Hi, I would like to attach one of my ixgbe NIC ports to an OpenVSwitch instance, but I keep getting an unexpected error, see below.
I've successfully bound both my ixgbe NIC ports to DPDK, using VFIO: # tools/dpdk-devbind.py --status Network devices using DPDK-compatible driver ============================================ 0000:01:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=vfio-pci unused=ixgbe 0000:01:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=vfio-pci unused=ixgbe Network devices using kernel driver =================================== 0000:00:19.0 'Ethernet Connection (2) I218-V' if=eno1 drv=e1000e unused=vfio-pci 0000:06:00.0 'RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller' if=enp6s0 drv=r8169 unused=vfio-pci 0000:07:00.0 '82574L Gigabit Network Connection' if=enp7s0 drv=e1000e unused=vfio-pci Other network devices ===================== <none> Crypto devices using DPDK-compatible driver =========================================== <none> Crypto devices using kernel driver ================================== <none> Other crypto devices ==================== <none> Then I created a bridge # ovs-vsctl add-br obr1 -- set bridge obr1 datapath_type=netdev But then when trying to add the dpdk NIC: # ovs-vsctl add-port obr1 dpdk-p0 -- set Interface dpdk-p0 type=dpdk options:dpdk-devargs=0000:01:00.0 the command fails, and I get this in the log: ovs-vswitchd[353]: 2017-04-14T10:54:06Z|00026|bridge|WARN|could not open network device dpdk-p0 (No such device) ovs-vswitchd[353]: ovs|00026|bridge|WARN|could not open network device dpdk-p0 (No such device) Note that I've successfully managed to setup an OVS instance with two DPDK vhost-user ports (each one assigned to a QEMU VM): this is why I'm confident my OVS is built and configured correctly to work with DPDK. Also, DPDK by itself is working as expected, I can use dpdk pktgen. Moreover, OVS log shows that DPDK is recognized [...] ovs|00005|dpdk|INFO|DPDK Enabled, initializing [...] Note that I'm carefully following the documentation here http://docs.openvswitch.org/en/latest/intro/install/dpdk/ and here http://docs.openvswitch.org/en/latest/howto/dpdk/ More info: DPDK version: 16.11 OVS version: 2.6.1, configured with --with-dpdk Host: Archlinux /proc/cmdline: BOOT_IMAGE=../vmlinuz-linux-vfio root=UUID=1c777330-3f00-4ab8-8d5d-d4b2b5d860b0 rw intel_iommu=on hugepages=2048 pci=assign-busses pcie_acs_override=downstream initrd=../initramfs-linux-vfio.img Can anybody help? I'm at a loss here. Thanks, Vincenzo
