diff options
| author | Richard Cochran <richardcochran@gmail.com> | 2019-12-25 18:16:19 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-12-25 19:51:34 -0800 |
| commit | b6fd7b96366769651ab23988607ce9c5c9042cdb (patch) | |
| tree | 7af5ff4f17fbc32e9549d5df39e1d0d380597053 /drivers/net/ethernet/microchip/lan743x_ptp.c | |
| parent | 1dca22b1842136f57e9bd60fefd1715c22ff1874 (diff) | |
net: Introduce peer to peer one step PTP time stamping.
The 1588 standard defines one step operation for both Sync and
PDelay_Resp messages. Up until now, hardware with P2P one step has
been rare, and kernel support was lacking. This patch adds support of
the mode in anticipation of new hardware developments.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/microchip/lan743x_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan743x_ptp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c index afe52463dc57..9399f6a98748 100644 --- a/drivers/net/ethernet/microchip/lan743x_ptp.c +++ b/drivers/net/ethernet/microchip/lan743x_ptp.c @@ -1265,6 +1265,9 @@ int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) lan743x_ptp_set_sync_ts_insert(adapter, true); break; + case HWTSTAMP_TX_ONESTEP_P2P: + ret = -ERANGE; + break; default: netif_warn(adapter, drv, adapter->netdev, " tx_type = %d, UNKNOWN\n", config.tx_type); |