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_AESNI:
 366                 return "CPU_AESNI";
 367         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 368                 return "HW_ACCELERATED";
 369         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 370                 return "MBUF_SCATTER_GATHER";
 371         case RTE_CRYPTODEV_FF_CPU_NEON:
 372                 return "CPU_NEON";
 373         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 374                 return "CPU_ARM_CE";
 375         default:
 376                 return NULL;
 377         }
 378 }
 379
 380 int
 381 rte_cryptodev_create_vdev(const char *name, const char *args)
 382 {
 383         return rte_vdev_init(name, args);
 384 }
 385
 386 struct rte_cryptodev *
 387 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 388 {
 389         return &rte_cryptodev_globals->devs[dev_id];
 390 }
 391
 392 struct rte_cryptodev *
 393 rte_cryptodev_pmd_get_named_dev(const char *name)
 394 {
 395         struct rte_cryptodev *dev;
 396         unsigned int i;
 397
 398         if (name == NULL)
 399                 return NULL;
 400
 401         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 402                 dev = &rte_cryptodev_globals->devs[i];
 403
 404                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 405                                 (strcmp(dev->data->name, name) == 0))
 406                         return dev;
 407         }
 408
 409         return NULL;
 410 }
 411
 412 unsigned int
 413 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 414 {
 415         struct rte_cryptodev *dev = NULL;
 416
 417         if (dev_id >= rte_cryptodev_globals->nb_devs)
 418                 return 0;
 419
 420         dev = rte_cryptodev_pmd_get_dev(dev_id);
 421         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 422                 return 0;
 423         else
 424                 return 1;
 425 }
 426
 427
 428 int
 429 rte_cryptodev_get_dev_id(const char *name)
 430 {
 431         unsigned i;
 432
 433         if (name == NULL)
 434                 return -1;
 435
 436         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 437                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 438                                 == 0) &&
 439                                 (rte_cryptodev_globals->devs[i].attached ==
 440                                                 RTE_CRYPTODEV_ATTACHED))
 441                         return i;
 442
 443         return -1;
 444 }
 445
 446 uint8_t
 447 rte_cryptodev_count(void)
 448 {
 449         return rte_cryptodev_globals->nb_devs;
 450 }
 451
 452 uint8_t
 453 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 454 {
 455         uint8_t i, dev_count = 0;
 456
 457         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 458                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 459                         rte_cryptodev_globals->devs[i].attached ==
 460                                         RTE_CRYPTODEV_ATTACHED)
 461                         dev_count++;
 462
 463         return dev_count;
 464 }
 465
 466 uint8_t
 467 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 468         uint8_t nb_devices)
 469 {
 470         uint8_t i, count = 0;
 471         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 472         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 473
 474         for (i = 0; i < max_devs && count < nb_devices; i++) {
 475
 476                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 477                         int cmp;
 478
 479                         cmp = strncmp(devs[i].device->driver->name,
 480                                         driver_name,
 481                                         strlen(driver_name));
 482
 483                         if (cmp == 0)
 484                                 devices[count++] = devs[i].data->dev_id;
 485                 }
 486         }
 487
 488         return count;
 489 }
 490
 491 int
 492 rte_cryptodev_socket_id(uint8_t dev_id)
 493 {
 494         struct rte_cryptodev *dev;
 495
 496         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 497                 return -1;
 498
 499         dev = rte_cryptodev_pmd_get_dev(dev_id);
 500
 501         return dev->data->socket_id;
 502 }
 503
 504 static inline int
 505 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 506                 int socket_id)
 507 {
 508         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 509         const struct rte_memzone *mz;
 510         int n;
 511
 512         /* generate memzone name */
 513         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 514         if (n >= (int)sizeof(mz_name))
 515                 return -EINVAL;
 516
 517         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 518                 mz = rte_memzone_reserve(mz_name,
 519                                 sizeof(struct rte_cryptodev_data),
 520                                 socket_id, 0);
 521         } else
 522                 mz = rte_memzone_lookup(mz_name);
 523
 524         if (mz == NULL)
 525                 return -ENOMEM;
 526
 527         *data = mz->addr;
 528         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 529                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 530
 531         return 0;
 532 }
 533
 534 static uint8_t
 535 rte_cryptodev_find_free_device_index(void)
 536 {
 537         uint8_t dev_id;
 538
 539         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 540                 if (rte_crypto_devices[dev_id].attached ==
 541                                 RTE_CRYPTODEV_DETACHED)
 542                         return dev_id;
 543         }
 544         return RTE_CRYPTO_MAX_DEVS;
