diff options
| author | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
| commit | d702d12167a2c05a346f49aac7a311d597762495 (patch) | |
| tree | baae42c299cce34d6df24b5d01f8b1d0b481bd9a /include/linux/virtio_blk.h | |
| parent | 9418c65f9bd861d0f7e39aab9cfb3aa6f2275d11 (diff) | |
| parent | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (diff) | |
Merge with mainline to remove plat-omap/Kconfig conflict
Conflicts:
arch/arm/plat-omap/Kconfig
Diffstat (limited to 'include/linux/virtio_blk.h')
| -rw-r--r-- | include/linux/virtio_blk.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h index fd294c56d57..e52029e9891 100644 --- a/include/linux/virtio_blk.h +++ b/include/linux/virtio_blk.h @@ -15,6 +15,7 @@ #define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/ #define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */ #define VIRTIO_BLK_F_FLUSH 9 /* Cache flush command support */ +#define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */ struct virtio_blk_config { /* The capacity (in 512-byte sectors). */ @@ -29,8 +30,20 @@ struct virtio_blk_config { __u8 heads; __u8 sectors; } geometry; + /* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */ __u32 blk_size; + + /* the next 4 entries are guarded by VIRTIO_BLK_F_TOPOLOGY */ + /* exponent for physical block per logical block. */ + __u8 physical_block_exp; + /* alignment offset in logical blocks. */ + __u8 alignment_offset; + /* minimum I/O size without performance penalty in logical blocks. */ + __u16 min_io_size; + /* optimal sustained I/O size in logical blocks. */ + __u32 opt_io_size; + } __attribute__((packed)); /* |