net: dsa: b53: implement port isolation support

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Implement port isolation support via the Protected Ports register.

Protected ports can only communicate with unprotected ports, but not
with each other, matching the expected behaviour of isolated ports.

Tested on BCM963268BU.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://patch.msgid.link/20251013152834.100169-1-jonas.gorski@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Jonas Gorski 2025-10-13 17:28:34 +02:00 • committed by Jakub Kicinski

parent e0aa115271

commit bdec4271e8

2 changed files with 28 additions and 1 deletions

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25

drivers/net/dsa/b53/b53_common.c

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4

drivers/net/dsa/b53/b53_regs.h

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