lib/librte_cryptodev/rte_cryptodev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2017 Intel Corporation
   3  */
   4
   5 #include <sys/types.h>
   6 #include <sys/queue.h>
   7 #include <ctype.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <stdarg.h>
  12 #include <errno.h>
  13 #include <stdint.h>
  14 #include <inttypes.h>
  15 #include <netinet/in.h>
  16
  17 #include <rte_byteorder.h>
  18 #include <rte_log.h>
  19 #include <rte_debug.h>
  20 #include <rte_dev.h>
  21 #include <rte_interrupts.h>
  22 #include <rte_memory.h>
  23 #include <rte_memcpy.h>
  24 #include <rte_memzone.h>
  25 #include <rte_launch.h>
  26 #include <rte_tailq.h>
  27 #include <rte_eal.h>
  28 #include <rte_per_lcore.h>
  29 #include <rte_lcore.h>
  30 #include <rte_atomic.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_common.h>
  33 #include <rte_mempool.h>
  34 #include <rte_malloc.h>
  35 #include <rte_mbuf.h>
  36 #include <rte_errno.h>
  37 #include <rte_spinlock.h>
  38 #include <rte_string_fns.h>
  39
  40 #include "rte_crypto.h"
  41 #include "rte_cryptodev.h"
  42 #include "rte_cryptodev_pmd.h"
  43
  44 static uint8_t nb_drivers;
  45
  46 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  47
  48 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  49
  50 static struct rte_cryptodev_global cryptodev_globals = {
  51                 .devs                   = &rte_crypto_devices[0],
  52                 .data                   = { NULL },
  53                 .nb_devs                = 0,
  54                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  55 };
  56
  57 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  58
  59 /* spinlock for crypto device callbacks */
  60 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  61
  62
  63 /**
  64  * The user application callback description.
  65  *
  66  * It contains callback address to be registered by user application,
  67  * the pointer to the parameters for callback, and the event type.
  68  */
  69 struct rte_cryptodev_callback {
  70         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  71         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
  72         void *cb_arg;                           /**< Parameter for callback */
  73         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
  74         uint32_t active;                        /**< Callback is executing */
  75 };
  76
  77 /**
  78  * The crypto cipher algorithm strings identifiers.
  79  * It could be used in application command line.
  80  */
  81 const char *
  82 rte_crypto_cipher_algorithm_strings[] = {
  83         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
  84         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
  85         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
  86
  87         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
  88         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
  89         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
  90         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
  91         [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
  92         [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",
  93
  94         [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",
  95
  96         [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
  97         [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",
  98
  99         [RTE_CRYPTO_CIPHER_NULL]        = "null",
 100
 101         [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
 102         [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
 103         [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
 104 };
 105
 106 /**
 107  * The crypto cipher operation strings identifiers.
 108  * It could be used in application command line.
 109  */
 110 const char *
 111 rte_crypto_cipher_operation_strings[] = {
 112                 [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
 113                 [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
 114 };
 115
 116 /**
 117  * The crypto auth algorithm strings identifiers.
 118  * It could be used in application command line.
 119  */
 120 const char *
 121 rte_crypto_auth_algorithm_strings[] = {
 122         [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
 123         [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
 124         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 125         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 126
 127         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 128         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 129
 130         [RTE_CRYPTO_AUTH_NULL]          = "null",
 131
 132         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 133         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 134
 135         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 136         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 137         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 138         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 139         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 140         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 141         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 142         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 143
 144         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 145         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 146         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 147 };
 148
 149 /**
 150  * The crypto AEAD algorithm strings identifiers.
 151  * It could be used in application command line.
 152  */
 153 const char *
 154 rte_crypto_aead_algorithm_strings[] = {
 155         [RTE_CRYPTO_AEAD_AES_CCM]       = "aes-ccm",
 156         [RTE_CRYPTO_AEAD_AES_GCM]       = "aes-gcm",
 157 };
 158
 159 /**
 160  * The crypto AEAD operation strings identifiers.
 161  * It could be used in application command line.
 162  */
 163 const char *
 164 rte_crypto_aead_operation_strings[] = {
 165         [RTE_CRYPTO_AEAD_OP_ENCRYPT]    = "encrypt",
 166         [RTE_CRYPTO_AEAD_OP_DECRYPT]    = "decrypt"
 167 };
 168
 169 int
 170 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 171                 const char *algo_string)
 172 {
 173         unsigned int i;
 174
 175         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 176                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 177                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 178                         return 0;
 179                 }
 180         }
 181
 182         /* Invalid string */
 183         return -1;
 184 }
 185
 186 int
 187 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 188                 const char *algo_string)
 189 {
 190         unsigned int i;
 191
 192         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 193                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 194                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 195                         return 0;
 196                 }
 197         }
 198
 199         /* Invalid string */
 200         return -1;
 201 }
 202
 203 int
 204 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
 205                 const char *algo_string)
 206 {
 207         unsigned int i;
 208
 209         for (i = 1; i < RTE_DIM(rte_crypto_aead_algorithm_strings); i++) {
 210                 if (strcmp(algo_string, rte_crypto_aead_algorithm_strings[i]) == 0) {
 211                         *algo_enum = (enum rte_crypto_aead_algorithm) i;
 212                         return 0;
 213                 }
 214         }
 215
 216         /* Invalid string */
 217         return -1;
 218 }
 219
 220 /**
 221  * The crypto auth operation strings identifiers.
