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_ring.h>
  63 #include <rte_mempool.h>
  64 #include <rte_malloc.h>
  65 #include <rte_mbuf.h>
  66 #include <rte_errno.h>
  67 #include <rte_spinlock.h>
  68 #include <rte_string_fns.h>
  69
  70 #include "rte_crypto.h"
  71 #include "rte_cryptodev.h"
  72 #include "rte_cryptodev_pmd.h"
  73
  74 struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  75
  76 struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
  77
  78 static struct rte_cryptodev_global cryptodev_globals = {
  79                 .devs                   = &rte_crypto_devices[0],
  80                 .data                   = { NULL },
  81                 .nb_devs                = 0,
  82                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  83 };
  84
  85 struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;
  86
  87 /* spinlock for crypto device callbacks */
  88 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  89
  90
  91 /**
  92  * The user application callback description.
  93  *
  94  * It contains callback address to be registered by user application,
  95  * the pointer to the parameters for callback, and the event type.
  96  */
  97 struct rte_cryptodev_callback {
  98         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  99         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
 100         void *cb_arg;                           /**< Parameter for callback */
 101         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
 102         uint32_t active;                        /**< Callback is executing */
 103 };
 104
 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_MAX_NB_QP_ARG,
 111         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 112         RTE_CRYPTODEV_VDEV_SOCKET_ID
 113 };
 114
 115 static uint8_t
 116 number_of_sockets(void)
 117 {
 118         int sockets = 0;
 119         int i;
 120         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
 121
 122         for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
 123                 if (sockets < ms[i].socket_id)
 124                         sockets = ms[i].socket_id;
 125         }
 126
 127         /* Number of sockets = maximum socket_id + 1 */
 128         return ++sockets;
 129 }
 130
 131 /** Parse integer from integer argument */
 132 static int
 133 parse_integer_arg(const char *key __rte_unused,
 134                 const char *value, void *extra_args)
 135 {
 136         int *i = (int *) extra_args;
 137
 138         *i = atoi(value);
 139         if (*i < 0) {
 140                 CDEV_LOG_ERR("Argument has to be positive.");
 141                 return -1;
 142         }
 143
 144         return 0;
 145 }
 146
 147 int
 148 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
 149                 const char *input_args)
 150 {
 151         struct rte_kvargs *kvlist = NULL;
 152         int ret = 0;
 153
 154         if (params == NULL)
 155                 return -EINVAL;
 156
 157         if (input_args) {
 158                 kvlist = rte_kvargs_parse(input_args,
 159                                 cryptodev_vdev_valid_params);
 160                 if (kvlist == NULL)
 161                         return -1;
 162
 163                 ret = rte_kvargs_process(kvlist,
 164                                         RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
 165                                         &parse_integer_arg,
 166                                         &params->max_nb_queue_pairs);
 167                 if (ret < 0)
 168                         goto free_kvlist;
 169
 170                 ret = rte_kvargs_process(kvlist,
 171                                         RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 172                                         &parse_integer_arg,
 173                                         &params->max_nb_sessions);
 174                 if (ret < 0)
 175                         goto free_kvlist;
 176
 177                 ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 178                                         &parse_integer_arg,
 179                                         &params->socket_id);
 180                 if (ret < 0)
 181                         goto free_kvlist;
 182
 183                 if (params->socket_id >= number_of_sockets()) {
 184                         CDEV_LOG_ERR("Invalid socket id specified to create "
 185                                 "the virtual crypto device on");
 186                         goto free_kvlist;
 187                 }
 188         }
 189
 190 free_kvlist:
 191         rte_kvargs_free(kvlist);
 192         return ret;
 193 }
 194
 195 const char *
 196 rte_cryptodev_get_feature_name(uint64_t flag)
 197 {
 198         switch (flag) {
 199         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 200                 return "SYMMETRIC_CRYPTO";
 201         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 202                 return "ASYMMETRIC_CRYPTO";
 203         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 204                 return "SYM_OPERATION_CHAINING";
 205         case RTE_CRYPTODEV_FF_CPU_SSE:
 206                 return "CPU_SSE";
 207         case RTE_CRYPTODEV_FF_CPU_AVX:
 208                 return "CPU_AVX";
 209         case RTE_CRYPTODEV_FF_CPU_AVX2:
 210                 return "CPU_AVX2";
 211         case RTE_CRYPTODEV_FF_CPU_AESNI:
 212                 return "CPU_AESNI";
 213         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 214                 return "HW_ACCELERATED";
 215
 216         default:
 217                 return NULL;
 218         }
 219 }
 220
 221
 222 int
 223 rte_cryptodev_create_vdev(const char *name, const char *args)
 224 {
 225         return rte_eal_vdev_init(name, args);
 226 }
 227
 228 int
 229 rte_cryptodev_get_dev_id(const char *name) {
 230         unsigned i;
 231
 232         if (name == NULL)
 233                 return -1;
 234
 235         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 236                 if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
 237                                 == 0) &&
 238                                 (rte_cryptodev_globals->devs[i].attached ==
 239                                                 RTE_CRYPTODEV_ATTACHED))
 240                         return i;
 241
 242         return -1;
 243 }
 244
 245 uint8_t
 246 rte_cryptodev_count(void)
 247 {
 248         return rte_cryptodev_globals->nb_devs;
 249 }
 250
 251 uint8_t
 252 rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
 253 {
 254         uint8_t i, dev_count = 0;
 255
 256         for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
 257                 if (rte_cryptodev_globals->devs[i].dev_type == type &&
 258                         rte_cryptodev_globals->devs[i].attached ==
 259                                         RTE_CRYPTODEV_ATTACHED)
 260                         dev_count++;
 261
 262         return dev_count;
 263 }
 264
 265 int
 266 rte_cryptodev_socket_id(uint8_t dev_id)
 267 {
 268         struct rte_cryptodev *dev;
 269
 270         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 271                 return -1;
 272
 273         dev = rte_cryptodev_pmd_get_dev(dev_id);
 274
 275         return dev->data->socket_id;
 276 }
 277
 278 static inline int
 279 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 280                 int socket_id)
 281 {
 282         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 283         const struct rte_memzone *mz;
 284         int n;
 285
 286         /* generate memzone name */
 287         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 288         if (n >= (int)sizeof(mz_name))
 289                 return -EINVAL;
 290
 291         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 292                 mz = rte_memzone_reserve(mz_name,
 293                                 sizeof(struct rte_cryptodev_data),
 294                                 socket_id, 0);
 295         } else
 296                 mz = rte_memzone_lookup(mz_name);
 297
 298         if (mz == NULL)
 299                 return -ENOMEM;
 300
 301         *data = mz->addr;
 302         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 303                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 304
 305         return 0;
 306 }
 307
 308 static uint8_t
 309 rte_cryptodev_find_free_device_index(void)
 310 {
 311         uint8_t dev_id;
 312
 313         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 314                 if (rte_crypto_devices[dev_id].attached ==
 315                                 RTE_CRYPTODEV_DETACHED)
 316                         return dev_id;
 317         }
 318         return RTE_CRYPTO_MAX_DEVS;
 319 }
 320
 321 struct rte_cryptodev *
 322 rte_cryptodev_pmd_allocate(const char *name, enum pmd_type type, int socket_id)
 323 {
 324         struct rte_cryptodev *cryptodev;
 325         uint8_t dev_id;
 326
 327         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 328                 CDEV_LOG_ERR("Crypto device with name %s already "
 329                                 "allocated!", name);
 330                 return NULL;
 331         }
 332
 333         dev_id = rte_cryptodev_find_free_device_index();
 334         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 335                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 336                 return NULL;
 337         }
 338
 339         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 340
 341         if (cryptodev->data == NULL) {
 342                 struct rte_cryptodev_data *cryptodev_data =
 343                                 cryptodev_globals.data[dev_id];
 344
 345                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 346                                 socket_id);
 347
 348                 if (retval < 0 || cryptodev_data == NULL)
 349                         return NULL;
 350
 351                 cryptodev->data = cryptodev_data;
 352
 353                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 354                                 "%s", name);
 355
 356                 cryptodev->data->dev_id = dev_id;
 357                 cryptodev->data->socket_id = socket_id;
 358                 cryptodev->data->dev_started = 0;
 359
 360                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 361                 cryptodev->pmd_type = type;
 362
 363                 cryptodev_globals.nb_devs++;
 364         }
 365
 366         return cryptodev;
 367 }
 368
 369 static inline int
 370 rte_cryptodev_create_unique_device_name(char *name, size_t size,
 371                 struct rte_pci_device *pci_dev)
 372 {
 373         int ret;
 374
 375         if ((name == NULL) || (pci_dev == NULL))
 376                 return -EINVAL;
 377
 378         ret = snprintf(name, size, "%d:%d.%d",
 379                         pci_dev->addr.bus, pci_dev->addr.devid,
 380                         pci_dev->addr.function);
 381         if (ret < 0)
 382                 return ret;
 383         return 0;
 384 }
 385
 386 int
 387 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 388 {
 389         int ret;
 390
 391         if (cryptodev == NULL)
 392                 return -EINVAL;
 393
 394         ret = rte_cryptodev_close(cryptodev->data->dev_id);
 395         if (ret < 0)
 396                 return ret;
 397
 398         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 399         cryptodev_globals.nb_devs--;
 400         return 0;
 401 }
 402
 403 struct rte_cryptodev *
 404 rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 405                 int socket_id)
 406 {
 407         struct rte_cryptodev *cryptodev;
 408
 409         /* allocate device structure */
 410         cryptodev = rte_cryptodev_pmd_allocate(name, PMD_VDEV, socket_id);
 411         if (cryptodev == NULL)
 412                 return NULL;
 413
 414         /* allocate private device structure */
 415         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 416                 cryptodev->data->dev_private =
 417                                 rte_zmalloc_socket("cryptodev device private",
 418                                                 dev_private_size,
 419                                                 RTE_CACHE_LINE_SIZE,
 420                                                 socket_id);
 421
 422                 if (cryptodev->data->dev_private == NULL)
 423                         rte_panic("Cannot allocate memzone for private device"
 424                                         " data");
 425         }
 426
 427         /* initialise user call-back tail queue */
 428         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 429
 430         return cryptodev;
 431 }
 432
 433 static int
 434 rte_cryptodev_init(struct rte_pci_driver *pci_drv,
 435                 struct rte_pci_device *pci_dev)
 436 {
 437         struct rte_cryptodev_driver *cryptodrv;
 438         struct rte_cryptodev *cryptodev;
 439
 440         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 441
 442         int retval;
 443
 444         cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
 445         if (cryptodrv == NULL)
 446                 return -ENODEV;
 447
 448         /* Create unique Crypto device name using PCI address */
 449         rte_cryptodev_create_unique_device_name(cryptodev_name,
 450                         sizeof(cryptodev_name), pci_dev);
 451
 452         cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, PMD_PDEV,
 453                         rte_socket_id());
 454         if (cryptodev == NULL)
 455                 return -ENOMEM;
 456
 457         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 458                 cryptodev->data->dev_private =
 459                                 rte_zmalloc_socket(
 460                                                 "cryptodev private structure",
 461                                                 cryptodrv->dev_private_size,
 462                                                 RTE_CACHE_LINE_SIZE,
 463                                                 rte_socket_id());
 464
 465                 if (cryptodev->data->dev_private == NULL)
 466                         rte_panic("Cannot allocate memzone for private "
 467                                         "device data");
 468         }
 469
 470         cryptodev->pci_dev = pci_dev;
 471         cryptodev->driver = cryptodrv;
 472
 473         /* init user callbacks */
 474         TAILQ_INIT(&(cryptodev->link_intr_cbs));
 475
 476         /* Invoke PMD device initialization function */
 477         retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
 478         if (retval == 0)
 479                 return 0;
 480
 481         CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
 482                         " failed", pci_drv->name,
 483                         (unsigned) pci_dev->id.vendor_id,
 484                         (unsigned) pci_dev->id.device_id);
 485
 486         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 487                 rte_free(cryptodev->data->dev_private);
 488
 489         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 490         cryptodev_globals.nb_devs--;
 491
 492         return -ENXIO;
 493 }
 494
 495 static int
 496 rte_cryptodev_uninit(struct rte_pci_device *pci_dev)
 497 {
 498         const struct rte_cryptodev_driver *cryptodrv;
 499         struct rte_cryptodev *cryptodev;
 500         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 501         int ret;
 502
 503         if (pci_dev == NULL)
 504                 return -EINVAL;
 505
 506         /* Create unique device name using PCI address */
 507         rte_cryptodev_create_unique_device_name(cryptodev_name,
 508                         sizeof(cryptodev_name), pci_dev);
 509
 510         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 511         if (cryptodev == NULL)
 512                 return -ENODEV;
 513
 514         cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
 515         if (cryptodrv == NULL)
 516                 return -ENODEV;
 517
 518         /* Invoke PMD device uninit function */
 519         if (*cryptodrv->cryptodev_uninit) {
 520                 ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
 521                 if (ret)
 522                         return ret;
 523         }
 524
 525         /* free crypto device */
