netdev - [PATH RFC net-next 5/8] net: phy: Add limkmode equivalents to some of the MII ethtool helpers

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Message-Id: <1536961136-30453-6-git-send-email-andrew@lunn.ch>
Date:   Fri, 14 Sep 2018 23:38:53 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     netdev <netdev@...r.kernel.org>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>
Subject: [PATH RFC net-next 5/8] net: phy: Add limkmode equivalents to some of the MII ethtool helpers

Add helpers which take a linkmode rather than a u32 ethtool for
advertising settings.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 include/linux/mii.h | 50 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/include/linux/mii.h b/include/linux/mii.h
index 9ed49c8261d0..2da85b02e1c0 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -132,6 +132,34 @@ static inline u32 ethtool_adv_to_mii_adv_t(u32 ethadv)
 	return result;
 }
 
+/**
+ * linkmode_adv_to_mii_adv_t
+ * @advertising: the linkmode advertisement settings
+ *
+ * A small helper function that translates linkmode advertisement
+ * settings to phy autonegotiation advertisements for the
+ * MII_ADVERTISE register.
+ */
+static inline u32 linkmode_adv_to_mii_adv_t(unsigned long *advertising)
+{
+	u32 result = 0;
+
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, advertising))
+		result |= ADVERTISE_10HALF;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, advertising))
+		result |= ADVERTISE_10FULL;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, advertising))
+		result |= ADVERTISE_100HALF;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, advertising))
+		result |= ADVERTISE_100FULL;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising))
+		result |= ADVERTISE_PAUSE_CAP;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising))
+		result |= ADVERTISE_PAUSE_ASYM;
+
+	return result;
+}
+
 /**
  * mii_adv_to_ethtool_adv_t
  * @adv: value of the MII_ADVERTISE register
@@ -179,6 +207,28 @@ static inline u32 ethtool_adv_to_mii_ctrl1000_t(u32 ethadv)
 	return result;
 }
 
+/**
+ * linkmode_adv_to_mii_ctrl1000_t
+ * advertising: the linkmode advertisement settings
+ *
+ * A small helper function that translates linkmode advertisement
+ * settings to phy autonegotiation advertisements for the
+ * MII_CTRL1000 register when in 1000T mode.
+ */
+static inline u32 linkmode_adv_to_mii_ctrl1000_t(unsigned long *advertising)
+{
+	u32 result = 0;
+
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
+			      advertising))
+		result |= ADVERTISE_1000HALF;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+			      advertising))
+		result |= ADVERTISE_1000FULL;
+
+	return result;
+}
+
 /**
  * mii_ctrl1000_to_ethtool_adv_t
  * @adv: value of the MII_CTRL1000 register
-- 
2.19.0.rc1