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

[Thomas Bogendoerfer <tsbogend@elvis.franken.de>]

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.