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authorOleksij Rempel <o.rempel@pengutronix.de>2023-02-11 08:41:09 +0100
committerDavid S. Miller <davem@davemloft.net>2023-02-13 11:12:31 +0000
commit022c3f87f88e2d68e90be7687d981c9cb893a3b1 (patch)
treefc262dd87f60a5a73f44c535fcb49ff7ca67bb53 /include/linux/mdio.h
parentcf9f6079696840093aa6ea3c0ee405a553afe2fb (diff)
net: phy: add genphy_c45_ethtool_get/set_eee() support
Add replacement for phy_ethtool_get/set_eee() functions. Current phy_ethtool_get/set_eee() implementation is great and it is possible to make it even better: - this functionality is for devices implementing parts of IEEE 802.3 specification beyond Clause 22. The better place for this code is phy-c45.c - currently it is able to do read/write operations on PHYs with different abilities to not existing registers. It is better to use stored supported_eee abilities to avoid false read/write operations. - the eee_active detection will provide wrong results on not supported link modes. It is better to validate speed/duplex properties against supported EEE link modes. - it is able to support only limited amount of link modes. We have more EEE link modes... By refactoring this code I address most of this point except of the last one. Adding additional EEE link modes will need more work. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mdio.h')
-rw-r--r--include/linux/mdio.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index e75583f5d967..27013d6bf24a 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -428,6 +428,64 @@ static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
adv, val & MDIO_EEE_10GKR);
}
+/**
+ * linkmode_to_mii_eee_cap1_t()
+ * @adv: the linkmode advertisement settings
+ *
+ * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13
+ * "EEE advertisement 1" register (7.60)
+ */
+static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
+{
+ u32 result = 0;
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv))
+ result |= MDIO_EEE_100TX;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv))
+ result |= MDIO_EEE_1000T;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv))
+ result |= MDIO_EEE_10GT;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv))
+ result |= MDIO_EEE_1000KX;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv))
+ result |= MDIO_EEE_10GKX4;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv))
+ result |= MDIO_EEE_10GKR;
+
+ return result;
+}
+
+/**
+ * mii_10base_t1_adv_mod_linkmode_t()
+ * @adv: linkmode advertisement settings
+ * @val: register value
+ *
+ * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status"
+ * register (7.527) value to the linkmode.
+ */
+static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val)
+{
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
+ adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L);
+}
+
+/**
+ * linkmode_adv_to_mii_10base_t1_t()
+ * @adv: linkmode advertisement settings
+ *
+ * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25
+ * "10BASE-T1 AN control" register (7.526) value.
+ */
+static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv)
+{
+ u32 result = 0;
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv))
+ result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L;
+
+ 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);
int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,