drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015 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_dev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_cpuflags.h>
  41 #include <rte_mbuf_offload.h>
  42
  43 #include "rte_aesni_mb_pmd_private.h"
  44
  45 /**
  46  * Global static parameter used to create a unique name for each AES-NI multi
  47  * buffer crypto device.
  48  */
  49 static unsigned unique_name_id;
  50
  51 static inline int
  52 create_unique_device_name(char *name, size_t size)
  53 {
  54         int ret;
  55
  56         if (name == NULL)
  57                 return -EINVAL;
  58
  59         ret = snprintf(name, size, "%s_%u", CRYPTODEV_NAME_AESNI_MB_PMD,
  60                         unique_name_id++);
  61         if (ret < 0)
  62                 return ret;
  63         return 0;
  64 }
  65
  66 typedef void (*hash_one_block_t)(void *data, void *digest);
  67 typedef void (*aes_keyexp_t)(void *key, void *enc_exp_keys, void *dec_exp_keys);
  68
  69 /**
  70  * Calculate the authentication pre-computes
  71  *
  72  * @param one_block_hash        Function pointer to calculate digest on ipad/opad
  73  * @param ipad                  Inner pad output byte array
  74  * @param opad                  Outer pad output byte array
  75  * @param hkey                  Authentication key
  76  * @param hkey_len              Authentication key length
  77  * @param blocksize             Block size of selected hash algo
  78  */
  79 static void
  80 calculate_auth_precomputes(hash_one_block_t one_block_hash,
  81                 uint8_t *ipad, uint8_t *opad,
  82                 uint8_t *hkey, uint16_t hkey_len,
  83                 uint16_t blocksize)
  84 {
  85         unsigned i, length;
  86
  87         uint8_t ipad_buf[blocksize] __rte_aligned(16);
  88         uint8_t opad_buf[blocksize] __rte_aligned(16);
  89
  90         /* Setup inner and outer pads */
  91         memset(ipad_buf, HMAC_IPAD_VALUE, blocksize);
  92         memset(opad_buf, HMAC_OPAD_VALUE, blocksize);
  93
  94         /* XOR hash key with inner and outer pads */
  95         length = hkey_len > blocksize ? blocksize : hkey_len;
  96
  97         for (i = 0; i < length; i++) {
  98                 ipad_buf[i] ^= hkey[i];
  99                 opad_buf[i] ^= hkey[i];
 100         }
 101
 102         /* Compute partial hashes */
 103         (*one_block_hash)(ipad_buf, ipad);
 104         (*one_block_hash)(opad_buf, opad);
 105
 106         /* Clean up stack */
 107         memset(ipad_buf, 0, blocksize);
 108         memset(opad_buf, 0, blocksize);
 109 }
 110
 111 /** Get xform chain order */
 112 static int
 113 aesni_mb_get_chain_order(const struct rte_crypto_xform *xform)
 114 {
 115         /*
 116          * Multi-buffer only supports HASH_CIPHER or CIPHER_HASH chained
 117          * operations, all other options are invalid, so we must have exactly
 118          * 2 xform structs chained together
 119          */
 120         if (xform->next == NULL || xform->next->next != NULL)
 121                 return -1;
 122
 123         if (xform->type == RTE_CRYPTO_XFORM_AUTH &&
 124                         xform->next->type == RTE_CRYPTO_XFORM_CIPHER)
 125                 return HASH_CIPHER;
 126
 127         if (xform->type == RTE_CRYPTO_XFORM_CIPHER &&
 128                                 xform->next->type == RTE_CRYPTO_XFORM_AUTH)
 129                 return CIPHER_HASH;
 130
 131         return -1;
 132 }
 133
 134 /** Set session authentication parameters */
 135 static int
 136 aesni_mb_set_session_auth_parameters(const struct aesni_mb_ops *mb_ops,
 137                 struct aesni_mb_session *sess,
 138                 const struct rte_crypto_xform *xform)
 139 {
 140         hash_one_block_t hash_oneblock_fn;
 141
 142         if (xform->type != RTE_CRYPTO_XFORM_AUTH) {
