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Mon, 7 Feb 2022 13:15:45 +0000 Received: from MW2PR12MB4666.namprd12.prod.outlook.com (2603:10b6:302:13::22) by BYAPR12MB3495.namprd12.prod.outlook.com (2603:10b6:a03:ae::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4951.17; Mon, 7 Feb 2022 13:15:42 +0000 Received: from MW2PR12MB4666.namprd12.prod.outlook.com ([fe80::9d4e:649c:c6b8:b353]) by MW2PR12MB4666.namprd12.prod.outlook.com ([fe80::9d4e:649c:c6b8:b353%4]) with mapi id 15.20.4951.019; Mon, 7 Feb 2022 13:15:42 +0000 From: Ori Kam <orika@nvidia.com> To: Alexander Kozyrev <akozyrev@nvidia.com>, "dev@dpdk.org" <dev@dpdk.org> CC: "NBU-Contact-Thomas Monjalon (EXTERNAL)" <thomas@monjalon.net>, "ivan.malov@oktetlabs.ru" <ivan.malov@oktetlabs.ru>, "andrew.rybchenko@oktetlabs.ru" <andrew.rybchenko@oktetlabs.ru>, "ferruh.yigit@intel.com" <ferruh.yigit@intel.com>, "mohammad.abdul.awal@intel.com" <mohammad.abdul.awal@intel.com>, "qi.z.zhang@intel.com" <qi.z.zhang@intel.com>, "jerinj@marvell.com" <jerinj@marvell.com>, "ajit.khaparde@broadcom.com" <ajit.khaparde@broadcom.com> Subject: RE: [PATCH v3 01/10] ethdev: introduce flow pre-configuration hints Thread-Topic: [PATCH v3 01/10] ethdev: introduce flow pre-configuration hints Thread-Index: AQHYGwk/Q8L0XhwzAE620pJCvQHT16yIErDg Date: Mon, 7 Feb 2022 13:15:42 +0000 Message-ID: <MW2PR12MB4666F56201A79914FD25EB61D62C9@MW2PR12MB4666.namprd12.prod.outlook.com> References: <20220118153027.3947448-1-akozyrev@nvidia.com> <20220206032526.816079-1-akozyrev@nvidia.com> <20220206032526.816079-2-akozyrev@nvidia.com> In-Reply-To: <20220206032526.816079-2-akozyrev@nvidia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW2PR12MB4666.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7de058f2-016e-4d71-d059-08d9ea3bf14a X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Feb 2022 13:15:42.0568 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: tCOTSe6j/SVTPqNuQBkW3LrELUYoM6Qte7kwEcDZJY7XNDZHu665YFyc8Su0d9XajgHHofz+aAoxeZIQ6LwV8w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB2826 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 Hi Alexander, > -----Original Message----- > From: Alexander Kozyrev <akozyrev@nvidia.com> > Sent: Sunday, February 6, 2022 5:25 AM > Subject: [PATCH v3 01/10] ethdev: introduce flow pre-configuration hints >=20 > The flow rules creation/destruction at a large scale incurs a performance > penalty and may negatively impact the packet processing when used > as part of the datapath logic. This is mainly because software/hardware > resources are allocated and prepared during the flow rule creation. >=20 > In order to optimize the insertion rate, PMD may use some hints provided > by the application at the initialization phase. The rte_flow_configure() > function allows to pre-allocate all the needed resources beforehand. > These resources can be used at a later stage without costly allocations. > Every PMD may use only the subset of hints and ignore unused ones or > fail in case the requested configuration is not supported. >=20 > The rte_flow_info_get() is available to retrieve the information about > supported pre-configurable resources. Both these functions must be called > before any other usage of the flow API engine. >=20 > Signed-off-by: Alexander Kozyrev <akozyrev@nvidia.com> > --- Acked-by: Ori Kam <orika@nvidia.com> Best, Ori