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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 | |
1d2f41ed | 11 | #if IS_ENABLED(CONFIG_MACVTAP) |
501c774c AB |
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 | */ | |
f0afce01 | 53 | #define MAX_MACVTAP_QUEUES 16 |
1565c7c1 | 54 | |
cd431e73 ED |
55 | #define MACVLAN_MC_FILTER_BITS 8 |
56 | #define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS) | |
57 | ||
fc0663d6 AB |
58 | struct macvlan_dev { |
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; | |
8ffab51b | 64 | struct macvlan_pcpu_stats __percpu *pcpu_stats; |
cd431e73 ED |
65 | |
66 | DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ); | |
67 | ||
fc0663d6 | 68 | enum macvlan_mode mode; |
df8ef8f3 | 69 | u16 flags; |
fc0663d6 AB |
70 | int (*receive)(struct sk_buff *skb); |
71 | int (*forward)(struct net_device *dev, struct sk_buff *skb); | |
1565c7c1 KK |
72 | struct macvtap_queue *taps[MAX_MACVTAP_QUEUES]; |
73 | int numvtaps; | |
e09eff7f | 74 | int minor; |
fc0663d6 AB |
75 | }; |
76 | ||
77 | static inline void macvlan_count_rx(const struct macvlan_dev *vlan, | |
78 | unsigned int len, bool success, | |
79 | bool multicast) | |
80 | { | |
fc0663d6 | 81 | if (likely(success)) { |
8ffab51b ED |
82 | struct macvlan_pcpu_stats *pcpu_stats; |
83 | ||
84 | pcpu_stats = this_cpu_ptr(vlan->pcpu_stats); | |
85 | u64_stats_update_begin(&pcpu_stats->syncp); | |
86 | pcpu_stats->rx_packets++; | |
87 | pcpu_stats->rx_bytes += len; | |
fc0663d6 | 88 | if (multicast) |
8ffab51b ED |
89 | pcpu_stats->rx_multicast++; |
90 | u64_stats_update_end(&pcpu_stats->syncp); | |
fc0663d6 | 91 | } else { |
8ffab51b | 92 | this_cpu_inc(vlan->pcpu_stats->rx_errors); |
fc0663d6 AB |
93 | } |
94 | } | |
95 | ||
8a35747a HX |
96 | extern void macvlan_common_setup(struct net_device *dev); |
97 | ||
fc0663d6 AB |
98 | extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev, |
99 | struct nlattr *tb[], struct nlattr *data[], | |
100 | int (*receive)(struct sk_buff *skb), | |
101 | int (*forward)(struct net_device *dev, | |
102 | struct sk_buff *skb)); | |
103 | ||
104 | extern void macvlan_count_rx(const struct macvlan_dev *vlan, | |
105 | unsigned int len, bool success, | |
106 | bool multicast); | |
107 | ||
108 | extern void macvlan_dellink(struct net_device *dev, struct list_head *head); | |
109 | ||
110 | extern int macvlan_link_register(struct rtnl_link_ops *ops); | |
111 | ||
112 | extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, | |
113 | struct net_device *dev); | |
114 | ||
b863ceb7 | 115 | #endif /* _LINUX_IF_MACVLAN_H */ |