[openib-general] APM support in openib stack

[Tang, Changqing]

> > > > There are other possibilities here too using inband 
> (IB) exchanges.
> > > > libibsa is not that far away either. What is your time frame ?
> > 
> > > Is it possible to have it in OFED 1.2 ?
> > 
> > I don't see any much advantge for you with libibsa over 
> hard coding a 
> > path, ie use dynamic GIDs/LIDs and static or hacked setting for the 
> > other path record fields.
> 
> Other than perhaps not needing another network to transfer 
> these parameters.

This is the most usefull function!


> > 
> > Please note that to have iWARP support you **must** use the 
> rdmacm to 
> > establish the RDMA connection.

We understand. Let's ignore iWARP in this discussion, because the iWARP
performance is far behind.


--CQ



> > 
> > This is b/c unlike IB, iWARP connection can't be hard wire manually.
> 
> currently. There was a thread on perhaps changing this but it 
> did seem to terminate without conclusion.
> 
> -- Hal
> 
> > First a TCP connection is established and then this connection is 
> > moved to RDMA. Since you cann't hard wire a TCP connection you must 
> > use the IWARP CM etc for that. So bottom line, using the 
> RDMA CM would 
> > give you IB and iWARP support and you can't support iWARP without 
> > it...
> > 
> > Or.
> 
>