From: Maxime Chevallier <maxime.chevall...@bootlin.com> Date: Wed, 28 Feb 2018 10:14:13 +0100
> Marvell PPv2 controller allows for generic packet filtering. This commit > adds entries to implement VLAN filtering. The approach taken is : > > - Filter entries that would match on the presence of the VLAN tag > (existing VLAN detection, DSA / EDSA detection) will set the next > lookup ID to be for the VID. > > - For each VLAN existing on a given port, we add an entry that matches > this specific VID. If the incoming packet matches the VID entry, it is > set for the next lookup in the chain (LU_L2). > > - A Guard entry is added for each port, that will match if the incoming > packet didn't match any of the above VID entries. This entry tags the > packet to be dropped. > > Due to this design, and the fact that the total 256 filter entries are > also used for other purposes, we have a limit of 10 VLANs per port. To > accommodate the case where we would need more VLANS on one port, this > patch implements the ndo_set_features to allow for disabling of VLAN > filtering using ethtool. > > The default config has VLAN filtering disabled. > > Signed-off-by: Maxime Chevallier <maxime.chevall...@bootlin.com> > --- > V2: Use correct order for local variable declarations That looks better, applied, thank you.
