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Daniel Golle says: ==================== net: dsa: mxl862xx: add support for bridge offloading As a next step to complete the mxl862xx DSA driver, add support for offloading forwarding between bridged ports to the switch hardware. This works pretty much without any big surprises, apart from two subtleties: * per-port control over flooding behavior has to be implemented by (ab)using a 0-rate QoS meters as stopper in lack of any better option. * STP state transition unconditionally enables learning on a port even if it was previously explicitely disabled (a firmware bug) Note that as the driver is still lacking all VLAN features (which are going to be added next), at this point some of the bridge_vlan_aware.sh tests are failing after applying this series. This is expected and cannot be avoided without implementing port_vlan_filtering + port_vlan_add/del. And adding both bridge and VLAN offloading at the same time would be too much for anyone to review, so VLAN support is going to be submitted in a follow-up series immediately after this series has been accepted. All other relevant selftests (including bridge_vlan_unaware.sh) are still passing. Inspired by the comments received from Paolo Abeni as reply to v5 the driver now no longer caches bridge port membership in the driver, but instead imports an existing helper from yt921x.c to dsa.h in order to allow the driver to easily iterate over bridge members. The mapping between DSA bridge num and firmware bridge ID is done using a simple fixed-size array in mxl862xx_priv. ==================== Link: https://patch.msgid.link/cover.1775049897.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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