drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015-2016 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_hexdump.h>
  35 #include <rte_cryptodev.h>
  36 #include <rte_cryptodev_pmd.h>
  37 #include <rte_vdev.h>
  38 #include <rte_malloc.h>
  39 #include <rte_cpuflags.h>
  40
  41 #include "rte_aesni_mb_pmd_private.h"
  42
  43 typedef void (*hash_one_block_t)(void *data, void *digest);
  44 typedef void (*aes_keyexp_t)(void *key, void *enc_exp_keys, void *dec_exp_keys);
  45
  46 /**
  47  * Calculate the authentication pre-computes
  48  *
  49  * @param one_block_hash        Function pointer to calculate digest on ipad/opad
  50  * @param ipad                  Inner pad output byte array
  51  * @param opad                  Outer pad output byte array
  52  * @param hkey                  Authentication key
  53  * @param hkey_len              Authentication key length
  54  * @param blocksize             Block size of selected hash algo
  55  */
  56 static void
  57 calculate_auth_precomputes(hash_one_block_t one_block_hash,
  58                 uint8_t *ipad, uint8_t *opad,
  59                 uint8_t *hkey, uint16_t hkey_len,
  60                 uint16_t blocksize)
  61 {
  62         unsigned i, length;
  63
  64         uint8_t ipad_buf[blocksize] __rte_aligned(16);
  65         uint8_t opad_buf[blocksize] __rte_aligned(16);
  66
  67         /* Setup inner and outer pads */
  68         memset(ipad_buf, HMAC_IPAD_VALUE, blocksize);
  69         memset(opad_buf, HMAC_OPAD_VALUE, blocksize);
  70
  71         /* XOR hash key with inner and outer pads */
  72         length = hkey_len > blocksize ? blocksize : hkey_len;
  73
  74         for (i = 0; i < length; i++) {
  75                 ipad_buf[i] ^= hkey[i];
  76                 opad_buf[i] ^= hkey[i];
  77         }
  78
  79         /* Compute partial hashes */
  80         (*one_block_hash)(ipad_buf, ipad);
  81         (*one_block_hash)(opad_buf, opad);
  82
  83         /* Clean up stack */
  84         memset(ipad_buf, 0, blocksize);
  85         memset(opad_buf, 0, blocksize);
  86 }
  87
  88 /** Get xform chain order */
  89 static enum aesni_mb_operation
  90 aesni_mb_get_chain_order(const struct rte_crypto_sym_xform *xform)
  91 {
  92         if (xform == NULL)
  93                 return AESNI_MB_OP_NOT_SUPPORTED;
  94
  95         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  96                 if (xform->next == NULL)
  97                         return AESNI_MB_OP_CIPHER_ONLY;
  98                 if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  99                         return AESNI_MB_OP_CIPHER_HASH;
 100         }
 101
 102         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
 103                 if (xform->next == NULL)
 104                         return AESNI_MB_OP_HASH_ONLY;
 105                 if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
 106                         return AESNI_MB_OP_HASH_CIPHER;
 107         }
 108
 109         return AESNI_MB_OP_NOT_SUPPORTED;
 110 }
 111
 112 /** Set session authentication parameters */
 113 static int
 114 aesni_mb_set_session_auth_parameters(const struct aesni_mb_ops *mb_ops,
 115                 struct aesni_mb_session *sess,
 116                 const struct rte_crypto_sym_xform *xform)
 117 {
 118         hash_one_block_t hash_oneblock_fn;
 119
 120         if (xform == NULL) {
 121                 sess->auth.algo = NULL_HASH;
 122                 return 0;
 123         }
 124
 125         if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH) {
 126                 MB_LOG_ERR("Crypto xform struct not of type auth");
 127                 return -1;
 128         }
 129
 130         /* Select auth generate/verify */
 131         sess->auth.operation = xform->auth.op;
 132
 133         /* Set Authentication Parameters */
 134         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_XCBC_MAC) {
 135                 sess->auth.algo = AES_XCBC;
 136                 (*mb_ops->aux.keyexp.aes_xcbc)(xform->auth.key.data,
 137                                 sess->auth.xcbc.k1_expanded,
 138                                 sess->auth.xcbc.k2, sess->auth.xcbc.k3);
 139                 return 0;
 140         }
 141
 142         switch (xform->auth.algo) {
 143         case RTE_CRYPTO_AUTH_MD5_HMAC:
 144                 sess->auth.algo = MD5;
 145                 hash_oneblock_fn = mb_ops->aux.one_block.md5;
 146                 break;
 147         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 148                 sess->auth.algo = SHA1;
 149                 hash_oneblock_fn = mb_ops->aux.one_block.sha1;
 150                 break;
 151         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 152                 sess->auth.algo = SHA_224;
 153                 hash_oneblock_fn = mb_ops->aux.one_block.sha224;
 154                 break;
 155         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 156                 sess->auth.algo = SHA_256;
 157                 hash_oneblock_fn = mb_ops->aux.one_block.sha256;
 158                 break;
 159         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 160                 sess->auth.algo = SHA_384;
 161                 hash_oneblock_fn = mb_ops->aux.one_block.sha384;
 162                 break;
 163         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 164                 sess->auth.algo = SHA_512;
 165                 hash_oneblock_fn = mb_ops->aux.one_block.sha512;
 166                 break;
 167         default:
 168                 MB_LOG_ERR("Unsupported authentication algorithm selection");
 169                 return -1;
 170         }
 171
 172         /* Calculate Authentication precomputes */
 173         calculate_auth_precomputes(hash_oneblock_fn,
 174                         sess->auth.pads.inner, sess->auth.pads.outer,
 175                         xform->auth.key.data,
 176                         xform->auth.key.length,
 177                         get_auth_algo_blocksize(sess->auth.algo));
 178
 179         return 0;
 180 }
 181
 182 /** Set session cipher parameters */
 183 static int
 184 aesni_mb_set_session_cipher_parameters(const struct aesni_mb_ops *mb_ops,
 185                 struct aesni_mb_session *sess,
 186                 const struct rte_crypto_sym_xform *xform)
 187 {
 188         aes_keyexp_t aes_keyexp_fn;
 189
 190         if (xform == NULL) {
 191                 sess->cipher.mode = NULL_CIPHER;
 192                 return 0;
 193         }
 194
 195         if (xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER) {
 196                 MB_LOG_ERR("Crypto xform struct not of type cipher");
 197                 return -1;
 198         }
 199
 200         /* Select cipher direction */
 201         switch (xform->cipher.op) {
 202         case RTE_CRYPTO_CIPHER_OP_ENCRYPT:
 203                 sess->cipher.direction = ENCRYPT;
 204                 break;
 205         case RTE_CRYPTO_CIPHER_OP_DECRYPT:
 206                 sess->cipher.direction = DECRYPT;
 207                 break;
 208         default:
 209                 MB_LOG_ERR("Unsupported cipher operation parameter");
 210                 return -1;
 211         }
 212
 213         /* Select cipher mode */
 214         switch (xform->cipher.algo) {
 215         case RTE_CRYPTO_CIPHER_AES_CBC:
 216                 sess->cipher.mode = CBC;
 217                 break;
 218         case RTE_CRYPTO_CIPHER_AES_CTR:
 219                 sess->cipher.mode = CNTR;
 220                 break;
 221         default:
 222                 MB_LOG_ERR("Unsupported cipher mode parameter");
 223                 return -1;
 224         }
 225
 226         /* Check key length and choose key expansion function */
 227         switch (xform->cipher.key.length) {
 228         case AES_128_BYTES:
 229                 sess->cipher.key_length_in_bytes = AES_128_BYTES;
 230                 aes_keyexp_fn = mb_ops->aux.keyexp.aes128;
 231                 break;
 232         case AES_192_BYTES:
 233                 sess->cipher.key_length_in_bytes = AES_192_BYTES;
 234                 aes_keyexp_fn = mb_ops->aux.keyexp.aes192;
 235                 break;
 236         case AES_256_BYTES:
 237                 sess->cipher.key_length_in_bytes = AES_256_BYTES;
 238                 aes_keyexp_fn = mb_ops->aux.keyexp.aes256;
 239                 break;
 240         default:
 241                 MB_LOG_ERR("Unsupported cipher key length");
 242                 return -1;
 243         }
 244
 245         /* Expanded cipher keys */
