/*
- * Distributed under the terms of the GNU GPL version 2.
- * Copyright (c) 2007, 2008, 2009 Nicira Networks.
+ * Copyright (c) 2007-2012 Nicira, Inc.
*
- * Significant portions of this file may be copied from parts of the Linux
- * kernel, by Linus Torvalds and others.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
*/
-/* Handle changes to managed devices */
-
#include <linux/netdevice.h>
+#include <net/genetlink.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
#include "datapath.h"
-#include "dp_dev.h"
+#include "vport-internal_dev.h"
+#include "vport-netdev.h"
-static int dp_device_event(struct notifier_block *unused, unsigned long event,
- void *ptr)
+static void dp_detach_port_notify(struct vport *vport)
{
- struct net_device *dev = ptr;
- struct net_bridge_port *p;
+ struct sk_buff *notify;
struct datapath *dp;
- if (is_dp_dev(dev)) {
- struct dp_dev *dp_dev = dp_dev_priv(dev);
- p = dp_dev->dp->ports[dp_dev->port_no];
- } else {
- p = dev->br_port;
+ dp = vport->dp;
+ notify = ovs_vport_cmd_build_info(vport, 0, 0, OVS_VPORT_CMD_DEL);
+ ovs_dp_detach_port(vport);
+ if (IS_ERR(notify)) {
+ genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0,
+ GROUP_ID(&ovs_dp_vport_multicast_group),
+ PTR_ERR(notify));
+ return;
}
- if (!p)
- return NOTIFY_DONE;
- dp = p->dp;
-
- switch (event) {
- case NETDEV_UNREGISTER:
- mutex_lock(&dp->mutex);
- dp_del_port(p);
- mutex_unlock(&dp->mutex);
- break;
-
- case NETDEV_CHANGENAME:
- if (p->port_no != ODPP_LOCAL) {
- mutex_lock(&dp->mutex);
- dp_sysfs_del_if(p);
- dp_sysfs_add_if(p);
- mutex_unlock(&dp->mutex);
+
+ genlmsg_multicast_netns(&dp_vport_genl_family,
+ ovs_dp_get_net(dp), notify, 0,
+ GROUP_ID(&ovs_dp_vport_multicast_group),
+ GFP_KERNEL);
+}
+
+void ovs_dp_notify_wq(struct work_struct *work)
+{
+ struct ovs_net *ovs_net = container_of(work, struct ovs_net, dp_notify_work);
+ struct datapath *dp;
+
+ ovs_lock();
+ list_for_each_entry(dp, &ovs_net->dps, list_node) {
+ int i;
+
+ for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
+ struct vport *vport;
+ struct hlist_node *n;
+
+ hlist_for_each_entry_safe(vport, n, &dp->ports[i], dp_hash_node) {
+ struct netdev_vport *netdev_vport;
+
+ if (vport->ops->type != OVS_VPORT_TYPE_NETDEV)
+ continue;
+
+ netdev_vport = netdev_vport_priv(vport);
+ if (!(ovs_netdev_get_vport(netdev_vport->dev)))
+ dp_detach_port_notify(vport);
+ }
}
- break;
}
+ ovs_unlock();
+}
+
+static int dp_device_event(struct notifier_block *unused, unsigned long event,
+ void *ptr)
+{
+ struct ovs_net *ovs_net;
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct vport *vport = NULL;
+
+ if (!ovs_is_internal_dev(dev))
+ vport = ovs_netdev_get_vport(dev);
+
+ if (!vport)
+ return NOTIFY_DONE;
+
+ if (event == NETDEV_UNREGISTER) {
+ /* upper_dev_unlink and decrement promisc immediately */
+ ovs_netdev_detach_dev(vport);
+
+ /* schedule vport destroy, dev_put and genl notification */
+ ovs_net = net_generic(dev_net(dev), ovs_net_id);
+ queue_work(system_wq, &ovs_net->dp_notify_work);
+ }
+
return NOTIFY_DONE;
}
-struct notifier_block dp_device_notifier = {
+struct notifier_block ovs_dp_device_notifier = {
.notifier_call = dp_device_event
};
git://git.onelab.eu / sliver-openvswitch.git / blobdiff