 526         rte_cryptodev_pmd_release_device(cryptodev);
 527
 528         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 529                 rte_free(cryptodev->data->dev_private);
 530
 531         cryptodev->pci_dev = NULL;
 532         cryptodev->driver = NULL;
 533         cryptodev->data = NULL;
 534
 535         return 0;
 536 }
 537
 538 int
 539 rte_cryptodev_pmd_driver_register(struct rte_cryptodev_driver *cryptodrv,
 540                 enum pmd_type type)
 541 {
 542         /* Call crypto device initialization directly if device is virtual */
 543         if (type == PMD_VDEV)
 544                 return rte_cryptodev_init((struct rte_pci_driver *)cryptodrv,
 545                                 NULL);
 546
 547         /*
 548          * Register PCI driver for physical device intialisation during
 549          * PCI probing
 550          */
 551         cryptodrv->pci_drv.devinit = rte_cryptodev_init;
 552         cryptodrv->pci_drv.devuninit = rte_cryptodev_uninit;
 553
 554         rte_eal_pci_register(&cryptodrv->pci_drv);
 555
 556         return 0;
 557 }
 558
 559
 560 uint16_t
 561 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 562 {
 563         struct rte_cryptodev *dev;
 564
 565         dev = &rte_crypto_devices[dev_id];
 566         return dev->data->nb_queue_pairs;
 567 }
 568
 569 static int
 570 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 571                 int socket_id)
 572 {
 573         struct rte_cryptodev_info dev_info;
 574         void **qp;
 575         unsigned i;
 576
 577         if ((dev == NULL) || (nb_qpairs < 1)) {
 578                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 579                                                         dev, nb_qpairs);
 580                 return -EINVAL;
 581         }
 582
 583         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 584                         nb_qpairs, dev->data->dev_id);
 585
 586         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 587
 588         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 589         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 590
 591         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 592                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 593                                 nb_qpairs, dev->data->dev_id);
 594             return -EINVAL;
 595         }
 596
 597         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 598                 dev->data->queue_pairs = rte_zmalloc_socket(
 599                                 "cryptodev->queue_pairs",
 600                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 601                                 RTE_CACHE_LINE_SIZE, socket_id);
 602
 603                 if (dev->data->queue_pairs == NULL) {
 604                         dev->data->nb_queue_pairs = 0;
 605                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 606                                                         "nb_queues %u",
 607                                                         nb_qpairs);
 608                         return -(ENOMEM);
 609                 }
 610         } else { /* re-configure */
 611                 int ret;
 612                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 613
 614                 qp = dev->data->queue_pairs;
 615
 616                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 617                                 -ENOTSUP);
 618
 619                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 620                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 621                         if (ret < 0)
 622                                 return ret;
 623                 }
 624
 625                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 626                                 RTE_CACHE_LINE_SIZE);
 627                 if (qp == NULL) {
 628                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 629                                                 " nb_queues %u", nb_qpairs);
 630                         return -(ENOMEM);
 631                 }
 632
 633                 if (nb_qpairs > old_nb_queues) {
 634                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 635
 636                         memset(qp + old_nb_queues, 0,
 637                                 sizeof(qp[0]) * new_qs);
 638                 }
 639
 640                 dev->data->queue_pairs = qp;
 641
 642         }
 643         dev->data->nb_queue_pairs = nb_qpairs;
 644         return 0;
 645 }
 646
 647 int
 648 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
 649 {
 650         struct rte_cryptodev *dev;
 651
 652         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 653                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 654                 return -EINVAL;
 655         }
 656
 657         dev = &rte_crypto_devices[dev_id];
 658         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 659                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 660                 return -EINVAL;
 661         }
 662
 663         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);
 664
 665         return dev->dev_ops->queue_pair_start(dev, queue_pair_id);
 666
 667 }
 668
 669 int
 670 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
 671 {
 672         struct rte_cryptodev *dev;
 673