 222  * It could be used in application command line.
 223  */
 224 const char *
 225 rte_crypto_auth_operation_strings[] = {
 226                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 227                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 228 };
 229
 230 const struct rte_cryptodev_symmetric_capability *
 231 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 232                 const struct rte_cryptodev_sym_capability_idx *idx)
 233 {
 234         const struct rte_cryptodev_capabilities *capability;
 235         struct rte_cryptodev_info dev_info;
 236         int i = 0;
 237
 238         rte_cryptodev_info_get(dev_id, &dev_info);
 239
 240         while ((capability = &dev_info.capabilities[i++])->op !=
 241                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 242                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 243                         continue;
 244
 245                 if (capability->sym.xform_type != idx->type)
 246                         continue;
 247
 248                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 249                         capability->sym.auth.algo == idx->algo.auth)
 250                         return &capability->sym;
 251
 252                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 253                         capability->sym.cipher.algo == idx->algo.cipher)
 254                         return &capability->sym;
 255
 256                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AEAD &&
 257                                 capability->sym.aead.algo == idx->algo.aead)
 258                         return &capability->sym;
 259         }
 260
 261         return NULL;
 262
 263 }
 264
 265 static int
 266 param_range_check(uint16_t size, const struct rte_crypto_param_range *range)
 267 {
 268         unsigned int next_size;
 269
 270         /* Check lower/upper bounds */
 271         if (size < range->min)
 272                 return -1;
 273
 274         if (size > range->max)
 275                 return -1;
 276
 277         /* If range is actually only one value, size is correct */
 278         if (range->increment == 0)
 279                 return 0;
 280
 281         /* Check if value is one of the supported sizes */
 282         for (next_size = range->min; next_size <= range->max;
 283                         next_size += range->increment)
 284                 if (size == next_size)
 285                         return 0;
 286
 287         return -1;
 288 }
 289
 290 int
 291 rte_cryptodev_sym_capability_check_cipher(
 292                 const struct rte_cryptodev_symmetric_capability *capability,
 293                 uint16_t key_size, uint16_t iv_size)
 294 {
 295         if (param_range_check(key_size, &capability->cipher.key_size) != 0)
 296                 return -1;
 297
 298         if (param_range_check(iv_size, &capability->cipher.iv_size) != 0)
 299                 return -1;
 300
 301         return 0;
 302 }
 303
 304 int
 305 rte_cryptodev_sym_capability_check_auth(
 306                 const struct rte_cryptodev_symmetric_capability *capability,
 307                 uint16_t key_size, uint16_t digest_size, uint16_t iv_size)
 308 {
 309         if (param_range_check(key_size, &capability->auth.key_size) != 0)
 310                 return -1;
 311
 312         if (param_range_check(digest_size, &capability->auth.digest_size) != 0)
 313                 return -1;
 314
 315         if (param_range_check(iv_size, &capability->auth.iv_size) != 0)
 316                 return -1;
 317
 318         return 0;
 319 }
 320
 321 int
 322 rte_cryptodev_sym_capability_check_aead(
 323                 const struct rte_cryptodev_symmetric_capability *capability,
 324                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 325                 uint16_t iv_size)
 326 {
 327         if (param_range_check(key_size, &capability->aead.key_size) != 0)
 328                 return -1;
 329
 330         if (param_range_check(digest_size, &capability->aead.digest_size) != 0)
 331                 return -1;
 332
 333         if (param_range_check(aad_size, &capability->aead.aad_size) != 0)
 334                 return -1;
 335
 336         if (param_range_check(iv_size, &capability->aead.iv_size) != 0)
 337                 return -1;
 338
 339         return 0;
 340 }
 341
 342 const char *
 343 rte_cryptodev_get_feature_name(uint64_t flag)
 344 {
 345         switch (flag) {
 346         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 347                 return "SYMMETRIC_CRYPTO";
 348         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 349                 return "ASYMMETRIC_CRYPTO";
 350         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 351                 return "SYM_OPERATION_CHAINING";
 352         case RTE_CRYPTODEV_FF_CPU_SSE:
 353                 return "CPU_SSE";
 354         case RTE_CRYPTODEV_FF_CPU_AVX:
 355                 return "CPU_AVX";
 356         case RTE_CRYPTODEV_FF_CPU_AVX2:
 357                 return "CPU_AVX2";
 358         case RTE_CRYPTODEV_FF_CPU_AVX512:
 359                 return "CPU_AVX512";
 360         case RTE_CRYPTODEV_FF_CPU_AESNI:
 361                 return "CPU_AESNI";
 362         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 363                 return "HW_ACCELERATED";
 364         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 365                 return "MBUF_SCATTER_GATHER";
 366         case RTE_CRYPTODEV_FF_CPU_NEON:
 367                 return "CPU_NEON";
 368         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 369                 return "CPU_ARM_CE";
 370         case RTE_CRYPTODEV_FF_SECURITY:
 371                 return "SECURITY_PROTOCOL";
 372         default:
 373                 return NULL;
 374         }
 375 }
 376
 377 struct rte_cryptodev *
 378 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 379 {
 380         return &rte_cryptodev_globals->devs[dev_id];
 381 }
 382
 383 struct rte_cryptodev *
 384 rte_cryptodev_pmd_get_named_dev(const char *name)
 385 {
 386         struct rte_cryptodev *dev;
 387         unsigned int i;
 388
 389         if (name == NULL)
 390                 return NULL;
 391
 392         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 393                 dev = &rte_cryptodev_globals->devs[i];
