summaryrefslogtreecommitdiffstats
path: root/lib/librte_bbdev/rte_bbdev.h
blob: 25ef409f7535831bd3d88877f4374d82af26c9e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2017 Intel Corporation
 */

#ifndef _RTE_BBDEV_H_
#define _RTE_BBDEV_H_

/**
 * @file rte_bbdev.h
 *
 * Wireless base band device abstraction APIs.
 *
 * @warning
 * @b EXPERIMENTAL: this API may change without prior notice
 *
 * This API allows an application to discover, configure and use a device to
 * process operations. An asynchronous API (enqueue, followed by later dequeue)
 * is used for processing operations.
 *
 * The functions in this API are not thread-safe when called on the same
 * target object (a device, or a queue on a device), with the exception that
 * one thread can enqueue operations to a queue while another thread dequeues
 * from the same queue.
 */

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <stdbool.h>
#include <string.h>

#include <rte_compat.h>
#include <rte_atomic.h>
#include <rte_bus.h>
#include <rte_cpuflags.h>
#include <rte_memory.h>

#include "rte_bbdev_op.h"

#ifndef RTE_BBDEV_MAX_DEVS
#define RTE_BBDEV_MAX_DEVS 128  /**< Max number of devices */
#endif

/** Flags indiciate current state of BBDEV device */
enum rte_bbdev_state {
	RTE_BBDEV_UNUSED,
	RTE_BBDEV_INITIALIZED
};

/**
 * Get the total number of devices that have been successfully initialised.
 *
 * @return
 *   The total number of usable devices.
 */
uint16_t __rte_experimental
rte_bbdev_count(void);

/**
 * Check if a device is valid.
 *
 * @param dev_id
 *   The identifier of the device.
 *
 * @return
 *   true if device ID is valid and device is attached, false otherwise.
 */
bool __rte_experimental
rte_bbdev_is_valid(uint16_t dev_id);

/**
 * Get the next enabled device.
 *
 * @param dev_id
 *   The current device
 *
 * @return
 *   - The next device, or
 *   - RTE_BBDEV_MAX_DEVS if none found
 */
uint16_t __rte_experimental
rte_bbdev_find_next(uint16_t dev_id);

/** Iterate through all enabled devices */
#define RTE_BBDEV_FOREACH(i) for (i = rte_bbdev_find_next(-1); \
		i < RTE_BBDEV_MAX_DEVS; \
		i = rte_bbdev_find_next(i))

/**
 * Setup up device queues.
 * This function must be called on a device before setting up the queues and
 * starting the device. It can also be called when a device is in the stopped
 * state. If any device queues have been configured their configuration will be
 * cleared by a call to this function.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param num_queues
 *   Number of queues to configure on device.
 * @param socket_id
 *   ID of a socket which will be used to allocate memory.
 *
 * @return
 *   - 0 on success
 *   - -ENODEV if dev_id is invalid or the device is corrupted
 *   - -EINVAL if num_queues is invalid, 0 or greater than maximum
 *   - -EBUSY if the identified device has already started
 *   - -ENOMEM if unable to allocate memory
 */
int __rte_experimental
rte_bbdev_setup_queues(uint16_t dev_id, uint16_t num_queues, int socket_id);

/**
 * Enable interrupts.
 * This function may be called before starting the device to enable the
 * interrupts if they are available.
 *
 * @param dev_id
 *   The identifier of the device.
 *
 * @return
 *   - 0 on success
 *   - -ENODEV if dev_id is invalid or the device is corrupted
 *   - -EBUSY if the identified device has already started
 *   - -ENOTSUP if the interrupts are not supported by the device
 */
int __rte_experimental
rte_bbdev_intr_enable(uint16_t dev_id);

/** Device queue configuration structure */
struct rte_bbdev_queue_conf {
	int socket;  /**< NUMA socket used for memory allocation */
	uint32_t queue_size;  /**< Size of queue */
	uint8_t priority;  /**< Queue priority */
	bool deferred_start; /**< Do not start queue when device is started. */
	enum rte_bbdev_op_type op_type; /**< Operation type */
};

/**
 * Configure a queue on a device.
 * This function can be called after device configuration, and before starting.
 * It can also be called when the device or the queue is in the stopped state.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 * @param conf
 *   The queue configuration. If NULL, a default configuration will be used.
 *
 * @return
 *   - 0 on success
 *   - EINVAL if the identified queue size or priority are invalid
 *   - EBUSY if the identified queue or its device have already started
 */
int __rte_experimental
rte_bbdev_queue_configure(uint16_t dev_id, uint16_t queue_id,
		const struct rte_bbdev_queue_conf *conf);

