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 static uint8_t
 237 number_of_sockets(void)
 238 {
 239         int sockets = 0;
 240         int i;
 241         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
 242
 243         for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
 244                 if (sockets < ms[i].socket_id)
 245                         sockets = ms[i].socket_id;
 246         }
 247
 248         /* Number of sockets = maximum socket_id + 1 */
 249         return ++sockets;
 250 }
 251
 252 /** Parse integer from integer argument */
 253 static int
 254 parse_integer_arg(const char *key __rte_unused,
 255                 const char *value, void *extra_args)
 256 {
 257         int *i = extra_args;
 258
 259         *i = atoi(value);
 260         if (*i < 0) {
 261                 CDEV_LOG_ERR("Argument has to be positive.");
 262                 return -1;
 263         }
 264
 265         return 0;
 266 }
 267
 268 /** Parse name */
 269 static int
 270 parse_name_arg(const char *key __rte_unused,
 271                 const char *value, void *extra_args)
 272 {
 273         struct rte_crypto_vdev_init_params *params = extra_args;
 274
 275         if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
 276                 CDEV_LOG_ERR("Invalid name %s, should be less than "
 277                                 "%u bytes", value,
 278                                 RTE_CRYPTODEV_NAME_MAX_LEN - 1);
 279                 return -1;
 280         }
 281
 282         strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
 283
 284         return 0;
 285 }
 286
 287 int
 288 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
 289                 const char *input_args)
 290 {
 291         struct rte_kvargs *kvlist = NULL;
 292         int ret = 0;
 293
 294         if (params == NULL)
 295                 return -EINVAL;
 296
 297         if (input_args) {
 298                 kvlist = rte_kvargs_parse(input_args,
 299                                 cryptodev_vdev_valid_params);
 300                 if (kvlist == NULL)
 301                         return -1;
 302
 303                 ret = rte_kvargs_process(kvlist,
 304                                         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 305                                         &parse_integer_arg,
 306                                         &params->max_nb_queue_pairs);
 307                 if (ret < 0)
 308                         goto free_kvlist;
 309
 310                 ret = rte_kvargs_process(kvlist,
 311                                         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 312                                         &parse_integer_arg,
 313                                         &params->max_nb_sessions);
 314                 if (ret < 0)
 315                         goto free_kvlist;
 316
 317                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 318                                         &parse_integer_arg,
 319                                         &params->socket_id);
 320                 if (ret < 0)
 321                         goto free_kvlist;
 322
 323                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
 324                                         &parse_name_arg,
 325                                         params);
 326                 if (ret < 0)
 327                         goto free_kvlist;
 328
 329                 if (params->socket_id >= number_of_sockets()) {
 330                         CDEV_LOG_ERR("Invalid socket id specified to create "
 331                                 "the virtual crypto device on");
 332                         goto free_kvlist;
 333                 }
 334         }
 335
 336 free_kvlist:
 337         rte_kvargs_free(kvlist);
 338         return ret;
 339 }
 340
 341 const struct rte_cryptodev_symmetric_capability *
 342 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 343                 const struct rte_cryptodev_sym_capability_idx *idx)
 344 {
 345         const struct rte_cryptodev_capabilities *capability;
 346         struct rte_cryptodev_info dev_info;
 347         int i = 0;
 348
 349         rte_cryptodev_info_get(dev_id, &dev_info);
 350
 351         while ((capability = &dev_info.capabilities[i++])->op !=
 352                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 353                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 354                         continue;
 355
 356                 if (capability->sym.xform_type != idx->type)
 357                         continue;
 358
 359                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 360                         capability->sym.auth.algo == idx->algo.auth)
 361                         return &capability->sym;
 362
 363                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 364                         capability->sym.cipher.algo == idx->algo.cipher)
 365                         return &capability->sym;
 366         }
 367
 368         return NULL;
 369
 370 }
 371
 372 #define param_range_check(x, y) \
 373         (((x < y.min) || (x > y.max)) || \
 374         (y.increment != 0 && (x % y.increment) != 0))
 375
 376 int
 377 rte_cryptodev_sym_capability_check_cipher(
 378                 const struct rte_cryptodev_symmetric_capability *capability,
 379                 uint16_t key_size, uint16_t iv_size)
 380 {
 381         if (param_range_check(key_size, capability->cipher.key_size))
 382                 return -1;
 383
 384         if (param_range_check(iv_size, capability->cipher.iv_size))
 385                 return -1;
 386
 387         return 0;
 388 }
 389
 390 int
 391 rte_cryptodev_sym_capability_check_auth(
 392                 const struct rte_cryptodev_symmetric_capability *capability,
 393                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size)
 394 {
 395         if (param_range_check(key_size, capability->auth.key_size))
