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_MAX_NB_QP_ARG                ("max_nb_queue_pairs")
 105 #define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG              ("max_nb_sessions")
 106 #define RTE_CRYPTODEV_VDEV_SOCKET_ID                    ("socket_id")
 107
 108 static const char *cryptodev_vdev_valid_params[] = {
 109         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 110         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 111         RTE_CRYPTODEV_VDEV_SOCKET_ID
 112 };
 113
 114 static uint8_t
 115 number_of_sockets(void)
 116 {
 117         int sockets = 0;
 118         int i;
 119         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
 120
 121         for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
 122                 if (sockets < ms[i].socket_id)
 123                         sockets = ms[i].socket_id;
 124         }
 125
 126         /* Number of sockets = maximum socket_id + 1 */
 127         return ++sockets;
 128 }
 129
 130 /** Parse integer from integer argument */
 131 static int
 132 parse_integer_arg(const char *key __rte_unused,
 133                 const char *value, void *extra_args)
 134 {
 135         int *i = (int *) extra_args;
 136
 137         *i = atoi(value);
 138         if (*i < 0) {
 139                 CDEV_LOG_ERR("Argument has to be positive.");
 140                 return -1;
 141         }
 142
 143         return 0;
 144 }
 145
 146 int
 147 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
 148                 const char *input_args)
 149 {
 150         struct rte_kvargs *kvlist = NULL;
 151         int ret = 0;
 152
 153         if (params == NULL)
 154                 return -EINVAL;
 155
 156         if (input_args) {
 157                 kvlist = rte_kvargs_parse(input_args,
 158                                 cryptodev_vdev_valid_params);
 159                 if (kvlist == NULL)
 160                         return -1;
 161
 162                 ret = rte_kvargs_process(kvlist,
 163                                         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 164                                         &parse_integer_arg,
 165                                         &params->max_nb_queue_pairs);
 166                 if (ret < 0)
 167                         goto free_kvlist;
 168
 169                 ret = rte_kvargs_process(kvlist,
 170                                         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 171                                         &parse_integer_arg,
 172                                         &params->max_nb_sessions);
 173                 if (ret < 0)
 174                         goto free_kvlist;
 175
 176                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 177                                         &parse_integer_arg,
 178                                         &params->socket_id);
 179                 if (ret < 0)
 180                         goto free_kvlist;
 181
 182                 if (params->socket_id >= number_of_sockets()) {
 183                         CDEV_LOG_ERR("Invalid socket id specified to create "
 184                                 "the virtual crypto device on");
 185                         goto free_kvlist;
 186                 }
 187         }
 188
 189 free_kvlist:
 190         rte_kvargs_free(kvlist);
 191         return ret;
 192 }
 193
 194 const char *
 195 rte_cryptodev_get_feature_name(uint64_t flag)
 196 {
 197         switch (flag) {
 198         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 199                 return "SYMMETRIC_CRYPTO";
 200         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 201                 return "ASYMMETRIC_CRYPTO";
 202         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 203                 return "SYM_OPERATION_CHAINING";
 204         case RTE_CRYPTODEV_FF_CPU_SSE:
 205                 return "CPU_SSE";
 206         case RTE_CRYPTODEV_FF_CPU_AVX:
 207                 return "CPU_AVX";
 208         case RTE_CRYPTODEV_FF_CPU_AVX2:
 209                 return "CPU_AVX2";
 210         case RTE_CRYPTODEV_FF_CPU_AESNI:
 211                 return "CPU_AESNI";
 212         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 213                 return "HW_ACCELERATED";
 214
 215         default:
 216                 return NULL;
 217         }
 218 }
 219
 220
 221 int
 222 rte_cryptodev_create_vdev(const char *name, const char *args)
 223 {
 224         return rte_eal_vdev_init(name, args);
 225 }
 226
 227 int
 228 rte_cryptodev_get_dev_id(const char *name)
 229 {
 230         unsigned i;
 231
 232         if (name == NULL)
 233                 return -1;
 234
 235         for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
 236                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 237                                 == 0) &&
 238                                 (rte_cryptodev_globals->devs[i].attached ==
 239                                                 RTE_CRYPTODEV_ATTACHED))
 240                         return i;
 241
 242         return -1;
 243 }
 244
 245 uint8_t
 246 rte_cryptodev_count(void)
 247 {
 248         return rte_cryptodev_globals->nb_devs;
 249 }
 250
 251 uint8_t
 252 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 253 {
 254         uint8_t i, dev_count = 0;
 255
 256         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 257                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 258                         rte_cryptodev_globals->devs[i].attached ==
 259                                         RTE_CRYPTODEV_ATTACHED)
 260                         dev_count++;
 261
 262         return dev_count;
 263 }
 264
 265 int
 266 rte_cryptodev_socket_id(uint8_t dev_id)
 267 {
 268         struct rte_cryptodev *dev;
 269
 270         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 271                 return -1;
 272
 273         dev = rte_cryptodev_pmd_get_dev(dev_id);
 274
