lib/librte_cryptodev/rte_cryptodev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/types.h>
  34 #include <sys/queue.h>
  35 #include <ctype.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <stdarg.h>
  40 #include <errno.h>
  41 #include <stdint.h>
  42 #include <inttypes.h>
  43 #include <netinet/in.h>
  44
  45 #include <rte_byteorder.h>
  46 #include <rte_log.h>
  47 #include <rte_debug.h>
  48 #include <rte_dev.h>
  49 #include <rte_interrupts.h>
  50 #include <rte_memory.h>
  51 #include <rte_memcpy.h>
  52 #include <rte_memzone.h>
  53 #include <rte_launch.h>
  54 #include <rte_tailq.h>
  55 #include <rte_eal.h>
  56 #include <rte_per_lcore.h>
  57 #include <rte_lcore.h>
  58 #include <rte_atomic.h>
  59 #include <rte_branch_prediction.h>
  60 #include <rte_common.h>
  61 #include <rte_mempool.h>
  62 #include <rte_malloc.h>
  63 #include <rte_mbuf.h>
  64 #include <rte_errno.h>
  65 #include <rte_spinlock.h>
  66 #include <rte_string_fns.h>
  67
  68 #include "rte_crypto.h"
  69 #include "rte_cryptodev.h"
  70 #include "rte_cryptodev_pmd.h"
  71
  72 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  73
  74 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  75
  76 static struct rte_cryptodev_global cryptodev_globals = {
  77                 .devs                   = &rte_crypto_devices[0],
  78                 .data                   = { NULL },
  79                 .nb_devs                = 0,
  80                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  81 };
  82
  83 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  84
  85 /* spinlock for crypto device callbacks */
  86 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  87
  88
  89 /**
  90  * The user application callback description.
  91  *
  92  * It contains callback address to be registered by user application,
  93  * the pointer to the parameters for callback, and the event type.
  94  */
  95 struct rte_cryptodev_callback {
  96         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  97         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
  98         void *cb_arg;                           /**< Parameter for callback */
  99         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
 100         uint32_t active;                        /**< Callback is executing */
 101 };
 102
 103 /**
 104  * The crypto cipher algorithm strings identifiers.
 105  * It could be used in application command line.
 106  */
 107 const char *
 108 rte_crypto_cipher_algorithm_strings[] = {
 109         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
 110         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
 111         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
 112
 113         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
 114         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
 115         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
 116         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
 117         [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
 118         [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",
 119
 120         [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",
 121
 122         [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
 123         [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",
 124
 125         [RTE_CRYPTO_CIPHER_NULL]        = "null",
 126
 127         [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
 128         [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
 129         [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
 130 };
 131
 132 /**
 133  * The crypto cipher operation strings identifiers.
 134  * It could be used in application command line.
 135  */
 136 const char *
 137 rte_crypto_cipher_operation_strings[] = {
 138                 [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
 139                 [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
 140 };
 141
 142 /**
 143  * The crypto auth algorithm strings identifiers.
 144  * It could be used in application command line.
 145  */
 146 const char *
 147 rte_crypto_auth_algorithm_strings[] = {
 148         [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
 149         [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
 150         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 151         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 152
 153         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 154         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 155
 156         [RTE_CRYPTO_AUTH_NULL]          = "null",
 157
 158         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 159         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 160
 161         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 162         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 163         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 164         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 165         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 166         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 167         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 168         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 169
 170         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 171         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 172         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 173 };
 174
 175 /**
 176  * The crypto AEAD algorithm strings identifiers.
 177  * It could be used in application command line.
 178  */
 179 const char *
 180 rte_crypto_aead_algorithm_strings[] = {
 181         [RTE_CRYPTO_AEAD_AES_CCM]       = "aes-ccm",
 182         [RTE_CRYPTO_AEAD_AES_GCM]       = "aes-gcm",
 183 };
 184
 185 /**
 186  * The crypto AEAD operation strings identifiers.
 187  * It could be used in application command line.
