From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B53EC4363A for ; Tue, 27 Oct 2020 06:08:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F0C820874 for ; Tue, 27 Oct 2020 06:08:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603778909; bh=WP3q6woHndwr1etIplF7KIz1C0FwXTTk/4sAmpv1O30=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=iNg2pJMXgONK8I04jGZSRzXru/UtcoSjDHDiWsdvYg8AAudRNyLaVX58P5b5bP2kk bl6IZipuN7tf1cdOB+Zecmzw3RbJ2JgLmrOsCr99oSeejizoAlPfIz9Yl1EUH1kkvO bNUSiqC0knwuXbjoW4FGsv7crzydh3Qy3/GdG61E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2506253AbgJ0GI2 (ORCPT ); Tue, 27 Oct 2020 02:08:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:53364 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2506251AbgJ0GI2 (ORCPT ); Tue, 27 Oct 2020 02:08:28 -0400 Received: from localhost (unknown [213.57.247.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3760A207BB; Tue, 27 Oct 2020 06:08:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603778907; bh=WP3q6woHndwr1etIplF7KIz1C0FwXTTk/4sAmpv1O30=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fjTbBz6G5ue2iFFybKYFxFGw6fpEQQamv/3kluzAUqpRpiiae68YC+/GV3Pq61WzE 6pvFqHRqAm6ZNQpbeUc59J1QWWkxwYEIkkAHh8IdEdxDtBEV45pKibFKaYhkVTK0UI JpmaolwdnM7OQ8F3ZkB4xJpdwAp9eXjp9W9Ka0CI= Date: Tue, 27 Oct 2020 08:08:23 +0200 From: Leon Romanovsky To: Chuck Lever Cc: linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org Subject: Re: [PATCH 00/20] NFSD support for multiple RPC/RDMA chunks Message-ID: <20201027060823.GF4821@unreal> References: <160373843299.1886.12604782813896379719.stgit@klimt.1015granger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <160373843299.1886.12604782813896379719.stgit@klimt.1015granger.net> Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Mon, Oct 26, 2020 at 02:53:53PM -0400, Chuck Lever wrote: > This series implements support for multiple RPC/RDMA chunks per RPC > transaction. This is one of the few remaining generalities that the > Linux NFS/RDMA server implementation lacks. > > There is currently one known NFS/RDMA client implementation that can > send multiple chunks per RPC, and that is Solaris. Multiple chunks > are rare enough that the Linux NFS/RDMA implementation has been > successful without this support for many years. So why do we need it? Solaris is dead, and like you wrote Linux systems work without this feature just fine, what are the benefits? Who will use it? Thanks