 246         (*aes_keyexp_fn)(xform->cipher.key.data,
 247                         sess->cipher.expanded_aes_keys.encode,
 248                         sess->cipher.expanded_aes_keys.decode);
 249
 250         return 0;
 251 }
 252
 253 /** Parse crypto xform chain and set private session parameters */
 254 int
 255 aesni_mb_set_session_parameters(const struct aesni_mb_ops *mb_ops,
 256                 struct aesni_mb_session *sess,
 257                 const struct rte_crypto_sym_xform *xform)
 258 {
 259         const struct rte_crypto_sym_xform *auth_xform = NULL;
 260         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 261
 262         /* Select Crypto operation - hash then cipher / cipher then hash */
 263         switch (aesni_mb_get_chain_order(xform)) {
 264         case AESNI_MB_OP_HASH_CIPHER:
 265                 sess->chain_order = HASH_CIPHER;
 266                 auth_xform = xform;
 267                 cipher_xform = xform->next;
 268                 break;
 269         case AESNI_MB_OP_CIPHER_HASH:
 270                 sess->chain_order = CIPHER_HASH;
 271                 auth_xform = xform->next;
 272                 cipher_xform = xform;
 273                 break;
 274         case AESNI_MB_OP_HASH_ONLY:
 275                 sess->chain_order = HASH_CIPHER;
 276                 auth_xform = xform;
 277                 cipher_xform = NULL;
 278                 break;
 279         case AESNI_MB_OP_CIPHER_ONLY:
 280                 /*
 281                  * Multi buffer library operates only at two modes,
 282                  * CIPHER_HASH and HASH_CIPHER. When doing ciphering only,
 283                  * chain order depends on cipher operation: encryption is always
 284                  * the first operation and decryption the last one.
 285                  */
 286                 if (xform->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
 287                         sess->chain_order = CIPHER_HASH;
 288                 else
 289                         sess->chain_order = HASH_CIPHER;
 290                 auth_xform = NULL;
 291                 cipher_xform = xform;
 292                 break;
 293         case AESNI_MB_OP_NOT_SUPPORTED:
 294         default:
 295                 MB_LOG_ERR("Unsupported operation chain order parameter");
 296                 return -1;
 297         }
 298
 299         if (aesni_mb_set_session_auth_parameters(mb_ops, sess, auth_xform)) {
 300                 MB_LOG_ERR("Invalid/unsupported authentication parameters");
 301                 return -1;
 302         }
 303
 304         if (aesni_mb_set_session_cipher_parameters(mb_ops, sess,
 305                         cipher_xform)) {
 306                 MB_LOG_ERR("Invalid/unsupported cipher parameters");
 307                 return -1;
 308         }
 309         return 0;
 310 }
 311
 312 /** Get multi buffer session */
 313 static struct aesni_mb_session *
 314 get_session(struct aesni_mb_qp *qp, struct rte_crypto_op *op)
 315 {
 316         struct aesni_mb_session *sess = NULL;
 317
 318         if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) {
 319                 if (unlikely(op->sym->session->dev_type !=
 320                                 RTE_CRYPTODEV_AESNI_MB_PMD))
 321                         return NULL;
 322
 323                 sess = (struct aesni_mb_session *)op->sym->session->_private;
 324         } else  {
 325                 void *_sess = NULL;
 326
 327                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 328                         return NULL;
 329
 330                 sess = (struct aesni_mb_session *)
 331                         ((struct rte_cryptodev_sym_session *)_sess)->_private;
 332
 333                 if (unlikely(aesni_mb_set_session_parameters(qp->ops,
 334                                 sess, op->sym->xform) != 0)) {
 335                         rte_mempool_put(qp->sess_mp, _sess);
 336                         sess = NULL;
 337                 }
 338                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 339         }
 340
 341         return sess;
 342 }
 343
 344 /**
 345  * Process a crypto operation and complete a JOB_AES_HMAC job structure for
 346  * submission to the multi buffer library for processing.
