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

Prepare mlxsw to support receiving notifier events targeting
SWITCHDEV_PORT_ATTR_GET/SET and simply translate that into the existing
mlxsw_sp_port_attr_{set,get} calls.

Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 .../mellanox/mlxsw/spectrum_switchdev.c       | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c 
b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 95e37de3e48f..c6d7bb70e8f2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -3443,6 +3443,26 @@ mlxsw_sp_switchdev_handle_vxlan_obj_del(struct 
net_device *vxlan_dev,
        }
 }
 
+static int
+mlxsw_sp_switchdev_port_attr_event(unsigned long event, struct net_device *dev,
+               struct switchdev_notifier_port_attr_info *port_attr_info)
+{
+       int err = -EOPNOTSUPP;
+
+       switch (event) {
+       case SWITCHDEV_PORT_ATTR_SET:
+               err = mlxsw_sp_port_attr_set(dev, port_attr_info->attr,
+                                            port_attr_info->trans);
+               break;
+       case SWITCHDEV_PORT_ATTR_GET:
+               err = mlxsw_sp_port_attr_get(dev, port_attr_info->attr);
+               break;
+       }
+
+       port_attr_info->handled = true;
+       return notifier_from_errno(err);
+}
+
 static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused,
                                             unsigned long event, void *ptr)
 {
@@ -3466,6 +3486,9 @@ 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:
+       case SWITCHDEV_PORT_ATTR_GET:
+               return mlxsw_sp_switchdev_port_attr_event(event, dev, ptr);
        }
 
        return NOTIFY_DONE;
-- 
2.19.1

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