From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id E9C6141EB0; Thu, 16 Mar 2023 12:00:24 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id DA89142D37; Thu, 16 Mar 2023 12:00:24 +0100 (CET) Received: from new3-smtp.messagingengine.com (new3-smtp.messagingengine.com [66.111.4.229]) by mails.dpdk.org (Postfix) with ESMTP id A1E2D42D32 for <dev@dpdk.org>; Thu, 16 Mar 2023 12:00:23 +0100 (CET) Received: from compute6.internal (compute6.nyi.internal [10.202.2.47]) by mailnew.nyi.internal (Postfix) with ESMTP id E085E58213D; Thu, 16 Mar 2023 07:00:22 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Thu, 16 Mar 2023 07:00:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= cc:cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:sender:subject:subject:to:to; s=fm2; t= 1678964422; x=1678971622; bh=h+bI98MHTrZ/+SNotDuZsi0uNTMAFe39Vz7 pN+9aBUU=; b=ugUcFXKujc3qNGBwbCpgNg7bgrmwwDbHa9DweAfr7iguh00pU2u fBW39Dh6jKlreCVl2JMrxl0dQ0wRoC+bP/X+U766jADWLpJh9PPHcyy5p74eNvBq BICU+WQer2dtnzDfCstc/RnVhnnnFTfqj8w1GhOAm4zslIUPAANljxO2Bg8QVIHW vr9y5StFNoIe1ltVcyPSE2cXr61jIQk/AoFoMJ1yXhW65ThRpH2z9x3gsoQaI7vV cMEcZhGZZK8NnsI/gBictUjWukRrNfBDn6FwsArkenm2Ou608nbxQxnmDO8h7/bz bsGag9cGZswT/0eXGRif2ry9nDNjYrzESgg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:sender:subject:subject:to:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t= 1678964422; x=1678971622; bh=h+bI98MHTrZ/+SNotDuZsi0uNTMAFe39Vz7 pN+9aBUU=; b=uHQVVP4jnfuqf70WQe+98KsU8DW0k9NBr4HS4A6VpXt4piRZEPx NU8WU3H0GCDoXgfnGcCqly5vX8MmN0Ten+T7mVPYwKnjFuQUTBXSXgN+Nta23r4a 8ZTkurzvNMRAFiLGqdTW/QUXKC6EpZXvEhl6MY44qEwYOVFZHIn4q8B3hrQpE/re 5B9r8k5J6BAg6iYQxM/8WRW5SguV2lOA0kIOhO1vLkZdPmyXjRyDYH3aABrGB1Kl 8jjwimyAgel+AzLDIpB7JBAv1vM3HGBBII8SmzDLQ4L+HAwLlmajTF9ho4x4np2Q oRC7/095Dob/mmOsIl+7LaL6bhR+e0+wtCg== X-ME-Sender: <xms:xfYSZIrHHLrZuRnwjQDORUq2dQWB3Gaabmy8PKDqV_gdplcrGGe7EA> <xme:xfYSZOoNtQAy8jX-T1HjEOJZUpe7EZ_srsIA1525Sv_y45y8_ZF2m_a0THuTFV2ob w7xc9MCVhxhtpN5KQ> X-ME-Received: <xmr:xfYSZNOAr65cB7_jTGh5YtjW5kd9BMD2zug3h3s8j-ZL7Dhyuu1edvN76cX74y3IogGrlEhzyLqq5QEi3PHXBBavZg> X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvdeftddgvdefucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkjghfggfgtgesthhqredttddtudenucfhrhhomhepvfhhohhm rghsucfoohhnjhgrlhhonhcuoehthhhomhgrshesmhhonhhjrghlohhnrdhnvghtqeenuc ggtffrrghtthgvrhhnpeefhfejleeuvdevtddutdeutdevhfeijeethfffueejhfetuddu vedtkedtieekffenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfh hrohhmpehthhhomhgrshesmhhonhhjrghlohhnrdhnvght X-ME-Proxy: <xmx:xfYSZP7X3g9yffDCg6PdZ6ubq6yPZPtjkw83zCpkmPk1GrP_Y3u_kA> <xmx:xfYSZH7vW5bi3oZfbCtK0YsjiKyOoM2bc12e1w7wBv1vzEhhCSs2fw> <xmx:xfYSZPjIXiskINS28NoFlyYnUygGWuDsGNKsiw3Jh8A2YAnQC-XJxw> <xmx:xvYSZBhRVwUbo1ZwCiQqlD9lrCSoyntCht9lFjS07pseHNSjSDI1qg> Feedback-ID: i47234305:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 16 Mar 2023 07:00:16 -0400 (EDT) From: Thomas Monjalon <thomas@monjalon.net> To: dev@dpdk.org Cc: David Marchand <david.marchand@redhat.com>, Bruce Richardson <bruce.richardson@intel.com>, Qi Zhang <qi.z.zhang@intel.com>, Morten =?ISO-8859-1?Q?Br=F8rup?