include/net/gen_stats.h

   1 #ifndef __NET_GEN_STATS_H
   2 #define __NET_GEN_STATS_H
   3
   4 #include <linux/gen_stats.h>
   5 #include <linux/socket.h>
   6 #include <linux/rtnetlink.h>
   7 #include <linux/pkt_sched.h>
   8
   9 struct gnet_stats_basic_cpu {
  10         struct gnet_stats_basic_packed bstats;
  11         struct u64_stats_sync syncp;
  12 };
  13
  14 struct net_rate_estimator;
  15
  16 struct gnet_dump {
  17         spinlock_t *      lock;
  18         struct sk_buff *  skb;
  19         struct nlattr *   tail;
  20
  21         /* Backward compatibility */
  22         int               compat_tc_stats;
  23         int               compat_xstats;
  24         int               padattr;
  25         void *            xstats;
  26         int               xstats_len;
  27         struct tc_stats   tc_stats;
  28 };
  29
  30 int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
  31                           struct gnet_dump *d, int padattr);
  32
  33 int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
  34                                  int tc_stats_type, int xstats_type,
  35                                  spinlock_t *lock, struct gnet_dump *d,
  36                                  int padattr);
  37
  38 int gnet_stats_copy_basic(const seqcount_t *running,
  39                           struct gnet_dump *d,
  40                           struct gnet_stats_basic_cpu __percpu *cpu,
  41                           struct gnet_stats_basic_packed *b);
  42 void __gnet_stats_copy_basic(const seqcount_t *running,
  43                              struct gnet_stats_basic_packed *bstats,
  44                              struct gnet_stats_basic_cpu __percpu *cpu,
  45                              struct gnet_stats_basic_packed *b);
  46 int gnet_stats_copy_rate_est(struct gnet_dump *d,
  47                              struct net_rate_estimator __rcu **ptr);
  48 int gnet_stats_copy_queue(struct gnet_dump *d,
  49                           struct gnet_stats_queue __percpu *cpu_q,
  50                           struct gnet_stats_queue *q, __u32 qlen);
  51 int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
  52
  53 int gnet_stats_finish_copy(struct gnet_dump *d);
  54
  55 int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
  56                       struct gnet_stats_basic_cpu __percpu *cpu_bstats,
  57                       struct net_rate_estimator __rcu **rate_est,
  58                       spinlock_t *stats_lock,
  59                       seqcount_t *running, struct nlattr *opt);
  60 void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
  61 int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
  62                           struct gnet_stats_basic_cpu __percpu *cpu_bstats,
  63                           struct net_rate_estimator __rcu **ptr,
  64                           spinlock_t *stats_lock,
  65                           seqcount_t *running, struct nlattr *opt);
  66 bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
  67 bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
  68                         struct gnet_stats_rate_est64 *sample);
  69 #endif