lib/librte_cryptodev/rte_cryptodev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/types.h>
  34 #include <sys/queue.h>
  35 #include <ctype.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <stdarg.h>
  40 #include <errno.h>
  41 #include <stdint.h>
  42 #include <inttypes.h>
  43 #include <netinet/in.h>
  44
  45 #include <rte_byteorder.h>
  46 #include <rte_log.h>
  47 #include <rte_debug.h>
  48 #include <rte_dev.h>
  49 #include <rte_interrupts.h>
  50 #include <rte_pci.h>
  51 #include <rte_memory.h>
  52 #include <rte_memcpy.h>
  53 #include <rte_memzone.h>
  54 #include <rte_launch.h>
  55 #include <rte_tailq.h>
  56 #include <rte_eal.h>
  57 #include <rte_per_lcore.h>
  58 #include <rte_lcore.h>
  59 #include <rte_atomic.h>
  60 #include <rte_branch_prediction.h>
  61 #include <rte_common.h>
  62 #include <rte_mempool.h>
  63 #include <rte_malloc.h>
  64 #include <rte_mbuf.h>
  65 #include <rte_errno.h>
  66 #include <rte_spinlock.h>
  67 #include <rte_string_fns.h>
  68
  69 #include "rte_crypto.h"
  70 #include "rte_cryptodev.h"
  71 #include "rte_cryptodev_pmd.h"
  72
  73 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  74
  75 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  76
  77 static struct rte_cryptodev_global cryptodev_globals = {
  78                 .devs                   = &rte_crypto_devices[0],
  79                 .data                   = { NULL },
  80                 .nb_devs                = 0,
  81                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  82 };
  83
  84 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  85
  86 /* spinlock for crypto device callbacks */
  87 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  88
  89
  90 /**
  91  * The user application callback description.
  92  *
  93  * It contains callback address to be registered by user application,
  94  * the pointer to the parameters for callback, and the event type.
  95  */
  96 struct rte_cryptodev_callback {
  97         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  98         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
  99         void *cb_arg;                           /**< Parameter for callback */
 100         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
 101         uint32_t active;                        /**< Callback is executing */
 102 };
 103
 104 #define RTE_CRYPTODEV_VDEV_NAME                         ("name")
 105 #define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG                ("max_nb_queue_pairs")
 106 #define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG              ("max_nb_sessions")
 107 #define RTE_CRYPTODEV_VDEV_SOCKET_ID                    ("socket_id")
 108
 109 static const char *cryptodev_vdev_valid_params[] = {
 110         RTE_CRYPTODEV_VDEV_NAME,
 111         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 112         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 113         RTE_CRYPTODEV_VDEV_SOCKET_ID
 114 };
 115
 116 /**
 117  * The crypto cipher algorithm strings identifiers.
 118  * It could be used in application command line.
 119  */
 120 const char *
 121 rte_crypto_cipher_algorithm_strings[] = {
 122         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
 123         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
 124         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
 125
 126         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
 127         [RTE_CRYPTO_CIPHER_AES_CCM]     = "aes-ccm",
 128         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
 129         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
 130         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
 131         [RTE_CRYPTO_CIPHER_AES_GCM]     = "aes-gcm",
 132         [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
 133         [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",
 134
 135         [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",
 136
 137         [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
 138         [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",
 139
 140         [RTE_CRYPTO_CIPHER_NULL]        = "null",
 141
 142         [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
 143         [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
 144         [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
 145 };
 146
 147 /**
 148  * The crypto cipher operation strings identifiers.
 149  * It could be used in application command line.
 150  */
 151 const char *
 152 rte_crypto_cipher_operation_strings[] = {
 153                 [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
 154                 [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
 155 };
 156
 157 /**
 158  * The crypto auth algorithm strings identifiers.
 159  * It could be used in application command line.
 160  */
 161 const char *
 162 rte_crypto_auth_algorithm_strings[] = {
 163         [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
 164         [RTE_CRYPTO_AUTH_AES_CCM]       = "aes-ccm",
 165         [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
 166         [RTE_CRYPTO_AUTH_AES_GCM]       = "aes-gcm",
 167         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 168         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 169
 170         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 171         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 172
 173         [RTE_CRYPTO_AUTH_NULL]          = "null",
 174
 175         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 176         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 177
 178         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 179         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 180         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 181         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 182         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 183         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 184         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 185         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 186
 187         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 188         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 189         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 190 };
 191
 192 int
 193 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 194                 const char *algo_string)
 195 {
 196         unsigned int i;
 197
 198         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 199                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 200                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 201                         return 0;
 202                 }
 203         }
 204
 205         /* Invalid string */
 206         return -1;
 207 }
 208
 209 int
 210 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 211                 const char *algo_string)
 212 {
 213         unsigned int i;
 214
 215         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 216                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 217                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 218                         return 0;
 219                 }
 220         }
 221
 222         /* Invalid string */
 223         return -1;
 224 }
 225
 226 /**
 227  * The crypto auth operation strings identifiers.
