1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /* 1 /*
3 * Copyright (c) 2007-2012 Nicira, Inc. 2 * Copyright (c) 2007-2012 Nicira, Inc.
>> 3 *
>> 4 * This program is free software; you can redistribute it and/or
>> 5 * modify it under the terms of version 2 of the GNU General Public
>> 6 * License as published by the Free Software Foundation.
>> 7 *
>> 8 * This program is distributed in the hope that it will be useful, but
>> 9 * WITHOUT ANY WARRANTY; without even the implied warranty of
>> 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
>> 11 * General Public License for more details.
>> 12 *
>> 13 * You should have received a copy of the GNU General Public License
>> 14 * along with this program; if not, write to the Free Software
>> 15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
>> 16 * 02110-1301, USA
4 */ 17 */
5 18
6 #include <linux/netdevice.h> 19 #include <linux/netdevice.h>
7 #include <net/genetlink.h> 20 #include <net/genetlink.h>
8 #include <net/netns/generic.h> 21 #include <net/netns/generic.h>
9 22
10 #include "datapath.h" 23 #include "datapath.h"
11 #include "vport-internal_dev.h" 24 #include "vport-internal_dev.h"
12 #include "vport-netdev.h" 25 #include "vport-netdev.h"
13 26
14 static void dp_detach_port_notify(struct vport 27 static void dp_detach_port_notify(struct vport *vport)
15 { 28 {
16 struct sk_buff *notify; 29 struct sk_buff *notify;
17 struct datapath *dp; 30 struct datapath *dp;
18 31
19 dp = vport->dp; 32 dp = vport->dp;
20 notify = ovs_vport_cmd_build_info(vpor 33 notify = ovs_vport_cmd_build_info(vport, ovs_dp_get_net(dp),
21 0, 0 34 0, 0, OVS_VPORT_CMD_DEL);
22 ovs_dp_detach_port(vport); 35 ovs_dp_detach_port(vport);
23 if (IS_ERR(notify)) { 36 if (IS_ERR(notify)) {
24 genl_set_err(&dp_vport_genl_fa 37 genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0,
25 0, PTR_ERR(notify 38 0, PTR_ERR(notify));
26 return; 39 return;
27 } 40 }
28 41
29 genlmsg_multicast_netns(&dp_vport_genl 42 genlmsg_multicast_netns(&dp_vport_genl_family,
30 ovs_dp_get_net 43 ovs_dp_get_net(dp), notify, 0,
31 0, GFP_KERNEL) 44 0, GFP_KERNEL);
32 } 45 }
33 46
34 void ovs_dp_notify_wq(struct work_struct *work 47 void ovs_dp_notify_wq(struct work_struct *work)
35 { 48 {
36 struct ovs_net *ovs_net = container_of 49 struct ovs_net *ovs_net = container_of(work, struct ovs_net, dp_notify_work);
37 struct datapath *dp; 50 struct datapath *dp;
38 51
39 ovs_lock(); 52 ovs_lock();
40 list_for_each_entry(dp, &ovs_net->dps, 53 list_for_each_entry(dp, &ovs_net->dps, list_node) {
41 int i; 54 int i;
42 55
43 for (i = 0; i < DP_VPORT_HASH_ 56 for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
44 struct vport *vport; 57 struct vport *vport;
45 struct hlist_node *n; 58 struct hlist_node *n;
46 59
47 hlist_for_each_entry_s 60 hlist_for_each_entry_safe(vport, n, &dp->ports[i], dp_hash_node) {
48 if (vport->ops 61 if (vport->ops->type == OVS_VPORT_TYPE_INTERNAL)
49 contin 62 continue;
50 63
51 if (!(netif_is !! 64 if (!(vport->dev->priv_flags & IFF_OVS_DATAPATH))
52 dp_det 65 dp_detach_port_notify(vport);
53 } 66 }
54 } 67 }
55 } 68 }
56 ovs_unlock(); 69 ovs_unlock();
57 } 70 }
58 71
59 static int dp_device_event(struct notifier_blo 72 static int dp_device_event(struct notifier_block *unused, unsigned long event,
60 void *ptr) 73 void *ptr)
61 { 74 {
62 struct ovs_net *ovs_net; 75 struct ovs_net *ovs_net;
63 struct net_device *dev = netdev_notifi 76 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
64 struct vport *vport = NULL; 77 struct vport *vport = NULL;
65 78
66 if (!ovs_is_internal_dev(dev)) 79 if (!ovs_is_internal_dev(dev))
67 vport = ovs_netdev_get_vport(d 80 vport = ovs_netdev_get_vport(dev);
68 81
69 if (!vport) 82 if (!vport)
70 return NOTIFY_DONE; 83 return NOTIFY_DONE;
71 84
72 if (event == NETDEV_UNREGISTER) { 85 if (event == NETDEV_UNREGISTER) {
73 /* upper_dev_unlink and decrem 86 /* upper_dev_unlink and decrement promisc immediately */
74 ovs_netdev_detach_dev(vport); 87 ovs_netdev_detach_dev(vport);
75 88
76 /* schedule vport destroy, dev 89 /* schedule vport destroy, dev_put and genl notification */
77 ovs_net = net_generic(dev_net( 90 ovs_net = net_generic(dev_net(dev), ovs_net_id);
78 queue_work(system_wq, &ovs_net 91 queue_work(system_wq, &ovs_net->dp_notify_work);
79 } 92 }
80 93
81 return NOTIFY_DONE; 94 return NOTIFY_DONE;
82 } 95 }
83 96
84 struct notifier_block ovs_dp_device_notifier = 97 struct notifier_block ovs_dp_device_notifier = {
85 .notifier_call = dp_device_event 98 .notifier_call = dp_device_event
86 }; 99 };
87 100
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