MAJOR=4
MINOR=3
DEVNAME=tty3
     #ˆÄÌƒdÃ¿Ê õ    #/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_GEN_STATS_H
#define __NET_GEN_STATS_H

#include <linux/gen_stats.h>
#include <linux/socket.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

/* Throughput stats.
 * Must be initialized beforehand with gnet_stats_basic_sync_init().
 *
 * If no reads can ever occur parallel to writes (e.g. stack-allocated
 * bstats), then the internal stat values can be written to and read
 * from directly. Otherwise, use _bstats_set/update() for writes and
 * gnet_stats_add_basic() for reads.
 */
struct gnet_stats_basic_sync {
	u64_stats_t bytes;
	u64_stats_t packets;
	struct u64_stats_sync syncp;
} __aligned(2 * sizeof(u64));

struct net_rate_estimator;

struct gnet_dump {
	spinlock_t *      lock;
	struct sk_buff *  skb;
	struct nlattr *   tail;

	/* Backward compatibility */
	int               compat_tc_stats;
	int               compat_xstats;
	int               padattr;
	void *            xstats;
	int               xstats_len;
	struct tc_stats   tc_stats;
};

void gnet_stats_basic_sync_init(struct gnet_stats_basic_sync *b);
int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
			  struct gnet_dump *d, int padattr);

int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
				 int tc_stats_type, int xstats_type,
				 spinlock_t *lock, struct gnet_dump *d,
				 int padattr);

int gnet_stats_copy_basic(struct gnet_dump *d,
			  struct gnet_stats_basic_sync __percpu *cpu,
			  struct gnet_stats_basic_sync *b, bool running);
void gnet_stats_add_basic(struct gnet_stats_basic_sync *bstats,
			  struct gnet_stats_basic_sync __percpu *cpu,
			  struct gnet_stats_basic_sync *b, bool running);
int gnet_stats_copy_basic_hw(struct gnet_dump *d,
			     struct gnet_stats_basic_sync __percpu *cpu,
			     struct gnet_stats_basic_sync *b, bool running);
int gnet_stats_copy_rate_est(struct gnet_dump *d,
			     struct net_rate_estimator __rcu **ptr);
int gnet_stats_copy_queue(struct gnet_dump *d,
			  struct gnet_stats_queue __percpu *cpu_q,
			  struct gnet_stats_queue *q, __u32 qlen);
void gnet_stats_add_queue(struct gnet_stats_queue *qstats,
			  const struct gnet_stats_queue __percpu *cpu_q,
			  const struct gnet_stats_queue *q);
int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);

int gnet_stats_finish_copy(struct gnet_dump *d);

int gen_new_estimator(struct gnet_stats_basic_sync *bstats,
		      struct gnet_stats_basic_sync __percpu *cpu_bstats,
		      struct net_rate_estimator __rcu **rate_est,
		      spinlock_t *lock,
		      bool running, struct nlattr *opt);
void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
int gen_replace_estimator(struct gnet_stats_basic_sync *bstats,
			  struct gnet_stats_basic_sync __percpu *cpu_bstats,
			  struct net_rate_estimator __rcu **ptr,
			  spinlock_t *lock,
			  bool running, struct nlattr *opt);
bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
			struct gnet_stats_rate_est64 *sample);
#endif
     %ˆÄÌƒoƒÃ¿Ê 6    %/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * inet_dscp.h: helpers for handling differentiated services codepoints (DSCP)
 *
 * DSCP is defined in RFC 2474:
 *
 *        0   1   2   3   4   5   6   7
 *      +---+---+---+---+---+---+---+---+
 *      |         DSCP          |  CU   |
 *      +---+---+---+---+---+---+---+---+
 *
 *        DSCP: differentiated services codepoint
 *        CU:   currently unused
 *
 * The whole DSCP + CU bits form the DS field.
 * The DS field is also commonly called TOS or Traffic Class (for IPv6).
 *
 * Note: the CU bits are now used for Explicit Congestion Notification
 *       (RFC 3168).
 */

#ifndef _INET_DSCP_H
#define _INET_DSCP_H

#include <linux/types.h>

/* Special type for storing DSCP values.
 *
 * A dscp_t variable stores a DS field with the CU (ECN) bits cleared.
 * Using dscp_t allows to strictly separate DSCP and ECN bits, thus avoiding
 * bugs where ECN bits are erroneously tak