From: Thomas Bogendoerfer <tsbogend@elvis.franken.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jun Sun <jsun@mvista.com>,
linux-mips@oss.sgi.com, Ralf Baechle <ralf@oss.sgi.com>,
marcelo@conectiva.com.br
Subject: Re: [2.4 PATCH] pcnet32.c - tx underflow error
Date: Thu, 11 Jul 2002 10:12:43 +0200 [thread overview]
Message-ID: <20020711081243.GA14912@elvis.franken.de> (raw)
In-Reply-To: <E17STUx-0008LR-00@the-village.bc.nu>
On Thu, Jul 11, 2002 at 03:16:03AM +0100, Alan Cox wrote:
> > 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.
I've seen this problem on a lot of PC hardware, too. The best fix would
be to enable full packet mode, when the driver sees too much TX underruns.
Thomas.
next prev parent reply other threads:[~2002-07-11 8:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-10 21:56 [2.4 PATCH] pcnet32.c - tx underflow error Jun Sun
2002-07-10 23:51 ` Alan Cox
2002-07-10 23:51 ` Alan Cox
2002-07-10 23:51 ` Jun Sun
2002-07-11 2:21 ` Alan Cox
2002-07-11 2:21 ` Alan Cox
2002-07-11 3:01 ` Jason Gunthorpe
2002-07-11 0:08 ` Jun Sun
2002-07-11 2:16 ` Alan Cox
2002-07-11 2:16 ` Alan Cox
2002-07-11 8:12 ` Thomas Bogendoerfer [this message]
2002-07-12 2:51 ` Marcelo Tosatti
2002-07-12 2:51 ` Marcelo Tosatti
2002-07-12 18:26 ` Jun Sun
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