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 /** GCM encode functions pointer table */
  47 static const struct aesni_gcm_ops aesni_gcm_enc[] = {
  48                 [AESNI_GCM_KEY_128] = {
  49                                 aesni_gcm128_init,
  50                                 aesni_gcm128_enc_update,
  51                                 aesni_gcm128_enc_finalize
  52                 },
  53                 [AESNI_GCM_KEY_256] = {
  54                                 aesni_gcm256_init,
  55                                 aesni_gcm256_enc_update,
  56                                 aesni_gcm256_enc_finalize
  57                 }
  58 };
  59
  60 /** GCM decode functions pointer table */
  61 static const struct aesni_gcm_ops aesni_gcm_dec[] = {
  62                 [AESNI_GCM_KEY_128] = {
  63                                 aesni_gcm128_init,
  64                                 aesni_gcm128_dec_update,
  65                                 aesni_gcm128_dec_finalize
  66                 },
  67                 [AESNI_GCM_KEY_256] = {
  68                                 aesni_gcm256_init,
  69                                 aesni_gcm256_dec_update,
  70                                 aesni_gcm256_dec_finalize
  71                 }
  72 };
  73
  74 /** Parse crypto xform chain and set private session parameters */
  75 int
  76 aesni_gcm_set_session_parameters(struct aesni_gcm_session *sess,
  77                 const struct rte_crypto_sym_xform *xform)
  78 {
  79         const struct rte_crypto_sym_xform *auth_xform;
  80         const struct rte_crypto_sym_xform *cipher_xform;
  81         uint16_t digest_length;
  82         uint8_t key_length;
  83         uint8_t *key;
  84
  85         /* AES-GMAC */
  86         if (xform->next == NULL) {
  87                 auth_xform = xform;
  88                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_AES_GMAC) {
  89                         GCM_LOG_ERR("Only AES GMAC is supported as an "
  90                                         "authentication only algorithm");
  91                         return -EINVAL;
  92                 }
  93                 /* Set IV parameters */
  94                 sess->iv.offset = auth_xform->auth.iv.offset;
  95                 sess->iv.length = auth_xform->auth.iv.length;
  96
  97                 /* Select Crypto operation */
  98                 if (auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE)
  99                         sess->op = AESNI_GMAC_OP_GENERATE;
 100                 else
 101                         sess->op = AESNI_GMAC_OP_VERIFY;
 102
 103                 key_length = auth_xform->auth.key.length;
 104                 key = auth_xform->auth.key.data;
 105         /* AES-GCM */
 106         } else {
 107                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 108                                 xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
 109                         auth_xform = xform->next;
 110                         cipher_xform = xform;
 111                 } else if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 112                                 xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
 113                         auth_xform = xform;
 114                         cipher_xform = xform->next;
 115                 } else {
 116                         GCM_LOG_ERR("Cipher and auth xform required "
 117                                         "when using AES GCM");
 118                         return -EINVAL;
 119                 }
 120
 121                 if (!(cipher_xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_GCM &&
 122                                 (auth_xform->auth.algo == RTE_CRYPTO_AUTH_AES_GCM))) {
 123                         GCM_LOG_ERR("The only combined operation "
 124                                                 "supported is AES GCM");
 125                         return -EINVAL;
 126                 }
 127
 128                 /* Set IV parameters */
 129                 sess->iv.offset = cipher_xform->cipher.iv.offset;
 130                 sess->iv.length = cipher_xform->cipher.iv.length;
 131
 132                 /* Select Crypto operation */
 133                 if (cipher_xform->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT &&
 134                                 auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE)
 135                         sess->op = AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION;
 136                 else if (cipher_xform->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT &&
 137                                 auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_VERIFY)
 138                         sess->op = AESNI_GCM_OP_AUTHENTICATED_DECRYPTION;
 139                 else {
 140                         GCM_LOG_ERR("Cipher/Auth operations: Encrypt/Generate or"
 141                                         " Decrypt/Verify are valid only");
 142                         return -EINVAL;
