From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 60FA2A034C; Sun, 13 Mar 2022 13:15:32 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E363140E2D; Sun, 13 Mar 2022 13:15:31 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by mails.dpdk.org (Postfix) with ESMTP id 9F48840698 for ; Sun, 13 Mar 2022 13:15:30 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1647173730; x=1678709730; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=/2OcD3KXqGJItdTl5yG3vnbRJzuJ1b9uo8qemrSCaf0=; b=Or5mB0zp1y/EOYJAOct41Sm5jb4DQGBFPNg1eYHcfm0q0gMlGgLrI+/x 0zaZY8RYMJ8EmmKv+6qWFsf+v6NdU7eo9sTRRMI4ue+wi75JteqCU/xXU S4oyRtpOaUXJ3+RqOBeyFjVinHH6cYtUDJmAeYoXKX7JvO/rQLOhGmXId PJWd57eTgMMG8czrNCo/YOMMqOfIp7JfoCVf8+p7GWx5eI9bpccqtsV/0 ErI0F202FWYYk2isQj1RG8bLy2Y/q86rQM/4Wgs8wAfWEV7ySvIAFh2hh k9QJfT3Wn3+yWDNcaixlQ/sfeG8PAjMTbK4756TchNB+18EXvxPP1hzBi w==; X-IronPort-AV: E=McAfee;i="6200,9189,10284"; a="280618868" X-IronPort-AV: E=Sophos;i="5.90,178,1643702400"; d="scan'208";a="280618868" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Mar 2022 05:15:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,178,1643702400"; d="scan'208";a="548930796" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by fmsmga007.fm.intel.com with ESMTP; 13 Mar 2022 05:15:29 -0700 Received: from shsmsx606.ccr.corp.intel.com (10.109.6.216) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Sun, 13 Mar 2022 05:15:28 -0700 Received: from shsmsx601.ccr.corp.intel.com (10.109.6.141) by SHSMSX606.ccr.corp.intel.com (10.109.6.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Sun, 13 Mar 2022 20:15:26 +0800 Received: from shsmsx601.ccr.corp.intel.com ([10.109.6.141]) by SHSMSX601.ccr.corp.intel.com ([10.109.6.141]) with mapi id 15.01.2308.021; Sun, 13 Mar 2022 20:15:26 +0800 From: "Zhang, Qi Z" To: Kathleen Capella , "Wu, Jingjing" , "Xing, Beilei" CC: "dev@dpdk.org" , "nd@arm.com" , "honnappa.nagarahalli@arm.com" , "joyce.kong@arm.com" Subject: RE: [PATCH] net/iavf: replace SMP barrier with thread fence Thread-Topic: [PATCH] net/iavf: replace SMP barrier with thread fence Thread-Index: AQHYMllXvEI9bEWZFUqty+FznbBJ8ay9QrJg Date: Sun, 13 Mar 2022 12:15:26 +0000 Message-ID: <6499b2c4a8d24df6868880d5e0b6a817@intel.com> References: <20220307192644.31721-1-kathleen.capella@arm.com> In-Reply-To: <20220307192644.31721-1-kathleen.capella@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-reaction: no-action dlp-version: 11.6.401.20 dlp-product: dlpe-windows x-originating-ip: [10.239.127.36] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org > -----Original Message----- > From: Kathleen Capella > Sent: Tuesday, March 8, 2022 3:27 AM > To: Wu, Jingjing ; Xing, Beilei > Cc: dev@dpdk.org; nd@arm.com; honnappa.nagarahalli@arm.com; > joyce.kong@arm.com; Kathleen Capella > Subject: [PATCH] net/iavf: replace SMP barrier with thread fence >=20 > Replace the SMP barrier with atomic thread fence for iavf hw ring scan in= the > bulk Rx path. >=20 > This patch introduces a change to the iavf driver that was already added = to the > i40e driver [1] as part of the adoption of the use of compiler atomics. >=20 > [1] https://patches.dpdk.org/project/dpdk/patch/20210706065404.25137-3- > joyce.kong@arm.com/ Better replace URL with below commit line Commit 8649e2356689 ("net/i40e: replace SMP barrier with thread fence in Rx= ") Btw, the patch will be deferred to the next release as it's not a critical = fix.