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Wed, 23 Sep 2020 01:19:54 +0000 From: "Lu, Wenzhuo" To: "Nicolau, Radu" , "dev@dpdk.org" CC: "Xing, Beilei" , "Guo, Jia" , "Richardson, Bruce" , "Ananyev, Konstantin" , "jerinjacobk@gmail.com" , "david.marchand@redhat.com" , "Trahe, Fiona" , "Zhao1, Wei" , "ruifeng.wang@arm.com" , "Yang, Qiming" , "Zhang, Qi Z" , "Nicolau, Radu" Thread-Topic: [dpdk-dev] [PATCH v11 2/5] net/i40e: use WC store to update queue tail registers Thread-Index: AQHWe48yCPsUPRrahkurYEvcbW4lt6l1mBgg Date: Wed, 23 Sep 2020 01:19:54 +0000 Message-ID: References: <1591870283-7776-1-git-send-email-radu.nicolau@intel.com> <20200826095552.82525-1-radu.nicolau@intel.com> <20200826095552.82525-3-radu.nicolau@intel.com> In-Reply-To: <20200826095552.82525-3-radu.nicolau@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=intel.com; x-originating-ip: [192.198.147.206] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: c12571a8-43c3-4c80-123b-08d85f5ec736 x-ms-traffictypediagnostic: DM5PR11MB1851: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:459; 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SFP:1102; x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR11MB3498.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: c12571a8-43c3-4c80-123b-08d85f5ec736 X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Sep 2020 01:19:54.4860 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 1wCGyx8IKvBNexreEDUoGSmUHQemr7lIP9iCD6gibRtScy9L6QivPGe1Vn48TSEWu9lMoSxdOuIQfBmkdYHuiA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR11MB1851 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH v11 2/5] net/i40e: use WC store to update queue tail registers 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Archived-At: List-Archive: Hi, > -----Original Message----- > From: dev On Behalf Of Radu Nicolau > Sent: Wednesday, August 26, 2020 5:56 PM > To: dev@dpdk.org > Cc: Xing, Beilei ; Guo, Jia ; > Richardson, Bruce ; Ananyev, Konstantin > ; jerinjacobk@gmail.com; > david.marchand@redhat.com; Trahe, Fiona ; Zhao1, > Wei ; ruifeng.wang@arm.com; Yang, Qiming > ; Zhang, Qi Z ; Nicolau, Rad= u > > Subject: [dpdk-dev] [PATCH v11 2/5] net/i40e: use WC store to update queu= e tail > registers >=20 > Performance improvement: use a write combining store instead of a regular > mmio write to update queue tail registers. >=20 > Signed-off-by: Radu Nicolau > Acked-by: Bruce Richardson Reviewed-by: Wenzhuo Lu