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_pci.h>
  51 #include <rte_memory.h>
  52 #include <rte_memcpy.h>
  53 #include <rte_memzone.h>
  54 #include <rte_launch.h>
  55 #include <rte_tailq.h>
  56 #include <rte_eal.h>
  57 #include <rte_per_lcore.h>
  58 #include <rte_lcore.h>
  59 #include <rte_atomic.h>
  60 #include <rte_branch_prediction.h>
  61 #include <rte_common.h>
  62 #include <rte_mempool.h>
  63 #include <rte_malloc.h>
  64 #include <rte_mbuf.h>
  65 #include <rte_errno.h>
  66 #include <rte_spinlock.h>
  67 #include <rte_string_fns.h>
  68
  69 #include "rte_crypto.h"
  70 #include "rte_cryptodev.h"
  71 #include "rte_cryptodev_pmd.h"
  72
  73 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  74
  75 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  76
  77 static struct rte_cryptodev_global cryptodev_globals = {
  78                 .devs                   = &rte_crypto_devices[0],
  79                 .data                   = { NULL },
  80                 .nb_devs                = 0,
  81                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  82 };
  83
  84 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  85
  86 /* spinlock for crypto device callbacks */
  87 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  88
  89
  90 /**
  91  * The user application callback description.
  92  *
  93  * It contains callback address to be registered by user application,
  94  * the pointer to the parameters for callback, and the event type.
  95  */
  96 struct rte_cryptodev_callback {
  97         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  98         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
  99         void *cb_arg;                           /**< Parameter for callback */
 100         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
 101         uint32_t active;                        /**< Callback is executing */
 102 };
 103
 104 #define RTE_CRYPTODEV_VDEV_NAME                         ("name")
 105 #define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG                ("max_nb_queue_pairs")
 106 #define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG              ("max_nb_sessions")
 107 #define RTE_CRYPTODEV_VDEV_SOCKET_ID                    ("socket_id")
 108
 109 static const char *cryptodev_vdev_valid_params[] = {
 110         RTE_CRYPTODEV_VDEV_NAME,
 111         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 112         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 113         RTE_CRYPTODEV_VDEV_SOCKET_ID
 114 };
 115
 116 /**
 117  * The crypto cipher algorithm strings identifiers.
 118  * It could be used in application command line.
 119  */
 120 const char *
 121 rte_crypto_cipher_algorithm_strings[] = {
 122         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
 123         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
 124         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
 125
 126         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
 127         [RTE_CRYPTO_CIPHER_AES_CCM]     = "aes-ccm",
 128         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
 129         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
 130         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
 131         [RTE_CRYPTO_CIPHER_AES_GCM]     = "aes-gcm",
 132         [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
 133         [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",
 134
 135         [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",
 136
 137         [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
 138         [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",
 139
 140         [RTE_CRYPTO_CIPHER_NULL]        = "null",
 141
 142         [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
 143         [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
 144         [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
 145 };
 146
 147 /**
 148  * The crypto cipher operation strings identifiers.
 149  * It could be used in application command line.
 150  */
 151 const char *
 152 rte_crypto_cipher_operation_strings[] = {
 153                 [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
 154                 [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
 155 };
 156
 157 /**
 158  * The crypto auth algorithm strings identifiers.
 159  * It could be used in application command line.
 160  */
 161 const char *
 162 rte_crypto_auth_algorithm_strings[] = {
 163         [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
 164         [RTE_CRYPTO_AUTH_AES_CCM]       = "aes-ccm",
 165         [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
 166         [RTE_CRYPTO_AUTH_AES_GCM]       = "aes-gcm",
 167         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 168         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 169
 170         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 171         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 172
 173         [RTE_CRYPTO_AUTH_NULL]          = "null",
 174
 175         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 176         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 177
 178         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 179         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 180         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 181         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 182         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 183         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 184         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 185         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 186
 187         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 188         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 189         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 190 };
 191
 192 int
 193 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 194                 const char *algo_string)
 195 {
 196         unsigned int i;
 197
 198         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 199                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 200                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 201                         return 0;
 202                 }
 203         }
 204
 205         /* Invalid string */
 206         return -1;
 207 }
 208
 209 int
 210 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 211                 const char *algo_string)
 212 {
 213         unsigned int i;
 214
 215         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 216                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 217                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 218                         return 0;
 219                 }
 220         }
 221
 222         /* Invalid string */
 223         return -1;
 224 }
 225
 226 /**
 227  * The crypto auth operation strings identifiers.
 228  * It could be used in application command line.
