| #ifndef _LINUX_IF_MACVLAN_H |
| #define _LINUX_IF_MACVLAN_H |
| |
| #include <linux/if_link.h> |
| #include <linux/if_vlan.h> |
| #include <linux/list.h> |
| #include <linux/netdevice.h> |
| #include <linux/netlink.h> |
| #include <net/netlink.h> |
| #include <linux/u64_stats_sync.h> |
| |
| #if IS_ENABLED(CONFIG_MACVTAP) |
| struct socket *macvtap_get_socket(struct file *); |
| #else |
| #include <linux/err.h> |
| #include <linux/errno.h> |
| struct file; |
| struct socket; |
| static inline struct socket *macvtap_get_socket(struct file *f) |
| { |
| return ERR_PTR(-EINVAL); |
| } |
| #endif /* CONFIG_MACVTAP */ |
| |
| struct macvlan_port; |
| struct macvtap_queue; |
| |
| /* |
| * Maximum times a macvtap device can be opened. This can be used to |
| * configure the number of receive queue, e.g. for multiqueue virtio. |
| */ |
| #define MAX_MACVTAP_QUEUES 256 |
| |
| #define MACVLAN_MC_FILTER_BITS 8 |
| #define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS) |
| |
| struct macvlan_dev { |
| struct net_device *dev; |
| struct list_head list; |
| struct hlist_node hlist; |
| struct macvlan_port *port; |
| struct net_device *lowerdev; |
| void *fwd_priv; |
| struct vlan_pcpu_stats __percpu *pcpu_stats; |
| |
| DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ); |
| |
| netdev_features_t set_features; |
| enum macvlan_mode mode; |
| u16 flags; |
| /* This array tracks active taps. */ |
| struct macvtap_queue __rcu *taps[MAX_MACVTAP_QUEUES]; |
| /* This list tracks all taps (both enabled and disabled) */ |
| struct list_head queue_list; |
| int numvtaps; |
| int numqueues; |
| netdev_features_t tap_features; |
| int minor; |
| int nest_level; |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| struct netpoll *netpoll; |
| #endif |
| unsigned int macaddr_count; |
| }; |
| |
| static inline void macvlan_count_rx(const struct macvlan_dev *vlan, |
| unsigned int len, bool success, |
| bool multicast) |
| { |
| if (likely(success)) { |
| struct vlan_pcpu_stats *pcpu_stats; |
| |
| pcpu_stats = this_cpu_ptr(vlan->pcpu_stats); |
| u64_stats_update_begin(&pcpu_stats->syncp); |
| pcpu_stats->rx_packets++; |
| pcpu_stats->rx_bytes += len; |
| if (multicast) |
| pcpu_stats->rx_multicast++; |
| u64_stats_update_end(&pcpu_stats->syncp); |
| } else { |
| this_cpu_inc(vlan->pcpu_stats->rx_errors); |
| } |
| } |
| |
| extern void macvlan_common_setup(struct net_device *dev); |
| |
| extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev, |
| struct nlattr *tb[], struct nlattr *data[]); |
| |
| extern void macvlan_count_rx(const struct macvlan_dev *vlan, |
| unsigned int len, bool success, |
| bool multicast); |
| |
| extern void macvlan_dellink(struct net_device *dev, struct list_head *head); |
| |
| extern int macvlan_link_register(struct rtnl_link_ops *ops); |
| |
| #if IS_ENABLED(CONFIG_MACVLAN) |
| static inline struct net_device * |
| macvlan_dev_real_dev(const struct net_device *dev) |
| { |
| struct macvlan_dev *macvlan = netdev_priv(dev); |
| |
| return macvlan->lowerdev; |
| } |
| #else |
| static inline struct net_device * |
| macvlan_dev_real_dev(const struct net_device *dev) |
| { |
| BUG(); |
| return NULL; |
| } |
| #endif |
| |
| #endif /* _LINUX_IF_MACVLAN_H */ |