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                                 .aad_size = {
 411                                         .min = 8,
 412                                         .max = 65532,
 413                                         .increment = 4
 414                                 },
 415                                 .iv_size = { 0 }
 416                         }, }
 417                 }, }
 418         },
 419         {       /* 3DES CBC */
 420                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 421                 {.sym = {
 422                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 423                         {.cipher = {
 424                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 425                                 .block_size = 8,
 426                                 .key_size = {
 427                                         .min = 16,
 428                                         .max = 24,
 429                                         .increment = 8
 430                                 },
 431                                 .iv_size = {
 432                                         .min = 8,
 433                                         .max = 8,
 434                                         .increment = 0
 435                                 }
 436                         }, }
 437                 }, }
 438         },
 439         {       /* 3DES CTR */
 440                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 441                 {.sym = {
 442                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 443                         {.cipher = {
 444                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 445                                 .block_size = 8,
 446                                 .key_size = {
 447                                         .min = 16,
 448                                         .max = 24,
 449                                         .increment = 8
 450                                 },
 451                                 .iv_size = {
 452                                         .min = 8,
 453                                         .max = 8,
 454                                         .increment = 0
 455                                 }
 456                         }, }
 457                 }, }
 458         },
 459         {       /* DES DOCSIS BPI */
 460                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 461                 {.sym = {
 462                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 463                         {.cipher = {
 464                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 465                                 .block_size = 8,
 466                                 .key_size = {
 467                                         .min = 8,
 468                                         .max = 8,
 469                                         .increment = 0
 470                                 },
 471                                 .iv_size = {
 472                                         .min = 8,
 473                                         .max = 8,
 474                                         .increment = 0
 475                                 }
 476                         }, }
 477                 }, }
 478         },
 479
 480         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 481 };
 482
 483
 484 /** Configure device */
 485 static int
 486 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 487                 __rte_unused struct rte_cryptodev_config *config)
 488 {
 489         return 0;
 490 }
 491
 492 /** Start device */
 493 static int
 494 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 495 {
 496         return 0;
 497 }
 498
 499 /** Stop device */
 500 static void
 501 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 502 {
 503 }
 504
 505 /** Close device */
 506 static int
 507 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 508 {
 509         return 0;
 510 }
 511
 512
 513 /** Get device statistics */
 514 static void
 515 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 516                 struct rte_cryptodev_stats *stats)
 517 {
 518         int qp_id;
 519
 520         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 521                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 522
 523                 stats->enqueued_count += qp->stats.enqueued_count;
 524                 stats->dequeued_count += qp->stats.dequeued_count;
 525
 526                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 527                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 528         }
 529 }
 530
 531 /** Reset device statistics */
 532 static void
 533 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 534 {
 535         int qp_id;
 536
 537         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 538                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 539
 540                 memset(&qp->stats, 0, sizeof(qp->stats));
 541         }
 542 }
 543
 544
 545 /** Get device info */
 546 static void
 547 openssl_pmd_info_get(struct rte_cryptodev *dev,
 548                 struct rte_cryptodev_info *dev_info)
 549 {
 550         struct openssl_private *internals = dev->data->dev_private;
 551
 552         if (dev_info != NULL) {
 553                 dev_info->dev_type = dev->dev_type;
 554                 dev_info->feature_flags = dev->feature_flags;
 555                 dev_info->capabilities = openssl_pmd_capabilities;
 556                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 557                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 558         }
 559 }
 560
 561 /** Release queue pair */
 562 static int
 563 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 564 {
 565         if (dev->data->queue_pairs[qp_id] != NULL) {
 566                 rte_free(dev->data->queue_pairs[qp_id]);
 567                 dev->data->queue_pairs[qp_id] = NULL;
 568         }
 569         return 0;
 570 }
 571
