lib/bbdev/rte_bbdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <stdint.h>
   6 #include <string.h>
   7 #include <stdbool.h>
   8
   9 #include <rte_compat.h>
  10 #include <rte_common.h>
  11 #include <rte_errno.h>
  12 #include <rte_log.h>
  13 #include <rte_debug.h>
  14 #include <rte_eal.h>
  15 #include <rte_malloc.h>
  16 #include <rte_mempool.h>
  17 #include <rte_memzone.h>
  18 #include <rte_lcore.h>
  19 #include <rte_dev.h>
  20 #include <rte_spinlock.h>
  21 #include <rte_tailq.h>
  22 #include <rte_interrupts.h>
  23
  24 #include "rte_bbdev_op.h"
  25 #include "rte_bbdev.h"
  26 #include "rte_bbdev_pmd.h"
  27
  28 #define DEV_NAME "BBDEV"
  29
  30
  31 /* BBDev library logging ID */
  32 RTE_LOG_REGISTER_DEFAULT(bbdev_logtype, NOTICE);
  33
  34 /* Helper macro for logging */
  35 #define rte_bbdev_log(level, fmt, ...) \
  36         rte_log(RTE_LOG_ ## level, bbdev_logtype, fmt "\n", ##__VA_ARGS__)
  37
  38 #define rte_bbdev_log_debug(fmt, ...) \
  39         rte_bbdev_log(DEBUG, RTE_STR(__LINE__) ":%s() " fmt, __func__, \
  40                 ##__VA_ARGS__)
  41
  42 /* Helper macro to check dev_id is valid */
  43 #define VALID_DEV_OR_RET_ERR(dev, dev_id) do { \
  44         if (dev == NULL) { \
  45                 rte_bbdev_log(ERR, "device %u is invalid", dev_id); \
  46                 return -ENODEV; \
  47         } \
  48 } while (0)
  49
  50 /* Helper macro to check dev_ops is valid */
  51 #define VALID_DEV_OPS_OR_RET_ERR(dev, dev_id) do { \
  52         if (dev->dev_ops == NULL) { \
  53                 rte_bbdev_log(ERR, "NULL dev_ops structure in device %u", \
  54                                 dev_id); \
  55                 return -ENODEV; \
  56         } \
  57 } while (0)
  58
  59 /* Helper macro to check that driver implements required function pointer */
  60 #define VALID_FUNC_OR_RET_ERR(func, dev_id) do { \
  61         if (func == NULL) { \
  62                 rte_bbdev_log(ERR, "device %u does not support %s", \
  63                                 dev_id, #func); \
  64                 return -ENOTSUP; \
  65         } \
  66 } while (0)
  67
  68 /* Helper macro to check that queue is valid */
  69 #define VALID_QUEUE_OR_RET_ERR(queue_id, dev) do { \
  70         if (queue_id >= dev->data->num_queues) { \
  71                 rte_bbdev_log(ERR, "Invalid queue_id %u for device %u", \
  72                                 queue_id, dev->data->dev_id); \
  73                 return -ERANGE; \
  74         } \
  75 } while (0)
  76
  77 /* List of callback functions registered by an application */
  78 struct rte_bbdev_callback {
  79         TAILQ_ENTRY(rte_bbdev_callback) next;  /* Callbacks list */
  80         rte_bbdev_cb_fn cb_fn;  /* Callback address */
  81         void *cb_arg;  /* Parameter for callback */
  82         void *ret_param;  /* Return parameter */
  83         enum rte_bbdev_event_type event; /* Interrupt event type */
  84         uint32_t active; /* Callback is executing */
  85 };
  86
  87 /* spinlock for bbdev device callbacks */
  88 static rte_spinlock_t rte_bbdev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  89
  90 /*
  91  * Global array of all devices. This is not static because it's used by the
  92  * inline enqueue and dequeue functions
  93  */
  94 struct rte_bbdev rte_bbdev_devices[RTE_BBDEV_MAX_DEVS];
  95
  96 /* Global array with rte_bbdev_data structures */
  97 static struct rte_bbdev_data *rte_bbdev_data;
  98
  99 /* Memzone name for global bbdev data pool */
 100 static const char *MZ_RTE_BBDEV_DATA = "rte_bbdev_data";
 101
 102 /* Number of currently valid devices */
 103 static uint16_t num_devs;
 104
 105 /* Return pointer to device structure, with validity check */
 106 static struct rte_bbdev *
 107 get_dev(uint16_t dev_id)
 108 {
 109         if (rte_bbdev_is_valid(dev_id))
 110                 return &rte_bbdev_devices[dev_id];
 111         return NULL;
 112 }
 113
 114 /* Allocate global data array */
 115 static int
 116 rte_bbdev_data_alloc(void)
 117 {
 118         const unsigned int flags = 0;
 119         const struct rte_memzone *mz;
 120
 121         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 122                 mz = rte_memzone_reserve(MZ_RTE_BBDEV_DATA,
 123                                 RTE_BBDEV_MAX_DEVS * sizeof(*rte_bbdev_data),
 124                                 rte_socket_id(), flags);
 125         } else
 126                 mz = rte_memzone_lookup(MZ_RTE_BBDEV_DATA);
 127         if (mz == NULL) {
 128                 rte_bbdev_log(CRIT,
 129                                 "Cannot allocate memzone for bbdev port data");
 130                 return -ENOMEM;
 131         }
 132
 133         rte_bbdev_data = mz->addr;
 134         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 135                 memset(rte_bbdev_data, 0,
 136                                 RTE_BBDEV_MAX_DEVS * sizeof(*rte_bbdev_data));
 137         return 0;
 138 }
 139
 140 /*
 141  * Find data allocated for the device or if not found return first unused bbdev
 142  * data. If all structures are in use and none is used by the device return
 143  * NULL.
