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- /* 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
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