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igc: Add support for ethtool GET_TS_INFO command

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This command allows igc to report what types of timestamping are
supported. ptp4l uses this to detect if the hardware supports
timestamping.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Vinicius Costa Gomes 2019-12-02 15:19:52 -08:00 committed by Jeff Kirsher
parent 2c344ae245
commit 60dbede0c4
1 changed files with 34 additions and 0 deletions
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34
drivers/net/ethernet/intel/igc/igc_ethtool.c
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@ -1600,6 +1600,39 @@ static int igc_set_channels(struct net_device *netdev,
return 0;
}
static int igc_get_ts_info(struct net_device *dev,
struct ethtool_ts_info *info)
{
struct igc_adapter *adapter = netdev_priv(dev);
if (adapter->ptp_clock)
info->phc_index = ptp_clock_index(adapter->ptp_clock);
else
info->phc_index = -1;
switch (adapter->hw.mac.type) {
case igc_i225:
info->so_timestamping =
SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->tx_types =
BIT(HWTSTAMP_TX_OFF) |
BIT(HWTSTAMP_TX_ON);
info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
return 0;
default:
return -EOPNOTSUPP;
}
}
static u32 igc_get_priv_flags(struct net_device *netdev)
{
struct igc_adapter *adapter = netdev_priv(netdev);
@ -1847,6 +1880,7 @@ static const struct ethtool_ops igc_ethtool_ops = {
.get_rxfh_indir_size = igc_get_rxfh_indir_size,
.get_rxfh = igc_get_rxfh,
.set_rxfh = igc_set_rxfh,
.get_ts_info = igc_get_ts_info,
.get_channels = igc_get_channels,
.set_channels = igc_set_channels,
.get_priv_flags = igc_get_priv_flags,