 144  */
 145 static struct rte_bbdev_data *
 146 find_bbdev_data(const char *name)
 147 {
 148         uint16_t data_id;
 149
 150         for (data_id = 0; data_id < RTE_BBDEV_MAX_DEVS; ++data_id) {
 151                 if (strlen(rte_bbdev_data[data_id].name) == 0) {
 152                         memset(&rte_bbdev_data[data_id], 0,
 153                                         sizeof(struct rte_bbdev_data));
 154                         return &rte_bbdev_data[data_id];
 155                 } else if (strncmp(rte_bbdev_data[data_id].name, name,
 156                                 RTE_BBDEV_NAME_MAX_LEN) == 0)
 157                         return &rte_bbdev_data[data_id];
 158         }
 159
 160         return NULL;
 161 }
 162
 163 /* Find lowest device id with no attached device */
 164 static uint16_t
 165 find_free_dev_id(void)
 166 {
 167         uint16_t i;
 168         for (i = 0; i < RTE_BBDEV_MAX_DEVS; i++) {
 169                 if (rte_bbdev_devices[i].state == RTE_BBDEV_UNUSED)
 170                         return i;
 171         }
 172         return RTE_BBDEV_MAX_DEVS;
 173 }
 174
 175 struct rte_bbdev *
 176 rte_bbdev_allocate(const char *name)
 177 {
 178         int ret;
 179         struct rte_bbdev *bbdev;
 180         uint16_t dev_id;
 181
 182         if (name == NULL) {
 183                 rte_bbdev_log(ERR, "Invalid null device name");
 184                 return NULL;
 185         }
 186
 187         if (rte_bbdev_get_named_dev(name) != NULL) {
 188                 rte_bbdev_log(ERR, "Device \"%s\" is already allocated", name);
 189                 return NULL;
 190         }
 191
 192         dev_id = find_free_dev_id();
 193         if (dev_id == RTE_BBDEV_MAX_DEVS) {
 194                 rte_bbdev_log(ERR, "Reached maximum number of devices");
 195                 return NULL;
 196         }
 197
 198         bbdev = &rte_bbdev_devices[dev_id];
 199
 200         if (rte_bbdev_data == NULL) {
 201                 ret = rte_bbdev_data_alloc();
 202                 if (ret != 0)
 203                         return NULL;
 204         }
 205
 206         bbdev->data = find_bbdev_data(name);
 207         if (bbdev->data == NULL) {
 208                 rte_bbdev_log(ERR,
 209                                 "Max BBDevs already allocated in multi-process environment!");
 210                 return NULL;
 211         }
 212
 213         __atomic_add_fetch(&bbdev->data->process_cnt, 1, __ATOMIC_RELAXED);
 214         bbdev->data->dev_id = dev_id;
 215         bbdev->state = RTE_BBDEV_INITIALIZED;
 216
 217         ret = snprintf(bbdev->data->name, RTE_BBDEV_NAME_MAX_LEN, "%s", name);
 218         if ((ret < 0) || (ret >= RTE_BBDEV_NAME_MAX_LEN)) {
 219                 rte_bbdev_log(ERR, "Copying device name \"%s\" failed", name);
 220                 return NULL;
 221         }
 222
 223         /* init user callbacks */
 224         TAILQ_INIT(&(bbdev->list_cbs));
 225
 226         num_devs++;
 227
 228         rte_bbdev_log_debug("Initialised device %s (id = %u). Num devices = %u",
 229                         name, dev_id, num_devs);
 230
 231         return bbdev;
 232 }
 233
 234 int
 235 rte_bbdev_release(struct rte_bbdev *bbdev)
 236 {
 237         uint16_t dev_id;
 238         struct rte_bbdev_callback *cb, *next;
 239
 240         if (bbdev == NULL) {
 241                 rte_bbdev_log(ERR, "NULL bbdev");
 242                 return -ENODEV;
 243         }
 244         dev_id = bbdev->data->dev_id;
 245
 246         /* free all callbacks from the device's list */
 247         for (cb = TAILQ_FIRST(&bbdev->list_cbs); cb != NULL; cb = next) {
 248
 249                 next = TAILQ_NEXT(cb, next);
 250                 TAILQ_REMOVE(&(bbdev->list_cbs), cb, next);
 251                 rte_free(cb);
 252         }
 253
 254         /* clear shared BBDev Data if no process is using the device anymore */
 255         if (__atomic_sub_fetch(&bbdev->data->process_cnt, 1,
 256                               __ATOMIC_RELAXED) == 0)
 257                 memset(bbdev->data, 0, sizeof(*bbdev->data));
 258
 259         memset(bbdev, 0, sizeof(*bbdev));
 260         num_devs--;
 261         bbdev->state = RTE_BBDEV_UNUSED;
 262
 263         rte_bbdev_log_debug(
 264                         "Un-initialised device id = %u. Num devices = %u",
 265                         dev_id, num_devs);
 266         return 0;
 267 }
 268
 269 struct rte_bbdev *
 270 rte_bbdev_get_named_dev(const char *name)
 271 {
 272         unsigned int i;
 273
 274         if (name == NULL) {
 275                 rte_bbdev_log(ERR, "NULL driver name");
 276                 return NULL;
 277         }
 278
 279         for (i = 0; i < RTE_BBDEV_MAX_DEVS; i++) {
 280                 struct rte_bbdev *dev = get_dev(i);
 281                 if (dev && (strncmp(dev->data->name,
 282                                 name, RTE_BBDEV_NAME_MAX_LEN) == 0))
 283                         return dev;
 284         }
 285
 286         return NULL;
 287 }
 288
 289 uint16_t
 290 rte_bbdev_count(void)
 291 {
 292         return num_devs;
 293 }
 294
 295 bool
 296 rte_bbdev_is_valid(uint16_t dev_id)
 297 {
 298         if ((dev_id < RTE_BBDEV_MAX_DEVS) &&
