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 static uint8_t nb_drivers;
  73
  74 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  75
  76 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  77
  78 static struct rte_cryptodev_global cryptodev_globals = {
  79                 .devs                   = &rte_crypto_devices[0],
  80                 .data                   = { NULL },
  81                 .nb_devs                = 0,
  82                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  83 };
  84
  85 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  86
  87 /* spinlock for crypto device callbacks */
  88 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  89
  90
  91 /**
  92  * The user application callback description.
  93  *
  94  * It contains callback address to be registered by user application,
  95  * the pointer to the parameters for callback, and the event type.
  96  */
  97 struct rte_cryptodev_callback {
  98         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  99         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
 100         void *cb_arg;                           /**< Parameter for callback */
 101         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
 102         uint32_t active;                        /**< Callback is executing */
 103 };
 104
 105 /**
 106  * The crypto cipher algorithm strings identifiers.
 107  * It could be used in application command line.
 108  */
 109 const char *
 110 rte_crypto_cipher_algorithm_strings[] = {
 111         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
 112         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
 113         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
 114
 115         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
 116         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
 117         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
 118         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
 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_CMAC]      = "aes-cmac",
 152         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 153         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 154
 155         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 156         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 157
 158         [RTE_CRYPTO_AUTH_NULL]          = "null",
 159
 160         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 161         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 162
 163         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 164         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 165         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 166         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 167         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 168         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 169         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 170         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 171
 172         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 173         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 174         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 175 };
 176
 177 /**
 178  * The crypto AEAD algorithm strings identifiers.
 179  * It could be used in application command line.
 180  */
 181 const char *
 182 rte_crypto_aead_algorithm_strings[] = {
 183         [RTE_CRYPTO_AEAD_AES_CCM]       = "aes-ccm",
 184         [RTE_CRYPTO_AEAD_AES_GCM]       = "aes-gcm",
 185 };
 186
 187 /**
 188  * The crypto AEAD operation strings identifiers.
 189  * It could be used in application command line.
 190  */
 191 const char *
 192 rte_crypto_aead_operation_strings[] = {
 193         [RTE_CRYPTO_AEAD_OP_ENCRYPT]    = "encrypt",
 194         [RTE_CRYPTO_AEAD_OP_DECRYPT]    = "decrypt"
 195 };
 196
 197 int
 198 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 199                 const char *algo_string)
 200 {
 201         unsigned int i;
 202
 203         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 204                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 205                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 206                         return 0;
 207                 }
 208         }
 209
 210         /* Invalid string */
 211         return -1;
 212 }
 213
 214 int
 215 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 216                 const char *algo_string)
 217 {
 218         unsigned int i;
 219
 220         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 221                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 222                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 223                         return 0;
 224                 }
 225         }
 226
 227         /* Invalid string */
 228         return -1;
 229 }
 230
 231 int
 232 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
 233                 const char *algo_string)
 234 {
 235         unsigned int i;
 236
 237         for (i = 1; i < RTE_DIM(rte_crypto_aead_algorithm_strings); i++) {
 238                 if (strcmp(algo_string, rte_crypto_aead_algorithm_strings[i]) == 0) {
 239                         *algo_enum = (enum rte_crypto_aead_algorithm) i;
 240                         return 0;
 241                 }
 242         }
 243
 244         /* Invalid string */
 245         return -1;
 246 }
 247
 248 /**
 249  * The crypto auth operation strings identifiers.
 250  * It could be used in application command line.
 251  */
 252 const char *
 253 rte_crypto_auth_operation_strings[] = {
 254                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 255                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 256 };
 257
 258 const struct rte_cryptodev_symmetric_capability *
 259 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 260                 const struct rte_cryptodev_sym_capability_idx *idx)
 261 {
 262         const struct rte_cryptodev_capabilities *capability;
 263         struct rte_cryptodev_info dev_info;
 264         int i = 0;
 265
 266         rte_cryptodev_info_get(dev_id, &dev_info);
 267
 268         while ((capability = &dev_info.capabilities[i++])->op !=
 269                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 270                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 271                         continue;
 272
 273                 if (capability->sym.xform_type != idx->type)
 274                         continue;
 275
 276                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 277                         capability->sym.auth.algo == idx->algo.auth)
 278                         return &capability->sym;
 279
 280                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 281                         capability->sym.cipher.algo == idx->algo.cipher)
 282                         return &capability->sym;
 283
 284                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AEAD &&
 285                                 capability->sym.aead.algo == idx->algo.aead)
 286                         return &capability->sym;
 287         }
 288
 289         return NULL;
 290
 291 }
 292
 293 #define param_range_check(x, y) \
 294         (((x < y.min) || (x > y.max)) || \
 295         (y.increment != 0 && (x % y.increment) != 0))
 296
 297 int
 298 rte_cryptodev_sym_capability_check_cipher(
 299                 const struct rte_cryptodev_symmetric_capability *capability,
 300                 uint16_t key_size, uint16_t iv_size)
 301 {
 302         if (param_range_check(key_size, capability->cipher.key_size))
 303                 return -1;
 304
 305         if (param_range_check(iv_size, capability->cipher.iv_size))
 306                 return -1;
 307
 308         return 0;
 309 }
 310
 311 int
 312 rte_cryptodev_sym_capability_check_auth(
 313                 const struct rte_cryptodev_symmetric_capability *capability,
 314                 uint16_t key_size, uint16_t digest_size, uint16_t iv_size)
 315 {
 316         if (param_range_check(key_size, capability->auth.key_size))
 317                 return -1;
 318
 319         if (param_range_check(digest_size, capability->auth.digest_size))
 320                 return -1;
 321
 322         if (param_range_check(iv_size, capability->auth.iv_size))
 323                 return -1;
 324
 325         return 0;
 326 }
 327
 328 int
 329 rte_cryptodev_sym_capability_check_aead(
 330                 const struct rte_cryptodev_symmetric_capability *capability,
 331                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 332                 uint16_t iv_size)
 333 {
 334         if (param_range_check(key_size, capability->aead.key_size))
 335                 return -1;
 336
 337         if (param_range_check(digest_size, capability->aead.digest_size))
 338                 return -1;
 339
 340         if (param_range_check(aad_size, capability->aead.aad_size))
 341                 return -1;
 342
 343         if (param_range_check(iv_size, capability->aead.iv_size))
 344                 return -1;
 345
 346         return 0;
 347 }
 348
 349 const char *
 350 rte_cryptodev_get_feature_name(uint64_t flag)
 351 {
 352         switch (flag) {
 353         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 354                 return "SYMMETRIC_CRYPTO";
 355         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 356                 return "ASYMMETRIC_CRYPTO";
 357         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 358                 return "SYM_OPERATION_CHAINING";
 359         case RTE_CRYPTODEV_FF_CPU_SSE:
 360                 return "CPU_SSE";
 361         case RTE_CRYPTODEV_FF_CPU_AVX:
 362                 return "CPU_AVX";
 363         case RTE_CRYPTODEV_FF_CPU_AVX2:
 364                 return "CPU_AVX2";
 365         case RTE_CRYPTODEV_FF_CPU_AVX512:
 366                 return "CPU_AVX512";
 367         case RTE_CRYPTODEV_FF_CPU_AESNI:
 368                 return "CPU_AESNI";
 369         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 370                 return "HW_ACCELERATED";
 371         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 372                 return "MBUF_SCATTER_GATHER";
 373         case RTE_CRYPTODEV_FF_CPU_NEON:
 374                 return "CPU_NEON";
 375         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 376                 return "CPU_ARM_CE";
 377         default:
 378                 return NULL;
 379         }
 380 }
 381
 382 struct rte_cryptodev *
 383 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 384 {
 385         return &rte_cryptodev_globals->devs[dev_id];
 386 }
 387
 388 struct rte_cryptodev *
 389 rte_cryptodev_pmd_get_named_dev(const char *name)
 390 {
 391         struct rte_cryptodev *dev;
 392         unsigned int i;
 393
 394         if (name == NULL)
 395                 return NULL;
 396
 397         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 398                 dev = &rte_cryptodev_globals->devs[i];
 399
 400                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 401                                 (strcmp(dev->data->name, name) == 0))
 402                         return dev;
 403         }
 404
 405         return NULL;
