Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 74581206 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

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: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8a1ab5d7

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

+79 −2
Original line number Diff line number Diff line
@@ -2108,7 +2108,46 @@ 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,

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;
@@ -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)

{