Public bug reported: We are going to implement packet rate limit on ovs bridge by using meter rules [1], at the same time, meter can also be used to limit the bandwidth. os-key(ryu) supports the rule types of OFPMF_KBPS [2]. And usually, some smart-NICs for ovs offloading will support offloading meter rule to NIC to save the QoS cost of CPU on hosts naturally.
Since TC rules can be offloaded to smart-NIC as well. So this is an alternative to make the implementation of QoS limitation in a consistent mechanism. thought? [1] https://review.opendev.org/c/openstack/neutron/+/816800/8/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/br_int.py [2] https://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPMeterMod ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1964342 Title: [QoS][OvS] implement QoS bandwidth limitation by leveraging ovs meter Status in neutron: New Bug description: We are going to implement packet rate limit on ovs bridge by using meter rules [1], at the same time, meter can also be used to limit the bandwidth. os-key(ryu) supports the rule types of OFPMF_KBPS [2]. And usually, some smart-NICs for ovs offloading will support offloading meter rule to NIC to save the QoS cost of CPU on hosts naturally. Since TC rules can be offloaded to smart-NIC as well. So this is an alternative to make the implementation of QoS limitation in a consistent mechanism. thought? [1] https://review.opendev.org/c/openstack/neutron/+/816800/8/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/br_int.py [2] https://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPMeterMod To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1964342/+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
