From ea4efe25ec937a7bc1108e26261c9dd4082375af Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 29 Dec 2017 12:46:27 +0000 Subject: net: phy: marvell10g: add MDI swap reporting Add reporting of the MDI swap to the Marvell 10G PHY driver by providing a generic implementation for the standard 10GBASE-T pair swap register and polarity register. We also support reading the MDI swap status for 1G and below from a PCS register. Signed-off-by: Russell King Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/linux/phy.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index c4b4715caa21..bc379a408c4f 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -901,6 +901,7 @@ int genphy_c45_read_lpa(struct phy_device *phydev); int genphy_c45_read_pma(struct phy_device *phydev); int genphy_c45_pma_setup_forced(struct phy_device *phydev); int genphy_c45_an_disable_aneg(struct phy_device *phydev); +int genphy_c45_read_mdix(struct phy_device *phydev); static inline int phy_read_status(struct phy_device *phydev) { -- cgit v1.2.3 From 8c5e850c0ce597cf5934beba8b55f7651d2cd6da Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 29 Dec 2017 12:46:38 +0000 Subject: net: phy: add helper to convert negotiation result to phy settings Add a helper to convert the result of the autonegotiation advertisment into the PHYs speed and duplex settings. If the result is full duplex, also extract the pause mode settings from the link partner advertisment. Signed-off-by: Russell King Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/phy-core.c | 43 +++++++++++++++++++++++++++++++++++++++++++ include/linux/phy.h | 2 ++ 2 files changed, 45 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c index 21f75ae244b3..c0ad08fa9d2c 100644 --- a/drivers/net/phy/phy-core.c +++ b/drivers/net/phy/phy-core.c @@ -189,6 +189,49 @@ size_t phy_speeds(unsigned int *speeds, size_t size, return count; } +/** + * phy_resolve_aneg_linkmode - resolve the advertisments into phy settings + * @phydev: The phy_device struct + * + * Resolve our and the link partner advertisments into their corresponding + * speed and duplex. If full duplex was negotiated, extract the pause mode + * from the link partner mask. + */ +void phy_resolve_aneg_linkmode(struct phy_device *phydev) +{ + u32 common = phydev->lp_advertising & phydev->advertising; + + if (common & ADVERTISED_10000baseT_Full) { + phydev->speed = SPEED_10000; + phydev->duplex = DUPLEX_FULL; + } else if (common & ADVERTISED_1000baseT_Full) { + phydev->speed = SPEED_1000; + phydev->duplex = DUPLEX_FULL; + } else if (common & ADVERTISED_1000baseT_Half) { + phydev->speed = SPEED_1000; + phydev->duplex = DUPLEX_HALF; + } else if (common & ADVERTISED_100baseT_Full) { + phydev->speed = SPEED_100; + phydev->duplex = DUPLEX_FULL; + } else if (common & ADVERTISED_100baseT_Half) { + phydev->speed = SPEED_100; + phydev->duplex = DUPLEX_HALF; + } else if (common & ADVERTISED_10baseT_Full) { + phydev->speed = SPEED_10; + phydev->duplex = DUPLEX_FULL; + } else if (common & ADVERTISED_10baseT_Half) { + phydev->speed = SPEED_10; + phydev->duplex = DUPLEX_HALF; + } + + if (phydev->duplex == DUPLEX_FULL) { + phydev->pause = !!(phydev->lp_advertising & ADVERTISED_Pause); + phydev->asym_pause = !!(phydev->lp_advertising & + ADVERTISED_Asym_Pause); + } +} +EXPORT_SYMBOL_GPL(phy_resolve_aneg_linkmode); + static void mmd_phy_indirect(struct mii_bus *bus, int phy_addr, int devad, u16 regnum) { diff --git a/include/linux/phy.h b/include/linux/phy.h index bc379a408c4f..a052e3768422 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -690,6 +690,8 @@ phy_lookup_setting(int speed, int duplex, const unsigned long *mask, size_t phy_speeds(unsigned int *speeds, size_t size, unsigned long *mask, size_t maxbit); +void phy_resolve_aneg_linkmode(struct phy_device *phydev); + /** * phy_read_mmd - Convenience function for reading a register * from an MMD on a given PHY. -- cgit v1.2.3