 299                 rte_bbdev_devices[dev_id].state == RTE_BBDEV_INITIALIZED)
 300                 return true;
 301         return false;
 302 }
 303
 304 uint16_t
 305 rte_bbdev_find_next(uint16_t dev_id)
 306 {
 307         dev_id++;
 308         for (; dev_id < RTE_BBDEV_MAX_DEVS; dev_id++)
 309                 if (rte_bbdev_is_valid(dev_id))
 310                         break;
 311         return dev_id;
 312 }
 313
 314 int
 315 rte_bbdev_setup_queues(uint16_t dev_id, uint16_t num_queues, int socket_id)
 316 {
 317         unsigned int i;
 318         int ret;
 319         struct rte_bbdev_driver_info dev_info;
 320         struct rte_bbdev *dev = get_dev(dev_id);
 321         VALID_DEV_OR_RET_ERR(dev, dev_id);
 322
 323         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 324
 325         if (dev->data->started) {
 326                 rte_bbdev_log(ERR,
 327                                 "Device %u cannot be configured when started",
 328                                 dev_id);
 329                 return -EBUSY;
 330         }
 331
 332         /* Get device driver information to get max number of queues */
 333         VALID_FUNC_OR_RET_ERR(dev->dev_ops->info_get, dev_id);
 334         memset(&dev_info, 0, sizeof(dev_info));
 335         dev->dev_ops->info_get(dev, &dev_info);
 336
 337         if ((num_queues == 0) || (num_queues > dev_info.max_num_queues)) {
 338                 rte_bbdev_log(ERR,
 339                                 "Device %u supports 0 < N <= %u queues, not %u",
 340                                 dev_id, dev_info.max_num_queues, num_queues);
 341                 return -EINVAL;
 342         }
 343
 344         /* If re-configuration, get driver to free existing internal memory */
 345         if (dev->data->queues != NULL) {
 346                 VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_release, dev_id);
 347                 for (i = 0; i < dev->data->num_queues; i++) {
 348                         int ret = dev->dev_ops->queue_release(dev, i);
 349                         if (ret < 0) {
 350                                 rte_bbdev_log(ERR,
 351                                                 "Device %u queue %u release failed",
 352                                                 dev_id, i);
 353                                 return ret;
 354                         }
 355                 }
 356                 /* Call optional device close */
 357                 if (dev->dev_ops->close) {
 358                         ret = dev->dev_ops->close(dev);
 359                         if (ret < 0) {
 360                                 rte_bbdev_log(ERR,
 361                                                 "Device %u couldn't be closed",
 362                                                 dev_id);
 363                                 return ret;
 364                         }
 365                 }
 366                 rte_free(dev->data->queues);
 367         }
 368
 369         /* Allocate queue pointers */
 370         dev->data->queues = rte_calloc_socket(DEV_NAME, num_queues,
 371                         sizeof(dev->data->queues[0]), RTE_CACHE_LINE_SIZE,
 372                                 dev->data->socket_id);
 373         if (dev->data->queues == NULL) {
 374                 rte_bbdev_log(ERR,
 375                                 "calloc of %u queues for device %u on socket %i failed",
 376                                 num_queues, dev_id, dev->data->socket_id);
 377                 return -ENOMEM;
 378         }
 379
 380         dev->data->num_queues = num_queues;
 381
 382         /* Call optional device configuration */
 383         if (dev->dev_ops->setup_queues) {
 384                 ret = dev->dev_ops->setup_queues(dev, num_queues, socket_id);
 385                 if (ret < 0) {
 386                         rte_bbdev_log(ERR,
 387                                         "Device %u memory configuration failed",
 388                                         dev_id);
 389                         goto error;
 390                 }
 391         }
 392
 393         rte_bbdev_log_debug("Device %u set up with %u queues", dev_id,
 394                         num_queues);
 395         return 0;
 396
 397 error:
 398         dev->data->num_queues = 0;
 399         rte_free(dev->data->queues);
 400         dev->data->queues = NULL;
 401         return ret;
 402 }
 403
 404 int
 405 rte_bbdev_intr_enable(uint16_t dev_id)
 406 {
 407         int ret;
 408         struct rte_bbdev *dev = get_dev(dev_id);
 409         VALID_DEV_OR_RET_ERR(dev, dev_id);
 410
 411         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 412
 413         if (dev->data->started) {
 414                 rte_bbdev_log(ERR,
 415                                 "Device %u cannot be configured when started",
 416                                 dev_id);
 417                 return -EBUSY;
 418         }
 419
 420         if (dev->dev_ops->intr_enable) {
 421                 ret = dev->dev_ops->intr_enable(dev);
 422                 if (ret < 0) {
 423                         rte_bbdev_log(ERR,
 424                                         "Device %u interrupts configuration failed",
