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 /**
 170  * Asymmetric crypto transform operation strings identifiers.
 171  */
 172 const char *rte_crypto_asym_xform_strings[] = {
 173         [RTE_CRYPTO_ASYM_XFORM_NONE]    = "none",
 174         [RTE_CRYPTO_ASYM_XFORM_RSA]     = "rsa",
 175         [RTE_CRYPTO_ASYM_XFORM_MODEX]   = "modexp",
 176         [RTE_CRYPTO_ASYM_XFORM_MODINV]  = "modinv",
 177         [RTE_CRYPTO_ASYM_XFORM_DH]      = "dh",
 178         [RTE_CRYPTO_ASYM_XFORM_DSA]     = "dsa",
 179 };
 180
 181 /**
 182  * Asymmetric crypto operation strings identifiers.
 183  */
 184 const char *rte_crypto_asym_op_strings[] = {
 185         [RTE_CRYPTO_ASYM_OP_ENCRYPT]    = "encrypt",
 186         [RTE_CRYPTO_ASYM_OP_DECRYPT]    = "decrypt",
 187         [RTE_CRYPTO_ASYM_OP_SIGN]       = "sign",
 188         [RTE_CRYPTO_ASYM_OP_VERIFY]     = "verify",
 189         [RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE]       = "priv_key_generate",
 190         [RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE] = "pub_key_generate",
 191         [RTE_CRYPTO_ASYM_OP_SHARED_SECRET_COMPUTE] = "sharedsecret_compute",
 192 };
 193
 194 int
 195 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 196                 const char *algo_string)
 197 {
 198         unsigned int i;
 199
 200         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 201                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 202                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 203                         return 0;
 204                 }
 205         }
 206
 207         /* Invalid string */
 208         return -1;
 209 }
 210
 211 int
 212 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 213                 const char *algo_string)
 214 {
 215         unsigned int i;
 216
 217         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 218                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 219                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 220                         return 0;
 221                 }
 222         }
 223
 224         /* Invalid string */
 225         return -1;
 226 }
 227
 228 int
 229 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
 230                 const char *algo_string)
 231 {
 232         unsigned int i;
 233
 234         for (i = 1; i < RTE_DIM(rte_crypto_aead_algorithm_strings); i++) {
 235                 if (strcmp(algo_string, rte_crypto_aead_algorithm_strings[i]) == 0) {
 236                         *algo_enum = (enum rte_crypto_aead_algorithm) i;
 237                         return 0;
 238                 }
 239         }
 240
 241         /* Invalid string */
 242         return -1;
 243 }
 244
 245 /**
 246  * The crypto auth operation strings identifiers.
 247  * It could be used in application command line.
 248  */
 249 const char *
 250 rte_crypto_auth_operation_strings[] = {
 251                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 252                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 253 };
 254
 255 const struct rte_cryptodev_symmetric_capability *
 256 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 257                 const struct rte_cryptodev_sym_capability_idx *idx)
 258 {
 259         const struct rte_cryptodev_capabilities *capability;
 260         struct rte_cryptodev_info dev_info;
 261         int i = 0;
 262
 263         rte_cryptodev_info_get(dev_id, &dev_info);
 264
 265         while ((capability = &dev_info.capabilities[i++])->op !=
 266                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 267                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 268                         continue;
 269
 270                 if (capability->sym.xform_type != idx->type)
 271                         continue;
 272
 273                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 274                         capability->sym.auth.algo == idx->algo.auth)
 275                         return &capability->sym;
 276
 277                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 278                         capability->sym.cipher.algo == idx->algo.cipher)
 279                         return &capability->sym;
 280
 281                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AEAD &&
 282                                 capability->sym.aead.algo == idx->algo.aead)
 283                         return &capability->sym;
 284         }
 285
 286         return NULL;
 287
 288 }
 289
 290 static int
 291 param_range_check(uint16_t size, const struct rte_crypto_param_range *range)
 292 {
 293         unsigned int next_size;
 294
 295         /* Check lower/upper bounds */
 296         if (size < range->min)
 297                 return -1;
 298
 299         if (size > range->max)
 300                 return -1;
 301
 302         /* If range is actually only one value, size is correct */
 303         if (range->increment == 0)
 304                 return 0;
 305
 306         /* Check if value is one of the supported sizes */
 307         for (next_size = range->min; next_size <= range->max;
 308                         next_size += range->increment)
 309                 if (size == next_size)
 310                         return 0;
 311
 312         return -1;
 313 }
 314
 315 int
 316 rte_cryptodev_sym_capability_check_cipher(
 317                 const struct rte_cryptodev_symmetric_capability *capability,
 318                 uint16_t key_size, uint16_t iv_size)
 319 {
 320         if (param_range_check(key_size, &capability->cipher.key_size) != 0)
 321                 return -1;
 322
 323         if (param_range_check(iv_size, &capability->cipher.iv_size) != 0)
 324                 return -1;
 325
 326         return 0;
 327 }
 328
 329 int
 330 rte_cryptodev_sym_capability_check_auth(
 331                 const struct rte_cryptodev_symmetric_capability *capability,
 332                 uint16_t key_size, uint16_t digest_size, uint16_t iv_size)
 333 {
 334         if (param_range_check(key_size, &capability->auth.key_size) != 0)
