From: Narayan Reddy <narayanr@xxxxxxxxxx> Enable flow control support using pause frames in aquantia phy driver. Signed-off-by: Narayan Reddy <narayanr@xxxxxxxxxx> Signed-off-by: Revanth Kumar Uppala <ruppala@xxxxxxxxxx> --- drivers/net/phy/aquantia_main.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/phy/aquantia_main.c b/drivers/net/phy/aquantia_main.c index 334a6904ca5a..c99b9d066463 100644 --- a/drivers/net/phy/aquantia_main.c +++ b/drivers/net/phy/aquantia_main.c @@ -26,6 +26,8 @@ #define PHY_ID_AQR412 0x03a1b712 #define PHY_ID_AQR113C 0x31c31c12 +#define MDIO_AN_ADVT 0x0010 + #define MDIO_PHYXS_VEND_IF_STATUS 0xe812 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK GENMASK(7, 3) #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR 0 @@ -583,6 +585,17 @@ static int aqr107_config_init(struct phy_device *phydev) if (!ret) aqr107_chip_info(phydev); + /* Advertize flow control */ + linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported); + linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported); + linkmode_copy(phydev->advertising, phydev->supported); + + /* Configure flow control */ + ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, MDIO_AN_ADVT, ADVERTISE_PAUSE_CAP | + ADVERTISE_PAUSE_ASYM); + if (ret < 0) + return ret; + return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT); } -- 2.17.1