 228  * It could be used in application command line.
 229  */
 230 const char *
 231 rte_crypto_auth_operation_strings[] = {
 232                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 233                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 234 };
 235
 236 /** Parse integer from integer argument */
 237 static int
 238 parse_integer_arg(const char *key __rte_unused,
 239                 const char *value, void *extra_args)
 240 {
 241         int *i = extra_args;
 242
 243         *i = atoi(value);
 244         if (*i < 0) {
 245                 CDEV_LOG_ERR("Argument has to be positive.");
 246                 return -1;
 247         }
 248
 249         return 0;
 250 }
 251
 252 /** Parse name */
 253 static int
 254 parse_name_arg(const char *key __rte_unused,
 255                 const char *value, void *extra_args)
 256 {
 257         struct rte_crypto_vdev_init_params *params = extra_args;
 258
 259         if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
 260                 CDEV_LOG_ERR("Invalid name %s, should be less than "
 261                                 "%u bytes", value,
 262                                 RTE_CRYPTODEV_NAME_MAX_LEN - 1);
 263                 return -1;
 264         }
 265
 266         strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
 267
 268         return 0;
 269 }
 270
 271 int
 272 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
 273                 const char *input_args)
 274 {
 275         struct rte_kvargs *kvlist = NULL;
 276         int ret = 0;
 277
 278         if (params == NULL)
 279                 return -EINVAL;
 280
 281         if (input_args) {
 282                 kvlist = rte_kvargs_parse(input_args,
 283                                 cryptodev_vdev_valid_params);
 284                 if (kvlist == NULL)
 285                         return -1;
 286
 287                 ret = rte_kvargs_process(kvlist,
 288                                         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 289                                         &parse_integer_arg,
 290                                         &params->max_nb_queue_pairs);
 291                 if (ret < 0)
 292                         goto free_kvlist;
 293
 294                 ret = rte_kvargs_process(kvlist,
 295                                         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 296                                         &parse_integer_arg,
 297                                         &params->max_nb_sessions);
 298                 if (ret < 0)
 299                         goto free_kvlist;
 300
 301                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 302                                         &parse_integer_arg,
 303                                         &params->socket_id);
 304                 if (ret < 0)
 305                         goto free_kvlist;
 306
 307                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
 308                                         &parse_name_arg,
 309                                         params);
 310                 if (ret < 0)
 311                         goto free_kvlist;
 312         }
 313
 314 free_kvlist:
 315         rte_kvargs_free(kvlist);
 316         return ret;
 317 }
 318
 319 const struct rte_cryptodev_symmetric_capability *
 320 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 321                 const struct rte_cryptodev_sym_capability_idx *idx)
 322 {
 323         const struct rte_cryptodev_capabilities *capability;
 324         struct rte_cryptodev_info dev_info;
 325         int i = 0;
 326
 327         rte_cryptodev_info_get(dev_id, &dev_info);
 328
 329         while ((capability = &dev_info.capabilities[i++])->op !=
 330                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 331                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 332                         continue;
 333
 334                 if (capability->sym.xform_type != idx->type)
 335                         continue;
 336
 337                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 338                         capability->sym.auth.algo == idx->algo.auth)
 339                         return &capability->sym;
 340
 341                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 342                         capability->sym.cipher.algo == idx->algo.cipher)
 343                         return &capability->sym;
 344         }
 345
 346         return NULL;
 347
 348 }
 349
 350 #define param_range_check(x, y) \
 351         (((x < y.min) || (x > y.max)) || \
 352         (y.increment != 0 && (x % y.increment) != 0))
 353
 354 int
 355 rte_cryptodev_sym_capability_check_cipher(
 356                 const struct rte_cryptodev_symmetric_capability *capability,
 357                 uint16_t key_size, uint16_t iv_size)
 358 {
 359         if (param_range_check(key_size, capability->cipher.key_size))
 360                 return -1;
 361
 362         if (param_range_check(iv_size, capability->cipher.iv_size))
 363                 return -1;
 364
 365         return 0;
 366 }
 367
 368 int
 369 rte_cryptodev_sym_capability_check_auth(
 370                 const struct rte_cryptodev_symmetric_capability *capability,
 371                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size)
 372 {
 373         if (param_range_check(key_size, capability->auth.key_size))
 374                 return -1;
 375
 376         if (param_range_check(digest_size, capability->auth.digest_size))
 377                 return -1;
 378
 379         if (param_range_check(aad_size, capability->auth.aad_size))
 380                 return -1;
 381
 382         return 0;
 383 }
 384
 385
 386 const char *
 387 rte_cryptodev_get_feature_name(uint64_t flag)
 388 {
 389         switch (flag) {
 390         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 391                 return "SYMMETRIC_CRYPTO";
 392         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 393                 return "ASYMMETRIC_CRYPTO";
 394         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 395                 return "SYM_OPERATION_CHAINING";
 396         case RTE_CRYPTODEV_FF_CPU_SSE:
 397                 return "CPU_SSE";
 398         case RTE_CRYPTODEV_FF_CPU_AVX:
 399                 return "CPU_AVX";
 400         case RTE_CRYPTODEV_FF_CPU_AVX2:
 401                 return "CPU_AVX2";
 402         case RTE_CRYPTODEV_FF_CPU_AESNI:
 403                 return "CPU_AESNI";
 404         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 405                 return "HW_ACCELERATED";
 406         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 407                 return "MBUF_SCATTER_GATHER";
 408         case RTE_CRYPTODEV_FF_CPU_NEON:
 409                 return "CPU_NEON";
 410         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 411                 return "CPU_ARM_CE";