 143                 }
 144
 145                 key_length = cipher_xform->auth.key.length;
 146                 key = cipher_xform->auth.key.data;
 147
 148                 sess->aad_length = auth_xform->auth.add_auth_data_length;
 149         }
 150
 151         /* IV check */
 152         if (sess->iv.length != 16 && sess->iv.length != 12 &&
 153                         sess->iv.length != 0) {
 154                 GCM_LOG_ERR("Wrong IV length");
 155                 return -EINVAL;
 156         }
 157
 158         digest_length = auth_xform->auth.digest_length;
 159
 160         /* Check key length and calculate GCM pre-compute. */
 161         switch (key_length) {
 162         case 16:
 163                 aesni_gcm128_pre(key, &sess->gdata);
 164                 sess->key = AESNI_GCM_KEY_128;
 165
 166                 break;
 167         case 32:
 168                 aesni_gcm256_pre(key, &sess->gdata);
 169                 sess->key = AESNI_GCM_KEY_256;
 170
 171                 break;
 172         default:
 173                 GCM_LOG_ERR("Unsupported cipher/auth key length");
 174                 return -EINVAL;
 175         }
 176
 177         /* Digest check */
 178         if (digest_length != 16 &&
 179                         digest_length != 12 &&
 180                         digest_length != 8) {
 181                 GCM_LOG_ERR("digest");
 182                 return -EINVAL;
 183         }
 184         sess->digest_length = digest_length;
 185
 186         return 0;
 187 }
 188
 189 /** Get gcm session */
 190 static struct aesni_gcm_session *
 191 aesni_gcm_get_session(struct aesni_gcm_qp *qp, struct rte_crypto_op *op)
 192 {
 193         struct aesni_gcm_session *sess = NULL;
 194         struct rte_crypto_sym_op *sym_op = op->sym;
 195
 196         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 197                 if (unlikely(sym_op->session->dev_type
 198                                         != RTE_CRYPTODEV_AESNI_GCM_PMD))
 199                         return sess;
 200
 201                 sess = (struct aesni_gcm_session *)sym_op->session->_private;
 202         } else  {
 203                 void *_sess;
 204
 205                 if (rte_mempool_get(qp->sess_mp, &_sess))
 206                         return sess;
 207
 208                 sess = (struct aesni_gcm_session *)
 209                         ((struct rte_cryptodev_sym_session *)_sess)->_private;
 210
 211                 if (unlikely(aesni_gcm_set_session_parameters(sess,
 212                                 sym_op->xform) != 0)) {
 213                         rte_mempool_put(qp->sess_mp, _sess);
 214                         sess = NULL;
 215                 }
 216         }
 217         return sess;
 218 }
 219
 220 /**
 221  * Process a crypto operation and complete a JOB_AES_HMAC job structure for
 222  * submission to the multi buffer library for processing.
 223  *
 224  * @param       qp              queue pair
 225  * @param       op              symmetric crypto operation
 226  * @param       session         GCM session
 227  *
 228  * @return
 229  *
 230  */
 231 static int
 232 process_gcm_crypto_op(struct rte_crypto_op *op,
 233                 struct aesni_gcm_session *session)
 234 {
 235         uint8_t *src, *dst;
 236         uint8_t *iv_ptr;
 237         struct rte_crypto_sym_op *sym_op = op->sym;
 238         struct rte_mbuf *m_src = sym_op->m_src;
 239         uint32_t offset, data_offset, data_length;
 240         uint32_t part_len, total_len, data_len;
 241
 242         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION ||
 243                         session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION) {
 244                 offset = sym_op->cipher.data.offset;
 245                 data_offset = offset;
 246                 data_length = sym_op->cipher.data.length;
 247         } else {
 248                 offset = sym_op->auth.data.offset;
 249                 data_offset = offset;
 250                 data_length = sym_op->auth.data.length;
 251         }
 252
 253         RTE_ASSERT(m_src != NULL);
 254
 255         while (offset >= m_src->data_len) {
 256                 offset -= m_src->data_len;
 257                 m_src = m_src->next;
 258
 259                 RTE_ASSERT(m_src != NULL);
 260         }
 261
 262         data_len = m_src->data_len - offset;
 263         part_len = (data_len < data_length) ? data_len :
 264                         data_length;
 265
 266         /* Destination buffer is required when segmented source buffer */
 267         RTE_ASSERT((part_len == data_length) ||
 268                         ((part_len != data_length) &&
 269                                         (sym_op->m_dst != NULL)));
 270         /* Segmented destination buffer is not supported */
 271         RTE_ASSERT((sym_op->m_dst == NULL) ||
 272                         ((sym_op->m_dst != NULL) &&
 273                                         rte_pktmbuf_is_contiguous(sym_op->m_dst)));
 274
 275
 276         dst = sym_op->m_dst ?
