diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2015-03-11 14:19:03 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-03-11 18:24:29 +0100 |
| commit | 2106ba30105969262a7810417a57524d9a225b91 (patch) | |
| tree | 044e69f4438dd48eb912212677df09d09f7a0cc3 /include | |
| parent | e7cc8ba22ece189a44fa08671426cbc4377e2056 (diff) | |
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>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/standard-headers/linux/virtio_scsi.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/standard-headers/linux/virtio_scsi.h b/include/standard-headers/linux/virtio_scsi.h index 78ba9d3635..ab66166b6a 100644 --- a/include/standard-headers/linux/virtio_scsi.h +++ b/include/standard-headers/linux/virtio_scsi.h @@ -29,8 +29,16 @@ #include "standard-headers/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 { |