drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2017 Intel Corporation
   3  */
   4
   5 #include <string.h>
   6
   7 #include <rte_common.h>
   8 #include <rte_malloc.h>
   9 #include <rte_cryptodev_pmd.h>
  10
  11 #include "rte_aesni_mb_pmd_private.h"
  12
  13
  14 static const struct rte_cryptodev_capabilities aesni_mb_pmd_capabilities[] = {
  15         {       /* MD5 HMAC */
  16                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  17                 {.sym = {
  18                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  19                         {.auth = {
  20                                 .algo = RTE_CRYPTO_AUTH_MD5_HMAC,
  21                                 .block_size = 64,
  22                                 .key_size = {
  23                                         .min = 1,
  24                                         .max = 64,
  25                                         .increment = 1
  26                                 },
  27                                 .digest_size = {
  28 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
  29                                         .min = 1,
  30                                         .max = 16,
  31                                         .increment = 1
  32 #else
  33                                         .min = 12,
  34                                         .max = 12,
  35                                         .increment = 0
  36 #endif
  37                                 },
  38                                 .iv_size = { 0 }
  39                         }, }
  40                 }, }
  41         },
  42         {       /* SHA1 HMAC */
  43                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  44                 {.sym = {
  45                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  46                         {.auth = {
  47                                 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  48                                 .block_size = 64,
  49                                 .key_size = {
  50                                         .min = 1,
  51 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
  52                                         .max = 65535,
  53 #else
  54                                         .max = 64,
  55 #endif
  56                                         .increment = 1
  57                                 },
  58                                 .digest_size = {
  59 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
  60                                         .min = 1,
  61                                         .max = 20,
  62                                         .increment = 1
  63 #else
  64                                         .min = 12,
  65                                         .max = 12,
  66                                         .increment = 0
  67 #endif
  68                                 },
  69                                 .iv_size = { 0 }
  70                         }, }
  71                 }, }
  72         },
  73         {       /* SHA224 HMAC */
  74                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  75                 {.sym = {
  76                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  77                         {.auth = {
  78                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
  79                                 .block_size = 64,
  80                                 .key_size = {
  81                                         .min = 1,
  82 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
  83                                         .max = 65535,
  84 #else
  85                                         .max = 64,
  86 #endif
  87                                         .increment = 1
  88                                 },
  89                                 .digest_size = {
  90 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
  91                                         .min = 1,
  92                                         .max = 28,
  93                                         .increment = 1
  94 #else
  95                                         .min = 14,
  96                                         .max = 14,
  97                                         .increment = 0
  98 #endif
  99                                 },
 100                                 .iv_size = { 0 }
 101                         }, }
 102                 }, }
 103         },
 104         {       /* SHA256 HMAC */
 105                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 106                 {.sym = {
 107                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 108                         {.auth = {
 109                                 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 110                                 .block_size = 64,
 111                                 .key_size = {
 112                                         .min = 1,
 113 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 114                                         .max = 65535,
 115 #else
 116                                         .max = 64,
 117 #endif
 118                                         .increment = 1
 119                                 },
 120                                 .digest_size = {
 121 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 122                                         .min = 1,
 123                                         .max = 32,
 124                                         .increment = 1
 125 #else
 126                                         .min = 16,
 127                                         .max = 16,
 128                                         .increment = 0
 129 #endif
 130                                 },
 131                                 .iv_size = { 0 }
 132                         }, }
 133                 }, }
 134         },
 135         {       /* SHA384 HMAC */
 136                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 137                 {.sym = {