 545 }
 546
 547 struct rte_cryptodev *
 548 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 549 {
 550         struct rte_cryptodev *cryptodev;
 551         uint8_t dev_id;
 552
 553         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 554                 CDEV_LOG_ERR("Crypto device with name %s already "
 555                                 "allocated!", name);
 556                 return NULL;
 557         }
 558
 559         dev_id = rte_cryptodev_find_free_device_index();
 560         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 561                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 562                 return NULL;
 563         }
 564
 565         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 566
 567         if (cryptodev->data == NULL) {
 568                 struct rte_cryptodev_data *cryptodev_data =
 569                                 cryptodev_globals.data[dev_id];
 570
 571                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 572                                 socket_id);
 573
 574                 if (retval < 0 || cryptodev_data == NULL)
 575                         return NULL;
 576
 577                 cryptodev->data = cryptodev_data;
 578
 579                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 580                                 "%s", name);
 581
 582                 cryptodev->data->dev_id = dev_id;
 583                 cryptodev->data->socket_id = socket_id;
 584                 cryptodev->data->dev_started = 0;
 585
 586                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 587
 588                 cryptodev_globals.nb_devs++;
 589         }
 590
 591         return cryptodev;
 592 }
 593
 594 int
 595 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 596 {
 597         int ret;
 598
 599         if (cryptodev == NULL)
 600                 return -EINVAL;
 601
 602         /* Close device only if device operations have been set */
 603         if (cryptodev->dev_ops) {
 604                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 605                 if (ret < 0)
 606                         return ret;
 607         }
 608
 609         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 610         cryptodev_globals.nb_devs--;
 611         return 0;
 612 }
 613
 614 uint16_t
 615 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 616 {
 617         struct rte_cryptodev *dev;
 618
 619         dev = &rte_crypto_devices[dev_id];
 620         return dev->data->nb_queue_pairs;
 621 }
 622
 623 static int
 624 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 625                 int socket_id)
 626 {
 627         struct rte_cryptodev_info dev_info;
 628         void **qp;
 629         unsigned i;
 630
 631         if ((dev == NULL) || (nb_qpairs < 1)) {
 632                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 633                                                         dev, nb_qpairs);
 634                 return -EINVAL;
 635         }
 636
 637         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 638                         nb_qpairs, dev->data->dev_id);
 639
 640         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 641
 642         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 643         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 644
 645         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 646                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 647                                 nb_qpairs, dev->data->dev_id);
 648             return -EINVAL;
 649         }
 650
 651         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 652                 dev->data->queue_pairs = rte_zmalloc_socket(
 653                                 "cryptodev->queue_pairs",
 654                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 655                                 RTE_CACHE_LINE_SIZE, socket_id);
 656
 657                 if (dev->data->queue_pairs == NULL) {
 658                         dev->data->nb_queue_pairs = 0;
 659                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 660                                                         "nb_queues %u",
 661                                                         nb_qpairs);
 662                         return -(ENOMEM);
 663                 }
 664         } else { /* re-configure */
 665                 int ret;
 666                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 667
 668                 qp = dev->data->queue_pairs;
 669
 670                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 671                                 -ENOTSUP);
 672
 673                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 674                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 675                         if (ret < 0)
 676                                 return ret;
 677                 }
 678
 679                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 680                                 RTE_CACHE_LINE_SIZE);
 681                 if (qp == NULL) {
 682                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 683                                                 " nb_queues %u", nb_qpairs);
 684                         return -(ENOMEM);
 685                 }
 686
 687                 if (nb_qpairs > old_nb_queues) {
 688                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 689
 690                         memset(qp + old_nb_queues, 0,
 691                                 sizeof(qp[0]) * new_qs);
 692                 }
 693
 694                 dev->data->queue_pairs = qp;
 695
 696         }
 697         dev->data->nb_queue_pairs = nb_qpairs;
 698         return 0;