 275         return dev->data->socket_id;
 276 }
 277
 278 static inline int
 279 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 280                 int socket_id)
 281 {
 282         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 283         const struct rte_memzone *mz;
 284         int n;
 285
 286         /* generate memzone name */
 287         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 288         if (n >= (int)sizeof(mz_name))
 289                 return -EINVAL;
 290
 291         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 292                 mz = rte_memzone_reserve(mz_name,
 293                                 sizeof(struct rte_cryptodev_data),
 294                                 socket_id, 0);
 295         } else
 296                 mz = rte_memzone_lookup(mz_name);
 297
 298         if (mz == NULL)
 299                 return -ENOMEM;
 300
 301         *data = mz->addr;
 302         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 303                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 304
 305         return 0;
 306 }
 307
 308 static uint8_t
 309 rte_cryptodev_find_free_device_index(void)
 310 {
 311         uint8_t dev_id;
 312
 313         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 314                 if (rte_crypto_devices[dev_id].attached ==
 315                                 RTE_CRYPTODEV_DETACHED)
 316                         return dev_id;
 317         }
 318         return RTE_CRYPTO_MAX_DEVS;
 319 }
 320
 321 struct rte_cryptodev *
 322 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 323 {
 324         struct rte_cryptodev *cryptodev;
 325         uint8_t dev_id;
 326
 327         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 328                 CDEV_LOG_ERR("Crypto device with name %s already "
 329                                 "allocated!", name);
 330                 return NULL;
 331         }
 332
 333         dev_id = rte_cryptodev_find_free_device_index();
 334         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 335                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 336                 return NULL;
 337         }
 338
 339         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 340
 341         if (cryptodev->data == NULL) {
 342                 struct rte_cryptodev_data *cryptodev_data =
 343                                 cryptodev_globals.data[dev_id];
 344
 345                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 346                                 socket_id);
 347
 348                 if (retval < 0 || cryptodev_data == NULL)
 349                         return NULL;
 350
 351                 cryptodev->data = cryptodev_data;
 352
 353                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 354                                 "%s", name);
 355
 356                 cryptodev->data->dev_id = dev_id;
 357                 cryptodev->data->socket_id = socket_id;
 358                 cryptodev->data->dev_started = 0;
 359
 360                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 361
 362                 cryptodev_globals.nb_devs++;
 363         }
 364
 365         return cryptodev;
 366 }
 367
 368 int
 369 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 370 {
 371         int ret;
 372
 373         if (cryptodev == NULL)
 374                 return -EINVAL;
 375
 376         ret = rte_cryptodev_close(cryptodev->data->dev_id);
 377         if (ret < 0)
 378                 return ret;
 379
 380         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 381         cryptodev_globals.nb_devs--;
 382         return 0;
 383 }
 384
 385 struct rte_cryptodev *
 386 rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 387                 int socket_id)
 388 {
 389         struct rte_cryptodev *cryptodev;
 390
 391         /* allocate device structure */
 392         cryptodev = rte_cryptodev_pmd_allocate(name, socket_id);
 393         if (cryptodev == NULL)
 394                 return NULL;
 395
 396         /* allocate private device structure */
 397         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 398                 cryptodev->data->dev_private =
 399                                 rte_zmalloc_socket("cryptodev device private",
 400                                                 dev_private_size,
 401                                                 RTE_CACHE_LINE_SIZE,
 402                                                 socket_id);
 403
 404                 if (cryptodev->data->dev_private == NULL)
 405                         rte_panic("Cannot allocate memzone for private device"
 406                                         " data");
 407         }
 408
 409         /* initialise user call-back tail queue */
 410         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 411
 412         return cryptodev;
 413 }
 414
 415 int
 416 rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
 417                         struct rte_pci_device *pci_dev)
 418 {
 419         struct rte_cryptodev_driver *cryptodrv;
 420         struct rte_cryptodev *cryptodev;
 421
 422         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 423
 424         int retval;
 425
 426         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 427         if (cryptodrv == NULL)
 428                 return -ENODEV;
 429
 430         rte_eal_pci_device_name(&pci_dev->addr, cryptodev_name,
 431                         sizeof(cryptodev_name));
 432
 433         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
 434         if (cryptodev == NULL)
 435                 return -ENOMEM;
 436
 437         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 438                 cryptodev->data->dev_private =
 439                                 rte_zmalloc_socket(
 440                                                 "cryptodev private structure",
 441                                                 cryptodrv->dev_private_size,
