lib/librte_cryptodev/rte_cryptodev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015-2016 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 static uint8_t
 117 number_of_sockets(void)
 118 {
 119         int sockets = 0;
 120         int i;
 121         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
 122
 123         for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
 124                 if (sockets < ms[i].socket_id)
 125                         sockets = ms[i].socket_id;
 126         }
 127
 128         /* Number of sockets = maximum socket_id + 1 */
 129         return ++sockets;
 130 }
 131
 132 /** Parse integer from integer argument */
 133 static int
 134 parse_integer_arg(const char *key __rte_unused,
 135                 const char *value, void *extra_args)
 136 {
 137         int *i = (int *) extra_args;
 138
 139         *i = atoi(value);
 140         if (*i < 0) {
 141                 CDEV_LOG_ERR("Argument has to be positive.");
 142                 return -1;
 143         }
 144
 145         return 0;
 146 }
 147
 148 /** Parse name */
 149 static int
 150 parse_name_arg(const char *key __rte_unused,
 151                 const char *value, void *extra_args)
 152 {
 153         struct rte_crypto_vdev_init_params *params = extra_args;
 154
 155         if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
 156                 CDEV_LOG_ERR("Invalid name %s, should be less than "
 157                                 "%u bytes", value,
 158                                 RTE_CRYPTODEV_NAME_MAX_LEN - 1);
 159                 return -1;
 160         }
 161
 162         strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
 163
 164         return 0;
 165 }
 166
 167 int
 168 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
 169                 const char *input_args)
 170 {
 171         struct rte_kvargs *kvlist = NULL;
 172         int ret = 0;
 173
 174         if (params == NULL)
 175                 return -EINVAL;
 176
 177         if (input_args) {
 178                 kvlist = rte_kvargs_parse(input_args,
 179                                 cryptodev_vdev_valid_params);
 180                 if (kvlist == NULL)
 181                         return -1;
 182
 183                 ret = rte_kvargs_process(kvlist,
 184                                         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 185                                         &parse_integer_arg,
 186                                         &params->max_nb_queue_pairs);
 187                 if (ret < 0)
 188                         goto free_kvlist;
 189
 190                 ret = rte_kvargs_process(kvlist,
 191                                         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 192                                         &parse_integer_arg,
 193                                         &params->max_nb_sessions);
 194                 if (ret < 0)
 195                         goto free_kvlist;
 196
 197                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 198                                         &parse_integer_arg,
 199                                         &params->socket_id);
 200                 if (ret < 0)
 201                         goto free_kvlist;
 202
 203                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
 204                                         &parse_name_arg,
 205                                         params);
 206                 if (ret < 0)
 207                         goto free_kvlist;
 208
 209                 if (params->socket_id >= number_of_sockets()) {
 210                         CDEV_LOG_ERR("Invalid socket id specified to create "
 211                                 "the virtual crypto device on");
 212                         goto free_kvlist;
 213                 }
 214         }
 215
 216 free_kvlist:
 217         rte_kvargs_free(kvlist);
 218         return ret;
 219 }
 220
 221 const char *
 222 rte_cryptodev_get_feature_name(uint64_t flag)
 223 {
 224         switch (flag) {
 225         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 226                 return "SYMMETRIC_CRYPTO";
 227         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 228                 return "ASYMMETRIC_CRYPTO";
 229         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 230                 return "SYM_OPERATION_CHAINING";
 231         case RTE_CRYPTODEV_FF_CPU_SSE:
 232                 return "CPU_SSE";
 233         case RTE_CRYPTODEV_FF_CPU_AVX:
 234                 return "CPU_AVX";
 235         case RTE_CRYPTODEV_FF_CPU_AVX2:
 236                 return "CPU_AVX2";
 237         case RTE_CRYPTODEV_FF_CPU_AESNI:
 238                 return "CPU_AESNI";
 239         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 240                 return "HW_ACCELERATED";
 241         case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
 242                 return "MBUF_SCATTER_GATHER";
 243         case RTE_CRYPTODEV_FF_CPU_NEON:
 244                 return "CPU_NEON";
 245         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 246                 return "CPU_ARM_CE";
 247         default:
 248                 return NULL;
 249         }
 250 }
 251
 252 int
 253 rte_cryptodev_create_vdev(const char *name, const char *args)
 254 {
 255         return rte_eal_vdev_init(name, args);
 256 }
 257
 258 struct rte_cryptodev *
 259 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 260 {
 261         return &rte_cryptodev_globals->devs[dev_id];
 262 }
 263
 264 struct rte_cryptodev *
 265 rte_cryptodev_pmd_get_named_dev(const char *name)
 266 {
 267         struct rte_cryptodev *dev;
 268         unsigned int i;
 269
 270         if (name == NULL)
 271                 return NULL;
 272
 273         for (i = 0; i < rte_cryptodev_globals->max_devs; i++) {
 274                 dev = &rte_cryptodev_globals->devs[i];
 275
 276                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 277                                 (strcmp(dev->data->name, name) == 0))
 278                         return dev;
 279         }
 280
 281         return NULL;
 282 }
 283
 284 unsigned int
 285 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 286 {
 287         struct rte_cryptodev *dev = NULL;
 288
 289         if (dev_id >= rte_cryptodev_globals->nb_devs)
 290                 return 0;
 291
 292         dev = rte_cryptodev_pmd_get_dev(dev_id);
 293         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 294                 return 0;
 295         else
 296                 return 1;
 297 }
 298
 299
 300 int
 301 rte_cryptodev_get_dev_id(const char *name)
 302 {
 303         unsigned i;
 304
 305         if (name == NULL)
 306                 return -1;
 307
 308         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 309                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 310                                 == 0) &&
 311                                 (rte_cryptodev_globals->devs[i].attached ==
 312                                                 RTE_CRYPTODEV_ATTACHED))
 313                         return i;
 314
 315         return -1;
 316 }
 317
 318 uint8_t
 319 rte_cryptodev_count(void)
 320 {
 321         return rte_cryptodev_globals->nb_devs;
 322 }
 323
 324 uint8_t
 325 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 326 {
 327         uint8_t i, dev_count = 0;
 328
 329         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 330                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 331                         rte_cryptodev_globals->devs[i].attached ==
 332                                         RTE_CRYPTODEV_ATTACHED)
 333                         dev_count++;
 334
 335         return dev_count;
 336 }
 337
 338 int
 339 rte_cryptodev_socket_id(uint8_t dev_id)
 340 {
 341         struct rte_cryptodev *dev;
 342
 343         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 344                 return -1;
 345
 346         dev = rte_cryptodev_pmd_get_dev(dev_id);
 347
 348         return dev->data->socket_id;
 349 }
 350
 351 static inline int
 352 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 353                 int socket_id)
 354 {
 355         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 356         const struct rte_memzone *mz;
 357         int n;
 358
 359         /* generate memzone name */
 360         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 361         if (n >= (int)sizeof(mz_name))
 362                 return -EINVAL;
 363
 364         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 365                 mz = rte_memzone_reserve(mz_name,
 366                                 sizeof(struct rte_cryptodev_data),
 367                                 socket_id, 0);
 368         } else
 369                 mz = rte_memzone_lookup(mz_name);
 370
 371         if (mz == NULL)
 372                 return -ENOMEM;
 373
 374         *data = mz->addr;
 375         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 376                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 377
 378         return 0;
 379 }
 380
 381 static uint8_t
 382 rte_cryptodev_find_free_device_index(void)
 383 {
 384         uint8_t dev_id;
 385
 386         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 387                 if (rte_crypto_devices[dev_id].attached ==
 388                                 RTE_CRYPTODEV_DETACHED)
 389                         return dev_id;
 390         }
 391         return RTE_CRYPTO_MAX_DEVS;
 392 }
 393
 394 struct rte_cryptodev *
 395 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 396 {
 397         struct rte_cryptodev *cryptodev;
 398         uint8_t dev_id;
 399
 400         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 401                 CDEV_LOG_ERR("Crypto device with name %s already "
 402                                 "allocated!", name);
 403                 return NULL;
 404         }
 405
 406         dev_id = rte_cryptodev_find_free_device_index();
 407         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 408                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 409                 return NULL;
 410         }
 411
 412         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 413
 414         if (cryptodev->data == NULL) {
 415                 struct rte_cryptodev_data *cryptodev_data =
 416                                 cryptodev_globals.data[dev_id];
 417
 418                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 419                                 socket_id);
 420
 421                 if (retval < 0 || cryptodev_data == NULL)