 412         default:
 413                 return NULL;
 414         }
 415 }
 416
 417 int
 418 rte_cryptodev_create_vdev(const char *name, const char *args)
 419 {
 420         return rte_vdev_init(name, args);
 421 }
 422
 423 struct rte_cryptodev *
 424 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 425 {
 426         return &rte_cryptodev_globals->devs[dev_id];
 427 }
 428
 429 struct rte_cryptodev *
 430 rte_cryptodev_pmd_get_named_dev(const char *name)
 431 {
 432         struct rte_cryptodev *dev;
 433         unsigned int i;
 434
 435         if (name == NULL)
 436                 return NULL;
 437
 438         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 439                 dev = &rte_cryptodev_globals->devs[i];
 440
 441                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 442                                 (strcmp(dev->data->name, name) == 0))
 443                         return dev;
 444         }
 445
 446         return NULL;
 447 }
 448
 449 unsigned int
 450 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 451 {
 452         struct rte_cryptodev *dev = NULL;
 453
 454         if (dev_id >= rte_cryptodev_globals->nb_devs)
 455                 return 0;
 456
 457         dev = rte_cryptodev_pmd_get_dev(dev_id);
 458         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 459                 return 0;
 460         else
 461                 return 1;
 462 }
 463
 464
 465 int
 466 rte_cryptodev_get_dev_id(const char *name)
 467 {
 468         unsigned i;
 469
 470         if (name == NULL)
 471                 return -1;
 472
 473         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 474                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 475                                 == 0) &&
 476                                 (rte_cryptodev_globals->devs[i].attached ==
 477                                                 RTE_CRYPTODEV_ATTACHED))
 478                         return i;
 479
 480         return -1;
 481 }
 482
 483 uint8_t
 484 rte_cryptodev_count(void)
 485 {
 486         return rte_cryptodev_globals->nb_devs;
 487 }
 488
 489 uint8_t
 490 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 491 {
 492         uint8_t i, dev_count = 0;
 493
 494         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 495                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 496                         rte_cryptodev_globals->devs[i].attached ==
 497                                         RTE_CRYPTODEV_ATTACHED)
 498                         dev_count++;
 499
 500         return dev_count;
 501 }
 502
 503 uint8_t
 504 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 505         uint8_t nb_devices)
 506 {
 507         uint8_t i, count = 0;
 508         struct rte_cryptodev *devs = rte_cryptodev_globals->devs;
 509         uint8_t max_devs = rte_cryptodev_globals->max_devs;
 510
 511         for (i = 0; i < max_devs && count < nb_devices; i++) {
 512
 513                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 514                         int cmp;
 515
 516                         cmp = strncmp(devs[i].device->driver->name,
 517                                         driver_name,
 518                                         strlen(driver_name));
 519
 520                         if (cmp == 0)
 521                                 devices[count++] = devs[i].data->dev_id;
 522                 }
 523         }
 524
 525         return count;
 526 }
 527
 528 int
 529 rte_cryptodev_socket_id(uint8_t dev_id)
 530 {
 531         struct rte_cryptodev *dev;
 532
 533         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 534                 return -1;
 535
 536         dev = rte_cryptodev_pmd_get_dev(dev_id);
 537
 538         return dev->data->socket_id;
 539 }
 540
 541 static inline int
 542 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 543                 int socket_id)
 544 {
 545         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 546         const struct rte_memzone *mz;
 547         int n;
 548
 549         /* generate memzone name */
 550         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 551         if (n >= (int)sizeof(mz_name))
 552                 return -EINVAL;
 553
 554         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 555                 mz = rte_memzone_reserve(mz_name,
 556                                 sizeof(struct rte_cryptodev_data),
 557                                 socket_id, 0);
 558         } else
 559                 mz = rte_memzone_lookup(mz_name);
 560
 561         if (mz == NULL)
 562                 return -ENOMEM;
 563
 564         *data = mz->addr;
 565         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 566                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 567
 568         return 0;
 569 }
 570
 571 static uint8_t
 572 rte_cryptodev_find_free_device_index(void)
 573 {
 574         uint8_t dev_id;
 575
 576         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 577                 if (rte_crypto_devices[dev_id].attached ==
 578                                 RTE_CRYPTODEV_DETACHED)
 579                         return dev_id;
 580         }
 581         return RTE_CRYPTO_MAX_DEVS;
 582 }
 583
 584 struct rte_cryptodev *
 585 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 586 {
 587         struct rte_cryptodev *cryptodev;
 588         uint8_t dev_id;
 589
 590         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 591                 CDEV_LOG_ERR("Crypto device with name %s already "
 592                                 "allocated!", name);
 593                 return NULL;
 594         }
 595
 596         dev_id = rte_cryptodev_find_free_device_index();
 597         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 598                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 599                 return NULL;
 600         }
 601
 602         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 603
 604         if (cryptodev->data == NULL) {
 605                 struct rte_cryptodev_data *cryptodev_data =
 606                                 cryptodev_globals.data[dev_id];
 607
 608                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 609                                 socket_id);
 610
 611                 if (retval < 0 || cryptodev_data == NULL)
 612                         return NULL;
 613
 614                 cryptodev->data = cryptodev_data;
 615
 616                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 617                                 "%s", name);
 618
 619                 cryptodev->data->dev_id = dev_id;
 620                 cryptodev->data->socket_id = socket_id;
 621                 cryptodev->data->dev_started = 0;
 622
 623                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 624
