drivers/crypto/openssl/rte_openssl_pmd_ops.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 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_openssl_pmd_private.h"
  12
  13
  14 static const struct rte_cryptodev_capabilities openssl_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                                         .min = 16,
  29                                         .max = 16,
  30                                         .increment = 0
  31                                 },
  32                                 .iv_size = { 0 }
  33                         }, }
  34                 }, }
  35         },
  36         {       /* MD5 */
  37                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  38                 {.sym = {
  39                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  40                         {.auth = {
  41                                 .algo = RTE_CRYPTO_AUTH_MD5,
  42                                 .block_size = 64,
  43                                 .key_size = {
  44                                         .min = 0,
  45                                         .max = 0,
  46                                         .increment = 0
  47                                 },
  48                                 .digest_size = {
  49                                         .min = 16,
  50                                         .max = 16,
  51                                         .increment = 0
  52                                 },
  53                                 .iv_size = { 0 }
  54                         }, }
  55                 }, }
  56         },
  57         {       /* SHA1 HMAC */
  58                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  59                 {.sym = {
  60                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  61                         {.auth = {
  62                                 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  63                                 .block_size = 64,
  64                                 .key_size = {
  65                                         .min = 1,
  66                                         .max = 64,
  67                                         .increment = 1
  68                                 },
  69                                 .digest_size = {
  70                                         .min = 20,
  71                                         .max = 20,
  72                                         .increment = 0
  73                                 },
  74                                 .iv_size = { 0 }
  75                         }, }
  76                 }, }
  77         },
  78         {       /* SHA1 */
  79                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  80                 {.sym = {
  81                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  82                         {.auth = {
  83                                 .algo = RTE_CRYPTO_AUTH_SHA1,
  84                                 .block_size = 64,
  85                                 .key_size = {
  86                                         .min = 0,
  87                                         .max = 0,
  88                                         .increment = 0
  89                                 },
  90                                 .digest_size = {
  91                                         .min = 20,
  92                                         .max = 20,
  93                                         .increment = 0
  94                                 },
  95                                 .iv_size = { 0 }
  96                         }, }
  97                 }, }
  98         },
  99         {       /* SHA224 HMAC */
 100                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 101                 {.sym = {
 102                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 103                         {.auth = {
 104                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
 105                                 .block_size = 64,
 106                                 .key_size = {
 107                                         .min = 1,
 108                                         .max = 64,
 109                                         .increment = 1
 110                                 },
 111                                 .digest_size = {
 112                                         .min = 28,
 113                                         .max = 28,
 114                                         .increment = 0
 115                                 },
 116                                 .iv_size = { 0 }
 117                         }, }
 118                 }, }
 119         },
 120         {       /* SHA224 */
 121                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 122                 {.sym = {
 123                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 124                         {.auth = {
 125                                 .algo = RTE_CRYPTO_AUTH_SHA224,
 126                                 .block_size = 64,
 127                                 .key_size = {
 128                                         .min = 0,
 129                                         .max = 0,
 130                                         .increment = 0
 131                                 },
 132                                 .digest_size = {
 133                                         .min = 28,
 134                                         .max = 28,
 135                                         .increment = 0
 136                                 },
 137                                 .iv_size = { 0 }
 138                         }, }
 139                 }, }
 140         },
 141         {       /* SHA256 HMAC */
 142                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 143                 {.sym = {
 144                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 145                         {.auth = {
 146                                 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 147                                 .block_size = 64,
 148                                 .key_size = {
 149                                         .min = 1,
