netdev - [RFC net-next 0/7] net: dsa: Sync local bridge FDB addresses to hardware

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Message-Id: <20210116012515.3152-1-tobias@waldekranz.com>
Date:   Sat, 16 Jan 2021 02:25:08 +0100
From:   Tobias Waldekranz <tobias@...dekranz.com>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com,
        olteanv@...il.com, roopa@...dia.com, nikolay@...dia.com,
        netdev@...r.kernel.org
Subject: [RFC net-next 0/7] net: dsa: Sync local bridge FDB addresses to hardware

This is an extension of previous work done by Vladimir Oltean:
https://lore.kernel.org/netdev/20210106095136.224739-1-olteanv@gmail.com/

With this series, local addresses belonging to bridge ports or to the
bridge itself are also synced down to the hardware FDB. As a result
the hardware can avoid flooding return traffic to the CPU which is not
only inefficient but also very confusing to users:

https://lore.kernel.org/netdev/CAGwvh_MAQWuKuhu5VuYjibmyN-FRxCXXhrQBRm34GShZPSN6Aw@mail.gmail.com/
https://lore.kernel.org/netdev/6106e3d5-31fc-388e-d4ac-c84ac0746a72@prevas.dk/

Patch 1 through 3 extends the switchdev fdb notifications to include
the local flag, and to handle the case when an entry is added to the
bridge itself.

Patches 4 through 6 enables DSA to make use of those extensions.

Finally, enable assisted learning on the CPU port for mv88e6xxx.

Tobias Waldekranz (7):
  net: bridge: switchdev: Refactor br_switchdev_fdb_notify
  net: bridge: switchdev: Include local flag in FDB notifications
  net: bridge: switchdev: Send FDB notifications for host addresses
  net: dsa: Include local addresses in assisted CPU port learning
  net: dsa: Include bridge addresses in assisted CPU port learning
  net: dsa: Sync static FDB entries on foreign interfaces to hardware
  net: dsa: mv88e6xxx: Request assisted learning on CPU port

 drivers/net/dsa/mv88e6xxx/chip.c |  1 +
 include/net/switchdev.h          |  1 +
 net/bridge/br_fdb.c              |  4 +--
 net/bridge/br_private.h          |  7 +++--
 net/bridge/br_switchdev.c        | 47 ++++++++++----------------------
 net/dsa/slave.c                  | 26 ++++++++++++------
 6 files changed, 40 insertions(+), 46 deletions(-)

-- 
2.17.1