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net: dsa: add VLAN notifier

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Add two new DSA_NOTIFIER_VLAN_ADD and DSA_NOTIFIER_VLAN_DEL events to
notify not only a single switch, but all switches of a the fabric when
an VLAN entry is added or removed.

For the moment, keep the current behavior and ignore other switches.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-05-19 17:00:55 -04:00 • committed by David S. Miller
parent 8ae5bcdc5d
commit d0c627b874
3 changed files with 66 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

43
net/dsa/switch.c
View file

@ -158,6 +158,43 @@ static int dsa_switch_mdb_del(struct dsa_switch *ds,
return ds->ops->port_mdb_del(ds, info->port, mdb);
}
static int dsa_switch_vlan_add(struct dsa_switch *ds,
struct dsa_notifier_vlan_info *info)
{
const struct switchdev_obj_port_vlan *vlan = info->vlan;
struct switchdev_trans *trans = info->trans;
/* Do not care yet about other switch chips of the fabric */
if (ds->index != info->sw_index)
return 0;
if (switchdev_trans_ph_prepare(trans)) {
if (!ds->ops->port_vlan_prepare || !ds->ops->port_vlan_add)
return -EOPNOTSUPP;
return ds->ops->port_vlan_prepare(ds, info->port, vlan, trans);
}
ds->ops->port_vlan_add(ds, info->port, vlan, trans);
return 0;
}
static int dsa_switch_vlan_del(struct dsa_switch *ds,
struct dsa_notifier_vlan_info *info)
{
const struct switchdev_obj_port_vlan *vlan = info->vlan;
/* Do not care yet about other switch chips of the fabric */
if (ds->index != info->sw_index)
return 0;
if (!ds->ops->port_vlan_del)
return -EOPNOTSUPP;
return ds->ops->port_vlan_del(ds, info->port, vlan);
}
static int dsa_switch_event(struct notifier_block *nb,
unsigned long event, void *info)
{
@ -186,6 +223,12 @@ static int dsa_switch_event(struct notifier_block *nb,
case DSA_NOTIFIER_MDB_DEL:
err = dsa_switch_mdb_del(ds, info);
break;
case DSA_NOTIFIER_VLAN_ADD:
err = dsa_switch_vlan_add(ds, info);
break;
case DSA_NOTIFIER_VLAN_DEL:
err = dsa_switch_vlan_del(ds, info);
break;
default:
err = -EOPNOTSUPP;
break;