Commit 40e04c48 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

virtio_blk: correct tags for config space fields 



Tag config space fields as having virtio endian-ness.

Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: default avatarCornelia Huck <cohuck@redhat.com>
Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
parent c73cb10c

include/uapi/linux/virtio_blk.h

+13 −13
Original line number Diff line number Diff line
@@ -57,20 +57,20 @@ 


struct virtio_blk_config {

	/* The capacity (in 512-byte sectors). */

	__u64 capacity;

	__virtio64 capacity;

	/* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */

	__u32 size_max;

	__virtio32 size_max;

	/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */

	__u32 seg_max;

	__virtio32 seg_max;

	/* geometry of the device (if VIRTIO_BLK_F_GEOMETRY) */

	struct virtio_blk_geometry {

		__u16 cylinders;

		__virtio16 cylinders;

		__u8 heads;

		__u8 sectors;

	} geometry;



	/* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */

	__u32 blk_size;

	__virtio32 blk_size;



	/* the next 4 entries are guarded by VIRTIO_BLK_F_TOPOLOGY  */

	/* exponent for physical block per logical block. */
@@ -78,42 +78,42 @@ struct virtio_blk_config { 
	/* alignment offset in logical blocks. */

	__u8 alignment_offset;

	/* minimum I/O size without performance penalty in logical blocks. */

	__u16 min_io_size;

	__virtio16 min_io_size;

	/* optimal sustained I/O size in logical blocks. */

	__u32 opt_io_size;

	__virtio32 opt_io_size;



	/* writeback mode (if VIRTIO_BLK_F_CONFIG_WCE) */

	__u8 wce;

	__u8 unused;



	/* number of vqs, only available when VIRTIO_BLK_F_MQ is set */

	__u16 num_queues;

	__virtio16 num_queues;



	/* the next 3 entries are guarded by VIRTIO_BLK_F_DISCARD */

	/*

	 * The maximum discard sectors (in 512-byte sectors) for

	 * one segment.

	 */

	__u32 max_discard_sectors;

	__virtio32 max_discard_sectors;

	/*

	 * The maximum number of discard segments in a

	 * discard command.

	 */

	__u32 max_discard_seg;

	__virtio32 max_discard_seg;

	/* Discard commands must be aligned to this number of sectors. */

	__u32 discard_sector_alignment;

	__virtio32 discard_sector_alignment;



	/* the next 3 entries are guarded by VIRTIO_BLK_F_WRITE_ZEROES */

	/*

	 * The maximum number of write zeroes sectors (in 512-byte sectors) in

	 * one segment.

	 */

	__u32 max_write_zeroes_sectors;

	__virtio32 max_write_zeroes_sectors;

	/*

	 * The maximum number of segments in a write zeroes

	 * command.

	 */

	__u32 max_write_zeroes_seg;

	__virtio32 max_write_zeroes_seg;

	/*

	 * Set if a VIRTIO_BLK_T_WRITE_ZEROES request may result in the

	 * deallocation of one or more of the sectors.