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 = 1,
  52                                         .max = 64,
  53                                         .increment = 1
  54                                 },
  55                                 .digest_size = {
  56                                         .min = 16,
  57                                         .max = 16,
  58                                         .increment = 0
  59                                 },
  60                                 .iv_size = { 0 }
  61                         }, }
  62                 }, }
  63         },
  64         {       /* MD5 */
  65                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  66                 {.sym = {
  67                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  68                         {.auth = {
  69                                 .algo = RTE_CRYPTO_AUTH_MD5,
  70                                 .block_size = 64,
  71                                 .key_size = {
  72                                         .min = 0,
  73                                         .max = 0,
  74                                         .increment = 0
  75                                 },
  76                                 .digest_size = {
  77                                         .min = 16,
  78                                         .max = 16,
  79                                         .increment = 0
  80                                 },
  81                                 .iv_size = { 0 }
  82                         }, }
  83                 }, }
  84         },
  85         {       /* SHA1 HMAC */
  86                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  87                 {.sym = {
  88                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  89                         {.auth = {
  90                                 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  91                                 .block_size = 64,
  92                                 .key_size = {
  93                                         .min = 1,
  94                                         .max = 64,
  95                                         .increment = 1
  96                                 },
  97                                 .digest_size = {
  98                                         .min = 20,
  99                                         .max = 20,
 100                                         .increment = 0
 101                                 },
 102                                 .iv_size = { 0 }
 103                         }, }
 104                 }, }
 105         },
 106         {       /* SHA1 */
 107                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 108                 {.sym = {
 109                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 110                         {.auth = {
 111                                 .algo = RTE_CRYPTO_AUTH_SHA1,
 112                                 .block_size = 64,
 113                                 .key_size = {
 114                                         .min = 0,
 115                                         .max = 0,
 116                                         .increment = 0
 117                                 },
 118                                 .digest_size = {
 119                                         .min = 20,
 120                                         .max = 20,
 121                                         .increment = 0
 122                                 },
 123                                 .iv_size = { 0 }
 124                         }, }
 125                 }, }
 126         },
 127         {       /* SHA224 HMAC */
 128                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 129                 {.sym = {
 130                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 131                         {.auth = {
 132                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
 133                                 .block_size = 64,
 134                                 .key_size = {
 135                                         .min = 1,
 136                                         .max = 64,
 137                                         .increment = 1
 138                                 },
 139                                 .digest_size = {
 140                                         .min = 28,
 141                                         .max = 28,
 142                                         .increment = 0
 143                                 },
 144                                 .iv_size = { 0 }
 145                         }, }
 146                 }, }
 147         },
 148         {       /* SHA224 */
 149                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 150                 {.sym = {
 151                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 152                         {.auth = {
 153                                 .algo = RTE_CRYPTO_AUTH_SHA224,
 154                                 .block_size = 64,
 155                                 .key_size = {
 156                                         .min = 0,
 157                                         .max = 0,
 158                                         .increment = 0
 159                                 },
 160                                 .digest_size = {
 161                                         .min = 28,
 162                                         .max = 28,
 163                                         .increment = 0
 164                                 },
 165                                 .iv_size = { 0 }
 166                         }, }
 167                 }, }
 168         },
 169         {       /* SHA256 HMAC */
 170                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 171                 {.sym = {
 172                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 173                         {.auth = {
 174                                 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 175                                 .block_size = 64,
 176                                 .key_size = {
 177                                         .min = 1,
 178                                         .max = 64,
 179                                         .increment = 1
