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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-08-22 02:04:41 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-22 11:49:04 +0300 |
| commit | 95ca38194c5aa670e54be2c4511dfaea87849d67 (patch) | |
| tree | 873333a96adf1ea6d35e7019bdd536e6a409dae6 /Documentation/networking | |
| parent | 37f299d98989bbac2b819eb5be97e093b817bb01 (diff) | |
| download | linux-95ca38194c5aa670e54be2c4511dfaea87849d67.tar.xz | |
docs: net: dsa: document the new methods for bridge TX forwarding offload
Two new methods have been introduced, add some verbiage about what they do.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/dsa/dsa.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst index b64cb4068c13..89bb4fa4c362 100644 --- a/Documentation/networking/dsa/dsa.rst +++ b/Documentation/networking/dsa/dsa.rst @@ -650,6 +650,22 @@ Bridge layer CPU port, and flooding towards the CPU port should also be enabled, due to a lack of an explicit address filtering mechanism in the DSA core. +- ``port_bridge_tx_fwd_offload``: bridge layer function invoked after + ``port_bridge_join`` when a driver sets ``ds->num_fwd_offloading_bridges`` to + a non-zero value. Returning success in this function activates the TX + forwarding offload bridge feature for this port, which enables the tagging + protocol driver to inject data plane packets towards the bridging domain that + the port is a part of. Data plane packets are subject to FDB lookup, hardware + learning on the CPU port, and do not override the port STP state. + Additionally, replication of data plane packets (multicast, flooding) is + handled in hardware and the bridge driver will transmit a single skb for each + packet that needs replication. The method is provided as a configuration + point for drivers that need to configure the hardware for enabling this + feature. + +- ``port_bridge_tx_fwd_unoffload``: bridge layer function invoken when a driver + leaves a bridge port which had the TX forwarding offload feature enabled. + Bridge VLAN filtering --------------------- |