 347  *
 348  * @param       qp      queue pair
 349  * @param       job     JOB_AES_HMAC structure to fill
 350  * @param       m       mbuf to process
 351  *
 352  * @return
 353  * - Completed JOB_AES_HMAC structure pointer on success
 354  * - NULL pointer if completion of JOB_AES_HMAC structure isn't possible
 355  */
 356 static JOB_AES_HMAC *
 357 process_crypto_op(struct aesni_mb_qp *qp, struct rte_crypto_op *op,
 358                 struct aesni_mb_session *session)
 359 {
 360         JOB_AES_HMAC *job;
 361
 362         struct rte_mbuf *m_src = op->sym->m_src, *m_dst;
 363         uint16_t m_offset = 0;
 364
 365         job = (*qp->ops->job.get_next)(&qp->mb_mgr);
 366         if (unlikely(job == NULL))
 367                 return job;
 368
 369         /* Set crypto operation */
 370         job->chain_order = session->chain_order;
 371
 372         /* Set cipher parameters */
 373         job->cipher_direction = session->cipher.direction;
 374         job->cipher_mode = session->cipher.mode;
 375
 376         job->aes_key_len_in_bytes = session->cipher.key_length_in_bytes;
 377         job->aes_enc_key_expanded = session->cipher.expanded_aes_keys.encode;
 378         job->aes_dec_key_expanded = session->cipher.expanded_aes_keys.decode;
 379
 380
 381         /* Set authentication parameters */
 382         job->hash_alg = session->auth.algo;
 383         if (job->hash_alg == AES_XCBC) {
 384                 job->_k1_expanded = session->auth.xcbc.k1_expanded;
 385                 job->_k2 = session->auth.xcbc.k2;
 386                 job->_k3 = session->auth.xcbc.k3;
 387         } else {
 388                 job->hashed_auth_key_xor_ipad = session->auth.pads.inner;
 389                 job->hashed_auth_key_xor_opad = session->auth.pads.outer;
 390         }
 391
 392         /* Mutable crypto operation parameters */
 393         if (op->sym->m_dst) {
 394                 m_src = m_dst = op->sym->m_dst;
 395
 396                 /* append space for output data to mbuf */
 397                 char *odata = rte_pktmbuf_append(m_dst,
 398                                 rte_pktmbuf_data_len(op->sym->m_src));
 399                 if (odata == NULL) {
 400                         MB_LOG_ERR("failed to allocate space in destination "
 401                                         "mbuf for source data");
 402                         return NULL;
 403                 }
 404
 405                 memcpy(odata, rte_pktmbuf_mtod(op->sym->m_src, void*),
 406                                 rte_pktmbuf_data_len(op->sym->m_src));
 407         } else {
 408                 m_dst = m_src;
 409                 m_offset = op->sym->cipher.data.offset;
 410         }
 411
 412         /* Set digest output location */
 413         if (job->hash_alg != NULL_HASH &&
 414                         session->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
 415                 job->auth_tag_output = (uint8_t *)rte_pktmbuf_append(m_dst,
 416                                 get_digest_byte_length(job->hash_alg));
 417
 418                 if (job->auth_tag_output == NULL) {
 419                         MB_LOG_ERR("failed to allocate space in output mbuf "
 420                                         "for temp digest");
 421                         return NULL;
 422                 }
 423
 424                 memset(job->auth_tag_output, 0,
 425                                 sizeof(get_digest_byte_length(job->hash_alg)));
 426
 427         } else {
 428                 job->auth_tag_output = op->sym->auth.digest.data;
 429         }
 430
 431         /*
 432          * Multi-buffer library current only support returning a truncated
 433          * digest length as specified in the relevant IPsec RFCs
 434          */
 435         job->auth_tag_output_len_in_bytes =
 436                         get_truncated_digest_byte_length(job->hash_alg);
 437
 438         /* Set IV parameters */
 439         job->iv = op->sym->cipher.iv.data;
 440         job->iv_len_in_bytes = op->sym->cipher.iv.length;
 441
 442         /* Data  Parameter */
 443         job->src = rte_pktmbuf_mtod(m_src, uint8_t *);
 444         job->dst = rte_pktmbuf_mtod_offset(m_dst, uint8_t *, m_offset);
 445
