Okay, on IRC today, stephenfin reminded me that upstream, the configurable RX/TX Queue Size code is new in Rocky, but that OSP backported it all the way back to Newton. That's why Moshe is seeing the feature code in OSP10-OSP13.
So, indeed upstream this bug is a regression in Rocky, and will have to be backported to stable/rocky. ** Changed in: nova Importance: Undecided => High ** Also affects: nova/rocky Importance: Undecided Status: New ** Changed in: nova/rocky Importance: Undecided => High -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1789074 Title: failed to boot guest with vnic_type direct when rx_queue_size and tx_queue_size are set Status in OpenStack Compute (nova): In Progress Status in OpenStack Compute (nova) rocky series: New Bug description: Description of problem: Nova compute forces the virtio RX/TX Queue Size also on SRIOV devices. This makes VM spawn to fail. The configurable RX/TX Queue Size code is similar all the way from OSP10 to OSP13, so it's possible the issue is present also on other releases. Version-Release number of selected component (if applicable): OSP13 z3 How reproducible: (quick and dirty way) Change nova config file # crudini --set /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf libvirt rx_queue_size 1024 # crudini --set /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf libvirt tx_queue_size 1024 # restart nova_compute container docker restart nova_compute # boot a VM with an SRIOV (PF or VF) interface Actual results: Nova add on the sriov port section rx_queue_size <interface type="hostdev" managed="yes"> <mac address="fa:16:3e:9d:f0:52"/> <driver name="vhost" rx_queue_size="1024"/> <source> <address type="pci" domain="0x0000" bus="0x01" slot="0x14" function="0x7"/> </source> <vlan> <tag id="435"/> </vlan> Expected results: <interface type='hostdev' managed='yes'> <mac address='fa:16:3e:83:b2:84'/> <driver name='vfio'/> <source> <address type='pci' domain='0x0000' bus='0x01' slot='0x14' function='0x7'/> </source> <vlan> <tag id='435'/> </vlan> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </interface> Additional info: To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1789074/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp