From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by dpdk.org (Postfix) with ESMTP id E293E234 for ; Wed, 10 May 2017 15:04:19 +0200 (CEST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 94AF1207D9; Wed, 10 May 2017 09:04:19 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute1.internal (MEProxy); Wed, 10 May 2017 09:04:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc:x-sasl-enc; s=mesmtp; bh=cAgOIpWb91iFpTy 81gwwa8CXglXVR3JCnUCguc0dYOY=; b=HT478Q1FdkdZk12eVAwsaKIPtMK+Lom qJwy8nMrD6N1cXGmcbe1FRfR1IJM5wDHla1PjNjBxE8OeRiJZ3vZZVw97eFMrs4h wPSbq4QW/4eBt4fhSMd8nPla1/SuEuxFkMZt04D3xt0+jIIpRHjvYwqUfks4KQZv 79CLqF8aQ7YA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc:x-sasl-enc; s= fm1; bh=cAgOIpWb91iFpTy81gwwa8CXglXVR3JCnUCguc0dYOY=; b=Ek2C0ul0 jAAJaVxFk0cLBTc2jdfQ+FtDiUAfvptVsKfNYis70/3ZPaYBOGsJKWBac/tKp/Vf ufgsfknSoce9N8n45jjKXYSxhLgN75YvxwbS3bXlEOYpRFCgxfmC4EclS6NY5uZF 0cDzkuNOqZGSCPyeihPQy+O2LJjDDoG7yFqV+3HLlhqO1TPQFRLc2EWTRDNb1Lpv G0PgAf9nB7VR5R2xlBXl9oUZIF6fX+eaY70M+fkgudYm5cweDtWrvCZjlZnoNbXK oHDf4EVwXPEhhTAroLD34vkKxeGIQk2JtpDe2j8o4iqz0m4OChLr9Ee1H4iGjyU8 c9h08Wmby8vjeQ== X-ME-Sender: X-Sasl-enc: 6ERI48pexJeoSfDraqNPW2PJEIvbYjXuFQCOdGq+BKou 1494421459 Received: from xps.localnet (184.203.134.77.rev.sfr.net [77.134.203.184]) by mail.messagingengine.com (Postfix) with ESMTPA id 52D0B24A0F; Wed, 10 May 2017 09:04:19 -0400 (EDT) From: Thomas Monjalon To: Gaetan Rivet Cc: dev@dpdk.org Date: Wed, 10 May 2017 15:04:18 +0200 Message-ID: <1539960.YVRrzX6C2B@xps> In-Reply-To: References: <4b1edeb12ff61bdb04a0189be30395589c713dbb.1494420483.git.gaetan.rivet@6wind.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Subject: Re: [dpdk-dev] [PATCH 2/2] devargs: announce ABI change for device parameters 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: , X-List-Received-Date: Wed, 10 May 2017 13:04:20 -0000 10/05/2017 14:52, Gaetan Rivet: > The PCI and virtual bus are planned to be moved to the generic > drivers/bus directory in v17.08. For this change to be possible, the EAL > must be made completely independent. > > The rte_devargs structure currently holds device representation internal > to those two busses. It must be made generic before this work can be > completed. > > Instead of using either a driver name for a vdev or a PCI address for a > PCI device, a devargs structure will have to be able to describe any > possible device on all busses, without introducing dependencies on > any bus-specific device representation. This will break the ABI for this > structure. > > Additionally, an evolution will occur regarding the device parsing > from the command-line. A user must be able to set which bus will handle > which device, and this setting is integral to the definition of a > device. This syntax evolution is not announced below. > The format has not yet been formally defined, but a proposition will > follow soon for a new command line parameter format for all devices. > > Signed-off-by: Gaetan Rivet > --- > doc/guides/rel_notes/deprecation.rst | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst > index c2f58eb..e91fc99 100644 > --- a/doc/guides/rel_notes/deprecation.rst > +++ b/doc/guides/rel_notes/deprecation.rst > @@ -87,3 +87,7 @@ Deprecation Notices > > - ``rte_eal_pci_detach``, replaced by using the corresponding bus generic > method ``detach``. > + > +* devargs: An ABI change is planned for 17.08 for the structure ``rte_devargs``. > + The current version is dependent on bus-specific device identifier, which will > + be made generic and abstracted, in order to make the EAL bus-agnostic. >