From edc7ccbbcf32b97c7d26cd556f364eb4f22c4285 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sat, 29 Sep 2018 23:04:12 +0200 Subject: [PATCH] net: phy: Add helper to convert MII ADV register to a linkmode The phy_mii_ioctl can be used to write a value into the MII_ADVERTISE register in the PHY. Since this changes the state of the PHY, we need to make the same change to phydev->advertising. Add a helper which can convert the register value to a linkmode. Signed-off-by: Andrew Lunn Reviewed-by: Florian Fainelli Reviewed-by: Maxime Chevallier Signed-off-by: David S. Miller --- include/linux/mii.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/include/linux/mii.h b/include/linux/mii.h index 567047ef0309..8c7da9473ad9 100644 --- a/include/linux/mii.h +++ b/include/linux/mii.h @@ -303,6 +303,37 @@ static inline u32 mii_lpa_to_ethtool_lpa_x(u32 lpa) return result | mii_adv_to_ethtool_adv_x(lpa); } +/** + * mii_adv_to_linkmode_adv_t + * @advertising:pointer to destination link mode. + * @adv: value of the MII_ADVERTISE register + * + * A small helper function that translates MII_ADVERTISE bits + * to linkmode advertisement settings. + */ +static inline void mii_adv_to_linkmode_adv_t(unsigned long *advertising, + u32 adv) +{ + linkmode_zero(advertising); + + if (adv & ADVERTISE_10HALF) + linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, + advertising); + if (adv & ADVERTISE_10FULL) + linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, + advertising); + if (adv & ADVERTISE_100HALF) + linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, + advertising); + if (adv & ADVERTISE_100FULL) + linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, + advertising); + if (adv & ADVERTISE_PAUSE_CAP) + linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising); + if (adv & ADVERTISE_PAUSE_ASYM) + linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising); +} + /** * mii_advertise_flowctrl - get flow control advertisement flags * @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both) -- 2.30.2