 150                                         .max = 64,
 151                                         .increment = 1
 152                                 },
 153                                 .digest_size = {
 154                                         .min = 32,
 155                                         .max = 32,
 156                                         .increment = 0
 157                                 },
 158                                 .iv_size = { 0 }
 159                         }, }
 160                 }, }
 161         },
 162         {       /* SHA256 */
 163                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 164                 {.sym = {
 165                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 166                         {.auth = {
 167                                 .algo = RTE_CRYPTO_AUTH_SHA256,
 168                                 .block_size = 64,
 169                                 .key_size = {
 170                                         .min = 0,
 171                                         .max = 0,
 172                                         .increment = 0
 173                                 },
 174                                 .digest_size = {
 175                                         .min = 32,
 176                                         .max = 32,
 177                                         .increment = 0
 178                                 },
 179                                 .iv_size = { 0 }
 180                         }, }
 181                 }, }
 182         },
 183         {       /* SHA384 HMAC */
 184                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 185                 {.sym = {
 186                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 187                         {.auth = {
 188                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 189                                 .block_size = 128,
 190                                 .key_size = {
 191                                         .min = 1,
 192                                         .max = 128,
 193                                         .increment = 1
 194                                 },
 195                                 .digest_size = {
 196                                         .min = 48,
 197                                         .max = 48,
 198                                         .increment = 0
 199                                 },
 200                                 .iv_size = { 0 }
 201                         }, }
 202                 }, }
 203         },
 204         {       /* SHA384 */
 205                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 206                 {.sym = {
 207                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 208                         {.auth = {
 209                                 .algo = RTE_CRYPTO_AUTH_SHA384,
 210                                 .block_size = 128,
 211                                 .key_size = {
 212                                         .min = 0,
 213                                         .max = 0,
 214                                         .increment = 0
 215                                 },
 216                                 .digest_size = {
 217                                         .min = 48,
 218                                         .max = 48,
 219                                         .increment = 0
 220                                 },
 221                                 .iv_size = { 0 }
 222                         }, }
 223                 }, }
 224         },
 225         {       /* SHA512 HMAC */
 226                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 227                 {.sym = {
 228                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 229                         {.auth = {
 230                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 231                                 .block_size = 128,
 232                                 .key_size = {
 233                                         .min = 1,
 234                                         .max = 128,
 235                                         .increment = 1
 236                                 },
 237                                 .digest_size = {
 238                                         .min = 64,
 239                                         .max = 64,
 240                                         .increment = 0
 241                                 },
 242                                 .iv_size = { 0 }
 243                         }, }
 244                 }, }
 245         },
 246         {       /* SHA512  */
 247                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 248                 {.sym = {
 249                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 250                         {.auth = {
 251                                 .algo = RTE_CRYPTO_AUTH_SHA512,
 252                                 .block_size = 128,
 253                                 .key_size = {
 254                                         .min = 0,
 255                                         .max = 0,
 256                                         .increment = 0
 257                                 },
 258                                 .digest_size = {
 259                                         .min = 64,
 260                                         .max = 64,
 261                                         .increment = 0
 262                                 },
 263                                 .iv_size = { 0 }
 264                         }, }
 265                 }, }
 266         },
 267         {       /* AES CBC */
 268                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 269                 {.sym = {
 270                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 271                         {.cipher = {
 272                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 273                                 .block_size = 16,
 274                                 .key_size = {
 275                                         .min = 16,
 276                                         .max = 32,
