/* SPDX-License-Identifier: GPL-2.0-or-later */#ifndef _NET_CORE_DEV_H#define _NET_CORE_DEV_H #include <linux/types.h> struct net;struct net_device;struct netdev_bpf;struct netdev_phys_item_id;struct netlink_ext_ack;struct cpumask; /* Random bits of netdevice that don't need to be exposed */#define FLOW_LIMIT_HISTORY	(1 << 7)  /* must be ^2 and !overflow buckets */struct sd_flow_limit {	u64			count;	unsigned int		num_buckets;	unsigned int		history_head;	u16			history[FLOW_LIMIT_HISTORY];	u8			buckets[];}; extern int netdev_flow_limit_table_len; #ifdef CONFIG_PROC_FSint __init dev_proc_init(void);#else#define dev_proc_init() 0#endif void linkwatch_init_dev(struct net_device *dev);void linkwatch_run_queue(void); void dev_addr_flush(struct net_device *dev);int dev_addr_init(struct net_device *dev);void dev_addr_check(struct net_device *dev); /* sysctls not referred to from outside net/core/ */extern int		netdev_budget;extern unsigned int	netdev_budget_usecs;extern unsigned int	sysctl_skb_defer_max;extern int		netdev_tstamp_prequeue;extern int		netdev_unregister_timeout_secs;extern int		weight_p;extern int		dev_weight_rx_bias;extern int		dev_weight_tx_bias; /* rtnl helpers */extern struct list_head net_todo_list;void netdev_run_todo(void); /* netdev management, shared between various uAPI entry points */struct netdev_name_node {	struct hlist_node hlist;	struct list_head list;	struct net_device *dev;	const char *name;}; int netdev_get_name(struct net *net, char *name, int ifindex);int dev_change_name(struct net_device *dev, const char *newname); #define netdev_for_each_altname(dev, namenode)				\	list_for_each_entry((namenode), &(dev)->name_node->list, list)#define netdev_for_each_altname_safe(dev, namenode, next)		\	list_for_each_entry_safe((namenode), (next), &(dev)->name_node->list, \				 list) int netdev_name_node_alt_create(struct net_device *dev, const char *name);int netdev_name_node_alt_destroy(struct net_device *dev, const char *name); int dev_validate_mtu(struct net_device *dev, int mtu,		     struct netlink_ext_ack *extack);int dev_set_mtu_ext(struct net_device *dev, int mtu,		    struct netlink_ext_ack *extack); int dev_get_phys_port_id(struct net_device *dev,			 struct netdev_phys_item_id *ppid);int dev_get_phys_port_name(struct net_device *dev,			   char *name, size_t len); int dev_change_proto_down(struct net_device *dev, bool proto_down);void dev_change_proto_down_reason(struct net_device *dev, unsigned long mask,				  u32 value); typedef int (*bpf_op_t)(struct net_device *dev, struct netdev_bpf *bpf);int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack,		      int fd, int expected_fd, u32 flags); int dev_change_tx_queue_len(struct net_device *dev, unsigned long new_len);void dev_set_group(struct net_device *dev, int new_group);int dev_change_carrier(struct net_device *dev, bool new_carrier); void __dev_set_rx_mode(struct net_device *dev); void __dev_notify_flags(struct net_device *dev, unsigned int old_flags,			unsigned int gchanges, u32 portid,			const struct nlmsghdr *nlh); void unregister_netdevice_many_notify(struct list_head *head,				      u32 portid, const struct nlmsghdr *nlh); static inline void netif_set_gso_max_size(struct net_device *dev,					  unsigned int size){	/* dev->gso_max_size is read locklessly from sk_setup_caps() */	WRITE_ONCE(dev->gso_max_size, size);	if (size <= GSO_LEGACY_MAX_SIZE)		WRITE_ONCE(dev->gso_ipv4_max_size, size);} static inline void netif_set_gso_max_segs(struct net_device *dev,					  unsigned int segs){	/* dev->gso_max_segs is read locklessly from sk_setup_caps() */	WRITE_ONCE(dev->gso_max_segs, segs);} static inline void netif_set_gro_max_size(struct net_device *dev,					  unsigned int size){	/* This pairs with the READ_ONCE() in skb_gro_receive() */	WRITE_ONCE(dev->gro_max_size, size);	if (size <= GRO_LEGACY_MAX_SIZE)		WRITE_ONCE(dev->gro_ipv4_max_size, size);} static inline void netif_set_gso_ipv4_max_size(struct net_device *dev,					       unsigned int size){	/* dev->gso_ipv4_max_size is read locklessly from sk_setup_caps() */	WRITE_ONCE(dev->gso_ipv4_max_size, size);} static inline void netif_set_gro_ipv4_max_size(struct net_device *dev,					       unsigned int size){	/* This pairs with the READ_ONCE() in skb_gro_receive() */	WRITE_ONCE(dev->gro_ipv4_max_size, size);} int rps_cpumask_housekeeping(struct cpumask *mask); #if defined(CONFIG_DEBUG_NET) && defined(CONFIG_BPF_SYSCALL)void xdp_do_check_flushed(struct napi_struct *napi);#elsestatic inline void xdp_do_check_flushed(struct napi_struct *napi) { }#endif struct napi_struct *napi_by_id(unsigned int napi_id);#endif