/**
 * Start a device.
 * This is the last step needed before enqueueing operations is possible.
 *
 * @param dev_id
 *   The identifier of the device.
 *
 * @return
 *   - 0 on success
 *   - negative value on failure - as returned from PMD driver
 */
int __rte_experimental
rte_bbdev_start(uint16_t dev_id);

/**
 * Stop a device.
 * The device can be reconfigured, and restarted after being stopped.
 *
 * @param dev_id
 *   The identifier of the device.
 *
 * @return
 *   - 0 on success
 */
int __rte_experimental
rte_bbdev_stop(uint16_t dev_id);

/**
 * Close a device.
 * The device cannot be restarted without reconfiguration!
 *
 * @param dev_id
 *   The identifier of the device.
 *
 * @return
 *   - 0 on success
 */
int __rte_experimental
rte_bbdev_close(uint16_t dev_id);

/**
 * Start a specified queue on a device.
 * This is only needed if the queue has been stopped, or if the deferred_start
 * flag has been set when configuring the queue.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 *
 * @return
 *   - 0 on success
 *   - negative value on failure - as returned from PMD driver
 */
int __rte_experimental
rte_bbdev_queue_start(uint16_t dev_id, uint16_t queue_id);

/**
 * Stop a specified queue on a device, to allow re configuration.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 *
 * @return
 *   - 0 on success
 *   - negative value on failure - as returned from PMD driver
 */
int __rte_experimental
rte_bbdev_queue_stop(uint16_t dev_id, uint16_t queue_id);

/** Device statistics. */
struct rte_bbdev_stats {
	uint64_t enqueued_count;  /**< Count of all operations enqueued */
	uint64_t dequeued_count;  /**< Count of all operations dequeued */
	/** Total error count on operations enqueued */
	uint64_t enqueue_err_count;
	/** Total error count on operations dequeued */
	uint64_t dequeue_err_count;
	/** Offload time */
	uint64_t offload_time;
};

/**
 * Retrieve the general I/O statistics of a device.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param stats
 *   Pointer to structure to where statistics will be copied. On error, this
 *   location may or may not have been modified.
 *
 * @return
 *   - 0 on success
 *   - EINVAL if invalid parameter pointer is provided
 */
int __rte_experimental
rte_bbdev_stats_get(uint16_t dev_id, struct rte_bbdev_stats *stats);

/**
 * Reset the statistics of a device.
 *
 * @param dev_id
 *   The identifier of the device.
 * @return
 *   - 0 on success
 */
int __rte_experimental
rte_bbdev_stats_reset(uint16_t dev_id);

/** Device information supplied by the device's driver */
struct rte_bbdev_driver_info {
	/** Driver name */
	const char *driver_name;

	/** Maximum number of queues supported by the device */
	unsigned int max_num_queues;
	/** Queue size limit (queue size must also be power of 2) */
	uint32_t queue_size_lim;
	/** Set if device off-loads operation to hardware  */
	bool hardware_accelerated;
	/** Max value supported by queue priority for DL */
	uint8_t max_dl_queue_priority;
	/** Max value supported by queue priority for UL */
	uint8_t max_ul_queue_priority;
	/** Set if device supports per-queue interrupts */
	bool queue_intr_supported;
	/** Minimum alignment of buffers, in bytes */
	uint16_t min_alignment;
	/** Default queue configuration used if none is supplied  */
	struct rte_bbdev_queue_conf default_queue_conf;
	/** Device operation capabilities */
	const struct rte_bbdev_op_cap *capabilities;
	/** Device cpu_flag requirements */
	const enum rte_cpu_flag_t *cpu_flag_reqs;
};

/** Macro used at end of bbdev PMD list */
#define RTE_BBDEV_END_OF_CAPABILITIES_LIST() \
	{ RTE_BBDEV_OP_NONE }

/**
 * Device information structure used by an application to discover a devices
 * capabilities and current configuration
 */
struct rte_bbdev_info {
	int socket_id;  /**< NUMA socket that device is on */
	const char *dev_name;  /**< Unique device name */
	const struct rte_bus *bus;  /**< Bus information */
	uint16_t num_queues;  /**< Number of queues currently configured */
	bool started;  /**< Set if device is currently started */
	struct rte_bbdev_driver_info drv;  /**< Info from device driver */
};

