From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hal Rosenstock Subject: Re: [PATCH] infiniband-diags: add rdma-ndd daemon Date: Tue, 11 Nov 2014 10:11:04 -0500 Message-ID: <54622708.50405@dev.mellanox.co.il> References: <1414713270-12710-1-git-send-email-ira.weiny@intel.com> <1414713270-12710-2-git-send-email-ira.weiny@intel.com> <20141108004029.GB12120@obsidianresearch.com> <2807E5FD2F6FDA4886F6618EAC48510E0CBA8FCD@CRSMSX101.amr.corp.intel.com> <20141110051155.GD31256@obsidianresearch.com> <2807E5FD2F6FDA4886F6618EAC48510E0CBB39E8@CRSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <2807E5FD2F6FDA4886F6618EAC48510E0CBB39E8-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Weiny, Ira" Cc: Jason Gunthorpe , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org" List-Id: linux-rdma@vger.kernel.org On 11/10/2014 1:32 PM, Weiny, Ira wrote: > I think changing the default is a worthwhile change. In addition, alternate admin policies are aided by the > general use of the %h specifier. > > 1) SM's which periodically scan the Node Description always get up to date hostname info. > 2) Up to date hostname info is provided even if a user space daemons fails. > Note: OpenSM has an update node description feature for this condition. > 3) Low level diag tools always get up to date hostname info There is a node description local changes trap which should cause an SM to reread the updated NodeDescription. This is assuming the "SMA" is compliant and issues such trap when ND changes and this occurs after LinkUp. ALso, there is a new optional (SMA) feature (@ 1.3) to set the NodeDescription. Not sure if this helps for this. > Do you believe that " " is an unreasonable default? > > Roland, Hal, do you have any input? I was concerned with having the format be self identifying so that it can be easily distinguishable from other known formats being used in the field. As you wrote, given that RedHat is already using this format, we are already "living" with this. -- Hal -- 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