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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Patrick McHardyb863ceb2007-07-14 18:55:06 -07002#ifndef _LINUX_IF_MACVLAN_H
3#define _LINUX_IF_MACVLAN_H
4
Arnd Bergmannfc0663d2010-01-30 12:23:40 +00005#include <linux/if_link.h>
Li RongQingcdf3e272014-01-04 14:22:34 +08006#include <linux/if_vlan.h>
Arnd Bergmannfc0663d2010-01-30 12:23:40 +00007#include <linux/list.h>
8#include <linux/netdevice.h>
9#include <linux/netlink.h>
10#include <net/netlink.h>
Eric Dumazetbc661542010-06-24 00:54:21 +000011#include <linux/u64_stats_sync.h>
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000012
13struct macvlan_port;
Krishna Kumar1565c7c2010-08-04 06:15:59 +000014
Eric Dumazetcd431e72013-02-05 20:22:50 +000015#define MACVLAN_MC_FILTER_BITS 8
16#define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
17
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000018struct macvlan_dev {
19 struct net_device *dev;
20 struct list_head list;
21 struct hlist_node hlist;
22 struct macvlan_port *port;
23 struct net_device *lowerdev;
Alexander Duyck7d775f62018-04-03 17:16:03 -040024 void *accel_priv;
Li RongQingcdf3e272014-01-04 14:22:34 +080025 struct vlan_pcpu_stats __percpu *pcpu_stats;
Eric Dumazetcd431e72013-02-05 20:22:50 +000026
27 DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
28
Vlad Yasevich2be5c762013-06-25 16:04:21 -040029 netdev_features_t set_features;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000030 enum macvlan_mode mode;
John Fastabenddf8ef8f2012-04-15 06:44:37 +000031 u16 flags;
Girish Moodalbail5e54b3c2017-12-08 06:03:26 -080032 unsigned int macaddr_count;
dingtianhong688cea82014-05-30 16:00:56 +080033#ifdef CONFIG_NET_POLL_CONTROLLER
34 struct netpoll *netpoll;
35#endif
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000036};
37
38static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
39 unsigned int len, bool success,
40 bool multicast)
41{
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000042 if (likely(success)) {
Li RongQingcdf3e272014-01-04 14:22:34 +080043 struct vlan_pcpu_stats *pcpu_stats;
Eric Dumazet8ffab512010-11-10 21:14:04 +000044
45 pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
46 u64_stats_update_begin(&pcpu_stats->syncp);
47 pcpu_stats->rx_packets++;
48 pcpu_stats->rx_bytes += len;
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000049 if (multicast)
Eric Dumazet8ffab512010-11-10 21:14:04 +000050 pcpu_stats->rx_multicast++;
51 u64_stats_update_end(&pcpu_stats->syncp);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000052 } else {
Eric Dumazet8ffab512010-11-10 21:14:04 +000053 this_cpu_inc(vlan->pcpu_stats->rx_errors);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000054 }
55}
56
Herbert Xu8a357472010-07-21 21:44:31 +000057extern void macvlan_common_setup(struct net_device *dev);
58
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000059extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
David Ahern42ab19e2017-10-04 17:48:47 -070060 struct nlattr *tb[], struct nlattr *data[],
61 struct netlink_ext_ack *extack);
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000062
Arnd Bergmannfc0663d2010-01-30 12:23:40 +000063extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
64
65extern int macvlan_link_register(struct rtnl_link_ops *ops);
66
Michal Kubečekbe9eac42013-11-15 06:18:40 +010067#if IS_ENABLED(CONFIG_MACVLAN)
68static inline struct net_device *
69macvlan_dev_real_dev(const struct net_device *dev)
70{
71 struct macvlan_dev *macvlan = netdev_priv(dev);
72
73 return macvlan->lowerdev;
74}
75#else
76static inline struct net_device *
77macvlan_dev_real_dev(const struct net_device *dev)
78{
79 BUG();
80 return NULL;
81}
82#endif
83
Alexander Duyck7d775f62018-04-03 17:16:03 -040084static inline void *macvlan_accel_priv(struct net_device *dev)
85{
86 struct macvlan_dev *macvlan = netdev_priv(dev);
87
88 return macvlan->accel_priv;
89}
Alexander Duyck6cb19372018-04-03 17:16:25 -040090
91static inline bool macvlan_supports_dest_filter(struct net_device *dev)
92{
93 struct macvlan_dev *macvlan = netdev_priv(dev);
94
95 return macvlan->mode == MACVLAN_MODE_PRIVATE ||
96 macvlan->mode == MACVLAN_MODE_VEPA ||
97 macvlan->mode == MACVLAN_MODE_BRIDGE;
98}
Alexander Duyck53cd4d82018-04-03 17:16:30 -040099
100static inline int macvlan_release_l2fw_offload(struct net_device *dev)
101{
102 struct macvlan_dev *macvlan = netdev_priv(dev);
103
104 macvlan->accel_priv = NULL;
105 return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
106}
Patrick McHardyb863ceb2007-07-14 18:55:06 -0700107#endif /* _LINUX_IF_MACVLAN_H */