[mirror_ubuntu-jammy-kernel.git] / include / linux / if_macvlan.h

/* 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;
	unsigned int		macaddr_count;
	u32			bc_queue_len_req;
#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 = get_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);
		put_cpu_ptr(vlan->pcpu_stats);
	} 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 */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
b863ceb7 PM	2	#ifndef _LINUX_IF_MACVLAN_H
	3	#define _LINUX_IF_MACVLAN_H
	4
fc0663d6	5	#include <linux/if_link.h>
cdf3e274	6	#include <linux/if_vlan.h>
fc0663d6 AB	7	#include <linux/list.h>
	8	#include <linux/netdevice.h>
	9	#include <linux/netlink.h>
	10	#include <net/netlink.h>
bc66154e	11	#include <linux/u64_stats_sync.h>
fc0663d6 AB	12
fc0663d6 AB	13	struct macvlan_port;
1565c7c1	14
cd431e73 ED	15	#define MACVLAN_MC_FILTER_BITS 8
	16	#define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
	17
fc0663d6 AB	18	struct macvlan_dev {
	19	struct net_device *dev;
	20	struct list_head list;
	21	struct hlist_node hlist;
	22	struct macvlan_port *port;
	23	struct net_device *lowerdev;
7d775f63	24	void *accel_priv;
cdf3e274	25	struct vlan_pcpu_stats __percpu *pcpu_stats;
cd431e73 ED	26
	27	DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
	28
2be5c767	29	netdev_features_t set_features;
fc0663d6	30	enum macvlan_mode mode;
df8ef8f3	31	u16 flags;
5e54b3c1	32	unsigned int macaddr_count;
d4bff72c	33	u32 bc_queue_len_req;
688cea83	34	#ifdef CONFIG_NET_POLL_CONTROLLER
	35	struct netpoll *netpoll;
	36	#endif
fc0663d6 AB	37	};
	38
	39	static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
	40	unsigned int len, bool success,
	41	bool multicast)
	42	{
fc0663d6	43	if (likely(success)) {
cdf3e274	44	struct vlan_pcpu_stats *pcpu_stats;
8ffab51b	45
dd4fa1da	46	pcpu_stats = get_cpu_ptr(vlan->pcpu_stats);
8ffab51b ED	47	u64_stats_update_begin(&pcpu_stats->syncp);
	48	pcpu_stats->rx_packets++;
	49	pcpu_stats->rx_bytes += len;
fc0663d6	50	if (multicast)
8ffab51b ED	51	pcpu_stats->rx_multicast++;
8ffab51b ED	52	u64_stats_update_end(&pcpu_stats->syncp);
dd4fa1da	53	put_cpu_ptr(vlan->pcpu_stats);
fc0663d6	54	} else {
8ffab51b	55	this_cpu_inc(vlan->pcpu_stats->rx_errors);
fc0663d6 AB	56	}
	57	}
	58
8a35747a HX	59	extern void macvlan_common_setup(struct net_device *dev);
8a35747a HX	60
fc0663d6	61	extern int macvlan_common_newlink(struct net src_net, struct net_device dev,
42ab19ee DA	62	struct nlattr tb[], struct nlattr data[],
42ab19ee DA	63	struct netlink_ext_ack *extack);
fc0663d6	64
fc0663d6 AB	65	extern void macvlan_dellink(struct net_device dev, struct list_head head);
	66
	67	extern int macvlan_link_register(struct rtnl_link_ops *ops);
	68
be9eac48 MK	69	#if IS_ENABLED(CONFIG_MACVLAN)
	70	static inline struct net_device *
	71	macvlan_dev_real_dev(const struct net_device *dev)
	72	{
	73	struct macvlan_dev *macvlan = netdev_priv(dev);
	74
	75	return macvlan->lowerdev;
	76	}
	77	#else
	78	static inline struct net_device *
	79	macvlan_dev_real_dev(const struct net_device *dev)
	80	{
	81	BUG();
	82	return NULL;
	83	}
	84	#endif
	85
7d775f63 AD	86	static inline void macvlan_accel_priv(struct net_device dev)
	87	{
	88	struct macvlan_dev *macvlan = netdev_priv(dev);
	89
	90	return macvlan->accel_priv;
	91	}
6cb1937d AD	92
	93	static inline bool macvlan_supports_dest_filter(struct net_device *dev)
	94	{
	95	struct macvlan_dev *macvlan = netdev_priv(dev);
	96
	97	return macvlan->mode == MACVLAN_MODE_PRIVATE \|\|
	98	macvlan->mode == MACVLAN_MODE_VEPA \|\|
	99	macvlan->mode == MACVLAN_MODE_BRIDGE;
	100	}
53cd4d8e AD	101
	102	static inline int macvlan_release_l2fw_offload(struct net_device *dev)
	103	{
	104	struct macvlan_dev *macvlan = netdev_priv(dev);
	105
	106	macvlan->accel_priv = NULL;
	107	return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
	108	}
b863ceb7	109	#endif /* _LINUX_IF_MACVLAN_H */