 335                 return -1;
 336
 337         if (param_range_check(digest_size, &capability->auth.digest_size) != 0)
 338                 return -1;
 339
 340         if (param_range_check(iv_size, &capability->auth.iv_size) != 0)
 341                 return -1;
 342
 343         return 0;
 344 }
 345
 346 int
 347 rte_cryptodev_sym_capability_check_aead(
 348                 const struct rte_cryptodev_symmetric_capability *capability,
 349                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 350                 uint16_t iv_size)
 351 {
 352         if (param_range_check(key_size, &capability->aead.key_size) != 0)
 353                 return -1;
 354
 355         if (param_range_check(digest_size, &capability->aead.digest_size) != 0)
 356                 return -1;
 357
 358         if (param_range_check(aad_size, &capability->aead.aad_size) != 0)
 359                 return -1;
 360
 361         if (param_range_check(iv_size, &capability->aead.iv_size) != 0)
 362                 return -1;
 363
 364         return 0;
 365 }
 366
 367 const char *
 368 rte_cryptodev_get_feature_name(uint64_t flag)
 369 {
 370         switch (flag) {
 371         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 372                 return "SYMMETRIC_CRYPTO";
 373         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 374                 return "ASYMMETRIC_CRYPTO";
 375         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 376                 return "SYM_OPERATION_CHAINING";
 377         case RTE_CRYPTODEV_FF_CPU_SSE:
 378                 return "CPU_SSE";
 379         case RTE_CRYPTODEV_FF_CPU_AVX:
 380                 return "CPU_AVX";
 381         case RTE_CRYPTODEV_FF_CPU_AVX2:
 382                 return "CPU_AVX2";
 383         case RTE_CRYPTODEV_FF_CPU_AVX512:
 384                 return "CPU_AVX512";
 385         case RTE_CRYPTODEV_FF_CPU_AESNI:
 386                 return "CPU_AESNI";
 387         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 388                 return "HW_ACCELERATED";
 389         case RTE_CRYPTODEV_FF_IN_PLACE_SGL:
 390                 return "IN_PLACE_SGL";
 391         case RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT:
 392                 return "OOP_SGL_IN_SGL_OUT";
 393         case RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT:
 394                 return "OOP_SGL_IN_LB_OUT";
 395         case RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT:
 396                 return "OOP_LB_IN_SGL_OUT";
 397         case RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT:
 398                 return "OOP_LB_IN_LB_OUT";
 399         case RTE_CRYPTODEV_FF_CPU_NEON:
 400                 return "CPU_NEON";
 401         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 402                 return "CPU_ARM_CE";
 403         case RTE_CRYPTODEV_FF_SECURITY:
 404                 return "SECURITY_PROTOCOL";
 405         default:
 406                 return NULL;
 407         }
 408 }
 409
 410 struct rte_cryptodev *
 411 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 412 {
 413         return &rte_cryptodev_globals->devs[dev_id];
 414 }
 415
 416 struct rte_cryptodev *
 417 rte_cryptodev_pmd_get_named_dev(const char *name)
 418 {
 419         struct rte_cryptodev *dev;
 420         unsigned int i;
 421
 422         if (name == NULL)
 423                 return NULL;
 424
 425         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 426                 dev = &rte_cryptodev_globals->devs[i];
 427
 428                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 429                                 (strcmp(dev->data->name, name) == 0))
 430                         return dev;
 431         }
 432
 433         return NULL;
 434 }
 435
 436 unsigned int
 437 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 438 {
 439         struct rte_cryptodev *dev = NULL;
 440
 441         if (dev_id >= rte_cryptodev_globals->nb_devs)
 442                 return 0;
 443
 444         dev = rte_cryptodev_pmd_get_dev(dev_id);
 445         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 446                 return 0;
 447         else
 448                 return 1;
 449 }
 450
 451
 452 int
 453 rte_cryptodev_get_dev_id(const char *name)
 454 {
 455         unsigned i;
 456
 457         if (name == NULL)
 458                 return -1;
 459
 460         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 461                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 462                                 == 0) &&
 463                                 (rte_cryptodev_globals->devs[i].attached ==
 464                                                 RTE_CRYPTODEV_ATTACHED))
 465                         return i;
 466
 467         return -1;
 468 }
 469
 470 uint8_t
 471 rte_cryptodev_count(void)
 472 {
 473         return rte_cryptodev_globals->nb_devs;
 474 }
 475
 476 uint8_t
 477 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 478 {
 479         uint8_t i, dev_count = 0;
 480
 481         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 482                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 483                         rte_cryptodev_globals->devs[i].attached ==
 484                                         RTE_CRYPTODEV_ATTACHED)
 485                         dev_count++;
 486
 487         return dev_count;
 488 }
 489
 490 uint8_t
 491 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 492         uint8_t nb_devices)
 493 {
 494         uint8_t i, count = 0;
 495         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 496         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 497
 498         for (i = 0; i < max_devs && count < nb_devices; i++) {
 499
 500                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 501                         int cmp;
 502
 503                         cmp = strncmp(devs[i].device->driver->name,
 504                                         driver_name,
 505                                         strlen(driver_name));
 506
 507                         if (cmp == 0)
