diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2018-11-28 00:30:14 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-04 02:13:25 +0300 |
| commit | d1420bb9951592c6de4148de7441bfa93ce4eed5 (patch) | |
| tree | a96567a03060800fe8a5dca87abe1c5ff0e42a46 /drivers | |
| parent | 79dfab43a976b76713c40222987c48e32510ebc1 (diff) | |
| download | linux-d1420bb9951592c6de4148de7441bfa93ce4eed5.tar.xz | |
net: phy: improve generic EEE ethtool functions
So far the two functions consider neither member eee_enabled nor
eee_active. Therefore network drivers have to do this in some kind
of glue code. I think this can be avoided.
Getting EEE parameters:
When not advertising any EEE mode, we can't consider EEE to be enabled.
Therefore interpret "EEE enabled" as "we advertise at least one EEE
mode". It's similar with "EEE active": interpret it as "EEE modes
advertised by both link partner have at least one mode in common".
Setting EEE parameters:
If eee_enabled isn't set, don't advertise any EEE mode and restart
aneg if needed to switch off EEE. If eee_enabled is set and
data->advertised is empty (e.g. because EEE was disabled), advertise
everything we support as default. This way EEE can easily switched
on/off by doing ethtool --set-eee <if> eee on/off, w/o any additional
parameters.
The changes to both functions shouldn't break any existing user.
Once the changes have been applied, at least some users can be
simplified.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/phy.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 376a0d8a2b61..e1a1e54baac2 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1144,6 +1144,7 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data) if (val < 0) return val; data->advertised = mmd_eee_adv_to_ethtool_adv_t(val); + data->eee_enabled = !!data->advertised; /* Get LP advertisement EEE */ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE); @@ -1151,6 +1152,8 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data) return val; data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val); + data->eee_active = !!(data->advertised & data->lp_advertised); + return 0; } EXPORT_SYMBOL(phy_ethtool_get_eee); @@ -1164,7 +1167,7 @@ EXPORT_SYMBOL(phy_ethtool_get_eee); */ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data) { - int cap, old_adv, adv, ret; + int cap, old_adv, adv = 0, ret; if (!phydev->drv) return -EIO; @@ -1178,10 +1181,12 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data) if (old_adv < 0) return old_adv; - adv = ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap; - - /* Mask prohibited EEE modes */ - adv &= ~phydev->eee_broken_modes; + if (data->eee_enabled) { + adv = !data->advertised ? cap : + ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap; + /* Mask prohibited EEE modes */ + adv &= ~phydev->eee_broken_modes; + } if (old_adv != adv) { ret = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv); |