[ofa-general] Re: [PATCH] ib/ipoib: Reduce comparison size in data path

[Hal Rosenstock]

On Thu, 2008-01-03 at 14:14 +0200, Eli Cohen wrote:
> On Thu, 2008-01-03 at 03:53 -0800, Hal Rosenstock wrote:
> 
> > OpenSM's subnet prefix is determined via a config file (or defaults if
> > not overridden there). There has been discussion about supporting
> > reconfiguration without OpenSM restart. (One can also envision a restart
> > scenario here where the subnet prefix is changed).
> Won't such a possible event require the SM to send an SM change event?

I don't think there is such an SM event. Isn't SM change some locally
(end node/port) fabricated event ? Does it rely on SM LID in PortInfo
being changed or something else ? If that is the case, then SM LID
wouldn't change.

The hammer that OpenSM currently uses in these sorts of scenarios is
client reregister but this is an optional feature and not all other SM's
use this AFAIK. Maybe for this case, they would need to.

> If it does then ipoib can handle this.
> 
> >  Also, OpenSM is not
> > the only SM out there and IMO ideally we would/should rely on only what
> > the IBA architecture requires and not on current implementation.
> Agree but again, wouldn't such a change in configuration require an SM
> change event?
> 
> 
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