 508                                 devices[count++] = devs[i].data->dev_id;
 509                 }
 510         }
 511
 512         return count;
 513 }
 514
 515 void *
 516 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 517 {
 518         if (rte_crypto_devices[dev_id].feature_flags &
 519                         RTE_CRYPTODEV_FF_SECURITY)
 520                 return rte_crypto_devices[dev_id].security_ctx;
 521
 522         return NULL;
 523 }
 524
 525 int
 526 rte_cryptodev_socket_id(uint8_t dev_id)
 527 {
 528         struct rte_cryptodev *dev;
 529
 530         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 531                 return -1;
 532
 533         dev = rte_cryptodev_pmd_get_dev(dev_id);
 534
 535         return dev->data->socket_id;
 536 }
 537
 538 static inline int
 539 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 540                 int socket_id)
 541 {
 542         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 543         const struct rte_memzone *mz;
 544         int n;
 545
 546         /* generate memzone name */
 547         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 548         if (n >= (int)sizeof(mz_name))
 549                 return -EINVAL;
 550
 551         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 552                 mz = rte_memzone_reserve(mz_name,
 553                                 sizeof(struct rte_cryptodev_data),
 554                                 socket_id, 0);
 555         } else
 556                 mz = rte_memzone_lookup(mz_name);
 557
 558         if (mz == NULL)
 559                 return -ENOMEM;
 560
 561         *data = mz->addr;
 562         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 563                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 564
 565         return 0;
 566 }
 567
 568 static uint8_t
 569 rte_cryptodev_find_free_device_index(void)
 570 {
 571         uint8_t dev_id;
 572
 573         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 574                 if (rte_crypto_devices[dev_id].attached ==
 575                                 RTE_CRYPTODEV_DETACHED)
 576                         return dev_id;
 577         }
 578         return RTE_CRYPTO_MAX_DEVS;
 579 }
 580
 581 struct rte_cryptodev *
 582 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 583 {
 584         struct rte_cryptodev *cryptodev;
 585         uint8_t dev_id;
 586
 587         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 588                 CDEV_LOG_ERR("Crypto device with name %s already "
 589                                 "allocated!", name);
 590                 return NULL;
 591         }
 592
 593         dev_id = rte_cryptodev_find_free_device_index();
 594         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 595                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 596                 return NULL;
 597         }
 598
 599         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 600
 601         if (cryptodev->data == NULL) {
 602                 struct rte_cryptodev_data *cryptodev_data =
 603                                 cryptodev_globals.data[dev_id];
 604
 605                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 606                                 socket_id);
 607
 608                 if (retval < 0 || cryptodev_data == NULL)
 609                         return NULL;
 610
 611                 cryptodev->data = cryptodev_data;
 612
 613                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 614                                 "%s", name);
 615
 616                 cryptodev->data->dev_id = dev_id;
 617                 cryptodev->data->socket_id = socket_id;
 618                 cryptodev->data->dev_started = 0;
 619
 620                 /* init user callbacks */
 621                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 622
 623                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 624
 625                 cryptodev_globals.nb_devs++;
 626         }
 627
 628         return cryptodev;
 629 }
 630
 631 int
 632 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 633 {
 634         int ret;
 635
 636         if (cryptodev == NULL)
 637                 return -EINVAL;
 638
 639         /* Close device only if device operations have been set */
 640         if (cryptodev->dev_ops) {
 641                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 642                 if (ret < 0)
 643                         return ret;
 644         }
 645
 646         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 647         cryptodev_globals.nb_devs--;
 648         return 0;
 649 }
 650
 651 uint16_t
 652 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 653 {
 654         struct rte_cryptodev *dev;
 655
 656         dev = &rte_crypto_devices[dev_id];
 657         return dev->data->nb_queue_pairs;
 658 }
 659
 660 static int
 661 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 662                 int socket_id)
 663 {
 664         struct rte_cryptodev_info dev_info;
 665         void **qp;
 666         unsigned i;
 667
 668         if ((dev == NULL) || (nb_qpairs < 1)) {
 669                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 670                                                         dev, nb_qpairs);
 671                 return -EINVAL;
 672         }
 673
 674         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 675                         nb_qpairs, dev->data->dev_id);
 676
 677         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 678
 679         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 680         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 681
 682         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 683                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 684                                 nb_qpairs, dev->data->dev_id);
 685             return -EINVAL;
 686         }
 687
 688         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 689                 dev->data->queue_pairs = rte_zmalloc_socket(