 674         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 675                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 676                 return -EINVAL;
 677         }
 678
 679         dev = &rte_crypto_devices[dev_id];
 680         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 681                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 682                 return -EINVAL;
 683         }
 684
 685         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);
 686
 687         return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);
 688
 689 }
 690
 691 static int
 692 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
 693                 unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 694
 695 int
 696 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 697 {
 698         struct rte_cryptodev *dev;
 699         int diag;
 700
 701         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 702                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 703                 return -EINVAL;
 704         }
 705
 706         dev = &rte_crypto_devices[dev_id];
 707
 708         if (dev->data->dev_started) {
 709                 CDEV_LOG_ERR(
 710                     "device %d must be stopped to allow configuration", dev_id);
 711                 return -EBUSY;
 712         }
 713
 714         /* Setup new number of queue pairs and reconfigure device. */
 715         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 716                         config->socket_id);
 717         if (diag != 0) {
 718                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 719                                 dev_id, diag);
 720                 return diag;
 721         }
 722
 723         /* Setup Session mempool for device */
 724         return rte_cryptodev_sym_session_pool_create(dev,
 725                         config->session_mp.nb_objs,
 726                         config->session_mp.cache_size,
 727                         config->socket_id);
 728 }
 729
 730
 731 int
 732 rte_cryptodev_start(uint8_t dev_id)
 733 {
 734         struct rte_cryptodev *dev;
 735         int diag;
 736
 737         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 738
 739         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 740                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 741                 return -EINVAL;
 742         }
 743
 744         dev = &rte_crypto_devices[dev_id];
 745
 746         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 747
 748         if (dev->data->dev_started != 0) {
 749                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 750                         dev_id);
 751                 return 0;
 752         }
 753
 754         diag = (*dev->dev_ops->dev_start)(dev);
 755         if (diag == 0)
 756                 dev->data->dev_started = 1;
 757         else
 758                 return diag;
 759
 760         return 0;
 761 }
 762
 763 void
 764 rte_cryptodev_stop(uint8_t dev_id)
 765 {
 766         struct rte_cryptodev *dev;
 767
 768         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 769                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 770                 return;
 771         }
 772
 773         dev = &rte_crypto_devices[dev_id];
 774
 775         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 776
 777         if (dev->data->dev_started == 0) {
 778                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 779                         dev_id);
 780                 return;
 781         }
 782
 783         dev->data->dev_started = 0;
 784         (*dev->dev_ops->dev_stop)(dev);
 785 }
 786
 787 int
 788 rte_cryptodev_close(uint8_t dev_id)
 789 {
 790         struct rte_cryptodev *dev;
 791         int retval;
 792
 793         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 794                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 795                 return -1;
 796         }
 797
 798         dev = &rte_crypto_devices[dev_id];
 799
 800         /* Device must be stopped before it can be closed */
 801         if (dev->data->dev_started == 1) {
 802                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 803                                 dev_id);
 804                 return -EBUSY;
 805         }
 806
 807         /* We can't close the device if there are outstanding sessions in use */
 808         if (dev->data->session_pool != NULL) {
 809                 if (!rte_mempool_full(dev->data->session_pool)) {
 810                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 811                                         "has sessions still in use, free "
 812                                         "all sessions before calling close",
 813                                         (unsigned)dev_id);
 814                         return -EBUSY;
 815                 }
 816         }
 817
 818         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 819         retval = (*dev->dev_ops->dev_close)(dev);
 820
 821         if (retval < 0)
 822                 return retval;
 823
 824         return 0;
 825 }
 826
 827 int
 828 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 829                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 830 {
 831         struct rte_cryptodev *dev;
 832
 833         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 834                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 835                 return -EINVAL;