 422                         return NULL;
 423
 424                 cryptodev->data = cryptodev_data;
 425
 426                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 427                                 "%s", name);
 428
 429                 cryptodev->data->dev_id = dev_id;
 430                 cryptodev->data->socket_id = socket_id;
 431                 cryptodev->data->dev_started = 0;
 432
 433                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 434
 435                 cryptodev_globals.nb_devs++;
 436         }
 437
 438         return cryptodev;
 439 }
 440
 441 int
 442 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 443 {
 444         int ret;
 445
 446         if (cryptodev == NULL)
 447                 return -EINVAL;
 448
 449         ret = rte_cryptodev_close(cryptodev->data->dev_id);
 450         if (ret < 0)
 451                 return ret;
 452
 453         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 454         cryptodev_globals.nb_devs--;
 455         return 0;
 456 }
 457
 458 struct rte_cryptodev *
 459 rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 460                 int socket_id)
 461 {
 462         struct rte_cryptodev *cryptodev;
 463
 464         /* allocate device structure */
 465         cryptodev = rte_cryptodev_pmd_allocate(name, socket_id);
 466         if (cryptodev == NULL)
 467                 return NULL;
 468
 469         /* allocate private device structure */
 470         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 471                 cryptodev->data->dev_private =
 472                                 rte_zmalloc_socket("cryptodev device private",
 473                                                 dev_private_size,
 474                                                 RTE_CACHE_LINE_SIZE,
 475                                                 socket_id);
 476
 477                 if (cryptodev->data->dev_private == NULL)
 478                         rte_panic("Cannot allocate memzone for private device"
 479                                         " data");
 480         }
 481
 482         /* initialise user call-back tail queue */
 483         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 484
 485         return cryptodev;
 486 }
 487
 488 int
 489 rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
 490                         struct rte_pci_device *pci_dev)
 491 {
 492         struct rte_cryptodev_driver *cryptodrv;
 493         struct rte_cryptodev *cryptodev;
 494
 495         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 496
 497         int retval;
 498
 499         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 500         if (cryptodrv == NULL)
 501                 return -ENODEV;
 502
 503         rte_eal_pci_device_name(&pci_dev->addr, cryptodev_name,
 504                         sizeof(cryptodev_name));
 505
 506         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
 507         if (cryptodev == NULL)
 508                 return -ENOMEM;
 509
 510         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 511                 cryptodev->data->dev_private =
 512                                 rte_zmalloc_socket(
 513                                                 "cryptodev private structure",
 514                                                 cryptodrv->dev_private_size,
 515                                                 RTE_CACHE_LINE_SIZE,
 516                                                 rte_socket_id());
 517
 518                 if (cryptodev->data->dev_private == NULL)
 519                         rte_panic("Cannot allocate memzone for private "
 520                                         "device data");
 521         }
 522
 523         cryptodev->pci_dev = pci_dev;
 524         cryptodev->driver = cryptodrv;
 525
 526         /* init user callbacks */
 527         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 528
 529         /* Invoke PMD device initialization function */
 530         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 531         if (retval == 0)
 532                 return 0;
 533
 534         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 535                         " failed", pci_drv->driver.name,
 536                         (unsigned) pci_dev->id.vendor_id,
 537                         (unsigned) pci_dev->id.device_id);
 538
 539         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 540                 rte_free(cryptodev->data->dev_private);
 541
 542         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 543         cryptodev_globals.nb_devs--;
 544
 545         return -ENXIO;
 546 }
 547
 548 int
 549 rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 550 {
 551         const struct rte_cryptodev_driver *cryptodrv;
 552         struct rte_cryptodev *cryptodev;
 553         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 554         int ret;
 555
 556         if (pci_dev == NULL)
 557                 return -EINVAL;
 558
 559         rte_eal_pci_device_name(&pci_dev->addr, cryptodev_name,
 560                         sizeof(cryptodev_name));
 561
 562         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 563         if (cryptodev == NULL)
 564                 return -ENODEV;
 565
 566         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 567         if (cryptodrv == NULL)
