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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 | /** | |
28 | * struct macvlan_rx_stats - MACVLAN percpu rx stats | |
29 | * @rx_packets: number of received packets | |
30 | * @rx_bytes: number of received bytes | |
bc66154e ED |
31 | * @rx_multicast: number of received multicast packets |
32 | * @syncp: synchronization point for 64bit counters | |
fc0663d6 AB |
33 | * @rx_errors: number of errors |
34 | */ | |
35 | struct macvlan_rx_stats { | |
bc66154e ED |
36 | u64 rx_packets; |
37 | u64 rx_bytes; | |
38 | u64 rx_multicast; | |
39 | struct u64_stats_sync syncp; | |
40 | unsigned long rx_errors; | |
fc0663d6 AB |
41 | }; |
42 | ||
1565c7c1 KK |
43 | /* |
44 | * Maximum times a macvtap device can be opened. This can be used to | |
45 | * configure the number of receive queue, e.g. for multiqueue virtio. | |
46 | */ | |
47 | #define MAX_MACVTAP_QUEUES (NR_CPUS < 16 ? NR_CPUS : 16) | |
48 | ||
fc0663d6 AB |
49 | struct macvlan_dev { |
50 | struct net_device *dev; | |
51 | struct list_head list; | |
52 | struct hlist_node hlist; | |
53 | struct macvlan_port *port; | |
54 | struct net_device *lowerdev; | |
47d74275 | 55 | struct macvlan_rx_stats __percpu *rx_stats; |
fc0663d6 AB |
56 | enum macvlan_mode mode; |
57 | int (*receive)(struct sk_buff *skb); | |
58 | int (*forward)(struct net_device *dev, struct sk_buff *skb); | |
1565c7c1 KK |
59 | struct macvtap_queue *taps[MAX_MACVTAP_QUEUES]; |
60 | int numvtaps; | |
fc0663d6 AB |
61 | }; |
62 | ||
63 | static inline void macvlan_count_rx(const struct macvlan_dev *vlan, | |
64 | unsigned int len, bool success, | |
65 | bool multicast) | |
66 | { | |
67 | struct macvlan_rx_stats *rx_stats; | |
68 | ||
bc66154e | 69 | rx_stats = this_cpu_ptr(vlan->rx_stats); |
fc0663d6 | 70 | if (likely(success)) { |
bc66154e | 71 | u64_stats_update_begin(&rx_stats->syncp); |
fc0663d6 AB |
72 | rx_stats->rx_packets++;; |
73 | rx_stats->rx_bytes += len; | |
74 | if (multicast) | |
bc66154e ED |
75 | rx_stats->rx_multicast++; |
76 | u64_stats_update_end(&rx_stats->syncp); | |
fc0663d6 AB |
77 | } else { |
78 | rx_stats->rx_errors++; | |
79 | } | |
80 | } | |
81 | ||
8a35747a HX |
82 | extern void macvlan_common_setup(struct net_device *dev); |
83 | ||
fc0663d6 AB |
84 | extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev, |
85 | struct nlattr *tb[], struct nlattr *data[], | |
86 | int (*receive)(struct sk_buff *skb), | |
87 | int (*forward)(struct net_device *dev, | |
88 | struct sk_buff *skb)); | |
89 | ||
90 | extern void macvlan_count_rx(const struct macvlan_dev *vlan, | |
91 | unsigned int len, bool success, | |
92 | bool multicast); | |
93 | ||
94 | extern void macvlan_dellink(struct net_device *dev, struct list_head *head); | |
95 | ||
96 | extern int macvlan_link_register(struct rtnl_link_ops *ops); | |
97 | ||
98 | extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, | |
99 | struct net_device *dev); | |
100 | ||
b863ceb7 | 101 | #endif /* _LINUX_IF_MACVLAN_H */ |