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/* SPDX-License-Identifier: GPL-2.0 */
#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>
struct macvlan_port;
#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 *accel_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;
int nest_level;
unsigned int macaddr_count;
#ifdef CONFIG_NET_POLL_CONTROLLER
struct netpoll *netpoll;
#endif
};
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[],
struct netlink_ext_ack *extack);
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
static inline void *macvlan_accel_priv(struct net_device *dev)
{
struct macvlan_dev *macvlan = netdev_priv(dev);
return macvlan->accel_priv;
}
static inline bool macvlan_supports_dest_filter(struct net_device *dev)
{
struct macvlan_dev *macvlan = netdev_priv(dev);
return macvlan->mode == MACVLAN_MODE_PRIVATE ||
macvlan->mode == MACVLAN_MODE_VEPA ||
macvlan->mode == MACVLAN_MODE_BRIDGE;
}
static inline int macvlan_release_l2fw_offload(struct net_device *dev)
{
struct macvlan_dev *macvlan = netdev_priv(dev);
macvlan->accel_priv = NULL;
return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
}
#endif /* _LINUX_IF_MACVLAN_H */
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