 396                 return -1;
 397
 398         if (param_range_check(digest_size, capability->auth.digest_size))
 399                 return -1;
 400
 401         if (param_range_check(aad_size, capability->auth.aad_size))
 402                 return -1;
 403
 404         return 0;
 405 }
 406
 407
 408 const char *
 409 rte_cryptodev_get_feature_name(uint64_t flag)
 410 {
 411         switch (flag) {
 412         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 413                 return "SYMMETRIC_CRYPTO";
 414         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 415                 return "ASYMMETRIC_CRYPTO";
 416         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 417                 return "SYM_OPERATION_CHAINING";
 418         case RTE_CRYPTODEV_FF_CPU_SSE:
 419                 return "CPU_SSE";
 420         case RTE_CRYPTODEV_FF_CPU_AVX:
 421                 return "CPU_AVX";
 422         case RTE_CRYPTODEV_FF_CPU_AVX2:
 423                 return "CPU_AVX2";
 424         case RTE_CRYPTODEV_FF_CPU_AESNI:
 425                 return "CPU_AESNI";
 426         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 427                 return "HW_ACCELERATED";
 428         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 429                 return "MBUF_SCATTER_GATHER";
 430         case RTE_CRYPTODEV_FF_CPU_NEON:
 431                 return "CPU_NEON";
 432         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 433                 return "CPU_ARM_CE";
 434         default:
 435                 return NULL;
 436         }
 437 }
 438
 439 int
 440 rte_cryptodev_create_vdev(const char *name, const char *args)
 441 {
 442         return rte_vdev_init(name, args);
 443 }
 444
 445 struct rte_cryptodev *
 446 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 447 {
 448         return &rte_cryptodev_globals->devs[dev_id];
 449 }
 450
 451 struct rte_cryptodev *
 452 rte_cryptodev_pmd_get_named_dev(const char *name)
 453 {
 454         struct rte_cryptodev *dev;
 455         unsigned int i;
 456
 457         if (name == NULL)
 458                 return NULL;
 459
 460         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 461                 dev = &rte_cryptodev_globals->devs[i];
 462
 463                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 464                                 (strcmp(dev->data->name, name) == 0))
 465                         return dev;
 466         }
 467
 468         return NULL;
 469 }
 470
 471 unsigned int
 472 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 473 {
 474         struct rte_cryptodev *dev = NULL;
 475
 476         if (dev_id >= rte_cryptodev_globals->nb_devs)
 477                 return 0;
 478
 479         dev = rte_cryptodev_pmd_get_dev(dev_id);
 480         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 481                 return 0;
 482         else
 483                 return 1;
 484 }
 485
 486
 487 int
 488 rte_cryptodev_get_dev_id(const char *name)
 489 {
 490         unsigned i;
 491
 492         if (name == NULL)
 493                 return -1;
 494
 495         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 496                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 497                                 == 0) &&
 498                                 (rte_cryptodev_globals->devs[i].attached ==
 499                                                 RTE_CRYPTODEV_ATTACHED))
 500                         return i;
 501
 502         return -1;
 503 }
 504
 505 uint8_t
 506 rte_cryptodev_count(void)
 507 {
 508         return rte_cryptodev_globals->nb_devs;
 509 }
 510
 511 uint8_t
 512 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 513 {
 514         uint8_t i, dev_count = 0;
 515
 516         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 517                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 518                         rte_cryptodev_globals->devs[i].attached ==
 519                                         RTE_CRYPTODEV_ATTACHED)
 520                         dev_count++;
 521
 522         return dev_count;
 523 }
 524
 525 uint8_t
 526 rte_cryptodev_devices_get(const char *dev_name, uint8_t *devices,
 527         uint8_t nb_devices)
 528 {
 529         uint8_t i, count = 0;
 530         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 531         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 532
 533         for (i = 0; i < max_devs && count < nb_devices; i++) {
 534
 535                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 536                         const struct rte_cryptodev_driver *drv = devs[i].driver;
 537                         int cmp;
 538
 539                         if (drv)
 540                                 cmp = strncmp(drv->pci_drv.driver.name,
 541                                                 dev_name, strlen(dev_name));
 542                         else
 543                                 cmp = strncmp(devs[i].data->name,
 544                                                 dev_name, strlen(dev_name));
 545
 546                         if (cmp == 0)
 547                                 devices[count++] = devs[i].data->dev_id;
 548                 }
 549         }
 550
 551         return count;
 552 }
 553
 554 int
 555 rte_cryptodev_socket_id(uint8_t dev_id)
 556 {
 557         struct rte_cryptodev *dev;
 558
 559         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 560                 return -1;
 561
 562         dev = rte_cryptodev_pmd_get_dev(dev_id);
 563
 564         return dev->data->socket_id;
 565 }
 566
 567 static inline int
 568 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 569                 int socket_id)
 570 {
 571         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 572         const struct rte_memzone *mz;
 573         int n;
 574
 575         /* generate memzone name */
 576         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 577         if (n >= (int)sizeof(mz_name))