 425                                         dev_id);
 426                         return ret;
 427                 }
 428                 rte_bbdev_log_debug("Enabled interrupts for dev %u", dev_id);
 429                 return 0;
 430         }
 431
 432         rte_bbdev_log(ERR, "Device %u doesn't support interrupts", dev_id);
 433         return -ENOTSUP;
 434 }
 435
 436 int
 437 rte_bbdev_queue_configure(uint16_t dev_id, uint16_t queue_id,
 438                 const struct rte_bbdev_queue_conf *conf)
 439 {
 440         int ret = 0;
 441         struct rte_bbdev_driver_info dev_info;
 442         struct rte_bbdev *dev = get_dev(dev_id);
 443         const struct rte_bbdev_op_cap *p;
 444         struct rte_bbdev_queue_conf *stored_conf;
 445         const char *op_type_str;
 446         VALID_DEV_OR_RET_ERR(dev, dev_id);
 447
 448         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 449
 450         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
 451
 452         if (dev->data->queues[queue_id].started || dev->data->started) {
 453                 rte_bbdev_log(ERR,
 454                                 "Queue %u of device %u cannot be configured when started",
 455                                 queue_id, dev_id);
 456                 return -EBUSY;
 457         }
 458
 459         VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_release, dev_id);
 460         VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_setup, dev_id);
 461
 462         /* Get device driver information to verify config is valid */
 463         VALID_FUNC_OR_RET_ERR(dev->dev_ops->info_get, dev_id);
 464         memset(&dev_info, 0, sizeof(dev_info));
 465         dev->dev_ops->info_get(dev, &dev_info);
 466
 467         /* Check configuration is valid */
 468         if (conf != NULL) {
 469                 if ((conf->op_type == RTE_BBDEV_OP_NONE) &&
 470                                 (dev_info.capabilities[0].type ==
 471                                 RTE_BBDEV_OP_NONE)) {
 472                         ret = 1;
 473                 } else {
 474                         for (p = dev_info.capabilities;
 475                                         p->type != RTE_BBDEV_OP_NONE; p++) {
 476                                 if (conf->op_type == p->type) {
 477                                         ret = 1;
 478                                         break;
 479                                 }
 480                         }
 481                 }
 482                 if (ret == 0) {
 483                         rte_bbdev_log(ERR, "Invalid operation type");
 484                         return -EINVAL;
 485                 }
 486                 if (conf->queue_size > dev_info.queue_size_lim) {
 487                         rte_bbdev_log(ERR,
 488                                         "Size (%u) of queue %u of device %u must be: <= %u",
 489                                         conf->queue_size, queue_id, dev_id,
 490                                         dev_info.queue_size_lim);
 491                         return -EINVAL;
 492                 }
 493                 if (!rte_is_power_of_2(conf->queue_size)) {
 494                         rte_bbdev_log(ERR,
 495                                         "Size (%u) of queue %u of device %u must be a power of 2",
 496                                         conf->queue_size, queue_id, dev_id);
 497                         return -EINVAL;
 498                 }
 499                 if (conf->op_type == RTE_BBDEV_OP_TURBO_DEC &&
 500                         conf->priority > dev_info.max_ul_queue_priority) {
 501                         rte_bbdev_log(ERR,
 502                                         "Priority (%u) of queue %u of bbdev %u must be <= %u",
 503                                         conf->priority, queue_id, dev_id,
 504                                         dev_info.max_ul_queue_priority);
 505                         return -EINVAL;
 506                 }
 507                 if (conf->op_type == RTE_BBDEV_OP_TURBO_ENC &&
 508                         conf->priority > dev_info.max_dl_queue_priority) {
 509                         rte_bbdev_log(ERR,
 510                                         "Priority (%u) of queue %u of bbdev %u must be <= %u",
 511                                         conf->priority, queue_id, dev_id,
 512                                         dev_info.max_dl_queue_priority);
 513                         return -EINVAL;
 514                 }
 515         }
 516
 517         /* Release existing queue (in case of queue reconfiguration) */
 518         if (dev->data->queues[queue_id].queue_private != NULL) {
 519                 ret = dev->dev_ops->queue_release(dev, queue_id);
 520                 if (ret < 0) {
 521                         rte_bbdev_log(ERR, "Device %u queue %u release failed",
 522                                         dev_id, queue_id);
 523                         return ret;
 524                 }
 525         }
 526
 527         /* Get driver to setup the queue */
 528         ret = dev->dev_ops->queue_setup(dev, queue_id, (conf != NULL) ?
