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Message-ID: <20231201081951.1623069-9-liuhangbin@gmail.com>
Date: Fri, 1 Dec 2023 16:19:48 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: netdev@...r.kernel.org
Cc: "David S . Miller" <davem@...emloft.net>,
David Ahern <dsahern@...nel.org>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Ido Schimmel <idosch@...sch.org>,
Nikolay Aleksandrov <razor@...ckwall.org>,
Roopa Prabhu <roopa@...dia.com>,
Stephen Hemminger <stephen@...workplumber.org>,
Florian Westphal <fw@...len.de>,
Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
Jiri Pirko <jiri@...nulli.us>,
Marc Muehlfeld <mmuehlfe@...hat.com>,
Hangbin Liu <liuhangbin@...il.com>,
Florian Fainelli <florian.fainelli@...adcom.com>
Subject: [PATCHv4 net-next 08/10] docs: bridge: add switchdev doc
Add switchdev part for bridge document.
Reviewed-by: Vladimir Oltean <olteanv@...il.com>
Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
Acked-by: Nikolay Aleksandrov <razor@...ckwall.org>
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
Documentation/networking/bridge.rst | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/Documentation/networking/bridge.rst b/Documentation/networking/bridge.rst
index 863ad2c8d146..e96af89cd061 100644
--- a/Documentation/networking/bridge.rst
+++ b/Documentation/networking/bridge.rst
@@ -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
===
--
2.41.0
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