 406 }
 407
 408 unsigned int
 409 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 410 {
 411         struct rte_cryptodev *dev = NULL;
 412
 413         if (dev_id >= rte_cryptodev_globals->nb_devs)
 414                 return 0;
 415
 416         dev = rte_cryptodev_pmd_get_dev(dev_id);
 417         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 418                 return 0;
 419         else
 420                 return 1;
 421 }
 422
 423
 424 int
 425 rte_cryptodev_get_dev_id(const char *name)
 426 {
 427         unsigned i;
 428
 429         if (name == NULL)
 430                 return -1;
 431
 432         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 433                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 434                                 == 0) &&
 435                                 (rte_cryptodev_globals->devs[i].attached ==
 436                                                 RTE_CRYPTODEV_ATTACHED))
 437                         return i;
 438
 439         return -1;
 440 }
 441
 442 uint8_t
 443 rte_cryptodev_count(void)
 444 {
 445         return rte_cryptodev_globals->nb_devs;
 446 }
 447
 448 uint8_t
 449 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 450 {
 451         uint8_t i, dev_count = 0;
 452
 453         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 454                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 455                         rte_cryptodev_globals->devs[i].attached ==
 456                                         RTE_CRYPTODEV_ATTACHED)
 457                         dev_count++;
 458
 459         return dev_count;
 460 }
 461
 462 uint8_t
 463 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 464         uint8_t nb_devices)
 465 {
 466         uint8_t i, count = 0;
 467         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 468         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 469
 470         for (i = 0; i < max_devs && count < nb_devices; i++) {
 471
 472                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 473                         int cmp;
 474
 475                         cmp = strncmp(devs[i].device->driver->name,
 476                                         driver_name,
 477                                         strlen(driver_name));
 478
 479                         if (cmp == 0)
 480                                 devices[count++] = devs[i].data->dev_id;
 481                 }
 482         }
 483
 484         return count;
 485 }
 486
 487 void *
 488 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 489 {
 490         if (rte_crypto_devices[dev_id].feature_flags &
 491                         RTE_CRYPTODEV_FF_SECURITY)
 492                 return rte_crypto_devices[dev_id].security_ctx;
 493
 494         return NULL;
 495 }
 496
 497 int
 498 rte_cryptodev_socket_id(uint8_t dev_id)
 499 {
 500         struct rte_cryptodev *dev;
 501
 502         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 503                 return -1;
 504
 505         dev = rte_cryptodev_pmd_get_dev(dev_id);
 506
 507         return dev->data->socket_id;
 508 }
 509
 510 static inline int
 511 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 512                 int socket_id)
 513 {
 514         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 515         const struct rte_memzone *mz;
 516         int n;
 517
 518         /* generate memzone name */
 519         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 520         if (n >= (int)sizeof(mz_name))
 521                 return -EINVAL;
 522
 523         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 524                 mz = rte_memzone_reserve(mz_name,
 525                                 sizeof(struct rte_cryptodev_data),
 526                                 socket_id, 0);
 527         } else
 528                 mz = rte_memzone_lookup(mz_name);
 529
 530         if (mz == NULL)
 531                 return -ENOMEM;
 532
 533         *data = mz->addr;
 534         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 535                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 536
 537         return 0;
 538 }
 539
 540 static uint8_t
 541 rte_cryptodev_find_free_device_index(void)
 542 {
 543         uint8_t dev_id;
 544
 545         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 546                 if (rte_crypto_devices[dev_id].attached ==
 547                                 RTE_CRYPTODEV_DETACHED)
 548                         return dev_id;
 549         }
 550         return RTE_CRYPTO_MAX_DEVS;
 551 }
 552
 553 struct rte_cryptodev *
 554 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 555 {
 556         struct rte_cryptodev *cryptodev;
 557         uint8_t dev_id;
 558
 559         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 560                 CDEV_LOG_ERR("Crypto device with name %s already "
 561                                 "allocated!", name);
 562                 return NULL;
 563         }
 564
 565         dev_id = rte_cryptodev_find_free_device_index();
 566         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 567                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 568                 return NULL;
 569         }
 570
 571         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 572
 573         if (cryptodev->data == NULL) {
 574                 struct rte_cryptodev_data *cryptodev_data =
 575                                 cryptodev_globals.data[dev_id];
 576
 577                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 578                                 socket_id);
 579
 580                 if (retval < 0 || cryptodev_data == NULL)
 581                         return NULL;