/**
 * Retrieve information about a device.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param dev_info
 *   Pointer to structure to where information will be copied. On error, this
 *   location may or may not have been modified.
 *
 * @return
 *   - 0 on success
 *   - EINVAL if invalid parameter pointer is provided
 */
int __rte_experimental
rte_bbdev_info_get(uint16_t dev_id, struct rte_bbdev_info *dev_info);

/** Queue information */
struct rte_bbdev_queue_info {
	/** Current device configuration */
	struct rte_bbdev_queue_conf conf;
	/** Set if queue is currently started */
	bool started;
};

/**
 * Retrieve information about a specific queue on a device.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 * @param queue_info
 *   Pointer to structure to where information will be copied. On error, this
 *   location may or may not have been modified.
 *
 * @return
 *   - 0 on success
 *   - EINVAL if invalid parameter pointer is provided
 */
int __rte_experimental
rte_bbdev_queue_info_get(uint16_t dev_id, uint16_t queue_id,
		struct rte_bbdev_queue_info *queue_info);

/** @internal The data structure associated with each queue of a device. */
struct rte_bbdev_queue_data {
	void *queue_private;  /**< Driver-specific per-queue data */
	struct rte_bbdev_queue_conf conf;  /**< Current configuration */
	struct rte_bbdev_stats queue_stats;  /**< Queue statistics */
	bool started;  /**< Queue state */
};

/** @internal Enqueue encode operations for processing on queue of a device. */
typedef uint16_t (*rte_bbdev_enqueue_enc_ops_t)(
		struct rte_bbdev_queue_data *q_data,
		struct rte_bbdev_enc_op **ops,
		uint16_t num);

/** @internal Enqueue decode operations for processing on queue of a device. */
typedef uint16_t (*rte_bbdev_enqueue_dec_ops_t)(
		struct rte_bbdev_queue_data *q_data,
		struct rte_bbdev_dec_op **ops,
		uint16_t num);

/** @internal Dequeue encode operations from a queue of a device. */
typedef uint16_t (*rte_bbdev_dequeue_enc_ops_t)(
		struct rte_bbdev_queue_data *q_data,
		struct rte_bbdev_enc_op **ops, uint16_t num);

/** @internal Dequeue decode operations from a queue of a device. */
typedef uint16_t (*rte_bbdev_dequeue_dec_ops_t)(
		struct rte_bbdev_queue_data *q_data,
		struct rte_bbdev_dec_op **ops, uint16_t num);

#define RTE_BBDEV_NAME_MAX_LEN  64  /**< Max length of device name */

/**
 * @internal The data associated with a device, with no function pointers.
 * This structure is safe to place in shared memory to be common among
 * different processes in a multi-process configuration. Drivers can access
 * these fields, but should never write to them!
 */
struct rte_bbdev_data {
	char name[RTE_BBDEV_NAME_MAX_LEN]; /**< Unique identifier name */
	void *dev_private;  /**< Driver-specific private data */
	uint16_t num_queues;  /**< Number of currently configured queues */
	struct rte_bbdev_queue_data *queues;  /**< Queue structures */
	uint16_t dev_id;  /**< Device ID */
	int socket_id;  /**< NUMA socket that device is on */
	bool started;  /**< Device run-time state */
	/** Counter of processes using the device */
	rte_atomic16_t process_cnt;
};

/* Forward declarations */
struct rte_bbdev_ops;
struct rte_bbdev_callback;
struct rte_intr_handle;

/** Structure to keep track of registered callbacks */
TAILQ_HEAD(rte_bbdev_cb_list, rte_bbdev_callback);

/**
 * @internal The data structure associated with a device. Drivers can access
 * these fields, but should only write to the *_ops fields.
 */
struct __rte_cache_aligned rte_bbdev {
	/**< Enqueue encode function */
	rte_bbdev_enqueue_enc_ops_t enqueue_enc_ops;
	/**< Enqueue decode function */
	rte_bbdev_enqueue_dec_ops_t enqueue_dec_ops;
	/**< Dequeue encode function */
	rte_bbdev_dequeue_enc_ops_t dequeue_enc_ops;
	/**< Dequeue decode function */
	rte_bbdev_dequeue_dec_ops_t dequeue_dec_ops;
	const struct rte_bbdev_ops *dev_ops;  /**< Functions exported by PMD */
	struct rte_bbdev_data *data;  /**< Pointer to device data */
	enum rte_bbdev_state state;  /**< If device is currently used or not */
	struct rte_device *device; /**< Backing device */
	/** User application callback for interrupts if present */
	struct rte_bbdev_cb_list list_cbs;
	struct rte_intr_handle *intr_handle; /**< Device interrupt handle */
};