 229  */
 230 const char *
 231 rte_crypto_auth_operation_strings[] = {
 232                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 233                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 234 };
 235
 236 /** Parse integer from integer argument */
 237 static int
 238 parse_integer_arg(const char *key __rte_unused,
 239                 const char *value, void *extra_args)
 240 {
 241         int *i = extra_args;
 242
 243         *i = atoi(value);
 244         if (*i < 0) {
 245                 CDEV_LOG_ERR("Argument has to be positive.");
 246                 return -1;
 247         }
 248
 249         return 0;
 250 }
 251
 252 /** Parse name */
 253 static int
 254 parse_name_arg(const char *key __rte_unused,
 255                 const char *value, void *extra_args)
 256 {
 257         struct rte_crypto_vdev_init_params *params = extra_args;
 258
 259         if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
 260                 CDEV_LOG_ERR("Invalid name %s, should be less than "
 261                                 "%u bytes", value,
 262                                 RTE_CRYPTODEV_NAME_MAX_LEN - 1);
 263                 return -1;
 264         }
 265
 266         strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
 267
 268         return 0;
 269 }
 270
 271 int
 272 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
 273                 const char *input_args)
 274 {
 275         struct rte_kvargs *kvlist = NULL;
 276         int ret = 0;
 277
 278         if (params == NULL)
 279                 return -EINVAL;
 280
 281         if (input_args) {
 282                 kvlist = rte_kvargs_parse(input_args,
 283                                 cryptodev_vdev_valid_params);
 284                 if (kvlist == NULL)
 285                         return -1;
 286
 287                 ret = rte_kvargs_process(kvlist,
 288                                         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 289                                         &parse_integer_arg,
 290                                         &params->max_nb_queue_pairs);
 291                 if (ret < 0)
 292                         goto free_kvlist;
 293
 294                 ret = rte_kvargs_process(kvlist,
 295                                         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 296                                         &parse_integer_arg,
 297                                         &params->max_nb_sessions);
 298                 if (ret < 0)
 299                         goto free_kvlist;
 300
 301                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 302                                         &parse_integer_arg,
 303                                         &params->socket_id);
 304                 if (ret < 0)
 305                         goto free_kvlist;
 306
 307                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
 308                                         &parse_name_arg,
 309                                         params);
 310                 if (ret < 0)
 311                         goto free_kvlist;
 312         }
 313
 314 free_kvlist:
 315         rte_kvargs_free(kvlist);
 316         return ret;
 317 }
 318
 319 const struct rte_cryptodev_symmetric_capability *
 320 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 321                 const struct rte_cryptodev_sym_capability_idx *idx)
 322 {
 323         const struct rte_cryptodev_capabilities *capability;
 324         struct rte_cryptodev_info dev_info;
 325         int i = 0;
 326
 327         rte_cryptodev_info_get(dev_id, &dev_info);
 328
 329         while ((capability = &dev_info.capabilities[i++])->op !=
 330                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 331                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 332                         continue;
 333
 334                 if (capability->sym.xform_type != idx->type)
 335                         continue;
 336
 337                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 338                         capability->sym.auth.algo == idx->algo.auth)
 339                         return &capability->sym;
 340
 341                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 342                         capability->sym.cipher.algo == idx->algo.cipher)
 343                         return &capability->sym;
 344         }
 345
 346         return NULL;
 347
 348 }
 349
 350 #define param_range_check(x, y) \
 351         (((x < y.min) || (x > y.max)) || \
 352         (y.increment != 0 && (x % y.increment) != 0))
 353
 354 int
 355 rte_cryptodev_sym_capability_check_cipher(
 356                 const struct rte_cryptodev_symmetric_capability *capability,
 357                 uint16_t key_size, uint16_t iv_size)
 358 {
 359         if (param_range_check(key_size, capability->cipher.key_size))
 360                 return -1;
 361
 362         if (param_range_check(iv_size, capability->cipher.iv_size))
 363                 return -1;
 364
 365         return 0;
 366 }
 367
 368 int
 369 rte_cryptodev_sym_capability_check_auth(
 370                 const struct rte_cryptodev_symmetric_capability *capability,
 371                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size)
 372 {
 373         if (param_range_check(key_size, capability->auth.key_size))
 374                 return -1;
 375
 376         if (param_range_check(digest_size, capability->auth.digest_size))
 377                 return -1;
 378
 379         if (param_range_check(aad_size, capability->auth.aad_size))
 380                 return -1;
 381
 382         return 0;
 383 }
 384
 385
 386 const char *
 387 rte_cryptodev_get_feature_name(uint64_t flag)
 388 {
 389         switch (flag) {
 390         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 391                 return "SYMMETRIC_CRYPTO";
 392         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 393                 return "ASYMMETRIC_CRYPTO";
 394         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 395                 return "SYM_OPERATION_CHAINING";
 396         case RTE_CRYPTODEV_FF_CPU_SSE:
 397                 return "CPU_SSE";
 398         case RTE_CRYPTODEV_FF_CPU_AVX:
 399                 return "CPU_AVX";
 400         case RTE_CRYPTODEV_FF_CPU_AVX2:
 401                 return "CPU_AVX2";
 402         case RTE_CRYPTODEV_FF_CPU_AESNI:
 403                 return "CPU_AESNI";
 404         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 405                 return "HW_ACCELERATED";
 406         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 407                 return "MBUF_SCATTER_GATHER";
 408         case RTE_CRYPTODEV_FF_CPU_NEON:
 409                 return "CPU_NEON";
 410         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 411                 return "CPU_ARM_CE";
 412         default:
 413                 return NULL;
 414         }
 415 }
 416
 417 int
 418 rte_cryptodev_create_vdev(const char *name, const char *args)