 690                                 "cryptodev->queue_pairs",
 691                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 692                                 RTE_CACHE_LINE_SIZE, socket_id);
 693
 694                 if (dev->data->queue_pairs == NULL) {
 695                         dev->data->nb_queue_pairs = 0;
 696                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 697                                                         "nb_queues %u",
 698                                                         nb_qpairs);
 699                         return -(ENOMEM);
 700                 }
 701         } else { /* re-configure */
 702                 int ret;
 703                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 704
 705                 qp = dev->data->queue_pairs;
 706
 707                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 708                                 -ENOTSUP);
 709
 710                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 711                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 712                         if (ret < 0)
 713                                 return ret;
 714                 }
 715
 716                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 717                                 RTE_CACHE_LINE_SIZE);
 718                 if (qp == NULL) {
 719                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 720                                                 " nb_queues %u", nb_qpairs);
 721                         return -(ENOMEM);
 722                 }
 723
 724                 if (nb_qpairs > old_nb_queues) {
 725                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 726
 727                         memset(qp + old_nb_queues, 0,
 728                                 sizeof(qp[0]) * new_qs);
 729                 }
 730
 731                 dev->data->queue_pairs = qp;
 732
 733         }
 734         dev->data->nb_queue_pairs = nb_qpairs;
 735         return 0;
 736 }
 737
 738 int
 739 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 740 {
 741         struct rte_cryptodev *dev;
 742         int diag;
 743
 744         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 745                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 746                 return -EINVAL;
 747         }
 748
 749         dev = &rte_crypto_devices[dev_id];
 750
 751         if (dev->data->dev_started) {
 752                 CDEV_LOG_ERR(
 753                     "device %d must be stopped to allow configuration", dev_id);
 754                 return -EBUSY;
 755         }
 756
 757         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 758
 759         /* Setup new number of queue pairs and reconfigure device. */
 760         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 761                         config->socket_id);
 762         if (diag != 0) {
 763                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 764                                 dev_id, diag);
 765                 return diag;
 766         }
 767
 768         return (*dev->dev_ops->dev_configure)(dev, config);
 769 }
 770
 771
 772 int
 773 rte_cryptodev_start(uint8_t dev_id)
 774 {
 775         struct rte_cryptodev *dev;
 776         int diag;
 777
 778         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 779
 780         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 781                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 782                 return -EINVAL;
 783         }
 784
 785         dev = &rte_crypto_devices[dev_id];
 786
 787         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 788
 789         if (dev->data->dev_started != 0) {
 790                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 791                         dev_id);
 792                 return 0;
 793         }
 794
 795         diag = (*dev->dev_ops->dev_start)(dev);
 796         if (diag == 0)
 797                 dev->data->dev_started = 1;
 798         else
 799                 return diag;
 800
 801         return 0;
 802 }
 803
 804 void
 805 rte_cryptodev_stop(uint8_t dev_id)
 806 {
 807         struct rte_cryptodev *dev;
 808
 809         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 810                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 811                 return;
 812         }
 813
 814         dev = &rte_crypto_devices[dev_id];
 815
 816         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 817
 818         if (dev->data->dev_started == 0) {
 819                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 820                         dev_id);
 821                 return;
 822         }
 823
 824         (*dev->dev_ops->dev_stop)(dev);
 825         dev->data->dev_started = 0;
 826 }
 827
 828 int
 829 rte_cryptodev_close(uint8_t dev_id)
 830 {
 831         struct rte_cryptodev *dev;
 832         int retval;
 833
 834         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 835                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 836                 return -1;
 837         }
 838
 839         dev = &rte_crypto_devices[dev_id];
 840
 841         /* Device must be stopped before it can be closed */
 842         if (dev->data->dev_started == 1) {
 843                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 844                                 dev_id);
 845                 return -EBUSY;
 846         }
 847
 848         /* We can't close the device if there are outstanding sessions in use */
 849         if (dev->data->session_pool != NULL) {
 850                 if (!rte_mempool_full(dev->data->session_pool)) {
 851                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 852                                         "has sessions still in use, free "
 853                                         "all sessions before calling close",
 854                                         (unsigned)dev_id);
 855                         return -EBUSY;
 856                 }
 857         }
 858
