Subject: Re: Single file system (buf) read size
To: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
From: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
List: tech-kern
Date: 03/13/2001 10:32:03
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On Tue, Mar 13, 2001 at 10:24:52AM +0100, Ignatios Souvatzis wrote:
> On Mon, Mar 12, 2001 at 10:19:38PM -0800, Chuck Silvers wrote:
> > there's the MAXPHYS constant that you should bump up to the maximum i/o=
size
> > you want to use. I wouldn't be surprised if you ran into trouble thoug=
h,
> > since I imagine hardly anyone tests drivers with an increased MAXPHYS.
>=20
> It's worse.
>=20
> The amiga/dev/asiop driver (and its descendants) have a static area of
> dma regions allocated in the address space written by the driver and
> read by the downloaded script code... it's scaled as MAXPHYS / MMUpagesiz=
e.
Uh, not MAXPHYS, but 65536, of course.
Regards,
-is
--=20
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