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- From ce825df56e0480a2cbb296e38976babafb57e503 Mon Sep 17 00:00:00 2001
- From: Andrew Lunn <[email protected]>
- Date: Wed, 12 Sep 2018 01:53:17 +0200
- Subject: [PATCH 601/660] net: ethernet: Add helper for set_pauseparam for Asym
- Pause
- ethtool can be used to enable/disable pause. Add a helper to configure
- the PHY when asym pause is supported.
- Signed-off-by: Andrew Lunn <[email protected]>
- Reviewed-by: Florian Fainelli <[email protected]>
- Signed-off-by: David S. Miller <[email protected]>
- ---
- drivers/net/phy/phy_device.c | 30 ++++++++++++++++++++++++++++++
- include/linux/phy.h | 1 +
- 2 files changed, 31 insertions(+)
- --- a/drivers/net/phy/phy_device.c
- +++ b/drivers/net/phy/phy_device.c
- @@ -1790,6 +1790,36 @@ void phy_support_asym_pause(struct phy_d
- }
- EXPORT_SYMBOL(phy_support_asym_pause);
-
- +/**
- + * phy_set_asym_pause - Configure Pause and Asym Pause
- + * @phydev: target phy_device struct
- + * @rx: Receiver Pause is supported
- + * @tx: Transmit Pause is supported
- + *
- + * Description: Configure advertised Pause support depending on if
- + * transmit and receiver pause is supported. If there has been a
- + * change in adverting, trigger a new autoneg. Generally called from
- + * the set_pauseparam .ndo.
- + */
- +void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx)
- +{
- + u16 oldadv = phydev->advertising;
- + u16 newadv = oldadv &= ~(SUPPORTED_Pause | SUPPORTED_Asym_Pause);
- +
- + if (rx)
- + newadv |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
- + if (tx)
- + newadv ^= SUPPORTED_Asym_Pause;
- +
- + if (oldadv != newadv) {
- + phydev->advertising = newadv;
- +
- + if (phydev->autoneg)
- + phy_start_aneg(phydev);
- + }
- +}
- +EXPORT_SYMBOL(phy_set_asym_pause);
- +
- static void of_set_phy_supported(struct phy_device *phydev)
- {
- struct device_node *node = phydev->mdio.dev.of_node;
- --- a/include/linux/phy.h
- +++ b/include/linux/phy.h
- @@ -1050,6 +1050,7 @@ int phy_start_interrupts(struct phy_devi
- void phy_print_status(struct phy_device *phydev);
- int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
- void phy_support_asym_pause(struct phy_device *phydev);
- +void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
-
- int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
- int (*run)(struct phy_device *));
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