From: Olaf Kirch Subject: Re: cel's patches under development Date: Wed, 11 Apr 2007 14:02:49 +0200 Message-ID: <200704111402.50435.olaf.kirch@oracle.com> References: <460852BB.4080503@oracle.com> <200704110841.21291.olaf.kirch@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: nfs@lists.sourceforge.net, Trond Myklebust To: "Talpey, Thomas" Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1HbbY9-0003Kq-Ai for nfs@lists.sourceforge.net; Wed, 11 Apr 2007 05:03:45 -0700 Received: from agminet01.oracle.com ([141.146.126.228]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1HbbYA-0002bH-Hb for nfs@lists.sourceforge.net; Wed, 11 Apr 2007 05:03:47 -0700 In-Reply-To: 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 On Wednesday 11 April 2007 13:39, Talpey, Thomas wrote: > FWIW, I'm still looking at this from the RDMA perspective. I like the > abstraction of the data representation, but I don't like the protocol > specific switch statements that are in the data movement. These Right now, the proposed rpc_data thing has two function pointers, so no switch needed. > are cumbersome and don't lend themselves to dynamic loading. Also, > RDMA isn't a new protocol family, so it doesn't lend itself to an > IPv4/IPv6 and UDP/TCP kind of switch. How is it integrated on the client side? Wouldn't this be another transport in terms of Chuck's transport switch? If so, it would just provide a function for creating an RDMA specific rpc_data object that does the right thing. > The RDMA code turns out to not need this, because the xdr iov's > have a clear encoding for pagelists (head->pages[]->tail). But that means yet another non-obvious user of xdr_buf that makes it even harder to rewrite that whole code :-) Wouldn't it be better to make it explicit "here is a bunch of pages that I want you to put the bulk data into"? Olaf -- Olaf Kirch | --- o --- Nous sommes du soleil we love when we play okir@lst.de | / | \ sol.dhoop.naytheet.ah kin.ir.samse.qurax ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs