Messages in this thread |  | | | Date | Wed, 23 Jan 2002 19:25:23 -0600 (CST) | | From | Andy Carlson <> | | Subject | Re: via-rhine timeouts |
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I tried this, and the problem did not go away. I got about 300K/S versus the 7-8M/S I get with the linuxfet driver.
Andy Carlson |\ _,,,---,,_ naclos@swbell.net ZZZzz /,`.-'`' -. ;-;;,_ Cat Pics: http://andyc.dyndns.org/animal.html |,4- ) )-,_. ,\ ( `'-' St. Louis, Missouri '---''(_/--' `-'\_)
On Wed, 23 Jan 2002, Andrew Morton wrote:
> 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.. > > --- 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 32 bytes */ > np->tx_thresh = 0x20; > np->rx_thresh = 0x60; /* Written in via_rhine_set_rx_mode(). */ > > - >
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