drivers/crypto/mvsam/rte_mrvl_pmd_ops.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Marvell International Ltd.
   3  * Copyright(c) 2017 Semihalf.
   4  * All rights reserved.
   5  */
   6
   7 #include <string.h>
   8
   9 #include <rte_common.h>
  10 #include <rte_malloc.h>
  11 #include <rte_cryptodev_pmd.h>
  12
  13 #include "rte_mrvl_pmd_private.h"
  14
  15 /**
  16  * Capabilities list to be used in reporting to DPDK.
  17  */
  18 static const struct rte_cryptodev_capabilities
  19         mrvl_crypto_pmd_capabilities[] = {
  20         {       /* MD5 HMAC */
  21                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  22                 {.sym = {
  23                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  24                         {.auth = {
  25                                 .algo = RTE_CRYPTO_AUTH_MD5_HMAC,
  26                                 .block_size = 64,
  27                                 .key_size = {
  28                                         .min = 1,
  29                                         .max = 64,
  30                                         .increment = 1
  31                                 },
  32                                 .digest_size = {
  33                                         .min = 12,
  34                                         .max = 16,
  35                                         .increment = 4
  36                                 },
  37                         }, }
  38                 }, }
  39         },
  40         {       /* MD5 */
  41                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  42                         {.sym = {
  43                                 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  44                                 {.auth = {
  45                                         .algo = RTE_CRYPTO_AUTH_MD5,
  46                                         .block_size = 64,
  47                                         .key_size = {
  48                                                 .min = 0,
  49                                                 .max = 0,
  50                                                 .increment = 0
  51                                         },
  52                                         .digest_size = {
  53                                                 .min = 12,
  54                                                 .max = 16,
  55                                                 .increment = 4
  56                                         },
  57                                 }, }
  58                         }, }
  59         },
  60         {       /* SHA1 HMAC */
  61                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  62                         {.sym = {
  63                                 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  64                                 {.auth = {
  65                                         .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  66                                         .block_size = 64,
  67                                         .key_size = {
  68                                                 .min = 1,
  69                                                 .max = 64,
  70                                                 .increment = 1
  71                                         },
  72                                         .digest_size = {
  73                                                 .min = 12,
  74                                                 .max = 20,
  75                                                 .increment = 4
  76                                         },
  77                                 }, }
  78                         }, }
  79         },
  80         {       /* SHA1 */
  81                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  82                 {.sym = {
  83                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  84                         {.auth = {
  85                                 .algo = RTE_CRYPTO_AUTH_SHA1,
  86                                 .block_size = 64,
  87                                 .key_size = {
  88                                         .min = 0,
  89                                         .max = 0,
  90                                         .increment = 0
  91                                 },
  92                                 .digest_size = {
  93                                         .min = 12,
  94                                         .max = 20,
  95                                         .increment = 4
  96                                 },
  97                         }, }
  98                 }, }
  99         },
 100         {
 101                 /* SHA224 HMAC */
 102                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 103                 {.sym = {
 104                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 105                         {.auth = {
 106                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
 107                                 .block_size = 64,
 108                                 .key_size = {
 109                                         .min = 1,
 110                                         .max = 64,
 111                                         .increment = 1
 112                                 },
 113                                 .digest_size = {
 114                                         .min = 28,
 115                                         .max = 28,
 116                                         .increment = 0
 117                                 },
 118                         }, }
 119                 }, }
 120         },
 121         {       /* SHA224 */
 122                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 123                 {.sym = {
 124                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 125                         {.auth = {
 126                                 .algo = RTE_CRYPTO_AUTH_SHA224,
 127                                 .block_size = 64,
 128                                 .key_size = {
 129                                         .min = 0,
 130                                         .max = 0,
 131                                         .increment = 0
 132                                 },
 133                                 .digest_size = {
 134                                         .min = 12,
 135                                         .max = 28,
 136                                         .increment = 4
 137                                 },
 138                         }, }
 139                 }, }
 140         },
 141         {       /* SHA256 HMAC */
 142                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 143                         {.sym = {
 144                                 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 145                                 {.auth = {
