add support for Xilinx 1000BASE-X phy (GTX)

commit 39695029bc15041c809df3db4ba19bd729c447fa
Author: Charles Coldwell <coldwell@ll.mit.edu>
Date:   Tue Feb 19 08:27:33 2013 -0500

    Changes to support the Xilinx 1000BASE-X phy (GTX/MGT)

Signed-off-by: Charles Coldwell <coldwell@ll.mit.edu>
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index fcb20fe..f6dbdb0 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -580,6 +580,8 @@
 #define SUPPORTED_10000baseKX4_Full	(1 << 18)
 #define SUPPORTED_10000baseKR_Full	(1 << 19)
 #define SUPPORTED_10000baseR_FEC	(1 << 20)
+#define SUPPORTED_1000baseX_Half	(1 << 21)
+#define SUPPORTED_1000baseX_Full	(1 << 22)
 
 /* Indicates what features are advertised by the interface. */
 #define ADVERTISED_10baseT_Half		(1 << 0)
@@ -603,6 +605,8 @@
 #define ADVERTISED_10000baseKX4_Full	(1 << 18)
 #define ADVERTISED_10000baseKR_Full	(1 << 19)
 #define ADVERTISED_10000baseR_FEC	(1 << 20)
+#define ADVERTISED_1000baseX_Half	(1 << 21)
+#define ADVERTISED_1000baseX_Full	(1 << 22)
 
 /* The following are all involved in forcing a particular link
  * mode for the device for setting things.  When getting the
diff --git a/include/linux/mii.h b/include/linux/mii.h
index 8b92692..66b83d8 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -115,6 +115,8 @@
 #define EXPANSION_MFAULTS	0x0010	/* Multiple faults detected    */
 #define EXPANSION_RESV		0xffe0	/* Unused...		       */
 
+#define ESTATUS_1000_XFULL	0x8000	/* Can do 1000BX Full */
+#define ESTATUS_1000_XHALF	0x4000	/* Can do 1000BX Half */
 #define ESTATUS_1000_TFULL	0x2000	/* Can do 1000BT Full */
 #define ESTATUS_1000_THALF	0x1000	/* Can do 1000BT Half */