From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: APM support for IPoIB Date: Tue, 2 Oct 2012 11:00:08 -0600 Message-ID: <20121002170008.GA23733@obsidianresearch.com> References: <506A17EA.8080400@oracle.com> <20121001235303.GH22342@obsidianresearch.com> <009101cda0be$6d8cb220$48a61660$@com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <009101cda0be$6d8cb220$48a61660$@com> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Paul Grun Cc: 'Bang Nguyen' , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, 'Richard Frank' List-Id: linux-rdma@vger.kernel.org On Tue, Oct 02, 2012 at 09:53:17AM -0700, Paul Grun wrote: > Jason - Like your idea for full APM support especially across > subnets, but wouldn't that require some sort capability that lives > above the subnet level and is able to query both SMs/SAs? Sounds > vaguely router-ish? Well, in terms of the current spec, PRs are fully specified enough that a sufficiently informed SA can return PRs for a non-requesting port on the same node. I've long advocated for an improved PR mechanism that would be more APM 'aware' and router compatible (Connected Path Query) There are a few good ways to get that sort of information into the SA.. 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