The constants are taken from the USXGMII Singleport Copper Interface
specification. The naming are based on the SGMII ones, but with an MDIO_
prefix.

Signed-off-by: Michael Walle <mich...@walle.cc>
---
 include/uapi/linux/mdio.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/include/uapi/linux/mdio.h b/include/uapi/linux/mdio.h
index 4bcb41c71b8c..784723072578 100644
--- a/include/uapi/linux/mdio.h
+++ b/include/uapi/linux/mdio.h
@@ -324,4 +324,30 @@ static inline __u16 mdio_phy_id_c45(int prtad, int devad)
        return MDIO_PHY_ID_C45 | (prtad << 5) | devad;
 }
 
+/* UsxgmiiChannelInfo[15:0] for USXGMII in-band auto-negotiation.*/
+#define MDIO_LPA_USXGMII_EEE_CLK_STP   0x0080  /* EEE clock stop supported */
+#define MDIO_LPA_USXGMII_EEE           0x0100  /* EEE supported */
+#define MDIO_LPA_USXGMII_SPD_MASK      0x0e00  /* USXGMII speed mask */
+#define MDIO_LPA_USXGMII_FULL_DUPLEX   0x1000  /* USXGMII full duplex */
+#define MDIO_LPA_USXGMII_DPX_SPD_MASK  0x1e00  /* USXGMII duplex and speed 
bits */
+#define MDIO_LPA_USXGMII_10            0x0000  /* 10Mbps */
+#define MDIO_LPA_USXGMII_10HALF                0x0000  /* 10Mbps half-duplex */
+#define MDIO_LPA_USXGMII_10FULL                0x1000  /* 10Mbps full-duplex */
+#define MDIO_LPA_USXGMII_100           0x0200  /* 100Mbps */
+#define MDIO_LPA_USXGMII_100HALF       0x0200  /* 100Mbps half-duplex */
+#define MDIO_LPA_USXGMII_100FULL       0x1200  /* 100Mbps full-duplex */
+#define MDIO_LPA_USXGMII_1000          0x0400  /* 1000Mbps */
+#define MDIO_LPA_USXGMII_1000HALF      0x0400  /* 1000Mbps half-duplex */
+#define MDIO_LPA_USXGMII_1000FULL      0x1400  /* 1000Mbps full-duplex */
+#define MDIO_LPA_USXGMII_10G           0x0600  /* 10Gbps */
+#define MDIO_LPA_USXGMII_10GHALF       0x0600  /* 10Gbps half-duplex */
+#define MDIO_LPA_USXGMII_10GFULL       0x1600  /* 10Gbps full-duplex */
+#define MDIO_LPA_USXGMII_2500          0x0800  /* 2500Mbps */
+#define MDIO_LPA_USXGMII_2500HALF      0x0800  /* 2500Mbps half-duplex */
+#define MDIO_LPA_USXGMII_2500FULL      0x1800  /* 2500Mbps full-duplex */
+#define MDIO_LPA_USXGMII_5000          0x0a00  /* 5000Mbps */
+#define MDIO_LPA_USXGMII_5000HALF      0x0a00  /* 5000Mbps half-duplex */
+#define MDIO_LPA_USXGMII_5000FULL      0x1a00  /* 5000Mbps full-duplex */
+#define MDIO_LPA_USXGMII_LINK          0x8000  /* PHY link with copper-side 
partner */
+
 #endif /* _UAPI__LINUX_MDIO_H__ */
-- 
2.20.1

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