 859         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 860         retval = (*dev->dev_ops->dev_close)(dev);
 861
 862         if (retval < 0)
 863                 return retval;
 864
 865         return 0;
 866 }
 867
 868 int
 869 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 870                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
 871                 struct rte_mempool *session_pool)
 872
 873 {
 874         struct rte_cryptodev *dev;
 875
 876         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 877                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 878                 return -EINVAL;
 879         }
 880
 881         dev = &rte_crypto_devices[dev_id];
 882         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 883                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 884                 return -EINVAL;
 885         }
 886
 887         if (dev->data->dev_started) {
 888                 CDEV_LOG_ERR(
 889                     "device %d must be stopped to allow configuration", dev_id);
 890                 return -EBUSY;
 891         }
 892
 893         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 894
 895         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 896                         socket_id, session_pool);
 897 }
 898
 899
 900 int
 901 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 902 {
 903         struct rte_cryptodev *dev;
 904
 905         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 906                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 907                 return -ENODEV;
 908         }
 909
 910         if (stats == NULL) {
 911                 CDEV_LOG_ERR("Invalid stats ptr");
 912                 return -EINVAL;
 913         }
 914
 915         dev = &rte_crypto_devices[dev_id];
 916         memset(stats, 0, sizeof(*stats));
 917
 918         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 919         (*dev->dev_ops->stats_get)(dev, stats);
 920         return 0;
 921 }
 922
 923 void
 924 rte_cryptodev_stats_reset(uint8_t dev_id)
 925 {
 926         struct rte_cryptodev *dev;
 927
 928         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 929                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 930                 return;
 931         }
 932
 933         dev = &rte_crypto_devices[dev_id];
 934
 935         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 936         (*dev->dev_ops->stats_reset)(dev);
 937 }
 938
 939
 940 void
 941 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 942 {
 943         struct rte_cryptodev *dev;
 944
 945         if (dev_id >= cryptodev_globals.nb_devs) {
 946                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 947                 return;
 948         }
 949
 950         dev = &rte_crypto_devices[dev_id];
 951
 952         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 953
 954         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 955         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 956
 957         dev_info->driver_name = dev->device->driver->name;
 958         dev_info->device = dev->device;
 959 }
 960
 961
 962 int
 963 rte_cryptodev_callback_register(uint8_t dev_id,
 964                         enum rte_cryptodev_event_type event,
 965                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 966 {
 967         struct rte_cryptodev *dev;
 968         struct rte_cryptodev_callback *user_cb;
 969
 970         if (!cb_fn)
 971                 return -EINVAL;
 972
 973         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 974                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 975                 return -EINVAL;
 976         }
 977
 978         dev = &rte_crypto_devices[dev_id];
 979         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 980
 981         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 982                 if (user_cb->cb_fn == cb_fn &&
 983                         user_cb->cb_arg == cb_arg &&
 984                         user_cb->event == event) {
 985                         break;
 986                 }
 987         }
 988
 989         /* create a new callback. */
 990         if (user_cb == NULL) {
 991                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 992                                 sizeof(struct rte_cryptodev_callback), 0);
 993                 if (user_cb != NULL) {
 994                         user_cb->cb_fn = cb_fn;
 995                         user_cb->cb_arg = cb_arg;
 996                         user_cb->event = event;
 997                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
 998                 }
 999         }
1000
1001         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1002         return (user_cb == NULL) ? -ENOMEM : 0;
1003 }
1004
1005 int
1006 rte_cryptodev_callback_unregister(uint8_t dev_id,
1007                         enum rte_cryptodev_event_type event,
1008                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1009 {
1010         int ret;
1011         struct rte_cryptodev *dev;
1012         struct rte_cryptodev_callback *cb, *next;
1013
1014         if (!cb_fn)
1015                 return -EINVAL;
1016
1017         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1018                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1019                 return -EINVAL;
1020         }
1021
1022         dev = &rte_crypto_devices[dev_id];
1023         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1024
1025         ret = 0;
1026         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1027
1028                 next = TAILQ_NEXT(cb, next);
1029
1030                 if (cb->cb_fn != cb_fn || cb->event != event ||
1031                                 (cb->cb_arg != (void *)-1 &&
1032                                 cb->cb_arg != cb_arg))
1033                         continue;
1034
1035                 /*
1036                  * if this callback is not executing right now,
1037                  * then remove it.
