:On Thu, Jun 03, 1999 at 07:30:20PM +0200, Wilko Bulte wrote:
:> 20 bits. But older cards can do no more than 64 kB.
:
:Indeed, 20 bits (=1 Mbyte) for the address, 16 bits for the transfer counter
:(offset).
:
:--
:Jos Backus _/ _/_/_/ "Reliability means never
MAXPHYS is ultimately a limitation on the size of the b_pages array in
the struct buf structure. The default is 128 KBytes. Device Drivers are
supposed to break up I/O's into manageable sections themselves.
Maybe when the buffer I/O / VFS subsystem is rewritten later this year
we can get rid of the artificial limitations.
-Matt
Matthew Dillon
<dil...@backplane.com>
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