= <mb@smartsharesystems.com>, Shijith Thotton <sthotton@marvell.com>, Olivier Matz <olivier.matz@6wind.com>, Ruifeng Wang <ruifeng.wang@arm.com>, Parav Pandit <parav@nvidia.com>, Xueming Li <xuemingl@nvidia.com>, Tomasz Duszynski <tduszynski@marvell.com>, Long Li <longli@microsoft.com>, Nithin Dabilpuram <ndabilpuram@marvell.com>, Kiran Kumar K <kirankumark@marvell.com>, Sunil Kumar Kori <skori@marvell.com>, Satha Rao <skoteshwar@marvell.com>, Jingjing Wu <jingjing.wu@intel.com>, Beilei Xing <beilei.xing@intel.com>, Ankur Dwivedi <adwivedi@marvell.com>, Anoob Joseph <anoobj@marvell.com>, Tejasree Kondoj <ktejasree@marvell.com>, Kai Ji <kai.ji@intel.com>, Pablo de Lara <pablo.de.lara.guarch@intel.com>, Radha Mohan Chintakuntla <radhac@marvell.com>, Veerasenareddy Burru <vburru@marvell.com>, Kevin Laatz <kevin.laatz@intel.com>, Pavan Nikhilesh <pbhagavatula@marvell.com>, Mattias =?ISO-8859-1?Q?R=F6nnblom?= <mattias.ronnblom@ericsson.com>, Liang Ma <liangma@liangbit.com>, Peter Mccarthy <peter.mccarthy@intel.com>, Jerin Jacob <jerinj@marvell.com>, Harry van Haaren <harry.van.haaren@intel.com>, "Artem V. Andreev" <artem.andreev@oktetlabs.ru>, Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>, Ashwin Sekhar T K <asekhar@marvell.com>, Srikanth Yalavarthi <syalavarthi@marvell.com>, "John W. Linville" <linville@tuxdriver.com>, Ciara Loftus <ciara.loftus@intel.com>, Chas Williams <chas3@att.com>, "Min Hu (Connor)" <humin29@huawei.com>, Yuying Zhang <yuying.zhang@intel.com>, Gaetan Rivet <grive@u256.net>, Dongdong Liu <liudongdong3@huawei.com>, Yisen Zhuang <yisen.zhuang@huawei.com>, Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>, Qiming Yang <qiming.yang@intel.com>, Jakub Grajciar <jgrajcia@cisco.com>, Tetsuya Mukawa <mtetsuyah@gmail.com>, Jakub Palider <jpalider@marvell.com>, Sachin Saxena <sachin.saxena@nxp.com>, Hemant Agrawal <hemant.agrawal@nxp.com>, fengchengwen <fengchengwen@huawei.com> Subject: Re: [PATCH v3 1/5] build: clarify configuration without IOVA field in mbuf Date: Thu, 16 Mar 2023 12:00:15 +0100 Message-ID: <2273513.ElGaqSPkdT@thomas> In-Reply-To: <61879568-0fbc-5ce9-26c2-af5daae9afc4@huawei.com> References: <20230219115529.3260580-1-thomas@monjalon.net> <20230314142958.3479004-2-thomas@monjalon.net> <61879568-0fbc-5ce9-26c2-af5daae9afc4@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org 15/03/2023 02:56, fengchengwen: > On 2023/3/14 22:29, Thomas Monjalon wrote: > > The impact of the option "enable_iova_as_pa" is explained for users. > >=20 > > Also the code flag "RTE_IOVA_AS_PA" is renamed as "RTE_IOVA_IN_MBUF" > > in order to be more accurate (IOVA mode is decided at runtime), > > and more readable in the code. > >=20 > > Similarly the drivers are using the variable "require_iova_in_mbuf" > > instead of "pmd_supports_disable_iova_as_pa" with an opposite meaning. > > By default, it is assumed that drivers require the IOVA field in mbuf. > > The drivers which support removing this field have to declare themselve= s. > > Some bus drivers are declared compatible. > >=20 > > If the option "enable_iova_as_pa" is disabled, the unsupported drivers > > will be listed with the new reason text "requires IOVA in mbuf". > >=20 > > Suggested-by: Bruce Richardson <bruce.richardson@intel.com> > > Signed-off-by: Thomas Monjalon <thomas@monjalon.net> > > Reviewed-by: Bruce Richardson <bruce.richardson@intel.com> > > Acked-by: Morten Br=F8rup <mb@smartsharesystems.com> >=20 > Acked-by: Chengwen Feng <fengchengwen@huawei.com> Applied