[ovs-dev] [PATCH 0/9] OVN: Support SW gateway in ovn-controller

[Darrell Ball]

The following patch series implements the SW Gateway infrastructure.
The SW gateway runs in the context of ovn-controller as other HVs.
The gateway node uses a single bridge (call it br-int) that is actively controlled by 
OVN. This bridge also houses the tunnels connecting other HVs.
Additional physical bridges are created for each logical switch supported
by the gateway. These bridges act as  simple wires from the POV of >= L2
on br-int and are there to support bonding at a minimum.
A pair of patch ports are created to connect each physical bridge to br-int.

A new logical port type is added for SW gateways called "gw". This is needed
to differentiate logic from HW gateway support. Changes to HW gateway
support are coming in a next series.

patch.c: Physical bridge and patch port creation
physical.c: Support gateway br-int patch ports as "physical" ports

This patch series builds (i.e. depends on) on a previous series supporting physical
endpoints and their binding to logical ports. That series also added some gateway (gw)
logical port checks that this series uses, in the physical.c file

binding.c support the use of physical endpoint for gateway (gw) logical ports

ovn-nb.xml; ovn-sb.xml: document the new "gw" logical port type

ovn-controller.c; patch.h: Add a chassis name parameter needed for gateways
Particular logical port types are not presently specified/enforced in the NB and SB
schemas themselves. This may be to allow flexibility and ease of adding new types.

ovn.at: A new test is added to exercise the SW gateway for L2 switching

Darrell Ball (8):
  Add flow support for gateway patch ports in ovn-controller
  Create SW gateway physical bridges and patch ports
  Add chassis name parameter to support SW gateway in ovn-controller
  Add chassis name parameter to support SW gateway in ovn-controller
  Support physical endpoint based binding for SW gateway logical ports
  Add software gateway logical port type - 'gw'
  Add software gateway logical port type - 'gw'
  Add a test for software gateway using ovn-controller

 ovn/controller/binding.c        |  15 +-
 ovn/controller/ovn-controller.c |   2 +-
 ovn/controller/patch.c          | 134 +++++++++++++++++-
 ovn/controller/patch.h          |   2 +-
 ovn/controller/physical.c       |   5 ++++
 ovn/ovn-nb.xml                  |   4 +
 ovn/ovn-sb.xml                  |   4 ++++
 tests/ovn.at                    | 133 ++++++++++++++++++
 8 files changed, 291 insertions(+), 8 deletions(-)

-- 
1.9.1