From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 9A44EA0096 for ; Mon, 8 Apr 2019 11:04:31 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 53A962C24; Mon, 8 Apr 2019 11:04:30 +0200 (CEST) Received: from relay0167.mxlogin.com (relay0167.mxlogin.com [199.181.239.167]) by dpdk.org (Postfix) with ESMTP id CCB822BD8; Mon, 8 Apr 2019 11:04:28 +0200 (CEST) Received: from filter001.mxrelay.co (unknown [116.203.155.46]) by relay0167.mxlogin.com (Postfix) with ESMTP id D1032CC50320; Mon, 8 Apr 2019 04:04:27 -0500 (CDT) Received: from localhost (unknown [23.92.70.113]) by filter001.mxrelay.co (Postfix) with ESMTPS id 11AAE100A7D; Mon, 8 Apr 2019 09:04:26 +0000 (UTC) Received: from jfdmzpr05-ext.jf.intel.com ([134.134.139.74]) by localhost with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.89) (envelope-from ) id 1hDQDG-0008Nm-08; Mon, 08 Apr 2019 05:05:10 -0400 To: Thomas Monjalon , "Burakov, Anatoly" Cc: techboard@dpdk.org, Bruce Richardson , dev@dpdk.org, Kevin Traynor References: <455a61b4-891d-eaaf-d784-2be884bcacbd@intel.com> <7166381.CkH77a7QuE@xps> From: Ray Kinsella Openpgp: preference=signencrypt Autocrypt: addr=mdr@ashroe.eu; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <7166381.CkH77a7QuE@xps> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 8bit X-AuthUser: mdr@ashroe.eu Subject: Re: [dpdk-dev] [dpdk-techboard] DPDK ABI/API Stability X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190408090421.ef2EzztNLwNQKalsBBnTgkI7-qE-6gjUJgSG4I-7eis@z> On 07/04/2019 10:48, Thomas Monjalon wrote: > 04/04/2019 16:07, Burakov, Anatoly: >> On 04-Apr-19 1:52 PM, Ray Kinsella wrote: >>> On 04/04/2019 11:54, Bruce Richardson wrote: >>>> On Thu, Apr 04, 2019 at 10:29:19AM +0100, Burakov, Anatoly wrote: >>>>> On 03-Apr-19 4:42 PM, Ray Kinsella wrote: [SNIP] >> So, if we are to cement our core API - we have to make a concrete effort >> to specify what goes and what stays, if we want it to be maintainable. >> The DPDK 1.0 specification, if you will :) > > "DPDK 1.0 specification", that's a great project name :-) > Honestly - I would say that I am nervous of this. The definition of a DPDK 1.0 specification as a gate to API stability, feels like a "great plan tomorrow" instead of a "good plan" today. I think that getting people to dedicate time to such a specification might prove problematic and I could see this effort being very time consuming. It might never get completed. My preference would be to instead adopt a well-publicised community timeline for adopting more conservative API maintenance rules. Perhaps we could give ourselves as a community a time-limited window in which to address concerns around the API before they become hardened - perhaps say until DPDK 19.11 LTS, or something of the order of 6 months to 9 months. We then would know the timeline when niggles like exposure of internal structures and mbuf structure needed to be sorted by and could prioritize accordingly. Ray K