Tue, Feb 27, 2024 at 09:28:15AM CET, s-vadapalli@ti.com wrote:

The CPSW Ethernet Switch on TI's K3 SoCs can be configured to operate in
VLAN Aware or VLAN Unaware modes of operation. This is different from
the ALE being VLAN Aware and Unaware. The Ethernet Switch being VLAN Aware
results in the addition/removal/replacement of VLAN tag of packets during
egress as described in section "12.2.1.4.6.4.1 Transmit VLAN Processing" of
the AM65x Technical Reference Manual available at:
https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf
In VLAN Unaware mode, packets remain unmodified on egress.

The driver currently configures the Ethernet Switch in VLAN Aware mode by
default and there is no support to toggle this capability of the Ethernet
Switch at runtime. Thus, add support to toggle the capability by exporting
it via the ethtool "priv-flags" interface.

I don't follow. You have all the means to offload all bridge/vlan
configurations properly and setup your hw according to that. See mlxsw
for a reference. I don't see the need for any custom driver knobs.