 180                                 },
 181                                 .digest_size = {
 182                                         .min = 32,
 183                                         .max = 32,
 184                                         .increment = 0
 185                                 },
 186                                 .iv_size = { 0 }
 187                         }, }
 188                 }, }
 189         },
 190         {       /* SHA256 */
 191                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 192                 {.sym = {
 193                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 194                         {.auth = {
 195                                 .algo = RTE_CRYPTO_AUTH_SHA256,
 196                                 .block_size = 64,
 197                                 .key_size = {
 198                                         .min = 0,
 199                                         .max = 0,
 200                                         .increment = 0
 201                                 },
 202                                 .digest_size = {
 203                                         .min = 32,
 204                                         .max = 32,
 205                                         .increment = 0
 206                                 },
 207                                 .iv_size = { 0 }
 208                         }, }
 209                 }, }
 210         },
 211         {       /* SHA384 HMAC */
 212                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 213                 {.sym = {
 214                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 215                         {.auth = {
 216                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 217                                 .block_size = 128,
 218                                 .key_size = {
 219                                         .min = 1,
 220                                         .max = 128,
 221                                         .increment = 1
 222                                 },
 223                                 .digest_size = {
 224                                         .min = 48,
 225                                         .max = 48,
 226                                         .increment = 0
 227                                 },
 228                                 .iv_size = { 0 }
 229                         }, }
 230                 }, }
 231         },
 232         {       /* SHA384 */
 233                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 234                 {.sym = {
 235                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 236                         {.auth = {
 237                                 .algo = RTE_CRYPTO_AUTH_SHA384,
 238                                 .block_size = 128,
 239                                 .key_size = {
 240                                         .min = 0,
 241                                         .max = 0,
 242                                         .increment = 0
 243                                 },
 244                                 .digest_size = {
 245                                         .min = 48,
 246                                         .max = 48,
 247                                         .increment = 0
 248                                 },
 249                                 .iv_size = { 0 }
 250                         }, }
 251                 }, }
 252         },
 253         {       /* SHA512 HMAC */
 254                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 255                 {.sym = {
 256                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 257                         {.auth = {
 258                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 259                                 .block_size = 128,
 260                                 .key_size = {
 261                                         .min = 1,
 262                                         .max = 128,
 263                                         .increment = 1
 264                                 },
 265                                 .digest_size = {
 266                                         .min = 64,
 267                                         .max = 64,
 268                                         .increment = 0
 269                                 },
 270                                 .iv_size = { 0 }
 271                         }, }
 272                 }, }
 273         },
 274         {       /* SHA512  */
 275                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 276                 {.sym = {
 277                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 278                         {.auth = {
 279                                 .algo = RTE_CRYPTO_AUTH_SHA512,
 280                                 .block_size = 128,
 281                                 .key_size = {
 282                                         .min = 0,
 283                                         .max = 0,
 284                                         .increment = 0
 285                                 },
 286                                 .digest_size = {
 287                                         .min = 64,
 288                                         .max = 64,
 289                                         .increment = 0
 290                                 },
 291                                 .iv_size = { 0 }
 292                         }, }
 293                 }, }
 294         },
 295         {       /* AES CBC */
 296                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 297                 {.sym = {
 298                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 299                         {.cipher = {
 300                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 301                                 .block_size = 16,
 302                                 .key_size = {
 303                                         .min = 16,
 304                                         .max = 32,
 305                                         .increment = 8
 306                                 },
 307                                 .iv_size = {
 308                                         .min = 16,
