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net: hns3: check 1000M half for hns3_ethtool_ops.set_link_ksettings 

Hip08 SOC does not support 1000M half, this patch adds 1000M half
check for hns3_ethtool_ops.set_link_ksettings, so the user can not
set 1000M half by ethtool.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Peng Li 2019-04-04 16:17:48 +08:00 committed by David S. Miller
parent b571bc623e
commit 95dbab9f36
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
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@ -648,6 +648,10 @@ static int hns3_get_link_ksettings(struct net_device *netdev,
static int hns3_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *cmd)
{
/* Chip doesn't support this mode. */
if (cmd->base.speed == SPEED_1000 && cmd->base.duplex == DUPLEX_HALF)
return -EINVAL;
/* Only support ksettings_set for netdev with phy attached for now */
if (netdev->phydev)
return phy_ethtool_ksettings_set(netdev->phydev, cmd);