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SubjectRe: via-rhine timeouts
> Urban Widmark wrote:                                                
> >
> > writeb(readb(ioaddr + TxConfig) | 0x80, ioaddr + TxConfig);
> > np->tx_thresh = 0x20;
> > (linuxfet.c)
> >
> > writeb(0x20, ioaddr + TxConfig);
> > np->tx_thresh = 0x20;
> > (via-rhine.c)
> >
> > Note how the linuxfet driver sets a higher value but does not make
the
> > tx_thresh follow, so if it later gets a "IntrTxUnderrun" it will
lower the
> > threshold. But the chosen value is probably large enough.
> >
> > Those of you with this problem could try changing the 0x80 to 0x20
in the
> > linuxfet.c driver and see if the problem returns (or the other way
around
> > in the via-rhine.c driver).
> >
>
> That would certainly explain why people are seeing success
> with linuxfet.
>
> Here's the test patch which you describe. It would be
> useful if people could try it..

Forgive me being stupid, but shouldn't the comment behind follow
somehow?
I may be dead wrong, but you're increasing the initial treshold here,
or not?
Please ignore me if I am way off.

Regards,
Stephan


--- linux-2.4.18-pre6/drivers/net/via-rhine.c Tue Jan 22 12:38:30 2002
+++ linux-akpm/drivers/net/via-rhine.c Wed Jan 23 12:42:18 2002
@@ -965,7 +965,7 @@ static void init_registers(struct net_de
/* Initialize other registers. */
writew(0x0006, ioaddr + PCIBusConfig); /* Tune configuration??? */
/* Configure the FIFO thresholds. */
- writeb(0x20, ioaddr + TxConfig); /* Initial threshold 32 bytes */
+ writeb(0x80, ioaddr + TxConfig); /* Initial threshold 128 bytes */
np->tx_thresh = 0x20;
np->rx_thresh = 0x60; /* Written in via_rhine_set_rx_mode(). */

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