 394
 395                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 396                                 (strcmp(dev->data->name, name) == 0))
 397                         return dev;
 398         }
 399
 400         return NULL;
 401 }
 402
 403 unsigned int
 404 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 405 {
 406         struct rte_cryptodev *dev = NULL;
 407
 408         if (dev_id >= rte_cryptodev_globals->nb_devs)
 409                 return 0;
 410
 411         dev = rte_cryptodev_pmd_get_dev(dev_id);
 412         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 413                 return 0;
 414         else
 415                 return 1;
 416 }
 417
 418
 419 int
 420 rte_cryptodev_get_dev_id(const char *name)
 421 {
 422         unsigned i;
 423
 424         if (name == NULL)
 425                 return -1;
 426
 427         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 428                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 429                                 == 0) &&
 430                                 (rte_cryptodev_globals->devs[i].attached ==
 431                                                 RTE_CRYPTODEV_ATTACHED))
 432                         return i;
 433
 434         return -1;
 435 }
 436
 437 uint8_t
 438 rte_cryptodev_count(void)
 439 {
 440         return rte_cryptodev_globals->nb_devs;
 441 }
 442
 443 uint8_t
 444 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 445 {
 446         uint8_t i, dev_count = 0;
 447
 448         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 449                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 450                         rte_cryptodev_globals->devs[i].attached ==
 451                                         RTE_CRYPTODEV_ATTACHED)
 452                         dev_count++;
 453
 454         return dev_count;
 455 }
 456
 457 uint8_t
 458 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 459         uint8_t nb_devices)
 460 {
 461         uint8_t i, count = 0;
 462         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 463         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 464
 465         for (i = 0; i < max_devs && count < nb_devices; i++) {
 466
 467                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 468                         int cmp;
 469
 470                         cmp = strncmp(devs[i].device->driver->name,
 471                                         driver_name,
 472                                         strlen(driver_name));
 473
 474                         if (cmp == 0)
 475                                 devices[count++] = devs[i].data->dev_id;
 476                 }
 477         }
 478
 479         return count;
 480 }
 481
 482 void *
 483 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 484 {
 485         if (rte_crypto_devices[dev_id].feature_flags &
 486                         RTE_CRYPTODEV_FF_SECURITY)
 487                 return rte_crypto_devices[dev_id].security_ctx;
 488
 489         return NULL;
 490 }
 491
 492 int
 493 rte_cryptodev_socket_id(uint8_t dev_id)
 494 {
 495         struct rte_cryptodev *dev;
 496
 497         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 498                 return -1;
 499
 500         dev = rte_cryptodev_pmd_get_dev(dev_id);
 501
 502         return dev->data->socket_id;
 503 }
 504
 505 static inline int
 506 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 507                 int socket_id)
 508 {
 509         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 510         const struct rte_memzone *mz;
 511         int n;
 512
 513         /* generate memzone name */
 514         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 515         if (n >= (int)sizeof(mz_name))
 516                 return -EINVAL;
 517
 518         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 519                 mz = rte_memzone_reserve(mz_name,
 520                                 sizeof(struct rte_cryptodev_data),
 521                                 socket_id, 0);
 522         } else
 523                 mz = rte_memzone_lookup(mz_name);
 524
 525         if (mz == NULL)
 526                 return -ENOMEM;
 527
 528         *data = mz->addr;
 529         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 530                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 531
 532         return 0;
 533 }
 534
 535 static uint8_t
 536 rte_cryptodev_find_free_device_index(void)
 537 {
 538         uint8_t dev_id;
 539
 540         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 541                 if (rte_crypto_devices[dev_id].attached ==
 542                                 RTE_CRYPTODEV_DETACHED)
 543                         return dev_id;
 544         }
 545         return RTE_CRYPTO_MAX_DEVS;
 546 }
 547
 548 struct rte_cryptodev *
 549 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 550 {
 551         struct rte_cryptodev *cryptodev;
 552         uint8_t dev_id;
 553
 554         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 555                 CDEV_LOG_ERR("Crypto device with name %s already "
 556                                 "allocated!", name);
 557                 return NULL;
 558         }
 559
 560         dev_id = rte_cryptodev_find_free_device_index();
 561         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 562                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 563                 return NULL;
 564         }
 565
 566         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 567
 568         if (cryptodev->data == NULL) {
 569                 struct rte_cryptodev_data *cryptodev_data =
 570                                 cryptodev_globals.data[dev_id];
 571
 572                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 573                                 socket_id);
 574
 575                 if (retval < 0 || cryptodev_data == NULL)
 576                         return NULL;
 577
 578                 cryptodev->data = cryptodev_data;
 579
 580                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 581                                 "%s", name);
 582
 583                 cryptodev->data->dev_id = dev_id;
