[ewg] OFED-1.5.1 failure over iWarp

[Sean Hefty]

We should work to get this 'correct' when merging upstream.

>Following the "spirit" of the current code, it is probably cma_acquire_dev()'s
>job to fill in the missing ibdev type information after matching the netdev to
>an ibdev.

This makes sense to me.

>P.S. - I really wish that we had a cleaner way to match an ibdev to a netdev
>without overloading the gid table entries.
>Basically, it should be the job of the entity that created the netdev to make
>this association, and stuff a pointer in the netdev.

Do you have a specific idea here?  So far, we've tried to keep the mapping the
responsibility of the rdma_cm module.  With rocee, we may need to re-architect
the solution and have the ib_device driver make this association.  Even if it's
unlikely, we need to make sure that we don't make the wrong match.