 419 {
 420         return rte_vdev_init(name, args);
 421 }
 422
 423 struct rte_cryptodev *
 424 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 425 {
 426         return &rte_cryptodev_globals->devs[dev_id];
 427 }
 428
 429 struct rte_cryptodev *
 430 rte_cryptodev_pmd_get_named_dev(const char *name)
 431 {
 432         struct rte_cryptodev *dev;
 433         unsigned int i;
 434
 435         if (name == NULL)
 436                 return NULL;
 437
 438         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 439                 dev = &rte_cryptodev_globals->devs[i];
 440
 441                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 442                                 (strcmp(dev->data->name, name) == 0))
 443                         return dev;
 444         }
 445
 446         return NULL;
 447 }
 448
 449 unsigned int
 450 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 451 {
 452         struct rte_cryptodev *dev = NULL;
 453
 454         if (dev_id >= rte_cryptodev_globals->nb_devs)
 455                 return 0;
 456
 457         dev = rte_cryptodev_pmd_get_dev(dev_id);
 458         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 459                 return 0;
 460         else
 461                 return 1;
 462 }
 463
 464
 465 int
 466 rte_cryptodev_get_dev_id(const char *name)
 467 {
 468         unsigned i;
 469
 470         if (name == NULL)
 471                 return -1;
 472
 473         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 474                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 475                                 == 0) &&
 476                                 (rte_cryptodev_globals->devs[i].attached ==
 477                                                 RTE_CRYPTODEV_ATTACHED))
 478                         return i;
 479
 480         return -1;
 481 }
 482
 483 uint8_t
 484 rte_cryptodev_count(void)
 485 {
 486         return rte_cryptodev_globals->nb_devs;
 487 }
 488
 489 uint8_t
 490 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 491 {
 492         uint8_t i, dev_count = 0;
 493
 494         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 495                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 496                         rte_cryptodev_globals->devs[i].attached ==
 497                                         RTE_CRYPTODEV_ATTACHED)
 498                         dev_count++;
 499
 500         return dev_count;
 501 }
 502
 503 uint8_t
 504 rte_cryptodev_devices_get(const char *dev_name, uint8_t *devices,
 505         uint8_t nb_devices)
 506 {
 507         uint8_t i, count = 0;
 508         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 509         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 510
 511         for (i = 0; i < max_devs && count < nb_devices; i++) {
 512
 513                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 514                         const struct rte_cryptodev_driver *drv = devs[i].driver;
 515                         int cmp;
 516
 517                         if (drv)
 518                                 cmp = strncmp(drv->pci_drv.driver.name,
 519                                                 dev_name, strlen(dev_name));
 520                         else
 521                                 cmp = strncmp(devs[i].data->name,
 522                                                 dev_name, strlen(dev_name));
 523
 524                         if (cmp == 0)
 525                                 devices[count++] = devs[i].data->dev_id;
 526                 }
 527         }
 528
 529         return count;
 530 }
 531
 532 int
 533 rte_cryptodev_socket_id(uint8_t dev_id)
 534 {
 535         struct rte_cryptodev *dev;
 536
 537         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 538                 return -1;
 539
 540         dev = rte_cryptodev_pmd_get_dev(dev_id);
 541
 542         return dev->data->socket_id;
 543 }
 544
 545 static inline int
 546 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 547                 int socket_id)
 548 {
 549         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 550         const struct rte_memzone *mz;
 551         int n;
 552
 553         /* generate memzone name */
 554         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 555         if (n >= (int)sizeof(mz_name))
 556                 return -EINVAL;
 557
 558         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 559                 mz = rte_memzone_reserve(mz_name,
 560                                 sizeof(struct rte_cryptodev_data),
 561                                 socket_id, 0);
 562         } else
 563                 mz = rte_memzone_lookup(mz_name);
 564
 565         if (mz == NULL)
 566                 return -ENOMEM;
 567
 568         *data = mz->addr;
 569         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 570                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 571
 572         return 0;
 573 }
 574
 575 static uint8_t
 576 rte_cryptodev_find_free_device_index(void)
 577 {
 578         uint8_t dev_id;
 579
 580         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 581                 if (rte_crypto_devices[dev_id].attached ==
 582                                 RTE_CRYPTODEV_DETACHED)
 583                         return dev_id;
 584         }
 585         return RTE_CRYPTO_MAX_DEVS;
 586 }
 587
 588 struct rte_cryptodev *
 589 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 590 {
 591         struct rte_cryptodev *cryptodev;
 592         uint8_t dev_id;
 593
 594         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 595                 CDEV_LOG_ERR("Crypto device with name %s already "
 596                                 "allocated!", name);
 597                 return NULL;
 598         }
 599
 600         dev_id = rte_cryptodev_find_free_device_index();
 601         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 602                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 603                 return NULL;
 604         }
 605
 606         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 607
 608         if (cryptodev->data == NULL) {
 609                 struct rte_cryptodev_data *cryptodev_data =
 610                                 cryptodev_globals.data[dev_id];
 611
 612                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 613                                 socket_id);
 614
 615                 if (retval < 0 || cryptodev_data == NULL)
 616                         return NULL;
 617
 618                 cryptodev->data = cryptodev_data;
 619
 620                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 621                                 "%s", name);
 622
 623                 cryptodev->data->dev_id = dev_id;
 624                 cryptodev->data->socket_id = socket_id;
 625                 cryptodev->data->dev_started = 0;
 626
 627                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 628
 629                 cryptodev_globals.nb_devs++;
 630         }
 631
 632         return cryptodev;
 633 }
 634
 635 int
 636 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 637 {
 638         int ret;
 639
 640         if (cryptodev == NULL)
 641                 return -EINVAL;
 642
 643         ret = rte_cryptodev_close(cryptodev->data->dev_id);
 644         if (ret < 0)
 645                 return ret;
 646
 647         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 648         cryptodev_globals.nb_devs--;
 649         return 0;
 650 }
 651
 652 struct rte_cryptodev *
 653 rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 654                 int socket_id)
 655 {
 656         struct rte_cryptodev *cryptodev;
 657
 658         /* allocate device structure */
 659         cryptodev = rte_cryptodev_pmd_allocate(name, socket_id);
 660         if (cryptodev == NULL)
 661                 return NULL;
 662
 663         /* allocate private device structure */
 664         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 665                 cryptodev->data->dev_private =
 666                                 rte_zmalloc_socket("cryptodev device private",
 667                                                 dev_private_size,
 668                                                 RTE_CACHE_LINE_SIZE,
 669                                                 socket_id);
 670
 671                 if (cryptodev->data->dev_private == NULL)
 672                         rte_panic("Cannot allocate memzone for private device"
 673                                         " data");
 674         }
 675
 676         /* initialise user call-back tail queue */
 677         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 678
 679         return cryptodev;
 680 }
 681
 682 int
 683 rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
 684                         struct rte_pci_device *pci_dev)
 685 {
 686         struct rte_cryptodev_driver *cryptodrv;
 687         struct rte_cryptodev *cryptodev;
 688
 689         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 690
 691         int retval;
 692
 693         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 694         if (cryptodrv == NULL)
 695                 return -ENODEV;
 696
 697         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 698                         sizeof(cryptodev_name));
 699
 700         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
 701         if (cryptodev == NULL)
 702                 return -ENOMEM;
 703
 704         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 705                 cryptodev->data->dev_private =
 706                                 rte_zmalloc_socket(
 707                                                 "cryptodev private structure",
 708                                                 cryptodrv->dev_private_size,
 709                                                 RTE_CACHE_LINE_SIZE,
 710                                                 rte_socket_id());
 711
 712                 if (cryptodev->data->dev_private == NULL)
 713                         rte_panic("Cannot allocate memzone for private "
 714                                         "device data");
 715         }
 716
 717         cryptodev->device = &pci_dev->device;
 718         cryptodev->driver = cryptodrv;
 719
 720         /* init user callbacks */
 721         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 722
 723         /* Invoke PMD device initialization function */
 724         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 725         if (retval == 0)
 726                 return 0;
 727
 728         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 729                         " failed", pci_drv->driver.name,
 730                         (unsigned) pci_dev->id.vendor_id,
 731                         (unsigned) pci_dev->id.device_id);
 732
 733         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 734                 rte_free(cryptodev->data->dev_private);
 735
 736         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 737         cryptodev_globals.nb_devs--;
 738
 739         return -ENXIO;
 740 }
 741
 742 int
 743 rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 744 {
 745         const struct rte_cryptodev_driver *cryptodrv;
 746         struct rte_cryptodev *cryptodev;
 747         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 748         int ret;
 749
 750         if (pci_dev == NULL)
 751                 return -EINVAL;
 752
 753         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 754                         sizeof(cryptodev_name));
 755
 756         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 757         if (cryptodev == NULL)
 758                 return -ENODEV;
 759
 760         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 761         if (cryptodrv == NULL)
 762                 return -ENODEV;
 763
 764         /* Invoke PMD device uninit function */
 765         if (*cryptodrv->cryptodev_uninit) {
 766                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 767                 if (ret)
 768                         return ret;
 769         }
 770
 771         /* free crypto device */
 772         rte_cryptodev_pmd_release_device(cryptodev);
 773
 774         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 775                 rte_free(cryptodev->data->dev_private);
 776
 777         cryptodev->device = NULL;
 778         cryptodev->driver = NULL;
 779         cryptodev->data = NULL;
 780
 781         return 0;
 782 }
 783
 784 uint16_t
 785 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 786 {
 787         struct rte_cryptodev *dev;
 788
 789         dev = &rte_crypto_devices[dev_id];
 790         return dev->data->nb_queue_pairs;
 791 }
 792
 793 static int
 794 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 795                 int socket_id)
 796 {
 797         struct rte_cryptodev_info dev_info;
 798         void **qp;
 799         unsigned i;
 800
 801         if ((dev == NULL) || (nb_qpairs < 1)) {
 802                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 803                                                         dev, nb_qpairs);
 804                 return -EINVAL;
 805         }
 806
 807         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 808                         nb_qpairs, dev->data->dev_id);
 809
 810         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 811
 812         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 813         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 814
 815         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 816                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 817                                 nb_qpairs, dev->data->dev_id);
 818             return -EINVAL;
 819         }
 820
 821         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 822                 dev->data->queue_pairs = rte_zmalloc_socket(
 823                                 "cryptodev->queue_pairs",
