Re: Sun GEM card looses TX on x86 32bit PCI

[Aaron Sethman]

Just an FYI, this does resolve the problem on sparc as well.

Regards,

Aaron

On Thu, 14 Mar 2002, Aaron Sethman wrote:

> I am having the same problem on sparc.  I will try the patch myself and
> let you know if it helps.
>
> Regards,
>
> Aaron
>
> On Tue, 12 Mar 2002, David S. Miller wrote:
>
> >    From: Beezly <[e-mail]>
> >    Date: 11 Mar 2002 22:51:42 +0000
> >
> >    Ok, I've been fiddling around with the driver tonight and have managed
> >    to get a little further by forcing the driver to do a full reset of the
> >    chip when the RX buffer over flows. I achieved this by sticking a return
> >    1; at the top of gem_rxmac_reset().
> >
> >    I'm guessing this isn't an "optimal" reset for the situation but so far
> >    it's having /reasonable/ results (i.e. I don't have to bring the
> >    interface up and down every 30 seconds!).
> >  ...
> >    Hope this helps,
> >
> > I'll follow up on this and figure out why my RX reset code
> > isn't working after I finish up some 2.5.x work.
> >
> > But looking quickly I think I see what is wrong.  Please give
> > this a try (and remember to remove your hacks before testing
> > this :-):
> >
> > --- drivers/net/sungem.c.~1~	Mon Mar 11 04:24:13 2002
> > +++ drivers/net/sungem.c	Tue Mar 12 09:30:38 2002
> > @@ -357,6 +357,7 @@ static int gem_rxmac_reset(struct gem *g
> >
> >  		rxd->status_word = cpu_to_le64(RXDCTRL_FRESH(gp));
> >  	}
> > +	gp->rx_new = gp->rx_old = 0;
> >
> >  	/* Now we must reprogram the rest of RX unit. */
> >  	desc_dma = (u64) gp->gblock_dvma;
> > -
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>
>