net: dsa: Allow the DSA driver to indicate the tag protocol

DSA drivers may drive different families of switches which need
different tag protocol. Rather than hard code the tag protocol in the
driver structure, have a callback for the DSA core to call.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/net/dsa.h b/include/net/dsa.h
index d00c392bc9f8..8ca2684c5358 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -239,14 +239,15 @@ struct switchdev_obj_port_vlan;
 struct dsa_switch_driver {
         struct list_head        list;
 
-        enum dsa_tag_protocol   tag_protocol;
-
         /*
          * Probing and setup.
          */
         const char      *(*probe)(struct device *dsa_dev,
                                   struct device *host_dev, int sw_addr,
                                   void **priv);
+
+        enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds);
+
         int     (*setup)(struct dsa_switch *ds);
         int     (*set_addr)(struct dsa_switch *ds, u8 *addr);
         u32     (*get_phy_flags)(struct dsa_switch *ds, int port);