 138                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 139                         {.auth = {
 140                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 141                                 .block_size = 128,
 142                                 .key_size = {
 143                                         .min = 1,
 144 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 145                                         .max = 65535,
 146 #else
 147                                         .max = 128,
 148 #endif
 149                                         .increment = 1
 150                                 },
 151                                 .digest_size = {
 152 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 153                                         .min = 1,
 154                                         .max = 48,
 155                                         .increment = 1
 156 #else
 157                                         .min = 24,
 158                                         .max = 24,
 159                                         .increment = 0
 160 #endif
 161                                 },
 162                                 .iv_size = { 0 }
 163                         }, }
 164                 }, }
 165         },
 166         {       /* SHA512 HMAC */
 167                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 168                 {.sym = {
 169                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 170                         {.auth = {
 171                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 172                                 .block_size = 128,
 173                                 .key_size = {
 174                                         .min = 1,
 175 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 176                                         .max = 65535,
 177 #else
 178                                         .max = 128,
 179 #endif
 180                                         .increment = 1
 181                                 },
 182                                 .digest_size = {
 183 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 184                                         .min = 1,
 185                                         .max = 64,
 186                                         .increment = 1
 187 #else
 188                                         .min = 32,
 189                                         .max = 32,
 190                                         .increment = 0
 191 #endif
 192                                 },
 193                                 .iv_size = { 0 }
 194                         }, }
 195                 }, }
 196         },
 197         {       /* AES XCBC HMAC */
 198                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 199                 {.sym = {
 200                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 201                         {.auth = {
 202                                 .algo = RTE_CRYPTO_AUTH_AES_XCBC_MAC,
 203                                 .block_size = 16,
 204                                 .key_size = {
 205                                         .min = 16,
 206                                         .max = 16,
 207                                         .increment = 0
 208                                 },
 209                                 .digest_size = {
 210                                         .min = 12,
 211                                         .max = 12,
 212                                         .increment = 0
 213                                 },
 214                                 .iv_size = { 0 }
 215                         }, }
 216                 }, }
 217         },
 218         {       /* AES CBC */
 219                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 220                 {.sym = {
 221                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 222                         {.cipher = {
 223                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 224                                 .block_size = 16,
 225                                 .key_size = {
 226                                         .min = 16,
 227                                         .max = 32,
 228                                         .increment = 8
 229                                 },
 230                                 .iv_size = {
 231                                         .min = 16,
 232                                         .max = 16,
 233                                         .increment = 0
 234                                 }
 235                         }, }
 236                 }, }
 237         },
 238         {       /* AES CTR */
 239                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 240                 {.sym = {
 241                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 242                         {.cipher = {
 243                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 244                                 .block_size = 16,
 245                                 .key_size = {
 246                                         .min = 16,
 247                                         .max = 32,
 248                                         .increment = 8
 249                                 },
 250                                 .iv_size = {
 251                                         .min = 12,
 252                                         .max = 16,
 253                                         .increment = 4
 254                                 }
 255                         }, }
 256                 }, }
 257         },
 258         {       /* AES DOCSIS BPI */
 259                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 260                 {.sym = {
 261                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 262                         {.cipher = {
 263                                 .algo = RTE_CRYPTO_CIPHER_AES_DOCSISBPI,
 264                                 .block_size = 16,
