[openib-general] [PATCH] IB/core: fix SM LID/LID change with client reregister set

[Hal Rosenstock]

On Tue, 2006-08-15 at 11:06, Jack Morgenstein wrote:
> On Tuesday 15 August 2006 17:42, Hal Rosenstock wrote:
> >
> > Are these two events equivalent ? e.g. does LID change require
> > reregistration ? (That's a potential overhead as well).
> >
> 
> Before the change in mthca_mad.c (sm_snoop), the LID CHANGE event was 
> generated in all cases where a SET port-info MAD was received.
> 
> After the change, either LID_CHANGE  -- or -- CLIENT_REREGISTER is generated. 
> (i.e., CLIENT REREGISTER replaced LID_CHANGE in those cases where the 
> reregistration bit was set in the MAD).
> 
> This patch simply restores the previous behavior of the sa_query and cache 
> modules in responding to events.

Understood but doesn't it also has the effect of doing more than this
for certain cases of Set PortInfo ?

> No reregistration is required in these modules.

Currently but I think it is a possibility in the future.

-- Hal

> > What about deregistration of the old registrations when this occurs ?
> > Is that handled ?
> >
> There is no deregistration involvement.
> 
> - Jack