[openib-general] RDMA connection and address translation API

[Guy German]

>What do you think about this flow ?
>1. resolve device and port from ip address - synchronous operation
>   (like at.c resolve_ip)
>2. rdma_create_qp (device+port) - modifies qp to init with default pkey index
>3. ib_post_recvs(...);
>4. cma_connect - asynchronous at, modify qp with correct pkey index, cm_connect

>>It looks like this would work.  If a client wanted to create multiple
>>connections to the same remote service (for example, to separate control and
>>data), then it seems more efficient to move the asynchronous at outside of the
>>connect call.
>>- Sean

Thats a good point. What I had in mind was mainly simplicity for the
consumer - save him dealing with another upcall. 

Maybe caching in at module would make things better, but I agree 
that for multiple connections to the same remote service, the
asynchronous at aproach, seems more appropriate.

So ...
Does everyone else thinks that we should change the API of a cm 
abstraction to asynchronous at before connection ? 
(This should concern mostly the iWAPR guys - Caitlin,Tom etc..)

Thanks,
Guy