[tulip] I can't make multiple tulips work properly.

[Donald Becker]

On Mon, 15 Jan 2001, root wrote:

> I am using the 0.92t tulip driver loaded as a kernel module.  I have
> tried this experiment with kernel revs 2.2.14 and 2.2.18 with similar
> results.
> 
> 1) Install one Linksys card (tulip-diag reports it as a Digital DC21041
> Tulip).  Works great.  Call this eth0.
> 
> 2) Install 2nd Linksys card (tulip-diag reports this as an ADMtek AL985
> Centaur-P but I call it a Linksys LNE100TX v4.1).  This one is eth1.
> 
> 3) 2nd Linksys card eth1 works great...but eth0 stopped working.  Here
> is an excerpt from /var/log/messages:
> 
> Jan 15 18:06:50 firewall kernel: eth0: 21041 media switched to 10baseT.
> Jan 15 18:06:52 firewall kernel: eth0: 21041 transmit timed out, status
> fc678057

Hmmm, looks like a simple IRQ problem.  The chip is raising an
interrupt, but it isn't getting through the system.

Check /proc/interrupts to confirm.

> I can't fathom what I might have done wrong.  Any help or suggestions
> would be greatly appreciated.

Adding another card moved the interrupt assignments around.

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
Annapolis MD 21403			410-990-9993