 824                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 825                                 RTE_CACHE_LINE_SIZE, socket_id);
 826
 827                 if (dev->data->queue_pairs == NULL) {
 828                         dev->data->nb_queue_pairs = 0;
 829                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 830                                                         "nb_queues %u",
 831                                                         nb_qpairs);
 832                         return -(ENOMEM);
 833                 }
 834         } else { /* re-configure */
 835                 int ret;
 836                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 837
 838                 qp = dev->data->queue_pairs;
 839
 840                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 841                                 -ENOTSUP);
 842
 843                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 844                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 845                         if (ret < 0)
 846                                 return ret;
 847                 }
 848
 849                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 850                                 RTE_CACHE_LINE_SIZE);
 851                 if (qp == NULL) {
 852                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 853                                                 " nb_queues %u", nb_qpairs);
 854                         return -(ENOMEM);
 855                 }
 856
 857                 if (nb_qpairs > old_nb_queues) {
 858                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 859
 860                         memset(qp + old_nb_queues, 0,
 861                                 sizeof(qp[0]) * new_qs);
 862                 }
 863
 864                 dev->data->queue_pairs = qp;
 865
 866         }
 867         dev->data->nb_queue_pairs = nb_qpairs;
 868         return 0;
 869 }
 870
 871 int
 872 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 873 {
 874         struct rte_cryptodev *dev;
 875
 876         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 877                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 878                 return -EINVAL;
 879         }
 880
 881         dev = &rte_crypto_devices[dev_id];
 882         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 883                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 884                 return -EINVAL;
 885         }
 886
 887         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 888
 889         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 890
 891 }
 892
 893 int
 894 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 895 {
 896         struct rte_cryptodev *dev;
 897
 898         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 899                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 900                 return -EINVAL;
 901         }
 902
 903         dev = &rte_crypto_devices[dev_id];
 904         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 905                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 906                 return -EINVAL;
 907         }
 908
 909         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 910
 911         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 912
 913 }
 914
 915 static int
 916 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 917                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 918
 919 int
 920 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 921 {
 922         struct rte_cryptodev *dev;
 923         int diag;
 924
 925         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 926                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 927                 return -EINVAL;
 928         }
 929
 930         dev = &rte_crypto_devices[dev_id];
 931
 932         if (dev->data->dev_started) {
 933                 CDEV_LOG_ERR(
 934                     "device %d must be stopped to allow configuration", dev_id);
 935                 return -EBUSY;
 936         }
 937
 938         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 939
 940         /* Setup new number of queue pairs and reconfigure device. */
 941         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 942                         config->socket_id);
 943         if (diag != 0) {
 944                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 945                                 dev_id, diag);
 946                 return diag;
 947         }
 948
 949         /* Setup Session mempool for device */
 950         diag = rte_cryptodev_sym_session_pool_create(dev,
 951                         config->session_mp.nb_objs,
 952                         config->session_mp.cache_size,
 953                         config->socket_id);
 954         if (diag != 0)
 955                 return diag;
 956
 957         return (*dev->dev_ops->dev_configure)(dev, config);
 958 }
 959
 960
 961 int
 962 rte_cryptodev_start(uint8_t dev_id)
 963 {
 964         struct rte_cryptodev *dev;
 965         int diag;
 966
 967         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 968
 969         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 970                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 971                 return -EINVAL;
 972         }
 973
 974         dev = &rte_crypto_devices[dev_id];
 975
 976         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 977
 978         if (dev->data->dev_started != 0) {
 979                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 980                         dev_id);
 981                 return 0;
 982         }
 983
 984         diag = (*dev->dev_ops->dev_start)(dev);
 985         if (diag == 0)
 986                 dev->data->dev_started = 1;
 987         else
 988                 return diag;
 989
 990         return 0;
 991 }
 992
 993 void
 994 rte_cryptodev_stop(uint8_t dev_id)
 995 {
 996         struct rte_cryptodev *dev;
 997
 998         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 999                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1000                 return;
1001         }
1002
1003         dev = &rte_crypto_devices[dev_id];
1004
1005         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
1006
1007         if (dev->data->dev_started == 0) {
1008                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
1009                         dev_id);
1010                 return;
1011         }
1012
1013         dev->data->dev_started = 0;
1014         (*dev->dev_ops->dev_stop)(dev);
1015 }
1016
1017 int
1018 rte_cryptodev_close(uint8_t dev_id)
1019 {
1020         struct rte_cryptodev *dev;
1021         int retval;
1022
1023         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1024                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1025                 return -1;
1026         }
1027
