From what you write I understand that you have connected one cable between the two port of our product. the BlackDiamond-X8 is not used now. Is that correct?
If this is so,
Did you install and load the network driver (fm10k) (make install, ifconfig up, and you see two interfaces?
Did you install and start the rdif?
I have attached the programmer guide, see in appendix-A with the step to get it working.
Let me know if still there is no link.