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| 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/mellanox/mlxsw/spectrum_ptp.c | |
| parent | net: mdio: of: Register discovered MII time stampers. (diff) | |
| download | linux-b6fd7b96366769651ab23988607ce9c5c9042cdb.tar.gz linux-b6fd7b96366769651ab23988607ce9c5c9042cdb.tar.bz2 linux-b6fd7b96366769651ab23988607ce9c5c9042cdb.zip | |
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/mellanox/mlxsw/spectrum_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c index ec2ff3d7f41c..4aaaa4937b1a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c @@ -920,6 +920,7 @@ static int mlxsw_sp_ptp_get_message_types(const struct hwtstamp_config *config, egr_types = 0xff; break; case HWTSTAMP_TX_ONESTEP_SYNC: + case HWTSTAMP_TX_ONESTEP_P2P: return -ERANGE; } |