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author | Markus Armbruster <armbru@redhat.com> | 2011-09-06 18:58:54 +0200 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2011-09-12 15:17:21 +0200 |
commit | d1a0739de59501809ad5382030a0d0eba98b69b0 (patch) | |
tree | 64881cbcde20aaa04ea3b548a6c38380fbe3b890 /block.h | |
parent | e4def80b36231e161b91fa984cd0d73b45668f00 (diff) | |
download | qemu-d1a0739de59501809ad5382030a0d0eba98b69b0.zip qemu-d1a0739de59501809ad5382030a0d0eba98b69b0.tar.gz qemu-d1a0739de59501809ad5382030a0d0eba98b69b0.tar.bz2 |
block: Move BlockConf & friends from block_int.h to block.h
It's convenience stuff for block device models, so block.h isn't the
ideal home either, but better than block_int.h.
Permits moving some #include "block_int.h" from device model .h into
.c.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block.h')
-rw-r--r-- | block.h | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -350,5 +350,43 @@ typedef enum { #define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt) void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event); + +/* Convenience for block device models */ + +typedef struct BlockConf { + BlockDriverState *bs; + uint16_t physical_block_size; + uint16_t logical_block_size; + uint16_t min_io_size; + uint32_t opt_io_size; + int32_t bootindex; + uint32_t discard_granularity; +} BlockConf; + +static inline unsigned int get_physical_block_exp(BlockConf *conf) +{ + unsigned int exp = 0, size; + + for (size = conf->physical_block_size; + size > conf->logical_block_size; + size >>= 1) { + exp++; + } + + return exp; +} + +#define DEFINE_BLOCK_PROPERTIES(_state, _conf) \ + DEFINE_PROP_DRIVE("drive", _state, _conf.bs), \ + DEFINE_PROP_UINT16("logical_block_size", _state, \ + _conf.logical_block_size, 512), \ + DEFINE_PROP_UINT16("physical_block_size", _state, \ + _conf.physical_block_size, 512), \ + DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \ + DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0), \ + DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1), \ + DEFINE_PROP_UINT32("discard_granularity", _state, \ + _conf.discard_granularity, 0) + #endif |