 836         }
 837
 838         dev = &rte_crypto_devices[dev_id];
 839         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 840                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 841                 return -EINVAL;
 842         }
 843
 844         if (dev->data->dev_started) {
 845                 CDEV_LOG_ERR(
 846                     "device %d must be stopped to allow configuration", dev_id);
 847                 return -EBUSY;
 848         }
 849
 850         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 851
 852         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 853                         socket_id);
 854 }
 855
 856
 857 int
 858 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 859 {
 860         struct rte_cryptodev *dev;
 861
 862         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 863                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 864                 return -ENODEV;
 865         }
 866
 867         if (stats == NULL) {
 868                 CDEV_LOG_ERR("Invalid stats ptr");
 869                 return -EINVAL;
 870         }
 871
 872         dev = &rte_crypto_devices[dev_id];
 873         memset(stats, 0, sizeof(*stats));
 874
 875         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 876         (*dev->dev_ops->stats_get)(dev, stats);
 877         return 0;
 878 }
 879
 880 void
 881 rte_cryptodev_stats_reset(uint8_t dev_id)
 882 {
 883         struct rte_cryptodev *dev;
 884
 885         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 886                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 887                 return;
 888         }
 889
 890         dev = &rte_crypto_devices[dev_id];
 891
 892         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 893         (*dev->dev_ops->stats_reset)(dev);
 894 }
 895
 896
 897 void
 898 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 899 {
 900         struct rte_cryptodev *dev;
 901
 902         if (dev_id >= cryptodev_globals.nb_devs) {
 903                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
 904                 return;
 905         }
 906
 907         dev = &rte_crypto_devices[dev_id];
 908
 909         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
 910
 911         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 912         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 913
 914         dev_info->pci_dev = dev->pci_dev;
 915         if (dev->driver)
 916                 dev_info->driver_name = dev->driver->pci_drv.name;
 917 }
 918
 919
 920 int
 921 rte_cryptodev_callback_register(uint8_t dev_id,
 922                         enum rte_cryptodev_event_type event,
 923                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 924 {
 925         struct rte_cryptodev *dev;
 926         struct rte_cryptodev_callback *user_cb;
 927
 928         if (!cb_fn)
 929                 return -EINVAL;
 930
 931         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 932                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 933                 return -EINVAL;
 934         }
 935
 936         dev = &rte_crypto_devices[dev_id];
 937         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 938
 939         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
 940                 if (user_cb->cb_fn == cb_fn &&
 941                         user_cb->cb_arg == cb_arg &&
 942                         user_cb->event == event) {
 943                         break;
 944                 }
 945         }
 946
 947         /* create a new callback. */
 948         if (user_cb == NULL) {
 949                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 950                                 sizeof(struct rte_cryptodev_callback), 0);
 951                 if (user_cb != NULL) {
 952                         user_cb->cb_fn = cb_fn;
 953                         user_cb->cb_arg = cb_arg;
 954                         user_cb->event = event;
 955                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
 956                 }
 957         }
 958
 959         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
 960         return (user_cb == NULL) ? -ENOMEM : 0;
 961 }
 962
 963 int
 964 rte_cryptodev_callback_unregister(uint8_t dev_id,
 965                         enum rte_cryptodev_event_type event,
 966                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
 967 {
 968         int ret;
 969         struct rte_cryptodev *dev;
 970         struct rte_cryptodev_callback *cb, *next;
 971
 972         if (!cb_fn)
 973                 return -EINVAL;
 974
 975         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 976                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 977                 return -EINVAL;
 978         }
 979
 980         dev = &rte_crypto_devices[dev_id];
 981         rte_spinlock_lock(&rte_cryptodev_cb_lock);
 982
 983         ret = 0;
 984         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
 985
 986                 next = TAILQ_NEXT(cb, next);
 987
 988                 if (cb->cb_fn != cb_fn || cb->event != event ||
 989                                 (cb->cb_arg != (void *)-1 &&
 990                                 cb->cb_arg != cb_arg))
 991                         continue;
 992
 993                 /*
 994                  * if this callback is not executing right now,
 995                  * then remove it.
