Re: Quick aic7xxx bug hunt...

From: Justin T. Gibbs (
Date: Mon Sep 23 2002 - 17:44:58 EST

> Great, I stand corrected. Looks like 2.5 code is ancient then?

Yes. I didn't do the original port and am now just finishing up my
port to 2.5.X.

> comments on the 2.4 code:
> * the 1000us delay in ahc_reset needs to be turned into a sleep, instead
> all paths to that function [AFAICS] can sleep. likewise for the huge
> delay in ahc_acquire_seeprom.

For all of these delays, I'd be more than happy to make them all into
sleeps if I can tell, from inside ahc_delay() if I'm in a context where
it is safe to sleep. On the other platforms that this core code runs on
I'm usually not in a context where it is safe to sleep, so I don't want
to switch to using a different driver primitive.

> * PCI posting? (aic7xxx_core.c, line 1322, the last statement in the
> function...)
> ahc_outb(ahc, CLRINT, CLRSCSIINT);

I don't care when the write occurs only that it will occur eventually.
The buffer will get flushed eventually so there is no need to call

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