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 static int
 294 param_range_check(uint16_t size, const struct rte_crypto_param_range *range)
 295 {
 296         unsigned int next_size;
 297
 298         /* Check lower/upper bounds */
 299         if (size < range->min)
 300                 return -1;
 301
 302         if (size > range->max)
 303                 return -1;
 304
 305         /* If range is actually only one value, size is correct */
 306         if (range->increment == 0)
 307                 return 0;
 308
 309         /* Check if value is one of the supported sizes */
 310         for (next_size = range->min; next_size <= range->max;
 311                         next_size += range->increment)
 312                 if (size == next_size)
 313                         return 0;
 314
 315         return -1;
 316 }
 317
 318 int
 319 rte_cryptodev_sym_capability_check_cipher(
 320                 const struct rte_cryptodev_symmetric_capability *capability,
 321                 uint16_t key_size, uint16_t iv_size)
 322 {
 323         if (param_range_check(key_size, &capability->cipher.key_size) != 0)
 324                 return -1;
 325
 326         if (param_range_check(iv_size, &capability->cipher.iv_size) != 0)
 327                 return -1;
 328
 329         return 0;
 330 }
 331
 332 int
 333 rte_cryptodev_sym_capability_check_auth(
 334                 const struct rte_cryptodev_symmetric_capability *capability,
 335                 uint16_t key_size, uint16_t digest_size, uint16_t iv_size)
 336 {
 337         if (param_range_check(key_size, &capability->auth.key_size) != 0)
 338                 return -1;
 339
 340         if (param_range_check(digest_size, &capability->auth.digest_size) != 0)
 341                 return -1;
 342
 343         if (param_range_check(iv_size, &capability->auth.iv_size) != 0)
 344                 return -1;
 345
 346         return 0;
 347 }
 348
 349 int
 350 rte_cryptodev_sym_capability_check_aead(
 351                 const struct rte_cryptodev_symmetric_capability *capability,
 352                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 353                 uint16_t iv_size)
 354 {
 355         if (param_range_check(key_size, &capability->aead.key_size) != 0)
 356                 return -1;
 357
 358         if (param_range_check(digest_size, &capability->aead.digest_size) != 0)
 359                 return -1;
 360
 361         if (param_range_check(aad_size, &capability->aead.aad_size) != 0)
 362                 return -1;
 363
 364         if (param_range_check(iv_size, &capability->aead.iv_size) != 0)
 365                 return -1;
 366
 367         return 0;
 368 }
 369
 370 const char *
 371 rte_cryptodev_get_feature_name(uint64_t flag)
 372 {
 373         switch (flag) {
 374         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 375                 return "SYMMETRIC_CRYPTO";
 376         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 377                 return "ASYMMETRIC_CRYPTO";
 378         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 379                 return "SYM_OPERATION_CHAINING";
 380         case RTE_CRYPTODEV_FF_CPU_SSE:
 381                 return "CPU_SSE";
 382         case RTE_CRYPTODEV_FF_CPU_AVX:
 383                 return "CPU_AVX";
 384         case RTE_CRYPTODEV_FF_CPU_AVX2:
 385                 return "CPU_AVX2";
 386         case RTE_CRYPTODEV_FF_CPU_AVX512:
 387                 return "CPU_AVX512";
 388         case RTE_CRYPTODEV_FF_CPU_AESNI:
 389                 return "CPU_AESNI";
 390         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 391                 return "HW_ACCELERATED";
 392         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 393                 return "MBUF_SCATTER_GATHER";
 394         case RTE_CRYPTODEV_FF_CPU_NEON:
 395                 return "CPU_NEON";
 396         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 397                 return "CPU_ARM_CE";
 398         default:
 399                 return NULL;
 400         }
 401 }
 402
 403 struct rte_cryptodev *
 404 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 405 {
 406         return &rte_cryptodev_globals->devs[dev_id];
 407 }
 408
 409 struct rte_cryptodev *
 410 rte_cryptodev_pmd_get_named_dev(const char *name)
 411 {
 412         struct rte_cryptodev *dev;
 413         unsigned int i;
 414
 415         if (name == NULL)
 416                 return NULL;
 417
 418         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 419                 dev = &rte_cryptodev_globals->devs[i];
 420
 421                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 422                                 (strcmp(dev->data->name, name) == 0))
 423                         return dev;
 424         }
 425
 426         return NULL;
 427 }
 428
 429 unsigned int
 430 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 431 {
 432         struct rte_cryptodev *dev = NULL;
 433
 434         if (dev_id >= rte_cryptodev_globals->nb_devs)
 435                 return 0;
 436
 437         dev = rte_cryptodev_pmd_get_dev(dev_id);
 438         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 439                 return 0;
 440         else
 441                 return 1;
 442 }
 443
 444
 445 int
 446 rte_cryptodev_get_dev_id(const char *name)
 447 {
 448         unsigned i;
 449
 450         if (name == NULL)
 451                 return -1;
 452
 453         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 454                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 455                                 == 0) &&
