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, struct rte_vdev_device *vdev)
 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         cryptodev->device = &vdev->device;
 677
 678         /* initialise user call-back tail queue */
 679         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 680
 681         return cryptodev;
 682 }
 683
 684 int
 685 rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
 686                         struct rte_pci_device *pci_dev)
 687 {
 688         struct rte_cryptodev_driver *cryptodrv;
 689         struct rte_cryptodev *cryptodev;
 690
 691         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 692
 693         int retval;
 694
 695         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 696         if (cryptodrv == NULL)
 697                 return -ENODEV;
 698
 699         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 700                         sizeof(cryptodev_name));
 701
 702         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
 703         if (cryptodev == NULL)
 704                 return -ENOMEM;
 705
 706         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 707                 cryptodev->data->dev_private =
 708                                 rte_zmalloc_socket(
 709                                                 "cryptodev private structure",
 710                                                 cryptodrv->dev_private_size,
 711                                                 RTE_CACHE_LINE_SIZE,
 712                                                 rte_socket_id());
 713
 714                 if (cryptodev->data->dev_private == NULL)
 715                         rte_panic("Cannot allocate memzone for private "
 716                                         "device data");
 717         }
 718
 719         cryptodev->device = &pci_dev->device;
 720         cryptodev->driver = cryptodrv;
 721
 722         /* init user callbacks */
 723         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 724
 725         /* Invoke PMD device initialization function */
 726         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 727         if (retval == 0)
 728                 return 0;
 729
 730         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 731                         " failed", pci_drv->driver.name,
 732                         (unsigned) pci_dev->id.vendor_id,
 733                         (unsigned) pci_dev->id.device_id);
 734
 735         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 736                 rte_free(cryptodev->data->dev_private);
 737
 738         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 739         cryptodev_globals.nb_devs--;
 740
 741         return -ENXIO;
 742 }
 743
 744 int
 745 rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 746 {
 747         const struct rte_cryptodev_driver *cryptodrv;
 748         struct rte_cryptodev *cryptodev;
 749         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 750         int ret;
 751
 752         if (pci_dev == NULL)
 753                 return -EINVAL;
 754
 755         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 756                         sizeof(cryptodev_name));
 757
 758         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 759         if (cryptodev == NULL)
 760                 return -ENODEV;
 761
 762         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 763         if (cryptodrv == NULL)
 764                 return -ENODEV;
 765
 766         /* Invoke PMD device uninit function */
 767         if (*cryptodrv->cryptodev_uninit) {
 768                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 769                 if (ret)
 770                         return ret;
 771         }
 772
 773         /* free crypto device */
 774         rte_cryptodev_pmd_release_device(cryptodev);
 775
 776         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 777                 rte_free(cryptodev->data->dev_private);
 778
 779         cryptodev->device = NULL;
 780         cryptodev->driver = NULL;
 781         cryptodev->data = NULL;
 782
 783         return 0;
 784 }
 785
 786 uint16_t
 787 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 788 {
 789         struct rte_cryptodev *dev;
 790
 791         dev = &rte_crypto_devices[dev_id];
 792         return dev->data->nb_queue_pairs;
 793 }
 794
 795 static int
 796 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 797                 int socket_id)
 798 {
 799         struct rte_cryptodev_info dev_info;
 800         void **qp;
 801         unsigned i;
 802
 803         if ((dev == NULL) || (nb_qpairs < 1)) {
 804                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 805                                                         dev, nb_qpairs);
 806                 return -EINVAL;
 807         }
 808
 809         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 810                         nb_qpairs, dev->data->dev_id);
 811
 812         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 813
 814         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 815         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 816
 817         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 818                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 819                                 nb_qpairs, dev->data->dev_id);
 820             return -EINVAL;
 821         }
 822
 823         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 824                 dev->data->queue_pairs = rte_zmalloc_socket(
 825                                 "cryptodev->queue_pairs",
 826                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 827                                 RTE_CACHE_LINE_SIZE, socket_id);
 828
 829                 if (dev->data->queue_pairs == NULL) {
 830                         dev->data->nb_queue_pairs = 0;
 831                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 832                                                         "nb_queues %u",
 833                                                         nb_qpairs);
 834                         return -(ENOMEM);
 835                 }
 836         } else { /* re-configure */
 837                 int ret;
 838                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 839
 840                 qp = dev->data->queue_pairs;
 841
 842                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 843                                 -ENOTSUP);
 844
