[tulip] problem with new Linksys NC100 card

[Donald Becker]

On Mon, 19 Jun 2000, Steve Beaty wrote:

> > It's an ADMtek "Centaur" chip in PCI mode, similar to the (also new) ADMtek
> > Comet.
> 
> 	cool, thanks...  sorry for all my ignorance on this.  when i insmod
> the tulip modules, i get no complaints.  weird thing: when i do 'ifconfig
> -a' i get:
> 
> -----
> eth1      Link encap:Ethernet  HWaddr 00:20:78:02:2D:E5  
>           BROADCAST MULTICAST  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100 
>           Interrupt:9 Base address:0xd000
> however, i was expecting a base address of 0xe800:

The 'ifconfig' program is reporting the dev->base_addr value, a number that
was not intended to have public meaning.  What you are seeing is the
CPU's idea of how to access the PCI address.  This is usually a 1-to-1
mapping on the x86.

> 00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev
> 02) (prog-if 00 [Normal decode])
> 	Flags: bus master, 66Mhz, medium devsel, latency 64
> 	Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
> 	I/O behind bridge: 0000d000-0000dfff


Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Annapolis MD 21403