On Tue, Feb 04, 2025 at 09:36:46PM -0500, Martin K. Petersen wrote: > > Christoph, > > >> Quite a few SCSI devices report 0xffff to indicate that the optimal > >> transfer length is the same as the maximum transfer length which for > >> low-byte commands is capped at 0xffff. That's where the odd value comes > >> from in some cases. > > > > Hmm, optimal == max is odd, > > What they mean to convey is that "device has no constraints". As opposed > to a value of 0 which means "not reported".
I'm pretty sure that confuses some users, given normally optimal == lba size mean not reported. Either way we really need to document these somewhere.
