[RFC] Can DM pass SCSI command to path now?

[Changwei Ge <gechangwei@xxxxxxx>]

Hi list,

Recently, I found that block request can't take SCSI CDB any more.

So, can we still pass SCSI command to DM device which will clone the 
request and transfer it real path?

Otherwise, we query current path of DM each time before issuing a SCSI 
command?

Thanks,

Changwei