net: dsa: mv88e6xxx: Offload bridge broadcast flooding flag

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These switches have two modes of classifying broadcast:

1. Broadcast is multicast.
2. Broadcast is its own unique thing that is always flooded
   everywhere.

This driver uses the first option, making sure to load the broadcast
address into all active databases. Because of this, we can support
per-port broadcast flooding by (1) making sure to only set the subset
of ports that have it enabled whenever joining a new bridge or VLAN,
and (2) by updating all active databases whenever the setting is
changed on a port.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Tobias Waldekranz 2021-03-18 20:25:40 +01:00 • committed by David S. Miller

parent 041bd545e1

commit 8d1d8298eb

1 changed files with 70 additions and 1 deletions

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drivers/net/dsa/mv88e6xxx/chip.c

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