diff options
| author | Vinicius Costa Gomes <vinicius.gomes@intel.com> | 2019-12-02 15:19:53 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-01-06 15:02:45 -0800 |
| commit | a299df3524eabc1def8e93bf005b07ea396ff2bd (patch) | |
| tree | b8f927ed92a125dfd4c3d1b5845175ccc4976419 /drivers/net/ethernet/intel/igc/igc_ptp.c | |
| parent | 60dbede0c4f3d7b1a1f56d1f91bbca3c5a73f7f5 (diff) | |
igc: Use Start of Packet signal from PHY for timestamping
For better accuracy, i225 is able to do timestamping using the Start of
Packet signal from the PHY.
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>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_ptp.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c index 79ffb833aa80..693506587198 100644 --- a/drivers/net/ethernet/intel/igc/igc_ptp.c +++ b/drivers/net/ethernet/intel/igc/igc_ptp.c @@ -368,6 +368,7 @@ static int igc_ptp_set_timestamp_mode(struct igc_adapter *adapter, if (tsync_rx_ctl) { tsync_rx_ctl = IGC_TSYNCRXCTL_ENABLED; tsync_rx_ctl |= IGC_TSYNCRXCTL_TYPE_ALL; + tsync_rx_ctl |= IGC_TSYNCRXCTL_RXSYNSIG; config->rx_filter = HWTSTAMP_FILTER_ALL; is_l2 = true; is_l4 = true; @@ -384,8 +385,10 @@ static int igc_ptp_set_timestamp_mode(struct igc_adapter *adapter, } } - if (tsync_tx_ctl) + if (tsync_tx_ctl) { tsync_tx_ctl = IGC_TSYNCTXCTL_ENABLED; + tsync_tx_ctl |= IGC_TSYNCTXCTL_TXSYNSIG; + } /* enable/disable TX */ regval = rd32(IGC_TSYNCTXCTL); |