yes. we are using that adapter. there should be no vid/did tweaking. (some motherboards may need bios updates to correctly implement the interrupt swizzling spec.)
all pcie-based gigabit intel controllers should be supported by plan 9. by the way, we've found the pro/1000 pt dual to be more cost-effective. if you have too many ports to use 2 dual cards, it would probablly be more effective to use myricom cards with 10gbaseCX4 ports. interrupt coalescing isn't very effective on multiple ports. there's a nice 24gbe+2cx4 hp procurve switch for less than three grand. - erik