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