 529                         conf : &dev_info.default_queue_conf);
 530         if (ret < 0) {
 531                 /* This may happen when trying different priority levels */
 532                 rte_bbdev_log(INFO,
 533                                 "Device %u queue %u setup failed",
 534                                 dev_id, queue_id);
 535                 return ret;
 536         }
 537
 538         /* Store configuration */
 539         stored_conf = &dev->data->queues[queue_id].conf;
 540         memcpy(stored_conf,
 541                         (conf != NULL) ? conf : &dev_info.default_queue_conf,
 542                         sizeof(*stored_conf));
 543
 544         op_type_str = rte_bbdev_op_type_str(stored_conf->op_type);
 545         if (op_type_str == NULL)
 546                 return -EINVAL;
 547
 548         rte_bbdev_log_debug("Configured dev%uq%u (size=%u, type=%s, prio=%u)",
 549                         dev_id, queue_id, stored_conf->queue_size, op_type_str,
 550                         stored_conf->priority);
 551
 552         return 0;
 553 }
 554
 555 int
 556 rte_bbdev_start(uint16_t dev_id)
 557 {
 558         int i;
 559         struct rte_bbdev *dev = get_dev(dev_id);
 560         VALID_DEV_OR_RET_ERR(dev, dev_id);
 561
 562         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 563
 564         if (dev->data->started) {
 565                 rte_bbdev_log_debug("Device %u is already started", dev_id);
 566                 return 0;
 567         }
 568
 569         if (dev->dev_ops->start) {
 570                 int ret = dev->dev_ops->start(dev);
 571                 if (ret < 0) {
 572                         rte_bbdev_log(ERR, "Device %u start failed", dev_id);
 573                         return ret;
 574                 }
 575         }
 576
 577         /* Store new state */
 578         for (i = 0; i < dev->data->num_queues; i++)
 579                 if (!dev->data->queues[i].conf.deferred_start)
 580                         dev->data->queues[i].started = true;
 581         dev->data->started = true;
 582
 583         rte_bbdev_log_debug("Started device %u", dev_id);
 584         return 0;
 585 }
 586
 587 int
 588 rte_bbdev_stop(uint16_t dev_id)
 589 {
 590         struct rte_bbdev *dev = get_dev(dev_id);
 591         VALID_DEV_OR_RET_ERR(dev, dev_id);
 592
 593         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 594
 595         if (!dev->data->started) {
 596                 rte_bbdev_log_debug("Device %u is already stopped", dev_id);
 597                 return 0;
 598         }
 599
 600         if (dev->dev_ops->stop)
 601                 dev->dev_ops->stop(dev);
 602         dev->data->started = false;
 603
 604         rte_bbdev_log_debug("Stopped device %u", dev_id);
 605         return 0;
 606 }
 607
 608 int
 609 rte_bbdev_close(uint16_t dev_id)
 610 {
 611         int ret;
 612         uint16_t i;
 613         struct rte_bbdev *dev = get_dev(dev_id);
 614         VALID_DEV_OR_RET_ERR(dev, dev_id);
 615
 616         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 617
 618         if (dev->data->started) {
 619                 ret = rte_bbdev_stop(dev_id);
 620                 if (ret < 0) {
 621                         rte_bbdev_log(ERR, "Device %u stop failed", dev_id);
 622                         return ret;
 623                 }
 624         }
 625
 626         /* Free memory used by queues */
 627         for (i = 0; i < dev->data->num_queues; i++) {
 628                 ret = dev->dev_ops->queue_release(dev, i);
 629                 if (ret < 0) {
 630                         rte_bbdev_log(ERR, "Device %u queue %u release failed",
 631                                         dev_id, i);
 632                         return ret;
 633                 }
 634         }
 635         rte_free(dev->data->queues);
 636
 637         if (dev->dev_ops->close) {
 638                 ret = dev->dev_ops->close(dev);
 639                 if (ret < 0) {
 640                         rte_bbdev_log(ERR, "Device %u close failed", dev_id);
 641                         return ret;
 642                 }
 643         }
 644
 645         /* Clear configuration */
 646         dev->data->queues = NULL;
 647         dev->data->num_queues = 0;
 648
 649         rte_bbdev_log_debug("Closed device %u", dev_id);
 650         return 0;
 651 }
 652
 653 int
 654 rte_bbdev_queue_start(uint16_t dev_id, uint16_t queue_id)
 655 {
 656         struct rte_bbdev *dev = get_dev(dev_id);
 657         VALID_DEV_OR_RET_ERR(dev, dev_id);
 658
 659         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 660
 661         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
 662
 663         if (dev->data->queues[queue_id].started) {
 664                 rte_bbdev_log_debug("Queue %u of device %u already started",
 665                                 queue_id, dev_id);
 666                 return 0;
 667         }
 668
 669         if (dev->dev_ops->queue_start) {
 670                 int ret = dev->dev_ops->queue_start(dev, queue_id);
 671                 if (ret < 0) {
 672                         rte_bbdev_log(ERR, "Device %u queue %u start failed",
 673                                         dev_id, queue_id);
 674                         return ret;
 675                 }
 676         }
 677         dev->data->queues[queue_id].started = true;
 678
 679         rte_bbdev_log_debug("Started queue %u of device %u", queue_id, dev_id);
 680         return 0;
 681 }
 682
 683 int
 684 rte_bbdev_queue_stop(uint16_t dev_id, uint16_t queue_id)
 685 {
 686         struct rte_bbdev *dev = get_dev(dev_id);
 687         VALID_DEV_OR_RET_ERR(dev, dev_id);
 688
 689         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 690
 691         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
 692
 693         if (!dev->data->queues[queue_id].started) {
 694                 rte_bbdev_log_debug("Queue %u of device %u already stopped",
 695                                 queue_id, dev_id);
 696                 return 0;
 697         }
 698
 699         if (dev->dev_ops->queue_stop) {
 700                 int ret = dev->dev_ops->queue_stop(dev, queue_id);
 701                 if (ret < 0) {
 702                         rte_bbdev_log(ERR, "Device %u queue %u stop failed",
 703                                         dev_id, queue_id);
 704                         return ret;
 705                 }
 706         }
 707         dev->data->queues[queue_id].started = false;
 708
 709         rte_bbdev_log_debug("Stopped queue %u of device %u", queue_id, dev_id);
 710         return 0;
 711 }
 712
 713 /* Get device statistics */
 714 static void
 715 get_stats_from_queues(struct rte_bbdev *dev, struct rte_bbdev_stats *stats)
 716 {
 717         unsigned int q_id;
 718         for (q_id = 0; q_id < dev->data->num_queues; q_id++) {
 719                 struct rte_bbdev_stats *q_stats =
 720                                 &dev->data->queues[q_id].queue_stats;
 721
 722                 stats->enqueued_count += q_stats->enqueued_count;
 723                 stats->dequeued_count += q_stats->dequeued_count;
 724                 stats->enqueue_err_count += q_stats->enqueue_err_count;
 725                 stats->dequeue_err_count += q_stats->dequeue_err_count;
 726         }
 727         rte_bbdev_log_debug("Got stats on %u", dev->data->dev_id);
 728 }
 729
 730 static void
 731 reset_stats_in_queues(struct rte_bbdev *dev)
 732 {
 733         unsigned int q_id;
 734         for (q_id = 0; q_id < dev->data->num_queues; q_id++) {
 735                 struct rte_bbdev_stats *q_stats =
 736                                 &dev->data->queues[q_id].queue_stats;
 737
 738                 memset(q_stats, 0, sizeof(*q_stats));
 739         }
 740         rte_bbdev_log_debug("Reset stats on %u", dev->data->dev_id);
 741 }
 742
 743 int
 744 rte_bbdev_stats_get(uint16_t dev_id, struct rte_bbdev_stats *stats)
 745 {
 746         struct rte_bbdev *dev = get_dev(dev_id);
 747         VALID_DEV_OR_RET_ERR(dev, dev_id);
 748
 749         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 750
 751         if (stats == NULL) {
 752                 rte_bbdev_log(ERR, "NULL stats structure");
 753                 return -EINVAL;
 754         }
 755
 756         memset(stats, 0, sizeof(*stats));
 757         if (dev->dev_ops->stats_get != NULL)
 758                 dev->dev_ops->stats_get(dev, stats);
 759         else
 760                 get_stats_from_queues(dev, stats);
 761
 762         rte_bbdev_log_debug("Retrieved stats of device %u", dev_id);
 763         return 0;
 764 }
 765
 766 int
 767 rte_bbdev_stats_reset(uint16_t dev_id)
 768 {
 769         struct rte_bbdev *dev = get_dev(dev_id);
 770         VALID_DEV_OR_RET_ERR(dev, dev_id);
 771
 772         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
 773
 774         if (dev->dev_ops->stats_reset != NULL)
 775                 dev->dev_ops->stats_reset(dev);
 776         else
 777                 reset_stats_in_queues(dev);
 778
 779         rte_bbdev_log_debug("Reset stats of device %u", dev_id);
 780         return 0;
 781 }
 782
 783 int
 784 rte_bbdev_info_get(uint16_t dev_id, struct rte_bbdev_info *dev_info)
 785 {
 786         struct rte_bbdev *dev = get_dev(dev_id);
 787         VALID_DEV_OR_RET_ERR(dev, dev_id);
 788
 789         VALID_FUNC_OR_RET_ERR(dev->dev_ops->info_get, dev_id);
 790
 791         if (dev_info == NULL) {
 792                 rte_bbdev_log(ERR, "NULL dev info structure");
 793                 return -EINVAL;
 794         }
 795
 796         /* Copy data maintained by device interface layer */
 797         memset(dev_info, 0, sizeof(*dev_info));
 798         dev_info->dev_name = dev->data->name;
 799         dev_info->num_queues = dev->data->num_queues;
 800         dev_info->device = dev->device;
 801         dev_info->socket_id = dev->data->socket_id;
 802         dev_info->started = dev->data->started;
 803
 804         /* Copy data maintained by device driver layer */
 805         dev->dev_ops->info_get(dev, &dev_info->drv);
 806
 807         rte_bbdev_log_debug("Retrieved info of device %u", dev_id);
 808         return 0;
 809 }
 810
 811 int
 812 rte_bbdev_queue_info_get(uint16_t dev_id, uint16_t queue_id,
 813                 struct rte_bbdev_queue_info *queue_info)
 814 {
 815         struct rte_bbdev *dev = get_dev(dev_id);
 816         VALID_DEV_OR_RET_ERR(dev, dev_id);
 817
 818         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
 819
 820         if (queue_info == NULL) {
 821                 rte_bbdev_log(ERR, "NULL queue info structure");
 822                 return -EINVAL;
 823         }
 824
 825         /* Copy data to output */
 826         memset(queue_info, 0, sizeof(*queue_info));
 827         queue_info->conf = dev->data->queues[queue_id].conf;
 828         queue_info->started = dev->data->queues[queue_id].started;
 829
 830         rte_bbdev_log_debug("Retrieved info of queue %u of device %u",
 831                         queue_id, dev_id);
 832         return 0;
 833 }
 834
 835 /* Calculate size needed to store bbdev_op, depending on type */
 836 static unsigned int
 837 get_bbdev_op_size(enum rte_bbdev_op_type type)
 838 {
 839         unsigned int result = 0;
 840         switch (type) {
 841         case RTE_BBDEV_OP_NONE:
 842                 result = RTE_MAX(sizeof(struct rte_bbdev_dec_op),
 843                                 sizeof(struct rte_bbdev_enc_op));
 844                 break;