 442                                                 RTE_CACHE_LINE_SIZE,
 443                                                 rte_socket_id());
 444
 445                 if (cryptodev->data->dev_private == NULL)
 446                         rte_panic("Cannot allocate memzone for private "
 447                                         "device data");
 448         }
 449
 450         cryptodev->pci_dev = pci_dev;
 451         cryptodev->driver = cryptodrv;
 452
 453         /* init user callbacks */
 454         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 455
 456         /* Invoke PMD device initialization function */
 457         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 458         if (retval == 0)
 459                 return 0;
 460
 461         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 462                         " failed", pci_drv->driver.name,
 463                         (unsigned) pci_dev->id.vendor_id,
 464                         (unsigned) pci_dev->id.device_id);
 465
 466         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 467                 rte_free(cryptodev->data->dev_private);
 468
 469         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 470         cryptodev_globals.nb_devs--;
 471
 472         return -ENXIO;
 473 }
 474
 475 int
 476 rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 477 {
 478         const struct rte_cryptodev_driver *cryptodrv;
 479         struct rte_cryptodev *cryptodev;
 480         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 481         int ret;
 482
 483         if (pci_dev == NULL)
 484                 return -EINVAL;
 485
 486         rte_eal_pci_device_name(&pci_dev->addr, cryptodev_name,
 487                         sizeof(cryptodev_name));
 488
 489         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 490         if (cryptodev == NULL)
 491                 return -ENODEV;
 492
 493         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 494         if (cryptodrv == NULL)
 495                 return -ENODEV;
 496
 497         /* Invoke PMD device uninit function */
 498         if (*cryptodrv->cryptodev_uninit) {
 499                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 500                 if (ret)
 501                         return ret;
 502         }
 503
 504         /* free crypto device */
 505         rte_cryptodev_pmd_release_device(cryptodev);
 506
 507         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 508                 rte_free(cryptodev->data->dev_private);
 509
 510         cryptodev->pci_dev = NULL;
 511         cryptodev->driver = NULL;
 512         cryptodev->data = NULL;
 513
 514         return 0;
 515 }
 516
 517 uint16_t
 518 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 519 {
 520         struct rte_cryptodev *dev;
 521
 522         dev = &rte_crypto_devices[dev_id];
 523         return dev->data->nb_queue_pairs;
 524 }
 525
 526 static int
 527 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 528                 int socket_id)
 529 {
 530         struct rte_cryptodev_info dev_info;
 531         void **qp;
 532         unsigned i;
 533
 534         if ((dev == NULL) || (nb_qpairs < 1)) {
 535                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 536                                                         dev, nb_qpairs);
 537                 return -EINVAL;
 538         }
 539
 540         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 541                         nb_qpairs, dev->data->dev_id);
 542
 543         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 544
 545         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 546         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 547
 548         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 549                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 550                                 nb_qpairs, dev->data->dev_id);
 551             return -EINVAL;
 552         }
 553
 554         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 555                 dev->data->queue_pairs = rte_zmalloc_socket(
 556                                 "cryptodev->queue_pairs",
 557                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 558                                 RTE_CACHE_LINE_SIZE, socket_id);
 559
 560                 if (dev->data->queue_pairs == NULL) {
 561                         dev->data->nb_queue_pairs = 0;
 562                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 563                                                         "nb_queues %u",
 564                                                         nb_qpairs);
 565                         return -(ENOMEM);
 566                 }
 567         } else { /* re-configure */
 568                 int ret;
 569                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 570
 571                 qp = dev->data->queue_pairs;
 572
 573                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 574                                 -ENOTSUP);
 575
 576                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 577                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 578                         if (ret < 0)
 579                                 return ret;
 580                 }
 581
 582                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 583                                 RTE_CACHE_LINE_SIZE);
 584                 if (qp == NULL) {
 585                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 586                                                 " nb_queues %u", nb_qpairs);
 587                         return -(ENOMEM);
 588                 }
 589
 590                 if (nb_qpairs > old_nb_queues) {
 591                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 592
 593                         memset(qp + old_nb_queues, 0,
 594                                 sizeof(qp[0]) * new_qs);
 595                 }
 596