 582
 583                 cryptodev->data = cryptodev_data;
 584
 585                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 586                                 "%s", name);
 587
 588                 cryptodev->data->dev_id = dev_id;
 589                 cryptodev->data->socket_id = socket_id;
 590                 cryptodev->data->dev_started = 0;
 591
 592                 /* init user callbacks */
 593                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 594
 595                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 596
 597                 cryptodev_globals.nb_devs++;
 598         }
 599
 600         return cryptodev;
 601 }
 602
 603 int
 604 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 605 {
 606         int ret;
 607
 608         if (cryptodev == NULL)
 609                 return -EINVAL;
 610
 611         /* Close device only if device operations have been set */
 612         if (cryptodev->dev_ops) {
 613                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 614                 if (ret < 0)
 615                         return ret;
 616         }
 617
 618         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 619         cryptodev_globals.nb_devs--;
 620         return 0;
 621 }
 622
 623 uint16_t
 624 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 625 {
 626         struct rte_cryptodev *dev;
 627
 628         dev = &rte_crypto_devices[dev_id];
 629         return dev->data->nb_queue_pairs;
 630 }
 631
 632 static int
 633 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 634                 int socket_id)
 635 {
 636         struct rte_cryptodev_info dev_info;
 637         void **qp;
 638         unsigned i;
 639
 640         if ((dev == NULL) || (nb_qpairs < 1)) {
 641                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 642                                                         dev, nb_qpairs);
 643                 return -EINVAL;
 644         }
 645
 646         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 647                         nb_qpairs, dev->data->dev_id);
 648
 649         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 650
 651         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 652         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 653
 654         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 655                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 656                                 nb_qpairs, dev->data->dev_id);
 657             return -EINVAL;
 658         }
 659
 660         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 661                 dev->data->queue_pairs = rte_zmalloc_socket(
 662                                 "cryptodev->queue_pairs",
 663                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 664                                 RTE_CACHE_LINE_SIZE, socket_id);
 665
 666                 if (dev->data->queue_pairs == NULL) {
 667                         dev->data->nb_queue_pairs = 0;
 668                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 669                                                         "nb_queues %u",
 670                                                         nb_qpairs);
 671                         return -(ENOMEM);
 672                 }
 673         } else { /* re-configure */
 674                 int ret;
 675                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 676
 677                 qp = dev->data->queue_pairs;
 678
 679                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 680                                 -ENOTSUP);
 681
 682                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 683                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 684                         if (ret < 0)
 685                                 return ret;
 686                 }
 687
 688                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 689                                 RTE_CACHE_LINE_SIZE);
 690                 if (qp == NULL) {
 691                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 692                                                 " nb_queues %u", nb_qpairs);
 693                         return -(ENOMEM);
 694                 }
 695
 696                 if (nb_qpairs > old_nb_queues) {
 697                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 698
 699                         memset(qp + old_nb_queues, 0,
 700                                 sizeof(qp[0]) * new_qs);
 701                 }
 702
 703                 dev->data->queue_pairs = qp;
 704
 705         }
 706         dev->data->nb_queue_pairs = nb_qpairs;
 707         return 0;
 708 }
 709
 710 int
 711 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 712 {
 713         struct rte_cryptodev *dev;
 714
 715         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 716                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 717                 return -EINVAL;
 718         }
 719
 720         dev = &rte_crypto_devices[dev_id];
 721         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 722                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 723                 return -EINVAL;
 724         }
 725
 726         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 727
 728         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 729
 730 }
 731
 732 int
 733 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 734 {
 735         struct rte_cryptodev *dev;
 736
 737         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 738                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 739                 return -EINVAL;
