Hi, I'm testing DPDK on virtio device using a Linux VM (ubuntu 21.04) from google cloud. But I couldn't get it to work. I wonder 1. Is "no modern virtio pci device found." expected? 2. Should I use vfio-pci, instead uio_pci_generic? 3. maybe on the public cloud, promiscuous mode is not allowed? so "virtio_dev_promiscuous_enable(): host does not support rx control"
Below are my steps, thanks in advance: $ clone the latest dpdk, commit bfd3c352eb9 $modprobe uio_pci_generic $ ./usertools/dpdk-devbind.py -u 00:05.0 $ ./usertools/dpdk-devbind.py -b uio_pci_generic 00:05.0 $ ./usertools/dpdk-devbind.py -s Network devices using DPDK-compatible driver ============================================ 0000:00:05.0 'Virtio network device 1000' drv=uio_pci_generic unused=vfio-pci ... $ dpdk-hugepages.py --setup 1G $ meson build; ninja -C build $ ./build/app/dpdk-testpmd EAL: Detected 4 lcore(s) EAL: Detected 1 NUMA nodes EAL: Detected static linkage of DPDK EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Selected IOVA mode 'PA' EAL: No available 1048576 kB hugepages reported EAL: VFIO support initialized EAL: PCI device 0000:00:05.0 on NUMA socket -1 EAL: probe driver: 1af4:1000 net_virtio EAL: Probe PCI driver: net_virtio (1af4:1000) device: 0000:00:05.0 (socket 0) EAL: PCI memory mapped at 0x1100800000 virtio_read_caps(): [80] skipping non VNDR cap id: 11 virtio_read_caps(): no modern virtio pci device found. vtpci_init(): trying with legacy virtio pci. EAL: pci_uio_ioport_map(): PIO BAR 0000c000 detected EAL: PCI Port IO found start=0xc000 virtio_ethdev_negotiate_features(): guest_features before negotiate = 8000005f10ef8028 virtio_ethdev_negotiate_features(): host_features before negotiate = 204399a7 virtio_ethdev_negotiate_features(): features after negotiate = 438020 virtio_init_device(): PORT MAC: 42:01:0A:01:01:05 virtio_init_device(): link speed = -1, duplex = 1 virtio_init_device(): config->max_virtqueue_pairs=1 virtio_init_device(): config->status=1 virtio_init_device(): PORT MAC: 42:01:0A:01:01:05 virtio_init_queue(): setting up queue: 0 on NUMA node 0 virtio_init_queue(): vq_size: 4096 virtio_init_queue(): vring_size: 110596, rounded_vring_size: 114688 virtio_init_queue(): vq->vq_ring_mem: 0x1b3b84000 virtio_init_queue(): vq->vq_ring_virt_mem: 0x100384000 virtio_init_vring(): >> virtio_init_queue(): setting up queue: 1 on NUMA node 0 virtio_init_queue(): vq_size: 4096 virtio_init_queue(): vring_size: 110596, rounded_vring_size: 114688 virtio_init_queue(): vq->vq_ring_mem: 0x1b3b4f000 virtio_init_queue(): vq->vq_ring_virt_mem: 0x10034f000 virtio_init_vring(): >> virtio_init_queue(): setting up queue: 2 on NUMA node 0 virtio_init_queue(): vq_size: 64 virtio_init_queue(): vring_size: 4612, rounded_vring_size: 8192 virtio_init_queue(): vq->vq_ring_mem: 0x1b3abc000 virtio_init_queue(): vq->vq_ring_virt_mem: 0x1002bc000 virtio_init_vring(): >> eth_virtio_pci_init(): port 0 vendorID=0x1af4 deviceID=0x1000 ... virtio_dev_configure(): configure virtio_dev_tx_queue_setup(): >> virtio_dev_rx_queue_setup(): >> virtio_dev_rx_queue_setup_finish(): >> virtio_dev_rx_queue_setup_finish(): Allocated 512 bufs virtio_dev_tx_queue_setup_finish(): >> virtio_dev_start(): nb_queues=1 virtio_dev_start(): Notified backend at initialization set_rxtx_funcs(): virtio: using standard Tx path on port 0 set_rxtx_funcs(): virtio: using mergeable buffer Rx path on port 0 virtio_dev_link_update(): Get link status from hw virtio_dev_link_update(): Port 0 is up virtio_dev_promiscuous_disable(): host does not support rx control virtio_dev_allmulticast_disable(): host does not support rx control Configuring Port 0 (socket 0) Port 0: 42:01:0A:01:01:05 Checking link statuses... virtio_dev_promiscuous_enable(): host does not support rx control Error during enabling promiscuous mode for port 0: Operation not supported - ignore --- lspci -vv 00:05.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device [1af4:1000] Subsystem: Red Hat, Inc. Virtio network device [1af4:0001] Physical Slot: 5 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx+ Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c000 [size=64] Region 1: Memory at c0002000 (32-bit, non-prefetchable) [size=64] Capabilities: [80] MSI-X: Enable- Count=3 Masked- Vector table: BAR=1 offset=00000008 PBA: BAR=1 offset=00000000 Kernel driver in use: uio_pci_generic lspci -xx 00:05.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device [1af4:1000] 00: f4 1a 00 10 13 04 18 00 00 00 00 02 00 00 00 00 10: 01 c0 00 00 00 20 00 c0 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 f4 1a 01 00 30: 00 00 00 00 80 00 00 00 00 00 00 00 0a 01 00 00 ... all zero 80: 11 00 02 00 09 00 00 00 01 00 00 00 00 00 00 00
