drivers/crypto/openssl/rte_openssl_pmd_ops.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <string.h>
  34
  35 #include <rte_common.h>
  36 #include <rte_malloc.h>
  37 #include <rte_cryptodev_pmd.h>
  38
  39 #include "rte_openssl_pmd_private.h"
  40
  41
  42 static const struct rte_cryptodev_capabilities openssl_pmd_capabilities[] = {
  43         {       /* MD5 HMAC */
  44                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  45                 {.sym = {
  46                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  47                         {.auth = {
  48                                 .algo = RTE_CRYPTO_AUTH_MD5_HMAC,
  49                                 .block_size = 64,
  50                                 .key_size = {
  51                                         .min = 64,
  52                                         .max = 64,
  53                                         .increment = 0
  54                                 },
  55                                 .digest_size = {
  56                                         .min = 16,
  57                                         .max = 16,
  58                                         .increment = 0
  59                                 },
  60                                 .aad_size = { 0 },
  61                                 .iv_size = { 0 }
  62                         }, }
  63                 }, }
  64         },
  65         {       /* MD5 */
  66                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  67                 {.sym = {
  68                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  69                         {.auth = {
  70                                 .algo = RTE_CRYPTO_AUTH_MD5,
  71                                 .block_size = 64,
  72                                 .key_size = {
  73                                         .min = 0,
  74                                         .max = 0,
  75                                         .increment = 0
  76                                 },
  77                                 .digest_size = {
  78                                         .min = 16,
  79                                         .max = 16,
  80                                         .increment = 0
  81                                 },
  82                                 .aad_size = { 0 },
  83                                 .iv_size = { 0 }
  84                         }, }
  85                 }, }
  86         },
  87         {       /* SHA1 HMAC */
  88                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  89                 {.sym = {
  90                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  91                         {.auth = {
  92                                 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  93                                 .block_size = 64,
  94                                 .key_size = {
  95                                         .min = 64,
  96                                         .max = 64,
  97                                         .increment = 0
  98                                 },
  99                                 .digest_size = {
 100                                         .min = 20,
 101                                         .max = 20,
 102                                         .increment = 0
 103                                 },
 104                                 .aad_size = { 0 },
 105                                 .iv_size = { 0 }
 106                         }, }
 107                 }, }
 108         },
 109         {       /* SHA1 */
 110                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 111                 {.sym = {
 112                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 113                         {.auth = {
 114                                 .algo = RTE_CRYPTO_AUTH_SHA1,
 115                                 .block_size = 64,
 116                                 .key_size = {
 117                                         .min = 0,
 118                                         .max = 0,
 119                                         .increment = 0
 120                                 },
 121                                 .digest_size = {
 122                                         .min = 20,
 123                                         .max = 20,
 124                                         .increment = 0
 125                                 },
 126                                 .aad_size = { 0 },
 127                                 .iv_size = { 0 }
 128                         }, }
 129                 }, }
 130         },
 131         {       /* SHA224 HMAC */
 132                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 133                 {.sym = {
 134                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 135                         {.auth = {
 136                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
 137                                 .block_size = 64,
 138                                 .key_size = {
 139                                         .min = 64,
 140                                         .max = 64,
 141                                         .increment = 0
 142                                 },
 143                                 .digest_size = {
 144                                         .min = 28,
 145                                         .max = 28,
 146                                         .increment = 0
 147                                 },
 148                                 .aad_size = { 0 },
 149                                 .iv_size = { 0 }
 150                         }, }
 151                 }, }
 152         },
 153         {       /* SHA224 */
 154                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 155                 {.sym = {
 156                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 157                         {.auth = {
 158                                 .algo = RTE_CRYPTO_AUTH_SHA224,
 159                                 .block_size = 64,
 160                                 .key_size = {
 161                                         .min = 0,
 162                                         .max = 0,
 163                                         .increment = 0
 164                                 },
 165                                 .digest_size = {
 166                                         .min = 28,
 167                                         .max = 28,
 168                                         .increment = 0
 169                                 },
 170                                 .aad_size = { 0 },
 171                                 .iv_size = { 0 }
 172                         }, }
 173                 }, }
 174         },
 175         {       /* SHA256 HMAC */
 176                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 177                 {.sym = {
 178                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 179                         {.auth = {
 180                                 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 181                                 .block_size = 64,
 182                                 .key_size = {
 183                                         .min = 64,
 184                                         .max = 64,
 185                                         .increment = 0
 186                                 },
 187                                 .digest_size = {
 188                                         .min = 32,
 189                                         .max = 32,
 190                                         .increment = 0
 191                                 },
 192                                 .aad_size = { 0 },
 193                                 .iv_size = { 0 }
 194                         }, }
 195                 }, }
 196         },
 197         {       /* SHA256 */
 198                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 199                 {.sym = {
 200                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 201                         {.auth = {
 202                                 .algo = RTE_CRYPTO_AUTH_SHA256,
 203                                 .block_size = 64,
 204                                 .key_size = {
 205                                         .min = 0,
 206                                         .max = 0,
 207                                         .increment = 0
 208                                 },
 209                                 .digest_size = {
 210                                         .min = 32,
 211                                         .max = 32,
 212                                         .increment = 0
 213                                 },
 214                                 .aad_size = { 0 },
 215                                 .iv_size = { 0 }
 216                         }, }
 217                 }, }
 218         },
 219         {       /* SHA384 HMAC */
 220                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 221                 {.sym = {
 222                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 223                         {.auth = {
 224                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 225                                 .block_size = 128,
 226                                 .key_size = {
 227                                         .min = 128,
 228                                         .max = 128,
 229                                         .increment = 0
 230                                 },
 231                                 .digest_size = {
 232                                         .min = 48,
 233                                         .max = 48,
 234                                         .increment = 0
 235                                 },
 236                                 .aad_size = { 0 },
 237                                 .iv_size = { 0 }
 238                         }, }
 239                 }, }
 240         },
 241         {       /* SHA384 */
 242                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 243                 {.sym = {
 244                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 245                         {.auth = {
 246                                 .algo = RTE_CRYPTO_AUTH_SHA384,
 247                                 .block_size = 128,
 248                                 .key_size = {
 249                                         .min = 0,
 250                                         .max = 0,
 251                                         .increment = 0
 252                                 },
 253                                 .digest_size = {
 254                                         .min = 48,
 255                                         .max = 48,
 256                                         .increment = 0
 257                                 },
 258                                 .aad_size = { 0 },
 259                                 .iv_size = { 0 }
 260                         }, }
 261                 }, }
 262         },
 263         {       /* SHA512 HMAC */
 264                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 265                 {.sym = {
 266                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 267                         {.auth = {
 268                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 269                                 .block_size = 128,
 270                                 .key_size = {
 271                                         .min = 128,
 272                                         .max = 128,
 273                                         .increment = 0
 274                                 },
 275                                 .digest_size = {
 276                                         .min = 64,
 277                                         .max = 64,
 278                                         .increment = 0
 279                                 },
 280                                 .aad_size = { 0 },
 281                                 .iv_size = { 0 }
 282                         }, }
 283                 }, }
 284         },
 285         {       /* SHA512  */
 286                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 287                 {.sym = {
 288                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 289                         {.auth = {
 290                                 .algo = RTE_CRYPTO_AUTH_SHA512,
 291                                 .block_size = 128,
 292                                 .key_size = {
 293                                         .min = 0,
 294                                         .max = 0,
 295                                         .increment = 0
 296                                 },
 297                                 .digest_size = {
 298                                         .min = 64,
 299                                         .max = 64,
 300                                         .increment = 0
 301                                 },
 302                                 .aad_size = { 0 },
 303                                 .iv_size = { 0 }
 304                         }, }
 305                 }, }
 306         },
 307         {       /* AES CBC */
 308                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 309                 {.sym = {
 310                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 311                         {.cipher = {
 312                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 313                                 .block_size = 16,
 314                                 .key_size = {
 315                                         .min = 16,
 316                                         .max = 32,
 317                                         .increment = 8
 318                                 },
 319                                 .iv_size = {
 320                                         .min = 16,
 321                                         .max = 16,
 322                                         .increment = 0
 323                                 }
 324                         }, }
 325                 }, }
 326         },
 327         {       /* AES CTR */
 328                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 329                 {.sym = {
 330                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 331                         {.cipher = {
 332                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 333                                 .block_size = 16,
 334                                 .key_size = {
 335                                         .min = 16,
 336                                         .max = 32,
 337                                         .increment = 8
 338                                 },
 339                                 .iv_size = {
 340                                         .min = 16,
 341                                         .max = 16,
 342                                         .increment = 0
 343                                 }
 344                         }, }
 345                 }, }
 346         },
 347         {       /* AES GCM (AUTH) */
 348                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 349                 {.sym = {
 350                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 351                         {.auth = {
 352                                 .algo = RTE_CRYPTO_AUTH_AES_GCM,
 353                                 .block_size = 16,
 354                                 .key_size = {
 355                                         .min = 16,
 356                                         .max = 32,
 357                                         .increment = 8
 358                                 },
 359                                 .digest_size = {
 360                                         .min = 16,
 361                                         .max = 16,
 362                                         .increment = 0
 363                                 },
 364                                 .aad_size = {
 365                                         .min = 0,
 366                                         .max = 65535,
 367                                         .increment = 1
 368                                 },
 369                                 .iv_size = { 0 }
 370                         }, }
 371                 }, }
 372         },
 373         {       /* AES GCM (CIPHER) */
 374                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 375                 {.sym = {
 376                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 377                         {.cipher = {
 378                                 .algo = RTE_CRYPTO_CIPHER_AES_GCM,
 379                                 .block_size = 16,
 380                                 .key_size = {
 381                                         .min = 16,
 382                                         .max = 32,
 383                                         .increment = 8
 384                                 },
 385                                 .iv_size = {
 386                                         .min = 12,
 387                                         .max = 16,
 388                                         .increment = 4
 389                                 }
 390                         }, }
 391                 }, }
 392         },
 393         {       /* AES GMAC (AUTH) */
 394                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 395                 {.sym = {
 396                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 397                         {.auth = {
 398                                 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
 399                                 .block_size = 16,
 400                                 .key_size = {
 401                                         .min = 16,
 402                                         .max = 32,
 403                                         .increment = 8
 404                                 },
 405                                 .digest_size = {
 406                                         .min = 16,
 407                                         .max = 16,
 408                                         .increment = 0
 409                                 },
 410                                 .iv_size = {
 411                                         .min = 12,
 412                                         .max = 16,
 413                                         .increment = 4
 414                                 }
 415                         }, }
 416                 }, }
 417         },
 418         {       /* 3DES CBC */
 419                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 420                 {.sym = {
 421                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 422                         {.cipher = {
 423                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 424                                 .block_size = 8,
 425                                 .key_size = {
 426                                         .min = 16,
 427                                         .max = 24,
 428                                         .increment = 8
 429                                 },
 430                                 .iv_size = {
 431                                         .min = 8,
 432                                         .max = 8,
 433                                         .increment = 0
 434                                 }
 435                         }, }
 436                 }, }
 437         },
 438         {       /* 3DES CTR */
 439                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 440                 {.sym = {
 441                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 442                         {.cipher = {
 443                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 444                                 .block_size = 8,
 445                                 .key_size = {
 446                                         .min = 16,
 447                                         .max = 24,
 448                                         .increment = 8
 449                                 },
 450                                 .iv_size = {
 451                                         .min = 8,
 452                                         .max = 8,
 453                                         .increment = 0
 454                                 }
 455                         }, }
 456                 }, }
 457         },
 458         {       /* DES DOCSIS BPI */
 459                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 460                 {.sym = {
 461                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 462                         {.cipher = {
 463                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 464                                 .block_size = 8,
 465                                 .key_size = {
 466                                         .min = 8,
 467                                         .max = 8,
 468                                         .increment = 0
 469                                 },
 470                                 .iv_size = {
 471                                         .min = 8,
 472                                         .max = 8,
 473                                         .increment = 0
 474                                 }
 475                         }, }
 476                 }, }
 477         },
 478
 479         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 480 };
 481
 482
 483 /** Configure device */
 484 static int
 485 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 486                 __rte_unused struct rte_cryptodev_config *config)
 487 {
 488         return 0;
 489 }
 490
 491 /** Start device */
 492 static int
 493 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 494 {
 495         return 0;
 496 }
 497
 498 /** Stop device */
 499 static void
 500 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 501 {
 502 }
 503
 504 /** Close device */
 505 static int
 506 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 507 {