 188  */
 189 const char *
 190 rte_crypto_aead_operation_strings[] = {
 191         [RTE_CRYPTO_AEAD_OP_ENCRYPT]    = "encrypt",
 192         [RTE_CRYPTO_AEAD_OP_DECRYPT]    = "decrypt"
 193 };
 194
 195 int
 196 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 197                 const char *algo_string)
 198 {
 199         unsigned int i;
 200
 201         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 202                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 203                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 204                         return 0;
 205                 }
 206         }
 207
 208         /* Invalid string */
 209         return -1;
 210 }
 211
 212 int
 213 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 214                 const char *algo_string)
 215 {
 216         unsigned int i;
 217
 218         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 219                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 220                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 221                         return 0;
 222                 }
 223         }
 224
 225         /* Invalid string */
 226         return -1;
 227 }
 228
 229 int
 230 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
 231                 const char *algo_string)
 232 {
 233         unsigned int i;
 234
 235         for (i = 1; i < RTE_DIM(rte_crypto_aead_algorithm_strings); i++) {
 236                 if (strcmp(algo_string, rte_crypto_aead_algorithm_strings[i]) == 0) {
 237                         *algo_enum = (enum rte_crypto_aead_algorithm) i;
 238                         return 0;
 239                 }
 240         }
 241
 242         /* Invalid string */
 243         return -1;
 244 }
 245
 246 /**
 247  * The crypto auth operation strings identifiers.
 248  * It could be used in application command line.
 249  */
 250 const char *
 251 rte_crypto_auth_operation_strings[] = {
 252                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 253                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 254 };
 255
 256 const struct rte_cryptodev_symmetric_capability *
 257 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 258                 const struct rte_cryptodev_sym_capability_idx *idx)
 259 {
 260         const struct rte_cryptodev_capabilities *capability;
 261         struct rte_cryptodev_info dev_info;
 262         int i = 0;
 263
 264         rte_cryptodev_info_get(dev_id, &dev_info);
 265
 266         while ((capability = &dev_info.capabilities[i++])->op !=
 267                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 268                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 269                         continue;
 270
 271                 if (capability->sym.xform_type != idx->type)
 272                         continue;
 273
 274                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 275                         capability->sym.auth.algo == idx->algo.auth)
 276                         return &capability->sym;
 277
 278                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 279                         capability->sym.cipher.algo == idx->algo.cipher)
 280                         return &capability->sym;
 281
 282                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AEAD &&
 283                                 capability->sym.aead.algo == idx->algo.aead)
 284                         return &capability->sym;
 285         }
 286
 287         return NULL;
 288
 289 }
 290
 291 #define param_range_check(x, y) \
 292         (((x < y.min) || (x > y.max)) || \
 293         (y.increment != 0 && (x % y.increment) != 0))
 294
 295 int
 296 rte_cryptodev_sym_capability_check_cipher(
 297                 const struct rte_cryptodev_symmetric_capability *capability,
 298                 uint16_t key_size, uint16_t iv_size)
 299 {
 300         if (param_range_check(key_size, capability->cipher.key_size))
 301                 return -1;
 302
 303         if (param_range_check(iv_size, capability->cipher.iv_size))
 304                 return -1;
 305
 306         return 0;
 307 }
 308
 309 int
 310 rte_cryptodev_sym_capability_check_auth(
 311                 const struct rte_cryptodev_symmetric_capability *capability,
 312                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 313                 uint16_t iv_size)
 314 {
 315         if (param_range_check(key_size, capability->auth.key_size))
 316                 return -1;
 317
 318         if (param_range_check(digest_size, capability->auth.digest_size))
 319                 return -1;
 320
 321         if (param_range_check(aad_size, capability->auth.aad_size))
 322                 return -1;
 323
 324         if (param_range_check(iv_size, capability->auth.iv_size))
 325                 return -1;
 326
 327         return 0;
 328 }
 329
 330 int
 331 rte_cryptodev_sym_capability_check_aead(
 332                 const struct rte_cryptodev_symmetric_capability *capability,
 333                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 334                 uint16_t iv_size)
 335 {
 336         if (param_range_check(key_size, capability->aead.key_size))
 337                 return -1;
 338
 339         if (param_range_check(digest_size, capability->aead.digest_size))
 340                 return -1;
 341
 342         if (param_range_check(aad_size, capability->aead.aad_size))
 343                 return -1;
 344
 345         if (param_range_check(iv_size, capability->aead.iv_size))
 346                 return -1;
 347
 348         return 0;
 349 }
 350
 351 const char *
 352 rte_cryptodev_get_feature_name(uint64_t flag)
 353 {
 354         switch (flag) {
 355         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 356                 return "SYMMETRIC_CRYPTO";
 357         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 358                 return "ASYMMETRIC_CRYPTO";