 578                 return -EINVAL;
 579
 580         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 581                 mz = rte_memzone_reserve(mz_name,
 582                                 sizeof(struct rte_cryptodev_data),
 583                                 socket_id, 0);
 584         } else
 585                 mz = rte_memzone_lookup(mz_name);
 586
 587         if (mz == NULL)
 588                 return -ENOMEM;
 589
 590         *data = mz->addr;
 591         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 592                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 593
 594         return 0;
 595 }
 596
 597 static uint8_t
 598 rte_cryptodev_find_free_device_index(void)
 599 {
 600         uint8_t dev_id;
 601
 602         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 603                 if (rte_crypto_devices[dev_id].attached ==
 604                                 RTE_CRYPTODEV_DETACHED)
 605                         return dev_id;
 606         }
 607         return RTE_CRYPTO_MAX_DEVS;
 608 }
 609
 610 struct rte_cryptodev *
 611 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 612 {
 613         struct rte_cryptodev *cryptodev;
 614         uint8_t dev_id;
 615
 616         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 617                 CDEV_LOG_ERR("Crypto device with name %s already "
 618                                 "allocated!", name);
 619                 return NULL;
 620         }
 621
 622         dev_id = rte_cryptodev_find_free_device_index();
 623         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 624                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 625                 return NULL;
 626         }
 627
 628         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 629
 630         if (cryptodev->data == NULL) {
 631                 struct rte_cryptodev_data *cryptodev_data =
 632                                 cryptodev_globals.data[dev_id];
 633
 634                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 635                                 socket_id);
 636
 637                 if (retval < 0 || cryptodev_data == NULL)
 638                         return NULL;
 639
 640                 cryptodev->data = cryptodev_data;
 641
 642                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 643                                 "%s", name);
 644
 645                 cryptodev->data->dev_id = dev_id;
 646                 cryptodev->data->socket_id = socket_id;
 647                 cryptodev->data->dev_started = 0;
 648
 649                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 650
 651                 cryptodev_globals.nb_devs++;
 652         }
 653
 654         return cryptodev;
 655 }
 656
 657 int
 658 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 659 {
 660         int ret;
 661
 662         if (cryptodev == NULL)
 663                 return -EINVAL;
 664
 665         ret = rte_cryptodev_close(cryptodev->data->dev_id);
 666         if (ret < 0)
 667                 return ret;
 668
 669         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 670         cryptodev_globals.nb_devs--;
 671         return 0;
 672 }
 673
 674 struct rte_cryptodev *
 675 rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 676                 int socket_id)
 677 {
 678         struct rte_cryptodev *cryptodev;
 679
 680         /* allocate device structure */
 681         cryptodev = rte_cryptodev_pmd_allocate(name, socket_id);
 682         if (cryptodev == NULL)
 683                 return NULL;
 684
 685         /* allocate private device structure */
 686         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 687                 cryptodev->data->dev_private =
 688                                 rte_zmalloc_socket("cryptodev device private",
 689                                                 dev_private_size,
 690                                                 RTE_CACHE_LINE_SIZE,
 691                                                 socket_id);
 692
 693                 if (cryptodev->data->dev_private == NULL)
 694                         rte_panic("Cannot allocate memzone for private device"
 695                                         " data");
 696         }
 697
 698         /* initialise user call-back tail queue */
 699         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 700
 701         return cryptodev;
 702 }
 703
 704 int
 705 rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
 706                         struct rte_pci_device *pci_dev)
 707 {
 708         struct rte_cryptodev_driver *cryptodrv;
 709         struct rte_cryptodev *cryptodev;
 710
 711         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 712
 713         int retval;
 714
 715         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 716         if (cryptodrv == NULL)
 717                 return -ENODEV;
 718
 719         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 720                         sizeof(cryptodev_name));
 721
 722         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
 723         if (cryptodev == NULL)
 724                 return -ENOMEM;
 725
 726         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 727                 cryptodev->data->dev_private =
 728                                 rte_zmalloc_socket(
 729                                                 "cryptodev private structure",
 730                                                 cryptodrv->dev_private_size,
 731                                                 RTE_CACHE_LINE_SIZE,
 732                                                 rte_socket_id());
 733
 734                 if (cryptodev->data->dev_private == NULL)
 735                         rte_panic("Cannot allocate memzone for private "
 736                                         "device data");
 737         }
 738