1038                  */
1039                 if (cb->active == 0) {
1040                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1041                         rte_free(cb);
1042                 } else {
1043                         ret = -EAGAIN;
1044                 }
1045         }
1046
1047         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1048         return ret;
1049 }
1050
1051 void
1052 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1053         enum rte_cryptodev_event_type event)
1054 {
1055         struct rte_cryptodev_callback *cb_lst;
1056         struct rte_cryptodev_callback dev_cb;
1057
1058         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1059         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1060                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1061                         continue;
1062                 dev_cb = *cb_lst;
1063                 cb_lst->active = 1;
1064                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1065                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1066                                                 dev_cb.cb_arg);
1067                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1068                 cb_lst->active = 0;
1069         }
1070         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1071 }
1072
1073
1074 int
1075 rte_cryptodev_sym_session_init(uint8_t dev_id,
1076                 struct rte_cryptodev_sym_session *sess,
1077                 struct rte_crypto_sym_xform *xforms,
1078                 struct rte_mempool *mp)
1079 {
1080         struct rte_cryptodev *dev;
1081         uint8_t index;
1082         int ret;
1083
1084         dev = rte_cryptodev_pmd_get_dev(dev_id);
1085
1086         if (sess == NULL || xforms == NULL || dev == NULL)
1087                 return -EINVAL;
1088
1089         index = dev->driver_id;
1090
1091         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);
1092
1093         if (sess->sess_private_data[index] == NULL) {
1094                 ret = dev->dev_ops->sym_session_configure(dev, xforms,
1095                                                         sess, mp);
1096                 if (ret < 0) {
1097                         CDEV_LOG_ERR(
1098                                 "dev_id %d failed to configure session details",
1099                                 dev_id);
1100                         return ret;
1101                 }
1102         }
1103
1104         return 0;
1105 }
1106
1107 int __rte_experimental
1108 rte_cryptodev_asym_session_init(uint8_t dev_id,
1109                 struct rte_cryptodev_asym_session *sess,
1110                 struct rte_crypto_asym_xform *xforms,
1111                 struct rte_mempool *mp)
1112 {
1113         struct rte_cryptodev *dev;
1114         uint8_t index;
1115         int ret;
1116
1117         dev = rte_cryptodev_pmd_get_dev(dev_id);
1118
1119         if (sess == NULL || xforms == NULL || dev == NULL)
1120                 return -EINVAL;
1121
1122         index = dev->driver_id;
1123
1124         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_configure,
1125                                 -ENOTSUP);
1126
1127         if (sess->sess_private_data[index] == NULL) {
1128                 ret = dev->dev_ops->asym_session_configure(dev,
1129                                                         xforms,
1130                                                         sess, mp);
1131                 if (ret < 0) {
1132                         CDEV_LOG_ERR(
1133                                 "dev_id %d failed to configure session details",
1134                                 dev_id);
1135                         return ret;
1136                 }
1137         }
1138
1139         return 0;
1140 }
1141
1142 struct rte_cryptodev_sym_session *
1143 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1144 {
1145         struct rte_cryptodev_sym_session *sess;
1146
1147         /* Allocate a session structure from the session pool */
1148         if (rte_mempool_get(mp, (void **)&sess)) {
1149                 CDEV_LOG_ERR("couldn't get object from session mempool");
1150                 return NULL;
1151         }
1152
1153         /* Clear device session pointer.
1154          * Include the flag indicating presence of user data
1155          */
1156         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1157
1158         return sess;
1159 }
1160
1161 struct rte_cryptodev_asym_session * __rte_experimental
1162 rte_cryptodev_asym_session_create(struct rte_mempool *mp)
1163 {
1164         struct rte_cryptodev_asym_session *sess;
1165
1166         /* Allocate a session structure from the session pool */
1167         if (rte_mempool_get(mp, (void **)&sess)) {
1168                 CDEV_LOG_ERR("couldn't get object from session mempool");
1169                 return NULL;
1170         }
1171
1172         /* Clear device session pointer.
