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net: ethernet: Add helper for set_pauseparam for Asym Pause

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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 <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn
2018-09-12 01:53:17 +02:00
committed by David S. Miller
parent c306ad3618
commit 70814e819c
10 changed files with 68 additions and 147 deletions
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30
drivers/net/phy/phy_device.c
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@@ -1810,6 +1810,36 @@ void phy_support_asym_pause(struct phy_device *phydev)
}
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;