1 #ifndef _LINUX_IF_MACVLAN_H
2 #define _LINUX_IF_MACVLAN_H
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>
9 #include <linux/u64_stats_sync.h>
11 #if IS_ENABLED(CONFIG_MACVTAP)
12 struct socket *macvtap_get_socket(struct file *);
14 #include <linux/err.h>
15 #include <linux/errno.h>
18 static inline struct socket *macvtap_get_socket(struct file *f)
20 return ERR_PTR(-EINVAL);
22 #endif /* CONFIG_MACVTAP */
28 * struct macvlan_pcpu_stats - MACVLAN percpu stats
29 * @rx_packets: number of received packets
30 * @rx_bytes: number of received bytes
31 * @rx_multicast: number of received multicast packets
32 * @tx_packets: number of transmitted packets
33 * @tx_bytes: number of transmitted bytes
34 * @syncp: synchronization point for 64bit counters
35 * @rx_errors: number of rx errors
36 * @tx_dropped: number of tx dropped packets
38 struct macvlan_pcpu_stats {
44 struct u64_stats_sync syncp;
50 * Maximum times a macvtap device can be opened. This can be used to
51 * configure the number of receive queue, e.g. for multiqueue virtio.
53 #define MAX_MACVTAP_QUEUES 16
55 #define MACVLAN_MC_FILTER_BITS 8
56 #define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
59 struct net_device *dev;
60 struct list_head list;
61 struct hlist_node hlist;
62 struct macvlan_port *port;
63 struct net_device *lowerdev;
65 struct macvlan_pcpu_stats __percpu *pcpu_stats;
67 DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
69 netdev_features_t set_features;
70 enum macvlan_mode mode;
72 /* This array tracks active taps. */
73 struct macvtap_queue __rcu *taps[MAX_MACVTAP_QUEUES];
74 /* This list tracks all taps (both enabled and disabled) */
75 struct list_head queue_list;
78 netdev_features_t tap_features;
82 static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
83 unsigned int len, bool success,
86 if (likely(success)) {
87 struct macvlan_pcpu_stats *pcpu_stats;
89 pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
90 u64_stats_update_begin(&pcpu_stats->syncp);
91 pcpu_stats->rx_packets++;
92 pcpu_stats->rx_bytes += len;
94 pcpu_stats->rx_multicast++;
95 u64_stats_update_end(&pcpu_stats->syncp);
97 this_cpu_inc(vlan->pcpu_stats->rx_errors);
101 extern void macvlan_common_setup(struct net_device *dev);
103 extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
104 struct nlattr *tb[], struct nlattr *data[]);
106 extern void macvlan_count_rx(const struct macvlan_dev *vlan,
107 unsigned int len, bool success,
110 extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
112 extern int macvlan_link_register(struct rtnl_link_ops *ops);
114 #if IS_ENABLED(CONFIG_MACVLAN)
115 static inline struct net_device *
116 macvlan_dev_real_dev(const struct net_device *dev)
118 struct macvlan_dev *macvlan = netdev_priv(dev);
120 return macvlan->lowerdev;
123 static inline struct net_device *
124 macvlan_dev_real_dev(const struct net_device *dev)
131 #endif /* _LINUX_IF_MACVLAN_H */