 143                 MB_LOG_ERR("Crypto xform struct not of type auth");
 144                 return -1;
 145         }
 146
 147         /* Set Authentication Parameters */
 148         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_XCBC_MAC) {
 149                 sess->auth.algo = AES_XCBC;
 150                 (*mb_ops->aux.keyexp.aes_xcbc)(xform->auth.key.data,
 151                                 sess->auth.xcbc.k1_expanded,
 152                                 sess->auth.xcbc.k2, sess->auth.xcbc.k3);
 153                 return 0;
 154         }
 155
 156         switch (xform->auth.algo) {
 157         case RTE_CRYPTO_AUTH_MD5_HMAC:
 158                 sess->auth.algo = MD5;
 159                 hash_oneblock_fn = mb_ops->aux.one_block.md5;
 160                 break;
 161         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 162                 sess->auth.algo = SHA1;
 163                 hash_oneblock_fn = mb_ops->aux.one_block.sha1;
 164                 break;
 165         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 166                 sess->auth.algo = SHA_224;
 167                 hash_oneblock_fn = mb_ops->aux.one_block.sha224;
 168                 break;
 169         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 170                 sess->auth.algo = SHA_256;
 171                 hash_oneblock_fn = mb_ops->aux.one_block.sha256;
 172                 break;
 173         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 174                 sess->auth.algo = SHA_384;
 175                 hash_oneblock_fn = mb_ops->aux.one_block.sha384;
 176                 break;
 177         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 178                 sess->auth.algo = SHA_512;
 179                 hash_oneblock_fn = mb_ops->aux.one_block.sha512;
 180                 break;
 181         default:
 182                 MB_LOG_ERR("Unsupported authentication algorithm selection");
 183                 return -1;
 184         }
 185
 186         /* Calculate Authentication precomputes */
 187         calculate_auth_precomputes(hash_oneblock_fn,
 188                         sess->auth.pads.inner, sess->auth.pads.outer,
 189                         xform->auth.key.data,
 190                         xform->auth.key.length,
 191                         get_auth_algo_blocksize(sess->auth.algo));
 192
 193         return 0;
 194 }
 195
 196 /** Set session cipher parameters */
 197 static int
 198 aesni_mb_set_session_cipher_parameters(const struct aesni_mb_ops *mb_ops,
 199                 struct aesni_mb_session *sess,
 200                 const struct rte_crypto_xform *xform)
 201 {
 202         aes_keyexp_t aes_keyexp_fn;
 203
 204         if (xform->type != RTE_CRYPTO_XFORM_CIPHER) {
 205                 MB_LOG_ERR("Crypto xform struct not of type cipher");
 206                 return -1;
 207         }
 208
 209         /* Select cipher direction */
 210         switch (xform->cipher.op) {
 211         case RTE_CRYPTO_CIPHER_OP_ENCRYPT:
 212                 sess->cipher.direction = ENCRYPT;
 213                 break;
 214         case RTE_CRYPTO_CIPHER_OP_DECRYPT:
 215                 sess->cipher.direction = DECRYPT;
 216                 break;
 217         default:
 218                 MB_LOG_ERR("Unsupported cipher operation parameter");
 219                 return -1;
 220         }
 221
 222         /* Select cipher mode */
 223         switch (xform->cipher.algo) {
 224         case RTE_CRYPTO_CIPHER_AES_CBC:
 225                 sess->cipher.mode = CBC;
 226                 break;
 227         default:
 228                 MB_LOG_ERR("Unsupported cipher mode parameter");
 229                 return -1;
 230         }
 231
 232         /* Check key length and choose key expansion function */