 597                 dev->data->queue_pairs = qp;
 598
 599         }
 600         dev->data->nb_queue_pairs = nb_qpairs;
 601         return 0;
 602 }
 603
 604 int
 605 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 606 {
 607         struct rte_cryptodev *dev;
 608
 609         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 610                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 611                 return -EINVAL;
 612         }
 613
 614         dev = &rte_crypto_devices[dev_id];
 615         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 616                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 617                 return -EINVAL;
 618         }
 619
 620         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 621
 622         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 623
 624 }
 625
 626 int
 627 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 628 {
 629         struct rte_cryptodev *dev;
 630
 631         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 632                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 633                 return -EINVAL;
 634         }
 635
 636         dev = &rte_crypto_devices[dev_id];
 637         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 638                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 639                 return -EINVAL;
 640         }
 641
 642         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 643
 644         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 645
 646 }
 647
 648 static int
 649 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 650                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 651
 652 int
 653 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 654 {
 655         struct rte_cryptodev *dev;
 656         int diag;
 657
 658         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 659                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 660                 return -EINVAL;
 661         }
 662
 663         dev = &rte_crypto_devices[dev_id];
 664
 665         if (dev->data->dev_started) {
 666                 CDEV_LOG_ERR(
 667                     "device %d must be stopped to allow configuration", dev_id);
 668                 return -EBUSY;
 669         }
 670
 671         /* Setup new number of queue pairs and reconfigure device. */
 672         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 673                         config->socket_id);
 674         if (diag != 0) {
 675                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 676                                 dev_id, diag);
 677                 return diag;
 678         }
 679
 680         /* Setup Session mempool for device */
 681         return rte_cryptodev_sym_session_pool_create(dev,
 682                         config->session_mp.nb_objs,
 683                         config->session_mp.cache_size,
 684                         config->socket_id);
 685 }
 686
 687
 688 int
 689 rte_cryptodev_start(uint8_t dev_id)
 690 {
 691         struct rte_cryptodev *dev;
 692         int diag;
 693
 694         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 695
 696         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 697                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 698                 return -EINVAL;
 699         }
 700
 701         dev = &rte_crypto_devices[dev_id];
 702
 703         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 704
 705         if (dev->data->dev_started != 0) {
 706                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 707                         dev_id);
 708                 return 0;
 709         }
 710
 711         diag = (*dev->dev_ops->dev_start)(dev);
 712         if (diag == 0)
 713                 dev->data->dev_started = 1;
 714         else
 715                 return diag;
 716
 717         return 0;
 718 }
 719
 720 void
 721 rte_cryptodev_stop(uint8_t dev_id)
 722 {
 723         struct rte_cryptodev *dev;
 724
 725         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 726                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 727                 return;
 728         }
 729
 730         dev = &rte_crypto_devices[dev_id];
 731
 732         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 733
 734         if (dev->data->dev_started == 0) {
 735                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 736                         dev_id);
 737                 return;
 738         }
 739
 740         dev->data->dev_started = 0;
 741         (*dev->dev_ops->dev_stop)(dev);
 742 }
 743
 744 int
 745 rte_cryptodev_close(uint8_t dev_id)
 746 {
 747         struct rte_cryptodev *dev;
 748         int retval;
 749
 750         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 751                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 752                 return -1;
 753         }
 754
 755         dev = &rte_crypto_devices[dev_id];
 756
 757         /* Device must be stopped before it can be closed */
 758         if (dev->data->dev_started == 1) {
 759                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 760                                 dev_id);
 761                 return -EBUSY;
 762         }
 763
 764         /* We can't close the device if there are outstanding sessions in use */
 765         if (dev->data->session_pool != NULL) {
 766                 if (!rte_mempool_full(dev->data->session_pool)) {
 767                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 768                                         "has sessions still in use, free "
 769                                         "all sessions before calling close",
 770                                         (unsigned)dev_id);
 771                         return -EBUSY;
 772                 }
 773         }
 774
 775         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 776         retval = (*dev->dev_ops->dev_close)(dev);