 456                                 (rte_cryptodev_globals->devs[i].attached ==
 457                                                 RTE_CRYPTODEV_ATTACHED))
 458                         return i;
 459
 460         return -1;
 461 }
 462
 463 uint8_t
 464 rte_cryptodev_count(void)
 465 {
 466         return rte_cryptodev_globals->nb_devs;
 467 }
 468
 469 uint8_t
 470 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 471 {
 472         uint8_t i, dev_count = 0;
 473
 474         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 475                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 476                         rte_cryptodev_globals->devs[i].attached ==
 477                                         RTE_CRYPTODEV_ATTACHED)
 478                         dev_count++;
 479
 480         return dev_count;
 481 }
 482
 483 uint8_t
 484 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 485         uint8_t nb_devices)
 486 {
 487         uint8_t i, count = 0;
 488         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 489         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 490
 491         for (i = 0; i < max_devs && count < nb_devices; i++) {
 492
 493                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 494                         int cmp;
 495
 496                         cmp = strncmp(devs[i].device->driver->name,
 497                                         driver_name,
 498                                         strlen(driver_name));
 499
 500                         if (cmp == 0)
 501                                 devices[count++] = devs[i].data->dev_id;
 502                 }
 503         }
 504
 505         return count;
 506 }
 507
 508 void *
 509 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 510 {
 511         if (rte_crypto_devices[dev_id].feature_flags &
 512                         RTE_CRYPTODEV_FF_SECURITY)
 513                 return rte_crypto_devices[dev_id].security_ctx;
 514
 515         return NULL;
 516 }
 517
 518 int
 519 rte_cryptodev_socket_id(uint8_t dev_id)
 520 {
 521         struct rte_cryptodev *dev;
 522
 523         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 524                 return -1;
 525
 526         dev = rte_cryptodev_pmd_get_dev(dev_id);
 527
 528         return dev->data->socket_id;
 529 }
 530
 531 static inline int
 532 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 533                 int socket_id)
 534 {
 535         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 536         const struct rte_memzone *mz;
 537         int n;
 538
 539         /* generate memzone name */
 540         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 541         if (n >= (int)sizeof(mz_name))
 542                 return -EINVAL;
 543
 544         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 545                 mz = rte_memzone_reserve(mz_name,
 546                                 sizeof(struct rte_cryptodev_data),
 547                                 socket_id, 0);
 548         } else
 549                 mz = rte_memzone_lookup(mz_name);
 550
 551         if (mz == NULL)
 552                 return -ENOMEM;
 553
 554         *data = mz->addr;
 555         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 556                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 557
 558         return 0;
 559 }
 560
 561 static uint8_t
 562 rte_cryptodev_find_free_device_index(void)
 563 {
 564         uint8_t dev_id;
 565
 566         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 567                 if (rte_crypto_devices[dev_id].attached ==
 568                                 RTE_CRYPTODEV_DETACHED)
 569                         return dev_id;
 570         }
 571         return RTE_CRYPTO_MAX_DEVS;
 572 }
 573
 574 struct rte_cryptodev *
 575 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 576 {
 577         struct rte_cryptodev *cryptodev;
 578         uint8_t dev_id;
 579
 580         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 581                 CDEV_LOG_ERR("Crypto device with name %s already "
 582                                 "allocated!", name);
 583                 return NULL;
 584         }
 585
 586         dev_id = rte_cryptodev_find_free_device_index();
 587         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 588                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 589                 return NULL;
 590         }
 591
 592         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 593
 594         if (cryptodev->data == NULL) {
 595                 struct rte_cryptodev_data *cryptodev_data =
 596                                 cryptodev_globals.data[dev_id];
 597
 598                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 599                                 socket_id);
 600
 601                 if (retval < 0 || cryptodev_data == NULL)
 602                         return NULL;
 603
 604                 cryptodev->data = cryptodev_data;
 605
 606                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 607                                 "%s", name);
 608
 609                 cryptodev->data->dev_id = dev_id;
 610                 cryptodev->data->socket_id = socket_id;
 611                 cryptodev->data->dev_started = 0;
 612
 613                 /* init user callbacks */
 614                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 615
 616                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 617
 618                 cryptodev_globals.nb_devs++;
 619         }
 620
