Markus Stockhausen a22d359fa5 realtek: 6.6: fix VLAN handling ... The CPU port of realtek switches needs some proper PVID set to handle untagged packets. Because the ethernet driver does no special VLAN handling (see CPU tag RVID/RVID_SEL) as of now we can only steer untagged packets by setting PVID for the CPU port. VLAN handling has never been perfect but 3 events made things worse. - Commit a376508216 ("rtl83xx: dsa: Do nothing when vid 0") - Commit e691e2b302 ("rtl83xx: dsa: reset PVID to 1 instead of 0") - Upgrade to kernel 6.6 Reasons are: - Rejecting VID 0 disabled Linux initialization routines - Initialization for PVID forgot to set priv->ports[port].pvid - Kernel 6.6 does no longer clarify CPU port as untagged To fix this prepare the VID 0 setup inside the driver. Join all ports to VID 0 and let no one from outsinde interfere with this setup. Especially ignore PVID settings for the CPU port for all further VLAN commands. Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de> Suggested-by: Bjørn Mork <bjorn@mork.no>		2024-09-14 20:14:47 +02:00
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net	realtek: 6.6: fix VLAN handling	2024-09-14 20:14:47 +02:00