[tulip] Cogent EM400 interrupt problem

[Eric Jorgensen]

Marco Flohrer wrote:
> 
> It seems that i actually can only use the first port of my multiport board.
> It is an Cogent EM400 (4 * 100MBit-only) on a ASUS P5A-B motherboard
> (Award BIOS). The BIOS gives every port another interrupt but tulip.c
> detects for all ports the same interrupt.
> The fitst port have in booth cases the same irq, so it runs.
> The following schows outputs from 'dmesg', 'cat /proc/pci',
> 'cat /proc/interrupts', 'cat /proc/ioports', tulipdiag an the result of a
> 'ping' to the other station connected via crossover cable on the second
> port.
> 
> PS: i use kernel version 2.2.14 and it's included tulip.c
 (SNIP!)
> PING 10.66.1.4 (10.66.1.4): 56 data bytes
> ping: sendto: Operation not permitted
> ping: wrote 10.66.1.4 64 chars, ret=-1


	I have a Cogent 10mbps board that works in some systems and not in
others - it's an issue of PCI bios. There's a page about it somewhere
off the tulip page. 

	With the 10mbps board, what I see in broken systems is that all link
lights go on when the driver is loaded, and then go off when i plug in a
cable, and the error is i believe "network unreachable". Doesn't work in
a FIC PA-2006 but does work in an ABIT BP6, which i believe are both
Award bios, the ABIT is just a lot newer and has an Intel BX chipset
where the FIC has an older VIA chipset. *shrug*. 

	FWIW, "operation not permitted" is the error I see when i try to do
something that an ipchains rule DENY's. 

 - Eric