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 int
 492 rte_cryptodev_socket_id(uint8_t dev_id)
 493 {
 494         struct rte_cryptodev *dev;
 495
 496         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 497                 return -1;
 498
 499         dev = rte_cryptodev_pmd_get_dev(dev_id);
 500
 501         return dev->data->socket_id;
 502 }
 503
 504 static inline int
 505 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 506                 int socket_id)
 507 {
 508         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 509         const struct rte_memzone *mz;
 510         int n;
 511
 512         /* generate memzone name */
 513         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 514         if (n >= (int)sizeof(mz_name))
 515                 return -EINVAL;
 516
 517         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 518                 mz = rte_memzone_reserve(mz_name,
 519                                 sizeof(struct rte_cryptodev_data),
 520                                 socket_id, 0);
 521         } else
 522                 mz = rte_memzone_lookup(mz_name);
 523
 524         if (mz == NULL)
 525                 return -ENOMEM;
 526
 527         *data = mz->addr;
 528         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 529                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 530
 531         return 0;
 532 }
 533
 534 static uint8_t
 535 rte_cryptodev_find_free_device_index(void)
 536 {
 537         uint8_t dev_id;
 538
 539         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 540                 if (rte_crypto_devices[dev_id].attached ==
 541                                 RTE_CRYPTODEV_DETACHED)
 542                         return dev_id;
 543         }
 544         return RTE_CRYPTO_MAX_DEVS;
 545 }
 546
 547 struct rte_cryptodev *
 548 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 549 {
 550         struct rte_cryptodev *cryptodev;
 551         uint8_t dev_id;
 552
 553         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 554                 CDEV_LOG_ERR("Crypto device with name %s already "
 555                                 "allocated!", name);
 556                 return NULL;
 557         }
 558
 559         dev_id = rte_cryptodev_find_free_device_index();
 560         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 561                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 562                 return NULL;
 563         }
 564
 565         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 566
 567         if (cryptodev->data == NULL) {
 568                 struct rte_cryptodev_data *cryptodev_data =
 569                                 cryptodev_globals.data[dev_id];
 570
 571                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 572                                 socket_id);
 573
 574                 if (retval < 0 || cryptodev_data == NULL)
 575                         return NULL;
 576
 577                 cryptodev->data = cryptodev_data;
 578
 579                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 580                                 "%s", name);
 581
 582                 cryptodev->data->dev_id = dev_id;
 583                 cryptodev->data->socket_id = socket_id;
 584                 cryptodev->data->dev_started = 0;
 585
 586                 /* init user callbacks */
 587                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 588
 589                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 590
 591                 cryptodev_globals.nb_devs++;
 592         }
 593
 594         return cryptodev;
 595 }
 596
 597 int
 598 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 599 {
 600         int ret;
 601
 602         if (cryptodev == NULL)
 603                 return -EINVAL;
 604
 605         /* Close device only if device operations have been set */
 606         if (cryptodev->dev_ops) {
 607                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 608                 if (ret < 0)
 609                         return ret;
 610         }
 611
 612         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 613         cryptodev_globals.nb_devs--;
 614         return 0;
 615 }
 616
 617 uint16_t
 618 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 619 {
 620         struct rte_cryptodev *dev;
 621
 622         dev = &rte_crypto_devices[dev_id];
 623         return dev->data->nb_queue_pairs;
 624 }
 625
 626 static int
 627 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 628                 int socket_id)
 629 {
 630         struct rte_cryptodev_info dev_info;
 631         void **qp;
 632         unsigned i;
 633
 634         if ((dev == NULL) || (nb_qpairs < 1)) {
 635                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 636                                                         dev, nb_qpairs);
 637                 return -EINVAL;
 638         }
 639
 640         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 641                         nb_qpairs, dev->data->dev_id);
 642
 643         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 644
 645         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 646         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 647
