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  *   €l–Ь4э( ©і( 	ЕЂfаB¦-яБѓx"k_†I|ҐЏ+ДЕ ј    /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * include/linux/if_team.h - Network team device driver header
 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
 */
#ifndef _LINUX_IF_TEAM_H_
#define _LINUX_IF_TEAM_H_

#include <linux/netpoll.h>
#include <net/sch_generic.h>
#include <linux/types.h>
#include <uapi/linux/if_team.h>

struct team_pcpu_stats {
	u64_stats_t		rx_packets;
	u64_stats_t		rx_bytes;
	u64_stats_t		rx_multicast;
	u64_stats_t		tx_packets;
	u64_stats_t		tx_bytes;
	struct u64_stats_sync	syncp;
	u32			rx_dropped;
	u32			tx_dropped;
	u32			rx_nohandler;
};

struct team;

struct team_port {
	struct net_device *dev;
	struct hlist_node hlist; /* node in enabled ports hash list */
	struct list_head list; /* node in ordinary list */
	struct team *team;
	int index; /* index of enabled port. If disabled, it's set to -1 */

	bool linkup; /* either state.linkup or user.linkup */

	struct {
		bool linkup;
		u32 speed;
		u8 duplex;
	} state;

	/* Values set by userspace */
	struct {
		bool linkup;
		bool linkup_enabled;
	} user;

	/* Custom gennetlink interface related flags */
	bool changed;
	bool removed;

	/*
	 * A place for storing original values of the device before it
	 * become a port.
	 */
	struct {
		unsigned char dev_addr[MAX_ADDR_LEN];
		unsigned int mtu;
	} orig;

#ifdef CONFIG_NET_POLL_CONTROLLER
	struct netpoll *np;
#endif

	s32 priority; /* lower number ~ higher priority */
	u16 queue_id;
	struct list_head qom_list; /* node in queue override mapping list */
	struct rcu_head	rcu;
	long mode_priv[];
};

static inline struct team_port *team_port_get_rcu(const struct net_device *dev)
{
	return rcu_dereference(dev->rx_handler_data);
}

static inline bool team_port_enabled(struct team_port *port)
{
	return port->index != -1;
}

static inline bool team_port_txable(struct team_port *port)
{
	return port->linkup && team_port_enabled(port);
}

static inline bool team_port_dev_txable(const struct net_device *port_dev)
{
	struct team_port *port;
	bool txable;

	rcu_read_lock();
	port = team_port_get_rcu(port_dev);
	txable = port ? team_port_txable(port) : false;
	rcu_read_unlock();

	return txable;
}

#ifdef CONFIG_NET_POLL_CONTROLLER
static inline void team_netpoll_send_skb(struct team_port *port,
					 struct sk_buff *skb)
{
	netpoll_send_skb(port->np, skb);
}
#else
static inline void team_netpoll_send_skb(struct team_port *port,
					 struct sk_buff *skb)
{
}
#endif

struct team_mode_ops {
	int (*init)(struct team *team);
	void (*exit)(struct team *team);
	rx_handler_result_t (*receive)(struct team *team,
				       struct team_port *port,
				       struct sk_buff *skb);
	bool (*transmit)(struct team *team, struct sk_buff *skb);
	int (*port_enter)(struct team *team, struct team_port *port);
	void (*port_leave)(struct team *team, struct team_port *port);
	void (*port_change_dev_addr)(struct team *team, struct team_port *port);
	void (*port_enabled)(struct team *team, struct team_port *port);
	void (*port_disabled)(struct team *team, struct team_port *port);
};

extern int team_modeop_port_enter(struct team *team, struct team_port *port);
extern void team_modeop_port_change_dev_addr(struct team *team,
					     struct team_port *port);

enum team_option_type {
	TEAM_OPTION_TYPE_U32,
	TEAM_OPTION_TYPE_STRING,
	TEAM_OPTION_TYPE_BINARY,
	TEAM_OPTION_TYPE_BOOL,
	TEAM_OPTION_TYPE_S32,
};

struct team_option_inst_info {
	u32 array_index;
	struct team_port *port; /* != NULL if per-port */
};

struct team_gsetter_ctx {
	union {
		u32 u32_val;
		const char *str_val;
		struct {
			const void *ptr;
			u32 len;
		} bin_val;
		bool bool_val;
		s32 s32_val;
	} data;
	struct team_option_inst_info *info;
};

struct team_option {
	struct list_head list;
	const char *name;
	bool per_port;
	unsigned int array_size; /* != 0 means the option is array */
	enum team_option_type type;
	int (*init)(struct team *team, struct team_option_inst_info *info);
	int (*getter)(struct team *team, struct team_gsetter_ctx *ctx);
	int (*setter)(struct team *team, struct team_gsett