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From: Luca Boccassi <bluca@debian.org>
To: Ray Kinsella <mdr@ashroe.eu>,
	Bruce Richardson <bruce.richardson@intel.com>,
	 "Burakov, Anatoly" <anatoly.burakov@intel.com>
Cc: dev@dpdk.org, Kevin Traynor <ktraynor@redhat.com>,
	"techboard@dpdk.org" <techboard@dpdk.org>
Subject: Re: [dpdk-dev] [dpdk-techboard] DPDK ABI/API Stability
Date: Thu, 04 Apr 2019 14:21:19 +0100	[thread overview]
Message-ID: <60afc83fc723050914d617461607a9c5a72d3017.camel@debian.org> (raw)
Message-ID: <20190404132119.YS8sGf9gua6fdxHFS-U9H5pjoRhZAQrOdqSV-1sM18U@z> (raw)
In-Reply-To: <3055e4ce-767b-ab43-43ac-c3604fd3ea5c@ashroe.eu>

On Thu, 2019-04-04 at 14:05 +0100, Ray Kinsella wrote:
> > > Question for Kevin, Luca and others who look at distro-packaging: 
> > > 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?
> > 
> > We can ship multiple versions, although it's more work so there
> > should
> > be a good reason to do it. 
> 
> 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=16.11 or libdpdk-dev=18.11.

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.
> 
> Presumably when 19.11 arrives, it will land in Debian 10 backports
> similarly.
> 
> I assume anything that lands in backports is not guaranteed to be ABI
> compatible with stable?

Yes, there's no guarantee.

-- 
Kind regards,
Luca Boccassi

  parent reply	other threads:[~2019-04-04 13:21 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-03 15:42 [dpdk-dev] " Ray Kinsella
2019-04-03 15:42 ` Ray Kinsella
2019-04-03 19:53 ` Luca Boccassi
2019-04-03 19:53   ` Luca Boccassi
2019-04-04  9:29 ` Burakov, Anatoly
2019-04-04  9:29   ` Burakov, Anatoly
2019-04-04 10:54   ` [dpdk-dev] [dpdk-techboard] " Bruce Richardson
2019-04-04 10:54     ` Bruce Richardson
2019-04-04 12:02     ` Luca Boccassi
2019-04-04 12:02       ` Luca Boccassi
2019-04-04 13:05       ` Ray Kinsella
2019-04-04 13:05         ` Ray Kinsella
2019-04-04 13:10         ` Bruce Richardson
2019-04-04 13:10           ` Bruce Richardson
2019-04-05 13:25           ` Ray Kinsella
2019-04-05 13:25             ` Ray Kinsella
2019-04-07  9:37             ` Thomas Monjalon
2019-04-07  9:37               ` Thomas Monjalon
2019-04-04 13:21         ` Luca Boccassi [this message]
2019-04-04 13:21           ` Luca Boccassi
2019-04-04 12:52     ` Ray Kinsella
2019-04-04 12:52       ` Ray Kinsella
2019-04-04 14:07       ` Burakov, Anatoly
2019-04-04 14:07         ` Burakov, Anatoly
2019-04-07  9:48         ` Thomas Monjalon
2019-04-07  9:48           ` Thomas Monjalon
2019-04-08  9:04           ` Ray Kinsella
2019-04-08  9:04             ` Ray Kinsella
2019-04-08 10:15             ` Burakov, Anatoly
2019-04-08 10:15               ` Burakov, Anatoly
2019-04-08 13:00               ` Ray Kinsella
2019-04-08 13:00                 ` Ray Kinsella
2019-04-08 13:38                 ` Burakov, Anatoly
2019-04-08 13:38                   ` Burakov, Anatoly
2019-04-08 13:58                   ` David Marchand
2019-04-08 13:58                     ` David Marchand
2019-04-08 14:02                     ` Burakov, Anatoly
2019-04-08 14:02                       ` Burakov, Anatoly
2019-04-08 14:38                       ` David Marchand
2019-04-08 14:38                         ` David Marchand
2019-04-08 15:13                         ` Stephen Hemminger
2019-04-08 15:13                           ` Stephen Hemminger
2019-04-08 15:49                         ` Burakov, Anatoly
2019-04-08 15:49                           ` Burakov, Anatoly
2019-04-10  8:35                           ` David Marchand
2019-04-10  8:35                             ` David Marchand
2019-04-08 15:50                         ` Burakov, Anatoly
2019-04-08 15:50                           ` Burakov, Anatoly
2019-04-09  9:42                   ` Ray Kinsella
2019-04-09  9:42                     ` Ray Kinsella
2019-04-14  0:42             ` Neil Horman
2019-04-14  0:42               ` Neil Horman
2019-04-15  9:10               ` Bruce Richardson
2019-04-15  9:10                 ` Bruce Richardson
2019-04-04 15:51     ` Stephen Hemminger
2019-04-04 15:51       ` Stephen Hemminger
2019-04-04 16:37       ` Burakov, Anatoly
2019-04-04 16:37         ` Burakov, Anatoly
2019-04-04 16:56     ` Kevin Traynor
2019-04-04 16:56       ` Kevin Traynor
2019-04-04 19:08       ` Wiles, Keith
2019-04-04 19:08         ` Wiles, Keith
2019-04-04 20:13         ` Kevin Traynor
2019-04-04 20:13           ` Kevin Traynor
2019-04-05 13:30           ` Ray Kinsella
2019-04-05 13:30             ` Ray Kinsella
2019-04-05 13:29         ` Ray Kinsella
2019-04-05 13:29           ` Ray Kinsella
2019-04-04  9:47 ` [dpdk-dev] " Kevin Traynor
2019-04-04  9:47   ` Kevin Traynor
2019-04-04 13:16   ` Ray Kinsella
2019-04-04 13:16     ` Ray Kinsella
2019-04-10  5:14 ` Honnappa Nagarahalli
2019-04-10  5:14   ` Honnappa Nagarahalli
2019-04-10  9:03   ` [dpdk-dev] [dpdk-techboard] " Bruce Richardson
2019-04-10  9:03     ` Bruce Richardson
2019-04-10  9:43   ` [dpdk-dev] " Luca Boccassi
2019-04-10  9:43     ` Luca Boccassi

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