 621         return cryptodev;
 622 }
 623
 624 int
 625 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 626 {
 627         int ret;
 628
 629         if (cryptodev == NULL)
 630                 return -EINVAL;
 631
 632         /* Close device only if device operations have been set */
 633         if (cryptodev->dev_ops) {
 634                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 635                 if (ret < 0)
 636                         return ret;
 637         }
 638
 639         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 640         cryptodev_globals.nb_devs--;
 641         return 0;
 642 }
 643
 644 uint16_t
 645 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 646 {
 647         struct rte_cryptodev *dev;
 648
 649         dev = &rte_crypto_devices[dev_id];
 650         return dev->data->nb_queue_pairs;
 651 }
 652
 653 static int
 654 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 655                 int socket_id)
 656 {
 657         struct rte_cryptodev_info dev_info;
 658         void **qp;
 659         unsigned i;
 660
 661         if ((dev == NULL) || (nb_qpairs < 1)) {
 662                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 663                                                         dev, nb_qpairs);
 664                 return -EINVAL;
 665         }
 666
 667         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 668                         nb_qpairs, dev->data->dev_id);
 669
 670         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 671
 672         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 673         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 674
 675         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 676                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 677                                 nb_qpairs, dev->data->dev_id);
 678             return -EINVAL;
 679         }
 680
 681         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 682                 dev->data->queue_pairs = rte_zmalloc_socket(
 683                                 "cryptodev->queue_pairs",
 684                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 685                                 RTE_CACHE_LINE_SIZE, socket_id);
 686
 687                 if (dev->data->queue_pairs == NULL) {
 688                         dev->data->nb_queue_pairs = 0;
 689                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 690                                                         "nb_queues %u",
 691                                                         nb_qpairs);
 692                         return -(ENOMEM);
 693                 }
 694         } else { /* re-configure */
 695                 int ret;
 696                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 697
 698                 qp = dev->data->queue_pairs;
 699
 700                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 701                                 -ENOTSUP);
 702
 703                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 704                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 705                         if (ret < 0)
 706                                 return ret;
 707                 }
 708
 709                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 710                                 RTE_CACHE_LINE_SIZE);
 711                 if (qp == NULL) {
 712                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 713                                                 " nb_queues %u", nb_qpairs);
 714                         return -(ENOMEM);
 715                 }
 716
 717                 if (nb_qpairs > old_nb_queues) {
 718                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 719
 720                         memset(qp + old_nb_queues, 0,
 721                                 sizeof(qp[0]) * new_qs);
 722                 }
 723
 724                 dev->data->queue_pairs = qp;
 725
 726         }
 727         dev->data->nb_queue_pairs = nb_qpairs;
 728         return 0;
 729 }
 730
 731 int
 732 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 733 {
 734         struct rte_cryptodev *dev;
 735
 736         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 737                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 738                 return -EINVAL;
 739         }
 740
 741         dev = &rte_crypto_devices[dev_id];
 742         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 743                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 744                 return -EINVAL;
 745         }
 746
 747         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 748
 749         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 750
 751 }
 752
 753 int
 754 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 755 {
 756         struct rte_cryptodev *dev;
 757
 758         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 759                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 760                 return -EINVAL;
 761         }
 762
 763         dev = &rte_crypto_devices[dev_id];
 764         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 765                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 766                 return -EINVAL;
 767         }
 768
 769         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 770
 771         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 772
 773 }
 774
 775 int
 776 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 777 {