 699 }
 700
 701 int
 702 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 703 {
 704         struct rte_cryptodev *dev;
 705
 706         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 707                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 708                 return -EINVAL;
 709         }
 710
 711         dev = &rte_crypto_devices[dev_id];
 712         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 713                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 714                 return -EINVAL;
 715         }
 716
 717         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 718
 719         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 720
 721 }
 722
 723 int
 724 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 725 {
 726         struct rte_cryptodev *dev;
 727
 728         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 729                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 730                 return -EINVAL;
 731         }
 732
 733         dev = &rte_crypto_devices[dev_id];
 734         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 735                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 736                 return -EINVAL;
 737         }
 738
 739         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 740
 741         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 742
 743 }
 744
 745 int
 746 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 747 {
 748         struct rte_cryptodev *dev;
 749         int diag;
 750
 751         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 752                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 753                 return -EINVAL;
 754         }
 755
 756         dev = &rte_crypto_devices[dev_id];
 757
 758         if (dev->data->dev_started) {
 759                 CDEV_LOG_ERR(
 760                     "device %d must be stopped to allow configuration", dev_id);
 761                 return -EBUSY;
 762         }
 763
 764         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 765
 766         /* Setup new number of queue pairs and reconfigure device. */
 767         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 768                         config->socket_id);
 769         if (diag != 0) {
 770                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 771                                 dev_id, diag);
 772                 return diag;
 773         }
 774
 775         return (*dev->dev_ops->dev_configure)(dev, config);
 776 }
 777
 778
 779 int
 780 rte_cryptodev_start(uint8_t dev_id)
 781 {
 782         struct rte_cryptodev *dev;
 783         int diag;
 784
 785         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 786
 787         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 788                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 789                 return -EINVAL;
 790         }
 791
 792         dev = &rte_crypto_devices[dev_id];
 793
 794         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 795
 796         if (dev->data->dev_started != 0) {
 797                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 798                         dev_id);
 799                 return 0;
 800         }
 801
 802         diag = (*dev->dev_ops->dev_start)(dev);
 803         if (diag == 0)
 804                 dev->data->dev_started = 1;
 805         else
 806                 return diag;
 807
 808         return 0;
 809 }
 810
 811 void
 812 rte_cryptodev_stop(uint8_t dev_id)
 813 {
 814         struct rte_cryptodev *dev;
 815
 816         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 817                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 818                 return;
 819         }
 820
 821         dev = &rte_crypto_devices[dev_id];
 822
 823         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 824
 825         if (dev->data->dev_started == 0) {
 826                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 827                         dev_id);
 828                 return;
 829         }
 830
 831         (*dev->dev_ops->dev_stop)(dev);
 832         dev->data->dev_started = 0;
 833 }
 834
 835 int
 836 rte_cryptodev_close(uint8_t dev_id)
 837 {
 838         struct rte_cryptodev *dev;
 839         int retval;
 840
 841         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 842                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 843                 return -1;
 844         }
 845
 846         dev = &rte_crypto_devices[dev_id];
 847
 848         /* Device must be stopped before it can be closed */
 849         if (dev->data->dev_started == 1) {
 850                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 851                                 dev_id);
 852                 return -EBUSY;
 853         }
 854
 855         /* We can't close the device if there are outstanding sessions in use */
 856         if (dev->data->session_pool != NULL) {
 857                 if (!rte_mempool_full(dev->data->session_pool)) {
 858                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 859                                         "has sessions still in use, free "
 860                                         "all sessions before calling close",
 861                                         (unsigned)dev_id);
 862                         return -EBUSY;
 863                 }
 864         }
 865
 866         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 867         retval = (*dev->dev_ops->dev_close)(dev);
 868
 869         if (retval < 0)
 870                 return retval;
 871
 872         return 0;
 873 }
 874
 875 int
