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Mon, 13 Jul 2020 12:52:25 +0000 From: "Trahe, Fiona" To: "Richardson, Bruce" , "Nicolau, Radu" CC: "dev@dpdk.org" , "Xing, Beilei" , "Guo, Jia" , "Ananyev, Konstantin" , "jerinjacobk@gmail.com" , "david.marchand@redhat.com" , "Zhao1, Wei" Thread-Topic: [PATCH v6 3/4] qat: use WC store to update queue tail registers Thread-Index: AQHWWREVQPGkkoxgokqZRn6IAaPGkKkFdJ8AgAABjyA= Date: Mon, 13 Jul 2020 12:52:24 +0000 Message-ID: References: <1591870283-7776-1-git-send-email-radu.nicolau@intel.com> <1594643247-11094-1-git-send-email-radu.nicolau@intel.com> <1594643247-11094-4-git-send-email-radu.nicolau@intel.com> <20200713124441.GF694@bricha3-MOBL.ger.corp.intel.com> In-Reply-To: <20200713124441.GF694@bricha3-MOBL.ger.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.2.0.6 authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=intel.com; 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DIR:OUT; SFP:1102; x-ms-exchange-antispam-messagedata: A100EPsR5XH0mxjJHzSgaKB4cpwUD0hszZn3X1MJdq8q6pzJ431hgCeiC9EvnQtydLIN9jhD0tXeyETtRlyP0MDbkI7A+pjoUNqWJ0ZKEY2vn5Rv2YdM+0zqUCqRH6eNzMhDtHIjsZuodcv8KpjUyH0QgoewJhzjE2EVVJ9U9QgMeAT0C1nkQEUoZUAgD8Ptx4yZ6uHQt3XvFTFBqKBSkQG6HktM9Rd72mEUW5dGU5Ge3hO1LueXYwCzciQWmeDmm03wKj57lH8NSMuxqSfZPz4FCbgpwyqPztwCVdDFQVJTsYdX2+gC+oeiQp933AaE3DzGCPDrF4j16OyKSI5wSr+esJ5WVZ0Ur3krY7VH+LlXnM/c8D/bNgOaTAhLLkOBgcEMerhX2ghLZMaq7bYTLESpCF2zhSPORH3yEKaoJ0J13QLo1WML+hs92RhuQUfFxGXYMP+mDWKo/aFscsJnJLDv4kPvi6BhYZPQ6ktRL9Q= 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: SN6PR11MB2880.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8050c5cc-cdb9-4198-a8f2-08d8272b9772 X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Jul 2020 12:52:24.9466 (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: YMGPHpEDA1OyD6DXaj7jJuyvCTu6nBMe8BNwST87zecc23dm/EBUi1u5pCTt2KsRDt3XePfFr5lsZREfTW3i6g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR11MB3053 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH v6 3/4] qat: 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" > -----Original Message----- > From: Bruce Richardson > Sent: Monday, July 13, 2020 1:45 PM > To: Nicolau, Radu > Cc: dev@dpdk.org; Xing, Beilei ; Guo, Jia ; Ananyev, Konstantin > ; jerinjacobk@gmail.com; david.marchand@red= hat.com; Trahe, Fiona > ; Zhao1, Wei > Subject: Re: [PATCH v6 3/4] qat: use WC store to update queue tail regist= ers >=20 > On Mon, Jul 13, 2020 at 01:27:26PM +0100, Radu Nicolau wrote: > > Performance improvement: use a write combining store > > instead of a regular mmio write to update queue tail > > registers. > > > > Signed-off-by: Radu Nicolau > > --- > minor nit, I think the subject prefix on the patch should be crypto/qat. when it affects all qat PMDs, i.e. crypto sym, crypto asym and compression,= as this does we usually use drivers/qat