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 aad_size,
 315                 uint16_t iv_size)
 316 {
 317         if (param_range_check(key_size, capability->auth.key_size))
 318                 return -1;
 319
 320         if (param_range_check(digest_size, capability->auth.digest_size))
 321                 return -1;
 322
 323         if (param_range_check(aad_size, capability->auth.aad_size))
 324                 return -1;
 325
 326         if (param_range_check(iv_size, capability->auth.iv_size))
 327                 return -1;
 328
 329         return 0;
 330 }
 331
 332 int
 333 rte_cryptodev_sym_capability_check_aead(
 334                 const struct rte_cryptodev_symmetric_capability *capability,
 335                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 336                 uint16_t iv_size)
 337 {
 338         if (param_range_check(key_size, capability->aead.key_size))
 339                 return -1;
 340
 341         if (param_range_check(digest_size, capability->aead.digest_size))
 342                 return -1;
 343
 344         if (param_range_check(aad_size, capability->aead.aad_size))
 345                 return -1;
 346
 347         if (param_range_check(iv_size, capability->aead.iv_size))
 348                 return -1;
 349
 350         return 0;
 351 }
 352
 353 const char *
 354 rte_cryptodev_get_feature_name(uint64_t flag)
 355 {
 356         switch (flag) {
 357         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 358                 return "SYMMETRIC_CRYPTO";
 359         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 360                 return "ASYMMETRIC_CRYPTO";
 361         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 362                 return "SYM_OPERATION_CHAINING";
 363         case RTE_CRYPTODEV_FF_CPU_SSE:
 364                 return "CPU_SSE";
 365         case RTE_CRYPTODEV_FF_CPU_AVX:
 366                 return "CPU_AVX";
 367         case RTE_CRYPTODEV_FF_CPU_AVX2:
 368                 return "CPU_AVX2";
 369         case RTE_CRYPTODEV_FF_CPU_AESNI:
 370                 return "CPU_AESNI";
 371         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 372                 return "HW_ACCELERATED";
 373         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 374                 return "MBUF_SCATTER_GATHER";
 375         case RTE_CRYPTODEV_FF_CPU_NEON:
 376                 return "CPU_NEON";
 377         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 378                 return "CPU_ARM_CE";
 379         default:
 380                 return NULL;
 381         }
 382 }
 383
 384 int
 385 rte_cryptodev_create_vdev(const char *name, const char *args)
 386 {
 387         return rte_vdev_init(name, args);
 388 }
 389
 390 struct rte_cryptodev *
 391 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 392 {
 393         return &rte_cryptodev_globals->devs[dev_id];
 394 }
 395
 396 struct rte_cryptodev *
 397 rte_cryptodev_pmd_get_named_dev(const char *name)
 398 {
 399         struct rte_cryptodev *dev;
 400         unsigned int i;
 401
 402         if (name == NULL)
 403                 return NULL;
 404
 405         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 406                 dev = &rte_cryptodev_globals->devs[i];
 407
 408                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 409                                 (strcmp(dev->data->name, name) == 0))
 410                         return dev;
 411         }
 412
 413         return NULL;
 414 }
 415
 416 unsigned int
 417 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 418 {
 419         struct rte_cryptodev *dev = NULL;
 420
 421         if (dev_id >= rte_cryptodev_globals->nb_devs)
 422                 return 0;
 423
 424         dev = rte_cryptodev_pmd_get_dev(dev_id);
 425         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 426                 return 0;
 427         else
 428                 return 1;
 429 }
 430
 431
 432 int
 433 rte_cryptodev_get_dev_id(const char *name)
 434 {
 435         unsigned i;
 436
 437         if (name == NULL)
 438                 return -1;
 439
 440         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 441                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 442                                 == 0) &&
 443                                 (rte_cryptodev_globals->devs[i].attached ==
 444                                                 RTE_CRYPTODEV_ATTACHED))
 445                         return i;
 446
 447         return -1;
 448 }
 449
 450 uint8_t
 451 rte_cryptodev_count(void)
 452 {
 453         return rte_cryptodev_globals->nb_devs;
 454 }
 455
 456 uint8_t
 457 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 458 {
 459         uint8_t i, dev_count = 0;
 460
 461         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 462                 if (rte_cryptodev_globals->devs[i].driver_id == driver_id &&
 463                         rte_cryptodev_globals->devs[i].attached ==
 464                                         RTE_CRYPTODEV_ATTACHED)
 465                         dev_count++;
 466
 467         return dev_count;
 468 }
 469
 470 uint8_t
 471 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 472         uint8_t nb_devices)
 473 {
 474         uint8_t i, count = 0;
 475         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 476         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 477
 478         for (i = 0; i < max_devs && count < nb_devices; i++) {
 479
 480                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 481                         int cmp;
 482
 483                         cmp = strncmp(devs[i].device->driver->name,
 484                                         driver_name,
 485                                         strlen(driver_name));
