net: dsa: b53: Configure VLANs while not filtering

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Update the B53 driver to support VLANs while not filtering. This
requires us to enable VLAN globally within the switch upon driver
initial configuration (dev->vlan_enabled).

We also need to remove the code that dealt with PVID re-configuration in
b53_vlan_filtering() since that function worked under the assumption
that it would only be called to make a bridge VLAN filtering, or not
filtering, and we would attempt to move the port's PVID accordingly.

Now that VLANs are programmed all the time, even in the case of a
non-VLAN filtering bridge, we would be programming a default_pvid for
the bridged switch ports.

We need the DSA receive path to pop the VLAN tag if it is the bridge's
default_pvid because the CPU port is always programmed tagged in the
programmed VLANs. In order to do so we utilize the
dsa_untag_bridge_pvid() helper introduced in the commit before within
net/dsa/tag_brcm.c.

Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Florian Fainelli 2020-09-23 14:40:38 -07:00 • committed by David S. Miller

parent 412a1526d0

commit ed409f3bba

3 changed files with 15 additions and 20 deletions

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19

drivers/net/dsa/b53/b53_common.c

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1

drivers/net/dsa/b53/b53_priv.h

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15

net/dsa/tag_brcm.c

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