On Tue, Jul 11, 2023 at 11:02:15AM +0200, Andreas Hindborg (Samsung) wrote: > > Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: > > > On Tue, Jul 11, 2023 at 08:23:40AM +0200, Andreas Hindborg (Samsung) wrote: > >> Yet most on-the-wire protocols for actual hardware does support this > >> some way or another. > > > > Supports what? Passthrough? No. > > Both SCSI and NVMe has command identifier ranges reserved for vendor > specific commands. I would assume that one use of these is to implement > passthrough channels to a device for testing out new interfaces. Just > guessing though. Vendor specific commands is an entirely different concept from Linux passthrough requests.
