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