 146                                         .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 147                                         .block_size = 64,
 148                                         .key_size = {
 149                                                 .min = 1,
 150                                                 .max = 64,
 151                                                 .increment = 1
 152                                         },
 153                                         .digest_size = {
 154                                                 .min = 12,
 155                                                 .max = 32,
 156                                                 .increment = 4
 157                                         },
 158                                 }, }
 159                         }, }
 160         },
 161         {       /* SHA256 */
 162                         .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 163                         {.sym = {
 164                                 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 165                                 {.auth = {
 166                                         .algo = RTE_CRYPTO_AUTH_SHA256,
 167                                         .block_size = 64,
 168                                         .key_size = {
 169                                                 .min = 0,
 170                                                 .max = 0,
 171                                                 .increment = 0
 172                                         },
 173                                         .digest_size = {
 174                                                 .min = 12,
 175                                                 .max = 32,
 176                                                 .increment = 4
 177                                         },
 178                                 }, }
 179                         }, }
 180                 },
 181         {       /* SHA384 HMAC */
 182                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 183                 {.sym = {
 184                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 185                         {.auth = {
 186                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 187                                 .block_size = 128,
 188                                 .key_size = {
 189                                         .min = 1,
 190                                         .max = 128,
 191                                         .increment = 1
 192                                 },
 193                                 .digest_size = {
 194                                         .min = 12,
 195                                         .max = 48,
 196                                         .increment = 4
 197                                 },
 198                         }, }
 199                 }, }
 200         },
 201         {       /* SHA384 */
 202                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 203                 {.sym = {
 204                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 205                         {.auth = {
 206                                 .algo = RTE_CRYPTO_AUTH_SHA384,
 207                                 .block_size = 128,
 208                                 .key_size = {
 209                                         .min = 0,
 210                                         .max = 0,
 211                                         .increment = 0
 212                                 },
 213                                 .digest_size = {
 214                                         .min = 12,
 215                                         .max = 48,
 216                                         .increment = 4
 217                                 },
 218                         }, }
 219                 }, }
 220         },
 221         {       /* SHA512 HMAC */
 222                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 223                 {.sym = {
 224                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 225                         {.auth = {
 226                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 227                                 .block_size = 128,
 228                                 .key_size = {
 229                                         .min = 1,
 230                                         .max = 128,
 231                                         .increment = 1
 232                                 },
 233                                 .digest_size = {
 234                                         .min = 12,
 235                                         .max = 48,
 236                                         .increment = 4
 237                                 },
 238                         }, }
 239                 }, }
 240         },
 241         {       /* SHA512  */
 242                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 243                 {.sym = {
 244                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 245                         {.auth = {
 246                                 .algo = RTE_CRYPTO_AUTH_SHA512,
 247                                 .block_size = 128,
 248                                 .key_size = {
 249                                         .min = 0,
 250                                         .max = 0,
 251                                         .increment = 0
 252                                 },
 253                                 .digest_size = {
 254                                         .min = 12,
 255                                         .max = 48,
 256                                         .increment = 0
 257                                 },
 258                         }, }
 259                 }, }
 260         },
 261         {       /* AES CBC */
 262                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 263                         {.sym = {
 264                                 .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 265                                 {.cipher = {
 266                                         .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 267                                         .block_size = 16,
 268                                         .key_size = {
 269                                                 .min = 16,
 270                                                 .max = 32,
 271                                                 .increment = 8
 272                                         },
 273                                         .iv_size = {
 274                                                 .min = 16,
 275                                                 .max = 16,