 648         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 649                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 650                                 nb_qpairs, dev->data->dev_id);
 651             return -EINVAL;
 652         }
 653
 654         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 655                 dev->data->queue_pairs = rte_zmalloc_socket(
 656                                 "cryptodev->queue_pairs",
 657                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 658                                 RTE_CACHE_LINE_SIZE, socket_id);
 659
 660                 if (dev->data->queue_pairs == NULL) {
 661                         dev->data->nb_queue_pairs = 0;
 662                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 663                                                         "nb_queues %u",
 664                                                         nb_qpairs);
 665                         return -(ENOMEM);
 666                 }
 667         } else { /* re-configure */
 668                 int ret;
 669                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 670
 671                 qp = dev->data->queue_pairs;
 672
 673                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 674                                 -ENOTSUP);
 675
 676                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 677                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 678                         if (ret < 0)
 679                                 return ret;
 680                 }
 681
 682                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 683                                 RTE_CACHE_LINE_SIZE);
 684                 if (qp == NULL) {
 685                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 686                                                 " nb_queues %u", nb_qpairs);
 687                         return -(ENOMEM);
 688                 }
 689
 690                 if (nb_qpairs > old_nb_queues) {
 691                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 692
 693                         memset(qp + old_nb_queues, 0,
 694                                 sizeof(qp[0]) * new_qs);
 695                 }
 696
 697                 dev->data->queue_pairs = qp;
 698
 699         }
 700         dev->data->nb_queue_pairs = nb_qpairs;
 701         return 0;
 702 }
 703
 704 int
 705 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 706 {
 707         struct rte_cryptodev *dev;
 708
 709         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 710                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 711                 return -EINVAL;
 712         }
 713
 714         dev = &rte_crypto_devices[dev_id];
 715         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 716                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 717                 return -EINVAL;
 718         }
 719
 720         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 721
 722         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 723
 724 }
 725
 726 int
 727 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 728 {
 729         struct rte_cryptodev *dev;
 730
 731         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 732                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 733                 return -EINVAL;
 734         }
 735
 736         dev = &rte_crypto_devices[dev_id];
 737         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 738                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 739                 return -EINVAL;
 740         }
 741
 742         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 743
 744         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 745
 746 }
 747
 748 int
 749 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 750 {
 751         struct rte_cryptodev *dev;
 752         int diag;
 753
 754         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 755                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 756                 return -EINVAL;
 757         }
 758
 759         dev = &rte_crypto_devices[dev_id];
 760
 761         if (dev->data->dev_started) {
 762                 CDEV_LOG_ERR(
 763                     "device %d must be stopped to allow configuration", dev_id);
 764                 return -EBUSY;
 765         }
 766
 767         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 768
 769         /* Setup new number of queue pairs and reconfigure device. */
 770         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 771                         config->socket_id);
 772         if (diag != 0) {
 773                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 774                                 dev_id, diag);
 775                 return diag;
 776         }
 777
 778         return (*dev->dev_ops->dev_configure)(dev, config);
 779 }
 780
 781
 782 int
 783 rte_cryptodev_start(uint8_t dev_id)
 784 {
 785         struct rte_cryptodev *dev;
 786         int diag;
 787
 788         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 789
