Niagara 2250/2260 dual Gigabit passthrough NIC watchdog driver?

[Guy Helmer]

I'm looking at the Interface Masters Niagara 2250 dual gig passthrough 
NIC for a filtering system.  It has a watchdog timer that can bypass the 
interfaces if the software fails to update the timer.  Interface 
Masters' web site claims FreeBSD 4 support, but when asked they were 
only able to provide a Linux driver.

Has anyone done a FreeBSD driver for this card or patched if_em.c for it?

Thanks,
Guy Helmer

-- 
Guy Helmer, Ph.D., Principal System Architect, Palisade Systems, Inc.
ghelmer at palisadesys.com
http://www.palisadesys.com/~ghelmer