1028         dev = &rte_crypto_devices[dev_id];
1029
1030         /* Device must be stopped before it can be closed */
1031         if (dev->data->dev_started == 1) {
1032                 CDEV_LOG_ERR("Device %u must be stopped before closing",
1033                                 dev_id);
1034                 return -EBUSY;
1035         }
1036
1037         /* We can't close the device if there are outstanding sessions in use */
1038         if (dev->data->session_pool != NULL) {
1039                 if (!rte_mempool_full(dev->data->session_pool)) {
1040                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
1041                                         "has sessions still in use, free "
1042                                         "all sessions before calling close",
1043                                         (unsigned)dev_id);
1044                         return -EBUSY;
1045                 }
1046         }
1047
1048         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
1049         retval = (*dev->dev_ops->dev_close)(dev);
1050
1051         if (retval < 0)
1052                 return retval;
1053
1054         return 0;
1055 }
1056
1057 int
1058 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
1059                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
1060 {
1061         struct rte_cryptodev *dev;
1062
1063         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1064                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1065                 return -EINVAL;
1066         }
1067
1068         dev = &rte_crypto_devices[dev_id];
1069         if (queue_pair_id >= dev->data->nb_queue_pairs) {
1070                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
1071                 return -EINVAL;
1072         }
1073
1074         if (dev->data->dev_started) {
1075                 CDEV_LOG_ERR(
1076                     "device %d must be stopped to allow configuration", dev_id);
1077                 return -EBUSY;
1078         }
1079
1080         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
1081
1082         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
1083                         socket_id);
1084 }
1085
1086
1087 int
1088 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
1089 {
1090         struct rte_cryptodev *dev;
1091
1092         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1093                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1094                 return -ENODEV;
1095         }
1096
1097         if (stats == NULL) {
1098                 CDEV_LOG_ERR("Invalid stats ptr");
1099                 return -EINVAL;
1100         }
1101
1102         dev = &rte_crypto_devices[dev_id];
1103         memset(stats, 0, sizeof(*stats));
1104
1105         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1106         (*dev->dev_ops->stats_get)(dev, stats);
1107         return 0;
1108 }
1109
1110 void
1111 rte_cryptodev_stats_reset(uint8_t dev_id)
1112 {
1113         struct rte_cryptodev *dev;
1114
1115         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1116                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1117                 return;
1118         }
1119
1120         dev = &rte_crypto_devices[dev_id];
1121
1122         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1123         (*dev->dev_ops->stats_reset)(dev);
1124 }
1125
1126
1127 void
1128 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1129 {
1130         struct rte_cryptodev *dev;
1131
1132         if (dev_id >= cryptodev_globals.nb_devs) {
1133                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1134                 return;
1135         }
1136
1137         dev = &rte_crypto_devices[dev_id];
1138
1139         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1140
1141         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1142         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1143
1144         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
1145         if (dev->driver)
1146                 dev_info->driver_name = dev->driver->pci_drv.driver.name;
1147 }
1148
1149
1150 int
1151 rte_cryptodev_callback_register(uint8_t dev_id,
1152                         enum rte_cryptodev_event_type event,
1153                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1154 {
1155         struct rte_cryptodev *dev;
1156         struct rte_cryptodev_callback *user_cb;
1157
1158         if (!cb_fn)
1159                 return -EINVAL;
1160
1161         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1162                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1163                 return -EINVAL;
1164         }
1165
1166         dev = &rte_crypto_devices[dev_id];
1167         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1168
1169         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1170                 if (user_cb->cb_fn == cb_fn &&
1171                         user_cb->cb_arg == cb_arg &&
1172                         user_cb->event == event) {
1173                         break;
1174                 }
1175         }
1176
1177         /* create a new callback. */
1178         if (user_cb == NULL) {
1179                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1180                                 sizeof(struct rte_cryptodev_callback), 0);
1181                 if (user_cb != NULL) {
1182                         user_cb->cb_fn = cb_fn;
1183                         user_cb->cb_arg = cb_arg;
1184                         user_cb->event = event;
1185                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1186                 }
1187         }
1188
1189         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1190         return (user_cb == NULL) ? -ENOMEM : 0;
1191 }
1192
1193 int
1194 rte_cryptodev_callback_unregister(uint8_t dev_id,
1195                         enum rte_cryptodev_event_type event,
1196                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1197 {
1198         int ret;
1199         struct rte_cryptodev *dev;
1200         struct rte_cryptodev_callback *cb, *next;
1201
1202         if (!cb_fn)
1203                 return -EINVAL;
1204
1205         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1206                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1207                 return -EINVAL;
1208         }
1209
1210         dev = &rte_crypto_devices[dev_id];
1211         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1212
1213         ret = 0;
1214         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1215
1216                 next = TAILQ_NEXT(cb, next);
1217
1218                 if (cb->cb_fn != cb_fn || cb->event != event ||
1219                                 (cb->cb_arg != (void *)-1 &&
1220                                 cb->cb_arg != cb_arg))
1221                         continue;
1222
1223                 /*
1224                  * if this callback is not executing right now,
1225                  * then remove it.
