From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH 1/4] vhost: handle VHOST_USER_SET_LOG_BASE request Date: Mon, 07 Dec 2015 03:03:24 +0100 Message-ID: <1717599.oECOgsfiks@xps13> References: <1449027793-30975-1-git-send-email-yuanhan.liu@linux.intel.com> <2679675.c6cKM9bBsr@xps13> <20151207020035.GD29571@yliu-dev.sh.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org, Victor Kaplansky , "Michael S. Tsirkin" To: Yuanhan Liu Return-path: Received: from mail-wm0-f41.google.com (mail-wm0-f41.google.com [74.125.82.41]) by dpdk.org (Postfix) with ESMTP id ED12493EE for ; Mon, 7 Dec 2015 03:04:35 +0100 (CET) Received: by wmec201 with SMTP id c201so132318331wme.1 for ; Sun, 06 Dec 2015 18:04:35 -0800 (PST) In-Reply-To: <20151207020035.GD29571@yliu-dev.sh.intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 2015-12-07 10:00, Yuanhan Liu: > On Mon, Dec 07, 2015 at 12:07:28AM +0100, Thomas Monjalon wrote: > > 2015-12-02 15:53, Panu Matilainen: > > > This (and other changes in patch 2 breaks the librte_vhost ABI again, so > > > you'd need to at least add a deprecation note to 2.2 to be able to do it > > > in 2.3 at all according to the ABI policy. > > > > > > Perhaps a better option would be adding some padding to the structs now > > > for 2.2 since the vhost ABI is broken there anyway. That would at least > > > give a chance to keep it compatible from 2.2 to 2.3. > > > > Please could you point where the vhost ABI is broken in 2.2? > > Thomas, here are the changes to rte_virtio_net.h: > > > $ git diff 381316f6a225139d22d39b5ab8d50c40607924ca..19d4d7ef2a216b5418d8edb5b004d1a58bba3cc1 \ > -- lib/librte_vhost/rte_virtio_net.h > [...] The problem is that the changes are not noticed in the release notes and the LIBABIVER is still 1.