 740         }
 741
 742         dev = &rte_crypto_devices[dev_id];
 743         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 744                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 745                 return -EINVAL;
 746         }
 747
 748         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 749
 750         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 751
 752 }
 753
 754 int
 755 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 756 {
 757         struct rte_cryptodev *dev;
 758         int diag;
 759
 760         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 761                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 762                 return -EINVAL;
 763         }
 764
 765         dev = &rte_crypto_devices[dev_id];
 766
 767         if (dev->data->dev_started) {
 768                 CDEV_LOG_ERR(
 769                     "device %d must be stopped to allow configuration", dev_id);
 770                 return -EBUSY;
 771         }
 772
 773         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 774
 775         /* Setup new number of queue pairs and reconfigure device. */
 776         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 777                         config->socket_id);
 778         if (diag != 0) {
 779                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 780                                 dev_id, diag);
 781                 return diag;
 782         }
 783
 784         return (*dev->dev_ops->dev_configure)(dev, config);
 785 }
 786
 787
 788 int
 789 rte_cryptodev_start(uint8_t dev_id)
 790 {
 791         struct rte_cryptodev *dev;
 792         int diag;
 793
 794         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 795
 796         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 797                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 798                 return -EINVAL;
 799         }
 800
 801         dev = &rte_crypto_devices[dev_id];
 802
 803         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 804
 805         if (dev->data->dev_started != 0) {
 806                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 807                         dev_id);
 808                 return 0;
 809         }
 810
 811         diag = (*dev->dev_ops->dev_start)(dev);
 812         if (diag == 0)
 813                 dev->data->dev_started = 1;
 814         else
 815                 return diag;
 816
 817         return 0;
 818 }
 819
 820 void
 821 rte_cryptodev_stop(uint8_t dev_id)
 822 {
 823         struct rte_cryptodev *dev;
 824
 825         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 826                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 827                 return;
 828         }
 829
 830         dev = &rte_crypto_devices[dev_id];
 831
 832         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 833
 834         if (dev->data->dev_started == 0) {
 835                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 836                         dev_id);
 837                 return;
 838         }
 839
 840         (*dev->dev_ops->dev_stop)(dev);
 841         dev->data->dev_started = 0;
 842 }
 843
 844 int
 845 rte_cryptodev_close(uint8_t dev_id)
 846 {
 847         struct rte_cryptodev *dev;
 848         int retval;
 849
 850         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 851                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 852                 return -1;
 853         }
 854
 855         dev = &rte_crypto_devices[dev_id];
 856
 857         /* Device must be stopped before it can be closed */
 858         if (dev->data->dev_started == 1) {
 859                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 860                                 dev_id);
 861                 return -EBUSY;
 862         }
 863
 864         /* We can't close the device if there are outstanding sessions in use */
 865         if (dev->data->session_pool != NULL) {
 866                 if (!rte_mempool_full(dev->data->session_pool)) {
 867                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 868                                         "has sessions still in use, free "
 869                                         "all sessions before calling close",
 870                                         (unsigned)dev_id);
 871                         return -EBUSY;
 872                 }
 873         }
 874
 875         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 876         retval = (*dev->dev_ops->dev_close)(dev);
 877
 878         if (retval < 0)
 879                 return retval;
 880
 881         return 0;
 882 }
 883
 884 int
 885 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 886                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
 887                 struct rte_mempool *session_pool)
 888
 889 {
 890         struct rte_cryptodev *dev;
 891
 892         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 893                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 894                 return -EINVAL;
 895         }
 896
 897         dev = &rte_crypto_devices[dev_id];
 898         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 899                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 900                 return -EINVAL;
 901         }
 902
 903         if (dev->data->dev_started) {
 904                 CDEV_LOG_ERR(
 905                     "device %d must be stopped to allow configuration", dev_id);
 906                 return -EBUSY;
 907         }
 908
 909         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 910
