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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SA1PR10MB6517.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: d6b3b5f4-dbcc-476d-fae1-08daaa9630be X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Oct 2022 08:05:26.5360 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: cbnqJJkGx0lkDEnVo2JkIGIcksEazTWt8cfAVLfpRkFHYu2sp8zSIa+G97eJeKTyslmFf3R9349POi3uIM7rpA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN4PR10MB5607 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-10-07_04,2022-10-07_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 malwarescore=0 mlxscore=0 spamscore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210100049 X-Proofpoint-GUID: x3iIv0KZ4XVpLx94BO5b4B88LP6D8ZuU X-Proofpoint-ORIG-GUID: x3iIv0KZ4XVpLx94BO5b4B88LP6D8ZuU 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 Hi Stephen,=20 As Microsoft recommended in the below link to use the failsafe PMD in the A= ZURE. https://learn.microsoft.com/en-us/azure/virtual-network/setup-dpdk#failsafe= -pmd So, we are using the failsafe/tap/vdev_netvsc in AZURE cloud VM's.=20 Question1: Can we use failsafe on top of NETVSC PMD on AZURE ? Question2: Is there any alternatives on Azure cloud ? Question3: If no alternatives, what are the required packages to be install= ed for QDISC ? FYI,=20 Flower, Mirred, Ingress already set in our config. /tmp # cat config | grep FLOW # CONFIG_NF_FLOW_TABLE is not set CONFIG_NET_CLS_FLOW=3Dy CONFIG_NET_CLS_FLOWER=3Dy CONFIG_NET_FLOW_LIMIT=3Dy CONFIG_BNXT_FLOWER_OFFLOAD=3Dy /tmp # cat config | grep INGRESS CONFIG_NET_INGRESS=3Dy CONFIG_NETFILTER_INGRESS=3Dy CONFIG_NET_SCH_INGRESS=3Dy /tmp # cat config | grep MIRRED CONFIG_NET_ACT_MIRRED=3Dy /tmp # cat config | grep MQPRIO # CONFIG_NET_SCH_MQPRIO is not set /tmp # Thanks, Raghava Dattu. -----Original Message----- From: Stephen Hemminger =20 Sent: Thursday, October 6, 2022 10:02 PM To: Dattu Gundu Cc: users@dpdk.org Subject: [External] : Re: qdisc errors on Azure VM (TAP Config) On Thu, 6 Oct 2022 06:08:59 +0000 Dattu Gundu wrote: > Hi, >=20 > I am observing the below errors during the bootup of Azure VM. >=20 > I understand these errors started popping from DPDK 20.11.1 due to=20 > extended ack support was added in Linux version 4.17 And used for diagnos= ing the TAP config in kernel. >=20 > Is it because we are trying to delete the qdisc before they are created ? > And looks like the failure is per queue.=20 >=20 > Am I missing any packages ? >=20 > How to avoid these errors ? > If they are not serious, is there a way to suppress them ? >=20 > net_vdev_netvsc: probably using routed NetVSC interface "s0p0" (index=20 > 7) > tap_nl_dump_ext_ack(): Cannot delete qdisc with handle of zero > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > net_vdev_netvsc: probably using routed NetVSC interface "s1p0" (index=20 > 8) > tap_nl_dump_ext_ack(): Cannot delete qdisc with handle of zero > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid >=20 > Currently using below kernel:=20 > 5.4.17 > x86_64 > GNU/Linux > #3 SMP PREEMPT Thu Aug 18 05:23:39 UTC 2022 >=20 > Thanks, > Raghava Dattu. If possible use netvsc PMD and not the older vdev_netvsc/failsafe/tap stuff= . Are you sure your kernel has all the necessary qdisc to run the failsafe/ta= p device. It needs to have flower, mirred, mqprio, etc.