net: mii: add linkmode_adv_to_mii_adv_x() (a9f28eba) · Commits · 戴 / test

Add a helper to convert a linkmode advertisement to a clause 37 advertisement value for 1000base-x and 2500base-x. Signed-off-by:

include/linux/mii.h

+20 −0

Original line number	Diff line number	Diff line
		@@ -536,6 +536,26 @@ static inline void mii_lpa_mod_linkmode_x(unsigned long *linkmodes, u16 lpa,
		lpa & LPA_1000XFULL);
		}

		/**
		* linkmode_adv_to_mii_adv_x - encode a linkmode to config_reg
		* @linkmodes: linkmodes
		* @fd_bit: full duplex bit
		*/
		static inline u16 linkmode_adv_to_mii_adv_x(const unsigned long *linkmodes,
		int fd_bit)
		{
		u16 adv = 0;

		if (linkmode_test_bit(fd_bit, linkmodes))
		adv \|= ADVERTISE_1000XFULL;
		if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, linkmodes))
		adv \|= ADVERTISE_1000XPAUSE;
		if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, linkmodes))
		adv \|= ADVERTISE_1000XPSE_ASYM;

		return adv;
		}

		/**
		* mii_advertise_flowctrl - get flow control advertisement flags
		* @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)