include/net/tc_act/tc_csum.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NET_TC_CSUM_H
   3 #define __NET_TC_CSUM_H
   4
   5 #include <linux/types.h>
   6 #include <net/act_api.h>
   7 #include <linux/tc_act/tc_csum.h>
   8
   9 struct tcf_csum_params {
  10         int action;
  11         u32 update_flags;
  12         struct rcu_head rcu;
  13 };
  14
  15 struct tcf_csum {
  16         struct tc_action common;
  17
  18         struct tcf_csum_params __rcu *params;
  19 };
  20 #define to_tcf_csum(a) ((struct tcf_csum *)a)
  21
  22 static inline bool is_tcf_csum(const struct tc_action *a)
  23 {
  24 #ifdef CONFIG_NET_CLS_ACT
  25         if (a->ops && a->ops->type == TCA_ACT_CSUM)
  26                 return true;
  27 #endif
  28         return false;
  29 }
  30
  31 static inline u32 tcf_csum_update_flags(const struct tc_action *a)
  32 {
  33         u32 update_flags;
  34
  35         rcu_read_lock();
  36         update_flags = rcu_dereference(to_tcf_csum(a)->params)->update_flags;
  37         rcu_read_unlock();
  38
  39         return update_flags;
  40 }
  41
  42 #endif /* __NET_TC_CSUM_H */