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Mon, 5 Apr 2021 03:10:21 +0000 From: "Joshi, Venkatesh" To: "users@dpdk.org" Thread-Topic: Ref: Excluding certain Rx Queues from the RSS hashing algorithm Thread-Index: AdcpyQ3J6PtnfH4yQG6WK+gz/WcvIw== Date: Mon, 5 Apr 2021 03:10:21 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dpdk.org; dkim=none (message not signed) header.d=none;dpdk.org; dmarc=none action=none header.from=hpe.com; x-originating-ip: [49.207.206.77] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 9a9c4dda-b615-47a4-aaa2-08d8f7e0592b x-ms-traffictypediagnostic: TU4PR8401MB0656: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TU4PR8401MB0479.NAMPRD84.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: 9a9c4dda-b615-47a4-aaa2-08d8f7e0592b X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Apr 2021 03:10:21.2414 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 105b2061-b669-4b31-92ac-24d304d195dc X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: vS43RM1/Jkisqlovz0w1UCLA59axNAk95s+EpW7sZ4HORgN0J6DmjZv9l0q6hGJiNzoP2qGmTADIB/D+aOg3Pw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: TU4PR8401MB0656 X-OriginatorOrg: hpe.com X-Proofpoint-GUID: QiLqo-o4GTXfa6E_4gSlH4cZcNpNBu64 X-Proofpoint-ORIG-GUID: QiLqo-o4GTXfa6E_4gSlH4cZcNpNBu64 X-HPE-SCL: -1 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.761 definitions=2021-04-05_02:2021-04-01, 2021-04-05 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 clxscore=1011 mlxscore=0 spamscore=0 impostorscore=0 mlxlogscore=449 phishscore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104030000 definitions=main-2104050021 Subject: [dpdk-users] Ref: Excluding certain Rx Queues from the RSS hashing algorithm X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org Sender: "users" Hi, We use the following hardware/software in our product: * CPU: Intel Xeon Silver 4210 * NIC: XXV710-AM2 * NIC Firmware: 7.3/8.0 * Linux Kernel version: 4.14 * DPDK version: 20.08 * vfio-pci driver Our DPDK application runs on 7 CPU threads. We have initialized 7 Rx Queues= - one for each CPU thread. We want to use one of the queues exclusively for traffic that matches Flow = Director rules. And, we want that when the RSS hashing algorithm provides action as Enqueue= - it should not use that queue during its computation. Example: We initialize Rx Queues 0 to 6. Out of this, we want that Rx Queue 0 to 5 be used in the RSS hash algorithm= when the action is enqueue. Rx Queue 6 should be kept out of the RSS hashing logic. This is wrt the i40e driver. Is this possible? regards, venkatesh