diff options
| author | Martin Habets <mhabets@solarflare.com> | 2018-01-25 17:26:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-25 16:05:14 -0500 |
| commit | 6aa47c87cb053670bb636fb2001deb4a868f9486 (patch) | |
| tree | a6b7bac11b202e278b03e88084c3f3d929f115c3 /drivers/net/ethernet/sfc/ptp.c | |
| parent | 2935e3c38228ad9bf073eeb0eedff5849eea63db (diff) | |
sfc: only advertise TX timestamping if we have the license for it
We check the license for TX hardware timestamping capability.
The PTP probe will have enabled PTP sync events from the adapter. If
later, at TX queue init, it turns out we do not have the license, we
don't need the sync events either.
Signed-off-by: Martin Habets <mhabets@solarflare.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/ptp.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ptp.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 87a72f37141b..cbfc171d90ee 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1657,6 +1657,17 @@ void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info) ts_info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE | SOF_TIMESTAMPING_RX_HARDWARE | SOF_TIMESTAMPING_RAW_HARDWARE); + /* Check licensed features. If we don't have the license for TX + * timestamps, the NIC will not support them. + */ + if (efx_ptp_use_mac_tx_timestamps(efx)) { + struct efx_ef10_nic_data *nic_data = efx->nic_data; + + if (!(nic_data->licensed_features & + (1 << LICENSED_V3_FEATURES_TX_TIMESTAMPS_LBN))) + ts_info->so_timestamping &= + ~SOF_TIMESTAMPING_TX_HARDWARE; + } if (primary && primary->ptp_data && primary->ptp_data->phc_clock) ts_info->phc_index = ptp_clock_index(primary->ptp_data->phc_clock); |