1226                  */
1227                 if (cb->active == 0) {
1228                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1229                         rte_free(cb);
1230                 } else {
1231                         ret = -EAGAIN;
1232                 }
1233         }
1234
1235         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1236         return ret;
1237 }
1238
1239 void
1240 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1241         enum rte_cryptodev_event_type event)
1242 {
1243         struct rte_cryptodev_callback *cb_lst;
1244         struct rte_cryptodev_callback dev_cb;
1245
1246         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1247         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1248                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1249                         continue;
1250                 dev_cb = *cb_lst;
1251                 cb_lst->active = 1;
1252                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1253                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1254                                                 dev_cb.cb_arg);
1255                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1256                 cb_lst->active = 0;
1257         }
1258         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1259 }
1260
1261
1262 static void
1263 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1264                 void *opaque_arg,
1265                 void *_sess,
1266                 __rte_unused unsigned i)
1267 {
1268         struct rte_cryptodev_sym_session *sess = _sess;
1269         struct rte_cryptodev *dev = opaque_arg;
1270
1271         memset(sess, 0, mp->elt_size);
1272
1273         sess->dev_id = dev->data->dev_id;
1274         sess->dev_type = dev->dev_type;
1275         sess->mp = mp;
1276
1277         if (dev->dev_ops->session_initialize)
1278                 (*dev->dev_ops->session_initialize)(mp, sess);
1279 }
1280
1281 static int
1282 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1283                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1284 {
1285         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1286         unsigned priv_sess_size;
1287
1288         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1289                         dev->data->dev_id);
1290         if (n > sizeof(mp_name)) {
1291                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1292                 return -ENOMEM;
1293         }
1294
1295         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1296         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1297         if (priv_sess_size == 0) {
1298                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1299                                                 dev->data->name);
1300                 return -ENOMEM;
1301         }
1302
1303         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1304                         priv_sess_size;
1305
1306         dev->data->session_pool = rte_mempool_lookup(mp_name);
1307         if (dev->data->session_pool != NULL) {
1308                 if ((dev->data->session_pool->elt_size != elt_size) ||
1309                                 (dev->data->session_pool->cache_size <
1310                                 obj_cache_size) ||
1311                                 (dev->data->session_pool->size < nb_objs)) {
1312
1313                         CDEV_LOG_ERR("%s mempool already exists with different"
1314                                         " initialization parameters", mp_name);
1315                         dev->data->session_pool = NULL;
1316                         return -ENOMEM;
1317                 }
1318         } else {
1319                 dev->data->session_pool = rte_mempool_create(
1320                                 mp_name, /* mempool name */
1321                                 nb_objs, /* number of elements*/
1322                                 elt_size, /* element size*/
1323                                 obj_cache_size, /* Cache size*/
1324                                 0, /* private data size */
1325                                 NULL, /* obj initialization constructor */
1326                                 NULL, /* obj initialization constructor arg */
1327                                 rte_cryptodev_sym_session_init,
1328                                 /**< obj constructor*/
1329                                 dev, /* obj constructor arg */
1330                                 socket_id, /* socket id */
1331                                 0); /* flags */
1332
1333                 if (dev->data->session_pool == NULL) {
1334                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1335                         return -ENOMEM;
1336                 }
1337         }
1338
1339         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1340         return 0;
1341 }
1342
1343 struct rte_cryptodev_sym_session *
1344 rte_cryptodev_sym_session_create(uint8_t dev_id,
1345                 struct rte_crypto_sym_xform *xform)
1346 {
1347         struct rte_cryptodev *dev;
1348         struct rte_cryptodev_sym_session *sess;
1349         void *_sess;
1350
1351         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1352                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1353                 return NULL;
1354         }
1355
1356         dev = &rte_crypto_devices[dev_id];
1357
1358         /* Allocate a session structure from the session pool */
1359         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1360                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1361                 return NULL;
1362         }
1363
1364         sess = _sess;
1365
1366         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1367         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1368                         NULL) {
1369                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1370                                 dev_id);
1371
1372                 /* Return session to mempool */
1373                 rte_mempool_put(sess->mp, _sess);
1374                 return NULL;
