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
13 struct macvlan_port;
14
15 #define MACVLAN_MC_FILTER_BITS 8
16 #define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
17
18 struct 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
macvlan_count_rx(const struct macvlan_dev * vlan,unsigned int len,bool success,bool multicast)40 static 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
60 extern void macvlan_common_setup(struct net_device *dev);
61
62 struct rtnl_newlink_params;
63
64 extern int macvlan_common_newlink(struct net_device *dev,
65 struct rtnl_newlink_params *params,
66 struct netlink_ext_ack *extack);
67
68 extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
69
70 extern int macvlan_link_register(struct rtnl_link_ops *ops);
71
72 #if IS_ENABLED(CONFIG_MACVLAN)
73 static inline struct net_device *
macvlan_dev_real_dev(const struct net_device * dev)74 macvlan_dev_real_dev(const struct net_device *dev)
75 {
76 struct macvlan_dev *macvlan = netdev_priv(dev);
77
78 return macvlan->lowerdev;
79 }
80 #else
81 static inline struct net_device *
macvlan_dev_real_dev(const struct net_device * dev)82 macvlan_dev_real_dev(const struct net_device *dev)
83 {
84 BUG();
85 return NULL;
86 }
87 #endif
88
macvlan_accel_priv(struct net_device * dev)89 static inline void *macvlan_accel_priv(struct net_device *dev)
90 {
91 struct macvlan_dev *macvlan = netdev_priv(dev);
92
93 return macvlan->accel_priv;
94 }
95
macvlan_supports_dest_filter(struct net_device * dev)96 static inline bool macvlan_supports_dest_filter(struct net_device *dev)
97 {
98 struct macvlan_dev *macvlan = netdev_priv(dev);
99
100 return macvlan->mode == MACVLAN_MODE_PRIVATE ||
101 macvlan->mode == MACVLAN_MODE_VEPA ||
102 macvlan->mode == MACVLAN_MODE_BRIDGE;
103 }
104
macvlan_release_l2fw_offload(struct net_device * dev)105 static inline int macvlan_release_l2fw_offload(struct net_device *dev)
106 {
107 struct macvlan_dev *macvlan = netdev_priv(dev);
108
109 macvlan->accel_priv = NULL;
110 return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
111 }
112 #endif /* _LINUX_IF_MACVLAN_H */
113