 265                                 .key_size = {
 266                                         .min = 16,
 267                                         .max = 16,
 268                                         .increment = 0
 269                                 },
 270                                 .iv_size = {
 271                                         .min = 16,
 272                                         .max = 16,
 273                                         .increment = 0
 274                                 }
 275                         }, }
 276                 }, }
 277         },
 278         {       /* DES CBC */
 279                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 280                 {.sym = {
 281                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 282                         {.cipher = {
 283                                 .algo = RTE_CRYPTO_CIPHER_DES_CBC,
 284                                 .block_size = 8,
 285                                 .key_size = {
 286                                         .min = 8,
 287                                         .max = 8,
 288                                         .increment = 0
 289                                 },
 290                                 .iv_size = {
 291                                         .min = 8,
 292                                         .max = 8,
 293                                         .increment = 0
 294                                 }
 295                         }, }
 296                 }, }
 297         },
 298         {       /*  3DES CBC */
 299                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 300                 {.sym = {
 301                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 302                         {.cipher = {
 303                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 304                                 .block_size = 8,
 305                                 .key_size = {
 306                                         .min = 8,
 307                                         .max = 24,
 308                                         .increment = 8
 309                                 },
 310                                 .iv_size = {
 311                                         .min = 8,
 312                                         .max = 8,
 313                                         .increment = 0
 314                                 }
 315                         }, }
 316                 }, }
 317         },
 318         {       /* DES DOCSIS BPI */
 319                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 320                 {.sym = {
 321                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 322                         {.cipher = {
 323                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 324                                 .block_size = 8,
 325                                 .key_size = {
 326                                         .min = 8,
 327                                         .max = 8,
 328                                         .increment = 0
 329                                 },
 330                                 .iv_size = {
 331                                         .min = 8,
 332                                         .max = 8,
 333                                         .increment = 0
 334                                 }
 335                         }, }
 336                 }, }
 337         },
 338         {       /* AES CCM */
 339                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 340                 {.sym = {
 341                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 342                         {.aead = {
 343                                 .algo = RTE_CRYPTO_AEAD_AES_CCM,
 344                                 .block_size = 16,
 345                                 .key_size = {
 346                                         .min = 16,
 347                                         .max = 16,
 348                                         .increment = 0
 349                                 },
 350                                 .digest_size = {
 351                                         .min = 4,
 352                                         .max = 16,
 353                                         .increment = 2
 354                                 },
 355                                 .aad_size = {
 356                                         .min = 0,
 357                                         .max = 46,
 358                                         .increment = 1
 359                                 },
 360                                 .iv_size = {
 361                                         .min = 7,
 362                                         .max = 13,
 363                                         .increment = 1
 364                                 },
 365                         }, }
 366                 }, }
 367         },
 368         {       /* AES CMAC */
 369                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 370                 {.sym = {
 371                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 372                         {.auth = {
 373                                 .algo = RTE_CRYPTO_AUTH_AES_CMAC,
 374                                 .block_size = 16,
 375                                 .key_size = {
 376                                         .min = 16,
 377                                         .max = 16,
 378                                         .increment = 0
 379                                 },
 380                                 .digest_size = {
 381                                         .min = 1,
 382                                         .max = 16,
 383                                         .increment = 1
 384                                 },
 385                                 .iv_size = { 0 }
 386                         }, }
 387                 }, }
 388         },
 389         {       /* AES GCM */
