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Commit a4994b81 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Rusty Russell
Browse files

uapi/virtio_scsi: allow overriding CDB/SENSE size 



QEMU wants to use virtio scsi structures with
a different VIRTIO_SCSI_CDB_SIZE/VIRTIO_SCSI_SENSE_SIZE,
let's add ifdefs to allow overriding them.

Keep the old defines under new names:
VIRTIO_SCSI_CDB_DEFAULT_SIZE/VIRTIO_SCSI_SENSE_DEFAULT_SIZE,
since that's what these values really are:
defaults for cdb/sense size fields.

Suggested-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 87e7bf14

include/uapi/linux/virtio_scsi.h

+10 −2
Original line number Diff line number Diff line
@@ -29,8 +29,16 @@ 


#include <linux/virtio_types.h>



#define VIRTIO_SCSI_CDB_SIZE   32

#define VIRTIO_SCSI_SENSE_SIZE 96

/* Default values of the CDB and sense data size configuration fields */

#define VIRTIO_SCSI_CDB_DEFAULT_SIZE   32

#define VIRTIO_SCSI_SENSE_DEFAULT_SIZE 96



#ifndef VIRTIO_SCSI_CDB_SIZE

#define VIRTIO_SCSI_CDB_SIZE VIRTIO_SCSI_CDB_DEFAULT_SIZE

#endif

#ifndef VIRTIO_SCSI_SENSE_SIZE

#define VIRTIO_SCSI_SENSE_SIZE VIRTIO_SCSI_SENSE_DEFAULT_SIZE

#endif



/* SCSI command request, followed by data-out */

struct virtio_scsi_cmd_req {