[openib-general] IB mcast question
Hal Rosenstock
halr at voltaire.com
Mon Aug 14 14:38:32 PDT 2006
This is not the main issue (the lack of replication is) but I don't think a subsequent join from the same port does any harm but ib_multicast shouldn't be doing this. It would matter in terms of the leave though.
-- Hal
________________________________
From: openib-general-bounces at openib.org on behalf of Roland Dreier
Sent: Mon 8/14/2006 5:24 PM
To: Steve Wise
Cc: openib-general
Subject: Re: [openib-general] IB mcast question
Steve> So is this replicating done in the mthca hca?
Yes, it should be. There may be a bug in the mthca kernel multicast
code for handling multiple QPs attached to the same group.
Steve> Since one app is getting the mcast packet, can I assume the
Steve> opensm code is doing the right thing switch/port wise?
Yep.
Steve> Should the SM get join requests for both applications that
Steve> join the group on the same host? Or only the first one?
No there should only be one join request for a given port.
- R.
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