0001
0002 #ifndef __NET_TC_CSUM_H
0003 #define __NET_TC_CSUM_H
0004
0005 #include <linux/types.h>
0006 #include <net/act_api.h>
0007 #include <linux/tc_act/tc_csum.h>
0008
0009 struct tcf_csum_params {
0010 u32 update_flags;
0011 struct rcu_head rcu;
0012 };
0013
0014 struct tcf_csum {
0015 struct tc_action common;
0016
0017 struct tcf_csum_params __rcu *params;
0018 };
0019 #define to_tcf_csum(a) ((struct tcf_csum *)a)
0020
0021 static inline bool is_tcf_csum(const struct tc_action *a)
0022 {
0023 #ifdef CONFIG_NET_CLS_ACT
0024 if (a->ops && a->ops->id == TCA_ID_CSUM)
0025 return true;
0026 #endif
0027 return false;
0028 }
0029
0030 static inline u32 tcf_csum_update_flags(const struct tc_action *a)
0031 {
0032 u32 update_flags;
0033
0034 rcu_read_lock();
0035 update_flags = rcu_dereference(to_tcf_csum(a)->params)->update_flags;
0036 rcu_read_unlock();
0037
0038 return update_flags;
0039 }
0040
0041 #endif