include/net/gen_stats.h

Source file repositories/reference/linux-study-clean/include/net/gen_stats.h

File Facts

System
Linux kernel
Corpus path
include/net/gen_stats.h
Extension
.h
Size
3109 bytes
Lines
85
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

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,
			  const struct gnet_stats_basic_sync __percpu *cpu,
			  const struct gnet_stats_basic_sync *b, bool running);
void gnet_stats_add_basic(struct gnet_stats_basic_sync *bstats,
			  const struct gnet_stats_basic_sync __percpu *cpu,
			  const struct gnet_stats_basic_sync *b, bool running);
int gnet_stats_copy_basic_hw(struct gnet_dump *d,
			     const struct gnet_stats_basic_sync __percpu *cpu,
			     const 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,
			  const struct gnet_stats_queue __percpu *cpu_q,
			  const 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

Annotation

Implementation Notes