 233         switch (xform->cipher.key.length) {
 234         case AES_128_BYTES:
 235                 sess->cipher.key_length_in_bytes = AES_128_BYTES;
 236                 aes_keyexp_fn = mb_ops->aux.keyexp.aes128;
 237                 break;
 238         case AES_192_BYTES:
 239                 sess->cipher.key_length_in_bytes = AES_192_BYTES;
 240                 aes_keyexp_fn = mb_ops->aux.keyexp.aes192;
 241                 break;
 242         case AES_256_BYTES:
 243                 sess->cipher.key_length_in_bytes = AES_256_BYTES;
 244                 aes_keyexp_fn = mb_ops->aux.keyexp.aes256;
 245                 break;
 246         default:
 247                 MB_LOG_ERR("Unsupported cipher key length");
 248                 return -1;
 249         }
 250
 251         /* Expanded cipher keys */
 252         (*aes_keyexp_fn)(xform->cipher.key.data,
 253                         sess->cipher.expanded_aes_keys.encode,
 254                         sess->cipher.expanded_aes_keys.decode);
 255
 256         return 0;
 257 }
 258
 259 /** Parse crypto xform chain and set private session parameters */
 260 int
 261 aesni_mb_set_session_parameters(const struct aesni_mb_ops *mb_ops,
 262                 struct aesni_mb_session *sess,
 263                 const struct rte_crypto_xform *xform)
 264 {
 265         const struct rte_crypto_xform *auth_xform = NULL;
 266         const struct rte_crypto_xform *cipher_xform = NULL;
 267
 268         /* Select Crypto operation - hash then cipher / cipher then hash */
 269         switch (aesni_mb_get_chain_order(xform)) {
 270         case HASH_CIPHER:
 271                 sess->chain_order = HASH_CIPHER;
 272                 auth_xform = xform;
 273                 cipher_xform = xform->next;
 274                 break;
 275         case CIPHER_HASH:
 276                 sess->chain_order = CIPHER_HASH;
 277                 auth_xform = xform->next;
 278                 cipher_xform = xform;
 279                 break;
 280         default:
 281                 MB_LOG_ERR("Unsupported operation chain order parameter");
 282                 return -1;
 283         }
 284
 285         if (aesni_mb_set_session_auth_parameters(mb_ops, sess, auth_xform)) {
 286                 MB_LOG_ERR("Invalid/unsupported authentication parameters");
 287                 return -1;
 288         }
 289
 290         if (aesni_mb_set_session_cipher_parameters(mb_ops, sess,
 291                         cipher_xform)) {
 292                 MB_LOG_ERR("Invalid/unsupported cipher parameters");
 293                 return -1;
 294         }
 295         return 0;
 296 }
 297
 298 /** Get multi buffer session */
 299 static struct aesni_mb_session *
 300 get_session(struct aesni_mb_qp *qp, struct rte_crypto_op *crypto_op)
 301 {
 302         struct aesni_mb_session *sess;
 303
 304         if (crypto_op->type == RTE_CRYPTO_OP_WITH_SESSION) {
 305                 if (unlikely(crypto_op->session->type !=
 306                                 RTE_CRYPTODEV_AESNI_MB_PMD))
 307                         return NULL;
 308
 309                 sess = (struct aesni_mb_session *)crypto_op->session->_private;
 310         } else  {
 311                 struct rte_cryptodev_session *c_sess = NULL;
 312
 313                 if (rte_mempool_get(qp->sess_mp, (void **)&c_sess))
 314                         return NULL;
 315
 316                 sess = (struct aesni_mb_session *)c_sess->_private;
 317
 318                 if (unlikely(aesni_mb_set_session_parameters(qp->ops,
 319                                 sess, crypto_op->xform) != 0))
 320                         return NULL;
 321         }
 322
 323         return sess;
 324 }
 325
 326 /**
 327  * Process a crypto operation and complete a JOB_AES_HMAC job structure for
 328  * submission to the multi buffer library for processing.
