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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 5F93FC2D0DB for ; Thu, 30 Jan 2020 16:33:48 +0000 (UTC) Received: from dpdk.org (dpdk.org [92.243.14.124]) by mail.kernel.org (Postfix) with ESMTP id D7FE3206D5 for ; Thu, 30 Jan 2020 16:33:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D7FE3206D5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ashroe.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dev-bounces@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id C410E1C031; Thu, 30 Jan 2020 17:33:46 +0100 (CET) Received: from relay0108.mxlogin.com (relay0108.mxlogin.com [199.181.239.108]) by dpdk.org (Postfix) with ESMTP id 3726E1C030 for ; Thu, 30 Jan 2020 17:33:45 +0100 (CET) Received: from filter004.mxroute.com ([149.28.56.236] 149.28.56.236.vultr.com) (Authenticated sender: mN4UYu2MZsgR) by relay0108.mxlogin.com (ZoneMTA) with ESMTPSA id 16ff74d1040000de62.002 for (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256); Thu, 30 Jan 2020 16:33:40 +0000 X-Zone-Loop: 4559808c1fd2e31c7442e6d448676a5e2ab2dcbb9471 X-Originating-IP: [149.28.56.236] Received: from galaxy.mxroute.com (unknown [23.92.70.113]) by filter004.mxroute.com (Postfix) with ESMTPS id 8F69D3E9F2; Thu, 30 Jan 2020 16:33:34 +0000 (UTC) Received: from irdmzpr01-ext.ir.intel.com ([192.198.151.36]) by galaxy.mxroute.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.91) (envelope-from ) id 1ixCS5-00067Y-OM; Thu, 30 Jan 2020 11:13:57 -0500 To: Ferruh Yigit , Neil Horman , David Marchand Cc: Thomas Monjalon , Cristian Dumitrescu , dpdk stable , dev , Eelco Chaudron , Kevin Traynor , Ian Stokes , Ilya Maximets , Luca Boccassi References: <20191217130742.165886.15691.stgit@netdev64> <20200116115458.GB3282@hmswarspite.think-freely.org> From: Ray Kinsella Autocrypt: addr=mdr@ashroe.eu; 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WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 MIME-Version: 1.0 In-Reply-To: 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-stable] [PATCH] meter: move RFC4115 trTCM APIs as none experimental 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" On 16/01/2020 12:42, Ferruh Yigit wrote: > On 1/16/2020 11:54 AM, Neil Horman wrote: >> On Thu, Jan 16, 2020 at 12:25:06PM +0100, David Marchand wrote: >>> On Tue, Dec 17, 2019 at 2:08 PM Eelco Chaudron wrote: >>>> >>>> Moved RFC4115 APIs to none experimental as they have been there >>>> since 19.02. Also, these APIs are the same as the none RFC4115 APIs. >>>> >>>> Signed-off-by: Eelco Chaudron >>> >>> There is a discussion on the OVS ml at the moment to get these symbols >>> in the stable ABI for 19.11. >>> I want to understand how this would be done. >>> >>> - I take this patch in 20.02, these symbols are added in the 20.0.1 ABI. >>> On the other hand, the 19.11 release maintains the 20.0 ABI. >>> >>> Does it mean the backport adds these symbols with the 20.0 version in >>> the 19.11 branch? >>> Or is 20.0.1 version acceptable / a thing we want? >>> >>> >>> - These symbol already existed in the 20.0 ABI, versioned as EXPERIMENTAL. >>> We can go and remove these entries since we are not bound to preserve >>> the experimental APIs. >>> But, on the other hand, nothing should prevent us from keeping some >>> aliases so that the symbols versioned EXPERIMENTAL are still available >>> to existing users. >>> >> I would say that choice is up to you. If you want to alias them to be nice to >> prior users, thats fine by me. But experimental means experimental, and so users >> have to be prepared to rebuild when things change, even if that change is >> changing the version from experimental to a concrete version. >> > > I would prefer to keep the alias and don't break the existing users, specially > for the case experimental API is becoming mature without change. > Apologies for dragging up an older thread. I had a thought later that we should add something formal to the ABI Policy. Such that if we have an API that has been part of DPDK as experimental for a long time, to the point it has a number of users - out of kindness, the maintainer may ask a contributor to add an alias until the next major ABI version is declared? So as not to break consuming projects - make sense? Thanks, Ray K