 625                 cryptodev_globals.nb_devs++;
 626         }
 627
 628         return cryptodev;
 629 }
 630
 631 int
 632 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 633 {
 634         int ret;
 635
 636         if (cryptodev == NULL)
 637                 return -EINVAL;
 638
 639         ret = rte_cryptodev_close(cryptodev->data->dev_id);
 640         if (ret < 0)
 641                 return ret;
 642
 643         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 644         cryptodev_globals.nb_devs--;
 645         return 0;
 646 }
 647
 648 struct rte_cryptodev *
 649 rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 650                 int socket_id, struct rte_vdev_device *vdev)
 651 {
 652         struct rte_cryptodev *cryptodev;
 653
 654         /* allocate device structure */
 655         cryptodev = rte_cryptodev_pmd_allocate(name, socket_id);
 656         if (cryptodev == NULL)
 657                 return NULL;
 658
 659         /* allocate private device structure */
 660         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 661                 cryptodev->data->dev_private =
 662                                 rte_zmalloc_socket("cryptodev device private",
 663                                                 dev_private_size,
 664                                                 RTE_CACHE_LINE_SIZE,
 665                                                 socket_id);
 666
 667                 if (cryptodev->data->dev_private == NULL)
 668                         rte_panic("Cannot allocate memzone for private device"
 669                                         " data");
 670         }
 671
 672         cryptodev->device = &vdev->device;
 673
 674         /* initialise user call-back tail queue */
 675         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 676
 677         return cryptodev;
 678 }
 679
 680 int
 681 rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
 682                         struct rte_pci_device *pci_dev)
 683 {
 684         struct rte_cryptodev_driver *cryptodrv;
 685         struct rte_cryptodev *cryptodev;
 686
 687         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 688
 689         int retval;
 690
 691         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 692         if (cryptodrv == NULL)
 693                 return -ENODEV;
 694
 695         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 696                         sizeof(cryptodev_name));
 697
 698         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
 699         if (cryptodev == NULL)
 700                 return -ENOMEM;
 701
 702         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 703                 cryptodev->data->dev_private =
 704                                 rte_zmalloc_socket(
 705                                                 "cryptodev private structure",
 706                                                 cryptodrv->dev_private_size,
 707                                                 RTE_CACHE_LINE_SIZE,
 708                                                 rte_socket_id());
 709
 710                 if (cryptodev->data->dev_private == NULL)
 711                         rte_panic("Cannot allocate memzone for private "
 712                                         "device data");
 713         }
 714
 715         cryptodev->device = &pci_dev->device;
 716         cryptodev->driver = cryptodrv;
 717
 718         /* init user callbacks */
 719         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 720
 721         /* Invoke PMD device initialization function */
 722         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 723         if (retval == 0)
 724                 return 0;
 725
 726         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 727                         " failed", pci_drv->driver.name,
 728                         (unsigned) pci_dev->id.vendor_id,
 729                         (unsigned) pci_dev->id.device_id);
 730
 731         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 732                 rte_free(cryptodev->data->dev_private);
 733
 734         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 735         cryptodev_globals.nb_devs--;
 736
 737         return -ENXIO;
 738 }
 739
 740 int
 741 rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 742 {
 743         const struct rte_cryptodev_driver *cryptodrv;
 744         struct rte_cryptodev *cryptodev;
 745         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 746         int ret;
 747
 748         if (pci_dev == NULL)
 749                 return -EINVAL;
 750
 751         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 752                         sizeof(cryptodev_name));
 753
 754         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 755         if (cryptodev == NULL)
 756                 return -ENODEV;
 757
 758         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 759         if (cryptodrv == NULL)
 760                 return -ENODEV;
 761
 762         /* Invoke PMD device uninit function */
 763         if (*cryptodrv->cryptodev_uninit) {
 764                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 765                 if (ret)
 766                         return ret;
 767         }
 768
 769         /* free crypto device */
 770         rte_cryptodev_pmd_release_device(cryptodev);
 771
 772         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 773                 rte_free(cryptodev->data->dev_private);
 774
 775         cryptodev->device = NULL;
 776         cryptodev->driver = NULL;
 777         cryptodev->data = NULL;
 778
 779         return 0;
 780 }
 781
 782 uint16_t
 783 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 784 {
 785         struct rte_cryptodev *dev;
 786
 787         dev = &rte_crypto_devices[dev_id];
 788         return dev->data->nb_queue_pairs;
 789 }
 790
 791 static int
 792 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 793                 int socket_id)
 794 {
 795         struct rte_cryptodev_info dev_info;
 796         void **qp;
 797         unsigned i;
 798
 799         if ((dev == NULL) || (nb_qpairs < 1)) {
 800                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 801                                                         dev, nb_qpairs);
 802                 return -EINVAL;
 803         }
 804
 805         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 806                         nb_qpairs, dev->data->dev_id);
 807
 808         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 809
 810         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 811         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 812
 813         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 814                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 815                                 nb_qpairs, dev->data->dev_id);