 359         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 360                 return "SYM_OPERATION_CHAINING";
 361         case RTE_CRYPTODEV_FF_CPU_SSE:
 362                 return "CPU_SSE";
 363         case RTE_CRYPTODEV_FF_CPU_AVX:
 364                 return "CPU_AVX";
 365         case RTE_CRYPTODEV_FF_CPU_AVX2:
 366                 return "CPU_AVX2";
 367         case RTE_CRYPTODEV_FF_CPU_AESNI:
 368                 return "CPU_AESNI";
 369         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 370                 return "HW_ACCELERATED";
 371         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 372                 return "MBUF_SCATTER_GATHER";
 373         case RTE_CRYPTODEV_FF_CPU_NEON:
 374                 return "CPU_NEON";
 375         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 376                 return "CPU_ARM_CE";
 377         default:
 378                 return NULL;
 379         }
 380 }
 381
 382 int
 383 rte_cryptodev_create_vdev(const char *name, const char *args)
 384 {
 385         return rte_vdev_init(name, args);
 386 }
 387
 388 struct rte_cryptodev *
 389 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 390 {
 391         return &rte_cryptodev_globals->devs[dev_id];
 392 }
 393
 394 struct rte_cryptodev *
 395 rte_cryptodev_pmd_get_named_dev(const char *name)
 396 {
 397         struct rte_cryptodev *dev;
 398         unsigned int i;
 399
 400         if (name == NULL)
 401                 return NULL;
 402
 403         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 404                 dev = &rte_cryptodev_globals->devs[i];
 405
 406                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 407                                 (strcmp(dev->data->name, name) == 0))
 408                         return dev;
 409         }
 410
 411         return NULL;
 412 }
 413
 414 unsigned int
 415 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 416 {
 417         struct rte_cryptodev *dev = NULL;
 418
 419         if (dev_id >= rte_cryptodev_globals->nb_devs)
 420                 return 0;
 421
 422         dev = rte_cryptodev_pmd_get_dev(dev_id);
 423         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 424                 return 0;
 425         else
 426                 return 1;
 427 }
 428
 429
 430 int
 431 rte_cryptodev_get_dev_id(const char *name)
 432 {
 433         unsigned i;
 434
 435         if (name == NULL)
 436                 return -1;
 437
 438         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 439                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 440                                 == 0) &&
 441                                 (rte_cryptodev_globals->devs[i].attached ==
 442                                                 RTE_CRYPTODEV_ATTACHED))
 443                         return i;
 444
 445         return -1;
 446 }
 447
 448 uint8_t
 449 rte_cryptodev_count(void)
 450 {
 451         return rte_cryptodev_globals->nb_devs;
 452 }
 453
 454 uint8_t
 455 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 456 {
 457         uint8_t i, dev_count = 0;
 458
 459         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 460                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 461                         rte_cryptodev_globals->devs[i].attached ==
 462                                         RTE_CRYPTODEV_ATTACHED)
 463                         dev_count++;
 464
 465         return dev_count;
 466 }
 467
 468 uint8_t
 469 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 470         uint8_t nb_devices)
 471 {
 472         uint8_t i, count = 0;
 473         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 474         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 475
 476         for (i = 0; i < max_devs && count < nb_devices; i++) {
 477
 478                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 479                         int cmp;
 480
 481                         cmp = strncmp(devs[i].device->driver->name,
 482                                         driver_name,
 483                                         strlen(driver_name));
 484
 485                         if (cmp == 0)
 486                                 devices[count++] = devs[i].data->dev_id;
 487                 }
 488         }
 489
 490         return count;
 491 }
 492
 493 int
 494 rte_cryptodev_socket_id(uint8_t dev_id)
 495 {
 496         struct rte_cryptodev *dev;
 497
 498         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 499                 return -1;
 500
 501         dev = rte_cryptodev_pmd_get_dev(dev_id);
 502
 503         return dev->data->socket_id;
 504 }
 505
 506 static inline int
 507 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 508                 int socket_id)
 509 {
 510         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 511         const struct rte_memzone *mz;
 512         int n;
 513
 514         /* generate memzone name */
 515         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 516         if (n >= (int)sizeof(mz_name))
 517                 return -EINVAL;
 518
 519         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 520                 mz = rte_memzone_reserve(mz_name,
 521                                 sizeof(struct rte_cryptodev_data),
 522                                 socket_id, 0);
 523         } else
 524                 mz = rte_memzone_lookup(mz_name);
 525
 526         if (mz == NULL)
 527                 return -ENOMEM;
 528
 529         *data = mz->addr;
 530         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 531                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 532
 533         return 0;
 534 }
 535
 536 static uint8_t
 537 rte_cryptodev_find_free_device_index(void)
 538 {
 539         uint8_t dev_id;
 540
 541         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 542                 if (rte_crypto_devices[dev_id].attached ==
