From: Russell King Date: Fri, 1 Dec 2017 10:24:16 +0000 (+0000) Subject: phy: add phy_interface_mode_is_8023z() helper X-Git-Tag: v4.16-rc1~123^2~426^2~10 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=365c1e64ad4831f3d1806ff3d7771839ec5eeb6b;p=uclinux-h8%2Flinux.git phy: add phy_interface_mode_is_8023z() helper Add and use phy_interface_mode_is_8023z() helper to identify the interface modes that use 802.3z negotiation. Use it in phylink's phylink_mac_an_restart(). Signed-off-by: Russell King Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 5dc9668dde34..a02d67689d6e 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -320,8 +320,7 @@ static void phylink_mac_config(struct phylink *pl, static void phylink_mac_an_restart(struct phylink *pl) { if (pl->link_config.an_enabled && - (pl->link_config.interface == PHY_INTERFACE_MODE_1000BASEX || - pl->link_config.interface == PHY_INTERFACE_MODE_2500BASEX)) + phy_interface_mode_is_8023z(pl->link_config.interface)) pl->ops->mac_an_restart(pl->netdev); } diff --git a/include/linux/phy.h b/include/linux/phy.h index 50030da01664..7570cb838410 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -762,6 +762,20 @@ static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode) }; /** + * phy_interface_mode_is_8023z() - does the phy interface mode use 802.3z + * negotiation + * @mode: one of &enum phy_interface_t + * + * Returns true if the phy interface mode uses the 16-bit negotiation + * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding) + */ +static inline bool phy_interface_mode_is_8023z(phy_interface_t mode) +{ + return mode == PHY_INTERFACE_MODE_1000BASEX || + mode == PHY_INTERFACE_MODE_2500BASEX; +} + +/** * phy_interface_is_rgmii - Convenience function for testing if a PHY interface * is RGMII (all variants) * @phydev: the phy_device struct