1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ 2 /* Copyright (C) 2019 Netronome Systems, Inc. */ 3 4 #ifndef __NET_TC_MPLS_H 5 #define __NET_TC_MPLS_H 6 7 #include <linux/tc_act/tc_mpls.h> 8 #include <net/act_api.h> 9 10 struct tcf_mpls_params { 11 int tcfm_action; 12 u32 tcfm_label; 13 u8 tcfm_tc; 14 u8 tcfm_ttl; 15 u8 tcfm_bos; 16 __be16 tcfm_proto; 17 struct rcu_head rcu; 18 }; 19 20 #define ACT_MPLS_TC_NOT_SET 0xff 21 #define ACT_MPLS_BOS_NOT_SET 0xff 22 #define ACT_MPLS_LABEL_NOT_SET 0xffffffff 23 24 struct tcf_mpls { 25 struct tc_action common; 26 struct tcf_mpls_params __rcu *mpls_p; 27 }; 28 #define to_mpls(a) ((struct tcf_mpls *)a) 29 is_tcf_mpls(const struct tc_action * a)30static inline bool is_tcf_mpls(const struct tc_action *a) 31 { 32 #ifdef CONFIG_NET_CLS_ACT 33 if (a->ops && a->ops->id == TCA_ID_MPLS) 34 return true; 35 #endif 36 return false; 37 } 38 tcf_mpls_action(const struct tc_action * a)39static inline u32 tcf_mpls_action(const struct tc_action *a) 40 { 41 u32 tcfm_action; 42 43 rcu_read_lock(); 44 tcfm_action = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_action; 45 rcu_read_unlock(); 46 47 return tcfm_action; 48 } 49 tcf_mpls_proto(const struct tc_action * a)50static inline __be16 tcf_mpls_proto(const struct tc_action *a) 51 { 52 __be16 tcfm_proto; 53 54 rcu_read_lock(); 55 tcfm_proto = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_proto; 56 rcu_read_unlock(); 57 58 return tcfm_proto; 59 } 60 tcf_mpls_label(const struct tc_action * a)61static inline u32 tcf_mpls_label(const struct tc_action *a) 62 { 63 u32 tcfm_label; 64 65 rcu_read_lock(); 66 tcfm_label = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_label; 67 rcu_read_unlock(); 68 69 return tcfm_label; 70 } 71 tcf_mpls_tc(const struct tc_action * a)72static inline u8 tcf_mpls_tc(const struct tc_action *a) 73 { 74 u8 tcfm_tc; 75 76 rcu_read_lock(); 77 tcfm_tc = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_tc; 78 rcu_read_unlock(); 79 80 return tcfm_tc; 81 } 82 tcf_mpls_bos(const struct tc_action * a)83static inline u8 tcf_mpls_bos(const struct tc_action *a) 84 { 85 u8 tcfm_bos; 86 87 rcu_read_lock(); 88 tcfm_bos = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_bos; 89 rcu_read_unlock(); 90 91 return tcfm_bos; 92 } 93 tcf_mpls_ttl(const struct tc_action * a)94static inline u8 tcf_mpls_ttl(const struct tc_action *a) 95 { 96 u8 tcfm_ttl; 97 98 rcu_read_lock(); 99 tcfm_ttl = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_ttl; 100 rcu_read_unlock(); 101 102 return tcfm_ttl; 103 } 104 105 #endif /* __NET_TC_MPLS_H */ 106