 845                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 846                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 847                         if (ret < 0)
 848                                 return ret;
 849                 }
 850
 851                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 852                                 RTE_CACHE_LINE_SIZE);
 853                 if (qp == NULL) {
 854                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 855                                                 " nb_queues %u", nb_qpairs);
 856                         return -(ENOMEM);
 857                 }
 858
 859                 if (nb_qpairs > old_nb_queues) {
 860                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 861
 862                         memset(qp + old_nb_queues, 0,
 863                                 sizeof(qp[0]) * new_qs);
 864                 }
 865
 866                 dev->data->queue_pairs = qp;
 867
 868         }
 869         dev->data->nb_queue_pairs = nb_qpairs;
 870         return 0;
 871 }
 872
 873 int
 874 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 875 {
 876         struct rte_cryptodev *dev;
 877
 878         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 879                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 880                 return -EINVAL;
 881         }
 882
 883         dev = &rte_crypto_devices[dev_id];
 884         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 885                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 886                 return -EINVAL;
 887         }
 888
 889         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 890
 891         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 892
 893 }
 894
 895 int
 896 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 897 {
 898         struct rte_cryptodev *dev;
 899
 900         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 901                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 902                 return -EINVAL;
 903         }
 904
 905         dev = &rte_crypto_devices[dev_id];
 906         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 907                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 908                 return -EINVAL;
 909         }
 910
 911         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 912
 913         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 914
 915 }
 916
 917 static int
 918 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 919                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 920
 921 int
 922 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 923 {
 924         struct rte_cryptodev *dev;
 925         int diag;
 926
 927         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 928                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 929                 return -EINVAL;
 930         }
 931
 932         dev = &rte_crypto_devices[dev_id];
 933
 934         if (dev->data->dev_started) {
 935                 CDEV_LOG_ERR(
 936                     "device %d must be stopped to allow configuration", dev_id);
 937                 return -EBUSY;
 938         }
 939
 940         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 941
 942         /* Setup new number of queue pairs and reconfigure device. */
 943         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 944                         config->socket_id);
 945         if (diag != 0) {
 946                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 947                                 dev_id, diag);
 948                 return diag;
 949         }
 950
 951         /* Setup Session mempool for device */
 952         diag = rte_cryptodev_sym_session_pool_create(dev,
 953                         config->session_mp.nb_objs,
 954                         config->session_mp.cache_size,
 955                         config->socket_id);
 956         if (diag != 0)
 957                 return diag;
 958
 959         return (*dev->dev_ops->dev_configure)(dev, config);
 960 }
 961
 962
 963 int
 964 rte_cryptodev_start(uint8_t dev_id)
 965 {
 966         struct rte_cryptodev *dev;
 967         int diag;
 968
 969         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 970
 971         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 972                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 973                 return -EINVAL;
 974         }
 975
 976         dev = &rte_crypto_devices[dev_id];
 977
 978         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 979
 980         if (dev->data->dev_started != 0) {
 981                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 982                         dev_id);
 983                 return 0;
 984         }
 985
 986         diag = (*dev->dev_ops->dev_start)(dev);
 987         if (diag == 0)
 988                 dev->data->dev_started = 1;
 989         else
 990                 return diag;
 991
 992         return 0;
 993 }
 994
 995 void
 996 rte_cryptodev_stop(uint8_t dev_id)
 997 {
 998         struct rte_cryptodev *dev;
 999
1000         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1001                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1002                 return;
1003         }
1004
1005         dev = &rte_crypto_devices[dev_id];
1006
1007         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
1008
1009         if (dev->data->dev_started == 0) {
1010                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
1011                         dev_id);
1012                 return;
1013         }
1014
1015         dev->data->dev_started = 0;
1016         (*dev->dev_ops->dev_stop)(dev);
1017 }
1018
1019 int
1020 rte_cryptodev_close(uint8_t dev_id)
1021 {
1022         struct rte_cryptodev *dev;
1023         int retval;
1024
1025         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1026                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1027                 return -1;
1028         }
1029
1030         dev = &rte_crypto_devices[dev_id];
1031
1032         /* Device must be stopped before it can be closed */
1033         if (dev->data->dev_started == 1) {
1034                 CDEV_LOG_ERR("Device %u must be stopped before closing",
1035                                 dev_id);
1036                 return -EBUSY;
1037         }
1038
1039         /* We can't close the device if there are outstanding sessions in use */
1040         if (dev->data->session_pool != NULL) {
