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| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2019-03-25 19:34:58 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-03-27 13:51:49 -0700 |
| commit | 3aeb0803f7ea11ff2fc478f7d58f2b8e713af380 (patch) | |
| tree | 547d275b6edab2cc3e99b1d632da7cd05ab53461 /net/core | |
| parent | net/core: Allow the compiler to verify declaration and definition consistency (diff) | |
| download | linux-dev-3aeb0803f7ea11ff2fc478f7d58f2b8e713af380.tar.xz linux-dev-3aeb0803f7ea11ff2fc478f7d58f2b8e713af380.zip | |
ethtool: add PHY Fast Link Down support
This adds support for Fast Link Down as new PHY tunable.
Fast Link Down reduces the time until a link down event is reported
for 1000BaseT. According to the standard it's 750ms what is too long
for several use cases.
v2:
- add comment describing the constants
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/ethtool.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index b1eb32419732..387d67eb75ab 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -136,6 +136,7 @@ static const char phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = { [ETHTOOL_ID_UNSPEC] = "Unspec", [ETHTOOL_PHY_DOWNSHIFT] = "phy-downshift", + [ETHTOOL_PHY_FAST_LINK_DOWN] = "phy-fast-link-down", }; static int ethtool_get_features(struct net_device *dev, void __user *useraddr) @@ -2432,6 +2433,7 @@ static int ethtool_phy_tunable_valid(const struct ethtool_tunable *tuna) { switch (tuna->id) { case ETHTOOL_PHY_DOWNSHIFT: + case ETHTOOL_PHY_FAST_LINK_DOWN: if (tuna->len != sizeof(u8) || tuna->type_id != ETHTOOL_TUNABLE_U8) return -EINVAL; |