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gerrit-public.fairphone.software / kernel / msm-4.19 / 4eb1f66dce6c4dc28dd90a7ffbe6b2b1cb08aa4e / . / include / linux / if_macvlan.h
blob: 6b2c7cf352a5582aff86da52f4feac7ae7d208e4 [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>
Li RongQingcdf3e272014-01-04 14:22:34 +0800[diff] [blame]5#include <linux/if_vlan.h>
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]6#include <linux/list.h>
7#include <linux/netdevice.h>
8#include <linux/netlink.h>
9#include <net/netlink.h>
Eric Dumazetbc661542010-06-24 00:54:21 +0000[diff] [blame]10#include <linux/u64_stats_sync.h>
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]11
Jason Wang1d2f41e2013-06-05 23:54:35 +0000[diff] [blame]12#if IS_ENABLED(CONFIG_MACVTAP)
Arnd Bergmann501c7742010-02-18 05:46:50 +0000[diff] [blame]13struct socket *macvtap_get_socket(struct file *);
14#else
15#include <linux/err.h>
16#include <linux/errno.h>
17struct file;
18struct socket;
19static inline struct socket *macvtap_get_socket(struct file *f)
20{
21 return ERR_PTR(-EINVAL);
22}
23#endif /* CONFIG_MACVTAP */
24
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]25struct macvlan_port;
26struct macvtap_queue;
27
Krishna Kumar1565c7c2010-08-04 06:15:59 +0000[diff] [blame]28/*
29 * Maximum times a macvtap device can be opened. This can be used to
30 * configure the number of receive queue, e.g. for multiqueue virtio.
31 */
Jason Wangf0afce02013-06-05 23:54:37 +0000[diff] [blame]32#define MAX_MACVTAP_QUEUES 16
Krishna Kumar1565c7c2010-08-04 06:15:59 +0000[diff] [blame]33
Eric Dumazetcd431e72013-02-05 20:22:50 +0000[diff] [blame]34#define MACVLAN_MC_FILTER_BITS 8
35#define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
36
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]37struct macvlan_dev {
38 struct net_device *dev;
39 struct list_head list;
40 struct hlist_node hlist;
41 struct macvlan_port *port;
42 struct net_device *lowerdev;
John Fastabenda6cc0cf2013-11-06 09:54:46 -0800[diff] [blame]43 void *fwd_priv;
Li RongQingcdf3e272014-01-04 14:22:34 +0800[diff] [blame]44 struct vlan_pcpu_stats __percpu *pcpu_stats;
Eric Dumazetcd431e72013-02-05 20:22:50 +0000[diff] [blame]45
46 DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
47
Vlad Yasevich2be5c762013-06-25 16:04:21 -0400[diff] [blame]48 netdev_features_t set_features;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]49 enum macvlan_mode mode;
John Fastabenddf8ef8f2012-04-15 06:44:37 +0000[diff] [blame]50 u16 flags;
Jason Wang815f2362013-06-05 23:54:39 +0000[diff] [blame]51 /* This array tracks active taps. */
Jason Wangd9a90a32013-06-13 14:23:35 +0800[diff] [blame]52 struct macvtap_queue __rcu *taps[MAX_MACVTAP_QUEUES];
Jason Wang815f2362013-06-05 23:54:39 +0000[diff] [blame]53 /* This list tracks all taps (both enabled and disabled) */
54 struct list_head queue_list;
Krishna Kumar1565c7c2010-08-04 06:15:59 +0000[diff] [blame]55 int numvtaps;
Jason Wang815f2362013-06-05 23:54:39 +0000[diff] [blame]56 int numqueues;
Vlad Yasevich2be5c762013-06-25 16:04:21 -0400[diff] [blame]57 netdev_features_t tap_features;
Eric W. Biedermane09eff72011-10-20 04:29:24 +0000[diff] [blame]58 int minor;
Vlad Yasevichc674ac32014-05-16 17:04:56 -0400[diff] [blame]59 int nest_level;
dingtianhong688cea82014-05-30 16:00:56 +0800[diff] [blame]60#ifdef CONFIG_NET_POLL_CONTROLLER
61 struct netpoll *netpoll;
62#endif
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]63};
64
65static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
66 unsigned int len, bool success,
67 bool multicast)
68{
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]69 if (likely(success)) {
Li RongQingcdf3e272014-01-04 14:22:34 +0800[diff] [blame]70 struct vlan_pcpu_stats *pcpu_stats;
Eric Dumazet8ffab512010-11-10 21:14:04 +0000[diff] [blame]71
72 pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
73 u64_stats_update_begin(&pcpu_stats->syncp);
74 pcpu_stats->rx_packets++;
75 pcpu_stats->rx_bytes += len;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]76 if (multicast)
Eric Dumazet8ffab512010-11-10 21:14:04 +0000[diff] [blame]77 pcpu_stats->rx_multicast++;
78 u64_stats_update_end(&pcpu_stats->syncp);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]79 } else {
Eric Dumazet8ffab512010-11-10 21:14:04 +0000[diff] [blame]80 this_cpu_inc(vlan->pcpu_stats->rx_errors);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]81 }
82}
83
Herbert Xu8a357472010-07-21 21:44:31 +0000[diff] [blame]84extern void macvlan_common_setup(struct net_device *dev);
85
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]86extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
Vlad Yasevich2f6a1b62013-12-11 13:27:11 -0500[diff] [blame]87 struct nlattr *tb[], struct nlattr *data[]);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +0000[diff] [blame]88
89extern void macvlan_count_rx(const struct macvlan_dev *vlan,
90 unsigned int len, bool success,
91 bool multicast);
92
93extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
94
95extern int macvlan_link_register(struct rtnl_link_ops *ops);
96
Michal Kubečekbe9eac42013-11-15 06:18:40 +0100[diff] [blame]97#if IS_ENABLED(CONFIG_MACVLAN)
98static inline struct net_device *
99macvlan_dev_real_dev(const struct net_device *dev)
100{
101 struct macvlan_dev *macvlan = netdev_priv(dev);
102
103 return macvlan->lowerdev;
104}
105#else
106static inline struct net_device *
107macvlan_dev_real_dev(const struct net_device *dev)
108{
109 BUG();
110 return NULL;
111}
112#endif
113
Patrick McHardyb863ceb2007-07-14 18:55:06 -0700[diff] [blame]114#endif /* _LINUX_IF_MACVLAN_H */