 309                                         .max = 16,
 310                                         .increment = 0
 311                                 }
 312                         }, }
 313                 }, }
 314         },
 315         {       /* AES CTR */
 316                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 317                 {.sym = {
 318                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 319                         {.cipher = {
 320                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 321                                 .block_size = 16,
 322                                 .key_size = {
 323                                         .min = 16,
 324                                         .max = 32,
 325                                         .increment = 8
 326                                 },
 327                                 .iv_size = {
 328                                         .min = 16,
 329                                         .max = 16,
 330                                         .increment = 0
 331                                 }
 332                         }, }
 333                 }, }
 334         },
 335         {       /* AES GCM */
 336                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 337                 {.sym = {
 338                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 339                         {.aead = {
 340                                 .algo = RTE_CRYPTO_AEAD_AES_GCM,
 341                                 .block_size = 16,
 342                                 .key_size = {
 343                                         .min = 16,
 344                                         .max = 32,
 345                                         .increment = 8
 346                                 },
 347                                 .digest_size = {
 348                                         .min = 16,
 349                                         .max = 16,
 350                                         .increment = 0
 351                                 },
 352                                 .aad_size = {
 353                                         .min = 0,
 354                                         .max = 65535,
 355                                         .increment = 1
 356                                 },
 357                                 .iv_size = {
 358                                         .min = 12,
 359                                         .max = 16,
 360                                         .increment = 4
 361                                 },
 362                         }, }
 363                 }, }
 364         },
 365         {       /* AES CCM */
 366                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 367                 {.sym = {
 368                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 369                         {.aead = {
 370                                 .algo = RTE_CRYPTO_AEAD_AES_CCM,
 371                                 .block_size = 16,
 372                                 .key_size = {
 373                                         .min = 16,
 374                                         .max = 32,
 375                                         .increment = 8
 376                                 },
 377                                 .digest_size = {
 378                                         .min = 4,
 379                                         .max = 16,
 380                                         .increment = 2
 381                                 },
 382                                 .aad_size = {
 383                                         .min = 0,
 384                                         .max = 65535,
 385                                         .increment = 1
 386                                 },
 387                                 .iv_size = {
 388                                         .min = 7,
 389                                         .max = 13,
 390                                         .increment = 1
 391                                 },
 392                         }, }
 393                 }, }
 394         },
 395         {       /* AES GMAC (AUTH) */
 396                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 397                 {.sym = {
 398                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 399                         {.auth = {
 400                                 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
 401                                 .block_size = 16,
 402                                 .key_size = {
 403                                         .min = 16,
 404                                         .max = 32,
 405                                         .increment = 8
 406                                 },
 407                                 .digest_size = {
 408                                         .min = 16,
 409                                         .max = 16,
 410                                         .increment = 0
 411                                 },
 412                                 .iv_size = {
 413                                         .min = 12,
 414                                         .max = 16,
 415                                         .increment = 4
 416                                 }
 417                         }, }
 418                 }, }
 419         },
 420         {       /* 3DES CBC */
 421                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 422                 {.sym = {
 423                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 424                         {.cipher = {
 425                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 426                                 .block_size = 8,
 427                                 .key_size = {
 428                                         .min = 16,
 429                                         .max = 24,
 430                                         .increment = 8
 431                                 },
 432                                 .iv_size = {
 433                                         .min = 8,
 434                                         .max = 8,
 435                                         .increment = 0
 436                                 }
