[openib-general] rdma_cm branch

[Sean Hefty]

>>Can you clarify what do you mean "(ABI) conflict with OFED releases"?
>>
>>Is an issue with someone wishing to work with OFED user space and IB 
>>code from upstream kernel?
> 
> Yes - there could be issues there.

To clarify the major issue: currently when a connection request is received, the 
connection data specified by the active side through the rdma_conn_param is NOT 
given to the user.  This includes the responder_resources and initiator_depth. 
There's no easy way to obtain this information.

The ideal fix for this is to include rdma_conn_param as part of the 
rdma_cm_event.  However, this breaks every userspace app that's been coded to 
OFED / SVN.  An alternative is to add another call to retrieve the data, but 
that's not a very clean alternative for new kernel submission.

- Sean