 277                                         .increment = 8
 278                                 },
 279                                 .iv_size = {
 280                                         .min = 16,
 281                                         .max = 16,
 282                                         .increment = 0
 283                                 }
 284                         }, }
 285                 }, }
 286         },
 287         {       /* AES CTR */
 288                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 289                 {.sym = {
 290                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 291                         {.cipher = {
 292                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 293                                 .block_size = 16,
 294                                 .key_size = {
 295                                         .min = 16,
 296                                         .max = 32,
 297                                         .increment = 8
 298                                 },
 299                                 .iv_size = {
 300                                         .min = 16,
 301                                         .max = 16,
 302                                         .increment = 0
 303                                 }
 304                         }, }
 305                 }, }
 306         },
 307         {       /* AES GCM */
 308                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 309                 {.sym = {
 310                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 311                         {.aead = {
 312                                 .algo = RTE_CRYPTO_AEAD_AES_GCM,
 313                                 .block_size = 16,
 314                                 .key_size = {
 315                                         .min = 16,
 316                                         .max = 32,
 317                                         .increment = 8
 318                                 },
 319                                 .digest_size = {
 320                                         .min = 16,
 321                                         .max = 16,
 322                                         .increment = 0
 323                                 },
 324                                 .aad_size = {
 325                                         .min = 0,
 326                                         .max = 65535,
 327                                         .increment = 1
 328                                 },
 329                                 .iv_size = {
 330                                         .min = 12,
 331                                         .max = 16,
 332                                         .increment = 4
 333                                 },
 334                         }, }
 335                 }, }
 336         },
 337         {       /* AES CCM */
 338                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 339                 {.sym = {
 340                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 341                         {.aead = {
 342                                 .algo = RTE_CRYPTO_AEAD_AES_CCM,
 343                                 .block_size = 16,
 344                                 .key_size = {
 345                                         .min = 16,
 346                                         .max = 32,
 347                                         .increment = 8
 348                                 },
 349                                 .digest_size = {
 350                                         .min = 4,
 351                                         .max = 16,
 352                                         .increment = 2
 353                                 },
 354                                 .aad_size = {
 355                                         .min = 0,
 356                                         .max = 65535,
 357                                         .increment = 1
 358                                 },
 359                                 .iv_size = {
 360                                         .min = 7,
 361                                         .max = 13,
 362                                         .increment = 1
 363                                 },
 364                         }, }
 365                 }, }
 366         },
 367         {       /* AES GMAC (AUTH) */
 368                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 369                 {.sym = {
 370                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 371                         {.auth = {
 372                                 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
 373                                 .block_size = 16,
 374                                 .key_size = {
 375                                         .min = 16,
 376                                         .max = 32,
 377                                         .increment = 8
 378                                 },
 379                                 .digest_size = {
 380                                         .min = 16,
 381                                         .max = 16,
 382                                         .increment = 0
 383                                 },
 384                                 .iv_size = {
 385                                         .min = 12,
 386                                         .max = 16,
 387                                         .increment = 4
 388                                 }
 389                         }, }
 390                 }, }
 391         },
 392         {       /* 3DES CBC */
 393                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 394                 {.sym = {
 395                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 396                         {.cipher = {
 397                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 398                                 .block_size = 8,
 399                                 .key_size = {
 400                                         .min = 8,
 401                                         .max = 24,
 402                                         .increment = 8