 568                 return -ENODEV;
 569
 570         /* Invoke PMD device uninit function */
 571         if (*cryptodrv->cryptodev_uninit) {
 572                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 573                 if (ret)
 574                         return ret;
 575         }
 576
 577         /* free crypto device */
 578         rte_cryptodev_pmd_release_device(cryptodev);
 579
 580         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 581                 rte_free(cryptodev->data->dev_private);
 582
 583         cryptodev->pci_dev = NULL;
 584         cryptodev->driver = NULL;
 585         cryptodev->data = NULL;
 586
 587         return 0;
 588 }
 589
 590 uint16_t
 591 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 592 {
 593         struct rte_cryptodev *dev;
 594
 595         dev = &rte_crypto_devices[dev_id];
 596         return dev->data->nb_queue_pairs;
 597 }
 598
 599 static int
 600 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 601                 int socket_id)
 602 {
 603         struct rte_cryptodev_info dev_info;
 604         void **qp;
 605         unsigned i;
 606
 607         if ((dev == NULL) || (nb_qpairs < 1)) {
 608                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 609                                                         dev, nb_qpairs);
 610                 return -EINVAL;
 611         }
 612
 613         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 614                         nb_qpairs, dev->data->dev_id);
 615
 616         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 617
 618         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 619         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 620
 621         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 622                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 623                                 nb_qpairs, dev->data->dev_id);
 624             return -EINVAL;
 625         }
 626
 627         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 628                 dev->data->queue_pairs = rte_zmalloc_socket(
 629                                 "cryptodev->queue_pairs",
 630                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 631                                 RTE_CACHE_LINE_SIZE, socket_id);
 632
 633                 if (dev->data->queue_pairs == NULL) {
 634                         dev->data->nb_queue_pairs = 0;
 635                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 636                                                         "nb_queues %u",
 637                                                         nb_qpairs);
 638                         return -(ENOMEM);
 639                 }
 640         } else { /* re-configure */
 641                 int ret;
 642                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 643
 644                 qp = dev->data->queue_pairs;
 645
 646                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 647                                 -ENOTSUP);
 648
 649                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 650                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 651                         if (ret < 0)
 652                                 return ret;
 653                 }
 654
 655                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 656                                 RTE_CACHE_LINE_SIZE);
 657                 if (qp == NULL) {
 658                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 659                                                 " nb_queues %u", nb_qpairs);
 660                         return -(ENOMEM);
 661                 }
 662
 663                 if (nb_qpairs > old_nb_queues) {
 664                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 665
 666                         memset(qp + old_nb_queues, 0,
 667                                 sizeof(qp[0]) * new_qs);
 668                 }
 669
 670                 dev->data->queue_pairs = qp;
 671
 672         }
 673         dev->data->nb_queue_pairs = nb_qpairs;
 674         return 0;
 675 }
 676
 677 int
 678 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 679 {
 680         struct rte_cryptodev *dev;
 681
 682         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 683                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 684                 return -EINVAL;
 685         }
 686
 687         dev = &rte_crypto_devices[dev_id];
 688         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 689                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 690                 return -EINVAL;
 691         }
 692
 693         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 694
 695         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 696
 697 }
 698
 699 int
 700 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 701 {
 702         struct rte_cryptodev *dev;
 703
 704         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 705                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 706                 return -EINVAL;
 707         }
 708
 709         dev = &rte_crypto_devices[dev_id];
 710         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 711                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 712                 return -EINVAL;