 543                                 RTE_CRYPTODEV_DETACHED)
 544                         return dev_id;
 545         }
 546         return RTE_CRYPTO_MAX_DEVS;
 547 }
 548
 549 struct rte_cryptodev *
 550 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 551 {
 552         struct rte_cryptodev *cryptodev;
 553         uint8_t dev_id;
 554
 555         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 556                 CDEV_LOG_ERR("Crypto device with name %s already "
 557                                 "allocated!", name);
 558                 return NULL;
 559         }
 560
 561         dev_id = rte_cryptodev_find_free_device_index();
 562         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 563                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 564                 return NULL;
 565         }
 566
 567         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 568
 569         if (cryptodev->data == NULL) {
 570                 struct rte_cryptodev_data *cryptodev_data =
 571                                 cryptodev_globals.data[dev_id];
 572
 573                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 574                                 socket_id);
 575
 576                 if (retval < 0 || cryptodev_data == NULL)
 577                         return NULL;
 578
 579                 cryptodev->data = cryptodev_data;
 580
 581                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 582                                 "%s", name);
 583
 584                 cryptodev->data->dev_id = dev_id;
 585                 cryptodev->data->socket_id = socket_id;
 586                 cryptodev->data->dev_started = 0;
 587
 588                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 589
 590                 cryptodev_globals.nb_devs++;
 591         }
 592
 593         return cryptodev;
 594 }
 595
 596 int
 597 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 598 {
 599         int ret;
 600
 601         if (cryptodev == NULL)
 602                 return -EINVAL;
 603
 604         /* Close device only if device operations have been set */
 605         if (cryptodev->dev_ops) {
 606                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 607                 if (ret < 0)
 608                         return ret;
 609         }
 610
 611         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 612         cryptodev_globals.nb_devs--;
 613         return 0;
 614 }
 615
 616 uint16_t
 617 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 618 {
 619         struct rte_cryptodev *dev;
 620
 621         dev = &rte_crypto_devices[dev_id];
 622         return dev->data->nb_queue_pairs;
 623 }
 624
 625 static int
 626 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 627                 int socket_id)
 628 {
 629         struct rte_cryptodev_info dev_info;
 630         void **qp;
 631         unsigned i;
 632
 633         if ((dev == NULL) || (nb_qpairs < 1)) {
 634                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 635                                                         dev, nb_qpairs);
 636                 return -EINVAL;
 637         }
 638
 639         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 640                         nb_qpairs, dev->data->dev_id);
 641
 642         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 643
 644         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 645         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 646
 647         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 648                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 649                                 nb_qpairs, dev->data->dev_id);
 650             return -EINVAL;
 651         }
 652
 653         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 654                 dev->data->queue_pairs = rte_zmalloc_socket(
 655                                 "cryptodev->queue_pairs",
 656                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 657                                 RTE_CACHE_LINE_SIZE, socket_id);
 658
 659                 if (dev->data->queue_pairs == NULL) {
 660                         dev->data->nb_queue_pairs = 0;
 661                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 662                                                         "nb_queues %u",
 663                                                         nb_qpairs);
 664                         return -(ENOMEM);
 665                 }
 666         } else { /* re-configure */
 667                 int ret;
 668                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 669
 670                 qp = dev->data->queue_pairs;
 671
 672                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 673                                 -ENOTSUP);
 674
 675                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 676                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 677                         if (ret < 0)
 678                                 return ret;
 679                 }
 680
 681                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 682                                 RTE_CACHE_LINE_SIZE);
 683                 if (qp == NULL) {
 684                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 685                                                 " nb_queues %u", nb_qpairs);
 686                         return -(ENOMEM);
 687                 }
 688
 689                 if (nb_qpairs > old_nb_queues) {
 690                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 691
 692                         memset(qp + old_nb_queues, 0,
 693                                 sizeof(qp[0]) * new_qs);
 694                 }
 695
 696                 dev->data->queue_pairs = qp;
 697
 698         }
 699         dev->data->nb_queue_pairs = nb_qpairs;
 700         return 0;
 701 }
 702
 703 int
