[openib-general] [PATCH] rdma_cm: let SDP control the SDP version in the hello header

[Sean Hefty]

>Could the CMA handoff parsing/evaluation of the Hello/HelloAck
>exchange much the way it hands off private data to the ULP?

It's slightly different with SDP.  With other ULPs, the CMA inserts its own
header at the start of the private data, and then strips it off on the remote
side.

However, with SDP, the header was already defined.  The CMA updates the SDP
header with the address information, but this is in the middle of the SDP
header.  So, the CMA must be aware of the format and version of the SDP header.

The result is that the CMA is slightly aware of the SDP protocol, but the
benefit is that code duplication is minimized.

- Sean