From mboxrd@z Thu Jan 1 00:00:00 1970 From: Or Gerlitz Subject: Re: RDMAoE verbs questions Date: Wed, 25 Nov 2009 09:25:32 +0200 Message-ID: <4B0CDBEC.1030203@voltaire.com> References: <209ECE49-3AB9-4E62-B825-54E474321FA6@cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <209ECE49-3AB9-4E62-B825-54E474321FA6-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jeff Squyres , Liran Liss Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org Jeff Squyres wrote: > I was reviewing Mellanox's Open MPI patches for RDMAoE support Hi Jeff, Can you send us point to the patch series (mail thread or some repository where they sit)? > 1. It looks like there is a new field on the ibv_port_attr struct: > transport. Is it expected that all device drivers will start filling > in this value, or is it done in the OF core code somewhere? Please note that this field isn't present in the distro provided IB stack and hence it is highly recommended to avoid referring it in your code, as least some of us (...) are for decoupling ompi from ofed, so lets not put sticks in the wheels of that process. > the Open MPI RDMAOE patch implies that host loopback is not supported > in RDMAOE mode (but it is in IB mode). To be clear, the OMPI code had > to do something different for real IB vs. RDMAOE in at least 1 or 2 places Liran, where this limitation comes from? isn't the HCA supporting bridging (loopback connections) for RDMAoE? if this is the case maybe you should add a device capability to mark that. Or. -- 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