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ethtool: Core impl for ETHTOOL_PHY_DOWNSHIFT tunable

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Adding validation support for the ETHTOOL_PHY_DOWNSHIFT. Functional
implementation needs to be done in the individual PHY drivers.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raju Lakkaraju 2016-11-17 13:07:23 +01:00 committed by David S. Miller
parent 607c702914
commit 65feddd5b9
1 changed files with 6 additions and 0 deletions
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6
net/core/ethtool.c
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@ -122,6 +122,7 @@ tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
static const char
phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
[ETHTOOL_ID_UNSPEC] = "Unspec",
[ETHTOOL_PHY_DOWNSHIFT] = "phy-downshift",
};
static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
@ -2435,6 +2436,11 @@ static int ethtool_set_per_queue(struct net_device *dev, void __user *useraddr)
static int ethtool_phy_tunable_valid(const struct ethtool_tunable *tuna)
{
switch (tuna->id) {
case ETHTOOL_PHY_DOWNSHIFT:
if (tuna->len != sizeof(u8) ||
tuna->type_id != ETHTOOL_TUNABLE_U8)
return -EINVAL;
break;
default:
return -EINVAL;
}