"Michael S. Tsirkin" <mst@xxxxxxxxxx> writes:
> On Wed, Mar 11, 2015 at 02:19:03PM +0100, Michael S. Tsirkin wrote:
>> 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@xxxxxxxxxx>
>> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
>> ---
>
> Rusty, pls note, if possible I'd like this one
> merged for 4.0 because it's important for QEMU
> (which now imports linux headers).
OK, applied.
Thanks,
Rusty.
>
>
>> include/uapi/linux/virtio_scsi.h | 12 ++++++++++--
>> 1 file changed, 10 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h
>> index 42b9370..cc18ef8 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 {
>> --
>> MST
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