 277                         rte_pktmbuf_mtod_offset(sym_op->m_dst, uint8_t *,
 278                                         data_offset) :
 279                         rte_pktmbuf_mtod_offset(sym_op->m_src, uint8_t *,
 280                                         data_offset);
 281
 282         src = rte_pktmbuf_mtod_offset(m_src, uint8_t *, offset);
 283
 284         iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
 285                                 session->iv.offset);
 286         /*
 287          * GCM working in 12B IV mode => 16B pre-counter block we need
 288          * to set BE LSB to 1, driver expects that 16B is allocated
 289          */
 290         if (session->iv.length == 12) {
 291                 uint32_t *iv_padd = (uint32_t *)&(iv_ptr[12]);
 292                 *iv_padd = rte_bswap32(1);
 293         }
 294
 295         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION) {
 296
 297                 aesni_gcm_enc[session->key].init(&session->gdata,
 298                                 iv_ptr,
 299                                 sym_op->auth.aad.data,
 300                                 (uint64_t)session->aad_length);
 301
 302                 aesni_gcm_enc[session->key].update(&session->gdata, dst, src,
 303                                 (uint64_t)part_len);
 304                 total_len = data_length - part_len;
 305
 306                 while (total_len) {
 307                         dst += part_len;
 308                         m_src = m_src->next;
 309
 310                         RTE_ASSERT(m_src != NULL);
 311
 312                         src = rte_pktmbuf_mtod(m_src, uint8_t *);
 313                         part_len = (m_src->data_len < total_len) ?
 314                                         m_src->data_len : total_len;
 315
 316                         aesni_gcm_enc[session->key].update(&session->gdata,
 317                                         dst, src,
 318                                         (uint64_t)part_len);
 319                         total_len -= part_len;
 320                 }
 321
 322                 aesni_gcm_enc[session->key].finalize(&session->gdata,
 323                                 sym_op->auth.digest.data,
 324                                 (uint64_t)session->digest_length);
 325         } else if (session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION) {
 326                 uint8_t *auth_tag = (uint8_t *)rte_pktmbuf_append(sym_op->m_dst ?
 327                                 sym_op->m_dst : sym_op->m_src,
 328                                 session->digest_length);
 329
 330                 if (!auth_tag) {
 331                         GCM_LOG_ERR("auth_tag");
 332                         return -1;
 333                 }
 334
 335                 aesni_gcm_dec[session->key].init(&session->gdata,
 336                                 iv_ptr,
 337                                 sym_op->auth.aad.data,
 338                                 (uint64_t)session->aad_length);
 339
 340                 aesni_gcm_dec[session->key].update(&session->gdata, dst, src,
 341                                 (uint64_t)part_len);
 342                 total_len = data_length - part_len;
 343
 344                 while (total_len) {
 345                         dst += part_len;
 346                         m_src = m_src->next;
 347
 348                         RTE_ASSERT(m_src != NULL);
 349
 350                         src = rte_pktmbuf_mtod(m_src, uint8_t *);
 351                         part_len = (m_src->data_len < total_len) ?
 352                                         m_src->data_len : total_len;
 353
 354                         aesni_gcm_dec[session->key].update(&session->gdata,
 355                                         dst, src,
 356                                         (uint64_t)part_len);
 357                         total_len -= part_len;
 358                 }
 359
 360                 aesni_gcm_dec[session->key].finalize(&session->gdata,
 361                                 auth_tag,
 362                                 (uint64_t)session->digest_length);
 363         } else if (session->op == AESNI_GMAC_OP_GENERATE) {
 364                 aesni_gcm_enc[session->key].init(&session->gdata,
 365                                 iv_ptr,
 366                                 src,
 367                                 (uint64_t)data_length);
 368                 aesni_gcm_enc[session->key].finalize(&session->gdata,
 369                                 sym_op->auth.digest.data,
 370                                 (uint64_t)session->digest_length);
 371         } else { /* AESNI_GMAC_OP_VERIFY */
 372                 uint8_t *auth_tag = (uint8_t *)rte_pktmbuf_append(sym_op->m_dst ?
