Commit | Line | Data |
---|---|---|
c9422999 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
ccb1352e | 2 | /* |
caf2ee14 | 3 | * Copyright (c) 2007-2012 Nicira, Inc. |
ccb1352e JG |
4 | */ |
5 | ||
6 | #include <linux/netdevice.h> | |
7 | #include <net/genetlink.h> | |
8e4e1713 | 8 | #include <net/netns/generic.h> |
ccb1352e JG |
9 | |
10 | #include "datapath.h" | |
11 | #include "vport-internal_dev.h" | |
12 | #include "vport-netdev.h" | |
13 | ||
8e4e1713 PS |
14 | static void dp_detach_port_notify(struct vport *vport) |
15 | { | |
16 | struct sk_buff *notify; | |
17 | struct datapath *dp; | |
18 | ||
19 | dp = vport->dp; | |
9354d452 JB |
20 | notify = ovs_vport_cmd_build_info(vport, ovs_dp_get_net(dp), |
21 | 0, 0, OVS_VPORT_CMD_DEL); | |
8e4e1713 PS |
22 | ovs_dp_detach_port(vport); |
23 | if (IS_ERR(notify)) { | |
68eb5503 | 24 | genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0, |
2a94fe48 | 25 | 0, PTR_ERR(notify)); |
8e4e1713 PS |
26 | return; |
27 | } | |
28 | ||
68eb5503 JB |
29 | genlmsg_multicast_netns(&dp_vport_genl_family, |
30 | ovs_dp_get_net(dp), notify, 0, | |
2a94fe48 | 31 | 0, GFP_KERNEL); |
8e4e1713 PS |
32 | } |
33 | ||
34 | void ovs_dp_notify_wq(struct work_struct *work) | |
35 | { | |
36 | struct ovs_net *ovs_net = container_of(work, struct ovs_net, dp_notify_work); | |
37 | struct datapath *dp; | |
38 | ||
39 | ovs_lock(); | |
40 | list_for_each_entry(dp, &ovs_net->dps, list_node) { | |
41 | int i; | |
42 | ||
43 | for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) { | |
44 | struct vport *vport; | |
45 | struct hlist_node *n; | |
46 | ||
47 | hlist_for_each_entry_safe(vport, n, &dp->ports[i], dp_hash_node) { | |
13175303 | 48 | if (vport->ops->type == OVS_VPORT_TYPE_INTERNAL) |
8e4e1713 PS |
49 | continue; |
50 | ||
44e37259 | 51 | if (!(netif_is_ovs_port(vport->dev))) |
8e4e1713 PS |
52 | dp_detach_port_notify(vport); |
53 | } | |
54 | } | |
55 | } | |
56 | ovs_unlock(); | |
57 | } | |
58 | ||
ccb1352e JG |
59 | static int dp_device_event(struct notifier_block *unused, unsigned long event, |
60 | void *ptr) | |
61 | { | |
8e4e1713 | 62 | struct ovs_net *ovs_net; |
351638e7 | 63 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
8e4e1713 | 64 | struct vport *vport = NULL; |
ccb1352e | 65 | |
8e4e1713 | 66 | if (!ovs_is_internal_dev(dev)) |
ccb1352e JG |
67 | vport = ovs_netdev_get_vport(dev); |
68 | ||
69 | if (!vport) | |
70 | return NOTIFY_DONE; | |
71 | ||
8e4e1713 | 72 | if (event == NETDEV_UNREGISTER) { |
b07c2651 AS |
73 | /* upper_dev_unlink and decrement promisc immediately */ |
74 | ovs_netdev_detach_dev(vport); | |
75 | ||
76 | /* schedule vport destroy, dev_put and genl notification */ | |
8e4e1713 PS |
77 | ovs_net = net_generic(dev_net(dev), ovs_net_id); |
78 | queue_work(system_wq, &ovs_net->dp_notify_work); | |
ccb1352e JG |
79 | } |
80 | ||
81 | return NOTIFY_DONE; | |
82 | } | |
83 | ||
84 | struct notifier_block ovs_dp_device_notifier = { | |
85 | .notifier_call = dp_device_event | |
86 | }; |