The timestamp refresh mechanism is based on separate table. The new thread will collect flow statistics from this table and based on "idle_age" data we can decide whether we should bump the timestamp (MAC binding/FDB still in use) or keep it as is.
The timestamp refresh mechanism works only if the MAC bindingi or FDB aging is activated, so ovn-controller doesn't do anything otherwise. To prevent a lot of updates of timestamp happening concurrently the flow dump period is set to 3/4 of aging thresholdi, and we do update only rows which have the timestamp older than the dump period. Another thing to note is that the thread is purposely made somewhat generic, there is an idea to reuse it for packet statistics on logical ports. Which should be fairly easy to do in its current form. There isn't any test case yet, it will be in the official patch iteration. It was tested manually for now. Ales Musil (8): actions: Add mac_cache_use action northd, controller: Use the MAC cache table northd: Synchronize the MAC binding age threshold controller: Add MAC cache I-P node controller: Update MAC binding timestamp northd: Synchronize the FDB age threshold controller: Add FDB support to MAC cache I-P node controller: Update FDB timestamp controller/automake.mk | 6 +- controller/lflow.c | 22 ++ controller/lflow.h | 1 + controller/mac_cache.c | 547 ++++++++++++++++++++++++++++++++++++ controller/mac_cache.h | 124 ++++++++ controller/ovn-controller.c | 347 +++++++++++++++++++++++ controller/statctrl.c | 446 +++++++++++++++++++++++++++++ controller/statctrl.h | 28 ++ include/ovn/actions.h | 3 + lib/actions.c | 16 ++ northd/northd.c | 16 +- ovn-sb.xml | 8 + tests/ovn-northd.at | 2 +- tests/ovn.at | 83 +++++- tests/test-ovn.c | 1 + utilities/ovn-trace.c | 2 + 16 files changed, 1636 insertions(+), 16 deletions(-) create mode 100644 controller/mac_cache.c create mode 100644 controller/mac_cache.h create mode 100644 controller/statctrl.c create mode 100644 controller/statctrl.h -- 2.41.0 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