 996                  */
 997                 if (cb->active == 0) {
 998                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
 999                         rte_free(cb);
1000                 } else {
1001                         ret = -EAGAIN;
1002                 }
1003         }
1004
1005         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1006         return ret;
1007 }
1008
1009 void
1010 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1011         enum rte_cryptodev_event_type event)
1012 {
1013         struct rte_cryptodev_callback *cb_lst;
1014         struct rte_cryptodev_callback dev_cb;
1015
1016         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1017         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1018                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1019                         continue;
1020                 dev_cb = *cb_lst;
1021                 cb_lst->active = 1;
1022                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1023                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1024                                                 dev_cb.cb_arg);
1025                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1026                 cb_lst->active = 0;
1027         }
1028         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1029 }
1030
1031
1032 static void
1033 rte_cryptodev_sym_session_init(struct rte_mempool *mp,
1034                 void *opaque_arg,
1035                 void *_sess,
1036                 __rte_unused unsigned i)
1037 {
1038         struct rte_cryptodev_sym_session *sess = _sess;
1039         struct rte_cryptodev *dev = opaque_arg;
1040
1041         memset(sess, 0, mp->elt_size);
1042
1043         sess->dev_id = dev->data->dev_id;
1044         sess->dev_type = dev->dev_type;
1045         sess->mp = mp;
1046
1047         if (dev->dev_ops->session_initialize)
1048                 (*dev->dev_ops->session_initialize)(mp, sess);
1049 }
1050
1051 static int
1052 rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
1053                 unsigned nb_objs, unsigned obj_cache_size, int socket_id)
1054 {
1055         char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
1056         unsigned priv_sess_size;
1057
1058         unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
1059                         dev->data->dev_id);
1060         if (n > sizeof(mp_name)) {
1061                 CDEV_LOG_ERR("Unable to create unique name for session mempool");
1062                 return -ENOMEM;
1063         }
1064
1065         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
1066         priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
1067         if (priv_sess_size == 0) {
1068                 CDEV_LOG_ERR("%s returned and invalid private session size ",
1069                                                 dev->data->name);
1070                 return -ENOMEM;
1071         }
1072
1073         unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
1074                         priv_sess_size;
1075
1076         dev->data->session_pool = rte_mempool_lookup(mp_name);
1077         if (dev->data->session_pool != NULL) {
1078                 if ((dev->data->session_pool->elt_size != elt_size) ||
1079                                 (dev->data->session_pool->cache_size <
1080                                 obj_cache_size) ||
1081                                 (dev->data->session_pool->size < nb_objs)) {
1082
1083                         CDEV_LOG_ERR("%s mempool already exists with different"
1084                                         " initialization parameters", mp_name);
1085                         dev->data->session_pool = NULL;
1086                         return -ENOMEM;
1087                 }
1088         } else {
1089                 dev->data->session_pool = rte_mempool_create(
1090                                 mp_name, /* mempool name */
1091                                 nb_objs, /* number of elements*/
1092                                 elt_size, /* element size*/
1093                                 obj_cache_size, /* Cache size*/
1094                                 0, /* private data size */
1095                                 NULL, /* obj initialization constructor */
1096                                 NULL, /* obj initialization constructor arg */
1097                                 rte_cryptodev_sym_session_init,
1098                                 /**< obj constructor*/
1099                                 dev, /* obj constructor arg */
1100                                 socket_id, /* socket id */
1101                                 0); /* flags */
1102
1103                 if (dev->data->session_pool == NULL) {
1104                         CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
1105                         return -ENOMEM;
1106                 }
1107         }
1108
1109         CDEV_LOG_DEBUG("%s mempool created!", mp_name);
1110         return 0;
1111 }
1112
1113 struct rte_cryptodev_sym_session *