 911         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 912                         socket_id, session_pool);
 913 }
 914
 915
 916 int
 917 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 918 {
 919         struct rte_cryptodev *dev;
 920
 921         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 922                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 923                 return -ENODEV;
 924         }
 925
 926         if (stats == NULL) {
 927                 CDEV_LOG_ERR("Invalid stats ptr");
 928                 return -EINVAL;
 929         }
 930
 931         dev = &rte_crypto_devices[dev_id];
 932         memset(stats, 0, sizeof(*stats));
 933
 934         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 935         (*dev->dev_ops->stats_get)(dev, stats);
 936         return 0;
 937 }
 938
 939 void
 940 rte_cryptodev_stats_reset(uint8_t dev_id)
 941 {
 942         struct rte_cryptodev *dev;
 943
 944         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 945                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 946                 return;
 947         }
 948
 949         dev = &rte_crypto_devices[dev_id];
 950
 951         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 952         (*dev->dev_ops->stats_reset)(dev);
 953 }
 954
 955
 956 void
 957 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 958 {
 959         struct rte_cryptodev *dev;
 960
 961         if (dev_id >= cryptodev_globals.nb_devs) {
 962                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 963                 return;
 964         }
 965
 966         dev = &rte_crypto_devices[dev_id];
 967
 968         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 969
 970         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 971         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 972
 973         dev_info->driver_name = dev->device->driver->name;
 974 }
 975
 976
 977 int
 978 rte_cryptodev_callback_register(uint8_t dev_id,
 979                         enum rte_cryptodev_event_type event,
 980                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 981 {
 982         struct rte_cryptodev *dev;
 983         struct rte_cryptodev_callback *user_cb;
 984
 985         if (!cb_fn)
 986                 return -EINVAL;
 987
 988         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 989                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 990                 return -EINVAL;
 991         }
 992
 993         dev = &rte_crypto_devices[dev_id];
 994         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 995
 996         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 997                 if (user_cb->cb_fn == cb_fn &&
 998                         user_cb->cb_arg == cb_arg &&
 999                         user_cb->event == event) {
1000                         break;
1001                 }
1002         }
1003
1004         /* create a new callback. */
1005         if (user_cb == NULL) {
1006                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1007                                 sizeof(struct rte_cryptodev_callback), 0);
1008                 if (user_cb != NULL) {
1009                         user_cb->cb_fn = cb_fn;
1010                         user_cb->cb_arg = cb_arg;
1011                         user_cb->event = event;
1012                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1013                 }
1014         }
1015
1016         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1017         return (user_cb == NULL) ? -ENOMEM : 0;
1018 }
1019
1020 int
1021 rte_cryptodev_callback_unregister(uint8_t dev_id,
1022                         enum rte_cryptodev_event_type event,
1023                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1024 {
1025         int ret;
1026         struct rte_cryptodev *dev;
1027         struct rte_cryptodev_callback *cb, *next;
1028
1029         if (!cb_fn)
1030                 return -EINVAL;
1031
1032         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1033                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1034                 return -EINVAL;
1035         }
1036
1037         dev = &rte_crypto_devices[dev_id];
1038         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1039
1040         ret = 0;
1041         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1042
1043                 next = TAILQ_NEXT(cb, next);
1044
1045                 if (cb->cb_fn != cb_fn || cb->event != event ||
1046                                 (cb->cb_arg != (void *)-1 &&
1047                                 cb->cb_arg != cb_arg))
1048                         continue;
1049
1050                 /*
1051                  * if this callback is not executing right now,
1052                  * then remove it.
1053                  */
1054                 if (cb->active == 0) {
1055                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1056                         rte_free(cb);
1057                 } else {
1058                         ret = -EAGAIN;
1059                 }
1060         }
1061
1062         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1063         return ret;
1064 }
1065
1066 void
1067 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1068         enum rte_cryptodev_event_type event)
1069 {
1070         struct rte_cryptodev_callback *cb_lst;
1071         struct rte_cryptodev_callback dev_cb;
1072
1073         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1074         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1075                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1076                         continue;
1077                 dev_cb = *cb_lst;
