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Re: [2.4 PATCH] pcnet32.c - tx underflow error

To: jsun@mvista.com (Jun Sun)
Subject: Re: [2.4 PATCH] pcnet32.c - tx underflow error
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Thu, 11 Jul 2002 03:16:03 +0100 (BST)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), linux-mips@oss.sgi.com, ralf@oss.sgi.com (Ralf Baechle), marcelo@conectiva.com.br
In-reply-to: <3D2CCC83.6090304@mvista.com> from "Jun Sun" at Jul 10, 2002 05:08:35 PM
Sender: owner-linux-mips@oss.sgi.com
> I even suspect this is the default setting on PCI cards on PC.  Can someone 
> verify?  If that is the case, that will explain why driver never sets this 
> bit.  Maybe we don't have any "real computers" after all. :-)

Most PC hardware can deliver that kind of DMA guarantee. UDMA100 doesn't
work very well otherwise.


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