Sunil is using dpdk vmxnet3 driver. So he doesn’t need to load VPP native
vmxnet3 plugin. Gdb dpdk code to see why it returns -22 when VPP adds the NIC
to dpdk.
rte_eth_dev_start[port:1, errno:-22]: Unknown error -22
Steven
From: <[email protected]> on behalf of Guangming <[email protected]>
Reply-To: "[email protected]" <[email protected]>
Date: Friday, February 17, 2023 at 6:55 AM
To: vpp-dev <[email protected]>, sunil61090 <[email protected]>
Subject: Re: [vpp-dev] VPP Hardware Interface Output show Carrier Down
you can use vppctl show log to display more startup meesage.
VMXNET3 need load vmxnet3_plugin.so.
________________________________
[email protected]
From: sunil kumar<mailto:[email protected]>
Date: 2023-02-17 21:46
To: vpp-dev<mailto:[email protected]>
Subject: [vpp-dev] VPP Hardware Interface Output show Carrier Down
Hi,
We are observing the state of the vpp interface as carrier down in command
vppctl show hardware output. This is observed while starting the vpp:
vppctl show hardware output:
==========================
device_c/0/0 2 down device_c/0/0
Link speed: 10 Gbps
Ethernet address 00:50:56:01:5c:63
VMware VMXNET3
carrier down
flags: admin-up pmd rx-ip4-cksum
rx: queues 2 (max 16), desc 4096 (min 128 max 4096 align 1)
tx: queues 2 (max 8), desc 4096 (min 512 max 4096 align 1)
pci: device 15ad:07b0 subsystem 15ad:07b0 address 0000:0c:00.00 numa 0
max rx packet len: 16384
promiscuous: unicast off all-multicast off
vlan offload: strip off filter off qinq off
rx offload avail: vlan-strip ipv4-cksum udp-cksum tcp-cksum tcp-lro
vlan-filter jumbo-frame scatter
rx offload active: ipv4-cksum
tx offload avail: vlan-insert ipv4-cksum udp-cksum tcp-cksum tcp-tso
multi-segs
tx offload active: multi-segs
rss avail: ipv4-tcp ipv4 ipv6-tcp ipv6
rss active: none
tx burst function: vmxnet3_xmit_pkts
rx burst function: vmxnet3_recv_pkts
Errors:
rte_eth_dev_start[port:1, errno:-22]: Unknown error -22
We are suspecting the following reasons:
1) Any issue with vfio-pci driver while unloading and loading again?
2) Any corruption is happening during initialization?
I am attaching the startup.conf and vppctl command output files with this mail:
Can anybody suggest a way to resolve this issue?
Thanks,
Sunil Kumar
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