1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_IF_MACVLAN_H
3#define _LINUX_IF_MACVLAN_H
4
5#include <linux/if_link.h>
6#include <linux/if_vlan.h>
7#include <linux/list.h>
8#include <linux/netdevice.h>
9#include <linux/netlink.h>
10#include <net/netlink.h>
11#include <linux/u64_stats_sync.h>
12
13struct macvlan_port;
14
15#define MACVLAN_MC_FILTER_BITS 8
16#define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
17
18struct 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;
24 netdevice_tracker dev_tracker;
25 void *accel_priv;
26 struct vlan_pcpu_stats __percpu *pcpu_stats;
27
28 DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
29
30 netdev_features_t set_features;
31 enum macvlan_mode mode;
32 u16 flags;
33 unsigned int macaddr_count;
34 u32 bc_queue_len_req;
35#ifdef CONFIG_NET_POLL_CONTROLLER
36 struct netpoll *netpoll;
37#endif
38};
39
40static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
41 unsigned int len, bool success,
42 bool multicast)
43{
44 if (likely(success)) {
45 struct vlan_pcpu_stats *pcpu_stats;
46
47 pcpu_stats = get_cpu_ptr(vlan->pcpu_stats);
48 u64_stats_update_begin(&pcpu_stats->syncp);
49 u64_stats_inc(&pcpu_stats->rx_packets);
50 u64_stats_add(&pcpu_stats->rx_bytes, len);
51 if (multicast)
52 u64_stats_inc(&pcpu_stats->rx_multicast);
53 u64_stats_update_end(&pcpu_stats->syncp);
54 put_cpu_ptr(vlan->pcpu_stats);
55 } else {
56 this_cpu_inc(vlan->pcpu_stats->rx_errors);
57 }
58}
59
60extern void macvlan_common_setup(struct net_device *dev);
61
62extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
63 struct nlattr *tb[], struct nlattr *data[],
64 struct netlink_ext_ack *extack);
65
66extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
67
68extern int macvlan_link_register(struct rtnl_link_ops *ops);
69
70#if IS_ENABLED(CONFIG_MACVLAN)
71static inline struct net_device *
72macvlan_dev_real_dev(const struct net_device *dev)
73{
74 struct macvlan_dev *macvlan = netdev_priv(dev);
75
76 return macvlan->lowerdev;
77}
78#else
79static inline struct net_device *
80macvlan_dev_real_dev(const struct net_device *dev)
81{
82 BUG();
83 return NULL;
84}
85#endif
86
87static inline void *macvlan_accel_priv(struct net_device *dev)
88{
89 struct macvlan_dev *macvlan = netdev_priv(dev);
90
91 return macvlan->accel_priv;
92}
93
94static inline bool macvlan_supports_dest_filter(struct net_device *dev)
95{
96 struct macvlan_dev *macvlan = netdev_priv(dev);
97
98 return macvlan->mode == MACVLAN_MODE_PRIVATE ||
99 macvlan->mode == MACVLAN_MODE_VEPA ||
100 macvlan->mode == MACVLAN_MODE_BRIDGE;
101}
102
103static inline int macvlan_release_l2fw_offload(struct net_device *dev)
104{
105 struct macvlan_dev *macvlan = netdev_priv(dev);
106
107 macvlan->accel_priv = NULL;
108 return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
109}
110#endif /* _LINUX_IF_MACVLAN_H */
111

source code of linux/include/linux/if_macvlan.h