net: qualcomm: rmnet: Allow to configure flags for new devices

Add an option to configure the rmnet aggregation and command features
on device creation. This is achieved by using the vlan flags option.
Signed-off-by: NSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c

@@ -177,11 +177,20 @@ static int rmnet_newlink(struct net *src_net, struct net_device *dev,
 	if (err)
 		goto err2;
 
-	netdev_dbg(dev, "data format [ingress 0x%08X]\n", ingress_format);
-	port->ingress_data_format = ingress_format;
 	port->rmnet_mode = mode;
 
 	hlist_add_head_rcu(&ep->hlnode, &port->muxed_ep[mux_id]);
+
+	if (data[IFLA_VLAN_FLAGS]) {
+		struct ifla_vlan_flags *flags;
+
+		flags = nla_data(data[IFLA_VLAN_FLAGS]);
+		ingress_format = flags->flags & flags->mask;
+	}
+
+	netdev_dbg(dev, "data format [ingress 0x%08X]\n", ingress_format);
+	port->ingress_data_format = ingress_format;
+
 	return 0;
 
 err2:
@@ -313,7 +322,8 @@ static int rmnet_rtnl_validate(struct nlattr *tb[], struct nlattr *data[],
 
 static size_t rmnet_get_size(const struct net_device *dev)
 {
-	return nla_total_size(2); /* IFLA_VLAN_ID */
+	return nla_total_size(2) /* IFLA_VLAN_ID */ +
+	       nla_total_size(sizeof(struct ifla_vlan_flags)); /* IFLA_VLAN_FLAGS */
 }
 
 struct rtnl_link_ops rmnet_link_ops __read_mostly = {