virtio: clarify that ABI is usable by any implementations

[linux-2.6-omap-h63xx.git] / include / linux / virtio_blk.h

diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index d4695a3356d018f4198df0d5813070cc4b5cf5ad..6a66c7f30bcb52c0fa4f73a466f55d996818dd31 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 */
@@ -10,18 +12,19 @@
 #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 {
-               __le16 cylinders;
+               __u16 cylinders;
                __u8 heads;
                __u8 sectors;
        } geometry;