Merge git://git.infradead.org/~dwmw2/random-2.6

[pandora-kernel.git] / include / linux / virtio_blk.h

diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index 5f79a5f..c1aef85 100644 (file)
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -1,5 +1,7 @@
 #ifndef _LINUX_VIRTIO_BLK_H
 #define _LINUX_VIRTIO_BLK_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
 #include <linux/virtio_config.h>
 
 /* The ID for virtio_block */
@@ -11,6 +13,7 @@
 #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 */
+#define VIRTIO_BLK_F_BLK_SIZE  6       /* Block size of disk is available*/
 
 struct virtio_blk_config
 {
@@ -26,6 +29,8 @@ struct virtio_blk_config
                __u8 heads;
                __u8 sectors;
        } geometry;
+       /* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */
+       __u32 blk_size;
 } __attribute__((packed));
 
 /* These two define direction. */