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| author | Michael S. Tsirkin <mst@redhat.com> | 2015-03-13 04:29:11 +0300 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-03-13 08:25:43 +0300 |
| commit | a4994b810d52ccb26de922c8d231fe05d14610d4 (patch) | |
| tree | daf830c29bde78a5b98e99771bbb88d311e69818 /include/uapi/linux/virtio_scsi.h | |
| parent | 87e7bf1450c9f6bd0927f63ebc0fe2d12e8bc83d (diff) | |
| download | linux-a4994b810d52ccb26de922c8d231fe05d14610d4.tar.xz | |
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: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/uapi/linux/virtio_scsi.h')
| -rw-r--r-- | include/uapi/linux/virtio_scsi.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h index 42b9370771b0..cc18ef8825c0 100644 --- a/include/uapi/linux/virtio_scsi.h +++ b/include/uapi/linux/virtio_scsi.h @@ -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 { |