 403                                 },
 404                                 .iv_size = {
 405                                         .min = 8,
 406                                         .max = 8,
 407                                         .increment = 0
 408                                 }
 409                         }, }
 410                 }, }
 411         },
 412         {       /* 3DES CTR */
 413                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 414                 {.sym = {
 415                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 416                         {.cipher = {
 417                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 418                                 .block_size = 8,
 419                                 .key_size = {
 420                                         .min = 16,
 421                                         .max = 24,
 422                                         .increment = 8
 423                                 },
 424                                 .iv_size = {
 425                                         .min = 8,
 426                                         .max = 8,
 427                                         .increment = 0
 428                                 }
 429                         }, }
 430                 }, }
 431         },
 432         {       /* DES CBC */
 433                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 434                 {.sym = {
 435                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 436                         {.cipher = {
 437                                 .algo = RTE_CRYPTO_CIPHER_DES_CBC,
 438                                 .block_size = 8,
 439                                 .key_size = {
 440                                         .min = 8,
 441                                         .max = 8,
 442                                         .increment = 0
 443                                 },
 444                                 .iv_size = {
 445                                         .min = 8,
 446                                         .max = 8,
 447                                         .increment = 0
 448                                 }
 449                         }, }
 450                 }, }
 451         },
 452         {       /* DES DOCSIS BPI */
 453                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 454                 {.sym = {
 455                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 456                         {.cipher = {
 457                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 458                                 .block_size = 8,
 459                                 .key_size = {
 460                                         .min = 8,
 461                                         .max = 8,
 462                                         .increment = 0
 463                                 },
 464                                 .iv_size = {
 465                                         .min = 8,
 466                                         .max = 8,
 467                                         .increment = 0
 468                                 }
 469                         }, }
 470                 }, }
 471         },
 472
 473         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 474 };
 475
 476
 477 /** Configure device */
 478 static int
 479 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 480                 __rte_unused struct rte_cryptodev_config *config)
 481 {
 482         return 0;
 483 }
 484
 485 /** Start device */
 486 static int
 487 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 488 {
 489         return 0;
 490 }
 491
 492 /** Stop device */
 493 static void
 494 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 495 {
 496 }
 497
 498 /** Close device */
 499 static int
 500 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 501 {
 502         return 0;
 503 }
 504
 505
 506 /** Get device statistics */
 507 static void
 508 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 509                 struct rte_cryptodev_stats *stats)
 510 {
 511         int qp_id;
 512
 513         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 514                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 515
 516                 stats->enqueued_count += qp->stats.enqueued_count;
 517                 stats->dequeued_count += qp->stats.dequeued_count;
 518
 519                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 520                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 521         }
 522 }
 523
 524 /** Reset device statistics */
 525 static void
 526 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 527 {
 528         int qp_id;
 529
 530         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 531                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 532
 533                 memset(&qp->stats, 0, sizeof(qp->stats));
 534         }
 535 }
 536
 537
 538 /** Get device info */
 539 static void
 540 openssl_pmd_info_get(struct rte_cryptodev *dev,
 541                 struct rte_cryptodev_info *dev_info)
 542 {
 543         struct openssl_private *internals = dev->data->dev_private;
 544
 545         if (dev_info != NULL) {
 546                 dev_info->driver_id = dev->driver_id;
 547                 dev_info->feature_flags = dev->feature_flags;
 548                 dev_info->capabilities = openssl_pmd_capabilities;
 549                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 550                 /* No limit of number of sessions */
 551                 dev_info->sym.max_nb_sessions = 0;
 552         }
 553 }
 554
 555 /** Release queue pair */
 556 static int
 557 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 558 {
 559         if (dev->data->queue_pairs[qp_id] != NULL) {
 560                 rte_free(dev->data->queue_pairs[qp_id]);
 561                 dev->data->queue_pairs[qp_id] = NULL;
 562         }
 563         return 0;
 564 }
 565
 566 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 567 static int
 568 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 569                 struct openssl_qp *qp)
 570 {