 778         struct rte_cryptodev *dev;
 779         int diag;
 780
 781         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 782                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 783                 return -EINVAL;
 784         }
 785
 786         dev = &rte_crypto_devices[dev_id];
 787
 788         if (dev->data->dev_started) {
 789                 CDEV_LOG_ERR(
 790                     "device %d must be stopped to allow configuration", dev_id);
 791                 return -EBUSY;
 792         }
 793
 794         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 795
 796         /* Setup new number of queue pairs and reconfigure device. */
 797         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 798                         config->socket_id);
 799         if (diag != 0) {
 800                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 801                                 dev_id, diag);
 802                 return diag;
 803         }
 804
 805         return (*dev->dev_ops->dev_configure)(dev, config);
 806 }
 807
 808
 809 int
 810 rte_cryptodev_start(uint8_t dev_id)
 811 {
 812         struct rte_cryptodev *dev;
 813         int diag;
 814
 815         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 816
 817         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 818                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 819                 return -EINVAL;
 820         }
 821
 822         dev = &rte_crypto_devices[dev_id];
 823
 824         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 825
 826         if (dev->data->dev_started != 0) {
 827                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 828                         dev_id);
 829                 return 0;
 830         }
 831
 832         diag = (*dev->dev_ops->dev_start)(dev);
 833         if (diag == 0)
 834                 dev->data->dev_started = 1;
 835         else
 836                 return diag;
 837
 838         return 0;
 839 }
 840
 841 void
 842 rte_cryptodev_stop(uint8_t dev_id)
 843 {
 844         struct rte_cryptodev *dev;
 845
 846         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 847                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 848                 return;
 849         }
 850
 851         dev = &rte_crypto_devices[dev_id];
 852
 853         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 854
 855         if (dev->data->dev_started == 0) {
 856                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 857                         dev_id);
 858                 return;
 859         }
 860
 861         (*dev->dev_ops->dev_stop)(dev);
 862         dev->data->dev_started = 0;
 863 }
 864
 865 int
 866 rte_cryptodev_close(uint8_t dev_id)
 867 {
 868         struct rte_cryptodev *dev;
 869         int retval;
 870
 871         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 872                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 873                 return -1;
 874         }
 875
 876         dev = &rte_crypto_devices[dev_id];
 877
 878         /* Device must be stopped before it can be closed */
 879         if (dev->data->dev_started == 1) {
 880                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 881                                 dev_id);
 882                 return -EBUSY;
 883         }
 884
 885         /* We can't close the device if there are outstanding sessions in use */
 886         if (dev->data->session_pool != NULL) {
 887                 if (!rte_mempool_full(dev->data->session_pool)) {
 888                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 889                                         "has sessions still in use, free "
 890                                         "all sessions before calling close",
 891                                         (unsigned)dev_id);
 892                         return -EBUSY;
 893                 }
 894         }
 895
 896         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 897         retval = (*dev->dev_ops->dev_close)(dev);
 898
 899         if (retval < 0)
 900                 return retval;
 901
 902         return 0;
 903 }
 904
 905 int
 906 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 907                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
 908                 struct rte_mempool *session_pool)
 909
 910 {
 911         struct rte_cryptodev *dev;
 912
 913         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 914                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 915                 return -EINVAL;
 916         }
 917
 918         dev = &rte_crypto_devices[dev_id];
 919         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 920                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 921                 return -EINVAL;
 922         }
 923
 924         if (dev->data->dev_started) {
 925                 CDEV_LOG_ERR(
 926                     "device %d must be stopped to allow configuration", dev_id);
 927                 return -EBUSY;
 928         }
 929
 930         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 931
 932         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 933                         socket_id, session_pool);
 934 }
 935
 936
 937 int
 938 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 939 {
 940         struct rte_cryptodev *dev;
 941
 942         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 943                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 944                 return -ENODEV;
