From 744e458aebf8dc7f33eee9af61aeb0145de921a6 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sun, 17 Feb 2019 10:28:33 +0100
Subject: [PATCH] net: phy: add helper linkmode_adv_to_mii_10gbt_adv_t
Add a helper linkmode_adv_to_mii_10gbt_adv_t(), similar to
linkmode_adv_to_mii_adv_t.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mdio.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index bfa7114167d71..dd46828b4c476 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -261,6 +261,31 @@ static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
return reg;
}
+/**
+ * linkmode_adv_to_mii_10gbt_adv_t
+ * @advertising: the linkmode advertisement settings
+ *
+ * A small helper function that translates linkmode advertisement
+ * settings to phy autonegotiation advertisements for the C45
+ * 10GBASE-T AN CONTROL (7.32) register.
+ */
+static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
+{
+ u32 result = 0;
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+ advertising))
+ result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+ advertising))
+ result |= MDIO_AN_10GBT_CTRL_ADV5G;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
+ advertising))
+ result |= MDIO_AN_10GBT_CTRL_ADV10G;
+
+ return result;
+}
+
int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
--
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