In article <8F390E0B-2B42-44A2-89CF-7185215E1D80@shagadelic.org>
thorpej@shagadelic.org wrote:

> Note that asc_minphys() is only consulted for physio.  You also need  
> to adjust MAXBSIZE in order for it to affect e.g. file system I/O  
> (this is what the sun3 port has to do).

Hmm, is there no way to set MAXBSIZE per device basis?
Or, could anyone try the new asc driver with 64K MAXPHYS
on PICA or ImageRISCStation? ;-)

I think NCR53C94 (actually it's FAS216?) with MI ncr53c9x(4) can
handle 64K xfer even with 16bit TC regs as other ports do and
jazzio DMA has no 64K limit.
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Izumi Tsutsui