[ofa-general] [PATCH 7/8 V3] core: Add XRC receive-only qp support

[Tang, Changqing]

>
> In addition, the patch implements the foundation for
> distributing XRC-receive-only QP events to userspace
> processes registered with that QP.

If r1 is on node1, r2 and r3 are on node2, r1 and r2 have the
XRC conection established, r1 knows SRQ number from both r2 and
r3, but r3 does not register the recv QP created by r2, can r3
still receive message from r1 ?

--CQ