 446         job->cipher_start_src_offset_in_bytes = op->sym->cipher.data.offset;
 447         job->msg_len_to_cipher_in_bytes = op->sym->cipher.data.length;
 448
 449         job->hash_start_src_offset_in_bytes = op->sym->auth.data.offset;
 450         job->msg_len_to_hash_in_bytes = op->sym->auth.data.length;
 451
 452         /* Set user data to be crypto operation data struct */
 453         job->user_data = op;
 454         job->user_data2 = m_dst;
 455
 456         return job;
 457 }
 458
 459 /**
 460  * Process a completed job and return rte_mbuf which job processed
 461  *
 462  * @param job   JOB_AES_HMAC job to process
 463  *
 464  * @return
 465  * - Returns processed mbuf which is trimmed of output digest used in
 466  * verification of supplied digest in the case of a HASH_CIPHER operation
 467  * - Returns NULL on invalid job
 468  */
 469 static struct rte_crypto_op *
 470 post_process_mb_job(struct aesni_mb_qp *qp, JOB_AES_HMAC *job)
 471 {
 472         struct rte_crypto_op *op =
 473                         (struct rte_crypto_op *)job->user_data;
 474         struct rte_mbuf *m_dst =
 475                         (struct rte_mbuf *)job->user_data2;
 476         struct aesni_mb_session *sess;
 477
 478         if (op == NULL || m_dst == NULL)
 479                 return NULL;
 480
 481         /* set status as successful by default */
 482         op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 483
 484         /* check if job has been processed  */
 485         if (unlikely(job->status != STS_COMPLETED)) {
 486                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 487                 return op;
 488         } else if (job->hash_alg != NULL_HASH) {
 489                 sess = (struct aesni_mb_session *)op->sym->session->_private;
 490                 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
 491                         /* Verify digest if required */
 492                         if (memcmp(job->auth_tag_output,
 493                                         op->sym->auth.digest.data,
 494                                         job->auth_tag_output_len_in_bytes) != 0)
 495                                 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 496
 497                         /* trim area used for digest from mbuf */
 498                         rte_pktmbuf_trim(m_dst,
 499                                         get_digest_byte_length(job->hash_alg));
 500                 }
 501         }
 502
 503         /* Free session if a session-less crypto op */
 504         if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
 505                 rte_mempool_put(qp->sess_mp, op->sym->session);
 506                 op->sym->session = NULL;
 507         }
 508
 509         return op;
 510 }
 511
 512 /**
 513  * Process a completed JOB_AES_HMAC job and keep processing jobs until
 514  * get_completed_job return NULL
 515  *
 516  * @param qp            Queue Pair to process
 517  * @param job           JOB_AES_HMAC job
 518  *
 519  * @return
 520  * - Number of processed jobs
 521  */
 522 static unsigned
 523 handle_completed_jobs(struct aesni_mb_qp *qp, JOB_AES_HMAC *job)
 524 {
 525         struct rte_crypto_op *op = NULL;
 526         unsigned processed_jobs = 0;
 527
 528         while (job) {
 529                 processed_jobs++;
 530                 op = post_process_mb_job(qp, job);
 531                 if (op)
 532                         rte_ring_enqueue(qp->processed_ops, (void *)op);
 533                 else
 534                         qp->stats.dequeue_err_count++;
 535                 job = (*qp->ops->job.get_completed_job)(&qp->mb_mgr);
 536         }
 537
 538         return processed_jobs;
 539 }
 540
 541 static uint16_t
 542 aesni_mb_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 543                 uint16_t nb_ops)
 544 {
 545         struct aesni_mb_session *sess;
 546         struct aesni_mb_qp *qp = queue_pair;
 547
 548         JOB_AES_HMAC *job = NULL;
 549
 550         int i, processed_jobs = 0;
 551
 552         for (i = 0; i < nb_ops; i++) {
 553 #ifdef RTE_LIBRTE_PMD_AESNI_MB_DEBUG
 554                 if (unlikely(ops[i]->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 555                         MB_LOG_ERR("PMD only supports symmetric crypto "