 945         }
 946
 947         if (stats == NULL) {
 948                 CDEV_LOG_ERR("Invalid stats ptr");
 949                 return -EINVAL;
 950         }
 951
 952         dev = &rte_crypto_devices[dev_id];
 953         memset(stats, 0, sizeof(*stats));
 954
 955         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 956         (*dev->dev_ops->stats_get)(dev, stats);
 957         return 0;
 958 }
 959
 960 void
 961 rte_cryptodev_stats_reset(uint8_t dev_id)
 962 {
 963         struct rte_cryptodev *dev;
 964
 965         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 966                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 967                 return;
 968         }
 969
 970         dev = &rte_crypto_devices[dev_id];
 971
 972         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 973         (*dev->dev_ops->stats_reset)(dev);
 974 }
 975
 976
 977 void
 978 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 979 {
 980         struct rte_cryptodev *dev;
 981
 982         if (dev_id >= cryptodev_globals.nb_devs) {
 983                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 984                 return;
 985         }
 986
 987         dev = &rte_crypto_devices[dev_id];
 988
 989         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 990
 991         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 992         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 993
 994         dev_info->driver_name = dev->device->driver->name;
 995 }
 996
 997
 998 int
 999 rte_cryptodev_callback_register(uint8_t dev_id,
1000                         enum rte_cryptodev_event_type event,
1001                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1002 {
1003         struct rte_cryptodev *dev;
1004         struct rte_cryptodev_callback *user_cb;
1005
1006         if (!cb_fn)
1007                 return -EINVAL;
1008
1009         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1010                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1011                 return -EINVAL;
1012         }
1013
1014         dev = &rte_crypto_devices[dev_id];
1015         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1016
1017         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1018                 if (user_cb->cb_fn == cb_fn &&
1019                         user_cb->cb_arg == cb_arg &&
1020                         user_cb->event == event) {
1021                         break;
1022                 }
1023         }
1024
1025         /* create a new callback. */
1026         if (user_cb == NULL) {
1027                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1028                                 sizeof(struct rte_cryptodev_callback), 0);
1029                 if (user_cb != NULL) {
1030                         user_cb->cb_fn = cb_fn;
1031                         user_cb->cb_arg = cb_arg;
1032                         user_cb->event = event;
1033                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1034                 }
1035         }
1036
1037         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1038         return (user_cb == NULL) ? -ENOMEM : 0;
1039 }
1040
1041 int
1042 rte_cryptodev_callback_unregister(uint8_t dev_id,
1043                         enum rte_cryptodev_event_type event,
1044                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1045 {
1046         int ret;
1047         struct rte_cryptodev *dev;
1048         struct rte_cryptodev_callback *cb, *next;
1049
1050         if (!cb_fn)
1051                 return -EINVAL;
1052
1053         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1054                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1055                 return -EINVAL;
1056         }
1057
1058         dev = &rte_crypto_devices[dev_id];
1059         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1060
1061         ret = 0;
1062         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1063
1064                 next = TAILQ_NEXT(cb, next);
1065
1066                 if (cb->cb_fn != cb_fn || cb->event != event ||
1067                                 (cb->cb_arg != (void *)-1 &&
1068                                 cb->cb_arg != cb_arg))
1069                         continue;
1070
1071                 /*
1072                  * if this callback is not executing right now,
1073                  * then remove it.
1074                  */
1075                 if (cb->active == 0) {
1076                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1077                         rte_free(cb);
1078                 } else {
1079                         ret = -EAGAIN;
1080                 }
1081         }
1082
1083         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1084         return ret;
1085 }
1086
1087 void
1088 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1089         enum rte_cryptodev_event_type event)
1090 {
1091         struct rte_cryptodev_callback *cb_lst;
1092         struct rte_cryptodev_callback dev_cb;
1093
1094         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1095         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1096                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1097                         continue;
1098                 dev_cb = *cb_lst;
1099                 cb_lst->active = 1;
1100                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1101                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1102                                                 dev_cb.cb_arg);