 739         cryptodev->device = &pci_dev->device;
 740         cryptodev->driver = cryptodrv;
 741
 742         /* init user callbacks */
 743         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 744
 745         /* Invoke PMD device initialization function */
 746         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 747         if (retval == 0)
 748                 return 0;
 749
 750         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 751                         " failed", pci_drv->driver.name,
 752                         (unsigned) pci_dev->id.vendor_id,
 753                         (unsigned) pci_dev->id.device_id);
 754
 755         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 756                 rte_free(cryptodev->data->dev_private);
 757
 758         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 759         cryptodev_globals.nb_devs--;
 760
 761         return -ENXIO;
 762 }
 763
 764 int
 765 rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 766 {
 767         const struct rte_cryptodev_driver *cryptodrv;
 768         struct rte_cryptodev *cryptodev;
 769         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 770         int ret;
 771
 772         if (pci_dev == NULL)
 773                 return -EINVAL;
 774
 775         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 776                         sizeof(cryptodev_name));
 777
 778         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 779         if (cryptodev == NULL)
 780                 return -ENODEV;
 781
 782         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 783         if (cryptodrv == NULL)
 784                 return -ENODEV;
 785
 786         /* Invoke PMD device uninit function */
 787         if (*cryptodrv->cryptodev_uninit) {
 788                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 789                 if (ret)
 790                         return ret;
 791         }
 792
 793         /* free crypto device */
 794         rte_cryptodev_pmd_release_device(cryptodev);
 795
 796         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 797                 rte_free(cryptodev->data->dev_private);
 798
 799         cryptodev->device = NULL;
 800         cryptodev->driver = NULL;
 801         cryptodev->data = NULL;
 802
 803         return 0;
 804 }
 805
 806 uint16_t
 807 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 808 {
 809         struct rte_cryptodev *dev;
 810
 811         dev = &rte_crypto_devices[dev_id];
 812         return dev->data->nb_queue_pairs;
 813 }
 814
 815 static int
 816 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 817                 int socket_id)
 818 {
 819         struct rte_cryptodev_info dev_info;
 820         void **qp;
 821         unsigned i;
 822
 823         if ((dev == NULL) || (nb_qpairs < 1)) {
 824                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 825                                                         dev, nb_qpairs);
 826                 return -EINVAL;
 827         }
 828
 829         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 830                         nb_qpairs, dev->data->dev_id);
 831
 832         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 833
 834         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 835         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 836
 837         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 838                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 839                                 nb_qpairs, dev->data->dev_id);
 840             return -EINVAL;
 841         }
 842
 843         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 844                 dev->data->queue_pairs = rte_zmalloc_socket(
 845                                 "cryptodev->queue_pairs",
 846                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 847                                 RTE_CACHE_LINE_SIZE, socket_id);
 848
 849                 if (dev->data->queue_pairs == NULL) {
 850                         dev->data->nb_queue_pairs = 0;
 851                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 852                                                         "nb_queues %u",
 853                                                         nb_qpairs);
 854                         return -(ENOMEM);
 855                 }
 856         } else { /* re-configure */
 857                 int ret;
 858                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 859
 860                 qp = dev->data->queue_pairs;
 861
 862                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 863                                 -ENOTSUP);
 864
 865                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 866                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 867                         if (ret < 0)
 868                                 return ret;
 869                 }
 870
 871                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 872                                 RTE_CACHE_LINE_SIZE);
 873                 if (qp == NULL) {
 874                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 875                                                 " nb_queues %u", nb_qpairs);
 876                         return -(ENOMEM);
 877                 }
 878
 879                 if (nb_qpairs > old_nb_queues) {
 880                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 881
 882                         memset(qp + old_nb_queues, 0,
 883                                 sizeof(qp[0]) * new_qs);
 884                 }
 885
 886                 dev->data->queue_pairs = qp;
 887
 888         }
 889         dev->data->nb_queue_pairs = nb_qpairs;
 890         return 0;
 891 }
 892
 893 int
 894 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 895 {
 896         struct rte_cryptodev *dev;
 897
