Merge branch 'net-phy-eee-2'

Heiner Kallweit says:

====================
net: phy: add support for the EEE 2 registers

This series adds support for the EEE 2 registers. Most relevant and
for now the only supported modes are 2500baseT and 5000baseT.
====================

Signed-off-by: David S. Miller <[email protected]>

2 files changed, 57 insertions, 0 deletions

diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index 79ceee3c8673..fd8ff310f9eb 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -440,6 +440,42 @@ static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
 }
 
 /**
+ * mii_eee_cap2_mod_linkmode_sup_t()
+ * @adv: target the linkmode settings
+ * @val: register value
+ *
+ * A function that translates value of following registers to the linkmode:
+ * IEEE 802.3-2022 45.2.3.11 "EEE control and capability 2" register (3.21)
+ */
+static inline void mii_eee_cap2_mod_linkmode_sup_t(unsigned long *adv, u32 val)
+{
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+			 adv, val & MDIO_EEE_2_5GT);
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+			 adv, val & MDIO_EEE_5GT);
+}
+
+/**
+ * mii_eee_cap2_mod_linkmode_adv_t()
+ * @adv: target the linkmode advertisement settings
+ * @val: register value
+ *
+ * A function that translates value of following registers to the linkmode:
+ * IEEE 802.3-2022 45.2.7.16 "EEE advertisement 2" register (7.62)
+ * IEEE 802.3-2022 45.2.7.17 "EEE link partner ability 2" register (7.63)
+ * Note: Currently this function is the same as mii_eee_cap2_mod_linkmode_sup_t.
+ *       For certain, not yet supported, modes however the bits differ.
+ *       Therefore create separate functions already.
+ */
+static inline void mii_eee_cap2_mod_linkmode_adv_t(unsigned long *adv, u32 val)
+{
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+			 adv, val & MDIO_EEE_2_5GT);
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+			 adv, val & MDIO_EEE_5GT);
+}
+
+/**
  * linkmode_to_mii_eee_cap1_t()
  * @adv: the linkmode advertisement settings
  *
@@ -467,6 +503,25 @@ static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
 }
 
 /**
+ * linkmode_to_mii_eee_cap2_t()
+ * @adv: the linkmode advertisement settings
+ *
+ * A function that translates linkmode to value for IEEE 802.3-2022 45.2.7.16
+ * "EEE advertisement 2" register (7.62)
+ */
+static inline u32 linkmode_to_mii_eee_cap2_t(unsigned long *adv)
+{
+	u32 result = 0;
+
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, adv))
+		result |= MDIO_EEE_2_5GT;
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, adv))
+		result |= MDIO_EEE_5GT;
+
+	return result;
+}
+
+/**
  * mii_10base_t1_adv_mod_linkmode_t()
  * @adv: linkmode advertisement settings
  * @val: register value
diff --git a/include/linux/phy.h b/include/linux/phy.h
index c2dda21b39e1..e3ab2c347a59 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -54,6 +54,7 @@ extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init;
 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init;
 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_eee_cap1_features) __ro_after_init;
+extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_eee_cap2_features) __ro_after_init;
 
 #define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features)
 #define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features)
@@ -65,6 +66,7 @@ extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_eee_cap1_features) __ro_after_init;
 #define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features)
 #define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features)
 #define PHY_EEE_CAP1_FEATURES ((unsigned long *)&phy_eee_cap1_features)
+#define PHY_EEE_CAP2_FEATURES ((unsigned long *)&phy_eee_cap2_features)
 
 extern const int phy_basic_ports_array[3];
 extern const int phy_fibre_port_array[1];