 816             return -EINVAL;
 817         }
 818
 819         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 820                 dev->data->queue_pairs = rte_zmalloc_socket(
 821                                 "cryptodev->queue_pairs",
 822                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 823                                 RTE_CACHE_LINE_SIZE, socket_id);
 824
 825                 if (dev->data->queue_pairs == NULL) {
 826                         dev->data->nb_queue_pairs = 0;
 827                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 828                                                         "nb_queues %u",
 829                                                         nb_qpairs);
 830                         return -(ENOMEM);
 831                 }
 832         } else { /* re-configure */
 833                 int ret;
 834                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 835
 836                 qp = dev->data->queue_pairs;
 837
 838                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 839                                 -ENOTSUP);
 840
 841                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 842                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 843                         if (ret < 0)
 844                                 return ret;
 845                 }
 846
 847                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 848                                 RTE_CACHE_LINE_SIZE);
 849                 if (qp == NULL) {
 850                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 851                                                 " nb_queues %u", nb_qpairs);
 852                         return -(ENOMEM);
 853                 }
 854
 855                 if (nb_qpairs > old_nb_queues) {
 856                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 857
 858                         memset(qp + old_nb_queues, 0,
 859                                 sizeof(qp[0]) * new_qs);
 860                 }
 861
 862                 dev->data->queue_pairs = qp;
 863
 864         }
 865         dev->data->nb_queue_pairs = nb_qpairs;
 866         return 0;
 867 }
 868
 869 int
 870 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 871 {
 872         struct rte_cryptodev *dev;
 873
 874         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 875                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 876                 return -EINVAL;
 877         }
 878
 879         dev = &rte_crypto_devices[dev_id];
 880         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 881                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 882                 return -EINVAL;
 883         }
 884
 885         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 886
 887         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 888
 889 }
 890
 891 int
 892 rte_cryptodev_queue_pair_stop(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_stop, -ENOTSUP);
 908
 909         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 910
 911 }
 912
 913 static int
 914 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 915                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 916
 917 int
 918 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 919 {
 920         struct rte_cryptodev *dev;
 921         int diag;
 922
 923         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 924                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 925                 return -EINVAL;
 926         }
 927
 928         dev = &rte_crypto_devices[dev_id];
 929
 930         if (dev->data->dev_started) {
 931                 CDEV_LOG_ERR(
 932                     "device %d must be stopped to allow configuration", dev_id);
 933                 return -EBUSY;
 934         }
 935
 936         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 937
 938         /* Setup new number of queue pairs and reconfigure device. */
 939         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 940                         config->socket_id);
 941         if (diag != 0) {
 942                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 943                                 dev_id, diag);
 944                 return diag;
 945         }
 946
 947         /* Setup Session mempool for device */
 948         diag = rte_cryptodev_sym_session_pool_create(dev,
 949                         config->session_mp.nb_objs,
 950                         config->session_mp.cache_size,
 951                         config->socket_id);
 952         if (diag != 0)
 953                 return diag;
 954
 955         return (*dev->dev_ops->dev_configure)(dev, config);
 956 }
 957
 958
 959 int
 960 rte_cryptodev_start(uint8_t dev_id)
 961 {
 962         struct rte_cryptodev *dev;
 963         int diag;
 964
 965         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 966
 967         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 968                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 969                 return -EINVAL;
 970         }
 971
 972         dev = &rte_crypto_devices[dev_id];
 973
 974         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 975
 976         if (dev->data->dev_started != 0) {
 977                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 978                         dev_id);
 979                 return 0;
 980         }
 981
 982         diag = (*dev->dev_ops->dev_start)(dev);
 983         if (diag == 0)
 984                 dev->data->dev_started = 1;
 985         else
 986                 return diag;
 987
 988         return 0;
 989 }
 990
 991 void
 992 rte_cryptodev_stop(uint8_t dev_id)
 993 {
 994         struct rte_cryptodev *dev;
 995
 996         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 997                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 998                 return;
 999         }
1000
1001         dev = &rte_crypto_devices[dev_id];
1002
1003         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
1004
1005         if (dev->data->dev_started == 0) {
1006                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
1007                         dev_id);
1008                 return;
1009         }
1010
1011         dev->data->dev_started = 0;
1012         (*dev->dev_ops->dev_stop)(dev);
1013 }
1014
1015 int
1016 rte_cryptodev_close(uint8_t dev_id)
1017 {
1018         struct rte_cryptodev *dev;
1019         int retval;
1020
1021         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1022                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1023                 return -1;
1024         }
1025
1026         dev = &rte_crypto_devices[dev_id];
1027
1028         /* Device must be stopped before it can be closed */
