Ethernet: Where to Start?

Thanks for referring me. I'm trying to do what's essentially done in the DE2_NET demo for DE2 boards on the DE2-115, just sending lots of data very fast over the Ethernet port. I originally tried porting over the code, but found that hte DE2 uses a DM9000A for Ethernet whereas the DE2-115 uses a Marvell 88E1111, which I thought wouldn't be that hard to change, but the Web Server demos are a much higher level of abstraction from the base hardware so as to be almost useless to me. Do you know how I can access the Marvell 88E1111 directly in Nios II and send data over Ethernet that way?