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mlxsw: spectrum: remove FDB entry in case we get unknown object notification

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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 <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2016-01-07 11:50:30 +01:00 committed by David S. Miller
parent 2fa9d45e16
commit 12f1501e75
1 changed files with 30 additions and 8 deletions
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38
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
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@ -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,