From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: RDMAoE verbs questions Date: Tue, 24 Nov 2009 21:52:44 -0700 Message-ID: <20091125045244.GJ1966@obsidianresearch.com> References: <209ECE49-3AB9-4E62-B825-54E474321FA6@cisco.com> <20091125001136.GP6188@obsidianresearch.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jeff Squyres Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org On Tue, Nov 24, 2009 at 09:12:53PM -0500, Jeff Squyres wrote: > On Nov 24, 2009, at 7:11 PM, Jason Gunthorpe wrote: > > >Is the same true for openmpi? If you try to run it as is on a RDMAOE > >interface will it work? If not I think that alone should kill this > >idea.. > > > OMPI uses RDMACM (among others), so I'm not sure I follow what you're > asking me...? I think I'm asking you about the non RDMACM stuff in openmpi, ibcm, xoob, etc. I can't tell at glance if any of them will be safe to run on RDMAoE as-is.. At least it looks like there are some basic problems, like oob doesn't exchange a GID, or setup the AH to use a GRH. Basically, if setting transport_type == IB for RDMAoE breaks existing stuff then it probably isn't a good strategy. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html