From: Chuck Lever Subject: Re: Merge plans for RPC/RDMA? (Was: Re: [PATCH 000 of 14] knfsd: Preparation for IPv6 support in NFS server.) Date: Fri, 13 Apr 2007 21:07:34 -0400 Message-ID: <46202956.3080305@oracle.com> References: <170fa0d20704131347u4a28b5d1h1959227980449fbf@mail.gmail.com> <46200822.5060800@oracle.com> <170fa0d20704131704y13151149n817cd698e22781c8@mail.gmail.com> Reply-To: chuck.lever@oracle.com Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------020708090603060108030508" Cc: NeilBrown , Andrew Morton , Roland Dreier , nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org To: Mike Snitzer Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1HcWkc-0004tk-OX for nfs@lists.sourceforge.net; Fri, 13 Apr 2007 18:08:26 -0700 Received: from rgminet01.oracle.com ([148.87.113.118]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HcWkd-000391-VP for nfs@lists.sourceforge.net; Fri, 13 Apr 2007 18:08:29 -0700 In-Reply-To: <170fa0d20704131704y13151149n817cd698e22781c8@mail.gmail.com> List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net This is a multi-part message in MIME format. --------------020708090603060108030508 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mike Snitzer wrote: > On 4/13/07, Chuck Lever wrote: >> Mike Snitzer wrote: >> > On 2/2/07, Chuck Lever wrote: >> >> Roland Dreier wrote: >> >> > > They are mostly from Chuck Level and make preparating for IPv6 >> >> support >> >> > > in the NFS server. >> >> > > They are *not* for 2.6.20, but should be ok for .21. >> >> > >> >> > Out of curiousity, does this patch series reduce the delta >> between the >> >> > NFS/RDMA tree and mainline Linux? In other words does this bring >> >> > NFS/RDMA closer to merging? >> >> >> >> Hi Roland- >> >> >> >> The client side support for an RPC/RDMA module is almost completely >> >> integrated into mainline. There is still a minimal set of patches >> >> required to support alternate transports in loadable kernel modules >> >> which Trond has indicated he will integrate when the RPC/RDMA >> transport >> >> is ready to be integrated. >> > >> > Hi Chuck, >> > >> > I must be missing something because I don't see _any_ trace of the >> > core RPC over RDMA support (xprtrdma et al), your RPC Transport >> > Switch, or any of the other supporting changes in mainline. Could >> > you, or others, please clarify the plan for merging RPC/RDMA? >> >> The RPC transport switch patches are almost fully integrated into >> mainline. The xprtrdma piece is what is not there yet. > > OK, has the xprtrdma piece been reviewed by the community? What, if > anything, is preventing the code from being included in -mm for wider > testing? Some of the main NFS client developers (Trond, the CITI-UM developers, myself) have reviewed previous versions of this code, and have recommended a number of changes. I haven't heard anything recently from the NetApp engineers working on this. We are waiting for them to publish again, but I think they are waiting for the last of the transport switch patches to trickle into mainline (which should be ready with the release of 2.6.21). I know they have been working with a handful of test sites and have achieved good performance results. > Has xprtrdma inclusion/progress been discussed on some other mailing > list? Not yet, but the place that is likely to occur is nfs@lists.sourceforge.net. --------------020708090603060108030508 Content-Type: text/x-vcard; charset=utf-8; name="chuck.lever.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="chuck.lever.vcf" begin:vcard fn:Chuck Lever n:Lever;Chuck org:Oracle Corporation;Corporate Architecture: Linux Projects Group adr:;;1015 Granger Avenue;Ann Arbor;MI;48104;USA email;internet:chuck dot lever at nospam oracle dot com title:Principal Member of Staff tel;work:+1 248 614 5091 x-mozilla-html:FALSE version:2.1 end:vcard --------------020708090603060108030508 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ------------------------------------------------------------------------- Take Surveys. Earn Cash. 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