From 6f6fefc0cc4a0913a651128d997d5b89ca3a52ce Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 3 Jan 2020 23:13:28 +0000 Subject: net: phy: add resolved pause support Allow phylib drivers to pass the hardware-resolved pause state to MAC drivers, rather than using the software-based pause resolution code. Signed-off-by: Russell King --- drivers/net/phy/phy_device.c | 6 ++++++ include/linux/phy.h | 9 +++++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 67515916722b..470c97d90b9f 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -2409,6 +2409,12 @@ void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause) return; } + if (phydev->resolved_pause_valid) { + *tx_pause = phydev->resolved_tx_pause; + *rx_pause = phydev->resolved_rx_pause; + return; + } + return linkmode_resolve_pause(phydev->advertising, phydev->lp_advertising, tx_pause, rx_pause); diff --git a/include/linux/phy.h b/include/linux/phy.h index d0cd2f95dca0..8fc9583f7fa9 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -406,6 +406,15 @@ struct phy_device { int pause; int asym_pause; + /* + * private to phylib: the resolved pause state - only valid if + * resolved_pause_valid is true. only phy drivers and phylib + * should touch this. + */ + bool resolved_pause_valid; + bool resolved_tx_pause; + bool resolved_rx_pause; + /* Union of PHY and Attached devices' supported link modes */ /* See ethtool.h for more info */ __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); -- cgit