[PATCH net-next 4/8] mlxsw: spectrum_switchdev: Handle SWITCHDEV_PORT_ATTR_SET

[Florian Fainelli]

Following patches will change the way we communicate setting a port's
attribute and use a notifier to perform those tasks.

Prepare mlxsw to support receiving notifier events targeting
SWITCHDEV_PORT_ATTR_SET and utilize the switchdev_handle_port_attr_set()
to handle stacking of devices.

Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 .../net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c 
b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 766f5b5f1cf5..c1aedfea3a31 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -3123,6 +3123,13 @@ static int mlxsw_sp_switchdev_event(struct 
notifier_block *unused,
        struct net_device *br_dev;
        int err;
 
+       if (event == SWITCHDEV_PORT_ATTR_SET) {
+               err = switchdev_handle_port_attr_set(dev, ptr,
+                                                    mlxsw_sp_port_dev_check,
+                                                    mlxsw_sp_port_attr_set);
+               return notifier_from_errno(err);
+       }
+
        /* Tunnel devices are not our uppers, so check their master instead */
        br_dev = netdev_master_upper_dev_get_rcu(dev);
        if (!br_dev)
@@ -3446,6 +3453,11 @@ static int mlxsw_sp_switchdev_blocking_event(struct 
notifier_block *unused,
                                                        mlxsw_sp_port_dev_check,
                                                        mlxsw_sp_port_obj_del);
                return notifier_from_errno(err);
+       case SWITCHDEV_PORT_ATTR_SET:
+               err = switchdev_handle_port_attr_set(dev, ptr,
+                                                    mlxsw_sp_port_dev_check,
+                                                    mlxsw_sp_port_attr_set);
+               return notifier_from_errno(err);
        }
 
        return NOTIFY_DONE;
-- 
2.17.1