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
10struct 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
24struct 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
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
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
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
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
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
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
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