lib/librte_cryptodev/rte_cryptodev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015-2017 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 <sys/types.h>
  34 #include <sys/queue.h>
  35 #include <ctype.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <stdarg.h>
  40 #include <errno.h>
  41 #include <stdint.h>
  42 #include <inttypes.h>
  43 #include <netinet/in.h>
  44
  45 #include <rte_byteorder.h>
  46 #include <rte_log.h>
  47 #include <rte_debug.h>
  48 #include <rte_dev.h>
  49 #include <rte_interrupts.h>
  50 #include <rte_memory.h>
  51 #include <rte_memcpy.h>
  52 #include <rte_memzone.h>
  53 #include <rte_launch.h>
  54 #include <rte_tailq.h>
  55 #include <rte_eal.h>
  56 #include <rte_per_lcore.h>
  57 #include <rte_lcore.h>
  58 #include <rte_atomic.h>
  59 #include <rte_branch_prediction.h>
  60 #include <rte_common.h>
  61 #include <rte_mempool.h>
  62 #include <rte_malloc.h>
  63 #include <rte_mbuf.h>
  64 #include <rte_errno.h>
  65 #include <rte_spinlock.h>
  66 #include <rte_string_fns.h>
  67
  68 #include "rte_crypto.h"
  69 #include "rte_cryptodev.h"
  70 #include "rte_cryptodev_pmd.h"
  71
  72 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  73
  74 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  75
  76 static struct rte_cryptodev_global cryptodev_globals = {
  77                 .devs                   = &rte_crypto_devices[0],
  78                 .data                   = { NULL },
  79                 .nb_devs                = 0,
  80                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  81 };
  82
  83 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  84
  85 /* spinlock for crypto device callbacks */
  86 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  87
  88
  89 /**
  90  * The user application callback description.
  91  *
  92  * It contains callback address to be registered by user application,
  93  * the pointer to the parameters for callback, and the event type.
  94  */
  95 struct rte_cryptodev_callback {
  96         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  97         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
  98         void *cb_arg;                           /**< Parameter for callback */
  99         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
 100         uint32_t active;                        /**< Callback is executing */
 101 };
 102
 103 /**
 104  * The crypto cipher algorithm strings identifiers.
 105  * It could be used in application command line.
 106  */
 107 const char *
 108 rte_crypto_cipher_algorithm_strings[] = {
 109         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
 110         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
 111         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
 112
 113         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
 114         [RTE_CRYPTO_CIPHER_AES_CCM]     = "aes-ccm",
 115         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
 116         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
 117         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
 118         [RTE_CRYPTO_CIPHER_AES_GCM]     = "aes-gcm",
 119         [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
 120         [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",
 121
 122         [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",
 123
 124         [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
 125         [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",
 126
 127         [RTE_CRYPTO_CIPHER_NULL]        = "null",
 128
 129         [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
 130         [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
 131         [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
 132 };
 133
 134 /**
 135  * The crypto cipher operation strings identifiers.
 136  * It could be used in application command line.
 137  */
 138 const char *
 139 rte_crypto_cipher_operation_strings[] = {
 140                 [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
 141                 [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
 142 };
 143
 144 /**
 145  * The crypto auth algorithm strings identifiers.
 146  * It could be used in application command line.
 147  */
 148 const char *
 149 rte_crypto_auth_algorithm_strings[] = {
 150         [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
 151         [RTE_CRYPTO_AUTH_AES_CCM]       = "aes-ccm",
 152         [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
 153         [RTE_CRYPTO_AUTH_AES_GCM]       = "aes-gcm",
 154         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 155         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 156
 157         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 158         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 159
 160         [RTE_CRYPTO_AUTH_NULL]          = "null",
 161
 162         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 163         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 164
 165         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 166         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 167         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 168         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 169         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 170         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 171         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 172         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 173
 174         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 175         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 176         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 177 };
 178
 179 int
 180 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 181                 const char *algo_string)
 182 {
 183         unsigned int i;
 184
 185         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 186                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 187                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 188                         return 0;
 189                 }
 190         }
 191
 192         /* Invalid string */
 193         return -1;
 194 }
 195
 196 int
 197 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 198                 const char *algo_string)
 199 {
 200         unsigned int i;
 201
 202         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 203                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 204                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 205                         return 0;
 206                 }
 207         }
 208
 209         /* Invalid string */
 210         return -1;
 211 }
 212
 213 /**
 214  * The crypto auth operation strings identifiers.
