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