 437                         }, }
 438                 }, }
 439         },
 440         {       /* 3DES CTR */
 441                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 442                 {.sym = {
 443                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 444                         {.cipher = {
 445                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 446                                 .block_size = 8,
 447                                 .key_size = {
 448                                         .min = 16,
 449                                         .max = 24,
 450                                         .increment = 8
 451                                 },
 452                                 .iv_size = {
 453                                         .min = 8,
 454                                         .max = 8,
 455                                         .increment = 0
 456                                 }
 457                         }, }
 458                 }, }
 459         },
 460         {       /* DES CBC */
 461                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 462                 {.sym = {
 463                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 464                         {.cipher = {
 465                                 .algo = RTE_CRYPTO_CIPHER_DES_CBC,
 466                                 .block_size = 8,
 467                                 .key_size = {
 468                                         .min = 8,
 469                                         .max = 8,
 470                                         .increment = 0
 471                                 },
 472                                 .iv_size = {
 473                                         .min = 8,
 474                                         .max = 8,
 475                                         .increment = 0
 476                                 }
 477                         }, }
 478                 }, }
 479         },
 480         {       /* DES DOCSIS BPI */
 481                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 482                 {.sym = {
 483                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 484                         {.cipher = {
 485                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 486                                 .block_size = 8,
 487                                 .key_size = {
 488                                         .min = 8,
 489                                         .max = 8,
 490                                         .increment = 0
 491                                 },
 492                                 .iv_size = {
 493                                         .min = 8,
 494                                         .max = 8,
 495                                         .increment = 0
 496                                 }
 497                         }, }
 498                 }, }
 499         },
 500
 501         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 502 };
 503
 504
 505 /** Configure device */
 506 static int
 507 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 508                 __rte_unused struct rte_cryptodev_config *config)
 509 {
 510         return 0;
 511 }
 512
 513 /** Start device */
 514 static int
 515 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 516 {
 517         return 0;
 518 }
 519
 520 /** Stop device */
 521 static void
 522 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 523 {
 524 }
 525
 526 /** Close device */
 527 static int
 528 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 529 {
 530         return 0;
 531 }
 532
 533
 534 /** Get device statistics */
 535 static void
 536 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 537                 struct rte_cryptodev_stats *stats)
 538 {
 539         int qp_id;
 540
 541         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 542                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 543
 544                 stats->enqueued_count += qp->stats.enqueued_count;
 545                 stats->dequeued_count += qp->stats.dequeued_count;
 546
 547                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 548                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 549         }
 550 }
 551
 552 /** Reset device statistics */
 553 static void
 554 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 555 {
 556         int qp_id;
 557
 558         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 559                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 560
 561                 memset(&qp->stats, 0, sizeof(qp->stats));
 562         }
 563 }
 564
 565
 566 /** Get device info */
 567 static void
 568 openssl_pmd_info_get(struct rte_cryptodev *dev,
 569                 struct rte_cryptodev_info *dev_info)
 570 {
 571         struct openssl_private *internals = dev->data->dev_private;
 572
 573         if (dev_info != NULL) {
 574                 dev_info->driver_id = dev->driver_id;
 575                 dev_info->feature_flags = dev->feature_flags;
 576                 dev_info->capabilities = openssl_pmd_capabilities;
 577                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 578                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 579         }
 580 }
 581
 582 /** Release queue pair */
 583 static int
 584 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 585 {
 586         if (dev->data->queue_pairs[qp_id] != NULL) {
 587                 rte_free(dev->data->queue_pairs[qp_id]);
 588                 dev->data->queue_pairs[qp_id] = NULL;
 589         }
 590         return 0;
 591 }
 592
 593 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 594 static int
 595 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 596                 struct openssl_qp *qp)
 597 {
 598         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 599                         "openssl_pmd_%u_qp_%u",
 600                         dev->data->dev_id, qp->id);
 601
 602         if (n >= sizeof(qp->name))
 603                 return -1;
 604
 605         return 0;
 606 }
 607
 608
 609 /** Create a ring to place processed operations on */
 610 static struct rte_ring *
