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net/openvswitch/dp_notify.c
1.69 KB
ccb1352e7 net: Add Open vSw... |
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/* * Copyright (c) 2007-2011 Nicira Networks. * * 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 */ #include <linux/netdevice.h> #include <net/genetlink.h> #include "datapath.h" #include "vport-internal_dev.h" #include "vport-netdev.h" static int dp_device_event(struct notifier_block *unused, unsigned long event, void *ptr) { struct net_device *dev = ptr; struct vport *vport; if (ovs_is_internal_dev(dev)) vport = ovs_internal_dev_get_vport(dev); else vport = ovs_netdev_get_vport(dev); if (!vport) return NOTIFY_DONE; switch (event) { case NETDEV_UNREGISTER: if (!ovs_is_internal_dev(dev)) { struct sk_buff *notify; notify = ovs_vport_cmd_build_info(vport, 0, 0, OVS_VPORT_CMD_DEL); ovs_dp_detach_port(vport); if (IS_ERR(notify)) { netlink_set_err(init_net.genl_sock, 0, ovs_dp_vport_multicast_group.id, PTR_ERR(notify)); break; } genlmsg_multicast(notify, 0, ovs_dp_vport_multicast_group.id, GFP_KERNEL); } break; } return NOTIFY_DONE; } struct notifier_block ovs_dp_device_notifier = { .notifier_call = dp_device_event }; |