 898         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 899                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 900                 return -EINVAL;
 901         }
 902
 903         dev = &rte_crypto_devices[dev_id];
 904         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 905                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 906                 return -EINVAL;
 907         }
 908
 909         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 910
 911         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 912
 913 }
 914
 915 int
 916 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 917 {
 918         struct rte_cryptodev *dev;
 919
 920         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 921                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 922                 return -EINVAL;
 923         }
 924
 925         dev = &rte_crypto_devices[dev_id];
 926         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 927                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 928                 return -EINVAL;
 929         }
 930
 931         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 932
 933         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 934
 935 }
 936
 937 static int
 938 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 939                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 940
 941 int
 942 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 943 {
 944         struct rte_cryptodev *dev;
 945         int diag;
 946
 947         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 948                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 949                 return -EINVAL;
 950         }
 951
 952         dev = &rte_crypto_devices[dev_id];
 953
 954         if (dev->data->dev_started) {
 955                 CDEV_LOG_ERR(
 956                     "device %d must be stopped to allow configuration", dev_id);
 957                 return -EBUSY;
 958         }
 959
 960         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 961
 962         /* Setup new number of queue pairs and reconfigure device. */
 963         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 964                         config->socket_id);
 965         if (diag != 0) {
 966                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 967                                 dev_id, diag);
 968                 return diag;
 969         }
 970
 971         /* Setup Session mempool for device */
 972         diag = rte_cryptodev_sym_session_pool_create(dev,
 973                         config->session_mp.nb_objs,
 974                         config->session_mp.cache_size,
 975                         config->socket_id);
 976         if (diag != 0)
 977                 return diag;
 978
 979         return (*dev->dev_ops->dev_configure)(dev, config);
 980 }
 981
 982
 983 int
 984 rte_cryptodev_start(uint8_t dev_id)
 985 {
 986         struct rte_cryptodev *dev;
 987         int diag;
 988
 989         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 990
 991         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 992                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 993                 return -EINVAL;
 994         }
 995
 996         dev = &rte_crypto_devices[dev_id];
 997
 998         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 999
1000         if (dev->data->dev_started != 0) {
1001                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
1002                         dev_id);
1003                 return 0;
1004         }
1005
1006         diag = (*dev->dev_ops->dev_start)(dev);
1007         if (diag == 0)
1008                 dev->data->dev_started = 1;
1009         else
1010                 return diag;
1011
1012         return 0;
1013 }
1014
1015 void
1016 rte_cryptodev_stop(uint8_t dev_id)
1017 {
1018         struct rte_cryptodev *dev;
1019
1020         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1021                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1022                 return;
1023         }
1024
1025         dev = &rte_crypto_devices[dev_id];
1026
1027         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
1028
1029         if (dev->data->dev_started == 0) {
1030                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
1031                         dev_id);
1032                 return;
1033         }
1034
1035         dev->data->dev_started = 0;
1036         (*dev->dev_ops->dev_stop)(dev);
1037 }
1038
1039 int
1040 rte_cryptodev_close(uint8_t dev_id)
1041 {
1042         struct rte_cryptodev *dev;
1043         int retval;
1044
1045         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1046                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1047                 return -1;
1048         }
1049
1050         dev = &rte_crypto_devices[dev_id];
1051
1052         /* Device must be stopped before it can be closed */
1053         if (dev->data->dev_started == 1) {
1054                 CDEV_LOG_ERR("Device %u must be stopped before closing",
1055                                 dev_id);
1056                 return -EBUSY;
1057         }
1058
1059         /* We can't close the device if there are outstanding sessions in use */
1060         if (dev->data->session_pool != NULL) {
1061                 if (!rte_mempool_full(dev->data->session_pool)) {
1062                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
1063                                         "has sessions still in use, free "
1064                                         "all sessions before calling close",
1065                                         (unsigned)dev_id);
1066                         return -EBUSY;
1067                 }
1068         }
1069
1070         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
1071         retval = (*dev->dev_ops->dev_close)(dev);
1072
1073         if (retval < 0)
