From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul Grun" Subject: RE: RDMAoE / lossless Ethernet (ewg: SC'09 BOF - Meeting notes) Date: Wed, 23 Dec 2009 16:09:04 -0800 Message-ID: <002d01ca842d$4f62cbf0$ee2863d0$@com> References: <2ED289D4E09FBD4D92D911E869B97FDD01AF10F2@mtlexch01.mtl.com> <4B31D048.5040001@voltaire.com> <001101ca8411$68244b80$386ce280$@com> <15ddcffd0912231417h6e47db36ledbdb2ad6cc66c0e@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <15ddcffd0912231417h6e47db36ledbdb2ad6cc66c0e-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> Content-Language: en-us Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: 'Or Gerlitz' Cc: 'Roland Dreier' , 'Or Gerlitz' , 'Liran Liss' , 'Yevgeny Petrilin' , 'Richard Frank' , 'Sean Hefty' , 'Linux RDMA list' List-Id: linux-rdma@vger.kernel.org Or - The emergence of standards-based lossless Ethernet (DCB) was the precipitating factor that allowed us for the first time to talk about running the IB message transport on what had formerly been a lossy network. That said, there is a distinction to be made between 'works better' and 'is required in order to work'. Again, I don't think there is an argument to be made for REQUIRING the use of DCB as a prerequisite to RoCEE. Make sense? -Paul -----Original Message----- From: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org [mailto:linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org] On Behalf Of Or Gerlitz Sent: Wednesday, December 23, 2009 2:18 PM To: Paul Grun Cc: Roland Dreier; Or Gerlitz; Liran Liss; Yevgeny Petrilin; Richard Frank; Sean Hefty; Linux RDMA list Subject: Re: RDMAoE / lossless Ethernet (ewg: SC'09 BOF - Meeting notes) Paul Grun wrote: > there doesn't appear to be an argument in favor of requiring DCB with RoCEE Interesting, the ofa server is down now, so I don't have access to ofa IBoE materials, from my memory I recall that in ALL of them you have made the IBoE/CEE bundling very clear & evident, e.g this IBTA presentation made to T11 @ http://www.t11.org/ftp/t11/pub/fc/study/09-543v0.pdf 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 -- 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