 571         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 572                         "openssl_pmd_%u_qp_%u",
 573                         dev->data->dev_id, qp->id);
 574
 575         if (n >= sizeof(qp->name))
 576                 return -1;
 577
 578         return 0;
 579 }
 580
 581
 582 /** Create a ring to place processed operations on */
 583 static struct rte_ring *
 584 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 585                 unsigned int ring_size, int socket_id)
 586 {
 587         struct rte_ring *r;
 588
 589         r = rte_ring_lookup(qp->name);
 590         if (r) {
 591                 if (rte_ring_get_size(r) >= ring_size) {
 592                         OPENSSL_LOG(INFO,
 593                                         "Reusing existing ring %s for processed ops",
 594                                  qp->name);
 595                         return r;
 596                 }
 597
 598                 OPENSSL_LOG(ERR,
 599                                 "Unable to reuse existing ring %s for processed ops",
 600                          qp->name);
 601                 return NULL;
 602         }
 603
 604         return rte_ring_create(qp->name, ring_size, socket_id,
 605                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 606 }
 607
 608
 609 /** Setup a queue pair */
 610 static int
 611 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 612                 const struct rte_cryptodev_qp_conf *qp_conf,
 613                 int socket_id, struct rte_mempool *session_pool)
 614 {
 615         struct openssl_qp *qp = NULL;
 616
 617         /* Free memory prior to re-allocation if needed. */
 618         if (dev->data->queue_pairs[qp_id] != NULL)
 619                 openssl_pmd_qp_release(dev, qp_id);
 620
 621         /* Allocate the queue pair data structure. */
 622         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 623                                         RTE_CACHE_LINE_SIZE, socket_id);
 624         if (qp == NULL)
 625                 return -ENOMEM;
 626
 627         qp->id = qp_id;
 628         dev->data->queue_pairs[qp_id] = qp;
 629
 630         if (openssl_pmd_qp_set_unique_name(dev, qp))
 631                 goto qp_setup_cleanup;
 632
 633         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 634                         qp_conf->nb_descriptors, socket_id);
 635         if (qp->processed_ops == NULL)
 636                 goto qp_setup_cleanup;
 637
 638         qp->sess_mp = session_pool;
 639
 640         memset(&qp->stats, 0, sizeof(qp->stats));
 641
 642         return 0;
 643
 644 qp_setup_cleanup:
 645         if (qp)
 646                 rte_free(qp);
 647
 648         return -1;
 649 }
 650
 651 /** Return the number of allocated queue pairs */
 652 static uint32_t
 653 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 654 {
 655         return dev->data->nb_queue_pairs;
 656 }
 657
 658 /** Returns the size of the session structure */
 659 static unsigned
 660 openssl_pmd_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
 661 {
 662         return sizeof(struct openssl_session);
 663 }
 664
 665 /** Configure the session from a crypto xform chain */
 666 static int
 667 openssl_pmd_sym_session_configure(struct rte_cryptodev *dev __rte_unused,
 668                 struct rte_crypto_sym_xform *xform,
 669                 struct rte_cryptodev_sym_session *sess,
 670                 struct rte_mempool *mempool)
 671 {
 672         void *sess_private_data;
 673         int ret;
 674
 675         if (unlikely(sess == NULL)) {
 676                 OPENSSL_LOG(ERR, "invalid session struct");
 677                 return -EINVAL;
 678         }
 679
 680         if (rte_mempool_get(mempool, &sess_private_data)) {
 681                 OPENSSL_LOG(ERR,
 682                         "Couldn't get object from session mempool");
 683                 return -ENOMEM;
 684         }
 685
 686         ret = openssl_set_session_parameters(sess_private_data, xform);
 687         if (ret != 0) {
 688                 OPENSSL_LOG(ERR, "failed configure session parameters");
 689
 690                 /* Return session to mempool */
 691                 rte_mempool_put(mempool, sess_private_data);
 692                 return ret;
 693         }
 694
 695         set_sym_session_private_data(sess, dev->driver_id,
 696                         sess_private_data);
 697
 698         return 0;
 699 }
 700
 701
 702 /** Clear the memory of session so it doesn't leave key material behind */
 703 static void
 704 openssl_pmd_sym_session_clear(struct rte_cryptodev *dev,
 705                 struct rte_cryptodev_sym_session *sess)
 706 {
 707         uint8_t index = dev->driver_id;
 708         void *sess_priv = get_sym_session_private_data(sess, index);
 709
 710         /* Zero out the whole structure */
 711         if (sess_priv) {
 712                 openssl_reset_session(sess_priv);
 713                 memset(sess_priv, 0, sizeof(struct openssl_session));
 714                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 715                 set_sym_session_private_data(sess, index, NULL);
 716                 rte_mempool_put(sess_mp, sess_priv);
 717         }
 718 }
 719
 720 struct rte_cryptodev_ops openssl_pmd_ops = {
 721                 .dev_configure          = openssl_pmd_config,
 722                 .dev_start              = openssl_pmd_start,
 723                 .dev_stop               = openssl_pmd_stop,
 724                 .dev_close              = openssl_pmd_close,
 725
 726                 .stats_get              = openssl_pmd_stats_get,
 727                 .stats_reset            = openssl_pmd_stats_reset,
 728
 729                 .dev_infos_get          = openssl_pmd_info_get,
 730
 731                 .queue_pair_setup       = openssl_pmd_qp_setup,
 732                 .queue_pair_release     = openssl_pmd_qp_release,
 733                 .queue_pair_count       = openssl_pmd_qp_count,
 734
 735                 .sym_session_get_size   = openssl_pmd_sym_session_get_size,
 736                 .sym_session_configure  = openssl_pmd_sym_session_configure,
 737                 .sym_session_clear      = openssl_pmd_sym_session_clear
 738 };
 739
 740 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;