 790         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 791                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 792                 return -EINVAL;
 793         }
 794
 795         dev = &rte_crypto_devices[dev_id];
 796
 797         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 798
 799         if (dev->data->dev_started != 0) {
 800                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 801                         dev_id);
 802                 return 0;
 803         }
 804
 805         diag = (*dev->dev_ops->dev_start)(dev);
 806         if (diag == 0)
 807                 dev->data->dev_started = 1;
 808         else
 809                 return diag;
 810
 811         return 0;
 812 }
 813
 814 void
 815 rte_cryptodev_stop(uint8_t dev_id)
 816 {
 817         struct rte_cryptodev *dev;
 818
 819         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 820                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 821                 return;
 822         }
 823
 824         dev = &rte_crypto_devices[dev_id];
 825
 826         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 827
 828         if (dev->data->dev_started == 0) {
 829                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 830                         dev_id);
 831                 return;
 832         }
 833
 834         (*dev->dev_ops->dev_stop)(dev);
 835         dev->data->dev_started = 0;
 836 }
 837
 838 int
 839 rte_cryptodev_close(uint8_t dev_id)
 840 {
 841         struct rte_cryptodev *dev;
 842         int retval;
 843
 844         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 845                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 846                 return -1;
 847         }
 848
 849         dev = &rte_crypto_devices[dev_id];
 850
 851         /* Device must be stopped before it can be closed */
 852         if (dev->data->dev_started == 1) {
 853                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 854                                 dev_id);
 855                 return -EBUSY;
 856         }
 857
 858         /* We can't close the device if there are outstanding sessions in use */
 859         if (dev->data->session_pool != NULL) {
 860                 if (!rte_mempool_full(dev->data->session_pool)) {
 861                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 862                                         "has sessions still in use, free "
 863                                         "all sessions before calling close",
 864                                         (unsigned)dev_id);
 865                         return -EBUSY;
 866                 }
 867         }
 868
 869         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 870         retval = (*dev->dev_ops->dev_close)(dev);
 871
 872         if (retval < 0)
 873                 return retval;
 874
 875         return 0;
 876 }
 877
 878 int
 879 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 880                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
 881                 struct rte_mempool *session_pool)
 882
 883 {
 884         struct rte_cryptodev *dev;
 885
 886         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 887                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 888                 return -EINVAL;
 889         }
 890
 891         dev = &rte_crypto_devices[dev_id];
 892         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 893                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 894                 return -EINVAL;
 895         }
 896
 897         if (dev->data->dev_started) {
 898                 CDEV_LOG_ERR(
 899                     "device %d must be stopped to allow configuration", dev_id);
 900                 return -EBUSY;
 901         }
 902
 903         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 904
 905         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 906                         socket_id, session_pool);
 907 }
 908
 909
 910 int
 911 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 912 {
 913         struct rte_cryptodev *dev;
 914
 915         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 916                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 917                 return -ENODEV;
 918         }
 919
 920         if (stats == NULL) {
 921                 CDEV_LOG_ERR("Invalid stats ptr");
 922                 return -EINVAL;
 923         }
 924
 925         dev = &rte_crypto_devices[dev_id];
 926         memset(stats, 0, sizeof(*stats));
 927
 928         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 929         (*dev->dev_ops->stats_get)(dev, stats);
 930         return 0;
 931 }
 932
 933 void
 934 rte_cryptodev_stats_reset(uint8_t dev_id)
 935 {
 936         struct rte_cryptodev *dev;
 937
 938         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 939                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 940                 return;
 941         }
 942
 943         dev = &rte_crypto_devices[dev_id];
 944
 945         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 946         (*dev->dev_ops->stats_reset)(dev);
 947 }
 948
 949
 950 void
 951 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 952 {