 276                                                 .increment = 0
 277                                         }
 278                                 }, }
 279                         }, }
 280         },
 281         {       /* AES CTR */
 282                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 283                 {.sym = {
 284                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 285                         {.cipher = {
 286                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 287                                 .block_size = 16,
 288                                 .key_size = {
 289                                         .min = 16,
 290                                         .max = 32,
 291                                         .increment = 8
 292                                 },
 293                                 .iv_size = {
 294                                         .min = 16,
 295                                         .max = 16,
 296                                         .increment = 0
 297                                 }
 298                         }, }
 299                 }, }
 300         },
 301         {       /* AES GCM */
 302                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 303                 {.sym = {
 304                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 305                         {.aead = {
 306                                 .algo = RTE_CRYPTO_AEAD_AES_GCM,
 307                                 .block_size = 16,
 308                                 .key_size = {
 309                                         .min = 16,
 310                                         .max = 32,
 311                                         .increment = 8
 312                                 },
 313                                 .digest_size = {
 314                                         .min = 16,
 315                                         .max = 16,
 316                                         .increment = 0
 317                                 },
 318                                 .aad_size = {
 319                                         .min = 8,
 320                                         .max = 12,
 321                                         .increment = 4
 322                                 },
 323                                 .iv_size = {
 324                                         .min = 12,
 325                                         .max = 16,
 326                                         .increment = 4
 327                                 }
 328                         }, }
 329                 }, }
 330         },
 331         {       /* AES GMAC (AUTH) */
 332                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 333                 {.sym = {
 334                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 335                         {.auth = {
 336                                 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
 337                                 .block_size = 16,
 338                                 .key_size = {
 339                                         .min = 16,
 340                                         .max = 32,
 341                                         .increment = 8
 342                                 },
 343                                 .digest_size = {
 344                                         .min = 16,
 345                                         .max = 16,
 346                                         .increment = 0
 347                                 },
 348                                 .iv_size = {
 349                                         .min = 8,
 350                                         .max = 65532,
 351                                         .increment = 4
 352                                 }
 353                         }, }
 354                 }, }
 355         },
 356         {       /* 3DES CBC */
 357                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 358                 {.sym = {
 359                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 360                         {.cipher = {
 361                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 362                                 .block_size = 8,
 363                                 .key_size = {
 364                                         .min = 24,
 365                                         .max = 24,
 366                                         .increment = 0
 367                                 },
 368                                 .iv_size = {
 369                                         .min = 8,
 370                                         .max = 8,
 371                                         .increment = 0
 372                                 }
 373                         }, }
 374                 }, }
 375         },
 376         {       /* 3DES CTR */
 377                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 378                 {.sym = {
 379                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 380                         {.cipher = {
 381                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 382                                 .block_size = 8,
 383                                 .key_size = {
 384                                         .min = 24,
 385                                         .max = 24,
 386                                         .increment = 0
 387                                 },
 388                                 .iv_size = {
 389                                         .min = 8,
 390                                         .max = 8,
 391                                         .increment = 0
 392                                 }
 393                         }, }
 394                 }, }
 395         },
 396
 397         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 398 };
 399
 400
 401 /**
 402  * Configure device (PMD ops callback).
 403  *
 404  * @param dev Pointer to the device structure.
 405  * @param config Pointer to configuration structure.
 406  * @returns 0. Always.
 407  */
 408 static int
 409 mrvl_crypto_pmd_config(__rte_unused struct rte_cryptodev *dev,
 410                 __rte_unused struct rte_cryptodev_config *config)
 411 {
 412         return 0;
 413 }
 414
 415 /**
 416  * Start device (PMD ops callback).
 417  *
 418  * @param dev Pointer to the device structure.
 419  * @returns 0. Always.
 420  */
 421 static int
 422 mrvl_crypto_pmd_start(__rte_unused struct rte_cryptodev *dev)
 423 {
 424         return 0;
 425 }
 426
 427 /**
 428  * Stop device (PMD ops callback).
 429  *
 430  * @param dev Pointer to the device structure.
 431  * @returns 0. Always.
 432  */
 433 static void
 434 mrvl_crypto_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 435 {
 436 }
 437
 438 /**
 439  * Get device statistics (PMD ops callback).
