| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | |
| 30 | static 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 | |
| 39 | static 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 | |
| 50 | static 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 | |
| 61 | static 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 | |
| 72 | static 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 | |
| 83 | static 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 | |
| 94 | static 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 */ |