 953         struct rte_cryptodev *dev;
 954
 955         if (dev_id >= cryptodev_globals.nb_devs) {
 956                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 957                 return;
 958         }
 959
 960         dev = &rte_crypto_devices[dev_id];
 961
 962         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 963
 964         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 965         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 966
 967         dev_info->driver_name = dev->device->driver->name;
 968 }
 969
 970
 971 int
 972 rte_cryptodev_callback_register(uint8_t dev_id,
 973                         enum rte_cryptodev_event_type event,
 974                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 975 {
 976         struct rte_cryptodev *dev;
 977         struct rte_cryptodev_callback *user_cb;
 978
 979         if (!cb_fn)
 980                 return -EINVAL;
 981
 982         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 983                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 984                 return -EINVAL;
 985         }
 986
 987         dev = &rte_crypto_devices[dev_id];
 988         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 989
 990         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 991                 if (user_cb->cb_fn == cb_fn &&
 992                         user_cb->cb_arg == cb_arg &&
 993                         user_cb->event == event) {
 994                         break;
 995                 }
 996         }
 997
 998         /* create a new callback. */
 999         if (user_cb == NULL) {
1000                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1001                                 sizeof(struct rte_cryptodev_callback), 0);
1002                 if (user_cb != NULL) {
1003                         user_cb->cb_fn = cb_fn;
1004                         user_cb->cb_arg = cb_arg;
1005                         user_cb->event = event;
1006                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1007                 }
1008         }
1009
1010         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1011         return (user_cb == NULL) ? -ENOMEM : 0;
1012 }
1013
1014 int
1015 rte_cryptodev_callback_unregister(uint8_t dev_id,
1016                         enum rte_cryptodev_event_type event,
1017                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1018 {
1019         int ret;
1020         struct rte_cryptodev *dev;
1021         struct rte_cryptodev_callback *cb, *next;
1022
1023         if (!cb_fn)
1024                 return -EINVAL;
1025
1026         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1027                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1028                 return -EINVAL;
1029         }
1030
1031         dev = &rte_crypto_devices[dev_id];
1032         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1033
1034         ret = 0;
1035         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1036
1037                 next = TAILQ_NEXT(cb, next);
1038
1039                 if (cb->cb_fn != cb_fn || cb->event != event ||
1040                                 (cb->cb_arg != (void *)-1 &&
1041                                 cb->cb_arg != cb_arg))
1042                         continue;
1043
1044                 /*
1045                  * if this callback is not executing right now,
1046                  * then remove it.
1047                  */
1048                 if (cb->active == 0) {
1049                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1050                         rte_free(cb);
1051                 } else {
1052                         ret = -EAGAIN;
1053                 }
1054         }
1055
1056         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1057         return ret;
1058 }
1059
1060 void
1061 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1062         enum rte_cryptodev_event_type event)
1063 {
1064         struct rte_cryptodev_callback *cb_lst;
1065         struct rte_cryptodev_callback dev_cb;
1066
1067         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1068         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1069                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1070                         continue;
1071                 dev_cb = *cb_lst;
1072                 cb_lst->active = 1;
1073                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1074                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1075                                                 dev_cb.cb_arg);
1076                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1077                 cb_lst->active = 0;
1078         }
1079         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1080 }
1081
1082
1083 int
1084 rte_cryptodev_sym_session_init(uint8_t dev_id,
1085                 struct rte_cryptodev_sym_session *sess,
1086                 struct rte_crypto_sym_xform *xforms,
1087                 struct rte_mempool *mp)
1088 {
1089         struct rte_cryptodev *dev;
1090         uint8_t index;
1091         int ret;
1092
1093         dev = rte_cryptodev_pmd_get_dev(dev_id);
1094
1095         if (sess == NULL || xforms == NULL || dev == NULL)
