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 3577FA0679 for ; Thu, 4 Apr 2019 15:21:25 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id DBE951B115; Thu, 4 Apr 2019 15:21:23 +0200 (CEST) Received: from mail-wm1-f68.google.com (mail-wm1-f68.google.com [209.85.128.68]) by dpdk.org (Postfix) with ESMTP id AF1C31B107; Thu, 4 Apr 2019 15:21:22 +0200 (CEST) Received: by mail-wm1-f68.google.com with SMTP id v14so3385838wmf.2; Thu, 04 Apr 2019 06:21:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:content-transfer-encoding:user-agent:mime-version; bh=Xq7Q+5KtXQE+yj3Zn8gauYrwWN5rK69Eue6KMvzpk9U=; b=lTnMAKlt7eSIe2N+oF+HBB+Eg7pqzKwL1HecwPCcg0oXB2REutzancrCfgKAGGPkkZ U60bEpFjCAGtgxHMJL9J4xo7P7Bfkbal/gPej0Upw43niJ5uU/5aF0mGPRAilmrc8pjK CnOT630YGOKT3Hk5FA5/Fq2vDjgRnE20MSuP86VcxCuadFaaJA4bWgSstPrQpKK5uWvr +1MTxyKL8BTyMdcbn6+VrIXl+hE3+OrADlPjXywrjeDnGkg8EAgOQ45R+qJloSg81tcY ZuUUTs8g8xu3H3tDOYt3DzMYlRFxsIjDBQ2m1kSoE85bLsF4TXrcY/BlZZtF2LkQuVdp CdNg== X-Gm-Message-State: APjAAAXfhPfPKj2eA9zjanM8qrDxZnMT1wp2YtXakwNpPpY2BVBHvj6C s0vFjkaS5Qwp581+8Aa/y/o= X-Google-Smtp-Source: APXvYqx1K3R5yDyqmixbSDyxNeoUxPRuvBtfhfQkfyG6CG5YOMP07pF/tMg+6Fk0eh/a1NcyFGx2JQ== X-Received: by 2002:a1c:23cc:: with SMTP id j195mr3831680wmj.74.1554384082294; Thu, 04 Apr 2019 06:21:22 -0700 (PDT) Received: from localhost ([2a01:4b00:f419:6f00:250:b6ff:feb7:bd60]) by smtp.gmail.com with ESMTPSA id z7sm13801861wrt.10.2019.04.04.06.21.20 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 04 Apr 2019 06:21:20 -0700 (PDT) Message-ID: <60afc83fc723050914d617461607a9c5a72d3017.camel@debian.org> From: Luca Boccassi To: Ray Kinsella , Bruce Richardson , "Burakov, Anatoly" Cc: dev@dpdk.org, Kevin Traynor , "techboard@dpdk.org" Date: Thu, 04 Apr 2019 14:21:19 +0100 In-Reply-To: <3055e4ce-767b-ab43-43ac-c3604fd3ea5c@ashroe.eu> References: <94df3cc4-de54-72d6-84c6-81bebd209a81@intel.com> <20190404105447.GA1351@bricha3-MOBL.ger.corp.intel.com> <4ec2c98004ef5d693d0e033c93820580bbd2ebfa.camel@debian.org> <3055e4ce-767b-ab43-43ac-c3604fd3ea5c@ashroe.eu> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.30.5-1 MIME-Version: 1.0 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: <20190404132119.YS8sGf9gua6fdxHFS-U9H5pjoRhZAQrOdqSV-1sM18U@z> On Thu, 2019-04-04 at 14:05 +0100, Ray Kinsella wrote: > > > Question for Kevin, Luca and others who look at distro-packaging:=20 > > > is > > > it the > > > case that each distro will only ship one version of DPDK, or is > > > it > > > possible > > > that if we have ABI breaks, a distro will provide two copies of > > > DPDK > > > simultaneously, e.g. a 19.11 ABI version and a 20.11 ABI version? > >=20 > > We can ship multiple versions, although it's more work so there > > should > > be a good reason to do it.=20 >=20 > Well you already kind of do right. > You ship 16.11.8 with Debian 9 and then 18.11 with Debian 9 > backports. Yes indeed - backports has a different policy and is not part of "Debian main" - for example, stability and security support are not guaranteed. Also there is no guarantee of compatibility of co- installability - while you can have the individual libraries from each version at the same time, you can't have both libdpdk-dev packages which are necessary to build an application. So you have to choose and install either libdpdk-dev=3D16.11 or libdpdk-dev=3D18.11. It is possible to have multiple versions in the same archive at the same time, and with multiple -dev packages, and that's what I meant when I mentioned it was more work. > > At the moment in Debian and Ubuntu we don't, > > and we tend to ship whatever the latest LTS version is at the > > distro > > freeze milestone - for example Debian 10 which will be released > > soon > > (TM) will have 18.11.0. >=20 > Presumably when 19.11 arrives, it will land in Debian 10 backports > similarly. >=20 > I assume anything that lands in backports is not guaranteed to be ABI > compatible with stable? Yes, there's no guarantee. --=20 Kind regards, Luca Boccassi