1029         if (dev->data->dev_started == 1) {
1030                 CDEV_LOG_ERR("Device %u must be stopped before closing",
1031                                 dev_id);
1032                 return -EBUSY;
1033         }
1034
1035         /* We can't close the device if there are outstanding sessions in use */
1036         if (dev->data->session_pool != NULL) {
1037                 if (!rte_mempool_full(dev->data->session_pool)) {
1038                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
1039                                         "has sessions still in use, free "
1040                                         "all sessions before calling close",
1041                                         (unsigned)dev_id);
1042                         return -EBUSY;
1043                 }
1044         }
1045
1046         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
1047         retval = (*dev->dev_ops->dev_close)(dev);
1048
1049         if (retval < 0)
1050                 return retval;
1051
1052         return 0;
1053 }
1054
1055 int
1056 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
1057                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
1058 {
1059         struct rte_cryptodev *dev;
1060
1061         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1062                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1063                 return -EINVAL;
1064         }
1065
1066         dev = &rte_crypto_devices[dev_id];
1067         if (queue_pair_id >= dev->data->nb_queue_pairs) {
1068                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
1069                 return -EINVAL;
1070         }
1071
1072         if (dev->data->dev_started) {
1073                 CDEV_LOG_ERR(
1074                     "device %d must be stopped to allow configuration", dev_id);
1075                 return -EBUSY;
1076         }
1077
1078         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
1079
1080         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
1081                         socket_id);
1082 }
1083
1084
1085 int
1086 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
1087 {
1088         struct rte_cryptodev *dev;
1089
1090         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1091                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1092                 return -ENODEV;
1093         }
1094
1095         if (stats == NULL) {
1096                 CDEV_LOG_ERR("Invalid stats ptr");
1097                 return -EINVAL;
1098         }
1099
1100         dev = &rte_crypto_devices[dev_id];
1101         memset(stats, 0, sizeof(*stats));
1102
1103         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1104         (*dev->dev_ops->stats_get)(dev, stats);
1105         return 0;
1106 }
1107
1108 void
1109 rte_cryptodev_stats_reset(uint8_t dev_id)
1110 {
1111         struct rte_cryptodev *dev;
1112
1113         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1114                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1115                 return;
1116         }
1117
1118         dev = &rte_crypto_devices[dev_id];
1119
1120         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1121         (*dev->dev_ops->stats_reset)(dev);
1122 }
1123
1124
1125 void
1126 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1127 {
1128         struct rte_cryptodev *dev;
1129
1130         if (dev_id >= cryptodev_globals.nb_devs) {
1131                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1132                 return;
1133         }
1134
1135         dev = &rte_crypto_devices[dev_id];
1136
1137         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1138
1139         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1140         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1141
1142         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
1143         dev_info->driver_name = dev->device->driver->name;
1144 }
1145
1146
1147 int
1148 rte_cryptodev_callback_register(uint8_t dev_id,
1149                         enum rte_cryptodev_event_type event,
1150                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1151 {
1152         struct rte_cryptodev *dev;
1153         struct rte_cryptodev_callback *user_cb;
1154
1155         if (!cb_fn)
1156                 return -EINVAL;
1157
1158         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1159                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1160                 return -EINVAL;
1161         }
1162
1163         dev = &rte_crypto_devices[dev_id];
1164         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1165
1166         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1167                 if (user_cb->cb_fn == cb_fn &&
1168                         user_cb->cb_arg == cb_arg &&
1169                         user_cb->event == event) {
1170                         break;
1171                 }
1172         }
1173
1174         /* create a new callback. */
1175         if (user_cb == NULL) {
1176                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1177                                 sizeof(struct rte_cryptodev_callback), 0);
1178                 if (user_cb != NULL) {
1179                         user_cb->cb_fn = cb_fn;
1180                         user_cb->cb_arg = cb_arg;
1181                         user_cb->event = event;
1182                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1183                 }
1184         }
1185
1186         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1187         return (user_cb == NULL) ? -ENOMEM : 0;
1188 }
1189
1190 int
1191 rte_cryptodev_callback_unregister(uint8_t dev_id,
1192                         enum rte_cryptodev_event_type event,
1193                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1194 {
1195         int ret;
1196         struct rte_cryptodev *dev;
1197         struct rte_cryptodev_callback *cb, *next;
1198
1199         if (!cb_fn)
1200                 return -EINVAL;
1201
1202         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1203                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1204                 return -EINVAL;
1205         }
1206
1207         dev = &rte_crypto_devices[dev_id];
1208         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1209
1210         ret = 0;
1211         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1212
1213                 next = TAILQ_NEXT(cb, next);
1214
1215                 if (cb->cb_fn != cb_fn || cb->event != event ||
1216                                 (cb->cb_arg != (void *)-1 &&
1217                                 cb->cb_arg != cb_arg))
1218                         continue;
1219
1220                 /*
1221                  * if this callback is not executing right now,
1222                  * then remove it.
