From 12f1501e7511958b3a7244e24f290803d0a3c41f Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 7 Jan 2016 11:50:30 +0100 Subject: [PATCH] mlxsw: spectrum: remove FDB entry in case we get unknown object notification It may happen that we get notification for FDB entry for object (port, lag, vport), which does not exist. Currently we ignore that, which only causes this being re-sent in next notification. The entry will never disappear. So get rid of it by simply removing it using SFD register. Signed-off-by: Jiri Pirko Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller --- .../mellanox/mlxsw/spectrum_switchdev.c | 38 +++++++++++++++---- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 5150e9e2b718..d64559e4aff7 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -1030,13 +1030,14 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, char mac[ETH_ALEN]; u8 local_port; u16 vid, fid; + bool do_notification = true; int err; mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port); mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n"); - return; + goto just_remove; } if (mlxsw_sp_fid_is_vfid(fid)) { @@ -1047,9 +1048,8 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, vfid); if (!mlxsw_sp_vport) { netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n"); - return; + goto just_remove; } - vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); /* Override the physical port with the vPort. */ mlxsw_sp_port = mlxsw_sp_vport; @@ -1057,17 +1057,28 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, vid = fid; } + adding = adding && mlxsw_sp_port->learning; + +do_fdb_op: err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, - adding && mlxsw_sp_port->learning, true); + adding, true); if (err) { if (net_ratelimit()) netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n"); return; } + if (!do_notification) + return; mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, mlxsw_sp_port->learning_sync, adding, mac, vid, mlxsw_sp_port->dev); + return; + +just_remove: + adding = false; + do_notification = false; + goto do_fdb_op; } static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, @@ -1079,13 +1090,14 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, u16 lag_vid = 0; u16 lag_id; u16 vid, fid; + bool do_notification = true; int err; mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id); mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id); if (!mlxsw_sp_port) { dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n"); - return; + goto just_remove; } if (mlxsw_sp_fid_is_vfid(fid)) { @@ -1096,7 +1108,7 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, vfid); if (!mlxsw_sp_vport) { netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n"); - return; + goto just_remove; } vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); @@ -1107,19 +1119,29 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, vid = fid; } + adding = adding && mlxsw_sp_port->learning; + +do_fdb_op: err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid, - adding && mlxsw_sp_port->learning, - true); + adding, true); if (err) { if (net_ratelimit()) netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n"); return; } + if (!do_notification) + return; mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, mlxsw_sp_port->learning_sync, adding, mac, vid, mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev); + return; + +just_remove: + adding = false; + do_notification = false; + goto do_fdb_op; } static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, -- 2.20.1