[openib-general] RDMA connection and address translation API

[James Lentini]

On Wed, 24 Aug 2005, Caitlin Bestler wrote:

> On 8/24/05, Fab Tillier <ftillier at silverstorm.com> wrote:
> > 
> > I think if all ULPs provide their source and destination IP in the 
> > private data, you can eliminate the reverse lookup altogether.  A 
> > simple forward lookup is all that's needed to validate that the 
> > source GID in the REQ matches the reported source IP in the 
> > private data.  The forward lookup could be done via ATS or via 
> > ARP, but the CM doesn't need to care which method is used.
> 
> That is not an option.
> 
> The applications are expecting source/destination network addresses 
> that come from a network layer, not from the peer application. IP 
> has no problem meeting this requirement. This is an IB problem that 
> needs to be solved within the scope of IB without changing any ULPs.

I agree with Caitlin. The eventual solution cannot force protocol 
modifications in ULPs.