Openvswitch agent should use ovs patch ports instead veths

[Cedric Brandily]

https://bugs.launchpad.net/neutron/+bug/1045613 is no more valid because "patch port support has been added to the upstream Linux kernel OVS implementation" (comment #4). That's why we can use openvswitch patch ports to interconnect br-int to physnets in order to use the same interconnection technology with br-tun and physnets and increase performance (according to http://www.opencloudblog.com/?p=96).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/76685

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/97766

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/97766
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=dc9704255d70fb56e279c108c41d29626eb6bf89
Submitter: Jenkins
Branch: master

commit dc9704255d70fb56e279c108c41d29626eb6bf89
Author: Cedric Brandily <email address hidden>
Date: Wed Jun 4 13:44:18 2014 +0200

    Allow neutron-sanity-check to check OVS patch port support

    This patch allows to check OVS patch port support using:

      neutron-sanity-check --ovs_patch

    or pass in the deployed configuration files with a non-empty
    AGENT/tunnel_types (indeed patch ports are used to interconnect
    br-int and br-tun):

      neutron-sanity-check --config-file ml2.conf.ini

    DocImpact
    Related-Bug: #1285335
    Change-Id: Ic7bfabd1f4b85bfa490dd06c70eb5682ee42a681

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/76685
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=03500414cf463905a28ea30d069630dcfda1d90b
Submitter: Jenkins
Branch: master

commit 03500414cf463905a28ea30d069630dcfda1d90b
Author: Cedric Brandily <email address hidden>
Date: Thu Feb 27 00:00:16 2014 +0100

    Use patch ports to interconnect integration/physical bridges

    Use by default patch ports to interconnect the integration to
    physical bridges for the openvswitch agent in order to increase
    performance.

    For ovs/kernel without ovs patch port support on kernel side, veths
    can be used through the new option OVS.use_veth_interconnection.

    Patch port support can be tested using:

        neutron-sanity-check --ovs_patch

    DocImpact
    Closes-Bug: #1285335
    Change-Id: I47106e57bf5b23891d7bf43815959e0d10156fba