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