[ixp1200] IXF1002 network statistic registers

Hi, Does anyone know how to write program to access to the control registers and network statistic registers of IXF1002 in a intel ixp1200 evaluation board? I noticed there is a directory ixp1200\SA1_CoreLibs\GigaMac_GC82547EB in my installed IXP1200 SDK 2.0, and there should be some APIs there to deal with the IXF1002 registers' accessing. But after I read the source code, I still haven't found any real code to read or write IXF1002's registers. Thanks John