Messages in this thread | | | Date | Fri, 2 Feb 2024 01:26:19 +0200 | From | Vladimir Oltean <> | Subject | Re: [PATCH net RFC] net: dsa: mt7530: fix link-local frames that ingress vlan filtering ports |
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On Thu, Feb 01, 2024 at 10:13:39PM +0300, Arınç ÜNAL via B4 Relay wrote: > One remaining limitation is that the ingress port must have a PVID assigned > to it for the frame to be trapped to the CPU port. A PVID is set by default > on vlan aware and vlan unaware ports. However, when the network interface > that pertains to the ingress port is attached to a vlan_filtering enabled > bridge, the user can remove the PVID assignment from it which would prevent > the link-local frames from being trapped to the CPU port. > > Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com> > --- > I couldn't figure out a way to bypass VLAN table lookup for link-local > frames to directly trap them to the CPU port. The CPU port is hardcoded for > MT7530. For MT7531 and the switch on the MT7988 SoC, it depends on the port > matrix to choose the CPU port to trap the frames to. Port matrix and VLAN > table seem to go hand in hand so I don't know if this would even be > possible. > > If possible to implement, link-local frames must not be influenced by the > VLAN table. They must always be trapped to the CPU port, and trapped > untagged.
Isn't this, in effect, what the "Leaky VLAN Enable" bit does?
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