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| author | Michal Marek <mmarek@suse.cz> | 2010-10-27 18:15:57 -0400 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-10-27 18:15:57 -0400 |
| commit | b74b953b998bcc2db91b694446f3a2619ec32de6 (patch) | |
| tree | 6ce24caabd730f6ae9287ed0676ec32e6ff31e9d /include/linux/virtio_blk.h | |
| parent | abb438526201c6a79949ad45375c051b6681c253 (diff) | |
| parent | f6f94e2ab1b33f0082ac22d71f66385a60d8157f (diff) | |
Merge commit 'v2.6.36' into kbuild/misc
Update to be able to fix a recent change to scripts/basic/docproc.c
(commit eda603f).
Diffstat (limited to 'include/linux/virtio_blk.h')
| -rw-r--r-- | include/linux/virtio_blk.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h index fd294c56d571..167720d695ed 100644 --- a/include/linux/virtio_blk.h +++ b/include/linux/virtio_blk.h | |||
| @@ -15,6 +15,9 @@ | |||
| 15 | #define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/ | 15 | #define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/ |
| 16 | #define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */ | 16 | #define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */ |
| 17 | #define VIRTIO_BLK_F_FLUSH 9 /* Cache flush command support */ | 17 | #define VIRTIO_BLK_F_FLUSH 9 /* Cache flush command support */ |
| 18 | #define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */ | ||
| 19 | |||
| 20 | #define VIRTIO_BLK_ID_BYTES 20 /* ID string length */ | ||
| 18 | 21 | ||
| 19 | struct virtio_blk_config { | 22 | struct virtio_blk_config { |
| 20 | /* The capacity (in 512-byte sectors). */ | 23 | /* The capacity (in 512-byte sectors). */ |
| @@ -29,8 +32,20 @@ struct virtio_blk_config { | |||
| 29 | __u8 heads; | 32 | __u8 heads; |
| 30 | __u8 sectors; | 33 | __u8 sectors; |
| 31 | } geometry; | 34 | } geometry; |
| 35 | |||
| 32 | /* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */ | 36 | /* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */ |
| 33 | __u32 blk_size; | 37 | __u32 blk_size; |
| 38 | |||
| 39 | /* the next 4 entries are guarded by VIRTIO_BLK_F_TOPOLOGY */ | ||
| 40 | /* exponent for physical block per logical block. */ | ||
| 41 | __u8 physical_block_exp; | ||
| 42 | /* alignment offset in logical blocks. */ | ||
| 43 | __u8 alignment_offset; | ||
| 44 | /* minimum I/O size without performance penalty in logical blocks. */ | ||
| 45 | __u16 min_io_size; | ||
| 46 | /* optimal sustained I/O size in logical blocks. */ | ||
| 47 | __u32 opt_io_size; | ||
| 48 | |||
| 34 | } __attribute__((packed)); | 49 | } __attribute__((packed)); |
| 35 | 50 | ||
| 36 | /* | 51 | /* |
| @@ -54,6 +69,9 @@ struct virtio_blk_config { | |||
| 54 | /* Cache flush command */ | 69 | /* Cache flush command */ |
| 55 | #define VIRTIO_BLK_T_FLUSH 4 | 70 | #define VIRTIO_BLK_T_FLUSH 4 |
| 56 | 71 | ||
| 72 | /* Get device ID command */ | ||
| 73 | #define VIRTIO_BLK_T_GET_ID 8 | ||
| 74 | |||
| 57 | /* Barrier before this op. */ | 75 | /* Barrier before this op. */ |
| 58 | #define VIRTIO_BLK_T_BARRIER 0x80000000 | 76 | #define VIRTIO_BLK_T_BARRIER 0x80000000 |
| 59 | 77 | ||