 329  *
 330  * @param       qp      queue pair
 331  * @param       job     JOB_AES_HMAC structure to fill
 332  * @param       m       mbuf to process
 333  *
 334  * @return
 335  * - Completed JOB_AES_HMAC structure pointer on success
 336  * - NULL pointer if completion of JOB_AES_HMAC structure isn't possible
 337  */
 338 static JOB_AES_HMAC *
 339 process_crypto_op(struct aesni_mb_qp *qp, struct rte_mbuf *m,
 340                 struct rte_crypto_op *c_op, struct aesni_mb_session *session)
 341 {
 342         JOB_AES_HMAC *job;
 343
 344         job = (*qp->ops->job.get_next)(&qp->mb_mgr);
 345         if (unlikely(job == NULL))
 346                 return job;
 347
 348         /* Set crypto operation */
 349         job->chain_order = session->chain_order;
 350
 351         /* Set cipher parameters */
 352         job->cipher_direction = session->cipher.direction;
 353         job->cipher_mode = session->cipher.mode;
 354
 355         job->aes_key_len_in_bytes = session->cipher.key_length_in_bytes;
 356         job->aes_enc_key_expanded = session->cipher.expanded_aes_keys.encode;
 357         job->aes_dec_key_expanded = session->cipher.expanded_aes_keys.decode;
 358
 359
 360         /* Set authentication parameters */
 361         job->hash_alg = session->auth.algo;
 362         if (job->hash_alg == AES_XCBC) {
 363                 job->_k1_expanded = session->auth.xcbc.k1_expanded;
 364                 job->_k2 = session->auth.xcbc.k2;
 365                 job->_k3 = session->auth.xcbc.k3;
 366         } else {
 367                 job->hashed_auth_key_xor_ipad = session->auth.pads.inner;
 368                 job->hashed_auth_key_xor_opad = session->auth.pads.outer;
 369         }
 370
 371         /* Mutable crypto operation parameters */
 372
 373         /* Set digest output location */
 374         if (job->cipher_direction == DECRYPT) {
 375                 job->auth_tag_output = (uint8_t *)rte_pktmbuf_append(m,
 376                                 get_digest_byte_length(job->hash_alg));
 377
 378                 if (job->auth_tag_output)
 379                         memset(job->auth_tag_output, 0,
 380                                 sizeof(get_digest_byte_length(job->hash_alg)));
 381                 else
 382                         return NULL;
 383         } else {
 384                 job->auth_tag_output = c_op->digest.data;
 385         }
 386
 387         /*
 388          * Multiple buffer library current only support returning a truncated
 389          * digest length as specified in the relevant IPsec RFCs
 390          */
 391         job->auth_tag_output_len_in_bytes =
 392                         get_truncated_digest_byte_length(job->hash_alg);
 393
 394         /* Set IV parameters */
 395         job->iv = c_op->iv.data;
 396         job->iv_len_in_bytes = c_op->iv.length;
 397
 398         /* Data  Parameter */
 399         job->src = rte_pktmbuf_mtod(m, uint8_t *);
 400         job->dst = c_op->dst.m ?
 401                         rte_pktmbuf_mtod(c_op->dst.m, uint8_t *) +
 402                         c_op->dst.offset :
 403                         rte_pktmbuf_mtod(m, uint8_t *) +
 404                         c_op->data.to_cipher.offset;
 405
 406         job->cipher_start_src_offset_in_bytes = c_op->data.to_cipher.offset;
 407         job->msg_len_to_cipher_in_bytes = c_op->data.to_cipher.length;
 408
 409         job->hash_start_src_offset_in_bytes = c_op->data.to_hash.offset;
 410         job->msg_len_to_hash_in_bytes = c_op->data.to_hash.length;
 411
 412         /* Set user data to be crypto operation data struct */
 413         job->user_data = m;
 414         job->user_data2 = c_op;
 415
 416         return job;
 417 }
 418
 419 /**
 420  * Process a completed job and return rte_mbuf which job processed
 421  *
 422  * @param job   JOB_AES_HMAC job to process
 423  *
 424  * @return
 425  * - Returns processed mbuf which is trimmed of output digest used in
 426  * verification of supplied digest in the case of a HASH_CIPHER operation
 427  * - Returns NULL on invalid job
 428  */
 429 static struct rte_mbuf *
 430 post_process_mb_job(struct aesni_mb_qp *qp, JOB_AES_HMAC *job)
 431 {
 432         struct rte_mbuf *m;
 433         struct rte_crypto_op *c_op;
 434
 435         if (job->user_data == NULL)