 876 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 877                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
 878                 struct rte_mempool *session_pool)
 879
 880 {
 881         struct rte_cryptodev *dev;
 882
 883         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 884                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 885                 return -EINVAL;
 886         }
 887
 888         dev = &rte_crypto_devices[dev_id];
 889         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 890                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 891                 return -EINVAL;
 892         }
 893
 894         if (dev->data->dev_started) {
 895                 CDEV_LOG_ERR(
 896                     "device %d must be stopped to allow configuration", dev_id);
 897                 return -EBUSY;
 898         }
 899
 900         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 901
 902         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 903                         socket_id, session_pool);
 904 }
 905
 906
 907 int
 908 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 909 {
 910         struct rte_cryptodev *dev;
 911
 912         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 913                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 914                 return -ENODEV;
 915         }
 916
 917         if (stats == NULL) {
 918                 CDEV_LOG_ERR("Invalid stats ptr");
 919                 return -EINVAL;
 920         }
 921
 922         dev = &rte_crypto_devices[dev_id];
 923         memset(stats, 0, sizeof(*stats));
 924
 925         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 926         (*dev->dev_ops->stats_get)(dev, stats);
 927         return 0;
 928 }
 929
 930 void
 931 rte_cryptodev_stats_reset(uint8_t dev_id)
 932 {
 933         struct rte_cryptodev *dev;
 934
 935         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 936                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 937                 return;
 938         }
 939
 940         dev = &rte_crypto_devices[dev_id];
 941
 942         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 943         (*dev->dev_ops->stats_reset)(dev);
 944 }
 945
 946
 947 void
 948 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 949 {
 950         struct rte_cryptodev *dev;
 951
 952         if (dev_id >= cryptodev_globals.nb_devs) {
 953                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 954                 return;
 955         }
 956
 957         dev = &rte_crypto_devices[dev_id];
 958
 959         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 960
 961         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 962         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 963
 964         dev_info->driver_name = dev->device->driver->name;
 965 }
 966
 967
 968 int
 969 rte_cryptodev_callback_register(uint8_t dev_id,
 970                         enum rte_cryptodev_event_type event,
 971                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 972 {
 973         struct rte_cryptodev *dev;
 974         struct rte_cryptodev_callback *user_cb;
 975
 976         if (!cb_fn)
 977                 return -EINVAL;
 978
 979         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 980                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 981                 return -EINVAL;
 982         }
 983
 984         dev = &rte_crypto_devices[dev_id];
 985         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 986
 987         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 988                 if (user_cb->cb_fn == cb_fn &&
 989                         user_cb->cb_arg == cb_arg &&
 990                         user_cb->event == event) {
 991                         break;
 992                 }
 993         }
 994
 995         /* create a new callback. */
 996         if (user_cb == NULL) {
 997                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 998                                 sizeof(struct rte_cryptodev_callback), 0);
 999                 if (user_cb != NULL) {
1000                         user_cb->cb_fn = cb_fn;
1001                         user_cb->cb_arg = cb_arg;
1002                         user_cb->event = event;
1003                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1004                 }
1005         }
1006
1007         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1008         return (user_cb == NULL) ? -ENOMEM : 0;
1009 }
1010
1011 int
1012 rte_cryptodev_callback_unregister(uint8_t dev_id,
1013                         enum rte_cryptodev_event_type event,
1014                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1015 {
1016         int ret;
1017         struct rte_cryptodev *dev;
1018         struct rte_cryptodev_callback *cb, *next;
1019
1020         if (!cb_fn)
1021                 return -EINVAL;
1022
1023         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1024                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1025                 return -EINVAL;
1026         }
1027
1028         dev = &rte_crypto_devices[dev_id];
1029         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1030
1031         ret = 0;
1032         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1033
1034                 next = TAILQ_NEXT(cb, next);
1035
1036                 if (cb->cb_fn != cb_fn || cb->event != event ||
1037                                 (cb->cb_arg != (void *)-1 &&
1038                                 cb->cb_arg != cb_arg))
1039                         continue;
1040
1041                 /*
1042                  * if this callback is not executing right now,
1043                  * then remove it.
