3c980, Packet Engines 2200, and 100baseTX

[Gary Jackson]

I'm having some trouble getting 3c980 cards to talk 100baseTX full
duplex to a Packet Engines PowerRail 2200.  I'm having no trouble
getting a 3c905B to autonegotiate 100baseTX full duplex to the same
switch (on the same ports), but the 3c980 cards will only come up as
10baseT half duplex.  I've tried forcing things with ifconfig and on
the switch itself, but forcing it causes the link to go down, and
ifconfig fails with:

SIOCSIFMAP: Operation not supported

I've poked around with the vortex-diag utility, but I want to check
with others before I go and break a card by writing erroneous values
to the EEPROM.

Any help rendered is greatly appreciated.

-- 
					Gary Jackson
					bargle@umiacs.umd.edu