 584                 cryptodev->data->socket_id = socket_id;
 585                 cryptodev->data->dev_started = 0;
 586
 587                 /* init user callbacks */
 588                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 589
 590                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 591
 592                 cryptodev_globals.nb_devs++;
 593         }
 594
 595         return cryptodev;
 596 }
 597
 598 int
 599 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 600 {
 601         int ret;
 602
 603         if (cryptodev == NULL)
 604                 return -EINVAL;
 605
 606         /* Close device only if device operations have been set */
 607         if (cryptodev->dev_ops) {
 608                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 609                 if (ret < 0)
 610                         return ret;
 611         }
 612
 613         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 614         cryptodev_globals.nb_devs--;
 615         return 0;
 616 }
 617
 618 uint16_t
 619 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 620 {
 621         struct rte_cryptodev *dev;
 622
 623         dev = &rte_crypto_devices[dev_id];
 624         return dev->data->nb_queue_pairs;
 625 }
 626
 627 static int
 628 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 629                 int socket_id)
 630 {
 631         struct rte_cryptodev_info dev_info;
 632         void **qp;
 633         unsigned i;
 634
 635         if ((dev == NULL) || (nb_qpairs < 1)) {
 636                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 637                                                         dev, nb_qpairs);
 638                 return -EINVAL;
 639         }
 640
 641         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 642                         nb_qpairs, dev->data->dev_id);
 643
 644         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 645
 646         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 647         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 648
 649         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 650                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 651                                 nb_qpairs, dev->data->dev_id);
 652             return -EINVAL;
 653         }
 654
 655         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 656                 dev->data->queue_pairs = rte_zmalloc_socket(
 657                                 "cryptodev->queue_pairs",
 658                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 659                                 RTE_CACHE_LINE_SIZE, socket_id);
 660
 661                 if (dev->data->queue_pairs == NULL) {
 662                         dev->data->nb_queue_pairs = 0;
 663                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 664                                                         "nb_queues %u",
 665                                                         nb_qpairs);
 666                         return -(ENOMEM);
 667                 }
 668         } else { /* re-configure */
 669                 int ret;
 670                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 671
 672                 qp = dev->data->queue_pairs;
 673
 674                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 675                                 -ENOTSUP);
 676
 677                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 678                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 679                         if (ret < 0)
 680                                 return ret;
 681                 }
 682
 683                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 684                                 RTE_CACHE_LINE_SIZE);
 685                 if (qp == NULL) {
 686                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 687                                                 " nb_queues %u", nb_qpairs);
 688                         return -(ENOMEM);
 689                 }
 690
 691                 if (nb_qpairs > old_nb_queues) {
 692                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 693
 694                         memset(qp + old_nb_queues, 0,
 695                                 sizeof(qp[0]) * new_qs);
 696                 }
 697
 698                 dev->data->queue_pairs = qp;
 699
 700         }
 701         dev->data->nb_queue_pairs = nb_qpairs;
 702         return 0;
 703 }
 704
 705 int
 706 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 707 {
 708         struct rte_cryptodev *dev;
 709
 710         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 711                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 712                 return -EINVAL;
 713         }
 714
 715         dev = &rte_crypto_devices[dev_id];
 716         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 717                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 718                 return -EINVAL;
 719         }
 720
 721         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 722
 723         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 724
 725 }
 726
 727 int
 728 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 729 {
 730         struct rte_cryptodev *dev;
 731
 732         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 733                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 734                 return -EINVAL;
 735         }
 736
 737         dev = &rte_crypto_devices[dev_id];
 738         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 739                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 740                 return -EINVAL;
 741         }
 742
 743         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 744
 745         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 746
 747 }
 748
 749 int
 750 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 751 {
 752         struct rte_cryptodev *dev;
 753         int diag;
 754
 755         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 756                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 757                 return -EINVAL;
 758         }
 759
 760         dev = &rte_crypto_devices[dev_id];
