From 606116529ab2d12e93bf751f74ed50a621b46846 Mon Sep 17 00:00:00 2001 From: Sean Anderson Date: Tue, 20 Sep 2022 18:12:29 -0400 Subject: [PATCH] net: phylink: Export phylink_caps_to_linkmodes This function is convenient for MAC drivers. They can use it to add or remove particular link modes based on capabilities (such as if half duplex is not supported for a particular interface mode). Signed-off-by: Sean Anderson Signed-off-by: David S. Miller --- drivers/net/phy/phylink.c | 12 ++++++++++-- include/linux/phylink.h | 1 + 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index e9d62f9..c5c3f0b 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -155,8 +155,15 @@ static const char *phylink_an_mode_str(unsigned int mode) return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown"; } -static void phylink_caps_to_linkmodes(unsigned long *linkmodes, - unsigned long caps) +/** + * phylink_caps_to_linkmodes() - Convert capabilities to ethtool link modes + * @linkmodes: ethtool linkmode mask (must be already initialised) + * @caps: bitmask of MAC capabilities + * + * Set all possible pause, speed and duplex linkmodes in @linkmodes that are + * supported by the @caps. @linkmodes must have been initialised previously. + */ +void phylink_caps_to_linkmodes(unsigned long *linkmodes, unsigned long caps) { if (caps & MAC_SYM_PAUSE) __set_bit(ETHTOOL_LINK_MODE_Pause_BIT, linkmodes); @@ -295,6 +302,7 @@ static void phylink_caps_to_linkmodes(unsigned long *linkmodes, __set_bit(ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT, linkmodes); } } +EXPORT_SYMBOL_GPL(phylink_caps_to_linkmodes); /** * phylink_get_linkmodes() - get acceptable link modes diff --git a/include/linux/phylink.h b/include/linux/phylink.h index 1f997e1..7cf26d7 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -547,6 +547,7 @@ void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode, phy_interface_t interface, int speed, int duplex); #endif +void phylink_caps_to_linkmodes(unsigned long *linkmodes, unsigned long caps); void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface, unsigned long mac_capabilities); void phylink_generic_validate(struct phylink_config *config, -- 2.7.4