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