 704 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 705 {
 706         struct rte_cryptodev *dev;
 707
 708         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 709                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 710                 return -EINVAL;
 711         }
 712
 713         dev = &rte_crypto_devices[dev_id];
 714         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 715                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 716                 return -EINVAL;
 717         }
 718
 719         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 720
 721         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 722
 723 }
 724
 725 int
 726 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 727 {
 728         struct rte_cryptodev *dev;
 729
 730         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 731                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 732                 return -EINVAL;
 733         }
 734
 735         dev = &rte_crypto_devices[dev_id];
 736         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 737                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 738                 return -EINVAL;
 739         }
 740
 741         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 742
 743         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 744
 745 }
 746
 747 static int
 748 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 749                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 750
 751 int
 752 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 753 {
 754         struct rte_cryptodev *dev;
 755         int diag;
 756
 757         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 758                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 759                 return -EINVAL;
 760         }
 761
 762         dev = &rte_crypto_devices[dev_id];
 763
 764         if (dev->data->dev_started) {
 765                 CDEV_LOG_ERR(
 766                     "device %d must be stopped to allow configuration", dev_id);
 767                 return -EBUSY;
 768         }
 769
 770         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 771
 772         /* Setup new number of queue pairs and reconfigure device. */
 773         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 774                         config->socket_id);
 775         if (diag != 0) {
 776                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 777                                 dev_id, diag);
 778                 return diag;
 779         }
 780
 781         /* Setup Session mempool for device */
 782         diag = rte_cryptodev_sym_session_pool_create(dev,
 783                         config->session_mp.nb_objs,
 784                         config->session_mp.cache_size,
 785                         config->socket_id);
 786         if (diag != 0)
 787                 return diag;
 788
 789         return (*dev->dev_ops->dev_configure)(dev, config);
 790 }
 791
 792
 793 int
 794 rte_cryptodev_start(uint8_t dev_id)
 795 {
 796         struct rte_cryptodev *dev;
 797         int diag;
 798
 799         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 800
 801         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 802                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 803                 return -EINVAL;
 804         }
 805
 806         dev = &rte_crypto_devices[dev_id];
 807
 808         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 809
 810         if (dev->data->dev_started != 0) {
 811                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 812                         dev_id);
 813                 return 0;
 814         }
 815
 816         diag = (*dev->dev_ops->dev_start)(dev);
 817         if (diag == 0)
 818                 dev->data->dev_started = 1;
 819         else
 820                 return diag;
 821
 822         return 0;
 823 }
 824
 825 void
 826 rte_cryptodev_stop(uint8_t dev_id)
 827 {
 828         struct rte_cryptodev *dev;
 829
 830         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 831                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 832                 return;
 833         }
 834
 835         dev = &rte_crypto_devices[dev_id];
 836
 837         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 838
 839         if (dev->data->dev_started == 0) {
 840                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 841                         dev_id);
 842                 return;
 843         }
 844
 845         (*dev->dev_ops->dev_stop)(dev);
 846         dev->data->dev_started = 0;
 847 }
 848
 849 int
 850 rte_cryptodev_close(uint8_t dev_id)
 851 {
 852         struct rte_cryptodev *dev;
 853         int retval;
 854
 855         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 856                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 857                 return -1;
 858         }
 859
 860         dev = &rte_crypto_devices[dev_id];
 861
 862         /* Device must be stopped before it can be closed */
 863         if (dev->data->dev_started == 1) {
 864                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 865                                 dev_id);
 866                 return -EBUSY;
 867         }
 868
 869         /* We can't close the device if there are outstanding sessions in use */
 870         if (dev->data->session_pool != NULL) {
 871                 if (!rte_mempool_full(dev->data->session_pool)) {
 872                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 873                                         "has sessions still in use, free "
 874                                         "all sessions before calling close",
 875                                         (unsigned)dev_id);
 876                         return -EBUSY;
 877                 }
 878         }
 879
