Re: [PATCH v3 2/7] dt-bindings: net: dsa: mediatek,mt7530: add passthrough mode
flat view
From: Andrew Lunn <andrew@lunn.ch>
Date: 2026-10-28 02:04:52
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek, lkml
On Wed, Oct 28, 2026 at 01:13:12AM +0000, Caleb James DeLisle wrote:
quoted hunk ↗ jump to hunk
MT7530 switches can be configured to blindly pass packets between their CPU/upstream port and a downstream DSA port, in particular, without altering the MediaTek DSA Tag on the packets. This mode is used in some integrations where an SoC integrated switch exists, but a more capable MCM switch is added to effectively replace it. Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Acked-by: Rob Herring (Arm) <robh@kernel.org> --- .../devicetree/bindings/net/dsa/mediatek,mt7530.yaml | 7 +++++++ 1 file changed, 7 insertions(+)diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml index 90b3582b7619..e29fb8693498 100644 --- a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml +++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml@@ -73,6 +73,13 @@ description: | Check out example 7. + The MT7530 and MT7531 switches are capable of being operated in "passthrough" + mode. In this mode, traffic is unconditionally passed between the CPU port + and the DSA port which links to a second switch. To use passthrough mode, the + upstream switch is configured with a DSA link to the downstream switch. In + passthrough mode the upstream switch is restricted, with no other ports or + switch configuration allowed. + properties: compatible: oneOf:
Looking at just what is here, all i see is a comment. There is no new property? Yet the subject is "add passthrough mode"? Andrew