 761
 762         if (dev->data->dev_started) {
 763                 CDEV_LOG_ERR(
 764                     "device %d must be stopped to allow configuration", dev_id);
 765                 return -EBUSY;
 766         }
 767
 768         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 769
 770         /* Setup new number of queue pairs and reconfigure device. */
 771         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 772                         config->socket_id);
 773         if (diag != 0) {
 774                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 775                                 dev_id, diag);
 776                 return diag;
 777         }
 778
 779         return (*dev->dev_ops->dev_configure)(dev, config);
 780 }
 781
 782
 783 int
 784 rte_cryptodev_start(uint8_t dev_id)
 785 {
 786         struct rte_cryptodev *dev;
 787         int diag;
 788
 789         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 790
 791         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 792                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 793                 return -EINVAL;
 794         }
 795
 796         dev = &rte_crypto_devices[dev_id];
 797
 798         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 799
 800         if (dev->data->dev_started != 0) {
 801                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 802                         dev_id);
 803                 return 0;
 804         }
 805
 806         diag = (*dev->dev_ops->dev_start)(dev);
 807         if (diag == 0)
 808                 dev->data->dev_started = 1;
 809         else
 810                 return diag;
 811
 812         return 0;
 813 }
 814
 815 void
 816 rte_cryptodev_stop(uint8_t dev_id)
 817 {
 818         struct rte_cryptodev *dev;
 819
 820         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 821                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 822                 return;
 823         }
 824
 825         dev = &rte_crypto_devices[dev_id];
 826
 827         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 828
 829         if (dev->data->dev_started == 0) {
 830                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 831                         dev_id);
 832                 return;
 833         }
 834
 835         (*dev->dev_ops->dev_stop)(dev);
 836         dev->data->dev_started = 0;
 837 }
 838
 839 int
 840 rte_cryptodev_close(uint8_t dev_id)
 841 {
 842         struct rte_cryptodev *dev;
 843         int retval;
 844
 845         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 846                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 847                 return -1;
 848         }
 849
 850         dev = &rte_crypto_devices[dev_id];
 851
 852         /* Device must be stopped before it can be closed */
 853         if (dev->data->dev_started == 1) {
 854                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 855                                 dev_id);
 856                 return -EBUSY;
 857         }
 858
 859         /* We can't close the device if there are outstanding sessions in use */
 860         if (dev->data->session_pool != NULL) {
 861                 if (!rte_mempool_full(dev->data->session_pool)) {
 862                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 863                                         "has sessions still in use, free "
 864                                         "all sessions before calling close",
 865                                         (unsigned)dev_id);
 866                         return -EBUSY;
 867                 }
 868         }
 869
 870         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 871         retval = (*dev->dev_ops->dev_close)(dev);
 872
 873         if (retval < 0)
 874                 return retval;
 875
 876         return 0;
 877 }
 878
 879 int
 880 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 881                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
 882                 struct rte_mempool *session_pool)
 883
 884 {
 885         struct rte_cryptodev *dev;
 886
 887         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 888                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 889                 return -EINVAL;
 890         }
 891
 892         dev = &rte_crypto_devices[dev_id];
 893         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 894                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 895                 return -EINVAL;
 896         }
 897
 898         if (dev->data->dev_started) {
 899                 CDEV_LOG_ERR(
 900                     "device %d must be stopped to allow configuration", dev_id);
 901                 return -EBUSY;
 902         }
 903
 904         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 905
 906         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 907                         socket_id, session_pool);
 908 }
 909
 910
 911 int
 912 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 913 {
 914         struct rte_cryptodev *dev;
 915
 916         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 917                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 918                 return -ENODEV;
 919         }
 920
 921         if (stats == NULL) {
 922                 CDEV_LOG_ERR("Invalid stats ptr");
 923                 return -EINVAL;
 924         }
 925
 926         dev = &rte_crypto_devices[dev_id];
 927         memset(stats, 0, sizeof(*stats));
 928
 929         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 930         (*dev->dev_ops->stats_get)(dev, stats);
 931         return 0;
 932 }
 933
 934 void
 935 rte_cryptodev_stats_reset(uint8_t dev_id)
 936 {
 937         struct rte_cryptodev *dev;
 938
 939         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 940                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 941                 return;
 942         }
 943
 944         dev = &rte_crypto_devices[dev_id];
 945
 946         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 947         (*dev->dev_ops->stats_reset)(dev);
 948 }
 949
 950
 951 void
 952 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 953 {