 880         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 881         retval = (*dev->dev_ops->dev_close)(dev);
 882
 883         if (retval < 0)
 884                 return retval;
 885
 886         return 0;
 887 }
 888
 889 int
 890 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 891                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 892 {
 893         struct rte_cryptodev *dev;
 894
 895         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 896                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 897                 return -EINVAL;
 898         }
 899
 900         dev = &rte_crypto_devices[dev_id];
 901         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 902                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 903                 return -EINVAL;
 904         }
 905
 906         if (dev->data->dev_started) {
 907                 CDEV_LOG_ERR(
 908                     "device %d must be stopped to allow configuration", dev_id);
 909                 return -EBUSY;
 910         }
 911
 912         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 913
 914         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 915                         socket_id);
 916 }
 917
 918
 919 int
 920 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 921 {
 922         struct rte_cryptodev *dev;
 923
 924         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 925                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 926                 return -ENODEV;
 927         }
 928
 929         if (stats == NULL) {
 930                 CDEV_LOG_ERR("Invalid stats ptr");
 931                 return -EINVAL;
 932         }
 933
 934         dev = &rte_crypto_devices[dev_id];
 935         memset(stats, 0, sizeof(*stats));
 936
 937         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 938         (*dev->dev_ops->stats_get)(dev, stats);
 939         return 0;
 940 }
 941
 942 void
 943 rte_cryptodev_stats_reset(uint8_t dev_id)
 944 {
 945         struct rte_cryptodev *dev;
 946
 947         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 948                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 949                 return;
 950         }
 951
 952         dev = &rte_crypto_devices[dev_id];
 953
 954         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 955         (*dev->dev_ops->stats_reset)(dev);
 956 }
 957
 958
 959 void
 960 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 961 {
 962         struct rte_cryptodev *dev;
 963
 964         if (dev_id >= cryptodev_globals.nb_devs) {
 965                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 966                 return;
 967         }
 968
 969         dev = &rte_crypto_devices[dev_id];
 970
 971         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 972
 973         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 974         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 975
 976         dev_info->driver_name = dev->device->driver->name;
 977 }
 978
 979
 980 int
 981 rte_cryptodev_callback_register(uint8_t dev_id,
 982                         enum rte_cryptodev_event_type event,
 983                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 984 {
 985         struct rte_cryptodev *dev;
 986         struct rte_cryptodev_callback *user_cb;
 987
 988         if (!cb_fn)
 989                 return -EINVAL;
 990
 991         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 992                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 993                 return -EINVAL;
 994         }
 995
 996         dev = &rte_crypto_devices[dev_id];
 997         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 998
 999         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1000                 if (user_cb->cb_fn == cb_fn &&
1001                         user_cb->cb_arg == cb_arg &&
1002                         user_cb->event == event) {
1003                         break;
1004                 }
1005         }
1006
1007         /* create a new callback. */
1008         if (user_cb == NULL) {
1009                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1010                                 sizeof(struct rte_cryptodev_callback), 0);
1011                 if (user_cb != NULL) {
1012                         user_cb->cb_fn = cb_fn;
1013                         user_cb->cb_arg = cb_arg;
1014                         user_cb->event = event;
1015                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1016                 }
1017         }
1018
1019         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1020         return (user_cb == NULL) ? -ENOMEM : 0;
1021 }
1022
1023 int
1024 rte_cryptodev_callback_unregister(uint8_t dev_id,
1025                         enum rte_cryptodev_event_type event,
1026                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1027 {
1028         int ret;
1029         struct rte_cryptodev *dev;
1030         struct rte_cryptodev_callback *cb, *next;
1031
1032         if (!cb_fn)
1033                 return -EINVAL;
1034
1035         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1036                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1037                 return -EINVAL;
1038         }
1039
1040         dev = &rte_crypto_devices[dev_id];
1041         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1042
1043         ret = 0;
1044         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1045
1046                 next = TAILQ_NEXT(cb, next);
1047
1048                 if (cb->cb_fn != cb_fn || cb->event != event ||
1049                                 (cb->cb_arg != (void *)-1 &&
1050                                 cb->cb_arg != cb_arg))
1051                         continue;
1052
1053                 /*
1054                  * if this callback is not executing right now,
1055                  * then remove it.