 390                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 391                 {.sym = {
 392                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 393                         {.aead = {
 394                                 .algo = RTE_CRYPTO_AEAD_AES_GCM,
 395                                 .block_size = 16,
 396                                 .key_size = {
 397                                         .min = 16,
 398                                         .max = 32,
 399                                         .increment = 8
 400                                 },
 401                                 .digest_size = {
 402                                         .min = 8,
 403                                         .max = 16,
 404                                         .increment = 4
 405                                 },
 406                                 .aad_size = {
 407                                         .min = 0,
 408                                         .max = 65535,
 409                                         .increment = 1
 410                                 },
 411                                 .iv_size = {
 412                                         .min = 12,
 413                                         .max = 12,
 414                                         .increment = 0
 415                                 }
 416                         }, }
 417                 }, }
 418         },
 419         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 420 };
 421
 422
 423 /** Configure device */
 424 static int
 425 aesni_mb_pmd_config(__rte_unused struct rte_cryptodev *dev,
 426                 __rte_unused struct rte_cryptodev_config *config)
 427 {
 428         return 0;
 429 }
 430
 431 /** Start device */
 432 static int
 433 aesni_mb_pmd_start(__rte_unused struct rte_cryptodev *dev)
 434 {
 435         return 0;
 436 }
 437
 438 /** Stop device */
 439 static void
 440 aesni_mb_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 441 {
 442 }
 443
 444 /** Close device */
 445 static int
 446 aesni_mb_pmd_close(__rte_unused struct rte_cryptodev *dev)
 447 {
 448         return 0;
 449 }
 450
 451
 452 /** Get device statistics */
 453 static void
 454 aesni_mb_pmd_stats_get(struct rte_cryptodev *dev,
 455                 struct rte_cryptodev_stats *stats)
 456 {
 457         int qp_id;
 458
 459         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 460                 struct aesni_mb_qp *qp = dev->data->queue_pairs[qp_id];
 461
 462                 stats->enqueued_count += qp->stats.enqueued_count;
 463                 stats->dequeued_count += qp->stats.dequeued_count;
 464
 465                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 466                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 467         }
 468 }
 469
 470 /** Reset device statistics */
 471 static void
 472 aesni_mb_pmd_stats_reset(struct rte_cryptodev *dev)
 473 {
 474         int qp_id;
 475
 476         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 477                 struct aesni_mb_qp *qp = dev->data->queue_pairs[qp_id];
 478
 479                 memset(&qp->stats, 0, sizeof(qp->stats));
 480         }
 481 }
 482
 483
 484 /** Get device info */
 485 static void
 486 aesni_mb_pmd_info_get(struct rte_cryptodev *dev,
 487                 struct rte_cryptodev_info *dev_info)
 488 {
 489         struct aesni_mb_private *internals = dev->data->dev_private;
 490
 491         if (dev_info != NULL) {
 492                 dev_info->driver_id = dev->driver_id;
 493                 dev_info->feature_flags = dev->feature_flags;
 494                 dev_info->capabilities = aesni_mb_pmd_capabilities;
 495                 dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
 496                 /* No limit of number of sessions */
 497                 dev_info->sym.max_nb_sessions = 0;
 498         }
 499 }
 500
 501 /** Release queue pair */
 502 static int
 503 aesni_mb_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 504 {
 505         struct aesni_mb_qp *qp = dev->data->queue_pairs[qp_id];
 506         struct rte_ring *r = NULL;
 507
 508         if (qp != NULL) {
 509                 r = rte_ring_lookup(qp->name);
 510                 if (r)
 511                         rte_ring_free(r);
 512                 if (qp->mb_mgr)
 513                         free_mb_mgr(qp->mb_mgr);
 514                 rte_free(qp);
 515                 dev->data->queue_pairs[qp_id] = NULL;
 516         }
 517         return 0;
 518 }
 519
 520 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 521 static int
 522 aesni_mb_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 523                 struct aesni_mb_qp *qp)
 524 {
 525         unsigned n = snprintf(qp->name, sizeof(qp->name),
 526                         "aesni_mb_pmd_%u_qp_%u",
 527                         dev->data->dev_id, qp->id);
 528
 529         if (n >= sizeof(qp->name))
 530                 return -1;
 531
 532         return 0;
 533 }
 534
 535 /** Create a ring to place processed operations on */
 536 static struct rte_ring *
 537 aesni_mb_pmd_qp_create_processed_ops_ring(struct aesni_mb_qp *qp,
 538                 unsigned int ring_size, int socket_id)
 539 {
 540         struct rte_ring *r;
 541         char ring_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 542
 543         unsigned int n = snprintf(ring_name, sizeof(ring_name), "%s", qp->name);
 544
 545         if (n >= sizeof(ring_name))
 546                 return NULL;
 547
 548         r = rte_ring_lookup(ring_name);
 549         if (r) {
 550                 if (rte_ring_get_size(r) >= ring_size) {
 551                         AESNI_MB_LOG(INFO, "Reusing existing ring %s for processed ops",
 552                         ring_name);
 553                         return r;
 554                 }
 555
 556                 AESNI_MB_LOG(ERR, "Unable to reuse existing ring %s for processed ops",
 557                         ring_name);
 558                 return NULL;
 559         }
 560
