2007-07-14 19:55:06 -06:00
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#ifndef _LINUX_IF_MACVLAN_H
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#define _LINUX_IF_MACVLAN_H
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2010-01-30 05:23:40 -07:00
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#include <linux/if_link.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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2010-06-23 18:54:21 -06:00
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#include <linux/u64_stats_sync.h>
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2010-01-30 05:23:40 -07:00
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2013-06-05 17:54:35 -06:00
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#if IS_ENABLED(CONFIG_MACVTAP)
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2010-02-17 22:46:50 -07:00
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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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2010-01-30 05:23:40 -07:00
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struct macvlan_port;
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struct macvtap_queue;
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/**
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2010-11-10 14:14:04 -07:00
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* struct macvlan_pcpu_stats - MACVLAN percpu stats
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2010-01-30 05:23:40 -07:00
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* @rx_packets: number of received packets
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* @rx_bytes: number of received bytes
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2010-06-23 18:54:21 -06:00
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* @rx_multicast: number of received multicast packets
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2010-11-10 14:14:04 -07:00
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* @tx_packets: number of transmitted packets
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* @tx_bytes: number of transmitted bytes
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2010-06-23 18:54:21 -06:00
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* @syncp: synchronization point for 64bit counters
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2010-11-10 14:14:04 -07:00
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* @rx_errors: number of rx errors
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* @tx_dropped: number of tx dropped packets
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2010-01-30 05:23:40 -07:00
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*/
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2010-11-10 14:14:04 -07:00
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struct macvlan_pcpu_stats {
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u64 rx_packets;
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u64 rx_bytes;
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u64 rx_multicast;
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2010-11-10 14:14:04 -07:00
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u64 tx_packets;
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u64 tx_bytes;
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2010-06-23 18:54:21 -06:00
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struct u64_stats_sync syncp;
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2010-11-10 14:14:04 -07:00
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u32 rx_errors;
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u32 tx_dropped;
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2010-01-30 05:23:40 -07:00
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};
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2010-08-04 00:15:59 -06:00
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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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2013-06-05 17:54:37 -06:00
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#define MAX_MACVTAP_QUEUES 16
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2010-08-04 00:15:59 -06:00
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2013-02-05 13:22:50 -07:00
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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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2010-01-30 05:23:40 -07:00
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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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2010-11-10 14:14:04 -07:00
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struct macvlan_pcpu_stats __percpu *pcpu_stats;
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2013-02-05 13:22:50 -07:00
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DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
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2010-01-30 05:23:40 -07:00
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enum macvlan_mode mode;
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2012-04-15 00:44:37 -06:00
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u16 flags;
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2010-01-30 05:23:40 -07:00
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int (*receive)(struct sk_buff *skb);
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int (*forward)(struct net_device *dev, struct sk_buff *skb);
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2010-08-04 00:15:59 -06:00
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struct macvtap_queue *taps[MAX_MACVTAP_QUEUES];
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int numvtaps;
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2011-10-19 22:29:24 -06:00
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int minor;
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2010-01-30 05:23:40 -07:00
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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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2010-11-10 14:14:04 -07:00
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struct macvlan_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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2010-01-30 05:23:40 -07:00
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} else {
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this_cpu_inc(vlan->pcpu_stats->rx_errors);
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2010-01-30 05:23:40 -07:00
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}
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}
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2010-07-21 15:44:31 -06:00
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extern void macvlan_common_setup(struct net_device *dev);
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2010-01-30 05:23:40 -07:00
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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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int (*receive)(struct sk_buff *skb),
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int (*forward)(struct net_device *dev,
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struct sk_buff *skb));
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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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extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
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struct net_device *dev);
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2007-07-14 19:55:06 -06:00
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#endif /* _LINUX_IF_MACVLAN_H */
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