[systemd-devel] Using systemd-networkd with TI switchdev switch

Matthias Hörger matthoe00 at gmail.com
Tue Sep 3 07:26:59 UTC 2024


Hi,

I'm using a chip from TI which contains a hardware switch. The switch
driver uses the switchdev interface. So the switch can be configured via
the bridge device.

The TI documentation has the requirement for the switch ports to be UP
before joining the bridge.

"Port’s netdev devices have to be in UP state before joining the bridge"

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-am69/09_00_00_06/exports/docs/linux/Foundational_Components/Kernel/Kernel_Drivers/Network/CPSWng-Native-Ethernet.html#switch-mode

Can this somehow be configured with systemd-networkd?

Currently,  my switch ports go UP after joining the bridge. This leads to a
wrong configuration. This can be observed in the latest systemd release and
older versions as well.

Regards,
Matthias
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