 215  * It could be used in application command line.
 216  */
 217 const char *
 218 rte_crypto_auth_operation_strings[] = {
 219                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 220                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 221 };
 222
 223 const struct rte_cryptodev_symmetric_capability *
 224 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 225                 const struct rte_cryptodev_sym_capability_idx *idx)
 226 {
 227         const struct rte_cryptodev_capabilities *capability;
 228         struct rte_cryptodev_info dev_info;
 229         int i = 0;
 230
 231         rte_cryptodev_info_get(dev_id, &dev_info);
 232
 233         while ((capability = &dev_info.capabilities[i++])->op !=
 234                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 235                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 236                         continue;
 237
 238                 if (capability->sym.xform_type != idx->type)
 239                         continue;
 240
 241                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 242                         capability->sym.auth.algo == idx->algo.auth)
 243                         return &capability->sym;
 244
 245                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 246                         capability->sym.cipher.algo == idx->algo.cipher)
 247                         return &capability->sym;
 248         }
 249
 250         return NULL;
 251
 252 }
 253
 254 #define param_range_check(x, y) \
 255         (((x < y.min) || (x > y.max)) || \
 256         (y.increment != 0 && (x % y.increment) != 0))
 257
 258 int
 259 rte_cryptodev_sym_capability_check_cipher(
 260                 const struct rte_cryptodev_symmetric_capability *capability,
 261                 uint16_t key_size, uint16_t iv_size)
 262 {
 263         if (param_range_check(key_size, capability->cipher.key_size))
 264                 return -1;
 265
 266         if (param_range_check(iv_size, capability->cipher.iv_size))
 267                 return -1;
 268
 269         return 0;
 270 }
 271
 272 int
 273 rte_cryptodev_sym_capability_check_auth(
 274                 const struct rte_cryptodev_symmetric_capability *capability,
 275                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size)
 276 {
 277         if (param_range_check(key_size, capability->auth.key_size))
 278                 return -1;
 279
 280         if (param_range_check(digest_size, capability->auth.digest_size))
 281                 return -1;
 282
 283         if (param_range_check(aad_size, capability->auth.aad_size))
 284                 return -1;
 285
 286         return 0;
 287 }
 288
 289
 290 const char *
 291 rte_cryptodev_get_feature_name(uint64_t flag)
 292 {
 293         switch (flag) {
 294         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 295                 return "SYMMETRIC_CRYPTO";
 296         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 297                 return "ASYMMETRIC_CRYPTO";
 298         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 299                 return "SYM_OPERATION_CHAINING";
 300         case RTE_CRYPTODEV_FF_CPU_SSE:
 301                 return "CPU_SSE";
 302         case RTE_CRYPTODEV_FF_CPU_AVX:
 303                 return "CPU_AVX";
 304         case RTE_CRYPTODEV_FF_CPU_AVX2:
 305                 return "CPU_AVX2";
 306         case RTE_CRYPTODEV_FF_CPU_AESNI:
 307                 return "CPU_AESNI";
 308         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 309                 return "HW_ACCELERATED";
 310         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 311                 return "MBUF_SCATTER_GATHER";
 312         case RTE_CRYPTODEV_FF_CPU_NEON:
 313                 return "CPU_NEON";
 314         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 315                 return "CPU_ARM_CE";
 316         default:
 317                 return NULL;
 318         }
 319 }
 320
 321 int
 322 rte_cryptodev_create_vdev(const char *name, const char *args)
 323 {
 324         return rte_vdev_init(name, args);
 325 }
 326
 327 struct rte_cryptodev *
 328 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 329 {
 330         return &rte_cryptodev_globals->devs[dev_id];
 331 }
 332
 333 struct rte_cryptodev *
 334 rte_cryptodev_pmd_get_named_dev(const char *name)
 335 {
 336         struct rte_cryptodev *dev;
 337         unsigned int i;
 338
 339         if (name == NULL)
 340                 return NULL;
 341
 342         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 343                 dev = &rte_cryptodev_globals->devs[i];
 344
 345                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 346                                 (strcmp(dev->data->name, name) == 0))
 347                         return dev;
 348         }
 349
 350         return NULL;
 351 }
 352
 353 unsigned int
 354 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 355 {
 356         struct rte_cryptodev *dev = NULL;
 357
 358         if (dev_id >= rte_cryptodev_globals->nb_devs)
 359                 return 0;
 360
 361         dev = rte_cryptodev_pmd_get_dev(dev_id);
 362         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 363                 return 0;
 364         else
 365                 return 1;
 366 }
 367
 368
 369 int
