Em sex., 24 de jul. de 2026 às 13:40, Lucas Vargas Dias
<[email protected]> escreveu:

> This series extends northd's incremental processing so that several more
> Northbound changes are handled without falling back to a full recompute
> of the en_lflow engine node.
>
> Today only plain VIF and remote logical switch ports are processed
> incrementally; creating/deleting a logical switch, a logical router port,
> or a router/virtual/localport switch port all force a full recompute.
> This series closes those gaps, one port/datapath type at a time, and
> fixes two latent bugs in the lflow and group-ecmp-route machinery that
> only surface once datapaths and ports start being created/deleted
> incrementally.
>
> The general approach in each patch is the same: enable the incremental
> path only where the port/datapath is safe to handle self-contained,
> regenerate the flows that live outside the port's own lflow_ref
> explicitly, and fall back to a full recompute for the dependencies that
> this path does not (yet) keep in sync (distributed gateway ports,
> gateway routers, NAT, load balancers, static/dynamic routing, policies,
> etc.).
>
> Patches
> -------

Recheck-request: github-robot

>  1. localport switch ports: enable the existing per-port incremental
>     path, which already owns every flow that differs from a VIF.
>
>  2. virtual switch ports: incremental create/delete, with recompute
>     fallbacks for distributed-NAT and dynamic-routing dependencies.
>
>  3. router-type switch ports: wire/tear down the peer relationship to
>     the LRP incrementally and regenerate sibling ARP-resolve and
>     ls_stateful flows; broad recompute fallback list.
>
>  4. logical router ports (non-gateway): mirror the router-switch-port
>     path on the LR side (tunnel key, connected routes, od->router_ips).
>     Also fixes unique_routes_remove() matching a route by prefix hash
>     only, which could delete the wrong connected route when several
>     share a prefix but differ in out_port (e.g. fe80::/64).
>
>  5. lflow-mgr: re-clone a lflow_ref_node's dp-group bitmap when its
>     length changed, instead of asserting it is constant. Adding/removing
>     a datapath changes the bitmap length and otherwise aborts northd.
>
>  6. logical switch datapaths: handle create/delete incrementally,
>     mirroring the logical-router datapath handling; move network-function
>     and multicast-flood flows to owners that are already processed
>     incrementally.
>
>  7. skip the redundant second rebuild of a created switch's ls_stateful
>     flows (already built in the LS-datapath handler).
>
> Patches 1-4 are self-contained per port type. Patches 5-7 belong
> together: 5 unblocks incremental datapath churn, 6 uses it for switches,
> and 7 removes the resulting duplicate work.
>
> Lucas Vargas Dias (7):
>   northd: Enable incremental processing for localport ports.
>   northd: Incrementally process virtual port creation and deletion.
>   northd: Incrementally process logical switch ports of type "router".
>   northd: Incrementally process logical router ports.
>   northd: Handle dp-group bitmap length change in lflow ref nodes.
>   northd: Incrementally process logical switch datapaths.
>   northd: Skip redundant ls_stateful reprocessing for created switches.
>
>  northd/en-group-ecmp-route.c |   29 +-
>  northd/en-lflow.c            |   39 +-
>  northd/en-ls-stateful.c      |    7 +
>  northd/en-multicast.c        |   20 +
>  northd/en-northd.c           |   66 +-
>  northd/en-sync-sb.c          |    2 +
>  northd/lflow-mgr.c           |   12 +-
>  northd/northd.c              | 1254 ++++++++++++++++++++++++++++++++--
>  northd/northd.h              |   33 +-
>  tests/ovn-northd.at          |  414 ++++++++++-
>  10 files changed, 1755 insertions(+), 121 deletions(-)
>
> --
> 2.43.0
>
>

-- 




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