From: Dattu Gundu <dattu.gundu@oracle.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "users@dpdk.org" <users@dpdk.org>
Subject: RE: [External] : Re: qdisc errors on Azure VM (TAP Config)
Date: Mon, 10 Oct 2022 08:05:26 +0000 [thread overview]
Message-ID: <SA1PR10MB6517020469B94E8D2519DD3890209@SA1PR10MB6517.namprd10.prod.outlook.com> (raw)
In-Reply-To: <20221006093130.544efb26@hermes.local>
Hi Stephen,
As Microsoft recommended in the below link to use the failsafe PMD in the AZURE.
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.
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 installed for QDISC ?
FYI,
Flower, Mirred, Ingress already set in our config.
/tmp # cat config | grep FLOW
# CONFIG_NF_FLOW_TABLE is not set
CONFIG_NET_CLS_FLOW=y
CONFIG_NET_CLS_FLOWER=y
CONFIG_NET_FLOW_LIMIT=y
CONFIG_BNXT_FLOWER_OFFLOAD=y
/tmp # cat config | grep INGRESS
CONFIG_NET_INGRESS=y
CONFIG_NETFILTER_INGRESS=y
CONFIG_NET_SCH_INGRESS=y
/tmp # cat config | grep MIRRED
CONFIG_NET_ACT_MIRRED=y
/tmp # cat config | grep MQPRIO
# CONFIG_NET_SCH_MQPRIO is not set
/tmp #
Thanks,
Raghava Dattu.
-----Original Message-----
From: Stephen Hemminger <stephen@networkplumber.org>
Sent: Thursday, October 6, 2022 10:02 PM
To: Dattu Gundu <dattu.gundu@oracle.com>
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 <dattu.gundu@oracle.com> wrote:
> Hi,
>
> I am observing the below errors during the bootup of Azure VM.
>
> I understand these errors started popping from DPDK 20.11.1 due to
> extended ack support was added in Linux version 4.17 And used for diagnosing the TAP config in kernel.
>
> Is it because we are trying to delete the qdisc before they are created ?
> And looks like the failure is per queue.
>
> Am I missing any packages ?
>
> How to avoid these errors ?
> If they are not serious, is there a way to suppress them ?
>
> net_vdev_netvsc: probably using routed NetVSC interface "s0p0" (index
> 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
> 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
>
> Currently using below kernel:
> 5.4.17
> x86_64
> GNU/Linux
> #3 SMP PREEMPT Thu Aug 18 05:23:39 UTC 2022
>
> 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/tap device. It needs to have flower, mirred, mqprio, etc.
next prev parent reply other threads:[~2022-10-10 8:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-06 6:08 Dattu Gundu
2022-10-06 16:31 ` Stephen Hemminger
2022-10-10 8:05 ` Dattu Gundu [this message]
2022-10-10 14:56 ` [External] : " Stephen Hemminger
2022-10-12 11:14 ` Dattu Gundu
2022-10-12 17:11 ` Stephen Hemminger
2022-10-17 9:13 ` Dattu Gundu
2022-10-17 15:01 ` Stephen Hemminger
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