1103                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1104                 cb_lst->active = 0;
1105         }
1106         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1107 }
1108
1109
1110 int
1111 rte_cryptodev_sym_session_init(uint8_t dev_id,
1112                 struct rte_cryptodev_sym_session *sess,
1113                 struct rte_crypto_sym_xform *xforms,
1114                 struct rte_mempool *mp)
1115 {
1116         struct rte_cryptodev *dev;
1117         uint8_t index;
1118         int ret;
1119
1120         dev = rte_cryptodev_pmd_get_dev(dev_id);
1121
1122         if (sess == NULL || xforms == NULL || dev == NULL)
1123                 return -EINVAL;
1124
1125         index = dev->driver_id;
1126
1127         if (sess->sess_private_data[index] == NULL) {
1128                 ret = dev->dev_ops->session_configure(dev, xforms, sess, mp);
1129                 if (ret < 0) {
1130                         CDEV_LOG_ERR(
1131                                 "dev_id %d failed to configure session details",
1132                                 dev_id);
1133                         return ret;
1134                 }
1135         }
1136
1137         return 0;
1138 }
1139
1140 struct rte_cryptodev_sym_session *
1141 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1142 {
1143         struct rte_cryptodev_sym_session *sess;
1144
1145         /* Allocate a session structure from the session pool */
1146         if (rte_mempool_get(mp, (void **)&sess)) {
1147                 CDEV_LOG_ERR("couldn't get object from session mempool");
1148                 return NULL;
1149         }
1150
1151         /* Clear device session pointer */
1152         memset(sess, 0, (sizeof(void *) * nb_drivers));
1153
1154         return sess;
1155 }
1156
1157 int
1158 rte_cryptodev_queue_pair_attach_sym_session(uint8_t dev_id, uint16_t qp_id,
1159                 struct rte_cryptodev_sym_session *sess)
1160 {
1161         struct rte_cryptodev *dev;
1162
1163         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1164                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1165                 return -EINVAL;
1166         }
1167
1168         dev = &rte_crypto_devices[dev_id];
1169
1170         /* The API is optional, not returning error if driver do not suuport */
1171         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1172
1173         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1174
1175         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess_priv)) {
1176                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1177                                 dev_id, qp_id);
1178                 return -EPERM;
1179         }
1180
1181         return 0;
1182 }
1183
1184 int
1185 rte_cryptodev_queue_pair_detach_sym_session(uint8_t dev_id, uint16_t qp_id,
1186                 struct rte_cryptodev_sym_session *sess)
1187 {
1188         struct rte_cryptodev *dev;
1189
1190         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1191                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1192                 return -EINVAL;
1193         }
1194
1195         dev = &rte_crypto_devices[dev_id];
1196
1197         /* The API is optional, not returning error if driver do not suuport */
1198         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1199
1200         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1201
1202         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess_priv)) {
1203                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1204                                 dev_id, qp_id);
1205                 return -EPERM;
1206         }
1207
1208         return 0;
1209 }
1210
1211 int
1212 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1213                 struct rte_cryptodev_sym_session *sess)
1214 {
1215         struct rte_cryptodev *dev;
1216
1217         dev = rte_cryptodev_pmd_get_dev(dev_id);
1218
1219         if (dev == NULL || sess == NULL)
1220                 return -EINVAL;
1221
1222         dev->dev_ops->session_clear(dev, sess);
1223
1224         return 0;
1225 }
1226
1227 int
1228 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1229 {
1230         uint8_t i;
1231         void *sess_priv;
1232         struct rte_mempool *sess_mp;
1233
1234         if (sess == NULL)
1235                 return -EINVAL;
1236
1237         /* Check that all device private data has been freed */
1238         for (i = 0; i < nb_drivers; i++) {
1239                 sess_priv = get_session_private_data(sess, i);
1240                 if (sess_priv != NULL)
1241                         return -EBUSY;
1242         }
1243
1244         /* Return session to mempool */
1245         sess_mp = rte_mempool_from_obj(sess);
1246         rte_mempool_put(sess_mp, sess);
1247
1248         return 0;
1249 }
1250
1251 unsigned int
1252 rte_cryptodev_get_header_session_size(void)
1253 {
1254         /*
1255          * Header contains pointers to the private data
1256          * of all registered drivers
1257          */
1258         return (sizeof(void *) * nb_drivers);
1259 }
1260
1261 unsigned int
1262 rte_cryptodev_get_private_session_size(uint8_t dev_id)
1263 {
1264         struct rte_cryptodev *dev;
1265         unsigned int header_size = sizeof(void *) * nb_drivers;
1266         unsigned int priv_sess_size;
1267
1268         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1269                 return 0;
1270
1271         dev = rte_cryptodev_pmd_get_dev(dev_id);
1272
1273         if (*dev->dev_ops->session_get_size == NULL)
1274                 return 0;