 436                 return NULL;
 437
 438         /* handled retrieved job */
 439         m = (struct rte_mbuf *)job->user_data;
 440         c_op = (struct rte_crypto_op *)job->user_data2;
 441
 442         /* set status as successful by default */
 443         c_op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 444
 445         /* check if job has been processed  */
 446         if (unlikely(job->status != STS_COMPLETED)) {
 447                 c_op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 448                 return m;
 449         } else if (job->chain_order == HASH_CIPHER) {
 450                 /* Verify digest if required */
 451                 if (memcmp(job->auth_tag_output, c_op->digest.data,
 452                                 job->auth_tag_output_len_in_bytes) != 0)
 453                         c_op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 454
 455                 /* trim area used for digest from mbuf */
 456                 rte_pktmbuf_trim(m, get_digest_byte_length(job->hash_alg));
 457         }
 458
 459         /* Free session if a session-less crypto op */
 460         if (c_op->type == RTE_CRYPTO_OP_SESSIONLESS) {
 461                 rte_mempool_put(qp->sess_mp, c_op->session);
 462                 c_op->session = NULL;
 463         }
 464
 465         return m;
 466 }
 467
 468 /**
 469  * Process a completed JOB_AES_HMAC job and keep processing jobs until
 470  * get_completed_job return NULL
 471  *
 472  * @param qp            Queue Pair to process
 473  * @param job           JOB_AES_HMAC job
 474  *
 475  * @return
 476  * - Number of processed jobs
 477  */
 478 static unsigned
 479 handle_completed_jobs(struct aesni_mb_qp *qp, JOB_AES_HMAC *job)
 480 {
 481         struct rte_mbuf *m = NULL;
 482         unsigned processed_jobs = 0;
 483
 484         while (job) {
 485                 processed_jobs++;
 486                 m = post_process_mb_job(qp, job);
 487                 if (m)
 488                         rte_ring_enqueue(qp->processed_pkts, (void *)m);
 489                 else
 490                         qp->qp_stats.dequeue_err_count++;
 491
 492                 job = (*qp->ops->job.get_completed_job)(&qp->mb_mgr);
 493         }
 494
 495         return processed_jobs;
 496 }
 497
 498 static uint16_t
 499 aesni_mb_pmd_enqueue_burst(void *queue_pair, struct rte_mbuf **bufs,
 500                 uint16_t nb_bufs)
 501 {
 502         struct rte_mbuf_offload *ol;
 503
 504         struct aesni_mb_session *sess;
 505         struct aesni_mb_qp *qp = queue_pair;
 506
 507         JOB_AES_HMAC *job = NULL;
 508
 509         int i, processed_jobs = 0;
 510
 511         for (i = 0; i < nb_bufs; i++) {
 512                 ol = rte_pktmbuf_offload_get(bufs[i], RTE_PKTMBUF_OL_CRYPTO);
 513                 if (unlikely(ol == NULL)) {
 514                         qp->qp_stats.enqueue_err_count++;
 515                         goto flush_jobs;
 516                 }
 517
 518                 sess = get_session(qp, &ol->op.crypto);
 519                 if (unlikely(sess == NULL)) {
 520                         qp->qp_stats.enqueue_err_count++;
 521                         goto flush_jobs;
 522                 }
 523
 524                 job = process_crypto_op(qp, bufs[i], &ol->op.crypto, sess);
 525                 if (unlikely(job == NULL)) {
 526                         qp->qp_stats.enqueue_err_count++;
 527                         goto flush_jobs;
 528                 }
 529
 530                 /* Submit Job */
 531                 job = (*qp->ops->job.submit)(&qp->mb_mgr);
 532
 533                 /*
 534                  * If submit returns a processed job then handle it,
 535                  * before submitting subsequent jobs
 536                  */
 537                 if (job)
 538                         processed_jobs += handle_completed_jobs(qp, job);
 539         }
 540
 541         if (processed_jobs == 0)
 542                 goto flush_jobs;
 543         else
 544                 qp->qp_stats.enqueued_count += processed_jobs;
 545                 return i;
 546
 547 flush_jobs:
 548         /*
 549          * If we haven't processed any jobs in submit loop, then flush jobs
 550          * queue to stop the output stalling