 370 rte_cryptodev_get_dev_id(const char *name)
 371 {
 372         unsigned i;
 373
 374         if (name == NULL)
 375                 return -1;
 376
 377         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 378                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 379                                 == 0) &&
 380                                 (rte_cryptodev_globals->devs[i].attached ==
 381                                                 RTE_CRYPTODEV_ATTACHED))
 382                         return i;
 383
 384         return -1;
 385 }
 386
 387 uint8_t
 388 rte_cryptodev_count(void)
 389 {
 390         return rte_cryptodev_globals->nb_devs;
 391 }
 392
 393 uint8_t
 394 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 395 {
 396         uint8_t i, dev_count = 0;
 397
 398         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 399                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 400                         rte_cryptodev_globals->devs[i].attached ==
 401                                         RTE_CRYPTODEV_ATTACHED)
 402                         dev_count++;
 403
 404         return dev_count;
 405 }
 406
 407 uint8_t
 408 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 409         uint8_t nb_devices)
 410 {
 411         uint8_t i, count = 0;
 412         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 413         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 414
 415         for (i = 0; i < max_devs && count < nb_devices; i++) {
 416
 417                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 418                         int cmp;
 419
 420                         cmp = strncmp(devs[i].device->driver->name,
 421                                         driver_name,
 422                                         strlen(driver_name));
 423
 424                         if (cmp == 0)
 425                                 devices[count++] = devs[i].data->dev_id;
 426                 }
 427         }
 428
 429         return count;
 430 }
 431
 432 int
 433 rte_cryptodev_socket_id(uint8_t dev_id)
 434 {
 435         struct rte_cryptodev *dev;
 436
 437         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 438                 return -1;
 439
 440         dev = rte_cryptodev_pmd_get_dev(dev_id);
 441
 442         return dev->data->socket_id;
 443 }
 444
 445 static inline int
 446 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 447                 int socket_id)
 448 {
 449         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 450         const struct rte_memzone *mz;
 451         int n;
 452
 453         /* generate memzone name */
 454         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 455         if (n >= (int)sizeof(mz_name))
 456                 return -EINVAL;
 457
 458         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 459                 mz = rte_memzone_reserve(mz_name,
 460                                 sizeof(struct rte_cryptodev_data),
 461                                 socket_id, 0);
 462         } else
 463                 mz = rte_memzone_lookup(mz_name);
 464
 465         if (mz == NULL)
 466                 return -ENOMEM;
 467
 468         *data = mz->addr;
 469         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 470                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 471
 472         return 0;
 473 }
 474
 475 static uint8_t
 476 rte_cryptodev_find_free_device_index(void)
 477 {
 478         uint8_t dev_id;
 479
 480         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 481                 if (rte_crypto_devices[dev_id].attached ==
 482                                 RTE_CRYPTODEV_DETACHED)
 483                         return dev_id;
 484         }
 485         return RTE_CRYPTO_MAX_DEVS;
 486 }
 487
 488 struct rte_cryptodev *
 489 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 490 {
 491         struct rte_cryptodev *cryptodev;
 492         uint8_t dev_id;
 493
 494         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 495                 CDEV_LOG_ERR("Crypto device with name %s already "
 496                                 "allocated!", name);
 497                 return NULL;
 498         }
 499
 500         dev_id = rte_cryptodev_find_free_device_index();
 501         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 502                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 503                 return NULL;
 504         }
 505
 506         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 507
 508         if (cryptodev->data == NULL) {
 509                 struct rte_cryptodev_data *cryptodev_data =
 510                                 cryptodev_globals.data[dev_id];
 511
 512                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 513                                 socket_id);
 514
 515                 if (retval < 0 || cryptodev_data == NULL)
 516                         return NULL;
 517
 518                 cryptodev->data = cryptodev_data;
 519
 520                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 521                                 "%s", name);
 522
 523                 cryptodev->data->dev_id = dev_id;
 524                 cryptodev->data->socket_id = socket_id;
 525                 cryptodev->data->dev_started = 0;
 526
 527                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 528
