openvswitch:: link upper device for port devices

Link upper device properly. That will make IFLA_MASTER filled up.
Set the master to port 0 of the datapath under which the port belongs.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jesse Gross <jesse@nicira.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 5982f3f62835..09d93c13cfd6 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -25,6 +25,7 @@
 #include <linux/llc.h>
 #include <linux/rtnetlink.h>
 #include <linux/skbuff.h>
+#include <linux/openvswitch.h>
 
 #include <net/llc.h>
 
@@ -74,6 +75,15 @@ static rx_handler_result_t netdev_frame_hook(struct sk_buff **pskb)
         return RX_HANDLER_CONSUMED;
 }
 
+static struct net_device *get_dpdev(struct datapath *dp)
+{
+        struct vport *local;
+
+        local = ovs_vport_ovsl(dp, OVSP_LOCAL);
+        BUG_ON(!local);
+        return netdev_vport_priv(local)->dev;
+}
+
 static struct vport *netdev_create(const struct vport_parms *parms)
 {
         struct vport *vport;
@@ -103,10 +113,15 @@ static struct vport *netdev_create(const struct vport_parms *parms)
         }
 
         rtnl_lock();
+        err = netdev_master_upper_dev_link(netdev_vport->dev,
+                                           get_dpdev(vport->dp));
+        if (err)
+                goto error_unlock;
+
         err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
                                          vport);
         if (err)
-                goto error_unlock;
+                goto error_master_upper_dev_unlink;
 
         dev_set_promiscuity(netdev_vport->dev, 1);
         netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
@@ -114,6 +129,8 @@ static struct vport *netdev_create(const struct vport_parms *parms)
 
         return vport;
 
+error_master_upper_dev_unlink:
+        netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
 error_unlock:
         rtnl_unlock();
 error_put:
@@ -140,6 +157,7 @@ static void netdev_destroy(struct vport *vport)
         rtnl_lock();
         netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
         netdev_rx_handler_unregister(netdev_vport->dev);
+        netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
         dev_set_promiscuity(netdev_vport->dev, -1);
         rtnl_unlock();