1044                  */
1045                 if (cb->active == 0) {
1046                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1047                         rte_free(cb);
1048                 } else {
1049                         ret = -EAGAIN;
1050                 }
1051         }
1052
1053         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1054         return ret;
1055 }
1056
1057 void
1058 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1059         enum rte_cryptodev_event_type event)
1060 {
1061         struct rte_cryptodev_callback *cb_lst;
1062         struct rte_cryptodev_callback dev_cb;
1063
1064         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1065         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1066                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1067                         continue;
1068                 dev_cb = *cb_lst;
1069                 cb_lst->active = 1;
1070                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1071                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1072                                                 dev_cb.cb_arg);
1073                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1074                 cb_lst->active = 0;
1075         }
1076         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1077 }
1078
1079
1080 int
1081 rte_cryptodev_sym_session_init(uint8_t dev_id,
1082                 struct rte_cryptodev_sym_session *sess,
1083                 struct rte_crypto_sym_xform *xforms,
1084                 struct rte_mempool *mp)
1085 {
1086         struct rte_cryptodev *dev;
1087         uint8_t index;
1088         int ret;
1089
1090         dev = rte_cryptodev_pmd_get_dev(dev_id);
1091
1092         if (sess == NULL || xforms == NULL || dev == NULL)
1093                 return -EINVAL;
1094
1095         index = dev->driver_id;
1096
1097         if (sess->sess_private_data[index] == NULL) {
1098                 ret = dev->dev_ops->session_configure(dev, xforms, sess, mp);
1099                 if (ret < 0) {
1100                         CDEV_LOG_ERR(
1101                                 "dev_id %d failed to configure session details",
1102                                 dev_id);
1103                         return ret;
1104                 }
1105         }
1106
1107         return 0;
1108 }
1109
1110 struct rte_cryptodev_sym_session *
1111 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1112 {
1113         struct rte_cryptodev_sym_session *sess;
1114
1115         /* Allocate a session structure from the session pool */
1116         if (rte_mempool_get(mp, (void *)&sess)) {
1117                 CDEV_LOG_ERR("couldn't get object from session mempool");
1118                 return NULL;
1119         }
1120
1121         /* Clear device session pointer */
1122         memset(sess, 0, (sizeof(void *) * nb_drivers));
1123
1124         return sess;
1125 }
1126
1127 int
1128 rte_cryptodev_queue_pair_attach_sym_session(uint8_t dev_id, uint16_t qp_id,
1129                 struct rte_cryptodev_sym_session *sess)
1130 {
1131         struct rte_cryptodev *dev;
1132
1133         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1134                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1135                 return -EINVAL;
1136         }
1137
1138         dev = &rte_crypto_devices[dev_id];
1139
1140         /* The API is optional, not returning error if driver do not suuport */
1141         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1142
1143         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1144
1145         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess_priv)) {
1146                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1147                                 dev_id, qp_id);
1148                 return -EPERM;
1149         }
1150
1151         return 0;
1152 }
1153
1154 int
1155 rte_cryptodev_queue_pair_detach_sym_session(uint8_t dev_id, uint16_t qp_id,
1156                 struct rte_cryptodev_sym_session *sess)
1157 {
1158         struct rte_cryptodev *dev;
1159
1160         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1161                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1162                 return -EINVAL;
1163         }
1164
1165         dev = &rte_crypto_devices[dev_id];
1166
1167         /* The API is optional, not returning error if driver do not suuport */
1168         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1169
1170         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1171
1172         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess_priv)) {
1173                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1174                                 dev_id, qp_id);
1175                 return -EPERM;
1176         }
1177
1178         return 0;
1179 }
1180
1181 int
1182 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1183                 struct rte_cryptodev_sym_session *sess)
1184 {
1185         struct rte_cryptodev *dev;
1186
1187         dev = rte_cryptodev_pmd_get_dev(dev_id);
1188
1189         if (dev == NULL || sess == NULL)
1190                 return -EINVAL;
1191
1192         dev->dev_ops->session_clear(dev, sess);
1193
1194         return 0;
1195 }
1196
1197 int
1198 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1199 {
1200         uint8_t i;
1201         void *sess_priv;
1202         struct rte_mempool *sess_mp;
1203
1204         if (sess == NULL)
1205                 return -EINVAL;
1206
1207         /* Check that all device private data has been freed */
1208         for (i = 0; i < nb_drivers; i++) {
1209                 sess_priv = get_session_private_data(sess, i);
1210                 if (sess_priv != NULL)
1211                         return -EBUSY;
1212         }
1213
1214         /* Return session to mempool */
1215         sess_mp = rte_mempool_from_obj(sess);
1216         rte_mempool_put(sess_mp, sess);
1217
1218         return 0;
1219 }
1220
1221 unsigned int
1222 rte_cryptodev_get_header_session_size(void)
1223 {
1224         /*
1225          * Header contains pointers to the private data
1226          * of all registered drivers
1227          */
1228         return (sizeof(void *) * nb_drivers);
1229 }
1230
1231 unsigned int
1232 rte_cryptodev_get_private_session_size(uint8_t dev_id)
1233 {
1234         struct rte_cryptodev *dev;
1235         unsigned int header_size = sizeof(void *) * nb_drivers;
1236         unsigned int priv_sess_size;
1237
1238         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1239                 return 0;
1240
1241         dev = rte_cryptodev_pmd_get_dev(dev_id);
1242
1243         if (*dev->dev_ops->session_get_size == NULL)
1244                 return 0;
1245
1246         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1247
1248         /*
1249          * If size is less than session header size,
1250          * return the latter, as this guarantees that
1251          * sessionless operations will work
1252          */
1253         if (priv_sess_size < header_size)
1254                 return header_size;
1255
1256         return priv_sess_size;
1257
1258 }
1259
1260 /** Initialise rte_crypto_op mempool element */
1261 static void
1262 rte_crypto_op_init(struct rte_mempool *mempool,
1263                 void *opaque_arg,
1264                 void *_op_data,
1265                 __rte_unused unsigned i)
1266 {
1267         struct rte_crypto_op *op = _op_data;
1268         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1269
1270         memset(_op_data, 0, mempool->elt_size);
1271
1272         __rte_crypto_op_reset(op, type);
1273
1274         op->phys_addr = rte_mem_virt2phy(_op_data);
1275         op->mempool = mempool;
1276 }
1277
1278
1279 struct rte_mempool *
1280 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1281                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1282                 int socket_id)
1283 {
1284         struct rte_crypto_op_pool_private *priv;
1285
1286         unsigned elt_size = sizeof(struct rte_crypto_op) +
1287                         sizeof(struct rte_crypto_sym_op) +
1288                         priv_size;
1289
1290         /* lookup mempool in case already allocated */
1291         struct rte_mempool *mp = rte_mempool_lookup(name);
1292
1293         if (mp != NULL) {
1294                 priv = (struct rte_crypto_op_pool_private *)
1295                                 rte_mempool_get_priv(mp);
1296
1297                 if (mp->elt_size != elt_size ||
1298                                 mp->cache_size < cache_size ||
1299                                 mp->size < nb_elts ||
1300                                 priv->priv_size <  priv_size) {
1301                         mp = NULL;
1302                         CDEV_LOG_ERR("Mempool %s already exists but with "
1303                                         "incompatible parameters", name);
1304                         return NULL;
1305                 }
1306                 return mp;
1307         }
1308
1309         mp = rte_mempool_create(
1310                         name,
1311                         nb_elts,
1312                         elt_size,
1313                         cache_size,
1314                         sizeof(struct rte_crypto_op_pool_private),
1315                         NULL,
1316                         NULL,
1317                         rte_crypto_op_init,
1318                         &type,
1319                         socket_id,
1320                         0);
1321
1322         if (mp == NULL) {
1323                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1324                 return NULL;
1325         }
1326
1327         priv = (struct rte_crypto_op_pool_private *)
1328                         rte_mempool_get_priv(mp);
1329
1330         priv->priv_size = priv_size;
1331         priv->type = type;
1332
1333         return mp;
1334 }
1335
1336 int
1337 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1338 {
1339         struct rte_cryptodev *dev = NULL;
1340         uint32_t i = 0;
1341
1342         if (name == NULL)
1343                 return -EINVAL;
1344
1345         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1346                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1347                                 "%s_%u", dev_name_prefix, i);
1348
1349                 if (ret < 0)
1350                         return ret;
1351
1352                 dev = rte_cryptodev_pmd_get_named_dev(name);
1353                 if (!dev)
1354                         return 0;
1355         }
1356
1357         return -1;
1358 }
1359
1360 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1361
1362 static struct cryptodev_driver_list cryptodev_driver_list =
1363         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1364
1365 struct cryptodev_driver {
1366         TAILQ_ENTRY(cryptodev_driver) next; /**< Next in list. */
1367         const struct rte_driver *driver;
1368         uint8_t id;
1369 };
1370
1371 int
1372 rte_cryptodev_driver_id_get(const char *name)
1373 {
1374         struct cryptodev_driver *driver;
1375         const char *driver_name;
1376
1377         if (name == NULL) {
1378                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1379                 return -1;
1380         }
1381
1382         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1383                 driver_name = driver->driver->name;
1384                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1385                         return driver->id;
1386         }
1387         return -1;
1388 }
1389
1390 const char *
1391 rte_cryptodev_driver_name_get(uint8_t driver_id)
1392 {
1393         struct cryptodev_driver *driver;
1394
1395         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1396                 if (driver->id == driver_id)
1397                         return driver->driver->name;
1398         return NULL;
1399 }
1400
1401 uint8_t
1402 rte_cryptodev_allocate_driver(const struct rte_driver *drv)
1403 {
1404         struct cryptodev_driver *driver;
1405
1406         driver = malloc(sizeof(*driver));
1407         driver->driver = drv;
1408         driver->id = nb_drivers;
1409
1410         TAILQ_INSERT_TAIL(&cryptodev_driver_list, driver, next);
1411
1412         return nb_drivers++;
1413 }