 529                 cryptodev_globals.nb_devs++;
 530         }
 531
 532         return cryptodev;
 533 }
 534
 535 int
 536 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 537 {
 538         int ret;
 539
 540         if (cryptodev == NULL)
 541                 return -EINVAL;
 542
 543         /* Close device only if device operations have been set */
 544         if (cryptodev->dev_ops) {
 545                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 546                 if (ret < 0)
 547                         return ret;
 548         }
 549
 550         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 551         cryptodev_globals.nb_devs--;
 552         return 0;
 553 }
 554
 555 uint16_t
 556 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 557 {
 558         struct rte_cryptodev *dev;
 559
 560         dev = &rte_crypto_devices[dev_id];
 561         return dev->data->nb_queue_pairs;
 562 }
 563
 564 static int
 565 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 566                 int socket_id)
 567 {
 568         struct rte_cryptodev_info dev_info;
 569         void **qp;
 570         unsigned i;
 571
 572         if ((dev == NULL) || (nb_qpairs < 1)) {
 573                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 574                                                         dev, nb_qpairs);
 575                 return -EINVAL;
 576         }
 577
 578         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 579                         nb_qpairs, dev->data->dev_id);
 580
 581         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 582
 583         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 584         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 585
 586         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 587                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 588                                 nb_qpairs, dev->data->dev_id);
 589             return -EINVAL;
 590         }
 591
 592         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 593                 dev->data->queue_pairs = rte_zmalloc_socket(
 594                                 "cryptodev->queue_pairs",
 595                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 596                                 RTE_CACHE_LINE_SIZE, socket_id);
 597
 598                 if (dev->data->queue_pairs == NULL) {
 599                         dev->data->nb_queue_pairs = 0;
 600                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 601                                                         "nb_queues %u",
 602                                                         nb_qpairs);
 603                         return -(ENOMEM);
 604                 }
 605         } else { /* re-configure */
 606                 int ret;
 607                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 608
 609                 qp = dev->data->queue_pairs;
 610
 611                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 612                                 -ENOTSUP);
 613
 614                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 615                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 616                         if (ret < 0)
 617                                 return ret;
 618                 }
 619
 620                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 621                                 RTE_CACHE_LINE_SIZE);
 622                 if (qp == NULL) {
 623                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 624                                                 " nb_queues %u", nb_qpairs);
 625                         return -(ENOMEM);
 626                 }
 627
 628                 if (nb_qpairs > old_nb_queues) {
 629                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 630
 631                         memset(qp + old_nb_queues, 0,
 632                                 sizeof(qp[0]) * new_qs);
 633                 }
 634
 635                 dev->data->queue_pairs = qp;
 636
 637         }
 638         dev->data->nb_queue_pairs = nb_qpairs;
 639         return 0;
 640 }
 641
 642 int
 643 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 644 {
 645         struct rte_cryptodev *dev;
 646
 647         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 648                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 649                 return -EINVAL;
 650         }
 651
 652         dev = &rte_crypto_devices[dev_id];
 653         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 654                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 655                 return -EINVAL;
 656         }
 657
 658         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 659
 660         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 661
 662 }
 663
 664 int
 665 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 666 {
 667         struct rte_cryptodev *dev;
 668
 669         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 670                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 671                 return -EINVAL;
 672         }
 673
 674         dev = &rte_crypto_devices[dev_id];
 675         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 676                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 677                 return -EINVAL;
