[openib-general] SDP connection context

[Sean Hefty]

While updating the SDP code to use a per device cm_id, I noticed that it sets 
the cm_id->context to a hash table entry value, rather than using a pointer 
directly to the connection object.  Is this necessary?

Also, as part of the changes I modified the CM event handling code to be event 
rather than state driven.  I still need to test my changes, but hope to have a 
patch available later tomorrow.

- Sean