 440  *
 441  * @param dev Pointer to the device structure.
 442  * @param stats Pointer to statistics structure [out].
 443  */
 444 static void
 445 mrvl_crypto_pmd_stats_get(struct rte_cryptodev *dev,
 446                 struct rte_cryptodev_stats *stats)
 447 {
 448         int qp_id;
 449
 450         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 451                 struct mrvl_crypto_qp *qp = dev->data->queue_pairs[qp_id];
 452
 453                 stats->enqueued_count += qp->stats.enqueued_count;
 454                 stats->dequeued_count += qp->stats.dequeued_count;
 455
 456                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 457                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 458         }
 459 }
 460
 461 /**
 462  * Reset device statistics (PMD ops callback).
 463  *
 464  * @param dev Pointer to the device structure.
 465  */
 466 static void
 467 mrvl_crypto_pmd_stats_reset(struct rte_cryptodev *dev)
 468 {
 469         int qp_id;
 470
 471         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 472                 struct mrvl_crypto_qp *qp = dev->data->queue_pairs[qp_id];
 473
 474                 memset(&qp->stats, 0, sizeof(qp->stats));
 475         }
 476 }
 477
 478 /**
 479  * Get device info (PMD ops callback).
 480  *
 481  * @param dev Pointer to the device structure.
 482  * @param dev_info Pointer to the device info structure [out].
 483  */
 484 static void
 485 mrvl_crypto_pmd_info_get(struct rte_cryptodev *dev,
 486                 struct rte_cryptodev_info *dev_info)
 487 {
 488         struct mrvl_crypto_private *internals = dev->data->dev_private;
 489
 490         if (dev_info != NULL) {
 491                 dev_info->driver_id = dev->driver_id;
 492                 dev_info->feature_flags = dev->feature_flags;
 493                 dev_info->capabilities = mrvl_crypto_pmd_capabilities;
 494                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 495                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 496         }
 497 }
 498
 499 /**
 500  * Release queue pair (PMD ops callback).
 501  *
 502  * @param dev Pointer to the device structure.
 503  * @param qp_id ID of Queue Pair to release.
 504  * @returns 0. Always.
 505  */
 506 static int
 507 mrvl_crypto_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 508 {
 509         struct mrvl_crypto_qp *qp =
 510                         (struct mrvl_crypto_qp *)dev->data->queue_pairs[qp_id];
 511
 512         if (dev->data->queue_pairs[qp_id] != NULL) {
 513                 sam_cio_flush(qp->cio);
 514                 sam_cio_deinit(qp->cio);
 515                 rte_free(dev->data->queue_pairs[qp_id]);
 516                 dev->data->queue_pairs[qp_id] = NULL;
 517         }
 518
 519         return 0;
 520 }
 521
 522 /**
 523  * Close device (PMD ops callback).
 524  *
 525  * @param dev Pointer to the device structure.
 526  * @returns 0. Always.
 527  */
 528 static int
 529 mrvl_crypto_pmd_close(struct rte_cryptodev *dev)
 530 {
 531         int qp_id;
 532
 533         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++)
 534                 mrvl_crypto_pmd_qp_release(dev, qp_id);
 535
 536         return 0;
 537 }
 538
 539 /**
 540  * Setup a queue pair (PMD ops callback).
 541  *
 542  * @param dev Pointer to the device structure.
 543  * @param qp_id ID of the Queue Pair.
 544  * @param qp_conf Queue pair configuration (nb of descriptors).
 545  * @param socket_id NUMA socket to allocate memory on.
 546  * @returns 0 upon success, negative value otherwise.
