diff options
author | Jiri Pirko <jiri@mellanox.com> | 2015-12-03 12:12:30 +0100 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2015-12-03 11:49:29 -0500 |
commit | 745812065cf302ad11bf63bcbdbd0ff41af0e36a (patch) | |
tree | 0bf3c28491ba01fb85311e4550c8637614539e3e | |
parent | 8a1ab5d766396aad0e60cc8796646a1171b419c8 (diff) | |
download | op-kernel-dev-745812065cf302ad11bf63bcbdbd0ff41af0e36a.zip op-kernel-dev-745812065cf302ad11bf63bcbdbd0ff41af0e36a.tar.gz |
mlxsw: spectrum: Implement LAG tx enabled lower state change
Enabling/disabling TX on a LAG port means enabling/disabling distribution
in our HW.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 81 |
1 files changed, 79 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 7d1f0a8..3ec07b9 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -2108,8 +2108,47 @@ static int mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, return 0; } -static int mlxsw_sp_netdevice_port_event(struct net_device *dev, - unsigned long event, void *ptr) +static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port, + u16 lag_id) +{ + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; + char sldr_pl[MLXSW_REG_SLDR_LEN]; + + mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id, + mlxsw_sp_port->local_port); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); +} + +static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, + u16 lag_id) +{ + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; + char sldr_pl[MLXSW_REG_SLDR_LEN]; + + mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id, + mlxsw_sp_port->local_port); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); +} + +static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port, + bool lag_tx_enabled) +{ + if (lag_tx_enabled) + return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, + mlxsw_sp_port->lag_id); + else + return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port, + mlxsw_sp_port->lag_id); +} + +static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port, + struct netdev_lag_lower_state_info *info) +{ + return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled); +} + +static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, + unsigned long event, void *ptr) { struct netdev_notifier_changeupper_info *info; struct mlxsw_sp_port *mlxsw_sp_port; @@ -2176,6 +2215,44 @@ static int mlxsw_sp_netdevice_port_event(struct net_device *dev, return NOTIFY_DONE; } +static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev, + unsigned long event, void *ptr) +{ + struct netdev_notifier_changelowerstate_info *info; + struct mlxsw_sp_port *mlxsw_sp_port; + int err; + + mlxsw_sp_port = netdev_priv(dev); + info = ptr; + + switch (event) { + case NETDEV_CHANGELOWERSTATE: + if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) { + err = mlxsw_sp_port_lag_changed(mlxsw_sp_port, + info->lower_state_info); + if (err) + netdev_err(dev, "Failed to reflect link aggregation lower state change\n"); + } + break; + } + + return NOTIFY_DONE; +} + +static int mlxsw_sp_netdevice_port_event(struct net_device *dev, + unsigned long event, void *ptr) +{ + switch (event) { + case NETDEV_PRECHANGEUPPER: + case NETDEV_CHANGEUPPER: + return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr); + case NETDEV_CHANGELOWERSTATE: + return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr); + } + + return NOTIFY_DONE; +} + static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev, unsigned long event, void *ptr) { |