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net: dsa: mv88e6xxx: assign dynamic FDB to bridges

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Give a new bridge a fresh FDB, assign it to its members, and restore a
fresh FDB to a port leaving a bridge.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2016-02-26 13:16:05 -05:00 committed by David S. Miller
parent 2db9ce1fd9
commit 466dfa0770
1 changed files with 39 additions and 2 deletions
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41
drivers/net/dsa/mv88e6xxx.c
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@ -2093,19 +2093,56 @@ int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
struct net_device *bridge)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
u16 fid;
int i, err;
mutex_lock(&ps->smi_mutex);
/* Get or create the bridge FID and assign it to the port */
for (i = 0; i < ps->num_ports; ++i)
if (ps->ports[i].bridge_dev == bridge)
break;
if (i < ps->num_ports)
err = _mv88e6xxx_port_fid_get(ds, i, &fid);
else
err = _mv88e6xxx_fid_new(ds, &fid);
if (err)
goto unlock;
err = _mv88e6xxx_port_fid_set(ds, port, fid);
if (err)
goto unlock;
ps->ports[port].bridge_dev = bridge;
unlock:
mutex_unlock(&ps->smi_mutex);
return 0;
return err;
}
int mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
u16 fid;
int err;
mutex_lock(&ps->smi_mutex);
/* Give the port a fresh Filtering Information Database */
err = _mv88e6xxx_fid_new(ds, &fid);
if (err)
goto unlock;
err = _mv88e6xxx_port_fid_set(ds, port, fid);
if (err)
goto unlock;
ps->ports[port].bridge_dev = NULL;
unlock:
mutex_unlock(&ps->smi_mutex);
return 0;
return err;
}
static int mv88e6xxx_setup_port_default_vlan(struct dsa_switch *ds, int port)