 845         case RTE_BBDEV_OP_TURBO_DEC:
 846                 result = sizeof(struct rte_bbdev_dec_op);
 847                 break;
 848         case RTE_BBDEV_OP_TURBO_ENC:
 849                 result = sizeof(struct rte_bbdev_enc_op);
 850                 break;
 851         case RTE_BBDEV_OP_LDPC_DEC:
 852                 result = sizeof(struct rte_bbdev_dec_op);
 853                 break;
 854         case RTE_BBDEV_OP_LDPC_ENC:
 855                 result = sizeof(struct rte_bbdev_enc_op);
 856                 break;
 857         default:
 858                 break;
 859         }
 860
 861         return result;
 862 }
 863
 864 /* Initialise a bbdev_op structure */
 865 static void
 866 bbdev_op_init(struct rte_mempool *mempool, void *arg, void *element,
 867                 __rte_unused unsigned int n)
 868 {
 869         enum rte_bbdev_op_type type = *(enum rte_bbdev_op_type *)arg;
 870
 871         if (type == RTE_BBDEV_OP_TURBO_DEC || type == RTE_BBDEV_OP_LDPC_DEC) {
 872                 struct rte_bbdev_dec_op *op = element;
 873                 memset(op, 0, mempool->elt_size);
 874                 op->mempool = mempool;
 875         } else if (type == RTE_BBDEV_OP_TURBO_ENC ||
 876                         type == RTE_BBDEV_OP_LDPC_ENC) {
 877                 struct rte_bbdev_enc_op *op = element;
 878                 memset(op, 0, mempool->elt_size);
 879                 op->mempool = mempool;
 880         }
 881 }
 882
 883 struct rte_mempool *
 884 rte_bbdev_op_pool_create(const char *name, enum rte_bbdev_op_type type,
 885                 unsigned int num_elements, unsigned int cache_size,
 886                 int socket_id)
 887 {
 888         struct rte_bbdev_op_pool_private *priv;
 889         struct rte_mempool *mp;
 890         const char *op_type_str;
 891
 892         if (name == NULL) {
 893                 rte_bbdev_log(ERR, "NULL name for op pool");
 894                 return NULL;
 895         }
 896
 897         if (type >= RTE_BBDEV_OP_TYPE_COUNT) {
 898                 rte_bbdev_log(ERR,
 899                                 "Invalid op type (%u), should be less than %u",
 900                                 type, RTE_BBDEV_OP_TYPE_COUNT);
 901                 return NULL;
 902         }
 903
 904         mp = rte_mempool_create(name, num_elements, get_bbdev_op_size(type),
 905                         cache_size, sizeof(struct rte_bbdev_op_pool_private),
 906                         NULL, NULL, bbdev_op_init, &type, socket_id, 0);
 907         if (mp == NULL) {
 908                 rte_bbdev_log(ERR,
 909                                 "Failed to create op pool %s (num ops=%u, op size=%u) with error: %s",
 910                                 name, num_elements, get_bbdev_op_size(type),
 911                                 rte_strerror(rte_errno));
 912                 return NULL;
 913         }
 914
 915         op_type_str = rte_bbdev_op_type_str(type);
 916         if (op_type_str == NULL)
 917                 return NULL;
 918
 919         rte_bbdev_log_debug(
 920                         "Op pool %s created for %u ops (type=%s, cache=%u, socket=%u, size=%u)",
 921                         name, num_elements, op_type_str, cache_size, socket_id,
 922                         get_bbdev_op_size(type));
 923
 924         priv = (struct rte_bbdev_op_pool_private *)rte_mempool_get_priv(mp);
 925         priv->type = type;
 926
 927         return mp;
 928 }
 929
 930 int
 931 rte_bbdev_callback_register(uint16_t dev_id, enum rte_bbdev_event_type event,
 932                 rte_bbdev_cb_fn cb_fn, void *cb_arg)
 933 {
 934         struct rte_bbdev_callback *user_cb;
 935         struct rte_bbdev *dev = get_dev(dev_id);
 936         VALID_DEV_OR_RET_ERR(dev, dev_id);
 937
 938         if (event >= RTE_BBDEV_EVENT_MAX) {
 939                 rte_bbdev_log(ERR,
 940                                 "Invalid event type (%u), should be less than %u",
 941                                 event, RTE_BBDEV_EVENT_MAX);
 942                 return -EINVAL;
 943         }
 944
 945         if (cb_fn == NULL) {
 946                 rte_bbdev_log(ERR, "NULL callback function");
 947                 return -EINVAL;
 948         }
 949
 950         rte_spinlock_lock(&rte_bbdev_cb_lock);
 951
 952         TAILQ_FOREACH(user_cb, &(dev->list_cbs), next) {
 953                 if (user_cb->cb_fn == cb_fn &&
 954                                 user_cb->cb_arg == cb_arg &&
 955                                 user_cb->event == event)
 956                         break;
 957         }
 958
 959         /* create a new callback. */
 960         if (user_cb == NULL) {
 961                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
 962                                 sizeof(struct rte_bbdev_callback), 0);
 963                 if (user_cb != NULL) {
 964                         user_cb->cb_fn = cb_fn;
 965                         user_cb->cb_arg = cb_arg;
 966                         user_cb->event = event;
 967                         TAILQ_INSERT_TAIL(&(dev->list_cbs), user_cb, next);
 968                 }
 969         }
 970
 971         rte_spinlock_unlock(&rte_bbdev_cb_lock);
 972         return (user_cb == NULL) ? -ENOMEM : 0;
 973 }
 974
 975 int
 976 rte_bbdev_callback_unregister(uint16_t dev_id, enum rte_bbdev_event_type event,
 977                 rte_bbdev_cb_fn cb_fn, void *cb_arg)
 978 {
 979         int ret = 0;
 980         struct rte_bbdev_callback *cb, *next;
 981         struct rte_bbdev *dev = get_dev(dev_id);
 982         VALID_DEV_OR_RET_ERR(dev, dev_id);
 983
 984         if (event >= RTE_BBDEV_EVENT_MAX) {
 985                 rte_bbdev_log(ERR,
 986                                 "Invalid event type (%u), should be less than %u",