1041                 if (!rte_mempool_full(dev->data->session_pool)) {
1042                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
1043                                         "has sessions still in use, free "
1044                                         "all sessions before calling close",
1045                                         (unsigned)dev_id);
1046                         return -EBUSY;
1047                 }
1048         }
1049
1050         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
1051         retval = (*dev->dev_ops->dev_close)(dev);
1052
1053         if (retval < 0)
1054                 return retval;
1055
1056         return 0;
1057 }
1058
1059 int
1060 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
1061                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
1062 {
1063         struct rte_cryptodev *dev;
1064
1065         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1066                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1067                 return -EINVAL;
1068         }
1069
1070         dev = &rte_crypto_devices[dev_id];
1071         if (queue_pair_id >= dev->data->nb_queue_pairs) {
1072                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
1073                 return -EINVAL;
1074         }
1075
1076         if (dev->data->dev_started) {
1077                 CDEV_LOG_ERR(
1078                     "device %d must be stopped to allow configuration", dev_id);
1079                 return -EBUSY;
1080         }
1081
1082         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
1083
1084         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
1085                         socket_id);
1086 }
1087
1088
1089 int
1090 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
1091 {
1092         struct rte_cryptodev *dev;
1093
1094         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1095                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1096                 return -ENODEV;
1097         }
1098
1099         if (stats == NULL) {
1100                 CDEV_LOG_ERR("Invalid stats ptr");
1101                 return -EINVAL;
1102         }
1103
1104         dev = &rte_crypto_devices[dev_id];
1105         memset(stats, 0, sizeof(*stats));
1106
1107         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1108         (*dev->dev_ops->stats_get)(dev, stats);
1109         return 0;
1110 }
1111
1112 void
1113 rte_cryptodev_stats_reset(uint8_t dev_id)
1114 {
1115         struct rte_cryptodev *dev;
1116
1117         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1118                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1119                 return;
1120         }
1121
1122         dev = &rte_crypto_devices[dev_id];
1123
1124         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1125         (*dev->dev_ops->stats_reset)(dev);
1126 }
1127
1128
1129 void
1130 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1131 {
1132         struct rte_cryptodev *dev;
1133
1134         if (dev_id >= cryptodev_globals.nb_devs) {
1135                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1136                 return;
1137         }
1138
1139         dev = &rte_crypto_devices[dev_id];
1140
1141         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1142
1143         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1144         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1145
1146         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
1147         if (dev->driver)
1148                 dev_info->driver_name = dev->driver->pci_drv.driver.name;
1149 }
1150
1151
1152 int
1153 rte_cryptodev_callback_register(uint8_t dev_id,
1154                         enum rte_cryptodev_event_type event,
1155                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1156 {
1157         struct rte_cryptodev *dev;
1158         struct rte_cryptodev_callback *user_cb;
1159
1160         if (!cb_fn)
1161                 return -EINVAL;
1162
1163         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1164                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1165                 return -EINVAL;
1166         }
1167
1168         dev = &rte_crypto_devices[dev_id];
1169         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1170
1171         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1172                 if (user_cb->cb_fn == cb_fn &&
1173                         user_cb->cb_arg == cb_arg &&
1174                         user_cb->event == event) {
1175                         break;
1176                 }
1177         }
1178
1179         /* create a new callback. */
1180         if (user_cb == NULL) {
1181                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1182                                 sizeof(struct rte_cryptodev_callback), 0);
1183                 if (user_cb != NULL) {
1184                         user_cb->cb_fn = cb_fn;
1185                         user_cb->cb_arg = cb_arg;
1186                         user_cb->event = event;
1187                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1188                 }
1189         }
1190
1191         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1192         return (user_cb == NULL) ? -ENOMEM : 0;
1193 }
1194
1195 int
1196 rte_cryptodev_callback_unregister(uint8_t dev_id,
1197                         enum rte_cryptodev_event_type event,
1198                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1199 {
1200         int ret;
1201         struct rte_cryptodev *dev;
1202         struct rte_cryptodev_callback *cb, *next;
1203
1204         if (!cb_fn)
1205                 return -EINVAL;
1206
1207         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1208                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1209                 return -EINVAL;
1210         }
1211
1212         dev = &rte_crypto_devices[dev_id];
1213         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1214
1215         ret = 0;
1216         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1217
1218                 next = TAILQ_NEXT(cb, next);
1219
1220                 if (cb->cb_fn != cb_fn || cb->event != event ||
1221                                 (cb->cb_arg != (void *)-1 &&
1222                                 cb->cb_arg != cb_arg))
1223                         continue;
1224
1225                 /*
1226                  * if this callback is not executing right now,
1227                  * then remove it.
