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authorHangbin Liu <liuhangbin@gmail.com>2023-12-01 11:19:48 +0300
committerPaolo Abeni <pabeni@redhat.com>2023-12-05 12:48:01 +0300
commit3c37f17d6ca9a2153486e2893f996a9f1525c410 (patch)
tree0130117ed042a446ce8cd52d72045202eabceee2 /Documentation/networking/bridge.rst
parent75ceac88efb84c72b684d73a16c37842ca08fb14 (diff)
downloadlinux-3c37f17d6ca9a2153486e2893f996a9f1525c410.tar.xz
docs: bridge: add switchdev doc
Add switchdev part for bridge document. Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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@@ -233,6 +233,24 @@ which is disabled by default but can be enabled. And `Multicast Router Discovery
<https://lore.kernel.org/netdev/20190121062628.2710-1-linus.luessing@c0d3.blue/>`_,
which help identify the location of multicast routers.
+Switchdev
+=========
+
+Linux Bridge Switchdev is a feature in the Linux kernel that extends the
+capabilities of the traditional Linux bridge to work more efficiently with
+hardware switches that support switchdev. With Linux Bridge Switchdev, certain
+networking functions like forwarding, filtering, and learning of Ethernet
+frames can be offloaded to a hardware switch. This offloading reduces the
+burden on the Linux kernel and CPU, leading to improved network performance
+and lower latency.
+
+To use Linux Bridge Switchdev, you need hardware switches that support the
+switchdev interface. This means that the switch hardware needs to have the
+necessary drivers and functionality to work in conjunction with the Linux
+kernel.
+
+Please see the :ref:`switchdev` document for more details.
+
FAQ
===