diff options
| author | Andrew Lunn | 2018-09-12 01:53:19 +0200 |
|---|---|---|
| committer | David S. Miller | 2018-09-13 05:24:21 +0200 |
| commit | 22b7d29926b577ff4f480611380d03268545b787 (patch) | |
| tree | 6b25af156504351518b1e7bbab8e39ff1fe3de00 /drivers/net/phy/phy_device.c | |
| parent | net: ethernet: Add helper for set_pauseparam for Pause (diff) | |
| download | kernel-qcow2-linux-22b7d29926b577ff4f480611380d03268545b787.tar.gz kernel-qcow2-linux-22b7d29926b577ff4f480611380d03268545b787.tar.xz kernel-qcow2-linux-22b7d29926b577ff4f480611380d03268545b787.zip | |
net: ethernet: Add helper to determine if pause configuration is supported
Rather than have MAC drivers open code the test, add a helper in
phylib. This will help when we change the type of phydev->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>
Diffstat (limited to 'drivers/net/phy/phy_device.c')
| -rw-r--r-- | drivers/net/phy/phy_device.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index de95f1e072e9..af64a9320fb0 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1863,6 +1863,26 @@ void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx) } EXPORT_SYMBOL(phy_set_asym_pause); +/** + * phy_validate_pause - Test if the PHY/MAC support the pause configuration + * @phydev: phy_device struct + * @pp: requested pause configuration + * + * Description: Test if the PHY/MAC combination supports the Pause + * configuration the user is requesting. Returns True if it is + * supported, false otherwise. + */ +bool phy_validate_pause(struct phy_device *phydev, + struct ethtool_pauseparam *pp) +{ + if (!(phydev->supported & SUPPORTED_Pause) || + (!(phydev->supported & SUPPORTED_Asym_Pause) && + pp->rx_pause != pp->tx_pause)) + return false; + return true; +} +EXPORT_SYMBOL(phy_validate_pause); + static void of_set_phy_supported(struct phy_device *phydev) { struct device_node *node = phydev->mdio.dev.of_node; |