 954         struct rte_cryptodev *dev;
 955
 956         if (dev_id >= cryptodev_globals.nb_devs) {
 957                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 958                 return;
 959         }
 960
 961         dev = &rte_crypto_devices[dev_id];
 962
 963         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 964
 965         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 966         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 967
 968         dev_info->driver_name = dev->device->driver->name;
 969 }
 970
 971
 972 int
 973 rte_cryptodev_callback_register(uint8_t dev_id,
 974                         enum rte_cryptodev_event_type event,
 975                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 976 {
 977         struct rte_cryptodev *dev;
 978         struct rte_cryptodev_callback *user_cb;
 979
 980         if (!cb_fn)
 981                 return -EINVAL;
 982
 983         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 984                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 985                 return -EINVAL;
 986         }
 987
 988         dev = &rte_crypto_devices[dev_id];
 989         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 990
 991         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 992                 if (user_cb->cb_fn == cb_fn &&
 993                         user_cb->cb_arg == cb_arg &&
 994                         user_cb->event == event) {
 995                         break;
 996                 }
 997         }
 998
 999         /* create a new callback. */
1000         if (user_cb == NULL) {
1001                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1002                                 sizeof(struct rte_cryptodev_callback), 0);
1003                 if (user_cb != NULL) {
1004                         user_cb->cb_fn = cb_fn;
1005                         user_cb->cb_arg = cb_arg;
1006                         user_cb->event = event;
1007                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1008                 }
1009         }
1010
1011         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1012         return (user_cb == NULL) ? -ENOMEM : 0;
1013 }
1014
1015 int
1016 rte_cryptodev_callback_unregister(uint8_t dev_id,
1017                         enum rte_cryptodev_event_type event,
1018                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1019 {
1020         int ret;
1021         struct rte_cryptodev *dev;
1022         struct rte_cryptodev_callback *cb, *next;
1023
1024         if (!cb_fn)
1025                 return -EINVAL;
1026
1027         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1028                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1029                 return -EINVAL;
1030         }
1031
1032         dev = &rte_crypto_devices[dev_id];
1033         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1034
1035         ret = 0;
1036         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1037
1038                 next = TAILQ_NEXT(cb, next);
1039
1040                 if (cb->cb_fn != cb_fn || cb->event != event ||
1041                                 (cb->cb_arg != (void *)-1 &&
1042                                 cb->cb_arg != cb_arg))
1043                         continue;
1044
1045                 /*
1046                  * if this callback is not executing right now,
1047                  * then remove it.
1048                  */
1049                 if (cb->active == 0) {
1050                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1051                         rte_free(cb);
1052                 } else {
1053                         ret = -EAGAIN;
1054                 }
1055         }
1056
1057         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1058         return ret;
1059 }
1060
1061 void
1062 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1063         enum rte_cryptodev_event_type event)
1064 {
1065         struct rte_cryptodev_callback *cb_lst;
1066         struct rte_cryptodev_callback dev_cb;
1067
1068         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1069         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1070                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1071                         continue;
1072                 dev_cb = *cb_lst;
1073                 cb_lst->active = 1;
1074                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1075                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1076                                                 dev_cb.cb_arg);
1077                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1078                 cb_lst->active = 0;
1079         }
1080         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1081 }
1082
1083
1084 int
1085 rte_cryptodev_sym_session_init(uint8_t dev_id,
1086                 struct rte_cryptodev_sym_session *sess,
1087                 struct rte_crypto_sym_xform *xforms,
1088                 struct rte_mempool *mp)
1089 {
1090         struct rte_cryptodev *dev;
1091         uint8_t index;
1092         int ret;
1093
1094         dev = rte_cryptodev_pmd_get_dev(dev_id);
1095
1096         if (sess == NULL || xforms == NULL || dev == NULL)
1097                 return -EINVAL;
1098
1099         index = dev->driver_id;
1100
1101         if (sess->sess_private_data[index] == NULL) {
1102                 ret = dev->dev_ops->session_configure(dev, xforms, sess, mp);
1103                 if (ret < 0) {
1104                         CDEV_LOG_ERR(
1105                                 "dev_id %d failed to configure session details",
1106                                 dev_id);
1107                         return ret;
1108                 }
1109         }
1110
1111         return 0;
1112 }
1113
1114 struct rte_cryptodev_sym_session *
1115 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1116 {
1117         struct rte_cryptodev_sym_session *sess;
1118
1119         /* Allocate a session structure from the session pool */
1120         if (rte_mempool_get(mp, (void **)&sess)) {
1121                 CDEV_LOG_ERR("couldn't get object from session mempool");
1122                 return NULL;
1123         }
1124
1125         /* Clear device session pointer.
1126          * Include the flag indicating presence of private data
1127          */
1128         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1129
1130         return sess;
1131 }
1132
1133 int
1134 rte_cryptodev_queue_pair_attach_sym_session(uint8_t dev_id, uint16_t qp_id,
1135                 struct rte_cryptodev_sym_session *sess)
1136 {
1137         struct rte_cryptodev *dev;
1138
1139         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1140                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1141                 return -EINVAL;
1142         }
1143
1144         dev = &rte_crypto_devices[dev_id];
1145
1146         /* The API is optional, not returning error if driver do not suuport */
1147         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1148
1149         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1150
1151         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess_priv)) {
1152                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1153                                 dev_id, qp_id);
1154                 return -EPERM;
1155         }
1156
1157         return 0;
1158 }
1159
1160 int
1161 rte_cryptodev_queue_pair_detach_sym_session(uint8_t dev_id, uint16_t qp_id,
1162                 struct rte_cryptodev_sym_session *sess)
1163 {
1164         struct rte_cryptodev *dev;
1165
1166         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1167                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1168                 return -EINVAL;
1169         }
1170
1171         dev = &rte_crypto_devices[dev_id];
1172
1173         /* The API is optional, not returning error if driver do not suuport */
1174         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1175
1176         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1177
1178         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess_priv)) {
1179                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1180                                 dev_id, qp_id);
1181                 return -EPERM;
1182         }
1183
1184         return 0;
1185 }
1186
1187 int
1188 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1189                 struct rte_cryptodev_sym_session *sess)
1190 {
1191         struct rte_cryptodev *dev;
1192
1193         dev = rte_cryptodev_pmd_get_dev(dev_id);
1194
1195         if (dev == NULL || sess == NULL)
1196                 return -EINVAL;
1197
1198         dev->dev_ops->session_clear(dev, sess);
1199
1200         return 0;
1201 }
1202
1203 int
1204 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1205 {
1206         uint8_t i;
1207         void *sess_priv;
1208         struct rte_mempool *sess_mp;
1209
1210         if (sess == NULL)
1211                 return -EINVAL;
1212
1213         /* Check that all device private data has been freed */
1214         for (i = 0; i < nb_drivers; i++) {
1215                 sess_priv = get_session_private_data(sess, i);
1216                 if (sess_priv != NULL)
1217                         return -EBUSY;
1218         }
1219
1220         /* Return session to mempool */
1221         sess_mp = rte_mempool_from_obj(sess);
1222         rte_mempool_put(sess_mp, sess);
1223
1224         return 0;
1225 }
1226
1227 unsigned int
1228 rte_cryptodev_get_header_session_size(void)
1229 {
1230         return rte_cryptodev_sym_get_header_session_size();
1231 }
1232
1233 unsigned int
1234 rte_cryptodev_sym_get_header_session_size(void)
1235 {
1236         /*
1237          * Header contains pointers to the private data
1238          * of all registered drivers, and a flag which
1239          * indicates presence of private data
1240          */
1241         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1242 }
1243
1244 unsigned int
1245 rte_cryptodev_get_private_session_size(uint8_t dev_id)
1246 {
1247         return rte_cryptodev_sym_get_private_session_size(dev_id);
1248 }
1249
1250 unsigned int
1251 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
1252 {
1253         struct rte_cryptodev *dev;
1254         unsigned int header_size = sizeof(void *) * nb_drivers;
1255         unsigned int priv_sess_size;
1256
1257         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1258                 return 0;
1259
1260         dev = rte_cryptodev_pmd_get_dev(dev_id);
1261
1262         if (*dev->dev_ops->session_get_size == NULL)
1263                 return 0;
1264
1265         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1266
1267         /*
1268          * If size is less than session header size,
1269          * return the latter, as this guarantees that
1270          * sessionless operations will work
1271          */
1272         if (priv_sess_size < header_size)
1273                 return header_size;
1274
1275         return priv_sess_size;
1276
1277 }
1278
1279 int __rte_experimental
1280 rte_cryptodev_sym_session_set_private_data(
1281                                         struct rte_cryptodev_sym_session *sess,
1282                                         void *data,
1283                                         uint16_t size)
1284 {
1285         uint16_t off_set = sizeof(void *) * nb_drivers;
1286         uint8_t *private_data_present = (uint8_t *)sess + off_set;
1287
1288         if (sess == NULL)
1289                 return -EINVAL;
1290
1291         *private_data_present = 1;
1292         off_set += sizeof(uint8_t);
1293         rte_memcpy((uint8_t *)sess + off_set, data, size);
1294         return 0;
1295 }
1296
1297 void * __rte_experimental
1298 rte_cryptodev_sym_session_get_private_data(