1173          * Include the flag indicating presence of private data
1174          */
1175         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1176
1177         return sess;
1178 }
1179
1180 int
1181 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1182                 struct rte_cryptodev_sym_session *sess)
1183 {
1184         struct rte_cryptodev *dev;
1185
1186         dev = rte_cryptodev_pmd_get_dev(dev_id);
1187
1188         if (dev == NULL || sess == NULL)
1189                 return -EINVAL;
1190
1191         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_clear, -ENOTSUP);
1192
1193         dev->dev_ops->sym_session_clear(dev, sess);
1194
1195         return 0;
1196 }
1197
1198 int __rte_experimental
1199 rte_cryptodev_asym_session_clear(uint8_t dev_id,
1200                 struct rte_cryptodev_asym_session *sess)
1201 {
1202         struct rte_cryptodev *dev;
1203
1204         dev = rte_cryptodev_pmd_get_dev(dev_id);
1205
1206         if (dev == NULL || sess == NULL)
1207                 return -EINVAL;
1208
1209         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_clear, -ENOTSUP);
1210
1211         dev->dev_ops->asym_session_clear(dev, sess);
1212
1213         return 0;
1214 }
1215
1216 int
1217 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1218 {
1219         uint8_t i;
1220         void *sess_priv;
1221         struct rte_mempool *sess_mp;
1222
1223         if (sess == NULL)
1224                 return -EINVAL;
1225
1226         /* Check that all device private data has been freed */
1227         for (i = 0; i < nb_drivers; i++) {
1228                 sess_priv = get_sym_session_private_data(sess, i);
1229                 if (sess_priv != NULL)
1230                         return -EBUSY;
1231         }
1232
1233         /* Return session to mempool */
1234         sess_mp = rte_mempool_from_obj(sess);
1235         rte_mempool_put(sess_mp, sess);
1236
1237         return 0;
1238 }
1239
1240 int __rte_experimental
1241 rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess)
1242 {
1243         uint8_t i;
1244         void *sess_priv;
1245         struct rte_mempool *sess_mp;
1246
1247         if (sess == NULL)
1248                 return -EINVAL;
1249
1250         /* Check that all device private data has been freed */
1251         for (i = 0; i < nb_drivers; i++) {
1252                 sess_priv = get_asym_session_private_data(sess, i);
1253                 if (sess_priv != NULL)
1254                         return -EBUSY;
1255         }
1256
1257         /* Return session to mempool */
1258         sess_mp = rte_mempool_from_obj(sess);
1259         rte_mempool_put(sess_mp, sess);
1260
1261         return 0;
1262 }
1263
1264
1265 unsigned int
1266 rte_cryptodev_sym_get_header_session_size(void)
1267 {
1268         /*
1269          * Header contains pointers to the private data
1270          * of all registered drivers, and a flag which
1271          * indicates presence of user data
1272          */
1273         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1274 }
1275
1276 unsigned int __rte_experimental
1277 rte_cryptodev_asym_get_header_session_size(void)
1278 {
1279         /*
1280          * Header contains pointers to the private data
1281          * of all registered drivers, and a flag which
1282          * indicates presence of private data
1283          */
1284         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1285 }
1286
1287 unsigned int
1288 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
1289 {
1290         struct rte_cryptodev *dev;
1291         unsigned int header_size = sizeof(void *) * nb_drivers;
1292         unsigned int priv_sess_size;
1293
1294         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1295                 return 0;
1296
1297         dev = rte_cryptodev_pmd_get_dev(dev_id);
1298
1299         if (*dev->dev_ops->sym_session_get_size == NULL)
1300                 return 0;
1301
1302         priv_sess_size = (*dev->dev_ops->sym_session_get_size)(dev);
1303
1304         /*
1305          * If size is less than session header size,
1306          * return the latter, as this guarantees that
1307          * sessionless operations will work
1308          */
1309         if (priv_sess_size < header_size)
1310                 return header_size;
1311
1312         return priv_sess_size;
1313
1314 }
1315
1316 unsigned int __rte_experimental
1317 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id)
1318 {
1319         struct rte_cryptodev *dev;
1320         unsigned int header_size = sizeof(void *) * nb_drivers;
1321         unsigned int priv_sess_size;
1322
1323         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1324                 return 0;
1325
1326         dev = rte_cryptodev_pmd_get_dev(dev_id);
1327
1328         if (*dev->dev_ops->asym_session_get_size == NULL)
1329                 return 0;
1330
1331         priv_sess_size = (*dev->dev_ops->asym_session_get_size)(dev);
1332         if (priv_sess_size < header_size)
1333                 return header_size;
1334
1335         return priv_sess_size;
1336
1337 }
1338
1339 int __rte_experimental
1340 rte_cryptodev_sym_session_set_user_data(
1341                                         struct rte_cryptodev_sym_session *sess,
1342                                         void *data,
1343                                         uint16_t size)
1344 {
1345         uint16_t off_set = sizeof(void *) * nb_drivers;
1346         uint8_t *user_data_present = (uint8_t *)sess + off_set;
1347
1348         if (sess == NULL)
1349                 return -EINVAL;
1350
1351         *user_data_present = 1;
1352         off_set += sizeof(uint8_t);
1353         rte_memcpy((uint8_t *)sess + off_set, data, size);
1354         return 0;
1355 }
1356
1357 void * __rte_experimental
1358 rte_cryptodev_sym_session_get_user_data(
1359                                         struct rte_cryptodev_sym_session *sess)
