struct aesni_gcm_session *session =
 382                 (struct aesni_gcm_session *)op->sym->session->_private;
 383
 384         op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 385
 386         /* Verify digest if required */
 387         if (session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION ||
 388                         session->op == AESNI_GMAC_OP_VERIFY) {
 389                 uint8_t *digest;
 390
 391                 uint8_t *tag = rte_pktmbuf_mtod_offset(m, uint8_t *,
 392                                 m->data_len - session->digest_length);
 393
 394                 if (session->op == AESNI_GMAC_OP_VERIFY)
 395                         digest = op->sym->auth.digest.data;
 396                 else
 397                         digest = op->sym->aead.digest.data;
 398
 399 #ifdef RTE_LIBRTE_PMD_AESNI_GCM_DEBUG
 400                 rte_hexdump(stdout, "auth tag (orig):",
 401                                 digest, session->digest_length);
 402                 rte_hexdump(stdout, "auth tag (calc):",
 403                                 tag, session->digest_length);
 404 #endif
 405
 406                 if (memcmp(tag, digest, session->digest_length) != 0)
 407                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 408
 409                 /* trim area used for digest from mbuf */
 410                 rte_pktmbuf_trim(m, session->digest_length);
 411         }
 412 }
 413
 414 /**
 415  * Process a completed GCM request
 416  *
 417  * @param qp            Queue Pair to process
 418  * @param job           JOB_AES_HMAC job
 419  *
 420  * @return
 421  * - Number of processed jobs
 422  */
 423 static void
 424 handle_completed_gcm_crypto_op(struct aesni_gcm_qp *qp,
 425                 struct rte_crypto_op *op)
 426 {
 427         post_process_gcm_crypto_op(op);
 428
 429         /* Free session if a session-less crypto op */
 430         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 431                 rte_mempool_put(qp->sess_mp, op->sym->session);
 432                 op->sym->session = NULL;
 433         }
 434 }
 435
 436 static uint16_t
 437 aesni_gcm_pmd_dequeue_burst(void *queue_pair,
 438                 struct rte_crypto_op **ops, uint16_t nb_ops)
 439 {
 440         struct aesni_gcm_session *sess;
 441         struct aesni_gcm_qp *qp = queue_pair;
 442
 443         int retval = 0;
 444         unsigned int i, nb_dequeued;
 445
 446         nb_dequeued = rte_ring_dequeue_burst(qp->processed_pkts,
 447                         (void **)ops, nb_ops, NULL);
 448
 449         for (i = 0; i < nb_dequeued; i++) {
 450
 451                 sess = aesni_gcm_get_session(qp, ops[i]);
 452                 if (unlikely(sess == NULL)) {
 453                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 454                         qp->qp_stats.dequeue_err_count++;
 455                         break;
 456                 }
 457
 458                 retval = process_gcm_crypto_op(qp, ops[i], sess);
 459                 if (retval < 0) {
 460                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 461                         qp->qp_stats.dequeue_err_count++;
 462                         break;
 463                 }
 464
 465                 handle_completed_gcm_crypto_op(qp, ops[i]);
 466         }
 467
 468         qp->qp_stats.dequeued_count += i;
 469
 470         return i;
 471 }
 472
 473 static uint16_t
 474 aesni_gcm_pmd_enqueue_burst(void *queue_pair,
 475                 struct rte_crypto_op **ops, uint16_t nb_ops)
 476 {
 477         struct aesni_gcm_qp *qp = queue_pair;
 478
 479         unsigned int nb_enqueued;
 480
 481         nb_enqueued = rte_ring_enqueue_burst(qp->processed_pkts,
 482                         (void **)ops, nb_ops, NULL);
 483         qp->qp_stats.enqueued_count += nb_enqueued;
 484
 485         return nb_enqueued;
 486 }
 487
 488 static int aesni_gcm_remove(struct rte_vdev_device *vdev);
 489
 490 static int
 491 aesni_gcm_create(const char *name,
 492                 struct rte_vdev_device *vdev,
 493                 struct rte_crypto_vdev_init_params *init_params)
 494 {
 495         struct rte_cryptodev *dev;
 496         struct aesni_gcm_private *internals;
 497         enum aesni_gcm_vector_mode vector_mode;
 498
 499         if (init_params->name[0] == '\0')
 500                 snprintf(init_params->name, sizeof(init_params->name),
 501                                 "%s", name);
 502
 503         /* Check CPU for support for AES instruction set */
 504         if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_AES)) {
 505                 GCM_LOG_ERR("AES instructions not supported by CPU");
