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I have installed OVS from sources using the installation steps mentioned on this link: http://docs.openvswitch.org/en/latest/intro/install/general/ I had installed libvrt, KVM, QEMU and all the necessary packages using apt-get. My KVM-QEMU hypervisor has been running well. To add a VM with the port attached to OVS bridge I changed the XML domain file as per the instructions on this page:

In my Linux VM, I am unable to change scatter-gather / tx-checksumming / TCP-segmentation offload features by ethtool command. I am using virtio nic with vhostuser port backend. It shows me an error: Cannot change tx-checksumming Cannot change scatter-gather Cannot change tcp-segmentation offload Could not change any device features Ony running command ethtool -k ens3, I get the following:

...-users@redhat.com back to the Cc for this response. Please don't remove the list address when responding to postings on a mailing list. A message to the list is *much* more likely to reach someone who knows the answer than is a private message to a single person. On 3/26/19 10:03 AM, Harsh Gondaliya wrote: > Mar 26 19:25:01 dpdk-OptiPlex-5040 libvirtd.service: 20423: error : > virCommandWait:2553 : internal error: Child process (ovs-vsctl > --timeout=5 -- --if-exists del-port vnet0 -- add-port br0 vnet0 -- set > Interface vnet0 'external-ids:attached-mac="52:54:00:90:c6...

I deleted my port virbr0 using brctl command and now when I want to create a virtual network, it gives me this error: Error creating virtual network: failed to run '/usr/sbin/dnsmasq --version': : Success Here is my systemlog: https://pastebin.com/xjuVnsyL How to rectify this? -------------- next part -------------- An HTML attachment was scrubbed... URL:

On 5/3/19 10:19 AM, Harsh Gondaliya wrote: > In my Linux VM, I am unable to change scatter-gather / tx-checksumming / > TCP-segmentation offload features by ethtool command. I am using virtio nic > with vhostuser port backend. > It shows me an error: > Cannot change tx-checksumming > Cannot change scatter-gather &gt...

I am trying to connect a KVM-QEMU VM to OVS-DPDK vhostuser port. But, I am encountering a few errors. Since I am very new to libvrt and Linux I am not able to sort them out. Any guidance in this regard would be a great help. These are my System Logs: Mar 28 18:03:04 dpdk-OptiPlex-5040 libvirtd.service: 1529: debug : virCommandRunAsync:2429 : About to run LIBVIRT_LOG_OUTPUTS=3:stderr

I am trying to turn ON TSO in my Ubuntu Virtual machine but it gives me the following error: [image: image.png] Also on doing *ethtool -k ens3* all the features are marked as [fixed]. How to use libvirt to configure VM to have TSO?