 508         return 0;
 509 }
 510
 511
 512 /** Get device statistics */
 513 static void
 514 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 515                 struct rte_cryptodev_stats *stats)
 516 {
 517         int qp_id;
 518
 519         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 520                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 521
 522                 stats->enqueued_count += qp->stats.enqueued_count;
 523                 stats->dequeued_count += qp->stats.dequeued_count;
 524
 525                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 526                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 527         }
 528 }
 529
 530 /** Reset device statistics */
 531 static void
 532 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 533 {
 534         int qp_id;
 535
 536         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 537                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 538
 539                 memset(&qp->stats, 0, sizeof(qp->stats));
 540         }
 541 }
 542
 543
 544 /** Get device info */
 545 static void
 546 openssl_pmd_info_get(struct rte_cryptodev *dev,
 547                 struct rte_cryptodev_info *dev_info)
 548 {
 549         struct openssl_private *internals = dev->data->dev_private;
 550
 551         if (dev_info != NULL) {
 552                 dev_info->dev_type = dev->dev_type;
 553                 dev_info->feature_flags = dev->feature_flags;
 554                 dev_info->capabilities = openssl_pmd_capabilities;
 555                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 556                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 557         }
 558 }
 559
 560 /** Release queue pair */
 561 static int
 562 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 563 {
 564         if (dev->data->queue_pairs[qp_id] != NULL) {
 565                 rte_free(dev->data->queue_pairs[qp_id]);
 566                 dev->data->queue_pairs[qp_id] = NULL;
 567         }
 568         return 0;
 569 }
 570
 571 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 572 static int
 573 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 574                 struct openssl_qp *qp)
 575 {
 576         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 577                         "openssl_pmd_%u_qp_%u",
 578                         dev->data->dev_id, qp->id);
 579
 580         if (n > sizeof(qp->name))
 581                 return -1;
 582
 583         return 0;
 584 }
 585
 586
 587 /** Create a ring to place processed operations on */
 588 static struct rte_ring *
 589 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 590                 unsigned int ring_size, int socket_id)
 591 {
 592         struct rte_ring *r;
 593
 594         r = rte_ring_lookup(qp->name);
 595         if (r) {
 596                 if (rte_ring_get_size(r) >= ring_size) {
 597                         OPENSSL_LOG_INFO(
 598                                 "Reusing existing ring %s for processed ops",
 599                                  qp->name);
 600                         return r;
 601                 }
 602
 603                 OPENSSL_LOG_ERR(
 604                         "Unable to reuse existing ring %s for processed ops",
 605                          qp->name);
 606                 return NULL;
 607         }
 608
 609         return rte_ring_create(qp->name, ring_size, socket_id,
 610                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 611 }
 612
 613
 614 /** Setup a queue pair */
 615 static int
 616 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 617                 const struct rte_cryptodev_qp_conf *qp_conf,
 618                  int socket_id)
 619 {
 620         struct openssl_qp *qp = NULL;
 621
 622         /* Free memory prior to re-allocation if needed. */
 623         if (dev->data->queue_pairs[qp_id] != NULL)
 624                 openssl_pmd_qp_release(dev, qp_id);
 625
 626         /* Allocate the queue pair data structure. */
 627         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 628                                         RTE_CACHE_LINE_SIZE, socket_id);
 629         if (qp == NULL)
 630                 return -ENOMEM;
 631
 632         qp->id = qp_id;
 633         dev->data->queue_pairs[qp_id] = qp;
 634
 635         if (openssl_pmd_qp_set_unique_name(dev, qp))
 636                 goto qp_setup_cleanup;
 637
 638         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 639                         qp_conf->nb_descriptors, socket_id);
 640         if (qp->processed_ops == NULL)
 641                 goto qp_setup_cleanup;
 642
 643         qp->sess_mp = dev->data->session_pool;
 644
 645         memset(&qp->stats, 0, sizeof(qp->stats));
 646
 647         return 0;
 648
 649 qp_setup_cleanup:
 650         if (qp)
 651                 rte_free(qp);
 652
 653         return -1;
 654 }
 655
 656 /** Start queue pair */
 657 static int
 658 openssl_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
 659                 __rte_unused uint16_t queue_pair_id)
 660 {
 661         return -ENOTSUP;
 662 }
 663
 664 /** Stop queue pair */
 665 static int
 666 openssl_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
 667                 __rte_unused uint16_t queue_pair_id)
 668 {
 669         return -ENOTSUP;
 670 }
 671
 672 /** Return the number of allocated queue pairs */
 673 static uint32_t
 674 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 675 {
 676         return dev->data->nb_queue_pairs;
 677 }
 678
 679 /** Returns the size of the session structure */
 680 static unsigned
 681 openssl_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 682 {
 683         return sizeof(struct openssl_session);
 684 }
 685
 686 /** Configure the session from a crypto xform chain */
 687 static void *
 688 openssl_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
 689                 struct rte_crypto_sym_xform *xform,     void *sess)
 690 {
 691         if (unlikely(sess == NULL)) {
 692                 OPENSSL_LOG_ERR("invalid session struct");
 693                 return NULL;
 694         }
 695
 696         if (openssl_set_session_parameters(
 697                         sess, xform) != 0) {
 698                 OPENSSL_LOG_ERR("failed configure session parameters");
 699                 return NULL;
 700         }
 701
 702         return sess;
 703 }
 704
 705
 706 /** Clear the memory of session so it doesn't leave key material behind */
 707 static void
 708 openssl_pmd_session_clear(struct rte_cryptodev *dev __rte_unused, void *sess)
 709 {
 710         /*
 711          * Current just resetting the whole data structure, need to investigate
 712          * whether a more selective reset of key would be more performant
 713          */
 714         if (sess) {
 715                 openssl_reset_session(sess);
 716                 memset(sess, 0, sizeof(struct openssl_session));
 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_start       = openssl_pmd_qp_start,
 734                 .queue_pair_stop        = openssl_pmd_qp_stop,
 735                 .queue_pair_count       = openssl_pmd_qp_count,
 736
 737                 .session_get_size       = openssl_pmd_session_get_size,
 738                 .session_configure      = openssl_pmd_session_configure,
 739                 .session_clear          = openssl_pmd_session_clear
 740 };
 741
 742 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;