[ofw] port RDS to OFW - request for input...

[Tzachi Dar]

Does the notation: "remote IP -> local IP, remote GID" means, I want to
connect to the remote IP x.x.x.x what is it's gid and what is the local
interface?

I guess that if it is we can add this functionality to ipoib. The way to
do it is simple:
Send an arp packet to all interfaces and wait for response.

In the arp response you will find the GID and the interface that the
response returned is the looked up interface.

Sine we need to also implement time outs and retransmissions, this will
probably take a week to implement.

Is this better than relaying on a user mode service to get that
information? Hard to tell.

Thanks
Tzachi

> -----Original Message-----
> From: ofw-bounces at lists.openfabrics.org 
> [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Sean Hefty
> Sent: Thursday, July 23, 2009 8:24 PM
> To: Smith, Stan; Richard Frank; ofw at lists.openfabrics.org
> Subject: RE: [ofw] port RDS to OFW - request for input...
> 
> >How is it that a kernel interface to IBAT would not solve 
> the address 
> >resolution problem?
> 
> IBAT looks like it can do:
> 
> local IP <-> local port
> remote MAC <-> remote GID
> local port, remote MAC -> path record
> 
> We need to get to:
> 
> remote IP -> local IP, remote GID
> 
> It's not clear to me looking at ib_at_ioctl.h that it can do 
> this, but maybe the interface can be extended to provide this 
> functionality if it doesn't.
> 
> - Sean
> 
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