[PATCH net-next v4 5/9] net: mscc: ocelot: Handle SWITCHDEV_PORT_ATTR_GET/SET

[Florian Fainelli]

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

Acked-by: Jiri Pirko <j...@mellanox.com>
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 drivers/net/ethernet/mscc/ocelot.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/net/ethernet/mscc/ocelot.c 
b/drivers/net/ethernet/mscc/ocelot.c
index 195306d05bcd..2708809713ed 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1582,6 +1582,24 @@ struct notifier_block ocelot_netdevice_nb __read_mostly 
= {
 };
 EXPORT_SYMBOL(ocelot_netdevice_nb);
 
+static int
+ocelot_switchdev_port_attr_event(unsigned long event,
+               struct net_device *netdev,
+               struct switchdev_notifier_port_attr_info *port_attr_info)
+{
+       int err = -EOPNOTSUPP;
+
+       switch (event) {
+       case SWITCHDEV_PORT_ATTR_SET:
+               err = ocelot_port_attr_set(netdev, port_attr_info->attr,
+                                          port_attr_info->trans);
+               break;
+       }
+
+       port_attr_info->handled = true;
+       return notifier_from_errno(err);
+}
+
 static int ocelot_switchdev_blocking_event(struct notifier_block *unused,
                                           unsigned long event, void *ptr)
 {
@@ -1600,6 +1618,9 @@ static int ocelot_switchdev_blocking_event(struct 
notifier_block *unused,
                                                    ocelot_netdevice_dev_check,
                                                    ocelot_port_obj_del);
                return notifier_from_errno(err);
+       case SWITCHDEV_PORT_ATTR_SET: /* fall through */
+       case SWITCHDEV_PORT_ATTR_GET:
+               return ocelot_switchdev_port_attr_event(event, dev, ptr);
        }
 
        return NOTIFY_DONE;
-- 
2.17.1