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TOMOYO Linux Cross Reference
Linux/include/net/gen_stats.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef __NET_GEN_STATS_H
  3 #define __NET_GEN_STATS_H
  4 
  5 #include <linux/gen_stats.h>
  6 #include <linux/socket.h>
  7 #include <linux/rtnetlink.h>
  8 #include <linux/pkt_sched.h>
  9 
 10 struct gnet_stats_basic_cpu {
 11         struct gnet_stats_basic_packed bstats;
 12         struct u64_stats_sync syncp;
 13 } __aligned(2 * sizeof(u64));
 14 
 15 struct net_rate_estimator;
 16 
 17 struct gnet_dump {
 18         spinlock_t *      lock;
 19         struct sk_buff *  skb;
 20         struct nlattr *   tail;
 21 
 22         /* Backward compatibility */
 23         int               compat_tc_stats;
 24         int               compat_xstats;
 25         int               padattr;
 26         void *            xstats;
 27         int               xstats_len;
 28         struct tc_stats   tc_stats;
 29 };
 30 
 31 int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
 32                           struct gnet_dump *d, int padattr);
 33 
 34 int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
 35                                  int tc_stats_type, int xstats_type,
 36                                  spinlock_t *lock, struct gnet_dump *d,
 37                                  int padattr);
 38 
 39 int gnet_stats_copy_basic(const seqcount_t *running,
 40                           struct gnet_dump *d,
 41                           struct gnet_stats_basic_cpu __percpu *cpu,
 42                           struct gnet_stats_basic_packed *b);
 43 void __gnet_stats_copy_basic(const seqcount_t *running,
 44                              struct gnet_stats_basic_packed *bstats,
 45                              struct gnet_stats_basic_cpu __percpu *cpu,
 46                              struct gnet_stats_basic_packed *b);
 47 int gnet_stats_copy_basic_hw(const seqcount_t *running,
 48                              struct gnet_dump *d,
 49                              struct gnet_stats_basic_cpu __percpu *cpu,
 50                              struct gnet_stats_basic_packed *b);
 51 int gnet_stats_copy_rate_est(struct gnet_dump *d,
 52                              struct net_rate_estimator __rcu **ptr);
 53 int gnet_stats_copy_queue(struct gnet_dump *d,
 54                           struct gnet_stats_queue __percpu *cpu_q,
 55                           struct gnet_stats_queue *q, __u32 qlen);
 56 void __gnet_stats_copy_queue(struct gnet_stats_queue *qstats,
 57                              const struct gnet_stats_queue __percpu *cpu_q,
 58                              const struct gnet_stats_queue *q, __u32 qlen);
 59 int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
 60 
 61 int gnet_stats_finish_copy(struct gnet_dump *d);
 62 
 63 int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
 64                       struct gnet_stats_basic_cpu __percpu *cpu_bstats,
 65                       struct net_rate_estimator __rcu **rate_est,
 66                       spinlock_t *lock,
 67                       seqcount_t *running, struct nlattr *opt);
 68 void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
 69 int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
 70                           struct gnet_stats_basic_cpu __percpu *cpu_bstats,
 71                           struct net_rate_estimator __rcu **ptr,
 72                           spinlock_t *lock,
 73                           seqcount_t *running, struct nlattr *opt);
 74 bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
 75 bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
 76                         struct gnet_stats_rate_est64 *sample);
 77 #endif
 78 

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