Hi, We are using the l2fwd based on DPDK 1.7.1 and found out that the link status of the interface using virtio driver is always down. Is there any precondition to let the link up?
# ./pci_unbind.py --status Network devices using IGB_UIO driver ==================================== 0000:00:04.0 'Virtio network device' drv=igb_uio unused= 0000:00:05.0 'Virtio network device' drv=igb_uio unused= Network devices using kernel driver =================================== 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio Other network devices ===================== <none> [root at EIPU-0(KVMCluster) /root] # /root/l2fwd -c 1 -n 1 -- -p 1 ... Port: 0 Link is DOWN PMD: virtio_dev_start(): nb_queues=1 PMD: virtio_dev_start(): Notified backend at initialization PMD: rte_eth_dev_config_restore: port 0: MAC address array not supported PMD: rte_eth_promiscuous_disable: Function not supported PMD: rte_eth_allmulticast_disable: Function not supported done: PMD: rte_eth_promiscuous_enable: Function not supported Port 0, MAC address: FF:FF:00:00:00:00 Skipping disabled port 1 Checking link statusPMD: virtio_dev_link_update(): Get link status from hw PMD: virtio_dev_link_update(): Port 0 is down .PMD: virtio_dev_link_update(): Get link status from hw PMD: virtio_dev_link_update(): Port 0 is down .PMD: virtio_dev_link_update(): Get link status from hw PMD: virtio_dev_link_update(): Port 0 is down ... Brs, Fu Weiyi
