@@ -1355,6 +1355,14 @@ int b53_vlan_prepare(struct dsa_switch *ds, int port,
if ((is5325(dev) || is5365(dev)) && vlan->vid_begin == 0)
return -EOPNOTSUPP;
+ /* Port 7 on 7278 connects to the ASP's UniMAC which is not capable of
+ * receiving VLAN tagged frames at all, we can still allow the port to
+ * be configured for egress untagged.
+ */
+ if (dev->chip_id == BCM7278_DEVICE_ID && port == 7 &&
+ !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED))
+ return -EINVAL;
+
if (vlan->vid_end > dev->num_vlans)
return -ERANGE;
On 7278, port 7 of the switch connects to the ASP UniMAC which is not capable of processing VLAN tagged frames. We can still allow the port to be part of a VLAN, and we may want it to be untagged on egress on that VLAN because of that limitation. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- drivers/net/dsa/b53/b53_common.c | 8 ++++++++ 1 file changed, 8 insertions(+)