1096                 return -EINVAL;
1097
1098         index = dev->driver_id;
1099
1100         if (sess->sess_private_data[index] == NULL) {
1101                 ret = dev->dev_ops->session_configure(dev, xforms, sess, mp);
1102                 if (ret < 0) {
1103                         CDEV_LOG_ERR(
1104                                 "dev_id %d failed to configure session details",
1105                                 dev_id);
1106                         return ret;
1107                 }
1108         }
1109
1110         return 0;
1111 }
1112
1113 struct rte_cryptodev_sym_session *
1114 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1115 {
1116         struct rte_cryptodev_sym_session *sess;
1117
1118         /* Allocate a session structure from the session pool */
1119         if (rte_mempool_get(mp, (void *)&sess)) {
1120                 CDEV_LOG_ERR("couldn't get object from session mempool");
1121                 return NULL;
1122         }
1123
1124         /* Clear device session pointer */
1125         memset(sess, 0, (sizeof(void *) * nb_drivers));
1126
1127         return sess;
1128 }
1129
1130 int
1131 rte_cryptodev_queue_pair_attach_sym_session(uint8_t dev_id, uint16_t qp_id,
1132                 struct rte_cryptodev_sym_session *sess)
1133 {
1134         struct rte_cryptodev *dev;
1135
1136         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1137                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1138                 return -EINVAL;
1139         }
1140
1141         dev = &rte_crypto_devices[dev_id];
1142
1143         /* The API is optional, not returning error if driver do not suuport */
1144         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1145
1146         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1147
1148         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess_priv)) {
1149                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1150                                 dev_id, qp_id);
1151                 return -EPERM;
1152         }
1153
1154         return 0;
1155 }
1156
1157 int
1158 rte_cryptodev_queue_pair_detach_sym_session(uint8_t dev_id, uint16_t qp_id,
1159                 struct rte_cryptodev_sym_session *sess)
1160 {
1161         struct rte_cryptodev *dev;
1162
1163         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1164                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1165                 return -EINVAL;
1166         }
1167
1168         dev = &rte_crypto_devices[dev_id];
1169
1170         /* The API is optional, not returning error if driver do not suuport */
1171         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1172
1173         void *sess_priv = get_session_private_data(sess, dev->driver_id);
1174
1175         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess_priv)) {
1176                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1177                                 dev_id, qp_id);
1178                 return -EPERM;
1179         }
1180
1181         return 0;
1182 }
1183
1184 int
1185 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1186                 struct rte_cryptodev_sym_session *sess)
1187 {
1188         struct rte_cryptodev *dev;
1189
1190         dev = rte_cryptodev_pmd_get_dev(dev_id);
1191
1192         if (dev == NULL || sess == NULL)
1193                 return -EINVAL;
1194
1195         dev->dev_ops->session_clear(dev, sess);
1196
1197         return 0;
1198 }
1199
1200 int
1201 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1202 {
1203         uint8_t i;
1204         void *sess_priv;
1205         struct rte_mempool *sess_mp;
1206
1207         if (sess == NULL)
1208                 return -EINVAL;
1209
1210         /* Check that all device private data has been freed */
1211         for (i = 0; i < nb_drivers; i++) {
1212                 sess_priv = get_session_private_data(sess, i);
1213                 if (sess_priv != NULL)
1214                         return -EBUSY;
1215         }
1216
1217         /* Return session to mempool */
1218         sess_mp = rte_mempool_from_obj(sess);
1219         rte_mempool_put(sess_mp, sess);
1220
1221         return 0;
1222 }
1223
1224 unsigned int
1225 rte_cryptodev_get_header_session_size(void)
1226 {
1227         /*
1228          * Header contains pointers to the private data
1229          * of all registered drivers
1230          */
1231         return (sizeof(void *) * nb_drivers);
1232 }
1233
1234 unsigned int
1235 rte_cryptodev_get_private_session_size(uint8_t dev_id)
1236 {
1237         struct rte_cryptodev *dev;
1238         unsigned int header_size = sizeof(void *) * nb_drivers;
1239         unsigned int priv_sess_size;
1240
1241         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1242                 return 0;
1243
1244         dev = rte_cryptodev_pmd_get_dev(dev_id);
1245
1246         if (*dev->dev_ops->session_get_size == NULL)
1247                 return 0;
1248
1249         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1250
1251         /*
1252          * If size is less than session header size,
1253          * return the latter, as this guarantees that
1254          * sessionless operations will work
1255          */
1256         if (priv_sess_size < header_size)