1228                  */
1229                 if (cb->active == 0) {
1230                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1231                         rte_free(cb);
1232                 } else {
1233                         ret = -EAGAIN;
1234                 }
1235         }
1236
1237         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1238         return ret;
1239 }
1240
1241 void
1242 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1243         enum rte_cryptodev_event_type event)
1244 {
1245         struct rte_cryptodev_callback *cb_lst;
1246         struct rte_cryptodev_callback dev_cb;
1247
1248         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1249         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1250                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1251                         continue;
1252                 dev_cb = *cb_lst;
1253                 cb_lst->active = 1;
1254                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1255                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1256                                                 dev_cb.cb_arg);
1257                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1258                 cb_lst->active = 0;
1259         }
1260         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1261 }
1262
1263
1264 static void
1265 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1266                 void *opaque_arg,
1267                 void *_sess,
1268                 __rte_unused unsigned i)
1269 {
1270         struct rte_cryptodev_sym_session *sess = _sess;
1271         struct rte_cryptodev *dev = opaque_arg;
1272
1273         memset(sess, 0, mp->elt_size);
1274
1275         sess->dev_id = dev->data->dev_id;
1276         sess->dev_type = dev->dev_type;
1277         sess->mp = mp;
1278
1279         if (dev->dev_ops->session_initialize)
1280                 (*dev->dev_ops->session_initialize)(mp, sess);
1281 }
1282
1283 static int
1284 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1285                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1286 {
1287         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1288         unsigned priv_sess_size;
1289
1290         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1291                         dev->data->dev_id);
1292         if (n > sizeof(mp_name)) {
1293                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1294                 return -ENOMEM;
1295         }
1296
1297         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1298         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1299         if (priv_sess_size == 0) {
1300                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1301                                                 dev->data->name);
1302                 return -ENOMEM;
1303         }
1304
1305         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1306                         priv_sess_size;
1307
1308         dev->data->session_pool = rte_mempool_lookup(mp_name);
1309         if (dev->data->session_pool != NULL) {
1310                 if ((dev->data->session_pool->elt_size != elt_size) ||
1311                                 (dev->data->session_pool->cache_size <
1312                                 obj_cache_size) ||
1313                                 (dev->data->session_pool->size < nb_objs)) {
1314
1315                         CDEV_LOG_ERR("%s mempool already exists with different"
1316                                         " initialization parameters", mp_name);
1317                         dev->data->session_pool = NULL;
1318                         return -ENOMEM;
1319                 }
1320         } else {
1321                 dev->data->session_pool = rte_mempool_create(
1322                                 mp_name, /* mempool name */
1323                                 nb_objs, /* number of elements*/
1324                                 elt_size, /* element size*/
1325                                 obj_cache_size, /* Cache size*/
1326                                 0, /* private data size */
1327                                 NULL, /* obj initialization constructor */
1328                                 NULL, /* obj initialization constructor arg */
1329                                 rte_cryptodev_sym_session_init,
1330                                 /**< obj constructor*/
1331                                 dev, /* obj constructor arg */
1332                                 socket_id, /* socket id */
1333                                 0); /* flags */
1334
1335                 if (dev->data->session_pool == NULL) {
1336                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1337                         return -ENOMEM;
1338                 }
1339         }
1340
1341         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1342         return 0;
1343 }
1344
1345 struct rte_cryptodev_sym_session *
1346 rte_cryptodev_sym_session_create(uint8_t dev_id,
1347                 struct rte_crypto_sym_xform *xform)
1348 {
1349         struct rte_cryptodev *dev;
1350         struct rte_cryptodev_sym_session *sess;
1351         void *_sess;
1352
1353         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1354                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1355                 return NULL;
1356         }
1357
1358         dev = &rte_crypto_devices[dev_id];
1359
1360         /* Allocate a session structure from the session pool */
1361         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1362                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1363                 return NULL;
1364         }
1365
1366         sess = _sess;
1367
1368         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1369         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1370                         NULL) {
1371                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1372                                 dev_id);
1373
1374                 /* Return session to mempool */
1375                 rte_mempool_put(sess->mp, _sess);
1376                 return NULL;
