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