 556                                 "operation requests, op (%p) is not a "
 557                                 "symmetric operation.", ops[i]);
 558                         qp->stats.enqueue_err_count++;
 559                         goto flush_jobs;
 560                 }
 561
 562                 if (!rte_pktmbuf_is_contiguous(ops[i]->sym->m_src) ||
 563                                 (ops[i]->sym->m_dst != NULL &&
 564                                 !rte_pktmbuf_is_contiguous(
 565                                                 ops[i]->sym->m_dst))) {
 566                         MB_LOG_ERR("PMD supports only contiguous mbufs, "
 567                                 "op (%p) provides noncontiguous mbuf as "
 568                                 "source/destination buffer.\n", ops[i]);
 569                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 570                         qp->stats.enqueue_err_count++;
 571                         goto flush_jobs;
 572                 }
 573 #endif
 574
 575                 sess = get_session(qp, ops[i]);
 576                 if (unlikely(sess == NULL)) {
 577                         qp->stats.enqueue_err_count++;
 578                         goto flush_jobs;
 579                 }
 580
 581                 job = process_crypto_op(qp, ops[i], sess);
 582                 if (unlikely(job == NULL)) {
 583                         qp->stats.enqueue_err_count++;
 584                         goto flush_jobs;
 585                 }
 586
 587                 /* Submit Job */
 588                 job = (*qp->ops->job.submit)(&qp->mb_mgr);
 589
 590                 /*
 591                  * If submit returns a processed job then handle it,
 592                  * before submitting subsequent jobs
 593                  */
 594                 if (job)
 595                         processed_jobs += handle_completed_jobs(qp, job);
 596         }
 597
 598         if (processed_jobs == 0)
 599                 goto flush_jobs;
 600         else
 601                 qp->stats.enqueued_count += processed_jobs;
 602         return i;
 603
 604 flush_jobs:
 605         /*
 606          * If we haven't processed any jobs in submit loop, then flush jobs
 607          * queue to stop the output stalling
 608          */
 609         job = (*qp->ops->job.flush_job)(&qp->mb_mgr);
 610         if (job)
 611                 qp->stats.enqueued_count += handle_completed_jobs(qp, job);
 612
 613         return i;
 614 }
 615
 616 static uint16_t
 617 aesni_mb_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
 618                 uint16_t nb_ops)
 619 {
 620         struct aesni_mb_qp *qp = queue_pair;
 621
 622         unsigned nb_dequeued;
 623
 624         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 625                         (void **)ops, nb_ops);
 626         qp->stats.dequeued_count += nb_dequeued;
 627
 628         return nb_dequeued;
 629 }
 630
 631
 632 static int cryptodev_aesni_mb_remove(const char *name);
 633
 634 static int
 635 cryptodev_aesni_mb_create(struct rte_crypto_vdev_init_params *init_params)
 636 {
 637         struct rte_cryptodev *dev;
 638         struct aesni_mb_private *internals;
 639         enum aesni_mb_vector_mode vector_mode;
 640
 641         if (init_params->name[0] == '\0') {
 642                 int ret = rte_cryptodev_pmd_create_dev_name(
 643                                 init_params->name,
 644                                 RTE_STR(CRYPTODEV_NAME_AESNI_MB_PMD));
 645
 646                 if (ret < 0) {
 647                         MB_LOG_ERR("failed to create unique name");
 648                         return ret;
 649                 }
 650         }
 651
 652         /* Check CPU for supported vector instruction set */
 653         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
 654                 vector_mode = RTE_AESNI_MB_AVX512;
 655         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
 656                 vector_mode = RTE_AESNI_MB_AVX2;
 657         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 658                 vector_mode = RTE_AESNI_MB_AVX;
