Re: [PATCH] IBM Lanstreamer bugfixes
David Weinehall (firstname.lastname@example.org)
Wed, 30 Jan 2002 20:58:39 +0100
On Wed, Jan 30, 2002 at 01:27:29PM -0600, Kent E Yoder wrote:
> I think the delays in the driver *were* just working around PCI posting
> effects. I tested by removing all the delays and instead putting
> something like:
> writew(val, addr);
> (void) read(addr);
> instead, to flush the PCI cache. Things seem to be happy.
> Is this the best way to make sure the PCI cache is flushed for writes that
> need to happen immediately? I don't see many other drivers doing it...
Wouldn't creating a flush_and_writew() or similar be an idea here?
// David Weinehall <email@example.com> /> Northern lights wander \\
// Maintainer of the v2.0 kernel // Dance across the winter sky //
\> http://www.acc.umu.se/~tao/ </ Full colour fire </
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