1360 {
1361         uint16_t off_set = sizeof(void *) * nb_drivers;
1362         uint8_t *user_data_present = (uint8_t *)sess + off_set;
1363
1364         if (sess == NULL || !*user_data_present)
1365                 return NULL;
1366
1367         off_set += sizeof(uint8_t);
1368         return (uint8_t *)sess + off_set;
1369 }
1370
1371 /** Initialise rte_crypto_op mempool element */
1372 static void
1373 rte_crypto_op_init(struct rte_mempool *mempool,
1374                 void *opaque_arg,
1375                 void *_op_data,
1376                 __rte_unused unsigned i)
1377 {
1378         struct rte_crypto_op *op = _op_data;
1379         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1380
1381         memset(_op_data, 0, mempool->elt_size);
1382
1383         __rte_crypto_op_reset(op, type);
1384
1385         op->phys_addr = rte_mem_virt2iova(_op_data);
1386         op->mempool = mempool;
1387 }
1388
1389
1390 struct rte_mempool *
1391 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1392                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1393                 int socket_id)
1394 {
1395         struct rte_crypto_op_pool_private *priv;
1396
1397         unsigned elt_size = sizeof(struct rte_crypto_op) +
1398                         priv_size;
1399
1400         if (type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
1401                 elt_size += sizeof(struct rte_crypto_sym_op);
1402         } else if (type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
1403                 elt_size += sizeof(struct rte_crypto_asym_op);
1404         } else {
1405                 CDEV_LOG_ERR("Invalid op_type\n");
1406                 return NULL;
1407         }
1408
1409         /* lookup mempool in case already allocated */
1410         struct rte_mempool *mp = rte_mempool_lookup(name);
1411
1412         if (mp != NULL) {
1413                 priv = (struct rte_crypto_op_pool_private *)
1414                                 rte_mempool_get_priv(mp);
1415
1416                 if (mp->elt_size != elt_size ||
1417                                 mp->cache_size < cache_size ||
1418                                 mp->size < nb_elts ||
1419                                 priv->priv_size <  priv_size) {
1420                         mp = NULL;
1421                         CDEV_LOG_ERR("Mempool %s already exists but with "
1422                                         "incompatible parameters", name);
1423                         return NULL;
1424                 }
1425                 return mp;
1426         }
1427
1428         mp = rte_mempool_create(
1429                         name,
1430                         nb_elts,
1431                         elt_size,
1432                         cache_size,
1433                         sizeof(struct rte_crypto_op_pool_private),
1434                         NULL,
1435                         NULL,
1436                         rte_crypto_op_init,
1437                         &type,
1438                         socket_id,
1439                         0);
1440
1441         if (mp == NULL) {
1442                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1443                 return NULL;
1444         }
1445
1446         priv = (struct rte_crypto_op_pool_private *)
1447                         rte_mempool_get_priv(mp);
1448
1449         priv->priv_size = priv_size;
1450         priv->type = type;
1451
1452         return mp;
1453 }
1454
1455 int
1456 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1457 {
1458         struct rte_cryptodev *dev = NULL;
1459         uint32_t i = 0;
1460
1461         if (name == NULL)
1462                 return -EINVAL;
1463
1464         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1465                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1466                                 "%s_%u", dev_name_prefix, i);
1467
1468                 if (ret < 0)
1469                         return ret;
1470
1471                 dev = rte_cryptodev_pmd_get_named_dev(name);
1472                 if (!dev)
1473                         return 0;
1474         }
1475
1476         return -1;
1477 }
1478
1479 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1480
1481 static struct cryptodev_driver_list cryptodev_driver_list =
1482         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1483
1484 int
1485 rte_cryptodev_driver_id_get(const char *name)
1486 {
1487         struct cryptodev_driver *driver;
1488         const char *driver_name;
1489
1490         if (name == NULL) {
1491                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1492                 return -1;
1493         }
1494
1495         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1496                 driver_name = driver->driver->name;
1497                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1498                         return driver->id;
1499         }
1500         return -1;
1501 }
1502
1503 const char *
1504 rte_cryptodev_name_get(uint8_t dev_id)
1505 {
1506         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1507
1508         if (dev == NULL)
1509                 return NULL;
1510
1511         return dev->data->name;
1512 }
1513
1514 const char *
1515 rte_cryptodev_driver_name_get(uint8_t driver_id)
1516 {
1517         struct cryptodev_driver *driver;
1518
1519         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1520                 if (driver->id == driver_id)
1521                         return driver->driver->name;
1522         return NULL;
1523 }
1524
1525 uint8_t
1526 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1527                 const struct rte_driver *drv)
1528 {
1529         crypto_drv->driver = drv;
1530         crypto_drv->id = nb_drivers;
1531
1532         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1533
1534         return nb_drivers++;
1535 }