Blame - block/raw-aio.h - qemu

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Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	1	/*
Paolo Bonzini	9f8540e	2012-06-09 10:57:37 +0200	[diff] [blame]	2	* Declarations for AIO in the raw protocol
Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	3	*
				4	* Copyright IBM, Corp. 2008
				5	*
				6	* Authors:
				7	* Anthony Liguori <aliguori@us.ibm.com>
				8	*
				9	* This work is licensed under the terms of the GNU GPL, version 2. See
				10	* the COPYING file in the top-level directory.
				11	*
Paolo Bonzini	6b620ca	2012-01-13 17:44:23 +0100	[diff] [blame]	12	* Contributions after 2012-01-13 are licensed under the terms of the
				13	* GNU GPL, version 2 or (at your option) any later version.
Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	14	*/
Paolo Bonzini	9f8540e	2012-06-09 10:57:37 +0200	[diff] [blame]	15	#ifndef QEMU_RAW_AIO_H
				16	#define QEMU_RAW_AIO_H
Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	17
				18	/* AIO request types */
				19	#define QEMU_AIO_READ 0x0001
				20	#define QEMU_AIO_WRITE 0x0002
				21	#define QEMU_AIO_IOCTL 0x0004
Christoph Hellwig	b2e12bc	2009-09-04 19:01:49 +0200	[diff] [blame]	22	#define QEMU_AIO_FLUSH 0x0008
Paolo Bonzini	8238010	2013-01-14 16:26:55 +0100	[diff] [blame]	23	#define QEMU_AIO_DISCARD 0x0010
Paolo Bonzini	97a2ae3	2013-11-22 13:39:57 +0100	[diff] [blame]	24	#define QEMU_AIO_WRITE_ZEROES 0x0020
Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	25	#define QEMU_AIO_TYPE_MASK \
Paolo Bonzini	8238010	2013-01-14 16:26:55 +0100	[diff] [blame]	26	(QEMU_AIO_READ\|QEMU_AIO_WRITE\|QEMU_AIO_IOCTL\|QEMU_AIO_FLUSH\| \
Paolo Bonzini	97a2ae3	2013-11-22 13:39:57 +0100	[diff] [blame]	27	QEMU_AIO_DISCARD\|QEMU_AIO_WRITE_ZEROES)
Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	28
				29	/* AIO flags */
				30	#define QEMU_AIO_MISALIGNED 0x1000
Paolo Bonzini	8238010	2013-01-14 16:26:55 +0100	[diff] [blame]	31	#define QEMU_AIO_BLKDEV 0x2000
Christoph Hellwig	9ef91a6	2009-08-20 16:58:19 +0200	[diff] [blame]	32
				33
Christoph Hellwig	5c6c3a6	2009-08-20 16:58:35 +0200	[diff] [blame]	34	/* linux-aio.c - Linux native implementation */
Paolo Bonzini	9f8540e	2012-06-09 10:57:37 +0200	[diff] [blame]	35	#ifdef CONFIG_LINUX_AIO
Christoph Hellwig	5c6c3a6	2009-08-20 16:58:35 +0200	[diff] [blame]	36	void *laio_init(void);
Stefan Hajnoczi	abd269b	2014-05-08 16:34:48 +0200	[diff] [blame]	37	void laio_cleanup(void *s);
Markus Armbruster	7c84b1b	2014-10-07 13:59:14 +0200	[diff] [blame]	38	BlockAIOCB laio_submit(BlockDriverState bs, void *aio_ctx, int fd,
Christoph Hellwig	5c6c3a6	2009-08-20 16:58:35 +0200	[diff] [blame]	39	int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
Markus Armbruster	097310b	2014-10-07 13:59:15 +0200	[diff] [blame]	40	BlockCompletionFunc cb, void opaque, int type);
Stefan Hajnoczi	c2f3426	2014-05-08 16:34:47 +0200	[diff] [blame]	41	void laio_detach_aio_context(void s, AioContext old_context);
				42	void laio_attach_aio_context(void s, AioContext new_context);
Ming Lei	1b3abdc	2014-07-04 18:04:34 +0800	[diff] [blame]	43	void laio_io_plug(BlockDriverState bs, void aio_ctx);
Paolo Bonzini	de35464	2014-12-11 14:52:29 +0100	[diff] [blame]	44	void laio_io_unplug(BlockDriverState bs, void aio_ctx, bool unplug);
Paolo Bonzini	9f8540e	2012-06-09 10:57:37 +0200	[diff] [blame]	45	#endif
Christoph Hellwig	5c6c3a6	2009-08-20 16:58:35 +0200	[diff] [blame]	46
Paolo Bonzini	a273652	2012-10-26 11:43:58 +0200	[diff] [blame]	47	#ifdef _WIN32
				48	typedef struct QEMUWin32AIOState QEMUWin32AIOState;
				49	QEMUWin32AIOState *win32_aio_init(void);
Stefan Hajnoczi	99cc598	2014-05-08 16:34:49 +0200	[diff] [blame]	50	void win32_aio_cleanup(QEMUWin32AIOState *aio);
Paolo Bonzini	a273652	2012-10-26 11:43:58 +0200	[diff] [blame]	51	int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile);
Markus Armbruster	7c84b1b	2014-10-07 13:59:14 +0200	[diff] [blame]	52	BlockAIOCB win32_aio_submit(BlockDriverState bs,
Paolo Bonzini	a273652	2012-10-26 11:43:58 +0200	[diff] [blame]	53	QEMUWin32AIOState *aio, HANDLE hfile,
				54	int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
Markus Armbruster	097310b	2014-10-07 13:59:15 +0200	[diff] [blame]	55	BlockCompletionFunc cb, void opaque, int type);
Stefan Hajnoczi	85ebd38	2014-05-08 16:34:50 +0200	[diff] [blame]	56	void win32_aio_detach_aio_context(QEMUWin32AIOState *aio,
				57	AioContext *old_context);
				58	void win32_aio_attach_aio_context(QEMUWin32AIOState *aio,
				59	AioContext *new_context);
Paolo Bonzini	a273652	2012-10-26 11:43:58 +0200	[diff] [blame]	60	#endif
				61
Paolo Bonzini	9f8540e	2012-06-09 10:57:37 +0200	[diff] [blame]	62	#endif /* QEMU_RAW_AIO_H */