 561         return rte_ring_create(ring_name, ring_size, socket_id,
 562                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 563 }
 564
 565 /** Setup a queue pair */
 566 static int
 567 aesni_mb_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 568                 const struct rte_cryptodev_qp_conf *qp_conf,
 569                 int socket_id, struct rte_mempool *session_pool)
 570 {
 571         struct aesni_mb_qp *qp = NULL;
 572         struct aesni_mb_private *internals = dev->data->dev_private;
 573         int ret = -1;
 574
 575         /* Free memory prior to re-allocation if needed. */
 576         if (dev->data->queue_pairs[qp_id] != NULL)
 577                 aesni_mb_pmd_qp_release(dev, qp_id);
 578
 579         /* Allocate the queue pair data structure. */
 580         qp = rte_zmalloc_socket("AES-NI PMD Queue Pair", sizeof(*qp),
 581                                         RTE_CACHE_LINE_SIZE, socket_id);
 582         if (qp == NULL)
 583                 return -ENOMEM;
 584
 585         qp->id = qp_id;
 586         dev->data->queue_pairs[qp_id] = qp;
 587
 588         if (aesni_mb_pmd_qp_set_unique_name(dev, qp))
 589                 goto qp_setup_cleanup;
 590
 591
 592         qp->mb_mgr = alloc_mb_mgr(0);
 593         if (qp->mb_mgr == NULL) {
 594                 ret = -ENOMEM;
 595                 goto qp_setup_cleanup;
 596         }
 597
 598         qp->op_fns = &job_ops[internals->vector_mode];
 599
 600         qp->ingress_queue = aesni_mb_pmd_qp_create_processed_ops_ring(qp,
 601                         qp_conf->nb_descriptors, socket_id);
 602         if (qp->ingress_queue == NULL) {
 603                 ret = -1;
 604                 goto qp_setup_cleanup;
 605         }
 606
 607         qp->sess_mp = session_pool;
 608
 609         memset(&qp->stats, 0, sizeof(qp->stats));
 610
 611         char mp_name[RTE_MEMPOOL_NAMESIZE];
 612
 613         snprintf(mp_name, RTE_MEMPOOL_NAMESIZE,
 614                                 "digest_mp_%u_%u", dev->data->dev_id, qp_id);
 615
 616         /* Initialise multi-buffer manager */
 617         (*qp->op_fns->job.init_mgr)(qp->mb_mgr);
 618         return 0;
 619
 620 qp_setup_cleanup:
 621         if (qp) {
 622                 if (qp->mb_mgr == NULL)
 623                         free_mb_mgr(qp->mb_mgr);
 624                 rte_free(qp);
 625         }
 626
 627         return ret;
 628 }
 629
 630 /** Return the number of allocated queue pairs */
 631 static uint32_t
 632 aesni_mb_pmd_qp_count(struct rte_cryptodev *dev)
 633 {
 634         return dev->data->nb_queue_pairs;
 635 }
 636
 637 /** Returns the size of the aesni multi-buffer session structure */
 638 static unsigned
 639 aesni_mb_pmd_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
 640 {
 641         return sizeof(struct aesni_mb_session);
 642 }
 643
 644 /** Configure a aesni multi-buffer session from a crypto xform chain */
 645 static int
 646 aesni_mb_pmd_sym_session_configure(struct rte_cryptodev *dev,
 647                 struct rte_crypto_sym_xform *xform,
 648                 struct rte_cryptodev_sym_session *sess,
 649                 struct rte_mempool *mempool)
 650 {
 651         void *sess_private_data;
 652         struct aesni_mb_private *internals = dev->data->dev_private;
 653         int ret;
 654
 655         if (unlikely(sess == NULL)) {
 656                 AESNI_MB_LOG(ERR, "invalid session struct");
 657                 return -EINVAL;
 658         }
 659
 660         if (rte_mempool_get(mempool, &sess_private_data)) {
 661                 AESNI_MB_LOG(ERR,
 662                                 "Couldn't get object from session mempool");
 663                 return -ENOMEM;
 664         }
 665
 666         ret = aesni_mb_set_session_parameters(&job_ops[internals->vector_mode],
 667                         sess_private_data, xform);
 668         if (ret != 0) {
 669                 AESNI_MB_LOG(ERR, "failed configure session parameters");
 670
 671                 /* Return session to mempool */
 672                 rte_mempool_put(mempool, sess_private_data);
 673                 return ret;
 674         }
 675
 676         set_sym_session_private_data(sess, dev->driver_id,
 677                         sess_private_data);
 678
 679         return 0;
 680 }
 681
 682 /** Clear the memory of session so it doesn't leave key material behind */
 683 static void
 684 aesni_mb_pmd_sym_session_clear(struct rte_cryptodev *dev,
 685                 struct rte_cryptodev_sym_session *sess)
 686 {
 687         uint8_t index = dev->driver_id;
 688         void *sess_priv = get_sym_session_private_data(sess, index);
 689
 690         /* Zero out the whole structure */
 691         if (sess_priv) {
 692                 memset(sess_priv, 0, sizeof(struct aesni_mb_session));
 693                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 694                 set_sym_session_private_data(sess, index, NULL);
 695                 rte_mempool_put(sess_mp, sess_priv);
 696         }
 697 }
 698
 699 struct rte_cryptodev_ops aesni_mb_pmd_ops = {
 700                 .dev_configure          = aesni_mb_pmd_config,
 701                 .dev_start              = aesni_mb_pmd_start,
 702                 .dev_stop               = aesni_mb_pmd_stop,
 703                 .dev_close              = aesni_mb_pmd_close,
 704
 705                 .stats_get              = aesni_mb_pmd_stats_get,
 706                 .stats_reset            = aesni_mb_pmd_stats_reset,
 707
 708                 .dev_infos_get          = aesni_mb_pmd_info_get,
 709
 710                 .queue_pair_setup       = aesni_mb_pmd_qp_setup,
 711                 .queue_pair_release     = aesni_mb_pmd_qp_release,
 712                 .queue_pair_count       = aesni_mb_pmd_qp_count,
 713
 714                 .sym_session_get_size   = aesni_mb_pmd_sym_session_get_size,
 715                 .sym_session_configure  = aesni_mb_pmd_sym_session_configure,
 716                 .sym_session_clear      = aesni_mb_pmd_sym_session_clear
 717 };
 718
 719 struct rte_cryptodev_ops *rte_aesni_mb_pmd_ops = &aesni_mb_pmd_ops;