 678         }
 679
 680         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 681
 682         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 683
 684 }
 685
 686 static int
 687 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 688                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 689
 690 int
 691 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 692 {
 693         struct rte_cryptodev *dev;
 694         int diag;
 695
 696         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 697                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 698                 return -EINVAL;
 699         }
 700
 701         dev = &rte_crypto_devices[dev_id];
 702
 703         if (dev->data->dev_started) {
 704                 CDEV_LOG_ERR(
 705                     "device %d must be stopped to allow configuration", dev_id);
 706                 return -EBUSY;
 707         }
 708
 709         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 710
 711         /* Setup new number of queue pairs and reconfigure device. */
 712         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 713                         config->socket_id);
 714         if (diag != 0) {
 715                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 716                                 dev_id, diag);
 717                 return diag;
 718         }
 719
 720         /* Setup Session mempool for device */
 721         diag = rte_cryptodev_sym_session_pool_create(dev,
 722                         config->session_mp.nb_objs,
 723                         config->session_mp.cache_size,
 724                         config->socket_id);
 725         if (diag != 0)
 726                 return diag;
 727
 728         return (*dev->dev_ops->dev_configure)(dev, config);
 729 }
 730
 731
 732 int
 733 rte_cryptodev_start(uint8_t dev_id)
 734 {
 735         struct rte_cryptodev *dev;
 736         int diag;
 737
 738         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 739
 740         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 741                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 742                 return -EINVAL;
 743         }
 744
 745         dev = &rte_crypto_devices[dev_id];
 746
 747         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 748
 749         if (dev->data->dev_started != 0) {
 750                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 751                         dev_id);
 752                 return 0;
 753         }
 754
 755         diag = (*dev->dev_ops->dev_start)(dev);
 756         if (diag == 0)
 757                 dev->data->dev_started = 1;
 758         else
 759                 return diag;
 760
 761         return 0;
 762 }
 763
 764 void
 765 rte_cryptodev_stop(uint8_t dev_id)
 766 {
 767         struct rte_cryptodev *dev;
 768
 769         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 770                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 771                 return;
 772         }
 773
 774         dev = &rte_crypto_devices[dev_id];
 775
 776         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 777
 778         if (dev->data->dev_started == 0) {
 779                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 780                         dev_id);
 781                 return;
 782         }
 783
 784         dev->data->dev_started = 0;
 785         (*dev->dev_ops->dev_stop)(dev);
 786 }
 787
 788 int
 789 rte_cryptodev_close(uint8_t dev_id)
 790 {
 791         struct rte_cryptodev *dev;
 792         int retval;
 793
 794         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 795                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 796                 return -1;
 797         }
 798
 799         dev = &rte_crypto_devices[dev_id];
 800
 801         /* Device must be stopped before it can be closed */
 802         if (dev->data->dev_started == 1) {
 803                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 804                                 dev_id);
 805                 return -EBUSY;
 806         }
 807
 808         /* We can't close the device if there are outstanding sessions in use */
 809         if (dev->data->session_pool != NULL) {
 810                 if (!rte_mempool_full(dev->data->session_pool)) {
 811                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 812                                         "has sessions still in use, free "
 813                                         "all sessions before calling close",
 814                                         (unsigned)dev_id);
 815                         return -EBUSY;
 816                 }
 817         }
 818
 819         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 820         retval = (*dev->dev_ops->dev_close)(dev);
 821
 822         if (retval < 0)
 823                 return retval;
 824
 825         return 0;
 826 }
 827
 828 int
 829 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 830                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 831 {
 832         struct rte_cryptodev *dev;
 833
 834         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 835                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 836                 return -EINVAL;
 837         }