 611 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 612                 unsigned int ring_size, int socket_id)
 613 {
 614         struct rte_ring *r;
 615
 616         r = rte_ring_lookup(qp->name);
 617         if (r) {
 618                 if (rte_ring_get_size(r) >= ring_size) {
 619                         OPENSSL_LOG_INFO(
 620                                 "Reusing existing ring %s for processed ops",
 621                                  qp->name);
 622                         return r;
 623                 }
 624
 625                 OPENSSL_LOG_ERR(
 626                         "Unable to reuse existing ring %s for processed ops",
 627                          qp->name);
 628                 return NULL;
 629         }
 630
 631         return rte_ring_create(qp->name, ring_size, socket_id,
 632                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 633 }
 634
 635
 636 /** Setup a queue pair */
 637 static int
 638 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 639                 const struct rte_cryptodev_qp_conf *qp_conf,
 640                 int socket_id, struct rte_mempool *session_pool)
 641 {
 642         struct openssl_qp *qp = NULL;
 643
 644         /* Free memory prior to re-allocation if needed. */
 645         if (dev->data->queue_pairs[qp_id] != NULL)
 646                 openssl_pmd_qp_release(dev, qp_id);
 647
 648         /* Allocate the queue pair data structure. */
 649         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 650                                         RTE_CACHE_LINE_SIZE, socket_id);
 651         if (qp == NULL)
 652                 return -ENOMEM;
 653
 654         qp->id = qp_id;
 655         dev->data->queue_pairs[qp_id] = qp;
 656
 657         if (openssl_pmd_qp_set_unique_name(dev, qp))
 658                 goto qp_setup_cleanup;
 659
 660         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 661                         qp_conf->nb_descriptors, socket_id);
 662         if (qp->processed_ops == NULL)
 663                 goto qp_setup_cleanup;
 664
 665         qp->sess_mp = session_pool;
 666
 667         memset(&qp->stats, 0, sizeof(qp->stats));
 668
 669         return 0;
 670
 671 qp_setup_cleanup:
 672         if (qp)
 673                 rte_free(qp);
 674
 675         return -1;
 676 }
 677
 678 /** Start queue pair */
 679 static int
 680 openssl_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
 681                 __rte_unused uint16_t queue_pair_id)
 682 {
 683         return -ENOTSUP;
 684 }
 685
 686 /** Stop queue pair */
 687 static int
 688 openssl_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
 689                 __rte_unused uint16_t queue_pair_id)
 690 {
 691         return -ENOTSUP;
 692 }
 693
 694 /** Return the number of allocated queue pairs */
 695 static uint32_t
 696 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 697 {
 698         return dev->data->nb_queue_pairs;
 699 }
 700
 701 /** Returns the size of the session structure */
 702 static unsigned
 703 openssl_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 704 {
 705         return sizeof(struct openssl_session);
 706 }
 707
 708 /** Configure the session from a crypto xform chain */
 709 static int
 710 openssl_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
 711                 struct rte_crypto_sym_xform *xform,
 712                 struct rte_cryptodev_sym_session *sess,
 713                 struct rte_mempool *mempool)
 714 {
 715         void *sess_private_data;
 716         int ret;
 717
 718         if (unlikely(sess == NULL)) {
 719                 OPENSSL_LOG_ERR("invalid session struct");
 720                 return -EINVAL;
 721         }
 722
 723         if (rte_mempool_get(mempool, &sess_private_data)) {
 724                 CDEV_LOG_ERR(
 725                         "Couldn't get object from session mempool");
 726                 return -ENOMEM;
 727         }
 728
 729         ret = openssl_set_session_parameters(sess_private_data, xform);
 730         if (ret != 0) {
 731                 OPENSSL_LOG_ERR("failed configure session parameters");
 732
 733                 /* Return session to mempool */
 734                 rte_mempool_put(mempool, sess_private_data);
 735                 return ret;
 736         }
 737
 738         set_session_private_data(sess, dev->driver_id,
 739                         sess_private_data);
 740
 741         return 0;
 742 }
 743
 744
 745 /** Clear the memory of session so it doesn't leave key material behind */
 746 static void
 747 openssl_pmd_session_clear(struct rte_cryptodev *dev,
 748                 struct rte_cryptodev_sym_session *sess)
 749 {
 750         uint8_t index = dev->driver_id;
 751         void *sess_priv = get_session_private_data(sess, index);
 752
 753         /* Zero out the whole structure */
 754         if (sess_priv) {
 755                 openssl_reset_session(sess_priv);
 756                 memset(sess_priv, 0, sizeof(struct openssl_session));
 757                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 758                 set_session_private_data(sess, index, NULL);
 759                 rte_mempool_put(sess_mp, sess_priv);
 760         }
 761 }
 762
 763 struct rte_cryptodev_ops openssl_pmd_ops = {
 764                 .dev_configure          = openssl_pmd_config,
 765                 .dev_start              = openssl_pmd_start,
 766                 .dev_stop               = openssl_pmd_stop,
 767                 .dev_close              = openssl_pmd_close,
 768
 769                 .stats_get              = openssl_pmd_stats_get,
 770                 .stats_reset            = openssl_pmd_stats_reset,
 771
 772                 .dev_infos_get          = openssl_pmd_info_get,
 773
 774                 .queue_pair_setup       = openssl_pmd_qp_setup,
 775                 .queue_pair_release     = openssl_pmd_qp_release,
 776                 .queue_pair_start       = openssl_pmd_qp_start,
 777                 .queue_pair_stop        = openssl_pmd_qp_stop,
 778                 .queue_pair_count       = openssl_pmd_qp_count,
 779
 780                 .session_get_size       = openssl_pmd_session_get_size,
 781                 .session_configure      = openssl_pmd_session_configure,
 782                 .session_clear          = openssl_pmd_session_clear
 783 };
 784
 785 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;