 713         }
 714
 715         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 716
 717         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 718
 719 }
 720
 721 static int
 722 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 723                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 724
 725 int
 726 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 727 {
 728         struct rte_cryptodev *dev;
 729         int diag;
 730
 731         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 732                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 733                 return -EINVAL;
 734         }
 735
 736         dev = &rte_crypto_devices[dev_id];
 737
 738         if (dev->data->dev_started) {
 739                 CDEV_LOG_ERR(
 740                     "device %d must be stopped to allow configuration", dev_id);
 741                 return -EBUSY;
 742         }
 743
 744         /* Setup new number of queue pairs and reconfigure device. */
 745         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 746                         config->socket_id);
 747         if (diag != 0) {
 748                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 749                                 dev_id, diag);
 750                 return diag;
 751         }
 752
 753         /* Setup Session mempool for device */
 754         return rte_cryptodev_sym_session_pool_create(dev,
 755                         config->session_mp.nb_objs,
 756                         config->session_mp.cache_size,
 757                         config->socket_id);
 758 }
 759
 760
 761 int
 762 rte_cryptodev_start(uint8_t dev_id)
 763 {
 764         struct rte_cryptodev *dev;
 765         int diag;
 766
 767         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 768
 769         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 770                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 771                 return -EINVAL;
 772         }
 773
 774         dev = &rte_crypto_devices[dev_id];
 775
 776         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 777
 778         if (dev->data->dev_started != 0) {
 779                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 780                         dev_id);
 781                 return 0;
 782         }
 783
 784         diag = (*dev->dev_ops->dev_start)(dev);
 785         if (diag == 0)
 786                 dev->data->dev_started = 1;
 787         else
 788                 return diag;
 789
 790         return 0;
 791 }
 792
 793 void
 794 rte_cryptodev_stop(uint8_t dev_id)
 795 {
 796         struct rte_cryptodev *dev;
 797
 798         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 799                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 800                 return;
 801         }
 802
 803         dev = &rte_crypto_devices[dev_id];
 804
 805         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 806
 807         if (dev->data->dev_started == 0) {
 808                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 809                         dev_id);
 810                 return;
 811         }
 812
 813         dev->data->dev_started = 0;
 814         (*dev->dev_ops->dev_stop)(dev);
 815 }
 816
 817 int
 818 rte_cryptodev_close(uint8_t dev_id)
 819 {
 820         struct rte_cryptodev *dev;
 821         int retval;
 822
 823         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 824                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 825                 return -1;
 826         }
 827
 828         dev = &rte_crypto_devices[dev_id];
 829
 830         /* Device must be stopped before it can be closed */
 831         if (dev->data->dev_started == 1) {
 832                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 833                                 dev_id);
 834                 return -EBUSY;
 835         }
 836
 837         /* We can't close the device if there are outstanding sessions in use */
 838         if (dev->data->session_pool != NULL) {
 839                 if (!rte_mempool_full(dev->data->session_pool)) {
 840                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 841                                         "has sessions still in use, free "
 842                                         "all sessions before calling close",
 843                                         (unsigned)dev_id);
 844                         return -EBUSY;
 845                 }
 846         }
 847
 848         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 849         retval = (*dev->dev_ops->dev_close)(dev);
 850
 851         if (retval < 0)
 852                 return retval;
 853
 854         return 0;
 855 }
 856
 857 int
 858 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 859                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 860 {
 861         struct rte_cryptodev *dev;
 862
 863         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 864                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 865                 return -EINVAL;
 866         }
 867
 868         dev = &rte_crypto_devices[dev_id];
