[openib-general] [RFC/PATCH v3] rdma/cma: add RDMA_PS_IPOIB port space

[Sean Hefty]

Or Gerlitz wrote:
> Add to the RDMA CM an IPoIB port space (RDMA_PS_IPOIB) whose semantics are similar
> to those of RDMA_PS_UDP where RDMA_PS_IPOIB IDs allow for inter operability with
> IPoIB on some traffic patterns.

I think we want to limit the ipoib port space to join/leave multicast groups. 
Would there be any reason to support listen/connect/accept (i.e. SIDR) operations?

The udp port space is also intended to support any rdma device, eventually. 
Ipoib should be restricted to IB devices only.

- Sean