Folks, I am new to this nic series and just found a strange issue, i am sure people are using this nic in production with dpdk. # ovs-vsctl add-port br-vlan dpdk-1 -- set Interface dpdk-1 type=dpdk options:dpdk-devargs=0000:3b:00.1 ovs-vsctl: Error detected while setting up 'dpdk-1': Error attaching device '0000:3b:00.1' to DPDK. See ovs-vswitchd log for details. ovs-vsctl: The default log directory is "/var/log/openvswitch". 2021-10-04T13:20:05.751Z|00272|dpdk|ERR|EAL: Driver cannot attach the device (0000:3b:00.1) 2021-10-04T13:20:05.751Z|00273|dpdk|ERR|EAL: Failed to attach device on primary process 2021-10-04T13:20:05.751Z|00274|netdev_dpdk|WARN|Error attaching device '0000:3b:00.1' to DPDK 2021-10-04T13:20:05.751Z|00275|netdev|WARN|dpdk-1: could not set configuration (Invalid argument) 2021-10-04T13:20:05.751Z|00276|dpdk|ERR|Invalid port_id=32 # dpdk-devbind.py -s Network devices using DPDK-compatible driver ============================================ 0000:3b:00.0 'Ethernet Controller 10G X550T 1563' drv=vfio-pci unused=ixgbe 0000:3b:00.1 'Ethernet Controller 10G X550T 1563' drv=vfio-pci unused=ixgbe Network devices using kernel driver =================================== 0000:04:00.0 'NetXtreme BCM5720 2-port Gigabit Ethernet PCIe 165f' if=eno1 drv=tg3 unused=vfio-pci 0000:04:00.1 'NetXtreme BCM5720 2-port Gigabit Ethernet PCIe 165f' if=eno2 drv=tg3 unused=vfio-pci 0000:af:00.0 'Ethernet Controller 10G X550T 1563' if=int1 drv=ixgbe unused=vfio-pci 0000:af:00.1 'Ethernet Controller 10G X550T 1563' if=ext1 drv=ixgbe unused=vfio-pci # ethtool -i ext1 driver: ixgbe version: 5.9.4 firmware-version: 0x800013d1, 20.0.16 expansion-rom-version: bus-info: 0000:af:00.1 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: yes # ovs-vswitchd -V ovs-vswitchd (Open vSwitch) 2.13.3 DPDK 19.11.7 # uname -a Linux ostack-ams-comp-dpdk-1.example.com 5.4.0-86-generic #97-Ubuntu SMP Fri Sep 17 19:19:40 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux