net: dsa: Add support for reading switch registers with ethtool

Add support for reading switch registers with 'ethtool -d'.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 37856a28c8d3..ed3c34bbb67a 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -268,6 +268,13 @@ struct dsa_switch_driver {
                               struct ethtool_eeprom *eeprom, u8 *data);
         int     (*set_eeprom)(struct dsa_switch *ds,
                               struct ethtool_eeprom *eeprom, u8 *data);
+
+        /*
+         * Register access.
+         */
+        int     (*get_regs_len)(struct dsa_switch *ds, int port);
+        void    (*get_regs)(struct dsa_switch *ds, int port,
+                            struct ethtool_regs *regs, void *p);
 };
 
 void register_switch_driver(struct dsa_switch_driver *type);