diff options
Diffstat (limited to 'include/sysemu/block-backend.h')
| -rw-r--r-- | include/sysemu/block-backend.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index b97a794e45..f63817a7cc 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -16,6 +16,15 @@ #include "qemu/typedefs.h" #include "qapi/error.h" +/* + * TODO Have to include block/block.h for a bunch of block layer + * types. Unfortunately, this pulls in the whole BlockDriverState + * API, which we don't want used by many BlockBackend users. Some of + * the types belong here, and the rest should be split into a common + * header and one for the BlockDriverState API. + */ +#include "block/block.h" + BlockBackend *blk_new(const char *name, Error **errp); BlockBackend *blk_new_with_bs(const char *name, Error **errp); void blk_ref(BlockBackend *blk); @@ -28,4 +37,71 @@ BlockDriverState *blk_bs(BlockBackend *blk); void blk_hide_on_behalf_of_do_drive_del(BlockBackend *blk); +void blk_iostatus_enable(BlockBackend *blk); +int blk_attach_dev(BlockBackend *blk, void *dev); +void blk_attach_dev_nofail(BlockBackend *blk, void *dev); +void blk_detach_dev(BlockBackend *blk, void *dev); +void *blk_get_attached_dev(BlockBackend *blk); +void blk_set_dev_ops(BlockBackend *blk, const BlockDevOps *ops, void *opaque); +int blk_read(BlockBackend *blk, int64_t sector_num, uint8_t *buf, + int nb_sectors); +int blk_read_unthrottled(BlockBackend *blk, int64_t sector_num, uint8_t *buf, + int nb_sectors); +int blk_write(BlockBackend *blk, int64_t sector_num, const uint8_t *buf, + int nb_sectors); +BlockAIOCB *blk_aio_write_zeroes(BlockBackend *blk, int64_t sector_num, + int nb_sectors, BdrvRequestFlags flags, + BlockCompletionFunc *cb, void *opaque); +int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int count); +int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int count); +int64_t blk_getlength(BlockBackend *blk); +void blk_get_geometry(BlockBackend *blk, uint64_t *nb_sectors_ptr); +BlockAIOCB *blk_aio_readv(BlockBackend *blk, int64_t sector_num, + QEMUIOVector *iov, int nb_sectors, + BlockCompletionFunc *cb, void *opaque); +BlockAIOCB *blk_aio_writev(BlockBackend *blk, int64_t sector_num, + QEMUIOVector *iov, int nb_sectors, + BlockCompletionFunc *cb, void *opaque); +BlockAIOCB *blk_aio_flush(BlockBackend *blk, + BlockCompletionFunc *cb, void *opaque); +BlockAIOCB *blk_aio_discard(BlockBackend *blk, + int64_t sector_num, int nb_sectors, + BlockCompletionFunc *cb, void *opaque); +void blk_aio_cancel(BlockAIOCB *acb); +void blk_aio_cancel_async(BlockAIOCB *acb); +int blk_aio_multiwrite(BlockBackend *blk, BlockRequest *reqs, int num_reqs); +int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf); +BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf, + BlockCompletionFunc *cb, void *opaque); +int blk_flush(BlockBackend *blk); +int blk_flush_all(void); +void blk_drain_all(void); +BlockdevOnError blk_get_on_error(BlockBackend *blk, bool is_read); +BlockErrorAction blk_get_error_action(BlockBackend *blk, bool is_read, + int error); +void blk_error_action(BlockBackend *blk, BlockErrorAction action, + bool is_read, int error); +int blk_is_read_only(BlockBackend *blk); +int blk_is_sg(BlockBackend *blk); +int blk_enable_write_cache(BlockBackend *blk); +void blk_set_enable_write_cache(BlockBackend *blk, bool wce); +int blk_is_inserted(BlockBackend *blk); +void blk_lock_medium(BlockBackend *blk, bool locked); +void blk_eject(BlockBackend *blk, bool eject_flag); +int blk_get_flags(BlockBackend *blk); +void blk_set_guest_block_size(BlockBackend *blk, int align); +void *blk_blockalign(BlockBackend *blk, size_t size); +bool blk_op_is_blocked(BlockBackend *blk, BlockOpType op, Error **errp); +void blk_op_unblock(BlockBackend *blk, BlockOpType op, Error *reason); +void blk_op_block_all(BlockBackend *blk, Error *reason); +void blk_op_unblock_all(BlockBackend *blk, Error *reason); +AioContext *blk_get_aio_context(BlockBackend *blk); +void blk_set_aio_context(BlockBackend *blk, AioContext *new_context); +void blk_io_plug(BlockBackend *blk); +void blk_io_unplug(BlockBackend *blk); +BlockAcctStats *blk_get_stats(BlockBackend *blk); + +void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, + BlockCompletionFunc *cb, void *opaque); + #endif |