1377         }
1378
1379         return sess;
1380 }
1381
1382 int
1383 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
1384                 struct rte_cryptodev_sym_session *sess)
1385 {
1386         struct rte_cryptodev *dev;
1387
1388         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1389                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1390                 return -EINVAL;
1391         }
1392
1393         dev = &rte_crypto_devices[sess->dev_id];
1394
1395         /* The API is optional, not returning error if driver do not suuport */
1396         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1397         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
1398                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1399                                 sess->dev_id, qp_id);
1400                 return -EPERM;
1401         }
1402
1403         return 0;
1404 }
1405
1406 int
1407 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
1408                 struct rte_cryptodev_sym_session *sess)
1409 {
1410         struct rte_cryptodev *dev;
1411
1412         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1413                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1414                 return -EINVAL;
1415         }
1416
1417         dev = &rte_crypto_devices[sess->dev_id];
1418
1419         /* The API is optional, not returning error if driver do not suuport */
1420         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1421         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
1422                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1423                                 sess->dev_id, qp_id);
1424                 return -EPERM;
1425         }
1426
1427         return 0;
1428 }
1429 struct rte_cryptodev_sym_session *
1430 rte_cryptodev_sym_session_free(uint8_t dev_id,
1431                 struct rte_cryptodev_sym_session *sess)
1432 {
1433         struct rte_cryptodev *dev;
1434
1435         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1436                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1437                 return sess;
1438         }
1439
1440         dev = &rte_crypto_devices[dev_id];
1441
1442         /* Check the session belongs to this device type */
1443         if (sess->dev_type != dev->dev_type)
1444                 return sess;
1445
1446         /* Let device implementation clear session material */
1447         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1448         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1449
1450         /* Return session to mempool */
1451         rte_mempool_put(sess->mp, (void *)sess);
1452
1453         return NULL;
1454 }
1455
1456 /** Initialise rte_crypto_op mempool element */
1457 static void
1458 rte_crypto_op_init(struct rte_mempool *mempool,
1459                 void *opaque_arg,
1460                 void *_op_data,
1461                 __rte_unused unsigned i)
1462 {
1463         struct rte_crypto_op *op = _op_data;
1464         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1465
1466         memset(_op_data, 0, mempool->elt_size);
1467
1468         __rte_crypto_op_reset(op, type);
1469
1470         op->phys_addr = rte_mem_virt2phy(_op_data);
1471         op->mempool = mempool;
1472 }
1473
1474
1475 struct rte_mempool *
1476 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1477                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1478                 int socket_id)
1479 {
1480         struct rte_crypto_op_pool_private *priv;
1481
1482         unsigned elt_size = sizeof(struct rte_crypto_op) +
1483                         sizeof(struct rte_crypto_sym_op) +
1484                         priv_size;
1485
1486         /* lookup mempool in case already allocated */
1487         struct rte_mempool *mp = rte_mempool_lookup(name);
1488
1489         if (mp != NULL) {
1490                 priv = (struct rte_crypto_op_pool_private *)
1491                                 rte_mempool_get_priv(mp);
1492
1493                 if (mp->elt_size != elt_size ||
1494                                 mp->cache_size < cache_size ||
1495                                 mp->size < nb_elts ||
1496                                 priv->priv_size <  priv_size) {
1497                         mp = NULL;
1498                         CDEV_LOG_ERR("Mempool %s already exists but with "
1499                                         "incompatible parameters", name);
1500                         return NULL;
1501                 }
1502                 return mp;
1503         }
1504
1505         mp = rte_mempool_create(
1506                         name,
1507                         nb_elts,
1508                         elt_size,
1509                         cache_size,
1510                         sizeof(struct rte_crypto_op_pool_private),
1511                         NULL,
1512                         NULL,
1513                         rte_crypto_op_init,
1514                         &type,
1515                         socket_id,
1516                         0);
1517
1518         if (mp == NULL) {
1519                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1520                 return NULL;
1521         }
1522
1523         priv = (struct rte_crypto_op_pool_private *)
1524                         rte_mempool_get_priv(mp);
1525
1526         priv->priv_size = priv_size;
1527         priv->type = type;
1528
1529         return mp;
1530 }
1531
1532 int
1533 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1534 {
1535         struct rte_cryptodev *dev = NULL;
1536         uint32_t i = 0;
1537
1538         if (name == NULL)
1539                 return -EINVAL;
1540
1541         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1542                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1543                                 "%s_%u", dev_name_prefix, i);
1544
1545                 if (ret < 0)
1546                         return ret;
1547
1548                 dev = rte_cryptodev_pmd_get_named_dev(name);
1549                 if (!dev)
1550                         return 0;
1551         }
1552
1553         return -1;
1554 }