1299                                         struct rte_cryptodev_sym_session *sess)
1300 {
1301         uint16_t off_set = sizeof(void *) * nb_drivers;
1302         uint8_t *private_data_present = (uint8_t *)sess + off_set;
1303
1304         if (sess == NULL || !*private_data_present)
1305                 return NULL;
1306
1307         off_set += sizeof(uint8_t);
1308         return (uint8_t *)sess + off_set;
1309 }
1310
1311 /** Initialise rte_crypto_op mempool element */
1312 static void
1313 rte_crypto_op_init(struct rte_mempool *mempool,
1314                 void *opaque_arg,
1315                 void *_op_data,
1316                 __rte_unused unsigned i)
1317 {
1318         struct rte_crypto_op *op = _op_data;
1319         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1320
1321         memset(_op_data, 0, mempool->elt_size);
1322
1323         __rte_crypto_op_reset(op, type);
1324
1325         op->phys_addr = rte_mem_virt2iova(_op_data);
1326         op->mempool = mempool;
1327 }
1328
1329
1330 struct rte_mempool *
1331 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1332                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1333                 int socket_id)
1334 {
1335         struct rte_crypto_op_pool_private *priv;
1336
1337         unsigned elt_size = sizeof(struct rte_crypto_op) +
1338                         sizeof(struct rte_crypto_sym_op) +
1339                         priv_size;
1340
1341         /* lookup mempool in case already allocated */
1342         struct rte_mempool *mp = rte_mempool_lookup(name);
1343
1344         if (mp != NULL) {
1345                 priv = (struct rte_crypto_op_pool_private *)
1346                                 rte_mempool_get_priv(mp);
1347
1348                 if (mp->elt_size != elt_size ||
1349                                 mp->cache_size < cache_size ||
1350                                 mp->size < nb_elts ||
1351                                 priv->priv_size <  priv_size) {
1352                         mp = NULL;
1353                         CDEV_LOG_ERR("Mempool %s already exists but with "
1354                                         "incompatible parameters", name);
1355                         return NULL;
1356                 }
1357                 return mp;
1358         }
1359
1360         mp = rte_mempool_create(
1361                         name,
1362                         nb_elts,
1363                         elt_size,
1364                         cache_size,
1365                         sizeof(struct rte_crypto_op_pool_private),
1366                         NULL,
1367                         NULL,
1368                         rte_crypto_op_init,
1369                         &type,
1370                         socket_id,
1371                         0);
1372
1373         if (mp == NULL) {
1374                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1375                 return NULL;
1376         }
1377
1378         priv = (struct rte_crypto_op_pool_private *)
1379                         rte_mempool_get_priv(mp);
1380
1381         priv->priv_size = priv_size;
1382         priv->type = type;
1383
1384         return mp;
1385 }
1386
1387 int
1388 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1389 {
1390         struct rte_cryptodev *dev = NULL;
1391         uint32_t i = 0;
1392
1393         if (name == NULL)
1394                 return -EINVAL;
1395
1396         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1397                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1398                                 "%s_%u", dev_name_prefix, i);
1399
1400                 if (ret < 0)
1401                         return ret;
1402
1403                 dev = rte_cryptodev_pmd_get_named_dev(name);
1404                 if (!dev)
1405                         return 0;
1406         }
1407
1408         return -1;
1409 }
1410
1411 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1412
1413 static struct cryptodev_driver_list cryptodev_driver_list =
1414         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1415
1416 int
1417 rte_cryptodev_driver_id_get(const char *name)
1418 {
1419         struct cryptodev_driver *driver;
1420         const char *driver_name;
1421
1422         if (name == NULL) {
1423                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1424                 return -1;
1425         }
1426
1427         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1428                 driver_name = driver->driver->name;
1429                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1430                         return driver->id;
1431         }
1432         return -1;
1433 }
1434
1435 const char *
1436 rte_cryptodev_name_get(uint8_t dev_id)
1437 {
1438         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1439
1440         if (dev == NULL)
1441                 return NULL;
1442
1443         return dev->data->name;
1444 }
1445
1446 const char *
1447 rte_cryptodev_driver_name_get(uint8_t driver_id)
1448 {
1449         struct cryptodev_driver *driver;
1450
1451         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1452                 if (driver->id == driver_id)
1453                         return driver->driver->name;
1454         return NULL;
1455 }
1456
1457 uint8_t
1458 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1459                 const struct rte_driver *drv)
1460 {
1461         crypto_drv->driver = drv;
1462         crypto_drv->id = nb_drivers;
1463
1464         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1465
1466         return nb_drivers++;
1467 }