NCR53C815 vs Tulip: sharing IRQ fails

Michael Meissner
Mon Mar 22 10:32:59 1999

On Mon, Mar 22, 1999 at 03:06:21AM -0800, Hardware Stuff wrote:
> I have a system that's not short on IRQs, but in which the BIOS
> insists on giving the DTC 3130B NCR53C815 and the D-Link DFE500-Tx
> 21040 the same IRQ.  The NCR53C815 reports obtaining a shared IRQ and
> functions fine, while it's impossible to ifconfig the Tulip.  It's an
> i386 2.0.36 kernel with the latest patches for the NCR.
> I'm be happy if I could force either card to a different IRQ, but
> nothing has worked yet.  Has anyone had this setup working?

I've been happily sharing a NETgear FA310TX card with a TekRam 390F and now an
original NCR53C810 scsi controller for quite some time on both my home system
(Pentium-II) and work system (dual Pentium Pro, which I just recently changed
the scsi card to my Adaptec 2940UW).  Note, I use the 2.2.x kernels (2.2.3
currently).  So rather than patching 2.0.36, you might want to rev up your
utilities and go to 2.2.x.

Michael Meissner, Cygnus Solutions
PO Box 98, Ayer Massachusetts, USA 01432-0098