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b863ceb7 PM |
1 | #ifndef _LINUX_IF_MACVLAN_H |
2 | #define _LINUX_IF_MACVLAN_H | |
3 | ||
fc0663d6 AB |
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> | |
bc66154e | 9 | #include <linux/u64_stats_sync.h> |
fc0663d6 | 10 | |
501c774c AB |
11 | #if defined(CONFIG_MACVTAP) || defined(CONFIG_MACVTAP_MODULE) |
12 | struct socket *macvtap_get_socket(struct file *); | |
13 | #else | |
14 | #include <linux/err.h> | |
15 | #include <linux/errno.h> | |
16 | struct file; | |
17 | struct socket; | |
18 | static inline struct socket *macvtap_get_socket(struct file *f) | |
19 | { | |
20 | return ERR_PTR(-EINVAL); | |
21 | } | |
22 | #endif /* CONFIG_MACVTAP */ | |
23 | ||
fc0663d6 AB |
24 | struct macvlan_port; |
25 | struct macvtap_queue; | |
26 | ||
27 | /** | |
8ffab51b | 28 | * struct macvlan_pcpu_stats - MACVLAN percpu stats |
fc0663d6 AB |
29 | * @rx_packets: number of received packets |
30 | * @rx_bytes: number of received bytes | |
bc66154e | 31 | * @rx_multicast: number of received multicast packets |
8ffab51b ED |
32 | * @tx_packets: number of transmitted packets |
33 | * @tx_bytes: number of transmitted bytes | |
bc66154e | 34 | * @syncp: synchronization point for 64bit counters |
8ffab51b ED |
35 | * @rx_errors: number of rx errors |
36 | * @tx_dropped: number of tx dropped packets | |
fc0663d6 | 37 | */ |
8ffab51b | 38 | struct macvlan_pcpu_stats { |
bc66154e ED |
39 | u64 rx_packets; |
40 | u64 rx_bytes; | |
41 | u64 rx_multicast; | |
8ffab51b ED |
42 | u64 tx_packets; |
43 | u64 tx_bytes; | |
bc66154e | 44 | struct u64_stats_sync syncp; |
8ffab51b ED |
45 | u32 rx_errors; |
46 | u32 tx_dropped; | |
fc0663d6 AB |
47 | }; |
48 | ||
1565c7c1 KK |
49 | /* |
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. | |
52 | */ | |
53 | #define MAX_MACVTAP_QUEUES (NR_CPUS < 16 ? NR_CPUS : 16) | |
54 | ||
fc0663d6 AB |
55 | struct macvlan_dev { |
56 | struct net_device *dev; | |
57 | struct list_head list; | |
58 | struct hlist_node hlist; | |
59 | struct macvlan_port *port; | |
60 | struct net_device *lowerdev; | |
8ffab51b | 61 | struct macvlan_pcpu_stats __percpu *pcpu_stats; |
fc0663d6 | 62 | enum macvlan_mode mode; |
df8ef8f3 | 63 | u16 flags; |
fc0663d6 AB |
64 | int (*receive)(struct sk_buff *skb); |
65 | int (*forward)(struct net_device *dev, struct sk_buff *skb); | |
1565c7c1 KK |
66 | struct macvtap_queue *taps[MAX_MACVTAP_QUEUES]; |
67 | int numvtaps; | |
e09eff7f | 68 | int minor; |
fc0663d6 AB |
69 | }; |
70 | ||
71 | static inline void macvlan_count_rx(const struct macvlan_dev *vlan, | |
72 | unsigned int len, bool success, | |
73 | bool multicast) | |
74 | { | |
fc0663d6 | 75 | if (likely(success)) { |
8ffab51b ED |
76 | struct macvlan_pcpu_stats *pcpu_stats; |
77 | ||
78 | pcpu_stats = this_cpu_ptr(vlan->pcpu_stats); | |
79 | u64_stats_update_begin(&pcpu_stats->syncp); | |
80 | pcpu_stats->rx_packets++; | |
81 | pcpu_stats->rx_bytes += len; | |
fc0663d6 | 82 | if (multicast) |
8ffab51b ED |
83 | pcpu_stats->rx_multicast++; |
84 | u64_stats_update_end(&pcpu_stats->syncp); | |
fc0663d6 | 85 | } else { |
8ffab51b | 86 | this_cpu_inc(vlan->pcpu_stats->rx_errors); |
fc0663d6 AB |
87 | } |
88 | } | |
89 | ||
8a35747a HX |
90 | extern void macvlan_common_setup(struct net_device *dev); |
91 | ||
fc0663d6 AB |
92 | extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev, |
93 | struct nlattr *tb[], struct nlattr *data[], | |
94 | int (*receive)(struct sk_buff *skb), | |
95 | int (*forward)(struct net_device *dev, | |
96 | struct sk_buff *skb)); | |
97 | ||
98 | extern void macvlan_count_rx(const struct macvlan_dev *vlan, | |
99 | unsigned int len, bool success, | |
100 | bool multicast); | |
101 | ||
102 | extern void macvlan_dellink(struct net_device *dev, struct list_head *head); | |
103 | ||
104 | extern int macvlan_link_register(struct rtnl_link_ops *ops); | |
105 | ||
106 | extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, | |
107 | struct net_device *dev); | |
108 | ||
b863ceb7 | 109 | #endif /* _LINUX_IF_MACVLAN_H */ |