 869         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 870                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 871                 return -EINVAL;
 872         }
 873
 874         if (dev->data->dev_started) {
 875                 CDEV_LOG_ERR(
 876                     "device %d must be stopped to allow configuration", dev_id);
 877                 return -EBUSY;
 878         }
 879
 880         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 881
 882         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 883                         socket_id);
 884 }
 885
 886
 887 int
 888 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 889 {
 890         struct rte_cryptodev *dev;
 891
 892         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 893                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 894                 return -ENODEV;
 895         }
 896
 897         if (stats == NULL) {
 898                 CDEV_LOG_ERR("Invalid stats ptr");
 899                 return -EINVAL;
 900         }
 901
 902         dev = &rte_crypto_devices[dev_id];
 903         memset(stats, 0, sizeof(*stats));
 904
 905         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 906         (*dev->dev_ops->stats_get)(dev, stats);
 907         return 0;
 908 }
 909
 910 void
 911 rte_cryptodev_stats_reset(uint8_t dev_id)
 912 {
 913         struct rte_cryptodev *dev;
 914
 915         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 916                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 917                 return;
 918         }
 919
 920         dev = &rte_crypto_devices[dev_id];
 921
 922         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 923         (*dev->dev_ops->stats_reset)(dev);
 924 }
 925
 926
 927 void
 928 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 929 {
 930         struct rte_cryptodev *dev;
 931
 932         if (dev_id >= cryptodev_globals.nb_devs) {
 933                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 934                 return;
 935         }
 936
 937         dev = &rte_crypto_devices[dev_id];
 938
 939         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 940
 941         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 942         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 943
 944         dev_info->pci_dev = dev->pci_dev;
 945         if (dev->driver)
 946                 dev_info->driver_name = dev->driver->pci_drv.driver.name;
 947 }
 948
 949
 950 int
 951 rte_cryptodev_callback_register(uint8_t dev_id,
 952                         enum rte_cryptodev_event_type event,
 953                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 954 {
 955         struct rte_cryptodev *dev;
 956         struct rte_cryptodev_callback *user_cb;
 957
 958         if (!cb_fn)
 959                 return -EINVAL;
 960
 961         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 962                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 963                 return -EINVAL;
 964         }
 965
 966         dev = &rte_crypto_devices[dev_id];
 967         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 968
 969         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 970                 if (user_cb->cb_fn == cb_fn &&
 971                         user_cb->cb_arg == cb_arg &&
 972                         user_cb->event == event) {
 973                         break;
 974                 }
 975         }
 976
 977         /* create a new callback. */
 978         if (user_cb == NULL) {
 979                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 980                                 sizeof(struct rte_cryptodev_callback), 0);
 981                 if (user_cb != NULL) {
 982                         user_cb->cb_fn = cb_fn;
 983                         user_cb->cb_arg = cb_arg;
 984                         user_cb->event = event;
 985                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
 986                 }
 987         }
 988
 989         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 990         return (user_cb == NULL) ? -ENOMEM : 0;
 991 }
 992
 993 int
 994 rte_cryptodev_callback_unregister(uint8_t dev_id,
 995                         enum rte_cryptodev_event_type event,
 996                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 997 {
 998         int ret;
 999         struct rte_cryptodev *dev;
1000         struct rte_cryptodev_callback *cb, *next;
1001
1002         if (!cb_fn)
1003                 return -EINVAL;
1004
1005         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1006                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1007                 return -EINVAL;
1008         }
1009
1010         dev = &rte_crypto_devices[dev_id];
1011         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1012
1013         ret = 0;
1014         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1015
1016                 next = TAILQ_NEXT(cb, next);
1017
1018                 if (cb->cb_fn != cb_fn || cb->event != event ||
1019                                 (cb->cb_arg != (void *)-1 &&
1020                                 cb->cb_arg != cb_arg))
1021                         continue;
1022
1023                 /*
1024                  * if this callback is not executing right now,
1025                  * then remove it.