 777
 778         if (retval < 0)
 779                 return retval;
 780
 781         return 0;
 782 }
 783
 784 int
 785 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 786                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 787 {
 788         struct rte_cryptodev *dev;
 789
 790         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 791                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 792                 return -EINVAL;
 793         }
 794
 795         dev = &rte_crypto_devices[dev_id];
 796         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 797                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 798                 return -EINVAL;
 799         }
 800
 801         if (dev->data->dev_started) {
 802                 CDEV_LOG_ERR(
 803                     "device %d must be stopped to allow configuration", dev_id);
 804                 return -EBUSY;
 805         }
 806
 807         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 808
 809         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 810                         socket_id);
 811 }
 812
 813
 814 int
 815 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 816 {
 817         struct rte_cryptodev *dev;
 818
 819         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 820                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 821                 return -ENODEV;
 822         }
 823
 824         if (stats == NULL) {
 825                 CDEV_LOG_ERR("Invalid stats ptr");
 826                 return -EINVAL;
 827         }
 828
 829         dev = &rte_crypto_devices[dev_id];
 830         memset(stats, 0, sizeof(*stats));
 831
 832         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 833         (*dev->dev_ops->stats_get)(dev, stats);
 834         return 0;
 835 }
 836
 837 void
 838 rte_cryptodev_stats_reset(uint8_t dev_id)
 839 {
 840         struct rte_cryptodev *dev;
 841
 842         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 843                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 844                 return;
 845         }
 846
 847         dev = &rte_crypto_devices[dev_id];
 848
 849         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 850         (*dev->dev_ops->stats_reset)(dev);
 851 }
 852
 853
 854 void
 855 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 856 {
 857         struct rte_cryptodev *dev;
 858
 859         if (dev_id >= cryptodev_globals.nb_devs) {
 860                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 861                 return;
 862         }
 863
 864         dev = &rte_crypto_devices[dev_id];
 865
 866         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 867
 868         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 869         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 870
 871         dev_info->pci_dev = dev->pci_dev;
 872         if (dev->driver)
 873                 dev_info->driver_name = dev->driver->pci_drv.driver.name;
 874 }
 875
 876
 877 int
 878 rte_cryptodev_callback_register(uint8_t dev_id,
 879                         enum rte_cryptodev_event_type event,
 880                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 881 {
 882         struct rte_cryptodev *dev;
 883         struct rte_cryptodev_callback *user_cb;
 884
 885         if (!cb_fn)
 886                 return -EINVAL;
 887
 888         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 889                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 890                 return -EINVAL;
 891         }
 892
 893         dev = &rte_crypto_devices[dev_id];
 894         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 895
 896         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 897                 if (user_cb->cb_fn == cb_fn &&
 898                         user_cb->cb_arg == cb_arg &&
 899                         user_cb->event == event) {
 900                         break;
 901                 }
 902         }
 903
 904         /* create a new callback. */
 905         if (user_cb == NULL) {
 906                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 907                                 sizeof(struct rte_cryptodev_callback), 0);
 908                 if (user_cb != NULL) {
 909                         user_cb->cb_fn = cb_fn;
 910                         user_cb->cb_arg = cb_arg;
 911                         user_cb->event = event;
 912                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
 913                 }
 914         }
 915
 916         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 917         return (user_cb == NULL) ? -ENOMEM : 0;
 918 }
 919
 920 int
 921 rte_cryptodev_callback_unregister(uint8_t dev_id,
 922                         enum rte_cryptodev_event_type event,
 923                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 924 {
 925         int ret;
 926         struct rte_cryptodev *dev;
 927         struct rte_cryptodev_callback *cb, *next;
 928
 929         if (!cb_fn)
 930                 return -EINVAL;
 931
 932         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 933                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 934                 return -EINVAL;
 935         }
 936
 937         dev = &rte_crypto_devices[dev_id];
 938         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 939
 940         ret = 0;
 941         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
 942
 943                 next = TAILQ_NEXT(cb, next);
 944
 945                 if (cb->cb_fn != cb_fn || cb->event != event ||
 946                                 (cb->cb_arg != (void *)-1 &&
 947                                 cb->cb_arg != cb_arg))
 948                         continue;
 949
 950                 /*
 951                  * if this callback is not executing right now,
 952                  * then remove it.
