diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c index dd7c94dd4c01..25d96bedf243 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c @@ -1385,3 +1385,37 @@ void mlxsw_sp2_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state_common) mlxsw_sp_ptp_traps_unset(mlxsw_sp); kfree(ptp_state); } + +int mlxsw_sp_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core, + struct mlxsw_sp_port *mlxsw_sp_port, + struct sk_buff *skb, + const struct mlxsw_tx_info *tx_info) +{ + mlxsw_sp_txhdr_construct(skb, tx_info); + return 0; +} + +int mlxsw_sp2_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core, + struct mlxsw_sp_port *mlxsw_sp_port, + struct sk_buff *skb, + const struct mlxsw_tx_info *tx_info) +{ + /* In Spectrum-2 and Spectrum-3, in order for PTP event packets to have + * their correction field correctly set on the egress port they must be + * transmitted as data packets. Such packets ingress the ASIC via the + * CPU port and must have a VLAN tag, as the CPU port is not configured + * with a PVID. Push the default VLAN (4095), which is configured as + * egress untagged on all the ports. + */ + if (!skb_vlan_tagged(skb)) { + skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q), + MLXSW_SP_DEFAULT_VID); + if (!skb) { + this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); + return -ENOMEM; + } + } + + return mlxsw_sp_txhdr_ptp_data_construct(mlxsw_core, mlxsw_sp_port, skb, + tx_info); +} |