From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH 1/4] sunrpc: flag transports as using IETF approved congestion control protocols Date: Thu, 23 Feb 2017 13:55:02 -0700 Message-ID: <20170223205502.GA29673@obsidianresearch.com> References: <20170223170337.10686-1-jlayton@redhat.com> <20170223170337.10686-2-jlayton@redhat.com> <2152dfdf-f847-2511-1600-6499b6ea9708@talpey.com> <1487880034.3448.8.camel@redhat.com> <65056db6-f30a-c44d-b01c-b549887c4895@talpey.com> <20170223201109.GC11882@fieldses.org> <20170223202609.GC26301@obsidianresearch.com> <18ef37c3-95db-9a2c-dbcb-f579672065d6@talpey.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <18ef37c3-95db-9a2c-dbcb-f579672065d6-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org> Sender: linux-nfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tom Talpey Cc: "J. Bruce Fields" , Jeff Layton , trond.myklebust-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org, schumaker.anna-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Chuck Lever , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org On Thu, Feb 23, 2017 at 03:33:53PM -0500, Tom Talpey wrote: > The key words are "IETF-approved". Mitigation and Interaction are > operational decisions, not protocol design. We are talking about this bit from RFC 3530 ? Where an NFS version 4 implementation supports operation over the IP network protocol, the supported transports between NFS and IP MUST be among the IETF-approved congestion control transport protocols, which include TCP and SCTP. This gives most of RDMA an out as it is not over the IP protocol. The only obvious troubled one is RoCEv2.. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html