1074                 return retval;
1075
1076         return 0;
1077 }
1078
1079 int
1080 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
1081                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
1082 {
1083         struct rte_cryptodev *dev;
1084
1085         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1086                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1087                 return -EINVAL;
1088         }
1089
1090         dev = &rte_crypto_devices[dev_id];
1091         if (queue_pair_id >= dev->data->nb_queue_pairs) {
1092                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
1093                 return -EINVAL;
1094         }
1095
1096         if (dev->data->dev_started) {
1097                 CDEV_LOG_ERR(
1098                     "device %d must be stopped to allow configuration", dev_id);
1099                 return -EBUSY;
1100         }
1101
1102         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
1103
1104         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
1105                         socket_id);
1106 }
1107
1108
1109 int
1110 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
1111 {
1112         struct rte_cryptodev *dev;
1113
1114         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1115                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1116                 return -ENODEV;
1117         }
1118
1119         if (stats == NULL) {
1120                 CDEV_LOG_ERR("Invalid stats ptr");
1121                 return -EINVAL;
1122         }
1123
1124         dev = &rte_crypto_devices[dev_id];
1125         memset(stats, 0, sizeof(*stats));
1126
1127         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1128         (*dev->dev_ops->stats_get)(dev, stats);
1129         return 0;
1130 }
1131
1132 void
1133 rte_cryptodev_stats_reset(uint8_t dev_id)
1134 {
1135         struct rte_cryptodev *dev;
1136
1137         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1138                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1139                 return;
1140         }
1141
1142         dev = &rte_crypto_devices[dev_id];
1143
1144         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1145         (*dev->dev_ops->stats_reset)(dev);
1146 }
1147
1148
1149 void
1150 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1151 {
1152         struct rte_cryptodev *dev;
1153
1154         if (dev_id >= cryptodev_globals.nb_devs) {
1155                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1156                 return;
1157         }
1158
1159         dev = &rte_crypto_devices[dev_id];
1160
1161         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1162
1163         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1164         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1165
1166         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
1167         if (dev->driver)
1168                 dev_info->driver_name = dev->driver->pci_drv.driver.name;
1169 }
1170
1171
1172 int
1173 rte_cryptodev_callback_register(uint8_t dev_id,
1174                         enum rte_cryptodev_event_type event,
1175                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1176 {
1177         struct rte_cryptodev *dev;
1178         struct rte_cryptodev_callback *user_cb;
1179
1180         if (!cb_fn)
1181                 return -EINVAL;
1182
1183         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1184                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1185                 return -EINVAL;
1186         }
1187
1188         dev = &rte_crypto_devices[dev_id];
1189         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1190
1191         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1192                 if (user_cb->cb_fn == cb_fn &&
1193                         user_cb->cb_arg == cb_arg &&
1194                         user_cb->event == event) {
1195                         break;
1196                 }
1197         }
1198
1199         /* create a new callback. */
1200         if (user_cb == NULL) {
1201                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1202                                 sizeof(struct rte_cryptodev_callback), 0);
1203                 if (user_cb != NULL) {
1204                         user_cb->cb_fn = cb_fn;
1205                         user_cb->cb_arg = cb_arg;
1206                         user_cb->event = event;
1207                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1208                 }
1209         }
1210
1211         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1212         return (user_cb == NULL) ? -ENOMEM : 0;
1213 }
1214
1215 int
1216 rte_cryptodev_callback_unregister(uint8_t dev_id,
1217                         enum rte_cryptodev_event_type event,
1218                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1219 {
1220         int ret;
1221         struct rte_cryptodev *dev;
1222         struct rte_cryptodev_callback *cb, *next;
1223
1224         if (!cb_fn)
1225                 return -EINVAL;
1226
1227         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1228                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1229                 return -EINVAL;
1230         }
1231
1232         dev = &rte_crypto_devices[dev_id];
1233         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1234
1235         ret = 0;
1236         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1237
1238                 next = TAILQ_NEXT(cb, next);
1239
1240                 if (cb->cb_fn != cb_fn || cb->event != event ||
1241                                 (cb->cb_arg != (void *)-1 &&
1242                                 cb->cb_arg != cb_arg))
1243                         continue;
1244
1245                 /*
1246                  * if this callback is not executing right now,
1247                  * then remove it.
1248                  */
1249                 if (cb->active == 0) {
1250                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1251                         rte_free(cb);
1252                 } else {
1253                         ret = -EAGAIN;
1254                 }
1255         }
1256
1257         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1258         return ret;
1259 }
1260
1261 void
1262 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1263         enum rte_cryptodev_event_type event)
1264 {
1265         struct rte_cryptodev_callback *cb_lst;
1266         struct rte_cryptodev_callback dev_cb;
1267
1268         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1269         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1270                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1271                         continue;
1272                 dev_cb = *cb_lst;
1273                 cb_lst->active = 1;
1274                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1275                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1276                                                 dev_cb.cb_arg);
1277                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1278                 cb_lst->active = 0;
1279         }
1280         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1281 }
1282
1283
1284 static void
1285 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1286                 void *opaque_arg,
1287                 void *_sess,
1288                 __rte_unused unsigned i)
1289 {
1290         struct rte_cryptodev_sym_session *sess = _sess;
1291         struct rte_cryptodev *dev = opaque_arg;
1292
1293         memset(sess, 0, mp->elt_size);
1294
1295         sess->dev_id = dev->data->dev_id;
1296         sess->dev_type = dev->dev_type;
1297         sess->mp = mp;
1298
1299         if (dev->dev_ops->session_initialize)
1300                 (*dev->dev_ops->session_initialize)(mp, sess);
1301 }
1302
1303 static int
1304 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1305                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1306 {
1307         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1308         unsigned priv_sess_size;
1309
1310         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1311                         dev->data->dev_id);
1312         if (n > sizeof(mp_name)) {
1313                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1314                 return -ENOMEM;
1315         }
1316
1317         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1318         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1319         if (priv_sess_size == 0) {
1320                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1321                                                 dev->data->name);
1322                 return -ENOMEM;
1323         }
1324
1325         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1326                         priv_sess_size;
1327
1328         dev->data->session_pool = rte_mempool_lookup(mp_name);
1329         if (dev->data->session_pool != NULL) {
1330                 if ((dev->data->session_pool->elt_size != elt_size) ||
1331                                 (dev->data->session_pool->cache_size <
1332                                 obj_cache_size) ||
1333                                 (dev->data->session_pool->size < nb_objs)) {
1334
1335                         CDEV_LOG_ERR("%s mempool already exists with different"
1336                                         " initialization parameters", mp_name);
1337                         dev->data->session_pool = NULL;
1338                         return -ENOMEM;
1339                 }
1340         } else {
1341                 dev->data->session_pool = rte_mempool_create(
1342                                 mp_name, /* mempool name */
1343                                 nb_objs, /* number of elements*/
1344                                 elt_size, /* element size*/
1345                                 obj_cache_size, /* Cache size*/
1346                                 0, /* private data size */
1347                                 NULL, /* obj initialization constructor */
1348                                 NULL, /* obj initialization constructor arg */
1349                                 rte_cryptodev_sym_session_init,
1350                                 /**< obj constructor*/
1351                                 dev, /* obj constructor arg */
1352                                 socket_id, /* socket id */
1353                                 0); /* flags */
1354
1355                 if (dev->data->session_pool == NULL) {
1356                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1357                         return -ENOMEM;
1358                 }
1359         }
1360
1361         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1362         return 0;
1363 }
1364
1365 struct rte_cryptodev_sym_session *
1366 rte_cryptodev_sym_session_create(uint8_t dev_id,
1367                 struct rte_crypto_sym_xform *xform)
1368 {
1369         struct rte_cryptodev *dev;
1370         struct rte_cryptodev_sym_session *sess;
1371         void *_sess;
1372
1373         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1374                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1375                 return NULL;
1376         }
1377
1378         dev = &rte_crypto_devices[dev_id];
1379
1380         /* Allocate a session structure from the session pool */
1381         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1382                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1383                 return NULL;
1384         }
1385
1386         sess = _sess;
1387
1388         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1389         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1390                         NULL) {
1391                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1392                                 dev_id);
1393
1394                 /* Return session to mempool */
1395                 rte_mempool_put(sess->mp, _sess);
1396                 return NULL;
