diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block_int.h | 13 | ||||
| -rw-r--r-- | include/sysemu/block-backend.h | 2 |
2 files changed, 9 insertions, 6 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index 2057156..7d2b152 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -338,11 +338,14 @@ typedef struct BlockLimits { * power of 2, and less than max_pwrite_zeroes if that is set */ uint32_t pwrite_zeroes_alignment; - /* optimal transfer length in sectors */ - int opt_transfer_length; - - /* maximal transfer length in sectors */ - int max_transfer_length; + /* optimal transfer length in bytes (must be power of 2, and + * multiple of bs->request_alignment), or 0 if no preferred size */ + uint32_t opt_transfer; + + /* maximal transfer length in bytes (need not be power of 2, but + * should be multiple of opt_transfer), or 0 for no 32-bit limit. + * For now, anything larger than INT_MAX is clamped down. */ + uint32_t max_transfer; /* memory alignment so that no bounce buffer is needed */ size_t min_mem_alignment; diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index c04af8e..2469a1c 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -170,7 +170,7 @@ bool blk_is_available(BlockBackend *blk); void blk_lock_medium(BlockBackend *blk, bool locked); void blk_eject(BlockBackend *blk, bool eject_flag); int blk_get_flags(BlockBackend *blk); -int blk_get_max_transfer_length(BlockBackend *blk); +uint32_t blk_get_max_transfer(BlockBackend *blk); int blk_get_max_iov(BlockBackend *blk); void blk_set_guest_block_size(BlockBackend *blk, int align); void *blk_try_blockalign(BlockBackend *blk, size_t size); |