 373                                 sym_op->m_dst : sym_op->m_src,
 374                                 session->digest_length);
 375
 376                 if (!auth_tag) {
 377                         GCM_LOG_ERR("auth_tag");
 378                         return -1;
 379                 }
 380
 381                 aesni_gcm_dec[session->key].init(&session->gdata,
 382                                 iv_ptr,
 383                                 src,
 384                                 (uint64_t)data_length);
 385
 386                 aesni_gcm_dec[session->key].finalize(&session->gdata,
 387                                 auth_tag,
 388                                 (uint64_t)session->digest_length);
 389         }
 390
 391         return 0;
 392 }
 393
 394 /**
 395  * Process a completed job and return rte_mbuf which job processed
 396  *
 397  * @param job   JOB_AES_HMAC job to process
 398  *
 399  * @return
 400  * - Returns processed mbuf which is trimmed of output digest used in
 401  * verification of supplied digest in the case of a HASH_CIPHER operation
 402  * - Returns NULL on invalid job
 403  */
 404 static void
 405 post_process_gcm_crypto_op(struct rte_crypto_op *op)
 406 {
 407         struct rte_mbuf *m = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
 408
 409         struct aesni_gcm_session *session =
 410                 (struct aesni_gcm_session *)op->sym->session->_private;
 411
 412         op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 413
 414         /* Verify digest if required */
 415         if (session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION ||
 416                         session->op == AESNI_GMAC_OP_VERIFY) {
 417
 418                 uint8_t *tag = rte_pktmbuf_mtod_offset(m, uint8_t *,
 419                                 m->data_len - session->digest_length);
 420
 421 #ifdef RTE_LIBRTE_PMD_AESNI_GCM_DEBUG
 422                 rte_hexdump(stdout, "auth tag (orig):",
 423                                 op->sym->auth.digest.data, session->digest_length);
 424                 rte_hexdump(stdout, "auth tag (calc):",
 425                                 tag, session->digest_length);
 426 #endif
 427
 428                 if (memcmp(tag, op->sym->auth.digest.data,
 429                                 session->digest_length) != 0)
 430                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 431
 432                 /* trim area used for digest from mbuf */
 433                 rte_pktmbuf_trim(m, session->digest_length);
 434         }
 435 }
 436
 437 /**
 438  * Process a completed GCM request
 439  *
 440  * @param qp            Queue Pair to process
 441  * @param job           JOB_AES_HMAC job
 442  *
 443  * @return
 444  * - Number of processed jobs
 445  */
 446 static void
 447 handle_completed_gcm_crypto_op(struct aesni_gcm_qp *qp,
 448                 struct rte_crypto_op *op)
 449 {
 450         post_process_gcm_crypto_op(op);
 451
 452         /* Free session if a session-less crypto op */
 453         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 454                 rte_mempool_put(qp->sess_mp, op->sym->session);
 455                 op->sym->session = NULL;
 456         }
 457 }
 458
 459 static uint16_t
 460 aesni_gcm_pmd_dequeue_burst(void *queue_pair,
 461                 struct rte_crypto_op **ops, uint16_t nb_ops)
 462 {
 463         struct aesni_gcm_session *sess;
 464         struct aesni_gcm_qp *qp = queue_pair;
 465
 466         int retval = 0;
 467         unsigned int i, nb_dequeued;
 468
 469         nb_dequeued = rte_ring_dequeue_burst(qp->processed_pkts,
 470                         (void **)ops, nb_ops, NULL);
 471
 472         for (i = 0; i < nb_dequeued; i++) {
 473
 474                 sess = aesni_gcm_get_session(qp, ops[i]);
 475                 if (unlikely(sess == NULL)) {
 476                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 477                         qp->qp_stats.dequeue_err_count++;
 478                         break;
 479                 }
 480
 481                 retval = process_gcm_crypto_op(ops[i], sess);
 482                 if (retval < 0) {
 483                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 484                         qp->qp_stats.dequeue_err_count++;
 485                         break;
 486                 }
 487
 488                 handle_completed_gcm_crypto_op(qp, ops[i]);
 489         }
 490
 491         qp->qp_stats.dequeued_count += i;
 492
 493         return i;
 494 }
 495
 496 static uint16_t
 497 aesni_gcm_pmd_enqueue_burst(void *queue_pair,
 498                 struct rte_crypto_op **ops, uint16_t nb_ops)