1257                 return header_size;
1258
1259         return priv_sess_size;
1260
1261 }
1262
1263 /** Initialise rte_crypto_op mempool element */
1264 static void
1265 rte_crypto_op_init(struct rte_mempool *mempool,
1266                 void *opaque_arg,
1267                 void *_op_data,
1268                 __rte_unused unsigned i)
1269 {
1270         struct rte_crypto_op *op = _op_data;
1271         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1272
1273         memset(_op_data, 0, mempool->elt_size);
1274
1275         __rte_crypto_op_reset(op, type);
1276
1277         op->phys_addr = rte_mem_virt2phy(_op_data);
1278         op->mempool = mempool;
1279 }
1280
1281
1282 struct rte_mempool *
1283 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1284                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1285                 int socket_id)
1286 {
1287         struct rte_crypto_op_pool_private *priv;
1288
1289         unsigned elt_size = sizeof(struct rte_crypto_op) +
1290                         sizeof(struct rte_crypto_sym_op) +
1291                         priv_size;
1292
1293         /* lookup mempool in case already allocated */
1294         struct rte_mempool *mp = rte_mempool_lookup(name);
1295
1296         if (mp != NULL) {
1297                 priv = (struct rte_crypto_op_pool_private *)
1298                                 rte_mempool_get_priv(mp);
1299
1300                 if (mp->elt_size != elt_size ||
1301                                 mp->cache_size < cache_size ||
1302                                 mp->size < nb_elts ||
1303                                 priv->priv_size <  priv_size) {
1304                         mp = NULL;
1305                         CDEV_LOG_ERR("Mempool %s already exists but with "
1306                                         "incompatible parameters", name);
1307                         return NULL;
1308                 }
1309                 return mp;
1310         }
1311
1312         mp = rte_mempool_create(
1313                         name,
1314                         nb_elts,
1315                         elt_size,
1316                         cache_size,
1317                         sizeof(struct rte_crypto_op_pool_private),
1318                         NULL,
1319                         NULL,
1320                         rte_crypto_op_init,
1321                         &type,
1322                         socket_id,
1323                         0);
1324
1325         if (mp == NULL) {
1326                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1327                 return NULL;
1328         }
1329
1330         priv = (struct rte_crypto_op_pool_private *)
1331                         rte_mempool_get_priv(mp);
1332
1333         priv->priv_size = priv_size;
1334         priv->type = type;
1335
1336         return mp;
1337 }
1338
1339 int
1340 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1341 {
1342         struct rte_cryptodev *dev = NULL;
1343         uint32_t i = 0;
1344
1345         if (name == NULL)
1346                 return -EINVAL;
1347
1348         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1349                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1350                                 "%s_%u", dev_name_prefix, i);
1351
1352                 if (ret < 0)
1353                         return ret;
1354
1355                 dev = rte_cryptodev_pmd_get_named_dev(name);
1356                 if (!dev)
1357                         return 0;
1358         }
1359
1360         return -1;
1361 }
1362
1363 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1364
1365 static struct cryptodev_driver_list cryptodev_driver_list =
1366         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1367
1368 int
1369 rte_cryptodev_driver_id_get(const char *name)
1370 {
1371         struct cryptodev_driver *driver;
1372         const char *driver_name;
1373
1374         if (name == NULL) {
1375                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1376                 return -1;
1377         }
1378
1379         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1380                 driver_name = driver->driver->name;
1381                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1382                         return driver->id;
1383         }
1384         return -1;
1385 }
1386
1387 const char *
1388 rte_cryptodev_name_get(uint8_t dev_id)
1389 {
1390         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1391
1392         if (dev == NULL)
1393                 return NULL;
1394
1395         return dev->data->name;
1396 }
1397
1398 const char *
1399 rte_cryptodev_driver_name_get(uint8_t driver_id)
1400 {
1401         struct cryptodev_driver *driver;
1402
1403         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1404                 if (driver->id == driver_id)
1405                         return driver->driver->name;
1406         return NULL;
1407 }
1408
1409 uint8_t
1410 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1411                 const struct rte_driver *drv)
1412 {
1413         crypto_drv->driver = drv;
1414         crypto_drv->id = nb_drivers;
1415
1416         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1417
1418         return nb_drivers++;
1419 }