 987                                 event, RTE_BBDEV_EVENT_MAX);
 988                 return -EINVAL;
 989         }
 990
 991         if (cb_fn == NULL) {
 992                 rte_bbdev_log(ERR,
 993                                 "NULL callback function cannot be unregistered");
 994                 return -EINVAL;
 995         }
 996
 997         dev = &rte_bbdev_devices[dev_id];
 998         rte_spinlock_lock(&rte_bbdev_cb_lock);
 999
1000         for (cb = TAILQ_FIRST(&dev->list_cbs); cb != NULL; cb = next) {
1001
1002                 next = TAILQ_NEXT(cb, next);
1003
1004                 if (cb->cb_fn != cb_fn || cb->event != event ||
1005                                 (cb_arg != (void *)-1 && cb->cb_arg != cb_arg))
1006                         continue;
1007
1008                 /* If this callback is not executing right now, remove it. */
1009                 if (cb->active == 0) {
1010                         TAILQ_REMOVE(&(dev->list_cbs), cb, next);
1011                         rte_free(cb);
1012                 } else
1013                         ret = -EAGAIN;
1014         }
1015
1016         rte_spinlock_unlock(&rte_bbdev_cb_lock);
1017         return ret;
1018 }
1019
1020 void
1021 rte_bbdev_pmd_callback_process(struct rte_bbdev *dev,
1022         enum rte_bbdev_event_type event, void *ret_param)
1023 {
1024         struct rte_bbdev_callback *cb_lst;
1025         struct rte_bbdev_callback dev_cb;
1026
1027         if (dev == NULL) {
1028                 rte_bbdev_log(ERR, "NULL device");
1029                 return;
1030         }
1031
1032         if (dev->data == NULL) {
1033                 rte_bbdev_log(ERR, "NULL data structure");
1034                 return;
1035         }
1036
1037         if (event >= RTE_BBDEV_EVENT_MAX) {
1038                 rte_bbdev_log(ERR,
1039                                 "Invalid event type (%u), should be less than %u",
1040                                 event, RTE_BBDEV_EVENT_MAX);
1041                 return;
1042         }
1043
1044         rte_spinlock_lock(&rte_bbdev_cb_lock);
1045         TAILQ_FOREACH(cb_lst, &(dev->list_cbs), next) {
1046                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1047                         continue;
1048                 dev_cb = *cb_lst;
1049                 cb_lst->active = 1;
1050                 if (ret_param != NULL)
1051                         dev_cb.ret_param = ret_param;
1052
1053                 rte_spinlock_unlock(&rte_bbdev_cb_lock);
1054                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1055                                 dev_cb.cb_arg, dev_cb.ret_param);
1056                 rte_spinlock_lock(&rte_bbdev_cb_lock);
1057                 cb_lst->active = 0;
1058         }
1059         rte_spinlock_unlock(&rte_bbdev_cb_lock);
1060 }
1061
1062 int
1063 rte_bbdev_queue_intr_enable(uint16_t dev_id, uint16_t queue_id)
1064 {
1065         struct rte_bbdev *dev = get_dev(dev_id);
1066         VALID_DEV_OR_RET_ERR(dev, dev_id);
1067         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
1068         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
1069         VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_intr_enable, dev_id);
1070         return dev->dev_ops->queue_intr_enable(dev, queue_id);
1071 }
1072
1073 int
1074 rte_bbdev_queue_intr_disable(uint16_t dev_id, uint16_t queue_id)
1075 {
1076         struct rte_bbdev *dev = get_dev(dev_id);
1077         VALID_DEV_OR_RET_ERR(dev, dev_id);
1078         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
1079         VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
1080         VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_intr_disable, dev_id);
1081         return dev->dev_ops->queue_intr_disable(dev, queue_id);
1082 }
1083
1084 int
1085 rte_bbdev_queue_intr_ctl(uint16_t dev_id, uint16_t queue_id, int epfd, int op,
1086                 void *data)
1087 {
1088         uint32_t vec;
1089         struct rte_bbdev *dev = get_dev(dev_id);
1090         struct rte_intr_handle *intr_handle;
1091         int ret;
1092
1093         VALID_DEV_OR_RET_ERR(dev, dev_id);
1094         VALID_QUEUE_OR_RET_ERR(queue_id, dev);
1095
1096         intr_handle = dev->intr_handle;
1097         if (intr_handle == NULL) {
1098                 rte_bbdev_log(ERR, "Device %u intr handle unset\n", dev_id);
1099                 return -ENOTSUP;
1100         }
1101
1102         if (queue_id >= RTE_MAX_RXTX_INTR_VEC_ID) {
1103                 rte_bbdev_log(ERR, "Device %u queue_id %u is too big\n",
1104                                 dev_id, queue_id);
1105                 return -ENOTSUP;
1106         }
1107
1108         vec = rte_intr_vec_list_index_get(intr_handle, queue_id);
1109         ret = rte_intr_rx_ctl(intr_handle, epfd, op, vec, data);
1110         if (ret && (ret != -EEXIST)) {
1111                 rte_bbdev_log(ERR,
1112                                 "dev %u q %u int ctl error op %d epfd %d vec %u\n",
1113                                 dev_id, queue_id, op, epfd, vec);
1114                 return ret;
1115         }
1116
1117         return 0;
1118 }
1119
1120
1121 const char *
1122 rte_bbdev_op_type_str(enum rte_bbdev_op_type op_type)
1123 {
1124         static const char * const op_types[] = {
1125                 "RTE_BBDEV_OP_NONE",
1126                 "RTE_BBDEV_OP_TURBO_DEC",
1127                 "RTE_BBDEV_OP_TURBO_ENC",
1128                 "RTE_BBDEV_OP_LDPC_DEC",
1129                 "RTE_BBDEV_OP_LDPC_ENC",
1130         };
1131
1132         if (op_type < RTE_BBDEV_OP_TYPE_COUNT)
1133                 return op_types[op_type];
1134
1135         rte_bbdev_log(ERR, "Invalid operation type");
1136         return NULL;
1137 }