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[Bence Romsics <1990842@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Some of our performance sensitive users would like to tweak Open
vSwitch's Tx packet steering option under OpenStack:

    https://docs.openvswitch.org/en/latest/topics/userspace-tx-steering/
    available since Open vSwitch v2.17.0:
        https://github.com/openvswitch/ovs/blob/7af5c33c1629b309cbcbe3b6c9c3bd6d3b4c0abf/NEWS#L103
        https://github.com/openvswitch/ovs/commit/c18e707b2f259438633af5b23df53e1409472871

To enable that, we would like to expose some OVS interface configuration in a Neutron port's binding_profile.
Consider for example:

    openstack port create port0 --binding-profile ovs_other_config=tx-steering:hash ...
    more generally: --binding-profile ovs_other_config=foo:bar,bar:baz
    or an alternative syntax: --binding-profile ovs:other_config='{"foo": "bar", "bar": "baz"}'

Given this information, ovs-agent can set the corresponding OVS
interface's other_config (using the python native interface of course,
not ovs-vsctl):

    sudo ovs-vsctl set Interface ovs-interface-of-port0 other_config:tx-steering=hash
    sudo ovs-vsctl set Interface ovs-interface-of-port0 other_config:foo=bar other_config:bar=baz

** Affects: neutron
     Importance: Wishlist
     Assignee: Bence Romsics (bence-romsics)
         Status: New


** Tags: rfe

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https://bugs.launchpad.net/bugs/1990842

Title:
  RFE Expose Open vSwitch other_config column in the API

Status in neutron:
  New

Bug description:
  Some of our performance sensitive users would like to tweak Open
  vSwitch's Tx packet steering option under OpenStack:

      https://docs.openvswitch.org/en/latest/topics/userspace-tx-steering/
      available since Open vSwitch v2.17.0:
          https://github.com/openvswitch/ovs/blob/7af5c33c1629b309cbcbe3b6c9c3bd6d3b4c0abf/NEWS#L103
          https://github.com/openvswitch/ovs/commit/c18e707b2f259438633af5b23df53e1409472871

  To enable that, we would like to expose some OVS interface configuration in a Neutron port's binding_profile.
  Consider for example:

      openstack port create port0 --binding-profile ovs_other_config=tx-steering:hash ...
      more generally: --binding-profile ovs_other_config=foo:bar,bar:baz
      or an alternative syntax: --binding-profile ovs:other_config='{"foo": "bar", "bar": "baz"}'

  Given this information, ovs-agent can set the corresponding OVS
  interface's other_config (using the python native interface of course,
  not ovs-vsctl):

      sudo ovs-vsctl set Interface ovs-interface-of-port0 other_config:tx-steering=hash
      sudo ovs-vsctl set Interface ovs-interface-of-port0 other_config:foo=bar other_config:bar=baz

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