1223                  */
1224                 if (cb->active == 0) {
1225                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1226                         rte_free(cb);
1227                 } else {
1228                         ret = -EAGAIN;
1229                 }
1230         }
1231
1232         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1233         return ret;
1234 }
1235
1236 void
1237 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1238         enum rte_cryptodev_event_type event)
1239 {
1240         struct rte_cryptodev_callback *cb_lst;
1241         struct rte_cryptodev_callback dev_cb;
1242
1243         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1244         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1245                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1246                         continue;
1247                 dev_cb = *cb_lst;
1248                 cb_lst->active = 1;
1249                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1250                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1251                                                 dev_cb.cb_arg);
1252                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1253                 cb_lst->active = 0;
1254         }
1255         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1256 }
1257
1258
1259 static void
1260 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1261                 void *opaque_arg,
1262                 void *_sess,
1263                 __rte_unused unsigned i)
1264 {
1265         struct rte_cryptodev_sym_session *sess = _sess;
1266         struct rte_cryptodev *dev = opaque_arg;
1267
1268         memset(sess, 0, mp->elt_size);
1269
1270         sess->dev_id = dev->data->dev_id;
1271         sess->dev_type = dev->dev_type;
1272         sess->mp = mp;
1273
1274         if (dev->dev_ops->session_initialize)
1275                 (*dev->dev_ops->session_initialize)(mp, sess);
1276 }
1277
1278 static int
1279 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1280                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1281 {
1282         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1283         unsigned priv_sess_size;
1284
1285         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1286                         dev->data->dev_id);
1287         if (n > sizeof(mp_name)) {
1288                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1289                 return -ENOMEM;
1290         }
1291
1292         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1293         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1294         if (priv_sess_size == 0) {
1295                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1296                                                 dev->data->name);
1297                 return -ENOMEM;
1298         }
1299
1300         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1301                         priv_sess_size;
1302
1303         dev->data->session_pool = rte_mempool_lookup(mp_name);
1304         if (dev->data->session_pool != NULL) {
1305                 if ((dev->data->session_pool->elt_size != elt_size) ||
1306                                 (dev->data->session_pool->cache_size <
1307                                 obj_cache_size) ||
1308                                 (dev->data->session_pool->size < nb_objs)) {
1309
1310                         CDEV_LOG_ERR("%s mempool already exists with different"
1311                                         " initialization parameters", mp_name);
1312                         dev->data->session_pool = NULL;
1313                         return -ENOMEM;
1314                 }
1315         } else {
1316                 dev->data->session_pool = rte_mempool_create(
1317                                 mp_name, /* mempool name */
1318                                 nb_objs, /* number of elements*/
1319                                 elt_size, /* element size*/
1320                                 obj_cache_size, /* Cache size*/
1321                                 0, /* private data size */
1322                                 NULL, /* obj initialization constructor */
1323                                 NULL, /* obj initialization constructor arg */
1324                                 rte_cryptodev_sym_session_init,
1325                                 /**< obj constructor*/
1326                                 dev, /* obj constructor arg */
1327                                 socket_id, /* socket id */
1328                                 0); /* flags */
1329
1330                 if (dev->data->session_pool == NULL) {
1331                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1332                         return -ENOMEM;
1333                 }
1334         }
1335
1336         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1337         return 0;
1338 }
1339
1340 struct rte_cryptodev_sym_session *
1341 rte_cryptodev_sym_session_create(uint8_t dev_id,
1342                 struct rte_crypto_sym_xform *xform)
1343 {
1344         struct rte_cryptodev *dev;
1345         struct rte_cryptodev_sym_session *sess;
1346         void *_sess;
1347
1348         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1349                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1350                 return NULL;
1351         }
1352
1353         dev = &rte_crypto_devices[dev_id];
1354
1355         /* Allocate a session structure from the session pool */
1356         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1357                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1358                 return NULL;
1359         }
1360
1361         sess = _sess;
1362
1363         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1364         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1365                         NULL) {
1366                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1367                                 dev_id);
1368
1369                 /* Return session to mempool */
1370                 rte_mempool_put(sess->mp, _sess);
1371                 return NULL;