 499 {
 500         struct aesni_gcm_qp *qp = queue_pair;
 501
 502         unsigned int nb_enqueued;
 503
 504         nb_enqueued = rte_ring_enqueue_burst(qp->processed_pkts,
 505                         (void **)ops, nb_ops, NULL);
 506         qp->qp_stats.enqueued_count += nb_enqueued;
 507
 508         return nb_enqueued;
 509 }
 510
 511 static int aesni_gcm_remove(struct rte_vdev_device *vdev);
 512
 513 static int
 514 aesni_gcm_create(const char *name,
 515                 struct rte_vdev_device *vdev,
 516                 struct rte_crypto_vdev_init_params *init_params)
 517 {
 518         struct rte_cryptodev *dev;
 519         struct aesni_gcm_private *internals;
 520
 521         if (init_params->name[0] == '\0')
 522                 snprintf(init_params->name, sizeof(init_params->name),
 523                                 "%s", name);
 524
 525         /* Check CPU for support for AES instruction set */
 526         if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_AES)) {
 527                 GCM_LOG_ERR("AES instructions not supported by CPU");
 528                 return -EFAULT;
 529         }
 530
 531         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
 532                         sizeof(struct aesni_gcm_private), init_params->socket_id,
 533                         vdev);
 534         if (dev == NULL) {
 535                 GCM_LOG_ERR("failed to create cryptodev vdev");
 536                 goto init_error;
 537         }
 538
 539         dev->dev_type = RTE_CRYPTODEV_AESNI_GCM_PMD;
 540         dev->dev_ops = rte_aesni_gcm_pmd_ops;
 541
 542         /* register rx/tx burst functions for data path */
 543         dev->dequeue_burst = aesni_gcm_pmd_dequeue_burst;
 544         dev->enqueue_burst = aesni_gcm_pmd_enqueue_burst;
 545
 546         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 547                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 548                         RTE_CRYPTODEV_FF_CPU_AESNI |
 549                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
 550
 551         internals = dev->data->dev_private;
 552
 553         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 554         internals->max_nb_sessions = init_params->max_nb_sessions;
 555
 556         return 0;
 557
 558 init_error:
 559         GCM_LOG_ERR("driver %s: create failed", init_params->name);
 560
 561         aesni_gcm_remove(vdev);
 562         return -EFAULT;
 563 }
 564
 565 static int
 566 aesni_gcm_probe(struct rte_vdev_device *vdev)
 567 {
 568         struct rte_crypto_vdev_init_params init_params = {
 569                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 570                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 571                 rte_socket_id(),
 572                 {0}
 573         };
 574         const char *name;
 575         const char *input_args;
 576
 577         name = rte_vdev_device_name(vdev);
 578         if (name == NULL)
 579                 return -EINVAL;
 580         input_args = rte_vdev_device_args(vdev);
 581         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
 582
 583         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 584                         init_params.socket_id);
 585         if (init_params.name[0] != '\0')
 586                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 587                         init_params.name);
 588         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 589                         init_params.max_nb_queue_pairs);
 590         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 591                         init_params.max_nb_sessions);
 592
 593         return aesni_gcm_create(name, vdev, &init_params);
 594 }
 595
 596 static int
 597 aesni_gcm_remove(struct rte_vdev_device *vdev)
 598 {
 599         const char *name;
 600
 601         name = rte_vdev_device_name(vdev);
 602         if (name == NULL)
 603                 return -EINVAL;
 604
 605         GCM_LOG_INFO("Closing AESNI crypto device %s on numa socket %u\n",
 606                         name, rte_socket_id());
 607
 608         return 0;
 609 }
 610
 611 static struct rte_vdev_driver aesni_gcm_pmd_drv = {
 612         .probe = aesni_gcm_probe,
 613         .remove = aesni_gcm_remove
 614 };
 615
 616 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_GCM_PMD, aesni_gcm_pmd_drv);
 617 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_GCM_PMD, cryptodev_aesni_gcm_pmd);
 618 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_GCM_PMD,
 619         "max_nb_queue_pairs=<int> "
 620         "max_nb_sessions=<int> "
 621         "socket_id=<int>");