From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH v2] RDMA/CMA: fix iWARP adapter TCP port space usage Date: Fri, 11 Jun 2010 18:04:31 -0600 Message-ID: <20100612000431.GC4630@obsidianresearch.com> References: <20100611124746.GA2292@CTUNG-MOBL1> <2EFBCAEF10980645BBCFB605689E08E904924CCE42@azsmsx506.amr.corp.intel.com> <4C12A6E8.5040400@opengridcomputing.com> <20100611224126.GA4630@obsidianresearch.com> <4C12C971.4000909@opengridcomputing.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4C12C971.4000909-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steve Wise Cc: Roland Dreier , "Tung, Chien Tin" , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "Waskiewicz Jr, Peter P" List-Id: linux-rdma@vger.kernel.org On Fri, Jun 11, 2010 at 06:40:33PM -0500, Steve Wise wrote: > No, everything does not work without this patch. Go read the thread > from 2007 (I posted the URL to it on this thread). I describe exactly > how an application like MPI will get incorrect behavior due to port > space collisions on iWARP HW. I guess I missed the fact that OFED included this patch, rather than relying on the other administratively configured schemes you originally outlined. I was opining that nobody was complaining about the administrative stuff.. but of course nobody complains, they don't have to do it :( A seperate IP for iWarp always seemed to me to be the way forward on this. And I do mean seperate, as in TCP packets for this IP are never sent into the net stack seperate :| 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