 838
 839         dev = &rte_crypto_devices[dev_id];
 840         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 841                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 842                 return -EINVAL;
 843         }
 844
 845         if (dev->data->dev_started) {
 846                 CDEV_LOG_ERR(
 847                     "device %d must be stopped to allow configuration", dev_id);
 848                 return -EBUSY;
 849         }
 850
 851         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 852
 853         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 854                         socket_id);
 855 }
 856
 857
 858 int
 859 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 860 {
 861         struct rte_cryptodev *dev;
 862
 863         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 864                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 865                 return -ENODEV;
 866         }
 867
 868         if (stats == NULL) {
 869                 CDEV_LOG_ERR("Invalid stats ptr");
 870                 return -EINVAL;
 871         }
 872
 873         dev = &rte_crypto_devices[dev_id];
 874         memset(stats, 0, sizeof(*stats));
 875
 876         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 877         (*dev->dev_ops->stats_get)(dev, stats);
 878         return 0;
 879 }
 880
 881 void
 882 rte_cryptodev_stats_reset(uint8_t dev_id)
 883 {
 884         struct rte_cryptodev *dev;
 885
 886         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 887                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 888                 return;
 889         }
 890
 891         dev = &rte_crypto_devices[dev_id];
 892
 893         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 894         (*dev->dev_ops->stats_reset)(dev);
 895 }
 896
 897
 898 void
 899 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 900 {
 901         struct rte_cryptodev *dev;
 902
 903         if (dev_id >= cryptodev_globals.nb_devs) {
 904                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 905                 return;
 906         }
 907
 908         dev = &rte_crypto_devices[dev_id];
 909
 910         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 911
 912         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 913         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 914
 915         dev_info->driver_name = dev->device->driver->name;
 916 }
 917
 918
 919 int
 920 rte_cryptodev_callback_register(uint8_t dev_id,
 921                         enum rte_cryptodev_event_type event,
 922                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 923 {
 924         struct rte_cryptodev *dev;
 925         struct rte_cryptodev_callback *user_cb;
 926
 927         if (!cb_fn)
 928                 return -EINVAL;
 929
 930         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 931                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 932                 return -EINVAL;
 933         }
 934
 935         dev = &rte_crypto_devices[dev_id];
 936         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 937
 938         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 939                 if (user_cb->cb_fn == cb_fn &&
 940                         user_cb->cb_arg == cb_arg &&
 941                         user_cb->event == event) {
 942                         break;
 943                 }
 944         }
 945
 946         /* create a new callback. */
 947         if (user_cb == NULL) {
 948                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 949                                 sizeof(struct rte_cryptodev_callback), 0);
 950                 if (user_cb != NULL) {
 951                         user_cb->cb_fn = cb_fn;
 952                         user_cb->cb_arg = cb_arg;
 953                         user_cb->event = event;
 954                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
 955                 }
 956         }
 957
 958         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 959         return (user_cb == NULL) ? -ENOMEM : 0;
 960 }
 961
 962 int
 963 rte_cryptodev_callback_unregister(uint8_t dev_id,
 964                         enum rte_cryptodev_event_type event,
 965                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 966 {
 967         int ret;
 968         struct rte_cryptodev *dev;
 969         struct rte_cryptodev_callback *cb, *next;
 970
 971         if (!cb_fn)
 972                 return -EINVAL;
 973
 974         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 975                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 976                 return -EINVAL;
 977         }
 978
 979         dev = &rte_crypto_devices[dev_id];
 980         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 981
 982         ret = 0;
 983         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
 984
 985                 next = TAILQ_NEXT(cb, next);
 986
 987                 if (cb->cb_fn != cb_fn || cb->event != event ||
 988                                 (cb->cb_arg != (void *)-1 &&
 989                                 cb->cb_arg != cb_arg))
 990                         continue;
 991
 992                 /*
 993                  * if this callback is not executing right now,
 994                  * then remove it.