1114 rte_cryptodev_sym_session_create(uint8_t dev_id,
1115                 struct rte_crypto_sym_xform *xform)
1116 {
1117         struct rte_cryptodev *dev;
1118         struct rte_cryptodev_sym_session *sess;
1119         void *_sess;
1120
1121         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1122                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1123                 return NULL;
1124         }
1125
1126         dev = &rte_crypto_devices[dev_id];
1127
1128         /* Allocate a session structure from the session pool */
1129         if (rte_mempool_get(dev->data->session_pool, &_sess)) {
1130                 CDEV_LOG_ERR("Couldn't get object from session mempool");
1131                 return NULL;
1132         }
1133
1134         sess = (struct rte_cryptodev_sym_session *)_sess;
1135
1136         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
1137         if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
1138                         NULL) {
1139                 CDEV_LOG_ERR("dev_id %d failed to configure session details",
1140                                 dev_id);
1141
1142                 /* Return session to mempool */
1143                 rte_mempool_put(sess->mp, _sess);
1144                 return NULL;
1145         }
1146
1147         return sess;
1148 }
1149
1150 struct rte_cryptodev_sym_session *
1151 rte_cryptodev_sym_session_free(uint8_t dev_id,
1152                 struct rte_cryptodev_sym_session *sess)
1153 {
1154         struct rte_cryptodev *dev;
1155
1156         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1157                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1158                 return sess;
1159         }
1160
1161         dev = &rte_crypto_devices[dev_id];
1162
1163         /* Check the session belongs to this device type */
1164         if (sess->dev_type != dev->dev_type)
1165                 return sess;
1166
1167         /* Let device implementation clear session material */
1168         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
1169         dev->dev_ops->session_clear(dev, (void *)sess->_private);
1170
1171         /* Return session to mempool */
1172         rte_mempool_put(sess->mp, (void *)sess);
1173
1174         return NULL;
1175 }
1176
1177 /** Initialise rte_crypto_op mempool element */
1178 static void
1179 rte_crypto_op_init(struct rte_mempool *mempool,
1180                 void *opaque_arg,
1181                 void *_op_data,
1182                 __rte_unused unsigned i)
1183 {
1184         struct rte_crypto_op *op = _op_data;
1185         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1186
1187         memset(_op_data, 0, mempool->elt_size);
1188
1189         __rte_crypto_op_reset(op, type);
1190
1191         op->phys_addr = rte_mem_virt2phy(_op_data);
1192         op->mempool = mempool;
1193 }
1194
1195
1196 struct rte_mempool *
1197 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1198                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1199                 int socket_id)
1200 {
1201         struct rte_crypto_op_pool_private *priv;
1202
1203         unsigned elt_size = sizeof(struct rte_crypto_op) +
1204                         sizeof(struct rte_crypto_sym_op) +
1205                         priv_size;
1206
1207         /* lookup mempool in case already allocated */
1208         struct rte_mempool *mp = rte_mempool_lookup(name);
1209
1210         if (mp != NULL) {
1211                 priv = (struct rte_crypto_op_pool_private *)
1212                                 rte_mempool_get_priv(mp);
1213
1214                 if (mp->elt_size != elt_size ||
1215                                 mp->cache_size < cache_size ||
1216                                 mp->size < nb_elts ||
1217                                 priv->priv_size <  priv_size) {
1218                         mp = NULL;
1219                         CDEV_LOG_ERR("Mempool %s already exists but with "
1220                                         "incompatible parameters", name);
1221                         return NULL;
1222                 }
1223                 return mp;
1224         }
1225
1226         mp = rte_mempool_create(
1227                         name,
1228                         nb_elts,
1229                         elt_size,
1230                         cache_size,
1231                         sizeof(struct rte_crypto_op_pool_private),
1232                         NULL,
1233                         NULL,
1234                         rte_crypto_op_init,
1235                         &type,
1236                         socket_id,
1237                         0);
1238
1239         if (mp == NULL) {
1240                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1241                 return NULL;
1242         }
1243
1244         priv = (struct rte_crypto_op_pool_private *)
1245                         rte_mempool_get_priv(mp);
1246
1247         priv->priv_size = priv_size;
1248         priv->type = type;
1249
1250         return mp;
1251 }