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