1056                  */
1057                 if (cb->active == 0) {
1058                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1059                         rte_free(cb);
1060                 } else {
1061                         ret = -EAGAIN;
1062                 }
1063         }
1064
1065         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1066         return ret;
1067 }
1068
1069 void
1070 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1071         enum rte_cryptodev_event_type event)
1072 {
1073         struct rte_cryptodev_callback *cb_lst;
1074         struct rte_cryptodev_callback dev_cb;
1075
1076         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1077         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1078                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1079                         continue;
1080                 dev_cb = *cb_lst;
1081                 cb_lst->active = 1;
1082                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1083                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1084                                                 dev_cb.cb_arg);
1085                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1086                 cb_lst->active = 0;
1087         }
1088         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1089 }
1090
1091
1092 static void
1093 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1094                 const struct rte_cryptodev *dev,
1095                 struct rte_cryptodev_sym_session *sess)
1096 {
1097         memset(sess, 0, mp->elt_size);
1098
1099         sess->dev_id = dev->data->dev_id;
1100         sess->driver_id = dev->driver_id;
1101         sess->mp = mp;
1102
1103         if (dev->dev_ops->session_initialize)
1104                 (*dev->dev_ops->session_initialize)(mp, sess);
1105 }
1106
1107 static int
1108 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1109                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1110 {
1111         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1112         unsigned priv_sess_size;
1113
1114         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1115                         dev->data->dev_id);
1116         if (n > sizeof(mp_name)) {
1117                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1118                 return -ENOMEM;
1119         }
1120
1121         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1122         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1123         if (priv_sess_size == 0) {
1124                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1125                                                 dev->data->name);
1126                 return -ENOMEM;
1127         }
1128
1129         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1130                         priv_sess_size;
1131
1132         dev->data->session_pool = rte_mempool_lookup(mp_name);
1133         if (dev->data->session_pool != NULL) {
1134                 if ((dev->data->session_pool->elt_size != elt_size) ||
1135                                 (dev->data->session_pool->cache_size <
1136                                 obj_cache_size) ||
1137                                 (dev->data->session_pool->size < nb_objs)) {
1138
1139                         CDEV_LOG_ERR("%s mempool already exists with different"
1140                                         " initialization parameters", mp_name);
1141                         dev->data->session_pool = NULL;
1142                         return -ENOMEM;
1143                 }
1144         } else {
1145                 dev->data->session_pool = rte_mempool_create(
1146                                 mp_name, /* mempool name */
1147                                 nb_objs, /* number of elements*/
1148                                 elt_size, /* element size*/
1149                                 obj_cache_size, /* Cache size*/
1150                                 0, /* private data size */
1151                                 NULL, /* obj initialization constructor */
1152                                 NULL, /* obj initialization constructor arg */
1153                                 NULL, /**< obj constructor*/
1154                                 dev, /* obj constructor arg */
1155                                 socket_id, /* socket id */
1156                                 0); /* flags */
1157
1158                 if (dev->data->session_pool == NULL) {
1159                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1160                         return -ENOMEM;
1161                 }
1162         }
1163
1164         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1165         return 0;
1166 }
1167
1168 struct rte_cryptodev_sym_session *
1169 rte_cryptodev_sym_session_create(uint8_t dev_id,
1170                 struct rte_crypto_sym_xform *xform)
1171 {
1172         struct rte_cryptodev *dev;
1173         struct rte_cryptodev_sym_session *sess;
1174         void *_sess;
1175
1176         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1177                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1178                 return NULL;
1179         }
1180
1181         dev = &rte_crypto_devices[dev_id];
1182
1183         /* Allocate a session structure from the session pool */
1184         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1185                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1186                 return NULL;
1187         }
1188
1189         sess = _sess;
1190
1191         rte_cryptodev_sym_session_init(dev->data->session_pool, dev,
1192                                         sess);
1193         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1194         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1195                         NULL) {
1196                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1197                                 dev_id);
1198
1199                 /* Return session to mempool */
1200                 rte_mempool_put(sess->mp, _sess);
1201                 return NULL;
1202         }
1203
1204         return sess;
1205 }
1206
1207 int
1208 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
1209                 struct rte_cryptodev_sym_session *sess)
1210 {
1211         struct rte_cryptodev *dev;
1212
1213         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1214                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1215                 return -EINVAL;
1216         }
1217
1218         dev = &rte_crypto_devices[sess->dev_id];
1219
1220         /* The API is optional, not returning error if driver do not suuport */
1221         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1222         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
1223                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1224                                 sess->dev_id, qp_id);
1225                 return -EPERM;
1226         }
1227