 547  */
 548 static int
 549 mrvl_crypto_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 550                 const struct rte_cryptodev_qp_conf *qp_conf,
 551                 int socket_id, struct rte_mempool *session_pool)
 552 {
 553         struct mrvl_crypto_qp *qp = NULL;
 554         char match[RTE_CRYPTODEV_NAME_MAX_LEN];
 555         unsigned int n;
 556
 557         /* Allocate the queue pair data structure. */
 558         qp = rte_zmalloc_socket("MRVL Crypto PMD Queue Pair", sizeof(*qp),
 559                                         RTE_CACHE_LINE_SIZE, socket_id);
 560         if (qp == NULL)
 561                 return -ENOMEM;
 562
 563         /* Free old qp prior setup if needed. */
 564         if (dev->data->queue_pairs[qp_id] != NULL)
 565                 mrvl_crypto_pmd_qp_release(dev, qp_id);
 566
 567         do { /* Error handling block */
 568
 569                 /*
 570                  * This extra check is necessary due to a bug in
 571                  * crypto library.
 572                  */
 573                 int num = sam_get_num_inst();
 574                 if (num == 0) {
 575                         MRVL_CRYPTO_LOG_ERR("No crypto engines detected.\n");
 576                         return -1;
 577                 }
 578
 579                 /*
 580                  * In case two crypto engines are enabled qps will
 581                  * be evenly spread among them. Even and odd qps will
 582                  * be handled by cio-0 and cio-1 respectively. qp-cio mapping
 583                  * will look as follows:
 584                  *
 585                  * qp:      0        1        2        3
 586                  * cio-x:y: cio-0:0, cio-1:0, cio-0:1, cio-1:1
 587                  *
 588                  * qp:      4        5        6        7
 589                  * cio-x:y: cio-0:2, cio-1:2, cio-0:3, cio-1:3
 590                  *
 591                  * In case just one engine is enabled mapping will look as
 592                  * follows:
 593                  * qp:      0        1        2        3
 594                  * cio-x:y: cio-0:0, cio-0:1, cio-0:2, cio-0:3
 595                  */
 596                 n = snprintf(match, sizeof(match), "cio-%u:%u",
 597                                 qp_id % num, qp_id / num);
 598
 599                 if (n >= sizeof(match))
 600                         break;
 601
 602                 qp->cio_params.match = match;
 603                 qp->cio_params.size = qp_conf->nb_descriptors;
 604
 605                 if (sam_cio_init(&qp->cio_params, &qp->cio) < 0)
 606                         break;
 607
 608                 qp->sess_mp = session_pool;
 609
 610                 memset(&qp->stats, 0, sizeof(qp->stats));
 611                 dev->data->queue_pairs[qp_id] = qp;
 612                 return 0;
 613         } while (0);
 614
 615         rte_free(qp);
 616         return -1;
 617 }
 618
 619 /** Return the number of allocated queue pairs (PMD ops callback).
 620  *
 621  * @param dev Pointer to the device structure.
 622  * @returns Number of allocated queue pairs.
 623  */
 624 static uint32_t
 625 mrvl_crypto_pmd_qp_count(struct rte_cryptodev *dev)
 626 {
 627         return dev->data->nb_queue_pairs;
 628 }
 629
 630 /** Returns the size of the session structure (PMD ops callback).
 631  *
 632  * @param dev Pointer to the device structure [Unused].
 633  * @returns Size of Marvell crypto session.
 634  */
 635 static unsigned
 636 mrvl_crypto_pmd_sym_session_get_size(__rte_unused struct rte_cryptodev *dev)
 637 {
 638         return sizeof(struct mrvl_crypto_session);
 639 }
 640
 641 /** Configure the session from a crypto xform chain (PMD ops callback).
 642  *
 643  * @param dev Pointer to the device structure.
 644  * @param xform Pointer to the crytpo configuration structure.
 645  * @param sess Pointer to the empty session structure.
 646  * @returns 0 upon success, negative value otherwise.
