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authorPaul Mackerras <paulus@samba.org>2008-05-09 20:12:06 +1000
committerPaul Mackerras <paulus@samba.org>2008-05-09 20:12:06 +1000
commit2a5f2e3e6cd1ce9fb3f8b186b6bc9aa1f1497a92 (patch)
treeb2306840f227972a7c9d4a2b75e516fe81358ce8 /include/linux/virtio_blk.h
parent02539d71fa98d5737bb668b02286c76241e4bac9 (diff)
parent78be76476a34a77f0ea9db2f78ba46a2b0fd5ab5 (diff)
Merge branch 'for-2.6.26' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
Diffstat (limited to 'include/linux/virtio_blk.h')
-rw-r--r--include/linux/virtio_blk.h14
1 files changed, 8 insertions, 6 deletions
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index bca0b10d7947..d4695a3356d0 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -9,6 +9,7 @@
#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 */
struct virtio_blk_config
{
@@ -18,6 +19,12 @@ struct virtio_blk_config
__le32 size_max;
/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
__le32 seg_max;
+ /* geometry the device (if VIRTIO_BLK_F_GEOMETRY) */
+ struct virtio_blk_geometry {
+ __le16 cylinders;
+ __u8 heads;
+ __u8 sectors;
+ } geometry;
} __attribute__((packed));
/* These two define direction. */
@@ -41,13 +48,8 @@ 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 */