 486
 487                         if (cmp == 0)
 488                                 devices[count++] = devs[i].data->dev_id;
 489                 }
 490         }
 491
 492         return count;
 493 }
 494
 495 int
 496 rte_cryptodev_socket_id(uint8_t dev_id)
 497 {
 498         struct rte_cryptodev *dev;
 499
 500         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 501                 return -1;
 502
 503         dev = rte_cryptodev_pmd_get_dev(dev_id);
 504
 505         return dev->data->socket_id;
 506 }
 507
 508 static inline int
 509 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 510                 int socket_id)
 511 {
 512         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 513         const struct rte_memzone *mz;
 514         int n;
 515
 516         /* generate memzone name */
 517         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 518         if (n >= (int)sizeof(mz_name))
 519                 return -EINVAL;
 520
 521         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 522                 mz = rte_memzone_reserve(mz_name,
 523                                 sizeof(struct rte_cryptodev_data),
 524                                 socket_id, 0);
 525         } else
 526                 mz = rte_memzone_lookup(mz_name);
 527
 528         if (mz == NULL)
 529                 return -ENOMEM;
 530
 531         *data = mz->addr;
 532         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 533                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 534
 535         return 0;
 536 }
 537
 538 static uint8_t
 539 rte_cryptodev_find_free_device_index(void)
 540 {
 541         uint8_t dev_id;
 542
 543         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 544                 if (rte_crypto_devices[dev_id].attached ==
 545                                 RTE_CRYPTODEV_DETACHED)
 546                         return dev_id;
 547         }
 548         return RTE_CRYPTO_MAX_DEVS;
 549 }
 550
 551 struct rte_cryptodev *
 552 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 553 {
 554         struct rte_cryptodev *cryptodev;
 555         uint8_t dev_id;
 556
 557         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 558                 CDEV_LOG_ERR("Crypto device with name %s already "
 559                                 "allocated!", name);
 560                 return NULL;
 561         }
 562
 563         dev_id = rte_cryptodev_find_free_device_index();
 564         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 565                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 566                 return NULL;
 567         }
 568
 569         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 570
 571         if (cryptodev->data == NULL) {
 572                 struct rte_cryptodev_data *cryptodev_data =
 573                                 cryptodev_globals.data[dev_id];
 574
 575                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 576                                 socket_id);
 577
 578                 if (retval < 0 || cryptodev_data == NULL)
 579                         return NULL;
 580
 581                 cryptodev->data = cryptodev_data;
 582
 583                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 584                                 "%s", name);
 585
 586                 cryptodev->data->dev_id = dev_id;
 587                 cryptodev->data->socket_id = socket_id;
 588                 cryptodev->data->dev_started = 0;
 589
 590                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 591
 592                 cryptodev_globals.nb_devs++;
 593         }
 594
 595         return cryptodev;
 596 }
 597
 598 int
 599 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 600 {
 601         int ret;
 602
 603         if (cryptodev == NULL)
 604                 return -EINVAL;
 605
 606         /* Close device only if device operations have been set */
 607         if (cryptodev->dev_ops) {
 608                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 609                 if (ret < 0)
 610                         return ret;
 611         }
 612
 613         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 614         cryptodev_globals.nb_devs--;
 615         return 0;
 616 }
 617
 618 uint16_t
 619 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 620 {
 621         struct rte_cryptodev *dev;
 622
 623         dev = &rte_crypto_devices[dev_id];
 624         return dev->data->nb_queue_pairs;
 625 }
 626
 627 static int
 628 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 629                 int socket_id)
 630 {
 631         struct rte_cryptodev_info dev_info;
 632         void **qp;
 633         unsigned i;
 634
 635         if ((dev == NULL) || (nb_qpairs < 1)) {
 636                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 637                                                         dev, nb_qpairs);
 638                 return -EINVAL;
 639         }
 640
 641         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 642                         nb_qpairs, dev->data->dev_id);
 643
 644         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 645
 646         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 647         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 648
 649         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 650                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 651                                 nb_qpairs, dev->data->dev_id);
 652             return -EINVAL;
 653         }
 654
 655         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 656                 dev->data->queue_pairs = rte_zmalloc_socket(
 657                                 "cryptodev->queue_pairs",
 658                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 659                                 RTE_CACHE_LINE_SIZE, socket_id);
 660
 661                 if (dev->data->queue_pairs == NULL) {
 662                         dev->data->nb_queue_pairs = 0;
 663                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 664                                                         "nb_queues %u",
 665                                                         nb_qpairs);
 666                         return -(ENOMEM);
 667                 }
 668         } else { /* re-configure */
 669                 int ret;
 670                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 671
 672                 qp = dev->data->queue_pairs;
 673
 674                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 675                                 -ENOTSUP);
 676
 677                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 678                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 679                         if (ret < 0)
 680                                 return ret;
 681                 }
 682
 683                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 684                                 RTE_CACHE_LINE_SIZE);
 685                 if (qp == NULL) {
 686                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 687                                                 " nb_queues %u", nb_qpairs);
 688                         return -(ENOMEM);
 689                 }
 690
 691                 if (nb_qpairs > old_nb_queues) {
 692                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 693
 694                         memset(qp + old_nb_queues, 0,
 695                                 sizeof(qp[0]) * new_qs);
 696                 }
 697
 698                 dev->data->queue_pairs = qp;
 699
 700         }
 701         dev->data->nb_queue_pairs = nb_qpairs;
 702         return 0;
 703 }
 704
 705 int
 706 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 707 {
 708         struct rte_cryptodev *dev;
 709
 710         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 711                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 712                 return -EINVAL;
 713         }
 714
 715         dev = &rte_crypto_devices[dev_id];
 716         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 717                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 718                 return -EINVAL;
 719         }
 720
 721         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 722
 723         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 724
 725 }
 726
 727 int
 728 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 729 {
 730         struct rte_cryptodev *dev;
 731
 732         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 733                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 734                 return -EINVAL;
 735         }
 736
 737         dev = &rte_crypto_devices[dev_id];
 738         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 739                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 740                 return -EINVAL;
 741         }
 742
 743         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 744
 745         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 746
 747 }
 748
 749 int
 750 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config,
 751                 struct rte_mempool *session_pool)
 752 {
 753         struct rte_cryptodev *dev;
 754         int diag;
 755
 756         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 757                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 758                 return -EINVAL;
 759         }
 760
 761         dev = &rte_crypto_devices[dev_id];
 762
 763         if (dev->data->dev_started) {
 764                 CDEV_LOG_ERR(
 765                     "device %d must be stopped to allow configuration", dev_id);
 766                 return -EBUSY;
 767         }
 768
 769         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 770
 771         dev->data->session_pool = session_pool;
 772
 773         /* Setup new number of queue pairs and reconfigure device. */
 774         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 775                         config->socket_id);
 776         if (diag != 0) {
 777                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 778                                 dev_id, diag);
 779                 return diag;
 780         }
 781
 782         return (*dev->dev_ops->dev_configure)(dev, config);
 783 }
 784
 785
 786 int
 787 rte_cryptodev_start(uint8_t dev_id)
 788 {
 789         struct rte_cryptodev *dev;
 790         int diag;
 791
 792         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 793
 794         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 795                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 796                 return -EINVAL;
 797         }
 798
 799         dev = &rte_crypto_devices[dev_id];
 800
 801         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 802
 803         if (dev->data->dev_started != 0) {
 804                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 805                         dev_id);
 806                 return 0;
 807         }
 808
 809         diag = (*dev->dev_ops->dev_start)(dev);
 810         if (diag == 0)
 811                 dev->data->dev_started = 1;
 812         else
 813                 return diag;
 814
 815         return 0;
 816 }
 817
 818 void
 819 rte_cryptodev_stop(uint8_t dev_id)
 820 {
 821         struct rte_cryptodev *dev;
 822
 823         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 824                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 825                 return;
 826         }
 827
 828         dev = &rte_crypto_devices[dev_id];
 829
 830         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 831
 832         if (dev->data->dev_started == 0) {
 833                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 834                         dev_id);
 835                 return;
 836         }
 837
 838         (*dev->dev_ops->dev_stop)(dev);
 839         dev->data->dev_started = 0;
 840 }
 841
 842 int
 843 rte_cryptodev_close(uint8_t dev_id)
 844 {
 845         struct rte_cryptodev *dev;
 846         int retval;
 847
 848         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 849                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 850                 return -1;
 851         }
 852
 853         dev = &rte_crypto_devices[dev_id];
 854
 855         /* Device must be stopped before it can be closed */
 856         if (dev->data->dev_started == 1) {
 857                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 858                                 dev_id);
 859                 return -EBUSY;
 860         }
 861
 862         /* We can't close the device if there are outstanding sessions in use */
 863         if (dev->data->session_pool != NULL) {
 864                 if (!rte_mempool_full(dev->data->session_pool)) {
 865                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 866                                         "has sessions still in use, free "
 867                                         "all sessions before calling close",
 868                                         (unsigned)dev_id);
 869                         return -EBUSY;
 870                 }
 871         }
 872
 873         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 874         retval = (*dev->dev_ops->dev_close)(dev);
 875
 876         if (retval < 0)
 877                 return retval;
 878
 879         return 0;
 880 }
 881
 882 int
 883 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 884                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 885 {
 886         struct rte_cryptodev *dev;
 887
 888         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 889                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 890                 return -EINVAL;
 891         }
 892
 893         dev = &rte_crypto_devices[dev_id];
 894         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 895                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 896                 return -EINVAL;
 897         }
 898
 899         if (dev->data->dev_started) {
 900                 CDEV_LOG_ERR(
 901                     "device %d must be stopped to allow configuration", dev_id);
 902                 return -EBUSY;
 903         }
 904
 905         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 906
 907         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 908                         socket_id);
 909 }
 910
 911
 912 int
 913 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 914 {
 915         struct rte_cryptodev *dev;
 916
 917         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 918                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 919                 return -ENODEV;
 920         }
 921
 922         if (stats == NULL) {
 923                 CDEV_LOG_ERR("Invalid stats ptr");
 924                 return -EINVAL;
 925         }
 926
 927         dev = &rte_crypto_devices[dev_id];
 928         memset(stats, 0, sizeof(*stats));
 929
 930         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 931         (*dev->dev_ops->stats_get)(dev, stats);
 932         return 0;
 933 }
 934
 935 void
 936 rte_cryptodev_stats_reset(uint8_t dev_id)
 937 {
 938         struct rte_cryptodev *dev;
 939
 940         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 941                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 942                 return;
 943         }
 944
 945         dev = &rte_crypto_devices[dev_id];
 946
 947         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 948         (*dev->dev_ops->stats_reset)(dev);
 949 }
 950
 951
 952 void
 953 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 954 {
 955         struct rte_cryptodev *dev;
 956
 957         if (dev_id >= cryptodev_globals.nb_devs) {
 958                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 959                 return;
 960         }
 961
 962         dev = &rte_crypto_devices[dev_id];
 963
 964         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 965
 966         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 967         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 968
 969         dev_info->driver_name = dev->device->driver->name;
 970 }
 971
 972
 973 int
 974 rte_cryptodev_callback_register(uint8_t dev_id,
 975                         enum rte_cryptodev_event_type event,
 976                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 977 {
 978         struct rte_cryptodev *dev;
 979         struct rte_cryptodev_callback *user_cb;
 980
 981         if (!cb_fn)
 982                 return -EINVAL;
 983
 984         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 985                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 986                 return -EINVAL;
 987         }
 988
 989         dev = &rte_crypto_devices[dev_id];
 990         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 991
 992         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 993                 if (user_cb->cb_fn == cb_fn &&
 994                         user_cb->cb_arg == cb_arg &&
 995                         user_cb->event == event) {
 996                         break;
 997                 }
 998         }
 999
1000         /* create a new callback. */
1001         if (user_cb == NULL) {
1002                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1003                                 sizeof(struct rte_cryptodev_callback), 0);
1004                 if (user_cb != NULL) {
1005                         user_cb->cb_fn = cb_fn;
1006                         user_cb->cb_arg = cb_arg;
1007                         user_cb->event = event;
1008                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1009                 }
1010         }
1011
1012         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1013         return (user_cb == NULL) ? -ENOMEM : 0;
1014 }
1015
1016 int
1017 rte_cryptodev_callback_unregister(uint8_t dev_id,
1018                         enum rte_cryptodev_event_type event,
1019                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1020 {
1021         int ret;
1022         struct rte_cryptodev *dev;
1023         struct rte_cryptodev_callback *cb, *next;
1024
1025         if (!cb_fn)
1026                 return -EINVAL;
1027
1028         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1029                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1030                 return -EINVAL;
1031         }
1032
1033         dev = &rte_crypto_devices[dev_id];
1034         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1035
1036         ret = 0;
1037         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1038
1039                 next = TAILQ_NEXT(cb, next);
1040
1041                 if (cb->cb_fn != cb_fn || cb->event != event ||
1042                                 (cb->cb_arg != (void *)-1 &&
1043                                 cb->cb_arg != cb_arg))
1044                         continue;
1045
1046                 /*
1047                  * if this callback is not executing right now,
1048                  * then remove it.
1049                  */
1050                 if (cb->active == 0) {
1051                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1052                         rte_free(cb);
1053                 } else {
1054                         ret = -EAGAIN;
1055                 }
1056         }
1057
1058         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1059         return ret;
1060 }
1061
1062 void
1063 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1064         enum rte_cryptodev_event_type event)
1065 {
1066         struct rte_cryptodev_callback *cb_lst;
1067         struct rte_cryptodev_callback dev_cb;
1068
1069         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1070         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1071                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1072                         continue;
1073                 dev_cb = *cb_lst;
1074                 cb_lst->active = 1;
1075                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1076                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1077                                                 dev_cb.cb_arg);
1078                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1079                 cb_lst->active = 0;
1080         }
1081         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1082 }
1083
1084
1085 int
1086 rte_cryptodev_sym_session_init(uint8_t dev_id,
1087                 struct rte_cryptodev_sym_session *sess,
1088                 struct rte_crypto_sym_xform *xforms,
1089                 struct rte_mempool *mp)
1090 {
1091         struct rte_cryptodev *dev;
1092         uint8_t index;
1093
1094         dev = rte_cryptodev_pmd_get_dev(dev_id);
1095
1096         if (sess == NULL || xforms == NULL || dev == NULL)
1097                 return -1;
1098
1099         index = dev->driver_id;
1100
1101         if (sess->sess_private_data[index] == NULL) {
1102                 if (dev->dev_ops->session_configure(dev, xforms, sess, mp) < 0) {
1103                         CDEV_LOG_ERR(
1104                                 "dev_id %d failed to configure session details",
1105                                 dev_id);
1106                         return -1;
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 struct cryptodev_driver {
1369         TAILQ_ENTRY(cryptodev_driver) next; /**< Next in list. */
1370         const struct rte_driver *driver;
1371         uint8_t id;
1372 };
1373
1374 int
1375 rte_cryptodev_driver_id_get(const char *name)
1376 {
1377         struct cryptodev_driver *driver;
1378         const char *driver_name;
1379
1380         if (name == NULL) {
1381                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1382                 return -1;
1383         }
1384
1385         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1386                 driver_name = driver->driver->name;
1387                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1388                         return driver->id;
1389         }
1390         return -1;
1391 }
1392
1393 const char *
1394 rte_cryptodev_driver_name_get(uint8_t driver_id)
1395 {
1396         struct cryptodev_driver *driver;
1397
1398         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1399                 if (driver->id == driver_id)
1400                         return driver->driver->name;
1401         return NULL;
1402 }
1403
1404 uint8_t
1405 rte_cryptodev_allocate_driver(const struct rte_driver *drv)
1406 {
1407         struct cryptodev_driver *driver;
1408
1409         driver = malloc(sizeof(*driver));
1410         driver->driver = drv;
1411         driver->id = nb_drivers;
1412
1413         TAILQ_INSERT_TAIL(&cryptodev_driver_list, driver, next);
1414
1415         return nb_drivers++;
1416 }