1078                 cb_lst->active = 1;
1079                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1080                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1081                                                 dev_cb.cb_arg);
1082                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1083                 cb_lst->active = 0;
1084         }
1085         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1086 }
1087
1088
1089 int
1090 rte_cryptodev_sym_session_init(uint8_t dev_id,
1091                 struct rte_cryptodev_sym_session *sess,
1092                 struct rte_crypto_sym_xform *xforms,
1093                 struct rte_mempool *mp)
1094 {
1095         struct rte_cryptodev *dev;
1096         uint8_t index;
1097         int ret;
1098
1099         dev = rte_cryptodev_pmd_get_dev(dev_id);
1100
1101         if (sess == NULL || xforms == NULL || dev == NULL)
1102                 return -EINVAL;
1103
1104         index = dev->driver_id;
1105
1106         if (sess->sess_private_data[index] == NULL) {
1107                 ret = dev->dev_ops->session_configure(dev, xforms, sess, mp);
1108                 if (ret < 0) {
1109                         CDEV_LOG_ERR(
1110                                 "dev_id %d failed to configure session details",
1111                                 dev_id);
1112                         return ret;
1113                 }
1114         }
1115
1116         return 0;
1117 }
1118
1119 struct rte_cryptodev_sym_session *
1120 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1121 {
1122         struct rte_cryptodev_sym_session *sess;
1123
1124         /* Allocate a session structure from the session pool */
1125         if (rte_mempool_get(mp, (void **)&sess)) {
1126                 CDEV_LOG_ERR("couldn't get object from session mempool");
1127                 return NULL;
1128         }
1129
1130         /* Clear device session pointer */
1131         memset(sess, 0, (sizeof(void *) * nb_drivers));
1132
1133         return sess;
1134 }
1135
1136 int
1137 rte_cryptodev_queue_pair_attach_sym_session(uint8_t dev_id, uint16_t qp_id,
1138                 struct rte_cryptodev_sym_session *sess)
1139 {
1140         struct rte_cryptodev *dev;
1141
1142         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1143                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1144                 return -EINVAL;
1145         }
1146
1147         dev = &rte_crypto_devices[dev_id];
1148
1149         /* The API is optional, not returning error if driver do not suuport */
1150         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1151
1152         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1153
1154         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess_priv)) {
1155                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1156                                 dev_id, qp_id);
1157                 return -EPERM;
1158         }
1159
1160         return 0;
1161 }
1162
1163 int
1164 rte_cryptodev_queue_pair_detach_sym_session(uint8_t dev_id, uint16_t qp_id,
1165                 struct rte_cryptodev_sym_session *sess)
1166 {
1167         struct rte_cryptodev *dev;
1168
1169         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1170                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1171                 return -EINVAL;
1172         }
1173
1174         dev = &rte_crypto_devices[dev_id];
1175
1176         /* The API is optional, not returning error if driver do not suuport */
1177         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1178
1179         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1180
1181         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess_priv)) {
1182                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1183                                 dev_id, qp_id);
1184                 return -EPERM;
1185         }
1186
1187         return 0;
1188 }
1189
1190 int
1191 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1192                 struct rte_cryptodev_sym_session *sess)
1193 {
1194         struct rte_cryptodev *dev;
1195
1196         dev = rte_cryptodev_pmd_get_dev(dev_id);
1197
1198         if (dev == NULL || sess == NULL)
1199                 return -EINVAL;
1200
1201         dev->dev_ops->session_clear(dev, sess);
1202
1203         return 0;
1204 }
1205
1206 int
1207 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1208 {
1209         uint8_t i;
1210         void *sess_priv;
1211         struct rte_mempool *sess_mp;
1212
1213         if (sess == NULL)
1214                 return -EINVAL;
1215
1216         /* Check that all device private data has been freed */
1217         for (i = 0; i < nb_drivers; i++) {
1218                 sess_priv = get_session_private_data(sess, i);
1219                 if (sess_priv != NULL)
1220                         return -EBUSY;
1221         }
1222
1223         /* Return session to mempool */
1224         sess_mp = rte_mempool_from_obj(sess);
1225         rte_mempool_put(sess_mp, sess);
1226
1227         return 0;
1228 }
1229
1230 unsigned int
1231 rte_cryptodev_get_header_session_size(void)
1232 {
1233         /*
1234          * Header contains pointers to the private data
1235          * of all registered drivers
1236          */
1237         return (sizeof(void *) * nb_drivers);
1238 }
1239
1240 unsigned int
1241 rte_cryptodev_get_private_session_size(uint8_t dev_id)
1242 {
1243         struct rte_cryptodev *dev;
1244         unsigned int header_size = sizeof(void *) * nb_drivers;
1245         unsigned int priv_sess_size;
1246
1247         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1248                 return 0;
1249