1275
1276         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1277
1278         /*
1279          * If size is less than session header size,
1280          * return the latter, as this guarantees that
1281          * sessionless operations will work
1282          */
1283         if (priv_sess_size < header_size)
1284                 return header_size;
1285
1286         return priv_sess_size;
1287
1288 }
1289
1290 /** Initialise rte_crypto_op mempool element */
1291 static void
1292 rte_crypto_op_init(struct rte_mempool *mempool,
1293                 void *opaque_arg,
1294                 void *_op_data,
1295                 __rte_unused unsigned i)
1296 {
1297         struct rte_crypto_op *op = _op_data;
1298         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1299
1300         memset(_op_data, 0, mempool->elt_size);
1301
1302         __rte_crypto_op_reset(op, type);
1303
1304         op->phys_addr = rte_mem_virt2iova(_op_data);
1305         op->mempool = mempool;
1306 }
1307
1308
1309 struct rte_mempool *
1310 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1311                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1312                 int socket_id)
1313 {
1314         struct rte_crypto_op_pool_private *priv;
1315
1316         unsigned elt_size = sizeof(struct rte_crypto_op) +
1317                         sizeof(struct rte_crypto_sym_op) +
1318                         priv_size;
1319
1320         /* lookup mempool in case already allocated */
1321         struct rte_mempool *mp = rte_mempool_lookup(name);
1322
1323         if (mp != NULL) {
1324                 priv = (struct rte_crypto_op_pool_private *)
1325                                 rte_mempool_get_priv(mp);
1326
1327                 if (mp->elt_size != elt_size ||
1328                                 mp->cache_size < cache_size ||
1329                                 mp->size < nb_elts ||
1330                                 priv->priv_size <  priv_size) {
1331                         mp = NULL;
1332                         CDEV_LOG_ERR("Mempool %s already exists but with "
1333                                         "incompatible parameters", name);
1334                         return NULL;
1335                 }
1336                 return mp;
1337         }
1338
1339         mp = rte_mempool_create(
1340                         name,
1341                         nb_elts,
1342                         elt_size,
1343                         cache_size,
1344                         sizeof(struct rte_crypto_op_pool_private),
1345                         NULL,
1346                         NULL,
1347                         rte_crypto_op_init,
1348                         &type,
1349                         socket_id,
1350                         0);
1351
1352         if (mp == NULL) {
1353                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1354                 return NULL;
1355         }
1356
1357         priv = (struct rte_crypto_op_pool_private *)
1358                         rte_mempool_get_priv(mp);
1359
1360         priv->priv_size = priv_size;
1361         priv->type = type;
1362
1363         return mp;
1364 }
1365
1366 int
1367 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1368 {
1369         struct rte_cryptodev *dev = NULL;
1370         uint32_t i = 0;
1371
1372         if (name == NULL)
1373                 return -EINVAL;
1374
1375         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1376                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1377                                 "%s_%u", dev_name_prefix, i);
1378
1379                 if (ret < 0)
1380                         return ret;
1381
1382                 dev = rte_cryptodev_pmd_get_named_dev(name);
1383                 if (!dev)
1384                         return 0;
1385         }
1386
1387         return -1;
1388 }
1389
1390 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1391
1392 static struct cryptodev_driver_list cryptodev_driver_list =
1393         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1394
1395 int
1396 rte_cryptodev_driver_id_get(const char *name)
1397 {
1398         struct cryptodev_driver *driver;
1399         const char *driver_name;
1400
1401         if (name == NULL) {
1402                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1403                 return -1;
1404         }
1405
1406         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1407                 driver_name = driver->driver->name;
1408                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1409                         return driver->id;
1410         }
1411         return -1;
1412 }
1413
1414 const char *
1415 rte_cryptodev_name_get(uint8_t dev_id)
1416 {
1417         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1418
1419         if (dev == NULL)
1420                 return NULL;
1421
1422         return dev->data->name;
1423 }
1424
1425 const char *
1426 rte_cryptodev_driver_name_get(uint8_t driver_id)
1427 {
1428         struct cryptodev_driver *driver;
1429
1430         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1431                 if (driver->id == driver_id)
1432                         return driver->driver->name;
1433         return NULL;
1434 }
1435
1436 uint8_t
1437 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1438                 const struct rte_driver *drv)
1439 {
1440         crypto_drv->driver = drv;
1441         crypto_drv->id = nb_drivers;
1442
1443         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1444
1445         return nb_drivers++;
1446 }