switchdev: Adding complete operation to deferred switchdev ops

When using switchdev deferred operation (SWITCHDEV_F_DEFER), the operation
is executed in different context and the application doesn't have any way
to get the operation real status.

Adding a completion callback fixes that. This patch adds fields to
switchdev_attr and switchdev_obj "complete_priv" field which is used by
the "complete" callback.

Application can set a complete function which will be called once the
operation executed.

Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 2b9b98f1c2ff..b7e01d88bdc5 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -305,6 +305,8 @@ static void switchdev_port_attr_set_deferred(struct net_device *dev,
         if (err && err != -EOPNOTSUPP)
                 netdev_err(dev, "failed (err=%d) to set attribute (id=%d)\n",
                            err, attr->id);
+        if (attr->complete)
+                attr->complete(dev, err, attr->complete_priv);
 }
 
 static int switchdev_port_attr_set_defer(struct net_device *dev,
@@ -434,6 +436,8 @@ static void switchdev_port_obj_add_deferred(struct net_device *dev,
         if (err && err != -EOPNOTSUPP)
                 netdev_err(dev, "failed (err=%d) to add object (id=%d)\n",
                            err, obj->id);
+        if (obj->complete)
+                obj->complete(dev, err, obj->complete_priv);
 }
 
 static int switchdev_port_obj_add_defer(struct net_device *dev,
@@ -502,6 +506,8 @@ static void switchdev_port_obj_del_deferred(struct net_device *dev,
         if (err && err != -EOPNOTSUPP)
                 netdev_err(dev, "failed (err=%d) to del object (id=%d)\n",
                            err, obj->id);
+        if (obj->complete)
+                obj->complete(dev, err, obj->complete_priv);
 }
 
 static int switchdev_port_obj_del_defer(struct net_device *dev,