/** @internal array of all devices */
extern struct rte_bbdev rte_bbdev_devices[];

/**
 * Enqueue a burst of processed encode operations to a queue of the device.
 * This functions only enqueues as many operations as currently possible and
 * does not block until @p num_ops entries in the queue are available.
 * This function does not provide any error notification to avoid the
 * corresponding overhead.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 * @param ops
 *   Pointer array containing operations to be enqueued Must have at least
 *   @p num_ops entries
 * @param num_ops
 *   The maximum number of operations to enqueue.
 *
 * @return
 *   The number of operations actually enqueued (this is the number of processed
 *   entries in the @p ops array).
 */
static inline uint16_t
rte_bbdev_enqueue_enc_ops(uint16_t dev_id, uint16_t queue_id,
		struct rte_bbdev_enc_op **ops, uint16_t num_ops)
{
	struct rte_bbdev *dev = &rte_bbdev_devices[dev_id];
	struct rte_bbdev_queue_data *q_data = &dev->data->queues[queue_id];
	return dev->enqueue_enc_ops(q_data, ops, num_ops);
}

/**
 * Enqueue a burst of processed decode operations to a queue of the device.
 * This functions only enqueues as many operations as currently possible and
 * does not block until @p num_ops entries in the queue are available.
 * This function does not provide any error notification to avoid the
 * corresponding overhead.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 * @param ops
 *   Pointer array containing operations to be enqueued Must have at least
 *   @p num_ops entries
 * @param num_ops
 *   The maximum number of operations to enqueue.
 *
 * @return
 *   The number of operations actually enqueued (this is the number of processed
 *   entries in the @p ops array).
 */
static inline uint16_t
rte_bbdev_enqueue_dec_ops(uint16_t dev_id, uint16_t queue_id,
		struct rte_bbdev_dec_op **ops, uint16_t num_ops)
{
	struct rte_bbdev *dev = &rte_bbdev_devices[dev_id];
	struct rte_bbdev_queue_data *q_data = &dev->data->queues[queue_id];
	return dev->enqueue_dec_ops(q_data, ops, num_ops);
}

/**
 * Dequeue a burst of processed encode operations from a queue of the device.
 * This functions returns only the current contents of the queue, and does not
 * block until @ num_ops is available.
 * This function does not provide any error notification to avoid the
 * corresponding overhead.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 * @param ops
 *   Pointer array where operations will be dequeued to. Must have at least
 *   @p num_ops entries
 * @param num_ops
 *   The maximum number of operations to dequeue.
 *
 * @return
 *   The number of operations actually dequeued (this is the number of entries
 *   copied into the @p ops array).
 */
static inline uint16_t
rte_bbdev_dequeue_enc_ops(uint16_t dev_id, uint16_t queue_id,
		struct rte_bbdev_enc_op **ops, uint16_t num_ops)
{
	struct rte_bbdev *dev = &rte_bbdev_devices[dev_id];
	struct rte_bbdev_queue_data *q_data = &dev->data->queues[queue_id];
	return dev->dequeue_enc_ops(q_data, ops, num_ops);
}

/**
 * Dequeue a burst of processed decode operations from a queue of the device.
 * This functions returns only the current contents of the queue, and does not
 * block until @ num_ops is available.
 * This function does not provide any error notification to avoid the
 * corresponding overhead.
 *
 * @param dev_id
 *   The identifier of the device.
 * @param queue_id
 *   The index of the queue.
 * @param ops
 *   Pointer array where operations will be dequeued to. Must have at least
 *   @p num_ops entries
 * @param num_ops
 *   The maximum number of operations to dequeue.
 *
 * @return
 *   The number of operations actually dequeued (this is the number of entries
 *   copied into the @p ops array).
 */

static inline uint16_t
rte_bbdev_dequeue_dec_ops(uint16_t dev_id, uint16_t queue_id,
		struct rte_bbdev_dec_op **ops, uint16_t num_ops)
{
	struct rte_bbdev *dev = &rte_bbdev_devices[dev_id];
	struct rte_bbdev_queue_data *q_data = &dev->data->queues[queue_id];
	return dev->dequeue_dec_ops(q_data, ops, num_ops);
}