 953                  */
 954                 if (cb->active == 0) {
 955                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
 956                         rte_free(cb);
 957                 } else {
 958                         ret = -EAGAIN;
 959                 }
 960         }
 961
 962         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 963         return ret;
 964 }
 965
 966 void
 967 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
 968         enum rte_cryptodev_event_type event)
 969 {
 970         struct rte_cryptodev_callback *cb_lst;
 971         struct rte_cryptodev_callback dev_cb;
 972
 973         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 974         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
 975                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
 976                         continue;
 977                 dev_cb = *cb_lst;
 978                 cb_lst->active = 1;
 979                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 980                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
 981                                                 dev_cb.cb_arg);
 982                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
 983                 cb_lst->active = 0;
 984         }
 985         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 986 }
 987
 988
 989 static void
 990 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
 991                 void *opaque_arg,
 992                 void *_sess,
 993                 __rte_unused unsigned i)
 994 {
 995         struct rte_cryptodev_sym_session *sess = _sess;
 996         struct rte_cryptodev *dev = opaque_arg;
 997
 998         memset(sess, 0, mp->elt_size);
 999
1000         sess->dev_id = dev->data->dev_id;
1001         sess->dev_type = dev->dev_type;
1002         sess->mp = mp;
1003
1004         if (dev->dev_ops->session_initialize)
1005                 (*dev->dev_ops->session_initialize)(mp, sess);
1006 }
1007
1008 static int
1009 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1010                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1011 {
1012         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1013         unsigned priv_sess_size;
1014
1015         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1016                         dev->data->dev_id);
1017         if (n > sizeof(mp_name)) {
1018                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1019                 return -ENOMEM;
1020         }
1021
1022         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1023         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1024         if (priv_sess_size == 0) {
1025                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1026                                                 dev->data->name);
1027                 return -ENOMEM;
1028         }
1029
1030         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1031                         priv_sess_size;
1032
1033         dev->data->session_pool = rte_mempool_lookup(mp_name);
1034         if (dev->data->session_pool != NULL) {
1035                 if ((dev->data->session_pool->elt_size != elt_size) ||
1036                                 (dev->data->session_pool->cache_size <
1037                                 obj_cache_size) ||
1038                                 (dev->data->session_pool->size < nb_objs)) {
1039
1040                         CDEV_LOG_ERR("%s mempool already exists with different"
1041                                         " initialization parameters", mp_name);
1042                         dev->data->session_pool = NULL;
1043                         return -ENOMEM;
1044                 }
1045         } else {
1046                 dev->data->session_pool = rte_mempool_create(
1047                                 mp_name, /* mempool name */
1048                                 nb_objs, /* number of elements*/
1049                                 elt_size, /* element size*/
1050                                 obj_cache_size, /* Cache size*/
1051                                 0, /* private data size */
1052                                 NULL, /* obj initialization constructor */
1053                                 NULL, /* obj initialization constructor arg */
1054                                 rte_cryptodev_sym_session_init,
1055                                 /**< obj constructor*/
1056                                 dev, /* obj constructor arg */
1057                                 socket_id, /* socket id */
1058                                 0); /* flags */
1059
1060                 if (dev->data->session_pool == NULL) {
1061                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1062                         return -ENOMEM;
1063                 }
1064         }
1065
1066         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1067         return 0;
1068 }
1069
1070 struct rte_cryptodev_sym_session *
