gianfar: do vlan cleanup

- unify vlan and nonvlan rx path
- kill priv->vlgrp and gfar_vlan_rx_register
- allow to turn on/off rx/tx vlan accel via ethtool

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index 87c1d86..9aa4377 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -1077,8 +1077,6 @@
 
 	struct sk_buff_head rx_recycle;
 
-	struct vlan_group *vlgrp;
-
 	/* RX queue filer rule set*/
 	struct ethtool_rx_list rx_list;
 	struct mutex rx_queue_access;
@@ -1183,6 +1181,7 @@
 void gfar_init_sysfs(struct net_device *dev);
 int gfar_set_features(struct net_device *dev, u32 features);
 extern void gfar_check_rx_parser_mode(struct gfar_private *priv);
+extern void gfar_vlan_mode(struct net_device *dev, u32 features);
 
 extern const struct ethtool_ops gfar_ethtool_ops;