1 // SPDX-License-Identifier: GPL-2.0-only 1
2 /*
3 * Copyright (c) 2007-2012 Nicira, Inc.
4 */
5
6 #include <linux/netdevice.h>
7 #include <net/genetlink.h>
8 #include <net/netns/generic.h>
9
10 #include "datapath.h"
11 #include "vport-internal_dev.h"
12 #include "vport-netdev.h"
13
14 static void dp_detach_port_notify(struct vport
15 {
16 struct sk_buff *notify;
17 struct datapath *dp;
18
19 dp = vport->dp;
20 notify = ovs_vport_cmd_build_info(vpor
21 0, 0
22 ovs_dp_detach_port(vport);
23 if (IS_ERR(notify)) {
24 genl_set_err(&dp_vport_genl_fa
25 0, PTR_ERR(notify
26 return;
27 }
28
29 genlmsg_multicast_netns(&dp_vport_genl
30 ovs_dp_get_net
31 0, GFP_KERNEL)
32 }
33
34 void ovs_dp_notify_wq(struct work_struct *work
35 {
36 struct ovs_net *ovs_net = container_of
37 struct datapath *dp;
38
39 ovs_lock();
40 list_for_each_entry(dp, &ovs_net->dps,
41 int i;
42
43 for (i = 0; i < DP_VPORT_HASH_
44 struct vport *vport;
45 struct hlist_node *n;
46
47 hlist_for_each_entry_s
48 if (vport->ops
49 contin
50
51 if (!(netif_is
52 dp_det
53 }
54 }
55 }
56 ovs_unlock();
57 }
58
59 static int dp_device_event(struct notifier_blo
60 void *ptr)
61 {
62 struct ovs_net *ovs_net;
63 struct net_device *dev = netdev_notifi
64 struct vport *vport = NULL;
65
66 if (!ovs_is_internal_dev(dev))
67 vport = ovs_netdev_get_vport(d
68
69 if (!vport)
70 return NOTIFY_DONE;
71
72 if (event == NETDEV_UNREGISTER) {
73 /* upper_dev_unlink and decrem
74 ovs_netdev_detach_dev(vport);
75
76 /* schedule vport destroy, dev
77 ovs_net = net_generic(dev_net(
78 queue_work(system_wq, &ovs_net
79 }
80
81 return NOTIFY_DONE;
82 }
83
84 struct notifier_block ovs_dp_device_notifier =
85 .notifier_call = dp_device_event
86 };
87
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