 647  */
 648 static int
 649 mrvl_crypto_pmd_sym_session_configure(__rte_unused struct rte_cryptodev *dev,
 650                 struct rte_crypto_sym_xform *xform,
 651                 struct rte_cryptodev_sym_session *sess,
 652                 struct rte_mempool *mp)
 653 {
 654         struct mrvl_crypto_session *mrvl_sess;
 655         void *sess_private_data;
 656         int ret;
 657
 658         if (sess == NULL) {
 659                 MRVL_CRYPTO_LOG_ERR("Invalid session struct.");
 660                 return -EINVAL;
 661         }
 662
 663         if (rte_mempool_get(mp, &sess_private_data)) {
 664                 CDEV_LOG_ERR("Couldn't get object from session mempool.");
 665                 return -ENOMEM;
 666         }
 667
 668         ret = mrvl_crypto_set_session_parameters(sess_private_data, xform);
 669         if (ret != 0) {
 670                 MRVL_CRYPTO_LOG_ERR("Failed to configure session parameters.");
 671
 672                 /* Return session to mempool */
 673                 rte_mempool_put(mp, sess_private_data);
 674                 return ret;
 675         }
 676
 677         set_sym_session_private_data(sess, dev->driver_id, sess_private_data);
 678
 679         mrvl_sess = (struct mrvl_crypto_session *)sess_private_data;
 680         if (sam_session_create(&mrvl_sess->sam_sess_params,
 681                                 &mrvl_sess->sam_sess) < 0) {
 682                 MRVL_CRYPTO_LOG_DBG("Failed to create session!");
 683                 return -EIO;
 684         }
 685
 686         return 0;
 687 }
 688
 689 /**
 690  * Clear the memory of session so it doesn't leave key material behind.
 691  *
 692  * @param dev Pointer to the device structure.
 693  * @returns 0. Always.
 694  */
 695 static void
 696 mrvl_crypto_pmd_sym_session_clear(struct rte_cryptodev *dev,
 697                 struct rte_cryptodev_sym_session *sess)
 698 {
 699
 700         uint8_t index = dev->driver_id;
 701         void *sess_priv = get_sym_session_private_data(sess, index);
 702
 703         /* Zero out the whole structure */
 704         if (sess_priv) {
 705                 struct mrvl_crypto_session *mrvl_sess =
 706                         (struct mrvl_crypto_session *)sess_priv;
 707
 708                 if (mrvl_sess->sam_sess &&
 709                     sam_session_destroy(mrvl_sess->sam_sess) < 0) {
 710                         MRVL_CRYPTO_LOG_INFO("Error while destroying session!");
 711                 }
 712
 713                 memset(sess, 0, sizeof(struct mrvl_crypto_session));
 714                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 715                 set_sym_session_private_data(sess, index, NULL);
 716                 rte_mempool_put(sess_mp, sess_priv);
 717         }
 718 }
 719
 720 /**
 721  * PMD handlers for crypto ops.
 722  */
 723 static struct rte_cryptodev_ops mrvl_crypto_pmd_ops = {
 724                 .dev_configure          = mrvl_crypto_pmd_config,
 725                 .dev_start              = mrvl_crypto_pmd_start,
 726                 .dev_stop               = mrvl_crypto_pmd_stop,
 727                 .dev_close              = mrvl_crypto_pmd_close,
 728
 729                 .dev_infos_get          = mrvl_crypto_pmd_info_get,
 730
 731                 .stats_get              = mrvl_crypto_pmd_stats_get,
 732                 .stats_reset            = mrvl_crypto_pmd_stats_reset,
 733
 734                 .queue_pair_setup       = mrvl_crypto_pmd_qp_setup,
 735                 .queue_pair_release     = mrvl_crypto_pmd_qp_release,
 736                 .queue_pair_count       = mrvl_crypto_pmd_qp_count,
 737
 738                 .sym_session_get_size   = mrvl_crypto_pmd_sym_session_get_size,
 739                 .sym_session_configure  = mrvl_crypto_pmd_sym_session_configure,
 740                 .sym_session_clear      = mrvl_crypto_pmd_sym_session_clear
 741 };
 742
 743 struct rte_cryptodev_ops *rte_mrvl_crypto_pmd_ops = &mrvl_crypto_pmd_ops;