Here is a paper on doing this from a 10G network card to an Nvidia card:
Is this possible with AMD cards? Firepro?
Please see http://devgurus.amd.com/thread/170019
Support to exchange data with the FirePro GPU needs to be supported by the device driver of the network card as well. Currently I am not aware of a network device that has implemented DirectGMA.As mentioned in the above thread it is possible to use DirectGMA to do peer to peer transfers between a FirePro GPU and a network device but the network device needs to have DirectGMA support implemented.