Combined Physical-Logical Separation and L2 SW Gateway patches
due to dependencies.
The following patch series implements physical-logical separation
to be used presently by gateways and localnet.
The patch series also includes L2 SW Gateway support which depends on the
physical-logical separation changes.
The physical logical separation changes allow the physical network to be
managed more easily by a dedicated CMS or CMS function and also allow
the northbound schema to remain purely logical.
Another benefit to allow more easily for additional encapsulations to be
used when interacting with physical provider networks.
The gateway changes in this patch series are for SW gateways only, as
HW gateways will be updated later.
Physical endpoints are defined here as endpoints at the border of a physical
network.
This presently applies to localnet and gateways.
For localnet physical endpoints, chassis name and chassis port can be supplied
as
dummy arguments or omitted. This is useful if the same localnet logical port is
distributed across multiple chassis. If chassis and port are omitted, the same
encapsulation on all HVs of a given localnet is implied and a single logical
port
should be used. Then the physical endpoint is bound to the localnet logical
port.
If multiple encapsulations are needed, multiple physical endpoints would be
defined
and bound to separate localnet logical ports.
If no physical endpt is bound to a localnet, the encap is assumed empty.
Note that physical location information for localnet ports can also serve just
for administrative purposes as well.
For gateways, a single physical endpoint must be bound to each logical port.
The chassis name must match the chassis system-id. All 6 arguments should
be supplied for gateway physical endpoints configuration.
The specific changes are:
ovn-sb.ovsschema: Add physical endpoint table and phys_endpts to logical ports
ovn-sb.xml: Update documentation regarding physical endpoints and their
binding to logical ports. Also describe possible future encapsulation type
usages.
Document the new "gw" logical port type
ovn-sbctl.c: Add configuration for physcial endpoints and binding to logical
ports.
ovn-sbctl.8.in: Update the ovn-sbctl man page for physical endpoints and binding
to logical ports.
The second part of the patch series supporting SW gateways also uses physical
endpoints.
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 physical port supported
by the gateway. These bridges enforce normal action only by default.
A pair of patch ports are created to connect each LS 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 subsequent series.
patch.c: Physical bridge and patch port creation
physical.c: Add SW gateway flow generation support, including physical endpoint
support and update localnet flow generation to use physical endpoints.
Support gateway br-int patch ports as "physical" ports
binding.c support the use of physical endpoint for gateway (gw) logical ports
ovn-nb.xml: document the new "gw" logical port type
remove tag field for localnet under container support
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.
Test case updates:
ovn.at: A new test is added to exercise the SW gateway for L2 switching and also
using physical endpoints.
The localnet test case is updated to use physical endpoints.
v1->v2: Fix physical bridge creation logic and update based on RFC patch
series review
Darrell Ball (1):
[Patch V2] OVN: Logical-Physical Separation and L2 SW Gateways
ovn/controller/binding.c | 15 +-
ovn/controller/ovn-controller.c | 2 +-
ovn/controller/patch.c | 135 +++++++++++++++++-
ovn/controller/patch.h | 2 +-
ovn/controller/physical.c | 47 ++++++-
ovn/ovn-nb.xml | 11 +-
ovn/ovn-sb.ovsschema | 23 +++-
ovn/ovn-sb.xml | 92 ++++++++++++-
ovn/utilities/ovn-sbctl.8.in | 48 +++++++
ovn/utilities/ovn-sbctl.c | 295 +++++++++++++++++++++++++++++++++++++++-
tests/ovn.at | 135 ++++++++++++++++++
11 files changed, 774 insertions(+), 31 deletions(-)
--
1.9.1
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