Hi John,
Are you using a stock build of VPP from packagecloud or did you build your
own? VPP's build of DPDK does not enable the Mellanox (mlx4, mlx5) PMDs by
default. If you didn't already, you would need to build VPP with the
environment variables DPDK_MLX4_PMD, DPDK_MLX5_PMD, and
DPDK_MLX_COMMON_PMD set to y. You could change the default values from n to
y in build/external/packages/dpdk.mk or you could run something like 'make
DPDK_MLX4_PMD=y DPDK_MLX5_PMD=y DPDK_MLX_COMMON_PMD=y pkg-deb'. That
presumes that you're running on ubuntu or some other debian-based distro,
if you're running some other OS maybe substituting pkg-snap or pkg-rpm for
the pkg-deb in that command would work for you.
-Matt
On Fri, Apr 29, 2022 at 2:40 PM Johnny Martinez <john.marti...@gmail.com>
wrote:
> Johnny Martinez <john.marti...@gmail.com>
> 9:57 AM (5 hours ago)
> to Benoit
> *@Ben *- thank you *VERY *much for the detailed response!
>
> I had *partial *success but almost there - now I am seeing some DPDK
> errors and other behavior outlined below.
>
> On my test device I have 3 interfaces:
>
> - Management interface (kernel interface, not managed by VPP)
> - vpp-wan interface
> - vpp-lan interface
>
> I configureD the interfaces with the following:
>
> set logging class linux-cp rate-limit 1000 level warn syslog-level notice
>
>
> lcp default netns dataplane
>
> lcp lcp-sync on
>
> lcp lcp-auto-subint on
>
>
> # vpp-wan
>
> vpp# lcp create NetVSC1 host-if vpp-wan
>
> vpp# set int state NetVSC1 up
>
> vpp# set int ip address NetVSC1 10.0.2.4/24
>
> vpp# ip route add 0.0.0.0/0 via 10.0.2.1
>
>
> # vpp-lan
>
> vpp# lcp create NetVSC0 host-if vpp-lan
>
> vpp# set int state NetVSC0 up
>
> vpp# set int ip address NetVSC0 10.0.1.4/24
>
>
> I am now able to see the two interfaces in vpp *HOWEVER *I am not able to
> set the MTU size on either interface to 1500.
>
> vpp# set int mtu 1500 NetVSC0
> set interface mtu: Unsupported (dpdk driver doesn't support MTU change)
> vpp# set int mtu 1500 NetVSC1
> set interface mtu: Unsupported (dpdk driver doesn't support MTU change)
>
>
> I see the following in the log files using '*journalctl | grep dpdk*' -
> we get two seperate DPDK errors. *One seems to be interface specific and
> the other when we try to set the MTU size*.
>
> The *orange *error is every second - whereas the MTU error is only when
> we try to set the MTU size.
>
> *Apr 29 12:55:15 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_add(): RNDIS
> reports VF but device not found, retrying*
>
> *Apr 29 12:55:16 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_attach():
> Couldn't find port for VF*
>
> *Apr 29 12:55:16 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_add(): RNDIS
> reports VF but device not found, retrying*
>
> *Apr 29 12:55:16 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_attach():
> Couldn't find port for VF*
>
> *Apr 29 12:55:16 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_add(): RNDIS
> reports VF but device not found, retrying*
>
> *Apr 29 12:55:16 azure-demo-node-001.vnet[2409]: dpdk: [0]
> rte_eth_dev_set_mtu failed (mtu 1496, rv -95)*
>
> *Apr 29 12:55:16 azure-demo-node-001.vnet[2409]: set interface mtu:
> Unsupported (dpdk driver doesn't support MTU change*
>
> *Apr 29 12:55:17 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_attach():
> Couldn't find port for VF*
>
> *Apr 29 12:55:17 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_add(): RNDIS
> reports VF but device not found, retrying*
>
> *Apr 29 12:55:17 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_attach():
> Couldn't find port for VF*
>
> *Apr 29 12:55:17 azure-demo-node-001.vnet[2409]: dpdk: hn_vf_add(): RNDIS
> reports VF but device not found, retrying*
>
>
> Anyone have any recommendation on how to resolve this?
>
> *I have also tried setting dev XXX and vdev commands in the dpdk{} block,
> but this causes the virtual interfaces not to be found (as you have
> previously mentioned).*
>
> *Thank you all in advance for your assistance!*
>
> --
> John M
>
>
> On Fri, Apr 29, 2022 at 2:40 PM Matthew Smith <mgsm...@netgate.com> wrote:
>
>> Hi Ben,
>>
>> Sure, I'll work on an update to the doc.
>>
>> -Matt
>>
>>
>> On Fri, Apr 29, 2022 at 3:48 AM Benoit Ganne (bganne) <bga...@cisco.com>
>> wrote:
>>
>>> Hi Matt, John,
>>>
>>> This is a great summary!
>>>
>>> >> The only reference I could find for VPP in Azure was in this link
>>> >> but it is very outdated:
>>> >> https://fd.io/docs/vpp/v2101/usecases/vppinazure.html
>>>
>>> > Yes, that doc is way outdated. I advise against following the
>>> instructions
>>> > in it.
>>>
>>> Matt or John, would you mind proposing a patch for that? Even a quick &
>>> dirty "here are the steps you need to follow" would be great.
>>>
>>> Best
>>> ben
>>>
>>
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