1 #ifndef _LINUX_IF_MACVLAN_H 2 #define _LINUX_IF_MACVLAN_H 3 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 10 #if defined(CONFIG_MACVTAP) || defined(CONFIG_MACVTAP_MODULE) 11 struct socket *macvtap_get_socket(struct file *); 12 #else 13 #include <linux/err.h> 14 #include <linux/errno.h> 15 struct file; 16 struct socket; 17 static inline struct socket *macvtap_get_socket(struct file *f) 18 { 19 return ERR_PTR(-EINVAL); 20 } 21 #endif /* CONFIG_MACVTAP */ 22 23 struct macvlan_port; 24 struct macvtap_queue; 25 26 /** 27 * struct macvlan_rx_stats - MACVLAN percpu rx stats 28 * @rx_packets: number of received packets 29 * @rx_bytes: number of received bytes 30 * @multicast: number of received multicast packets 31 * @rx_errors: number of errors 32 */ 33 struct macvlan_rx_stats { 34 unsigned long rx_packets; 35 unsigned long rx_bytes; 36 unsigned long multicast; 37 unsigned long rx_errors; 38 }; 39 40 struct macvlan_dev { 41 struct net_device *dev; 42 struct list_head list; 43 struct hlist_node hlist; 44 struct macvlan_port *port; 45 struct net_device *lowerdev; 46 struct macvlan_rx_stats __percpu *rx_stats; 47 enum macvlan_mode mode; 48 int (*receive)(struct sk_buff *skb); 49 int (*forward)(struct net_device *dev, struct sk_buff *skb); 50 struct macvtap_queue *tap; 51 }; 52 53 static inline void macvlan_count_rx(const struct macvlan_dev *vlan, 54 unsigned int len, bool success, 55 bool multicast) 56 { 57 struct macvlan_rx_stats *rx_stats; 58 59 rx_stats = per_cpu_ptr(vlan->rx_stats, smp_processor_id()); 60 if (likely(success)) { 61 rx_stats->rx_packets++;; 62 rx_stats->rx_bytes += len; 63 if (multicast) 64 rx_stats->multicast++; 65 } else { 66 rx_stats->rx_errors++; 67 } 68 } 69 70 extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev, 71 struct nlattr *tb[], struct nlattr *data[], 72 int (*receive)(struct sk_buff *skb), 73 int (*forward)(struct net_device *dev, 74 struct sk_buff *skb)); 75 76 extern void macvlan_count_rx(const struct macvlan_dev *vlan, 77 unsigned int len, bool success, 78 bool multicast); 79 80 extern void macvlan_dellink(struct net_device *dev, struct list_head *head); 81 82 extern int macvlan_link_register(struct rtnl_link_ops *ops); 83 84 extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, 85 struct net_device *dev); 86 87 88 extern struct sk_buff *(*macvlan_handle_frame_hook)(struct sk_buff *); 89 90 #endif /* _LINUX_IF_MACVLAN_H */ 91