From 4a9f9d50f48a511faa31f4efc47fbd883b3607af Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 8 Feb 2020 22:07:53 +0000 Subject: net: mii: add linkmode_adv_to_mii_adv_x() Add a helper to convert a linkmode advertisement to a clause 37 advertisement value for 1000base-x and 2500base-x. Signed-off-by: Russell King --- include/linux/mii.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include') diff --git a/include/linux/mii.h b/include/linux/mii.h index 309de4a3e6e7..219b93cad1dd 100644 --- a/include/linux/mii.h +++ b/include/linux/mii.h @@ -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) -- cgit