chelsio: Use generic MDIO definitions and mdio_mii_ioctl()

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 2f81db5..1ccd547 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2450,6 +2450,7 @@
         tristate "Chelsio 10Gb Ethernet support"
         depends on PCI
 	select CRC32
+	select MDIO
         help
           This driver supports Chelsio gigabit and 10-gigabit
           Ethernet cards. More information about adapter features and