lib/librte_cryptodev/rte_cryptodev.c

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