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Date: Mon, 15 Sep 1997 09:38:38 -0700 (PDT)
From: Jim Shankland <jas@flyingfox.com>
Message-Id: <199709151638.JAA12987@biggusdiskus.flyingfox.com>
To: jlixfeld@idirect.com
Subject: Re: DLINK 21140 Card
Cc: freebsd-hardware@freebsd.org
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>From jlixfeld@idirect.com Mon Sep 15 06:04:06 1997
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Date: Mon, 15 Sep 1997 09:07:35 -0400 (EDT)
From: Jason Lixfeld <jlixfeld@idirect.com>
To: Jim Shankland <jas@flyingfox.com>
cc: freebsd-hardware@freebsd.org
Subject: Re: DLINK 21140 Card
In-Reply-To: <199709150503.WAA05355@biggusdiskus.flyingfox.com>
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Jason Lixfeld <jlixfeld@idirect.com> writes:

> I'm not sure if it will work or not, but I'm going to change it
> to match TULIP_RXDESCS.  That is set to 48.  I'm not sure if it
> will let me, or if it will even run.  If you think not, let me
> know.  If I should change it to 32, should I not change RX to
> 32 from 48 just to keep things symmetrical?!
> 
> On Sun, 14 Sep 1997, Jim Shankland wrote:
> 
> > Try reducing the value of TULIP_TXDESCS from 128 to 32, recompile the
> > driver, and see if that helps; please report back either way.
> > 
> > Jim Shankland
> > Flying Fox Computer Systems, Inc.

The important thing for the purpose of this experiment is to reduce
the size of the tulip_softc structure to < 4 KB.  The number of TXDESCS
and RXDESCS need not be the same.

When the size of the tulip_softc structure is > 4 KB, it is possible to
see failures quite similar to what you are seeing.  On the other hand,
your problem might be entirely unrelated.

Jim Shankland
Flying Fox Computer Systems, Inc.