openvswitch: Add support for network namespaces.

Following patch adds support for network namespace to openvswitch.
Since it must release devices when namespaces are destroyed, a
side effect of this patch is that the module no longer keeps a
refcount but instead cleans up any state when it is unloaded.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 4061b9ee07f7..5d460c37df07 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -144,7 +144,7 @@ static void do_setup(struct net_device *netdev)
         netdev->tx_queue_len = 0;
 
         netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_FRAGLIST |
-                                NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_TSO;
+                           NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_TSO;
 
         netdev->vlan_features = netdev->features;
         netdev->features |= NETIF_F_HW_VLAN_TX;
@@ -175,9 +175,14 @@ static struct vport *internal_dev_create(const struct vport_parms *parms)
                 goto error_free_vport;
         }
 
+        dev_net_set(netdev_vport->dev, ovs_dp_get_net(vport->dp));
         internal_dev = internal_dev_priv(netdev_vport->dev);
         internal_dev->vport = vport;
 
+        /* Restrict bridge port to current netns. */
+        if (vport->port_no == OVSP_LOCAL)
+                netdev_vport->dev->features |= NETIF_F_NETNS_LOCAL;
+
         err = register_netdevice(netdev_vport->dev);
         if (err)
                 goto error_free_netdev;