1026                  */
1027                 if (cb->active == 0) {
1028                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1029                         rte_free(cb);
1030                 } else {
1031                         ret = -EAGAIN;
1032                 }
1033         }
1034
1035         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1036         return ret;
1037 }
1038
1039 void
1040 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1041         enum rte_cryptodev_event_type event)
1042 {
1043         struct rte_cryptodev_callback *cb_lst;
1044         struct rte_cryptodev_callback dev_cb;
1045
1046         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1047         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1048                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1049                         continue;
1050                 dev_cb = *cb_lst;
1051                 cb_lst->active = 1;
1052                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1053                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1054                                                 dev_cb.cb_arg);
1055                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1056                 cb_lst->active = 0;
1057         }
1058         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1059 }
1060
1061
1062 static void
1063 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1064                 void *opaque_arg,
1065                 void *_sess,
1066                 __rte_unused unsigned i)
1067 {
1068         struct rte_cryptodev_sym_session *sess = _sess;
1069         struct rte_cryptodev *dev = opaque_arg;
1070
1071         memset(sess, 0, mp->elt_size);
1072
1073         sess->dev_id = dev->data->dev_id;
1074         sess->dev_type = dev->dev_type;
1075         sess->mp = mp;
1076
1077         if (dev->dev_ops->session_initialize)
1078                 (*dev->dev_ops->session_initialize)(mp, sess);
1079 }
1080
1081 static int
1082 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1083                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1084 {
1085         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1086         unsigned priv_sess_size;
1087
1088         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1089                         dev->data->dev_id);
1090         if (n > sizeof(mp_name)) {
1091                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1092                 return -ENOMEM;
1093         }
1094
1095         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1096         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1097         if (priv_sess_size == 0) {
1098                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1099                                                 dev->data->name);
1100                 return -ENOMEM;
1101         }
1102
1103         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1104                         priv_sess_size;
1105
1106         dev->data->session_pool = rte_mempool_lookup(mp_name);
1107         if (dev->data->session_pool != NULL) {
1108                 if ((dev->data->session_pool->elt_size != elt_size) ||
1109                                 (dev->data->session_pool->cache_size <
1110                                 obj_cache_size) ||
1111                                 (dev->data->session_pool->size < nb_objs)) {
1112
1113                         CDEV_LOG_ERR("%s mempool already exists with different"
1114                                         " initialization parameters", mp_name);
1115                         dev->data->session_pool = NULL;
1116                         return -ENOMEM;
1117                 }
1118         } else {
1119                 dev->data->session_pool = rte_mempool_create(
1120                                 mp_name, /* mempool name */
1121                                 nb_objs, /* number of elements*/
1122                                 elt_size, /* element size*/
1123                                 obj_cache_size, /* Cache size*/
1124                                 0, /* private data size */
1125                                 NULL, /* obj initialization constructor */
1126                                 NULL, /* obj initialization constructor arg */
1127                                 rte_cryptodev_sym_session_init,
1128                                 /**< obj constructor*/
1129                                 dev, /* obj constructor arg */
1130                                 socket_id, /* socket id */
1131                                 0); /* flags */
1132
1133                 if (dev->data->session_pool == NULL) {
1134                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1135                         return -ENOMEM;
1136                 }
1137         }
1138
1139         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1140         return 0;
1141 }
1142
1143 struct rte_cryptodev_sym_session *
1144 rte_cryptodev_sym_session_create(uint8_t dev_id,
1145                 struct rte_crypto_sym_xform *xform)
1146 {
1147         struct rte_cryptodev *dev;
1148         struct rte_cryptodev_sym_session *sess;
1149         void *_sess;
1150
1151         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1152                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1153                 return NULL;