1071 rte_cryptodev_sym_session_create(uint8_t dev_id,
1072                 struct rte_crypto_sym_xform *xform)
1073 {
1074         struct rte_cryptodev *dev;
1075         struct rte_cryptodev_sym_session *sess;
1076         void *_sess;
1077
1078         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1079                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1080                 return NULL;
1081         }
1082
1083         dev = &rte_crypto_devices[dev_id];
1084
1085         /* Allocate a session structure from the session pool */
1086         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1087                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1088                 return NULL;
1089         }
1090
1091         sess = (struct rte_cryptodev_sym_session *)_sess;
1092
1093         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1094         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1095                         NULL) {
1096                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1097                                 dev_id);
1098
1099                 /* Return session to mempool */
1100                 rte_mempool_put(sess->mp, _sess);
1101                 return NULL;
1102         }
1103
1104         return sess;
1105 }
1106
1107 struct rte_cryptodev_sym_session *
1108 rte_cryptodev_sym_session_free(uint8_t dev_id,
1109                 struct rte_cryptodev_sym_session *sess)
1110 {
1111         struct rte_cryptodev *dev;
1112
1113         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1114                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1115                 return sess;
1116         }
1117
1118         dev = &rte_crypto_devices[dev_id];
1119
1120         /* Check the session belongs to this device type */
1121         if (sess->dev_type != dev->dev_type)
1122                 return sess;
1123
1124         /* Let device implementation clear session material */
1125         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1126         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1127
1128         /* Return session to mempool */
1129         rte_mempool_put(sess->mp, (void *)sess);
1130
1131         return NULL;
1132 }
1133
1134 /** Initialise rte_crypto_op mempool element */
1135 static void
1136 rte_crypto_op_init(struct rte_mempool *mempool,
1137                 void *opaque_arg,
1138                 void *_op_data,
1139                 __rte_unused unsigned i)
1140 {
1141         struct rte_crypto_op *op = _op_data;
1142         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1143
1144         memset(_op_data, 0, mempool->elt_size);
1145
1146         __rte_crypto_op_reset(op, type);
1147
1148         op->phys_addr = rte_mem_virt2phy(_op_data);
1149         op->mempool = mempool;
1150 }
1151
1152
1153 struct rte_mempool *
1154 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1155                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1156                 int socket_id)
1157 {
1158         struct rte_crypto_op_pool_private *priv;
1159
1160         unsigned elt_size = sizeof(struct rte_crypto_op) +
1161                         sizeof(struct rte_crypto_sym_op) +
1162                         priv_size;
1163
1164         /* lookup mempool in case already allocated */
1165         struct rte_mempool *mp = rte_mempool_lookup(name);
1166
1167         if (mp != NULL) {
1168                 priv = (struct rte_crypto_op_pool_private *)
1169                                 rte_mempool_get_priv(mp);
1170
1171                 if (mp->elt_size != elt_size ||
1172                                 mp->cache_size < cache_size ||
1173                                 mp->size < nb_elts ||
1174                                 priv->priv_size <  priv_size) {
1175                         mp = NULL;
1176                         CDEV_LOG_ERR("Mempool %s already exists but with "
1177                                         "incompatible parameters", name);
1178                         return NULL;
1179                 }
1180                 return mp;
1181         }
1182
1183         mp = rte_mempool_create(
1184                         name,
1185                         nb_elts,
1186                         elt_size,
1187                         cache_size,
1188                         sizeof(struct rte_crypto_op_pool_private),
1189                         NULL,
1190                         NULL,
1191                         rte_crypto_op_init,
1192                         &type,
1193                         socket_id,
1194                         0);
1195
1196         if (mp == NULL) {
1197                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1198                 return NULL;
1199         }
1200
1201         priv = (struct rte_crypto_op_pool_private *)
1202                         rte_mempool_get_priv(mp);
1203
1204         priv->priv_size = priv_size;
1205         priv->type = type;
1206
1207         return mp;
1208 }