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authorDavid Woodhouse <David.Woodhouse@intel.com>2008-07-11 14:36:25 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-11 14:36:25 +0100
commita8931ef380c92d121ae74ecfb03b2d63f72eea6f (patch)
tree980fb6b019e11e6cb1ece55b7faff184721a8053 /include/linux/virtio_blk.h
parent[MTD] [NAND] Fix checkpatch warnings which showed up when atmel_nand.c moved (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 (diff)
downloadlinux-dev-a8931ef380c92d121ae74ecfb03b2d63f72eea6f.tar.xz
linux-dev-a8931ef380c92d121ae74ecfb03b2d63f72eea6f.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/linux/virtio_blk.h')
-rw-r--r--include/linux/virtio_blk.h21
1 files changed, 12 insertions, 9 deletions
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index bca0b10d7947..5f79a5f9de79 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -9,15 +9,23 @@
#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */
#define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */
#define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */
+#define VIRTIO_BLK_F_GEOMETRY 4 /* Legacy geometry available */
+#define VIRTIO_BLK_F_RO 5 /* Disk is read-only */
struct virtio_blk_config
{
/* The capacity (in 512-byte sectors). */
- __le64 capacity;
+ __u64 capacity;
/* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */
- __le32 size_max;
+ __u32 size_max;
/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
- __le32 seg_max;
+ __u32 seg_max;
+ /* geometry the device (if VIRTIO_BLK_F_GEOMETRY) */
+ struct virtio_blk_geometry {
+ __u16 cylinders;
+ __u8 heads;
+ __u8 sectors;
+ } geometry;
} __attribute__((packed));
/* These two define direction. */
@@ -41,13 +49,8 @@ struct virtio_blk_outhdr
__u64 sector;
};
+/* And this is the final byte of the write scatter-gather list. */
#define VIRTIO_BLK_S_OK 0
#define VIRTIO_BLK_S_IOERR 1
#define VIRTIO_BLK_S_UNSUPP 2
-
-/* This is the first element of the write scatter-gather list */
-struct virtio_blk_inhdr
-{
- unsigned char status;
-};
#endif /* _LINUX_VIRTIO_BLK_H */