include/net/tc_act/tc_sample.h

   1 #ifndef __NET_TC_SAMPLE_H
   2 #define __NET_TC_SAMPLE_H
   3
   4 #include <net/act_api.h>
   5 #include <linux/tc_act/tc_sample.h>
   6 #include <net/psample.h>
   7
   8 struct tcf_sample {
   9         struct tc_action common;
  10         u32 rate;
  11         bool truncate;
  12         u32 trunc_size;
  13         struct psample_group __rcu *psample_group;
  14         u32 psample_group_num;
  15         struct list_head tcfm_list;
  16         struct rcu_head rcu;
  17 };
  18 #define to_sample(a) ((struct tcf_sample *)a)
  19
  20 static inline bool is_tcf_sample(const struct tc_action *a)
  21 {
  22 #ifdef CONFIG_NET_CLS_ACT
  23         return a->ops && a->ops->type == TCA_ACT_SAMPLE;
  24 #else
  25         return false;
  26 #endif
  27 }
  28
  29 static inline __u32 tcf_sample_rate(const struct tc_action *a)
  30 {
  31         return to_sample(a)->rate;
  32 }
  33
  34 static inline bool tcf_sample_truncate(const struct tc_action *a)
  35 {
  36         return to_sample(a)->truncate;
  37 }
  38
  39 static inline int tcf_sample_trunc_size(const struct tc_action *a)
  40 {
  41         return to_sample(a)->trunc_size;
  42 }
  43
  44 static inline struct psample_group *
  45 tcf_sample_psample_group(const struct tc_action *a)
  46 {
  47         return rcu_dereference(to_sample(a)->psample_group);
  48 }
  49
  50 #endif /* __NET_TC_SAMPLE_H */