1372         }
1373
1374         return sess;
1375 }
1376
1377 int
1378 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
1379                 struct rte_cryptodev_sym_session *sess)
1380 {
1381         struct rte_cryptodev *dev;
1382
1383         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1384                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1385                 return -EINVAL;
1386         }
1387
1388         dev = &rte_crypto_devices[sess->dev_id];
1389
1390         /* The API is optional, not returning error if driver do not suuport */
1391         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
1392         if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
1393                 CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
1394                                 sess->dev_id, qp_id);
1395                 return -EPERM;
1396         }
1397
1398         return 0;
1399 }
1400
1401 int
1402 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
1403                 struct rte_cryptodev_sym_session *sess)
1404 {
1405         struct rte_cryptodev *dev;
1406
1407         if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) {
1408                 CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id);
1409                 return -EINVAL;
1410         }
1411
1412         dev = &rte_crypto_devices[sess->dev_id];
1413
1414         /* The API is optional, not returning error if driver do not suuport */
1415         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
1416         if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
1417                 CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
1418                                 sess->dev_id, qp_id);
1419                 return -EPERM;
1420         }
1421
1422         return 0;
1423 }
1424 struct rte_cryptodev_sym_session *
1425 rte_cryptodev_sym_session_free(uint8_t dev_id,
1426                 struct rte_cryptodev_sym_session *sess)
1427 {
1428         struct rte_cryptodev *dev;
1429
1430         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1431                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1432                 return sess;
1433         }
1434
1435         dev = &rte_crypto_devices[dev_id];
1436
1437         /* Check the session belongs to this device type */
1438         if (sess->dev_type != dev->dev_type)
1439                 return sess;
1440
1441         /* Let device implementation clear session material */
1442         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1443         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1444
1445         /* Return session to mempool */
1446         rte_mempool_put(sess->mp, (void *)sess);
1447
1448         return NULL;
1449 }
1450
1451 /** Initialise rte_crypto_op mempool element */
1452 static void
1453 rte_crypto_op_init(struct rte_mempool *mempool,
1454                 void *opaque_arg,
1455                 void *_op_data,
1456                 __rte_unused unsigned i)
1457 {
1458         struct rte_crypto_op *op = _op_data;
1459         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1460
1461         memset(_op_data, 0, mempool->elt_size);
1462
1463         __rte_crypto_op_reset(op, type);
1464
1465         op->phys_addr = rte_mem_virt2phy(_op_data);
1466         op->mempool = mempool;
1467 }
1468
1469
1470 struct rte_mempool *
1471 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1472                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1473                 int socket_id)
1474 {
1475         struct rte_crypto_op_pool_private *priv;
1476
1477         unsigned elt_size = sizeof(struct rte_crypto_op) +
1478                         sizeof(struct rte_crypto_sym_op) +
1479                         priv_size;
1480
1481         /* lookup mempool in case already allocated */
1482         struct rte_mempool *mp = rte_mempool_lookup(name);
1483
1484         if (mp != NULL) {
1485                 priv = (struct rte_crypto_op_pool_private *)
1486                                 rte_mempool_get_priv(mp);
1487
1488                 if (mp->elt_size != elt_size ||
1489                                 mp->cache_size < cache_size ||
1490                                 mp->size < nb_elts ||
1491                                 priv->priv_size <  priv_size) {
1492                         mp = NULL;
1493                         CDEV_LOG_ERR("Mempool %s already exists but with "
1494                                         "incompatible parameters", name);
1495                         return NULL;
1496                 }
1497                 return mp;
1498         }
1499
1500         mp = rte_mempool_create(
1501                         name,
1502                         nb_elts,
1503                         elt_size,
1504                         cache_size,
1505                         sizeof(struct rte_crypto_op_pool_private),
1506                         NULL,
1507                         NULL,
1508                         rte_crypto_op_init,
1509                         &type,
1510                         socket_id,
1511                         0);
1512
1513         if (mp == NULL) {
1514                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1515                 return NULL;
1516         }
1517
1518         priv = (struct rte_crypto_op_pool_private *)
1519                         rte_mempool_get_priv(mp);
1520
1521         priv->priv_size = priv_size;
1522         priv->type = type;
1523
1524         return mp;
1525 }
1526
1527 int
1528 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1529 {
1530         struct rte_cryptodev *dev = NULL;
1531         uint32_t i = 0;
1532
1533         if (name == NULL)
1534                 return -EINVAL;
1535
1536         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1537                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1538                                 "%s_%u", dev_name_prefix, i);
1539
1540                 if (ret < 0)
1541                         return ret;
1542
1543                 dev = rte_cryptodev_pmd_get_named_dev(name);
1544                 if (!dev)
1545                         return 0;
1546         }
1547
1548         return -1;
1549 }