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 55FF9A0524; Tue, 1 Jun 2021 13:18:44 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3B62A40689; Tue, 1 Jun 2021 13:18:44 +0200 (CEST) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by mails.dpdk.org (Postfix) with ESMTP id 50FC540041 for ; Tue, 1 Jun 2021 13:18:42 +0200 (CEST) IronPort-SDR: CvXF7m0iXsyLJu7Tup5U+ZIbYR5t5aKs6VKLSErEdI9sm4/jH5pov0YmXMHHac6D7GKixjU+/5 OV9tvKrRoxaQ== X-IronPort-AV: E=McAfee;i="6200,9189,10001"; a="183207276" X-IronPort-AV: E=Sophos;i="5.83,239,1616482800"; d="scan'208";a="183207276" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2021 04:18:41 -0700 IronPort-SDR: LTtDmWkXXBhgvaUPj7lxdp5zebuttV7cIr6aAzLVYZwr7yKnI7eqrzBqT/xVIBIWxHcgenUsxd +uawZBzpr1gA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,239,1616482800"; d="scan'208";a="549026111" Received: from irsmsx603.ger.corp.intel.com ([163.33.146.9]) by orsmga004.jf.intel.com with ESMTP; 01 Jun 2021 04:18:40 -0700 Received: from shsmsx601.ccr.corp.intel.com (10.109.6.141) by irsmsx603.ger.corp.intel.com (163.33.146.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Tue, 1 Jun 2021 12:18:38 +0100 Received: from shsmsx601.ccr.corp.intel.com ([10.109.6.141]) by SHSMSX601.ccr.corp.intel.com ([10.109.6.141]) with mapi id 15.01.2242.008; Tue, 1 Jun 2021 19:18:36 +0800 From: "Zhang, Qi Z" To: "Nicolau, Radu" , "dev@dpdk.org" CC: "Richardson, Bruce" , "Noonan, Gordon" , "Wu, Jingjing" , "Xing, Beilei" , "Nicolau, Radu" Thread-Topic: [dpdk-dev] [PATCH] net/iavf: use write combining store for tail updates Thread-Index: AQHXRxsYKJfu7/HJFEWVfrrICra2i6r/IV/w Date: Tue, 1 Jun 2021 11:18:36 +0000 Message-ID: <8dd5cd4c5fc84e8c982daf2d3825aa90@intel.com> References: <20210512102854.2940330-1-radu.nicolau@intel.com> In-Reply-To: <20210512102854.2940330-1-radu.nicolau@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-reaction: no-action dlp-version: 11.5.1.3 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 Subject: Re: [dpdk-dev] [PATCH] net/iavf: use write combining store for tail updates 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 Sender: "dev" > -----Original Message----- > From: dev On Behalf Of Radu Nicolau > Sent: Wednesday, May 12, 2021 6:29 PM > To: dev@dpdk.org > Cc: Richardson, Bruce ; Noonan, Gordon > ; Wu, Jingjing ; Xing, > Beilei ; Nicolau, Radu > Subject: [dpdk-dev] [PATCH] net/iavf: use write combining store for tail > updates >=20 > From: Gordon Noonan >=20 > Performance improvement: use a write combining store instead of a regular > mmio write to update queue tail registers. >=20 > Signed-off-by: Gordon Noonan > Signed-off-by: Radu Nicolau Acked-by: Qi Zhang Applied to dpdk-next-net-intel. Thanks Qi