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| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2020-03-20 17:51:38 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-23 21:09:47 -0700 |
| commit | 5eee3bb7103f4a66e4b90c2817f5e72509a2a607 (patch) | |
| tree | 1b1be649227f2a3cd15e40d7c60a9262c1d18a93 /include | |
| parent | Merge branch 'net-phy-xpcs-Improvements-for-next' (diff) | |
| download | wireguard-linux-5eee3bb7103f4a66e4b90c2817f5e72509a2a607.tar.xz wireguard-linux-5eee3bb7103f4a66e4b90c2817f5e72509a2a607.zip | |
net: phy: add and use phy_check_downshift
So far PHY drivers have to check whether a downshift occurred to be
able to notify the user. To make life of drivers authors a little bit
easier move the downshift notification to phylib. phy_check_downshift()
compares the highest mutually advertised speed with the actual value
of phydev->speed (typically read by the PHY driver from a
vendor-specific register) to detect a downshift.
v2:
- Add downshift hint to phy_print_status
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/phy.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index 36d9dea04016..99b5e3c4b621 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -365,6 +365,7 @@ struct macsec_ops; * suspended_by_mdio_bus: Set to true if this phy was suspended by MDIO bus. * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. * loopback_enabled: Set true if this phy has been loopbacked successfully. + * downshifted_rate: Set true if link speed has been downshifted. * state: state of the PHY for management purposes * dev_flags: Device-specific flags used by the PHY driver. * irq: IRQ number of the PHY's interrupt (-1 if none) @@ -405,6 +406,7 @@ struct phy_device { unsigned suspended_by_mdio_bus:1; unsigned sysfs_links:1; unsigned loopback_enabled:1; + unsigned downshifted_rate:1; unsigned autoneg:1; /* The most recently read link state */ @@ -698,6 +700,7 @@ static inline bool phy_is_started(struct phy_device *phydev) void phy_resolve_aneg_pause(struct phy_device *phydev); void phy_resolve_aneg_linkmode(struct phy_device *phydev); +void phy_check_downshift(struct phy_device *phydev); /** * phy_read - Convenience function for reading a given PHY register |