I have a big hint on the problem.  Since it worked for someone and
not for me, I wondered what I was doing different.  So I plugged
into a 10Meg interface and all was well.  Thus the problem seems
to be with running the card at 100mhz.

Jason Thorpe <thorpej@nas.nasa.gov> writes:

> On Thu, 29 Oct 98 22:18:09 EST 
>  rvb+@sicily.odyssey.cs.cmu.edu wrote:
> 
>  > According to Intel's site the Pro 100B (PILA8465B) is being replaced 
>  > by the Pro 100+ (PILA8460).  The 100B I have has 82557 stamped on the 
>  > "big" chip, while the 100+ is pretty hard to read, but the specs say
>  > it is a 82558.  I think we maye have discussed these details before.
> 
> The 82558 is simply an 82557 + 82555 PHY in one package.  It's supported.
> 
>  > My question is what do I need to do to make the fxp0 driver work with
>  > the 100+.  fxp0 driver seems to identify the card, find the wire address
>  > and choose an irq, but I get nothing happens.  Put a 100B in the same
>  > slot and it works fine.
>  > 
>  > I didn't see many changes to if_fxp.c recently.  The kernel I'm running
>  > is from 10/10.  There was a change on 10/29 but that seems unrelated.
> 
> Is the PHY detected properly?  Can you email me dmesg output?

fxp0 at pci0 dev 15 function 0: Intel EtherExpress Pro 10+/100B Ethernet
fxp0: interrupting at irq 11
fxp0: Ethernet address 00:90:27:0d:d2:c6
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 0
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Is what I see with the card running at 10Mz.

ifconfig says:
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        media: Ethernet autoselect (10baseT)
        status: active
        inet ...

I'm pretty sure that at 100mhz the only difference is that it chose
100baseTX.

> Jason R. Thorpe                                       thorpej@nas.nasa.gov
> NASA Ames Research Center                            Home: +1 408 866 1912
> NAS: M/S 258-5                                       Work: +1 650 604 0935
> Moffett Field, CA 94035                             Pager: +1 650 940 5942