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gerrit-public.fairphone.software / kernel / msm-4.9 / bc66154efe163a80f269d448572f7906756e9338 / . / include / linux / if_macvlan.h
blob: e24ce6ea1fa31440bd8b34758770125a043cb24f [file] [log] [blame]
Patrick McHardyb863ceb2007-07-14 18:55:06 -0700[diff] [blame]1#ifndef _LINUX_IF_MACVLAN_H
2#define _LINUX_IF_MACVLAN_H
3
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]4#include <linux/if_link.h>
5#include <linux/list.h>
6#include <linux/netdevice.h>
7#include <linux/netlink.h>
8#include <net/netlink.h>
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame^]9#include <linux/u64_stats_sync.h>
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]10
Arnd Bergmann501c7742010-02-18 05:46:50 +0000[diff] [blame]11#if defined(CONFIG_MACVTAP) || defined(CONFIG_MACVTAP_MODULE)
12struct socket *macvtap_get_socket(struct file *);
13#else
14#include <linux/err.h>
15#include <linux/errno.h>
16struct file;
17struct socket;
18static inline struct socket *macvtap_get_socket(struct file *f)
19{
20 return ERR_PTR(-EINVAL);
21}
22#endif /* CONFIG_MACVTAP */
23
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]24struct macvlan_port;
25struct macvtap_queue;
26
27/**
28 * struct macvlan_rx_stats - MACVLAN percpu rx stats
29 * @rx_packets: number of received packets
30 * @rx_bytes: number of received bytes
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame^]31 * @rx_multicast: number of received multicast packets
32 * @syncp: synchronization point for 64bit counters
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]33 * @rx_errors: number of errors
34 */
35struct macvlan_rx_stats {
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame^]36 u64 rx_packets;
37 u64 rx_bytes;
38 u64 rx_multicast;
39 struct u64_stats_sync syncp;
40 unsigned long rx_errors;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]41};
42
43struct macvlan_dev {
44 struct net_device *dev;
45 struct list_head list;
46 struct hlist_node hlist;
47 struct macvlan_port *port;
48 struct net_device *lowerdev;
Tejun Heo47d74272010-02-16 15:21:08 +0000[diff] [blame]49 struct macvlan_rx_stats __percpu *rx_stats;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]50 enum macvlan_mode mode;
51 int (*receive)(struct sk_buff *skb);
52 int (*forward)(struct net_device *dev, struct sk_buff *skb);
Arnd Bergmann20d29d72010-01-30 12:24:26 +0000[diff] [blame]53 struct macvtap_queue *tap;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]54};
55
56static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
57 unsigned int len, bool success,
58 bool multicast)
59{
60 struct macvlan_rx_stats *rx_stats;
61
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame^]62 rx_stats = this_cpu_ptr(vlan->rx_stats);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]63 if (likely(success)) {
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame^]64 u64_stats_update_begin(&rx_stats->syncp);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]65 rx_stats->rx_packets++;;
66 rx_stats->rx_bytes += len;
67 if (multicast)
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame^]68 rx_stats->rx_multicast++;
69 u64_stats_update_end(&rx_stats->syncp);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]70 } else {
71 rx_stats->rx_errors++;
72 }
73}
74
75extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
76 struct nlattr *tb[], struct nlattr *data[],
77 int (*receive)(struct sk_buff *skb),
78 int (*forward)(struct net_device *dev,
79 struct sk_buff *skb));
80
81extern void macvlan_count_rx(const struct macvlan_dev *vlan,
82 unsigned int len, bool success,
83 bool multicast);
84
85extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
86
87extern int macvlan_link_register(struct rtnl_link_ops *ops);
88
89extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
90 struct net_device *dev);
91
Patrick McHardyb863ceb2007-07-14 18:55:06 -0700[diff] [blame]92#endif /* _LINUX_IF_MACVLAN_H */