projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 9ef91a67 | 1 | /* |
| 9f8540ec | 2 | * Declarations for AIO in the raw protocol |
| 9ef91a67 CH |
3 | * |
| 4 | * Copyright IBM, Corp. 2008 | |
| 5 | * | |
| 6 | * Authors: | |
| 7 | * Anthony Liguori <[email protected]> | |
| 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 | * | |
| 6b620ca3 PB |
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. | |
| 9ef91a67 | 14 | */ |
| ec150c7e | 15 | |
| 9f8540ec PB |
16 | #ifndef QEMU_RAW_AIO_H |
| 17 | #define QEMU_RAW_AIO_H | |
| 9ef91a67 | 18 | |
| ec150c7e | 19 | #include "block/aio.h" |
| 2174f12b | 20 | #include "qemu/coroutine.h" |
| daf015ef MA |
21 | #include "qemu/iov.h" |
| 22 | ||
| 9ef91a67 CH |
23 | /* AIO request types */ |
| 24 | #define QEMU_AIO_READ 0x0001 | |
| 25 | #define QEMU_AIO_WRITE 0x0002 | |
| 26 | #define QEMU_AIO_IOCTL 0x0004 | |
| b2e12bc6 | 27 | #define QEMU_AIO_FLUSH 0x0008 |
| 8238010b | 28 | #define QEMU_AIO_DISCARD 0x0010 |
| 97a2ae34 | 29 | #define QEMU_AIO_WRITE_ZEROES 0x0020 |
| 1efad060 | 30 | #define QEMU_AIO_COPY_RANGE 0x0040 |
| 93f4e2ff | 31 | #define QEMU_AIO_TRUNCATE 0x0080 |
| 9ef91a67 | 32 | #define QEMU_AIO_TYPE_MASK \ |
| 1efad060 FZ |
33 | (QEMU_AIO_READ | \ |
| 34 | QEMU_AIO_WRITE | \ | |
| 35 | QEMU_AIO_IOCTL | \ | |
| 36 | QEMU_AIO_FLUSH | \ | |
| 37 | QEMU_AIO_DISCARD | \ | |
| 38 | QEMU_AIO_WRITE_ZEROES | \ | |
| 93f4e2ff KW |
39 | QEMU_AIO_COPY_RANGE | \ |
| 40 | QEMU_AIO_TRUNCATE) | |
| 9ef91a67 CH |
41 | |
| 42 | /* AIO flags */ | |
| 43 | #define QEMU_AIO_MISALIGNED 0x1000 | |
| 8238010b | 44 | #define QEMU_AIO_BLKDEV 0x2000 |
| 738301e1 | 45 | #define QEMU_AIO_NO_FALLBACK 0x4000 |
| 9ef91a67 CH |
46 | |
| 47 | ||
| 5c6c3a6c | 48 | /* linux-aio.c - Linux native implementation */ |
| 9f8540ec | 49 | #ifdef CONFIG_LINUX_AIO |
| dd7f7ed1 | 50 | typedef struct LinuxAioState LinuxAioState; |
| ed6e2161 | 51 | LinuxAioState *laio_init(Error **errp); |
| dd7f7ed1 | 52 | void laio_cleanup(LinuxAioState *s); |
| 2174f12b | 53 | int coroutine_fn laio_co_submit(BlockDriverState *bs, LinuxAioState *s, int fd, |
| 9d52aa3c | 54 | uint64_t offset, QEMUIOVector *qiov, int type); |
| dd7f7ed1 PB |
55 | void laio_detach_aio_context(LinuxAioState *s, AioContext *old_context); |
| 56 | void laio_attach_aio_context(LinuxAioState *s, AioContext *new_context); | |
| 57 | void laio_io_plug(BlockDriverState *bs, LinuxAioState *s); | |
| 58 | void laio_io_unplug(BlockDriverState *bs, LinuxAioState *s); | |
| 9f8540ec | 59 | #endif |
| 5c6c3a6c | 60 | |
| a2736526 PB |
61 | #ifdef _WIN32 |
| 62 | typedef struct QEMUWin32AIOState QEMUWin32AIOState; | |
| 63 | QEMUWin32AIOState *win32_aio_init(void); | |
| 99cc5989 | 64 | void win32_aio_cleanup(QEMUWin32AIOState *aio); |
| a2736526 | 65 | int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile); |
| 7c84b1b8 | 66 | BlockAIOCB *win32_aio_submit(BlockDriverState *bs, |
| a2736526 | 67 | QEMUWin32AIOState *aio, HANDLE hfile, |
| de7056a3 | 68 | uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, |
| 097310b5 | 69 | BlockCompletionFunc *cb, void *opaque, int type); |
| 85ebd381 SH |
70 | void win32_aio_detach_aio_context(QEMUWin32AIOState *aio, |
| 71 | AioContext *old_context); | |
| 72 | void win32_aio_attach_aio_context(QEMUWin32AIOState *aio, | |
| 73 | AioContext *new_context); | |
| a2736526 PB |
74 | #endif |
| 75 | ||
| 9f8540ec | 76 | #endif /* QEMU_RAW_AIO_H */ |