 572 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 573 static int
 574 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 575                 struct openssl_qp *qp)
 576 {
 577         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 578                         "openssl_pmd_%u_qp_%u",
 579                         dev->data->dev_id, qp->id);
 580
 581         if (n > sizeof(qp->name))
 582                 return -1;
 583
 584         return 0;
 585 }
 586
 587
 588 /** Create a ring to place processed operations on */
 589 static struct rte_ring *
 590 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 591                 unsigned int ring_size, int socket_id)
 592 {
 593         struct rte_ring *r;
 594
 595         r = rte_ring_lookup(qp->name);
 596         if (r) {
 597                 if (rte_ring_get_size(r) >= ring_size) {
 598                         OPENSSL_LOG_INFO(
 599                                 "Reusing existing ring %s for processed ops",
 600                                  qp->name);
 601                         return r;
 602                 }
 603
 604                 OPENSSL_LOG_ERR(
 605                         "Unable to reuse existing ring %s for processed ops",
 606                          qp->name);
 607                 return NULL;
 608         }
 609
 610         return rte_ring_create(qp->name, ring_size, socket_id,
 611                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 612 }
 613
 614
 615 /** Setup a queue pair */
 616 static int
 617 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 618                 const struct rte_cryptodev_qp_conf *qp_conf,
 619                  int socket_id)
 620 {
 621         struct openssl_qp *qp = NULL;
 622
 623         /* Free memory prior to re-allocation if needed. */
 624         if (dev->data->queue_pairs[qp_id] != NULL)
 625                 openssl_pmd_qp_release(dev, qp_id);
 626
 627         /* Allocate the queue pair data structure. */
 628         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 629                                         RTE_CACHE_LINE_SIZE, socket_id);
 630         if (qp == NULL)
 631                 return -ENOMEM;
 632
 633         qp->id = qp_id;
 634         dev->data->queue_pairs[qp_id] = qp;
 635
 636         if (openssl_pmd_qp_set_unique_name(dev, qp))
 637                 goto qp_setup_cleanup;
 638
 639         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 640                         qp_conf->nb_descriptors, socket_id);
 641         if (qp->processed_ops == NULL)
 642                 goto qp_setup_cleanup;
 643
 644         qp->sess_mp = dev->data->session_pool;
 645
 646         memset(&qp->stats, 0, sizeof(qp->stats));
 647
 648         return 0;
 649
 650 qp_setup_cleanup:
 651         if (qp)
 652                 rte_free(qp);
 653
 654         return -1;
 655 }
 656
 657 /** Start queue pair */
 658 static int
 659 openssl_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
 660                 __rte_unused uint16_t queue_pair_id)
 661 {
 662         return -ENOTSUP;
 663 }
 664
 665 /** Stop queue pair */
 666 static int
 667 openssl_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
 668                 __rte_unused uint16_t queue_pair_id)
 669 {
 670         return -ENOTSUP;
 671 }
 672
 673 /** Return the number of allocated queue pairs */
 674 static uint32_t
 675 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 676 {
 677         return dev->data->nb_queue_pairs;
 678 }
 679
 680 /** Returns the size of the session structure */
 681 static unsigned
 682 openssl_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 683 {
 684         return sizeof(struct openssl_session);
 685 }
 686
 687 /** Configure the session from a crypto xform chain */
 688 static void *
 689 openssl_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
 690                 struct rte_crypto_sym_xform *xform,     void *sess)
 691 {
 692         if (unlikely(sess == NULL)) {
 693                 OPENSSL_LOG_ERR("invalid session struct");
 694                 return NULL;
 695         }
 696
 697         if (openssl_set_session_parameters(
 698                         sess, xform) != 0) {
 699                 OPENSSL_LOG_ERR("failed configure session parameters");
 700                 return NULL;
 701         }
 702
 703         return sess;
 704 }
 705
 706
 707 /** Clear the memory of session so it doesn't leave key material behind */
 708 static void
 709 openssl_pmd_session_clear(struct rte_cryptodev *dev __rte_unused, void *sess)
 710 {
 711         /*
 712          * Current just resetting the whole data structure, need to investigate
 713          * whether a more selective reset of key would be more performant
 714          */
 715         if (sess) {
 716                 openssl_reset_session(sess);
 717                 memset(sess, 0, sizeof(struct openssl_session));
 718         }
 719 }
 720
 721 struct rte_cryptodev_ops openssl_pmd_ops = {
 722                 .dev_configure          = openssl_pmd_config,
 723                 .dev_start              = openssl_pmd_start,
 724                 .dev_stop               = openssl_pmd_stop,
 725                 .dev_close              = openssl_pmd_close,
 726
 727                 .stats_get              = openssl_pmd_stats_get,
 728                 .stats_reset            = openssl_pmd_stats_reset,
 729
 730                 .dev_infos_get          = openssl_pmd_info_get,
 731
 732                 .queue_pair_setup       = openssl_pmd_qp_setup,
 733                 .queue_pair_release     = openssl_pmd_qp_release,
 734                 .queue_pair_start       = openssl_pmd_qp_start,
 735                 .queue_pair_stop        = openssl_pmd_qp_stop,
 736                 .queue_pair_count       = openssl_pmd_qp_count,
 737
 738                 .session_get_size       = openssl_pmd_session_get_size,
 739                 .session_configure      = openssl_pmd_session_configure,
 740                 .session_clear          = openssl_pmd_session_clear
 741 };
 742
 743 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;