linux vm dpdk test error "hn_vf_add(): RNDIS reports VF but device not found, retrying"
I built a customized linux vm, when I run dpdk test with dpdk-testpmd, it shows error as
"hn_vf_attach(): Couldn't find port for VF
hn_vf_add(): RNDIS reports VF but device not found, retrying"
the full log as below.
app/dpdk-testpmd -l 1-3 --vdev="$BUS_INFO,mac=$MANA_MAC" -- --forward-mode=txonly --auto-start --txd=128 --rxd=128 --stats 2
EAL: Detected CPU lcores: 8
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Probe PCI driver: mlx5_pci (15b3:1016) device: deed:00:02.0 (socket 0)
mlx5_common: DevX read access NIC register=0X9055 failed errno=22 status=0 syndrome=0
mlx5_net: No available register for sampler.
mlx5_common: DevX create q counter set failed errno=22 status=0 syndrome=0
mlx5_common: Key "mac" is unknown for the provided classes.
EAL: Requested device deed:00:02.0 cannot be used
EAL: Bus (pci) probe failed.
hn_vf_attach(): Couldn't find port for VF
hn_vf_add(): RNDIS reports VF but device not found, retrying
TELEMETRY: No legacy callbacks, legacy socket not created
Set txonly packet forwarding mode
Auto-start selected
testpmd: create a new mbuf pool <mb_pool_0>: n=163456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Warning! port-topology=paired and odd forward ports number, the last port will pair with itself.
Configuring Port 0 (socket 0)
hn_vf_attach(): Couldn't find port for VF
hn_vf_add(): RNDIS reports VF but device not found, retrying
Port 0: 00:0D:3A:34:69:DA
Checking link statuses...
Done
No commandline core given, start packet forwarding
txonly packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support enabled, MP allocation mode: native
Logical Core 2 (socket 0) forwards packets on 1 streams:
RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
txonly packet forwarding packets/burst=32
packet len=64 - nb packet segments=1
nb forwarding cores=1 - nb forwarding ports=1
port 0: RX queue number: 1 Tx queue number: 1
Rx offloads=0x0 Tx offloads=0x0
RX queue: 0
RX desc=128 - RX free threshold=0
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
RX Offloads=0x0
TX queue: 0
TX desc=128 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX offloads=0x0 - TX RS bit threshold=0
Port statistics ====================================
######################## NIC statistics for port 0 ########################
RX-packets: 0 RX-missed: 0 RX-bytes: 0
RX-errors: 0
RX-nombuf: 0
TX-packets: 0 TX-errors: 0 TX-bytes: 0
Throughput (since last show)
Rx-pps: 0 Rx-bps: 0
Tx-pps: 0 Tx-bps: 0
############################################################################
hn_vf_attach(): Couldn't find port for VF
hn_vf_add(): RNDIS reports VF but device not found, retrying
hn_vf_attach(): Couldn't find port for VF
hn_vf_add(): RNDIS reports VF but device not found, retrying
**
dmesg log as:
[ 6.151804] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s0: link becomes ready
[ 8.609137] mlx5_core 75d3:00:02.0 enP30163s1: Disabling LRO, not supported in legacy RQ
[ 8.610859] mlx5_core 75d3:00:02.0 enP30163s1: Disabling LRO, not supported in legacy RQ
[ 8.612864] mlx5_core 75d3:00:02.0 enP30163s1: Disabling LRO, not supported in legacy RQ
[ 8.613831] mlx5_core 75d3:00:02.0 enP30163s1: Disabling LRO, not supported in legacy RQ
[ 8.821302] loop0: detected capacity change from 0 to 8
[ 8.842848] mlx5_core 80bc:00:02.0 enP32956s2: Disabling LRO, not supported in legacy RQ
[ 8.844700] mlx5_core 80bc:00:02.0 enP32956s2: Disabling LRO, not supported in legacy RQ
[ 8.847495] mlx5_core 80bc:00:02.0 enP32956s2: Disabling LRO, not supported in legacy RQ
[ 8.849066] mlx5_core 80bc:00:02.0 enP32956s2: Disabling LRO, not supported in legacy RQ
[ 9.035447] kauditd_printk_skb: 3 callbacks suppressed
[ 9.035451] audit: type=1400 audit(1738022329.631:14): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/snapd/snap-confine" pid=1035 comm="apparmor_parser"
[ 9.064196] audit: type=1400 audit(1738022329.659:15): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/snapd/snap-confine//mount-namespace-capture-helper" pid=1035 comm="apparmor_parser"
[ 9.067151] mlx5_core deed:00:02.0 enP57069s3: Disabling LRO, not supported in legacy RQ
[ 9.068993] mlx5_core deed:00:02.0 enP57069s3: Disabling LRO, not supported in legacy RQ
[ 9.071117] mlx5_core deed:00:02.0 enP57069s3: Disabling LRO, not supported in legacy RQ
[ 9.072348] mlx5_core deed:00:02.0 enP57069s3: Disabling LRO, not supported in legacy RQ
[ 10.017708] fbcon: Taking over console
[ 10.017853] Console: switching to colour frame buffer device 128x48
[ 51.026576] hv_balloon: Max. dynamic memory size: 32768 MB
[ 534.610255] RPC: Registered named UNIX socket transport module.
[ 534.610260] RPC: Registered udp transport module.
[ 534.610261] RPC: Registered tcp transport module.
[ 534.610261] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 535.082260] RPC: Registered rdma transport module.
[ 535.082264] RPC: Registered rdma backchannel transport module.
[ 1115.762368] hv_netvsc 000d3a34-69da-000d-3a34-69da000d3a34 enp2s2: Data path switched from VF: enP57069s3
[ 1115.825184] hv_vmbus: registering driver uio_hv_generic
[ 1115.825710] hv_netvsc 000d3a34-69da-000d-3a34-69da000d3a34 enp2s2: VF unregistering: enP57069s3
[ 1115.825719] mlx5_core deed:00:02.0 enP57069s3: Disabling LRO, not supported in legacy RQ
[ 1164.343188] mlx5_core deed:00:02.0 enP57069s3: Link up