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From: Steve Wise <swise@opengridcomputing.com>
To: lustre-devel@lists.lustre.org
Subject: [Lustre-devel] lustre-1.8.8: rdma_listen() backlog 0 breaks iWARP
Date: Thu, 24 Jul 2014 10:13:50 -0500	[thread overview]
Message-ID: <002601cfa751$dfe01d30$9fa05790$@opengridcomputing.com> (raw)
In-Reply-To: <1828884A29C6694DAF28B7E6B8A823739935485C@ORSMSX110.amr.corp.intel.com>


> > I'm not sure why it was changed to 0 though.  It definitely breaks iwarp
> > support.  I'm not
> > yet sure what the semantics are for creating a listening cm_id with a
> > backlog of 0.  Was
> > the assumption that 0 means "let the system choose" or "max supported
> > backlog"?  The iwarp
> > CM interprets 0 to mean no connection requests allowed. :)
> 
> 0 should mean let the system choose.  Interpreting 0 as no connections allowed doesn't
> really make sense, since the app can get that by not calling listen at all.

Ok then we can fix this in the iwcm.  I'll post a patch to Linux-rdma soon. 

Thanks,

Steve.

      reply	other threads:[~2014-07-24 15:13 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-23 15:44 [Lustre-devel] lustre-1.8.8: rdma_listen() backlog 0 breaks iWARP Steve Wise
2014-07-23 18:52 ` Dilger, Andreas
2014-07-24 14:22   ` Steve Wise
2014-07-24 15:08     ` Hefty, Sean
2014-07-24 15:13       ` Steve Wise [this message]

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