1228         return 0;
1229 }
1230
1231 int
1232 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
1233                 struct rte_cryptodev_sym_session *sess)
1234 {
1235         struct rte_cryptodev *dev;
1236
1237         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1238                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1239                 return -EINVAL;
1240         }
1241
1242         dev = &rte_crypto_devices[sess->dev_id];
1243
1244         /* The API is optional, not returning error if driver do not suuport */
1245         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1246         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
1247                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1248                                 sess->dev_id, qp_id);
1249                 return -EPERM;
1250         }
1251
1252         return 0;
1253 }
1254 struct rte_cryptodev_sym_session *
1255 rte_cryptodev_sym_session_free(uint8_t dev_id,
1256                 struct rte_cryptodev_sym_session *sess)
1257 {
1258         struct rte_cryptodev *dev;
1259
1260         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1261                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1262                 return sess;
1263         }
1264
1265         dev = &rte_crypto_devices[dev_id];
1266
1267         /* Check the session belongs to this device type */
1268         if (sess->driver_id != dev->driver_id)
1269                 return sess;
1270
1271         /* Let device implementation clear session material */
1272         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1273         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1274
1275         /* Return session to mempool */
1276         rte_mempool_put(sess->mp, (void *)sess);
1277
1278         return NULL;
1279 }
1280
1281 /** Initialise rte_crypto_op mempool element */
1282 static void
1283 rte_crypto_op_init(struct rte_mempool *mempool,
1284                 void *opaque_arg,
1285                 void *_op_data,
1286                 __rte_unused unsigned i)
1287 {
1288         struct rte_crypto_op *op = _op_data;
1289         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1290
1291         memset(_op_data, 0, mempool->elt_size);
1292
1293         __rte_crypto_op_reset(op, type);
1294
1295         op->phys_addr = rte_mem_virt2phy(_op_data);
1296         op->mempool = mempool;
1297 }
1298
1299
1300 struct rte_mempool *
1301 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1302                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1303                 int socket_id)
1304 {
1305         struct rte_crypto_op_pool_private *priv;
1306
1307         unsigned elt_size = sizeof(struct rte_crypto_op) +
1308                         sizeof(struct rte_crypto_sym_op) +
1309                         priv_size;
1310
1311         /* lookup mempool in case already allocated */
1312         struct rte_mempool *mp = rte_mempool_lookup(name);
1313
1314         if (mp != NULL) {
1315                 priv = (struct rte_crypto_op_pool_private *)
1316                                 rte_mempool_get_priv(mp);
1317
1318                 if (mp->elt_size != elt_size ||
1319                                 mp->cache_size < cache_size ||
1320                                 mp->size < nb_elts ||
1321                                 priv->priv_size <  priv_size) {
1322                         mp = NULL;
1323                         CDEV_LOG_ERR("Mempool %s already exists but with "
1324                                         "incompatible parameters", name);
1325                         return NULL;
1326                 }
1327                 return mp;
1328         }
1329
1330         mp = rte_mempool_create(
1331                         name,
1332                         nb_elts,
1333                         elt_size,
1334                         cache_size,
1335                         sizeof(struct rte_crypto_op_pool_private),
1336                         NULL,
1337                         NULL,
1338                         rte_crypto_op_init,
1339                         &type,
1340                         socket_id,
1341                         0);
1342
1343         if (mp == NULL) {
1344                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1345                 return NULL;
1346         }
1347
1348         priv = (struct rte_crypto_op_pool_private *)
1349                         rte_mempool_get_priv(mp);
1350
1351         priv->priv_size = priv_size;
1352         priv->type = type;
1353
1354         return mp;
1355 }
1356
1357 int
1358 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1359 {
1360         struct rte_cryptodev *dev = NULL;
1361         uint32_t i = 0;
1362
1363         if (name == NULL)
1364                 return -EINVAL;
1365
1366         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1367                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1368                                 "%s_%u", dev_name_prefix, i);
1369
1370                 if (ret < 0)
1371                         return ret;
1372
1373                 dev = rte_cryptodev_pmd_get_named_dev(name);
1374                 if (!dev)
1375                         return 0;
1376         }
1377
1378         return -1;
1379 }
1380
1381 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1382
1383 static struct cryptodev_driver_list cryptodev_driver_list =
1384         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1385
1386 struct cryptodev_driver {
1387         TAILQ_ENTRY(cryptodev_driver) next; /**< Next in list. */
1388         const struct rte_driver *driver;
1389         uint8_t id;
1390 };
1391
1392 static uint8_t nb_drivers;
1393
1394 int
1395 rte_cryptodev_driver_id_get(const char *name)
1396 {
1397         struct cryptodev_driver *driver;
1398         const char *driver_name;
1399
1400         if (name == NULL) {
1401                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1402                 return -1;
1403         }
1404
1405         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1406                 driver_name = driver->driver->name;
1407                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1408                         return driver->id;
1409         }
1410         return -1;
1411 }
1412
1413 const char *
1414 rte_cryptodev_driver_name_get(uint8_t driver_id)
1415 {
1416         struct cryptodev_driver *driver;
1417
1418         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1419                 if (driver->id == driver_id)
1420                         return driver->driver->name;
1421         return NULL;
1422 }
1423
1424 uint8_t
1425 rte_cryptodev_allocate_driver(const struct rte_driver *drv)
1426 {
1427         struct cryptodev_driver *driver;
1428
1429         driver = malloc(sizeof(*driver));
1430         driver->driver = drv;
1431         driver->id = nb_drivers;
1432
1433         TAILQ_INSERT_TAIL(&cryptodev_driver_list, driver, next);
1434
1435         return nb_drivers++;
1436 }