1ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross/* 2caf2ee14bbc2c6bd73cf0decf576007e0239a482Raju Subramanian * Copyright (c) 2007-2012 Nicira, Inc. 3ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * 4ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * This program is free software; you can redistribute it and/or 5ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * modify it under the terms of version 2 of the GNU General Public 6ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * License as published by the Free Software Foundation. 7ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * 8ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * This program is distributed in the hope that it will be useful, but 9ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * WITHOUT ANY WARRANTY; without even the implied warranty of 10ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * General Public License for more details. 12ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * 13ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * You should have received a copy of the GNU General Public License 14ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * along with this program; if not, write to the Free Software 15ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 16ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross * 02110-1301, USA 17ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross */ 18ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 19ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross#include <linux/netdevice.h> 20ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross#include <net/genetlink.h> 218e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar#include <net/netns/generic.h> 22ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 23ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross#include "datapath.h" 24ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross#include "vport-internal_dev.h" 25ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross#include "vport-netdev.h" 26ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 278e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelarstatic void dp_detach_port_notify(struct vport *vport) 288e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar{ 298e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct sk_buff *notify; 308e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct datapath *dp; 318e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 328e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar dp = vport->dp; 338e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar notify = ovs_vport_cmd_build_info(vport, 0, 0, 348e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar OVS_VPORT_CMD_DEL); 358e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar ovs_dp_detach_port(vport); 368e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar if (IS_ERR(notify)) { 3768eb55031da7c967d954e5f9415cd05f4abdb692Johannes Berg genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0, 382a94fe48f32ccf7321450a2cc07f2b724a444e5bJohannes Berg 0, PTR_ERR(notify)); 398e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar return; 408e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar } 418e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 4268eb55031da7c967d954e5f9415cd05f4abdb692Johannes Berg genlmsg_multicast_netns(&dp_vport_genl_family, 4368eb55031da7c967d954e5f9415cd05f4abdb692Johannes Berg ovs_dp_get_net(dp), notify, 0, 442a94fe48f32ccf7321450a2cc07f2b724a444e5bJohannes Berg 0, GFP_KERNEL); 458e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar} 468e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 478e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelarvoid ovs_dp_notify_wq(struct work_struct *work) 488e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar{ 498e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct ovs_net *ovs_net = container_of(work, struct ovs_net, dp_notify_work); 508e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct datapath *dp; 518e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 528e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar ovs_lock(); 538e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar list_for_each_entry(dp, &ovs_net->dps, list_node) { 548e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar int i; 558e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 568e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) { 578e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct vport *vport; 588e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct hlist_node *n; 598e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 608e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar hlist_for_each_entry_safe(vport, n, &dp->ports[i], dp_hash_node) { 618e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct netdev_vport *netdev_vport; 628e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 638e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar if (vport->ops->type != OVS_VPORT_TYPE_NETDEV) 648e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar continue; 658e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 668e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar netdev_vport = netdev_vport_priv(vport); 67b07c26511e94ab856f3700c56d582c0da36d5b4dAlexei Starovoitov if (!(netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH)) 688e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar dp_detach_port_notify(vport); 698e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar } 708e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar } 718e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar } 728e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar ovs_unlock(); 738e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar} 748e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar 75ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Grossstatic int dp_device_event(struct notifier_block *unused, unsigned long event, 76ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross void *ptr) 77ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross{ 788e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct ovs_net *ovs_net; 79351638e7deeed2ec8ce451b53d33921b3da68f83Jiri Pirko struct net_device *dev = netdev_notifier_info_to_dev(ptr); 808e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar struct vport *vport = NULL; 81ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 828e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar if (!ovs_is_internal_dev(dev)) 83ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross vport = ovs_netdev_get_vport(dev); 84ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 85ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross if (!vport) 86ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross return NOTIFY_DONE; 87ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 888e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar if (event == NETDEV_UNREGISTER) { 89b07c26511e94ab856f3700c56d582c0da36d5b4dAlexei Starovoitov /* upper_dev_unlink and decrement promisc immediately */ 90b07c26511e94ab856f3700c56d582c0da36d5b4dAlexei Starovoitov ovs_netdev_detach_dev(vport); 91b07c26511e94ab856f3700c56d582c0da36d5b4dAlexei Starovoitov 92b07c26511e94ab856f3700c56d582c0da36d5b4dAlexei Starovoitov /* schedule vport destroy, dev_put and genl notification */ 938e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar ovs_net = net_generic(dev_net(dev), ovs_net_id); 948e4e1713e4978447c5f799aa668dcc6d2cb0dee9Pravin B Shelar queue_work(system_wq, &ovs_net->dp_notify_work); 95ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross } 96ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 97ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross return NOTIFY_DONE; 98ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross} 99ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross 100ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Grossstruct notifier_block ovs_dp_device_notifier = { 101ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross .notifier_call = dp_device_event 102ccb1352e76cff0524e7ccb2074826a092dd13016Jesse Gross}; 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