Honored Contributor
Honored ContributorI think you'll find some answers in this document: http://www.altera.com/literature/an/an440.pdf
There is a chapter called "Using Faster Packet Memory" starting on the bottom of page 9 that explains how to change the functions used by the NicheStack to allocate memory for the packet data. You don't need to change the driver itself, just some macros in ipport.h. Be careful though, as (at least in the old IDE) Eclipse sometimes re-generates ipport.h on top of your modified file, so keep a backup somewhere, just in case. The example project they talk about can be downloaded here: http://www.altera.com/support/examples/download/ethernet_accel_design.zip
