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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SPDK_BDEV_AIO_H
#define SPDK_BDEV_AIO_H
#include "spdk/stdinc.h"
#include <libaio.h>
#include <sys/epoll.h>
#include <sys/eventfd.h>
#include "spdk/queue.h"
#include "spdk/bdev.h"
#include "spdk/bdev_module.h"
struct bdev_aio_task {
struct iocb iocb;
uint64_t len;
TAILQ_ENTRY(bdev_aio_task) link;
};
struct bdev_aio_io_channel {
io_context_t io_ctx;
uint64_t io_inflight;
struct spdk_io_channel *group_ch;
TAILQ_ENTRY(bdev_aio_io_channel) link;
int efd;
};
typedef void (*spdk_delete_aio_complete)(void *cb_arg, int bdeverrno);
struct file_disk {
struct bdev_aio_task *reset_task;
struct spdk_poller *reset_retry_timer;
struct spdk_bdev disk;
char *filename;
int fd;
TAILQ_ENTRY(file_disk) link;
bool block_size_override;
spdk_delete_aio_complete delete_cb_fn;
void *delete_cb_arg;
};
struct spdk_bdev *create_aio_disk(const char *name, const char *filename, uint32_t block_size);
void delete_aio_disk(struct spdk_bdev *bdev, spdk_delete_aio_complete cb_fn, void *cb_arg);
#endif // SPDK_BDEV_AIO_H
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