 551          */
 552         job = (*qp->ops->job.flush_job)(&qp->mb_mgr);
 553         if (job)
 554                 qp->qp_stats.enqueued_count += handle_completed_jobs(qp, job);
 555
 556         return i;
 557 }
 558
 559 static uint16_t
 560 aesni_mb_pmd_dequeue_burst(void *queue_pair,
 561                 struct rte_mbuf **bufs, uint16_t nb_bufs)
 562 {
 563         struct aesni_mb_qp *qp = queue_pair;
 564
 565         unsigned nb_dequeued;
 566
 567         nb_dequeued = rte_ring_dequeue_burst(qp->processed_pkts,
 568                         (void **)bufs, nb_bufs);
 569         qp->qp_stats.dequeued_count += nb_dequeued;
 570
 571         return nb_dequeued;
 572 }
 573
 574
 575 static int cryptodev_aesni_mb_uninit(const char *name);
 576
 577 static int
 578 cryptodev_aesni_mb_create(const char *name, unsigned socket_id)
 579 {
 580         struct rte_cryptodev *dev;
 581         char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 582         struct aesni_mb_private *internals;
 583         enum aesni_mb_vector_mode vector_mode;
 584
 585         /* Check CPU for support for AES instruction set */
 586         if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_AES)) {
 587                 MB_LOG_ERR("AES instructions not supported by CPU");
 588                 return -EFAULT;
 589         }
 590
 591         /* Check CPU for supported vector instruction set */
 592         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
 593                 vector_mode = RTE_AESNI_MB_AVX2;
 594         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 595                 vector_mode = RTE_AESNI_MB_AVX;
 596         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
 597                 vector_mode = RTE_AESNI_MB_SSE;
 598         else {
 599                 MB_LOG_ERR("Vector instructions are not supported by CPU");
 600                 return -EFAULT;
 601         }
 602
 603         /* create a unique device name */
 604         if (create_unique_device_name(crypto_dev_name,
 605                         RTE_CRYPTODEV_NAME_MAX_LEN) != 0) {
 606                 MB_LOG_ERR("failed to create unique cryptodev name");
 607                 return -EINVAL;
 608         }
 609
 610
 611         dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
 612                         sizeof(struct aesni_mb_private), socket_id);
 613         if (dev == NULL) {
 614                 MB_LOG_ERR("failed to create cryptodev vdev");
 615                 goto init_error;
 616         }
 617
 618         dev->dev_type = RTE_CRYPTODEV_AESNI_MB_PMD;
 619         dev->dev_ops = rte_aesni_mb_pmd_ops;
 620
 621         /* register rx/tx burst functions for data path */
 622         dev->dequeue_burst = aesni_mb_pmd_dequeue_burst;
 623         dev->enqueue_burst = aesni_mb_pmd_enqueue_burst;
 624
 625         /* Set vector instructions mode supported */
 626         internals = dev->data->dev_private;
 627
 628         internals->vector_mode = vector_mode;
 629         internals->max_nb_queue_pairs = RTE_AESNI_MB_PMD_MAX_NB_QUEUE_PAIRS;
 630         internals->max_nb_sessions = RTE_AESNI_MB_PMD_MAX_NB_SESSIONS;
 631
 632         return dev->data->dev_id;
 633 init_error:
 634         MB_LOG_ERR("driver %s: cryptodev_aesni_create failed", name);
 635
 636         cryptodev_aesni_mb_uninit(crypto_dev_name);
 637         return -EFAULT;
 638 }
 639
 640
 641 static int
 642 cryptodev_aesni_mb_init(const char *name,
 643                 const char *params __rte_unused)
 644 {
 645         RTE_LOG(INFO, PMD, "Initialising %s\n", name);
 646
 647         return cryptodev_aesni_mb_create(name, rte_socket_id());
 648 }
 649
 650 static int
 651 cryptodev_aesni_mb_uninit(const char *name)
 652 {
 653         if (name == NULL)
 654                 return -EINVAL;
 655
 656         RTE_LOG(INFO, PMD, "Closing AESNI crypto device %s on numa socket %u\n",
 657                         name, rte_socket_id());
 658
 659         return 0;
 660 }
 661
 662 static struct rte_driver cryptodev_aesni_mb_pmd_drv = {
 663         .name = CRYPTODEV_NAME_AESNI_MB_PMD,
 664         .type = PMD_VDEV,
 665         .init = cryptodev_aesni_mb_init,
 666         .uninit = cryptodev_aesni_mb_uninit
 667 };
 668
 669 PMD_REGISTER_DRIVER(cryptodev_aesni_mb_pmd_drv);