1397         }
1398
1399         return sess;
1400 }
1401
1402 int
1403 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
1404                 struct rte_cryptodev_sym_session *sess)
1405 {
1406         struct rte_cryptodev *dev;
1407
1408         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1409                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1410                 return -EINVAL;
1411         }
1412
1413         dev = &rte_crypto_devices[sess->dev_id];
1414
1415         /* The API is optional, not returning error if driver do not suuport */
1416         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1417         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
1418                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1419                                 sess->dev_id, qp_id);
1420                 return -EPERM;
1421         }
1422
1423         return 0;
1424 }
1425
1426 int
1427 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
1428                 struct rte_cryptodev_sym_session *sess)
1429 {
1430         struct rte_cryptodev *dev;
1431
1432         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1433                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1434                 return -EINVAL;
1435         }
1436
1437         dev = &rte_crypto_devices[sess->dev_id];
1438
1439         /* The API is optional, not returning error if driver do not suuport */
1440         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1441         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
1442                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1443                                 sess->dev_id, qp_id);
1444                 return -EPERM;
1445         }
1446
1447         return 0;
1448 }
1449 struct rte_cryptodev_sym_session *
1450 rte_cryptodev_sym_session_free(uint8_t dev_id,
1451                 struct rte_cryptodev_sym_session *sess)
1452 {
1453         struct rte_cryptodev *dev;
1454
1455         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1456                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1457                 return sess;
1458         }
1459
1460         dev = &rte_crypto_devices[dev_id];
1461
1462         /* Check the session belongs to this device type */
1463         if (sess->dev_type != dev->dev_type)
1464                 return sess;
1465
1466         /* Let device implementation clear session material */
1467         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1468         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1469
1470         /* Return session to mempool */
1471         rte_mempool_put(sess->mp, (void *)sess);
1472
1473         return NULL;
1474 }
1475
1476 /** Initialise rte_crypto_op mempool element */
1477 static void
1478 rte_crypto_op_init(struct rte_mempool *mempool,
1479                 void *opaque_arg,
1480                 void *_op_data,
1481                 __rte_unused unsigned i)
1482 {
1483         struct rte_crypto_op *op = _op_data;
1484         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1485
1486         memset(_op_data, 0, mempool->elt_size);
1487
1488         __rte_crypto_op_reset(op, type);
1489
1490         op->phys_addr = rte_mem_virt2phy(_op_data);
1491         op->mempool = mempool;
1492 }
1493
1494
1495 struct rte_mempool *
1496 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1497                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1498                 int socket_id)
1499 {
1500         struct rte_crypto_op_pool_private *priv;
1501
1502         unsigned elt_size = sizeof(struct rte_crypto_op) +
1503                         sizeof(struct rte_crypto_sym_op) +
1504                         priv_size;
1505
1506         /* lookup mempool in case already allocated */
1507         struct rte_mempool *mp = rte_mempool_lookup(name);
1508
1509         if (mp != NULL) {
1510                 priv = (struct rte_crypto_op_pool_private *)
1511                                 rte_mempool_get_priv(mp);
1512
1513                 if (mp->elt_size != elt_size ||
1514                                 mp->cache_size < cache_size ||
1515                                 mp->size < nb_elts ||
1516                                 priv->priv_size <  priv_size) {
1517                         mp = NULL;
1518                         CDEV_LOG_ERR("Mempool %s already exists but with "
1519                                         "incompatible parameters", name);
1520                         return NULL;
1521                 }
1522                 return mp;
1523         }
1524
1525         mp = rte_mempool_create(
1526                         name,
1527                         nb_elts,
1528                         elt_size,
1529                         cache_size,
1530                         sizeof(struct rte_crypto_op_pool_private),
1531                         NULL,
1532                         NULL,
1533                         rte_crypto_op_init,
1534                         &type,
1535                         socket_id,
1536                         0);
1537
1538         if (mp == NULL) {
1539                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1540                 return NULL;
1541         }
1542
1543         priv = (struct rte_crypto_op_pool_private *)
1544                         rte_mempool_get_priv(mp);
1545
1546         priv->priv_size = priv_size;
1547         priv->type = type;
1548
1549         return mp;
1550 }
1551
1552 int
1553 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1554 {
1555         struct rte_cryptodev *dev = NULL;
1556         uint32_t i = 0;
1557
1558         if (name == NULL)
1559                 return -EINVAL;
1560
1561         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1562                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1563                                 "%s_%u", dev_name_prefix, i);
1564
1565                 if (ret < 0)
1566                         return ret;
1567
1568                 dev = rte_cryptodev_pmd_get_named_dev(name);
1569                 if (!dev)
1570                         return 0;
1571         }
1572
1573         return -1;
1574 }