I'm sorry for the lack of information. From my reading I understand that IPoIB is a viable option for both the Linux and Windows networking stacks. However the applications I would be developing would have their own ULPs that would not necessarily mesh well with IPoIB. For example my current Linux application uses rdma_cm to communicate to another Linux box and the Window's applications use Network Direct to communicate. So I guess the question is can rdma_cm talk to Network Direct? Or what are the "lower" level APIs to use for such a Linux and Windows connection?
*Edit* I also should mention that there is a desire to have the applications do RDMAs.