Re: [PATCH 08/14] net: vlan: remove invalid VLAN protocol warning

[Felix Fietkau]

On 08.11.22 11:52, Vladimir Oltean wrote:
> On Tue, Nov 08, 2022 at 11:42:09AM +0100, Felix Fietkau wrote:
> > Okay, I will stick with METADATA_HW_PORT_MUX for now. If we use it in the
> > flow dissector to avoid the tagger specific fixup, we might as well use it
> > in DSA to skip the tag proto receive call. What do you think?
>
> I suppose that dsa_switch_rcv() could test for the presence of a metadata_dst
> and treat that generically if present, without unnecessarily calling down into
> the tagging protocol ->rcv() call. The assumption being that the metadata_dst
> is always formatted (by the DSA master) in a vendor-agnostic way.
Right. The assumption is that if we use METADATA_HW_PORT_MUX, the field 
md_dst->u.port_info.port_id will contain the index of the DSA port.

- Felix