Multiple ethernet cards
Sun Oct 18 09:25:33 1998

Hi tulip'ers,

> I'm trying to get both a 3Com (ISA) and LinkSys (PCI) card working.  
> Thanks to the previous responses, I upgraded to v0.89 of tulip.c
> and have the LinkSys card working.  Each card works independently 
> but the 3Com card is inactive with the LinkSys card inserted.
> Ethernet entries from "ifconfig -a":
> eth0      Link encap:Ethernet  HWaddr 00:A0:CC:24:33:86  
>           inet addr:  Bcast:  Mask:
>           Interrupt:10 Base address:0xe800 
> eth1      Link encap:Ethernet  HWaddr 00:A0:24:2F:1C:5D  
>           inet addr:  Bcast:  Mask:
>           Interrupt:10 Base address:0x300 

Well, I don't know sharing interrupt between ISA & PCI will be a good idea.
You will get lots of trouble, from hardware perspective (triggering method,
chipset recognition, interrupt acknowledge), from driver code of two 
different Ethernet cards!  Try to relocate either interrupt, so that they 
are different.  I don't have a LinkSys personally, but I've configured
lots of machine in my working place with tulip Ethernet card (DEC chip)
and 3c509 coexist, and run happily for months.

My 2 cents,

Stephen Siu Ming Wong     Internet:   [ O O ]
Dept of Computer Science        \_-_/
Chinese University of       _| |_
Hong Kong                    Pager: 7229-4680                 / \_/ \