1154         }
1155
1156         dev = &rte_crypto_devices[dev_id];
1157
1158         /* Allocate a session structure from the session pool */
1159         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1160                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1161                 return NULL;
1162         }
1163
1164         sess = (struct rte_cryptodev_sym_session *)_sess;
1165
1166         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1167         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1168                         NULL) {
1169                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1170                                 dev_id);
1171
1172                 /* Return session to mempool */
1173                 rte_mempool_put(sess->mp, _sess);
1174                 return NULL;
1175         }
1176
1177         return sess;
1178 }
1179
1180 struct rte_cryptodev_sym_session *
1181 rte_cryptodev_sym_session_free(uint8_t dev_id,
1182                 struct rte_cryptodev_sym_session *sess)
1183 {
1184         struct rte_cryptodev *dev;
1185
1186         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1187                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1188                 return sess;
1189         }
1190
1191         dev = &rte_crypto_devices[dev_id];
1192
1193         /* Check the session belongs to this device type */
1194         if (sess->dev_type != dev->dev_type)
1195                 return sess;
1196
1197         /* Let device implementation clear session material */
1198         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1199         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1200
1201         /* Return session to mempool */
1202         rte_mempool_put(sess->mp, (void *)sess);
1203
1204         return NULL;
1205 }
1206
1207 /** Initialise rte_crypto_op mempool element */
1208 static void
1209 rte_crypto_op_init(struct rte_mempool *mempool,
1210                 void *opaque_arg,
1211                 void *_op_data,
1212                 __rte_unused unsigned i)
1213 {
1214         struct rte_crypto_op *op = _op_data;
1215         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1216
1217         memset(_op_data, 0, mempool->elt_size);
1218
1219         __rte_crypto_op_reset(op, type);
1220
1221         op->phys_addr = rte_mem_virt2phy(_op_data);
1222         op->mempool = mempool;
1223 }
1224
1225
1226 struct rte_mempool *
1227 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1228                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1229                 int socket_id)
1230 {
1231         struct rte_crypto_op_pool_private *priv;
1232
1233         unsigned elt_size = sizeof(struct rte_crypto_op) +
1234                         sizeof(struct rte_crypto_sym_op) +
1235                         priv_size;
1236
1237         /* lookup mempool in case already allocated */
1238         struct rte_mempool *mp = rte_mempool_lookup(name);
1239
1240         if (mp != NULL) {
1241                 priv = (struct rte_crypto_op_pool_private *)
1242                                 rte_mempool_get_priv(mp);
1243
1244                 if (mp->elt_size != elt_size ||
1245                                 mp->cache_size < cache_size ||
1246                                 mp->size < nb_elts ||
1247                                 priv->priv_size <  priv_size) {
1248                         mp = NULL;
1249                         CDEV_LOG_ERR("Mempool %s already exists but with "
1250                                         "incompatible parameters", name);
1251                         return NULL;
1252                 }
1253                 return mp;
1254         }
1255
1256         mp = rte_mempool_create(
1257                         name,
1258                         nb_elts,
1259                         elt_size,
1260                         cache_size,
1261                         sizeof(struct rte_crypto_op_pool_private),
1262                         NULL,
1263                         NULL,
1264                         rte_crypto_op_init,
1265                         &type,
1266                         socket_id,
1267                         0);
1268
1269         if (mp == NULL) {
1270                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1271                 return NULL;
1272         }
1273
1274         priv = (struct rte_crypto_op_pool_private *)
1275                         rte_mempool_get_priv(mp);
1276
1277         priv->priv_size = priv_size;
1278         priv->type = type;
1279
1280         return mp;
1281 }
1282
1283 int
1284 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1285 {
1286         struct rte_cryptodev *dev = NULL;
1287         uint32_t i = 0;
1288
1289         if (name == NULL)
1290                 return -EINVAL;
1291
1292         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1293                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1294                                 "%s_%u", dev_name_prefix, i);
1295
1296                 if (ret < 0)
1297                         return ret;
1298
1299                 dev = rte_cryptodev_pmd_get_named_dev(name);
1300                 if (!dev)
1301                         return 0;
1302         }
1303
1304         return -1;
1305 }