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virtio_blk: v1.0 support

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Based on patch by Cornelia Huck.

Note: for consistency, and to avoid sparse errors,
      convert all fields, even those no longer in use
      for virtio v1.0.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2014-10-07 16:39:49 +02:00
parent fdd819b215
commit 19c1c5a64c
2 changed files with 49 additions and 36 deletions
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15
include/uapi/linux/virtio_blk.h
View file

@ -28,6 +28,7 @@
#include <linux/types.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
#include <linux/virtio_types.h>
/* Feature bits */
#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */
@ -114,18 +115,18 @@ struct virtio_blk_config {
/* This is the first element of the read scatter-gather list. */
struct virtio_blk_outhdr {
/* VIRTIO_BLK_T* */
__u32 type;
__virtio32 type;
/* io priority. */
__u32 ioprio;
__virtio32 ioprio;
/* Sector (ie. 512 byte offset) */
__u64 sector;
__virtio64 sector;
};
struct virtio_scsi_inhdr {
__u32 errors;
__u32 data_len;
__u32 sense_len;
__u32 residual;
__virtio32 errors;
__virtio32 data_len;
__virtio32 sense_len;
__virtio32 residual;
};
/* And this is the final byte of the write scatter-gather list. */