 659         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
 660                 vector_mode = RTE_AESNI_MB_SSE;
 661         else {
 662                 MB_LOG_ERR("Vector instructions are not supported by CPU");
 663                 return -EFAULT;
 664         }
 665
 666         dev = rte_cryptodev_pmd_virtual_dev_init(init_params->name,
 667                         sizeof(struct aesni_mb_private), init_params->socket_id);
 668         if (dev == NULL) {
 669                 MB_LOG_ERR("failed to create cryptodev vdev");
 670                 goto init_error;
 671         }
 672
 673         dev->dev_type = RTE_CRYPTODEV_AESNI_MB_PMD;
 674         dev->dev_ops = rte_aesni_mb_pmd_ops;
 675
 676         /* register rx/tx burst functions for data path */
 677         dev->dequeue_burst = aesni_mb_pmd_dequeue_burst;
 678         dev->enqueue_burst = aesni_mb_pmd_enqueue_burst;
 679
 680         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 681                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 682                         RTE_CRYPTODEV_FF_CPU_AESNI;
 683
 684         switch (vector_mode) {
 685         case RTE_AESNI_MB_SSE:
 686                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 687                 break;
 688         case RTE_AESNI_MB_AVX:
 689                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
 690                 break;
 691         case RTE_AESNI_MB_AVX2:
 692                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
 693                 break;
 694         case RTE_AESNI_MB_AVX512:
 695                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX512;
 696                 break;
 697         default:
 698                 break;
 699         }
 700
 701         /* Set vector instructions mode supported */
 702         internals = dev->data->dev_private;
 703
 704         internals->vector_mode = vector_mode;
 705         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 706         internals->max_nb_sessions = init_params->max_nb_sessions;
 707
 708         return 0;
 709 init_error:
 710         MB_LOG_ERR("driver %s: cryptodev_aesni_create failed",
 711                         init_params->name);
 712
 713         cryptodev_aesni_mb_remove(init_params->name);
 714         return -EFAULT;
 715 }
 716
 717
 718 static int
 719 cryptodev_aesni_mb_probe(const char *name,
 720                 const char *input_args)
 721 {
 722         struct rte_crypto_vdev_init_params init_params = {
 723                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 724                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 725                 rte_socket_id(),
 726                 ""
 727         };
 728
 729         rte_cryptodev_parse_vdev_init_params(&init_params, input_args);
 730
 731         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 732                         init_params.socket_id);
 733         if (init_params.name[0] != '\0')
 734                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 735                         init_params.name);
 736         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 737                         init_params.max_nb_queue_pairs);
 738         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 739                         init_params.max_nb_sessions);
 740
 741         return cryptodev_aesni_mb_create(&init_params);
 742 }
 743
 744 static int
 745 cryptodev_aesni_mb_remove(const char *name)
 746 {
 747         if (name == NULL)
 748                 return -EINVAL;
 749
 750         RTE_LOG(INFO, PMD, "Closing AESNI crypto device %s on numa socket %u\n",
 751                         name, rte_socket_id());
 752
 753         return 0;
 754 }
 755
 756 static struct rte_vdev_driver cryptodev_aesni_mb_pmd_drv = {
 757         .probe = cryptodev_aesni_mb_probe,
 758         .remove = cryptodev_aesni_mb_remove
 759 };
 760
 761 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd_drv);
 762 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd);
 763 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_MB_PMD,
 764         "max_nb_queue_pairs=<int> "
 765         "max_nb_sessions=<int> "
 766         "socket_id=<int>");