On Mon, 1 Sep 2014, David Gwynne wrote: > > Yes, that seems to be what happens. But if every adapter needs to support > > transfers of MAXBSIZE == MAXPHYS anyway, there would be no need for the > > adapter to be able to override the default minphys function with its own. > > And adapters that only support smaller transfers would need to have logic > > in their driver to be able to split the transfer into smaller chunks. > > > > I think it makes more sense to have that logic in one place to be used by > > all drivers. > > this has blown my mind. how do the stupid ata cf card things that only > support single sector IO work?
It seems _wdc_ata_bio_start in ata_wdc.c does the splitting in this case.