/** Definitions of device event types */
enum rte_bbdev_event_type {
	RTE_BBDEV_EVENT_UNKNOWN,  /**< unknown event type */
	RTE_BBDEV_EVENT_ERROR,  /**< error interrupt event */
	RTE_BBDEV_EVENT_DEQUEUE,  /**< dequeue event */
	RTE_BBDEV_EVENT_MAX  /**< max value of this enum */
};

/**
 * Typedef for application callback function registered by application
 * software for notification of device events
 *
 * @param dev_id
 *   Device identifier
 * @param event
 *   Device event to register for notification of.
 * @param cb_arg
 *   User specified parameter to be passed to user's callback function.
 * @param ret_param
 *   To pass data back to user application.
 */
typedef void (*rte_bbdev_cb_fn)(uint16_t dev_id,
		enum rte_bbdev_event_type event, void *cb_arg,
		void *ret_param);

/**
 * Register a callback function for specific device id. Multiple callbacks can
 * be added and will be called in the order they are added when an event is
 * triggered. Callbacks are called in a separate thread created by the DPDK EAL.
 *
 * @param dev_id
 *   Device id.
 * @param event
 *   The event that the callback will be registered for.
 * @param cb_fn
 *   User supplied callback function to be called.
 * @param cb_arg
 *   Pointer to parameter that will be passed to the callback.
 *
 * @return
 *   Zero on success, negative value on failure.
 */
int __rte_experimental
rte_bbdev_callback_register(uint16_t dev_id, enum rte_bbdev_event_type event,
		rte_bbdev_cb_fn cb_fn, void *cb_arg);

/**
 * Unregister a callback function for specific device id.
 *
 * @param dev_id
 *   The device identifier.
 * @param event
 *   The event that the callback will be unregistered for.
 * @param cb_fn
 *   User supplied callback function to be unregistered.
 * @param cb_arg
 *   Pointer to the parameter supplied when registering the callback.
 *   (void *)-1 means to remove all registered callbacks with the specified
 *   function address.
 *
 * @return
 *   - 0 on success
 *   - EINVAL if invalid parameter pointer is provided
 *   - EAGAIN if the provided callback pointer does not exist
 */
int __rte_experimental
rte_bbdev_callback_unregister(uint16_t dev_id, enum rte_bbdev_event_type event,
		rte_bbdev_cb_fn cb_fn, void *cb_arg);

/**
 * Enable a one-shot interrupt on the next operation enqueued to a particular
 * queue. The interrupt will be triggered when the operation is ready to be
 * dequeued. To handle the interrupt, an epoll file descriptor must be
 * registered using rte_bbdev_queue_intr_ctl(), and then an application
 * thread/lcore can wait for the interrupt using rte_epoll_wait().
 *
 * @param dev_id
 *   The device identifier.
 * @param queue_id
 *   The index of the queue.
 *
 * @return
 *   - 0 on success
 *   - negative value on failure - as returned from PMD driver
 */
int __rte_experimental
rte_bbdev_queue_intr_enable(uint16_t dev_id, uint16_t queue_id);

/**
 * Disable a one-shot interrupt on the next operation enqueued to a particular
 * queue (if it has been enabled).
 *
 * @param dev_id
 *   The device identifier.
 * @param queue_id
 *   The index of the queue.
 *
 * @return
 *   - 0 on success
 *   - negative value on failure - as returned from PMD driver
 */
int __rte_experimental
rte_bbdev_queue_intr_disable(uint16_t dev_id, uint16_t queue_id);

/**
 * Control interface for per-queue interrupts.
 *
 * @param dev_id
 *   The device identifier.
 * @param queue_id
 *   The index of the queue.
 * @param epfd
 *   Epoll file descriptor that will be associated with the interrupt source.
 *   If the special value RTE_EPOLL_PER_THREAD is provided, a per thread epoll
 *   file descriptor created by the EAL is used (RTE_EPOLL_PER_THREAD can also
 *   be used when calling rte_epoll_wait()).
 * @param op
 *   The operation be performed for the vector.RTE_INTR_EVENT_ADD or
 *   RTE_INTR_EVENT_DEL.
 * @param data
 *   User context, that will be returned in the epdata.data field of the
 *   rte_epoll_event structure filled in by rte_epoll_wait().
 *
 * @return
 *   - 0 on success
 *   - ENOTSUP if interrupts are not supported by the identified device
 *   - negative value on failure - as returned from PMD driver
 */
int __rte_experimental
rte_bbdev_queue_intr_ctl(uint16_t dev_id, uint16_t queue_id, int epfd, int op,
		void *data);

#ifdef __cplusplus
}
#endif

#endif /* _RTE_BBDEV_H_ */