 995                  */
 996                 if (cb->active == 0) {
 997                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
 998                         rte_free(cb);
 999                 } else {
1000                         ret = -EAGAIN;
1001                 }
1002         }
1003
1004         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1005         return ret;
1006 }
1007
1008 void
1009 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1010         enum rte_cryptodev_event_type event)
1011 {
1012         struct rte_cryptodev_callback *cb_lst;
1013         struct rte_cryptodev_callback dev_cb;
1014
1015         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1016         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1017                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1018                         continue;
1019                 dev_cb = *cb_lst;
1020                 cb_lst->active = 1;
1021                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1022                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1023                                                 dev_cb.cb_arg);
1024                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1025                 cb_lst->active = 0;
1026         }
1027         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1028 }
1029
1030
1031 static void
1032 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1033                 void *opaque_arg,
1034                 void *_sess,
1035                 __rte_unused unsigned i)
1036 {
1037         struct rte_cryptodev_sym_session *sess = _sess;
1038         struct rte_cryptodev *dev = opaque_arg;
1039
1040         memset(sess, 0, mp->elt_size);
1041
1042         sess->dev_id = dev->data->dev_id;
1043         sess->dev_type = dev->dev_type;
1044         sess->mp = mp;
1045
1046         if (dev->dev_ops->session_initialize)
1047                 (*dev->dev_ops->session_initialize)(mp, sess);
1048 }
1049
1050 static int
1051 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1052                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1053 {
1054         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1055         unsigned priv_sess_size;
1056
1057         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1058                         dev->data->dev_id);
1059         if (n > sizeof(mp_name)) {
1060                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1061                 return -ENOMEM;
1062         }
1063
1064         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1065         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1066         if (priv_sess_size == 0) {
1067                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1068                                                 dev->data->name);
1069                 return -ENOMEM;
1070         }
1071
1072         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1073                         priv_sess_size;
1074
1075         dev->data->session_pool = rte_mempool_lookup(mp_name);
1076         if (dev->data->session_pool != NULL) {
1077                 if ((dev->data->session_pool->elt_size != elt_size) ||
1078                                 (dev->data->session_pool->cache_size <
1079                                 obj_cache_size) ||
1080                                 (dev->data->session_pool->size < nb_objs)) {
1081
1082                         CDEV_LOG_ERR("%s mempool already exists with different"
1083                                         " initialization parameters", mp_name);
1084                         dev->data->session_pool = NULL;
1085                         return -ENOMEM;
1086                 }
1087         } else {
1088                 dev->data->session_pool = rte_mempool_create(
1089                                 mp_name, /* mempool name */
1090                                 nb_objs, /* number of elements*/
1091                                 elt_size, /* element size*/
1092                                 obj_cache_size, /* Cache size*/
1093                                 0, /* private data size */
1094                                 NULL, /* obj initialization constructor */
1095                                 NULL, /* obj initialization constructor arg */
1096                                 rte_cryptodev_sym_session_init,
1097                                 /**< obj constructor*/
1098                                 dev, /* obj constructor arg */
1099                                 socket_id, /* socket id */
1100                                 0); /* flags */
1101
1102                 if (dev->data->session_pool == NULL) {
1103                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1104                         return -ENOMEM;
1105                 }
1106         }
1107
1108         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1109         return 0;
1110 }
1111
1112 struct rte_cryptodev_sym_session *
1113 rte_cryptodev_sym_session_create(uint8_t dev_id,
1114                 struct rte_crypto_sym_xform *xform)
1115 {
1116         struct rte_cryptodev *dev;
1117         struct rte_cryptodev_sym_session *sess;
1118         void *_sess;
1119
1120         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1121                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1122                 return NULL;
1123         }
1124
1125         dev = &rte_crypto_devices[dev_id];
1126
1127         /* Allocate a session structure from the session pool */
1128         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1129                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1130                 return NULL;
1131         }
1132
1133         sess = _sess;
1134
1135         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1136         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1137                         NULL) {
1138                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1139                                 dev_id);
1140
1141                 /* Return session to mempool */
1142                 rte_mempool_put(sess->mp, _sess);
1143                 return NULL;
1144         }
1145
1146         return sess;
1147 }
1148
1149 int
1150 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
1151                 struct rte_cryptodev_sym_session *sess)
1152 {
1153         struct rte_cryptodev *dev;
1154
1155         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1156                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1157                 return -EINVAL;
1158         }
1159
1160         dev = &rte_crypto_devices[sess->dev_id];
1161
1162         /* The API is optional, not returning error if driver do not suuport */
1163         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1164         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
1165                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1166                                 sess->dev_id, qp_id);
1167                 return -EPERM;
1168         }
1169
1170         return 0;
1171 }
1172
1173 int
1174 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
1175                 struct rte_cryptodev_sym_session *sess)
1176 {
1177         struct rte_cryptodev *dev;
1178
1179         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1180                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1181                 return -EINVAL;
1182         }
1183
1184         dev = &rte_crypto_devices[sess->dev_id];
1185
1186         /* The API is optional, not returning error if driver do not suuport */
1187         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1188         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
1189                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1190                                 sess->dev_id, qp_id);
1191                 return -EPERM;
1192         }
1193
1194         return 0;
1195 }
1196 struct rte_cryptodev_sym_session *
1197 rte_cryptodev_sym_session_free(uint8_t dev_id,
1198                 struct rte_cryptodev_sym_session *sess)
1199 {
1200         struct rte_cryptodev *dev;
1201
1202         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1203                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1204                 return sess;
1205         }
1206
1207         dev = &rte_crypto_devices[dev_id];
1208
1209         /* Check the session belongs to this device type */
1210         if (sess->dev_type != dev->dev_type)
1211                 return sess;
1212
1213         /* Let device implementation clear session material */
1214         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1215         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1216
1217         /* Return session to mempool */
1218         rte_mempool_put(sess->mp, (void *)sess);
1219
1220         return NULL;
1221 }
1222
1223 /** Initialise rte_crypto_op mempool element */
1224 static void
1225 rte_crypto_op_init(struct rte_mempool *mempool,
1226                 void *opaque_arg,
1227                 void *_op_data,
1228                 __rte_unused unsigned i)
1229 {
1230         struct rte_crypto_op *op = _op_data;
1231         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1232
1233         memset(_op_data, 0, mempool->elt_size);
1234
1235         __rte_crypto_op_reset(op, type);
1236
1237         op->phys_addr = rte_mem_virt2phy(_op_data);
1238         op->mempool = mempool;
1239 }
1240
1241
1242 struct rte_mempool *
1243 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1244                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1245                 int socket_id)
1246 {
1247         struct rte_crypto_op_pool_private *priv;
1248
1249         unsigned elt_size = sizeof(struct rte_crypto_op) +
1250                         sizeof(struct rte_crypto_sym_op) +
1251                         priv_size;
1252
1253         /* lookup mempool in case already allocated */
1254         struct rte_mempool *mp = rte_mempool_lookup(name);
1255
1256         if (mp != NULL) {
1257                 priv = (struct rte_crypto_op_pool_private *)
1258                                 rte_mempool_get_priv(mp);
1259
1260                 if (mp->elt_size != elt_size ||
1261                                 mp->cache_size < cache_size ||
1262                                 mp->size < nb_elts ||
1263                                 priv->priv_size <  priv_size) {
1264                         mp = NULL;
1265                         CDEV_LOG_ERR("Mempool %s already exists but with "
1266                                         "incompatible parameters", name);
1267                         return NULL;
1268                 }
1269                 return mp;
1270         }
1271
1272         mp = rte_mempool_create(
1273                         name,
1274                         nb_elts,
1275                         elt_size,
1276                         cache_size,
1277                         sizeof(struct rte_crypto_op_pool_private),
1278                         NULL,
1279                         NULL,
1280                         rte_crypto_op_init,
1281                         &type,
1282                         socket_id,
1283                         0);
1284
1285         if (mp == NULL) {
1286                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1287                 return NULL;
1288         }
1289
1290         priv = (struct rte_crypto_op_pool_private *)
1291                         rte_mempool_get_priv(mp);
1292
1293         priv->priv_size = priv_size;
1294         priv->type = type;
1295
1296         return mp;
1297 }
1298
1299 int
1300 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1301 {
1302         struct rte_cryptodev *dev = NULL;
1303         uint32_t i = 0;
1304
1305         if (name == NULL)
1306                 return -EINVAL;
1307
1308         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1309                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1310                                 "%s_%u", dev_name_prefix, i);
1311
1312                 if (ret < 0)
1313                         return ret;
1314
1315                 dev = rte_cryptodev_pmd_get_named_dev(name);
1316                 if (!dev)
1317                         return 0;
1318         }
1319
1320         return -1;
1321 }