 506                 return -EFAULT;
 507         }
 508
 509         /* Check CPU for supported vector instruction set */
 510         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
 511                 vector_mode = RTE_AESNI_GCM_AVX2;
 512         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 513                 vector_mode = RTE_AESNI_GCM_AVX;
 514         else
 515                 vector_mode = RTE_AESNI_GCM_SSE;
 516
 517         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
 518                         sizeof(struct aesni_gcm_private), init_params->socket_id,
 519                         vdev);
 520         if (dev == NULL) {
 521                 GCM_LOG_ERR("failed to create cryptodev vdev");
 522                 goto init_error;
 523         }
 524
 525         dev->driver_id = cryptodev_driver_id;
 526         dev->dev_ops = rte_aesni_gcm_pmd_ops;
 527
 528         /* register rx/tx burst functions for data path */
 529         dev->dequeue_burst = aesni_gcm_pmd_dequeue_burst;
 530         dev->enqueue_burst = aesni_gcm_pmd_enqueue_burst;
 531
 532         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 533                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 534                         RTE_CRYPTODEV_FF_CPU_AESNI |
 535                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
 536
 537         switch (vector_mode) {
 538         case RTE_AESNI_GCM_SSE:
 539                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 540                 break;
 541         case RTE_AESNI_GCM_AVX:
 542                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
 543                 break;
 544         case RTE_AESNI_GCM_AVX2:
 545                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
 546                 break;
 547         default:
 548                 break;
 549         }
 550
 551         internals = dev->data->dev_private;
 552
 553         internals->vector_mode = vector_mode;
 554
 555         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 556         internals->max_nb_sessions = init_params->max_nb_sessions;
 557
 558         return 0;
 559
 560 init_error:
 561         GCM_LOG_ERR("driver %s: create failed", init_params->name);
 562
 563         aesni_gcm_remove(vdev);
 564         return -EFAULT;
 565 }
 566
 567 static int
 568 aesni_gcm_probe(struct rte_vdev_device *vdev)
 569 {
 570         struct rte_crypto_vdev_init_params init_params = {
 571                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 572                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 573                 rte_socket_id(),
 574                 {0}
 575         };
 576         const char *name;
 577         const char *input_args;
 578
 579         name = rte_vdev_device_name(vdev);
 580         if (name == NULL)
 581                 return -EINVAL;
 582         input_args = rte_vdev_device_args(vdev);
 583         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
 584
 585         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 586                         init_params.socket_id);
 587         if (init_params.name[0] != '\0')
 588                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 589                         init_params.name);
 590         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 591                         init_params.max_nb_queue_pairs);
 592         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 593                         init_params.max_nb_sessions);
 594
 595         return aesni_gcm_create(name, vdev, &init_params);
 596 }
 597
 598 static int
 599 aesni_gcm_remove(struct rte_vdev_device *vdev)
 600 {
 601         const char *name;
 602
 603         name = rte_vdev_device_name(vdev);
 604         if (name == NULL)
 605                 return -EINVAL;
 606
 607         GCM_LOG_INFO("Closing AESNI crypto device %s on numa socket %u\n",
 608                         name, rte_socket_id());
 609
 610         return 0;
 611 }
 612
 613 static struct rte_vdev_driver aesni_gcm_pmd_drv = {
 614         .probe = aesni_gcm_probe,
 615         .remove = aesni_gcm_remove
 616 };
 617
 618 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_GCM_PMD, aesni_gcm_pmd_drv);
 619 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_GCM_PMD, cryptodev_aesni_gcm_pmd);
 620 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_GCM_PMD,
 621         "max_nb_queue_pairs=<int> "
 622         "max_nb_sessions=<int> "
 623         "socket_id=<int>");
 624 RTE_PMD_REGISTER_CRYPTO_DRIVER(aesni_gcm_pmd_drv, cryptodev_driver_id);