[ovs-discuss] Generic Netlink family 'ovs_datapath' does not exist - could not open network device dpdk0

[Vivek Gupta]

Hi I am trying  to add a port in OVS bridge by following command as below- ovs-vsctl add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk but I get error message as below- |00018|dpif_netlink|ERR|Generic Netlink family 'ovs_datapath' does not exist. The Open vSwitch kernel module is probably not loaded. |00019|bridge|INFO|bridge br0: using datapath ID 0000ae4edb87d04f |00020|connmgr|INFO|br0: added service controller "punix:/usr/local/var/run/openvswitch/br0.mgmt" |00021|bridge|WARN|could not open network device dpdk0 (No such device) |00022|memory|INFO|peak resident set size grew 160% in last 10.0 seconds, from 6812 kB to 17716 kB |00023|memory|INFO|handlers:17 ports:1 revalidators:7 rules:5 |00024|bridge|WARN|could not open network device dpdk0 (No such device) As per my understanding Not to worry for "Generic Netlink family error" because I am building OVS in user space and not in kernel space. Please correct me if I am wrong. Question#1->I am much more concerned about adding of port to OVS bridge. Why port dpdk0  is not being added to bridge? Please find output of dpdk_nic_bind.py script- ./tools/dpdk_nic_bind.py --status Network devices using DPDK-compatible driver ============================================ <none> Network devices using kernel driver =================================== 0000:01:00.0 'Ethernet Controller 10-Gigabit X540-AT2' if=eth0 drv=ixgbe unused=igb_uio,uio_pci_generic 0000:01:00.1 'Ethernet Controller 10-Gigabit X540-AT2' if=eth1 drv=ixgbe unused=igb_uio,uio_pci_generic 0000:06:00.0 'Ethernet Controller 10-Gigabit X540-AT2' if=eth2 drv=ixgbe unused=igb_uio,uio_pci_generic 0000:06:00.1 'Ethernet Controller 10-Gigabit X540-AT2' if=eth3 drv=ixgbe unused=igb_uio,uio_pci_generic 0000:81:00.0 'Ethernet Controller 10-Gigabit X540-AT2' if=eth4 drv=ixgbe unused=igb_uio,uio_pci_generic 0000:81:00.1 'Ethernet Controller 10-Gigabit X540-AT2' if=eth5 drv=ixgbe unused=igb_uio,uio_pci_generic Other network devices ===================== <none> Question#2-> Only DPDK compaitable driver network devices  should be used in place of dpdk0? Thanks & regards Vivek ::DISCLAIMER:: ---------------------------------------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. ----------------------------------------------------------------------------------------------------------------------------------------------------

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