1375         }
1376
1377         return sess;
1378 }
1379
1380 int
1381 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
1382                 struct rte_cryptodev_sym_session *sess)
1383 {
1384         struct rte_cryptodev *dev;
1385
1386         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1387                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1388                 return -EINVAL;
1389         }
1390
1391         dev = &rte_crypto_devices[sess->dev_id];
1392
1393         /* The API is optional, not returning error if driver do not suuport */
1394         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1395         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
1396                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1397                                 sess->dev_id, qp_id);
1398                 return -EPERM;
1399         }
1400
1401         return 0;
1402 }
1403
1404 int
1405 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
1406                 struct rte_cryptodev_sym_session *sess)
1407 {
1408         struct rte_cryptodev *dev;
1409
1410         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1411                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1412                 return -EINVAL;
1413         }
1414
1415         dev = &rte_crypto_devices[sess->dev_id];
1416
1417         /* The API is optional, not returning error if driver do not suuport */
1418         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1419         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
1420                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1421                                 sess->dev_id, qp_id);
1422                 return -EPERM;
1423         }
1424
1425         return 0;
1426 }
1427 struct rte_cryptodev_sym_session *
1428 rte_cryptodev_sym_session_free(uint8_t dev_id,
1429                 struct rte_cryptodev_sym_session *sess)
1430 {
1431         struct rte_cryptodev *dev;
1432
1433         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1434                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1435                 return sess;
1436         }
1437
1438         dev = &rte_crypto_devices[dev_id];
1439
1440         /* Check the session belongs to this device type */
1441         if (sess->dev_type != dev->dev_type)
1442                 return sess;
1443
1444         /* Let device implementation clear session material */
1445         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1446         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1447
1448         /* Return session to mempool */
1449         rte_mempool_put(sess->mp, (void *)sess);
1450
1451         return NULL;
1452 }
1453
1454 /** Initialise rte_crypto_op mempool element */
1455 static void
1456 rte_crypto_op_init(struct rte_mempool *mempool,
1457                 void *opaque_arg,
1458                 void *_op_data,
1459                 __rte_unused unsigned i)
1460 {
1461         struct rte_crypto_op *op = _op_data;
1462         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1463
1464         memset(_op_data, 0, mempool->elt_size);
1465
1466         __rte_crypto_op_reset(op, type);
1467
1468         op->phys_addr = rte_mem_virt2phy(_op_data);
1469         op->mempool = mempool;
1470 }
1471
1472
1473 struct rte_mempool *
1474 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1475                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1476                 int socket_id)
1477 {
1478         struct rte_crypto_op_pool_private *priv;
1479
1480         unsigned elt_size = sizeof(struct rte_crypto_op) +
1481                         sizeof(struct rte_crypto_sym_op) +
1482                         priv_size;
1483
1484         /* lookup mempool in case already allocated */
1485         struct rte_mempool *mp = rte_mempool_lookup(name);
1486
1487         if (mp != NULL) {
1488                 priv = (struct rte_crypto_op_pool_private *)
1489                                 rte_mempool_get_priv(mp);
1490
1491                 if (mp->elt_size != elt_size ||
1492                                 mp->cache_size < cache_size ||
1493                                 mp->size < nb_elts ||
1494                                 priv->priv_size <  priv_size) {
1495                         mp = NULL;
1496                         CDEV_LOG_ERR("Mempool %s already exists but with "
1497                                         "incompatible parameters", name);
1498                         return NULL;
1499                 }
1500                 return mp;
1501         }
1502
1503         mp = rte_mempool_create(
1504                         name,
1505                         nb_elts,
1506                         elt_size,
1507                         cache_size,
1508                         sizeof(struct rte_crypto_op_pool_private),
1509                         NULL,
1510                         NULL,
1511                         rte_crypto_op_init,
1512                         &type,
1513                         socket_id,
1514                         0);
1515
1516         if (mp == NULL) {
1517                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1518                 return NULL;
1519         }
1520
1521         priv = (struct rte_crypto_op_pool_private *)
1522                         rte_mempool_get_priv(mp);
1523
1524         priv->priv_size = priv_size;
1525         priv->type = type;
1526
1527         return mp;
1528 }
1529
1530 int
1531 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1532 {
1533         struct rte_cryptodev *dev = NULL;
1534         uint32_t i = 0;
1535
1536         if (name == NULL)
1537                 return -EINVAL;
1538
1539         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1540                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1541                                 "%s_%u", dev_name_prefix, i);
1542
1543                 if (ret < 0)
1544                         return ret;
1545
1546                 dev = rte_cryptodev_pmd_get_named_dev(name);
1547                 if (!dev)
1548                         return 0;
1549         }
1550
1551         return -1;
1552 }