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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: PH0PR11MB4791.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 37ba2fb5-d60f-4f66-8e18-08d99f7c96cd X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Nov 2021 10:19:30.2967 (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: mD0K6klSxx96tkHMiIqFGpgdlhMc6wQ/RAAShSdlB/apArHjs2+ygnRAkjYfbhPlYG4JabjHnX2FzNQcPR1FpQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB5205 X-OriginatorOrg: intel.com 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 >=20 > Hello DPDK users, >=20 > Sorry to disturb. >=20 > I am currently testing net_af_xdp device. > But I found the device configure always failed if I configure my rx queue= !=3D tx > queue. > In my project, I use pipeline mode, and require 1 rx and several tx queue= s. >=20 > Example: > I run my app with paramter: "--no-pci --vdev > net_af_xdp0,iface=3Dens12,queue_count=3D2 --vdev > net_af_xdp1,iface=3Dens13,queue_count=3D2" > And config 1 rx and 2 tx queue, it will setup failed by print: "Port0 > dev_configure =3D -22" >=20 > After checking some xdp docs, I found the rx and tx always bind to use, > which connected to filling and completing ring. > But I still want to comfirm this with you ? Could you please share your > comments ? > Thanks in advance. Hi Christian, Thanks for your question. Yes, at the moment this configuration is forbidde= n for the AF_XDP PMD. One socket is created for each pair of rx and tx queu= es. However maybe this is an unnecessary restriction of the PMD. It is indeed p= ossible to create a socket with either one rxq or one txq. I will put looki= ng into the feasibility of enabling this in the PMD on my backlog. In the meantime, one workaround you could try would be to create an even nu= mber of rxq and txqs but steer all traffic to the first rxq using some NIC = filtering eg. tc. Thanks, Ciara >=20 > Br, > Christian