1250         dev = rte_cryptodev_pmd_get_dev(dev_id);
1251
1252         if (*dev->dev_ops->session_get_size == NULL)
1253                 return 0;
1254
1255         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1256
1257         /*
1258          * If size is less than session header size,
1259          * return the latter, as this guarantees that
1260          * sessionless operations will work
1261          */
1262         if (priv_sess_size < header_size)
1263                 return header_size;
1264
1265         return priv_sess_size;
1266
1267 }
1268
1269 /** Initialise rte_crypto_op mempool element */
1270 static void
1271 rte_crypto_op_init(struct rte_mempool *mempool,
1272                 void *opaque_arg,
1273                 void *_op_data,
1274                 __rte_unused unsigned i)
1275 {
1276         struct rte_crypto_op *op = _op_data;
1277         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1278
1279         memset(_op_data, 0, mempool->elt_size);
1280
1281         __rte_crypto_op_reset(op, type);
1282
1283         op->phys_addr = rte_mem_virt2iova(_op_data);
1284         op->mempool = mempool;
1285 }
1286
1287
1288 struct rte_mempool *
1289 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1290                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1291                 int socket_id)
1292 {
1293         struct rte_crypto_op_pool_private *priv;
1294
1295         unsigned elt_size = sizeof(struct rte_crypto_op) +
1296                         sizeof(struct rte_crypto_sym_op) +
1297                         priv_size;
1298
1299         /* lookup mempool in case already allocated */
1300         struct rte_mempool *mp = rte_mempool_lookup(name);
1301
1302         if (mp != NULL) {
1303                 priv = (struct rte_crypto_op_pool_private *)
1304                                 rte_mempool_get_priv(mp);
1305
1306                 if (mp->elt_size != elt_size ||
1307                                 mp->cache_size < cache_size ||
1308                                 mp->size < nb_elts ||
1309                                 priv->priv_size <  priv_size) {
1310                         mp = NULL;
1311                         CDEV_LOG_ERR("Mempool %s already exists but with "
1312                                         "incompatible parameters", name);
1313                         return NULL;
1314                 }
1315                 return mp;
1316         }
1317
1318         mp = rte_mempool_create(
1319                         name,
1320                         nb_elts,
1321                         elt_size,
1322                         cache_size,
1323                         sizeof(struct rte_crypto_op_pool_private),
1324                         NULL,
1325                         NULL,
1326                         rte_crypto_op_init,
1327                         &type,
1328                         socket_id,
1329                         0);
1330
1331         if (mp == NULL) {
1332                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1333                 return NULL;
1334         }
1335
1336         priv = (struct rte_crypto_op_pool_private *)
1337                         rte_mempool_get_priv(mp);
1338
1339         priv->priv_size = priv_size;
1340         priv->type = type;
1341
1342         return mp;
1343 }
1344
1345 int
1346 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1347 {
1348         struct rte_cryptodev *dev = NULL;
1349         uint32_t i = 0;
1350
1351         if (name == NULL)
1352                 return -EINVAL;
1353
1354         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1355                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1356                                 "%s_%u", dev_name_prefix, i);
1357
1358                 if (ret < 0)
1359                         return ret;
1360
1361                 dev = rte_cryptodev_pmd_get_named_dev(name);
1362                 if (!dev)
1363                         return 0;
1364         }
1365
1366         return -1;
1367 }
1368
1369 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1370
1371 static struct cryptodev_driver_list cryptodev_driver_list =
1372         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1373
1374 int
1375 rte_cryptodev_driver_id_get(const char *name)
1376 {
1377         struct cryptodev_driver *driver;
1378         const char *driver_name;
1379
1380         if (name == NULL) {
1381                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1382                 return -1;
1383         }
1384
1385         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1386                 driver_name = driver->driver->name;
1387                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1388                         return driver->id;
1389         }
1390         return -1;
1391 }
1392
1393 const char *
1394 rte_cryptodev_name_get(uint8_t dev_id)
1395 {
1396         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1397
1398         if (dev == NULL)
1399                 return NULL;
1400
1401         return dev->data->name;
1402 }
1403
1404 const char *
1405 rte_cryptodev_driver_name_get(uint8_t driver_id)
1406 {
1407         struct cryptodev_driver *driver;
1408
1409         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1410                 if (driver->id == driver_id)
1411                         return driver->driver->name;
1412         return NULL;
1413 }
1414
1415 uint8_t
1416 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1417                 const struct rte_driver *drv)
1418 {
1419         crypto_drv->driver = drv;
1420         crypto_drv->id = nb_drivers;
1421
1422         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1423
1424         return nb_drivers++;
1425 }