tc_mpls.h

 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	int action; /* tcf_action */
14	u8 tcfm_tc;
15	u8 tcfm_ttl;
16	u8 tcfm_bos;
17	__be16 tcfm_proto;
18	struct rcu_head	rcu;
19};
20
21#define ACT_MPLS_TC_NOT_SET	0xff
22#define ACT_MPLS_BOS_NOT_SET	0xff
23#define ACT_MPLS_LABEL_NOT_SET	0xffffffff
24
25struct tcf_mpls {
26	struct tc_action common;
27	struct tcf_mpls_params __rcu *mpls_p;
28};
29#define to_mpls(a) ((struct tcf_mpls *)a)
30
31static inline u32 tcf_mpls_action(const struct tc_action *a)
32{
33	u32 tcfm_action;
34
35	rcu_read_lock();
36	tcfm_action = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_action;
37	rcu_read_unlock();
38
39	return tcfm_action;
40}
41
42static inline __be16 tcf_mpls_proto(const struct tc_action *a)
43{
44	__be16 tcfm_proto;
45
46	rcu_read_lock();
47	tcfm_proto = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_proto;
48	rcu_read_unlock();
49
50	return tcfm_proto;
51}
52
53static inline u32 tcf_mpls_label(const struct tc_action *a)
54{
55	u32 tcfm_label;
56
57	rcu_read_lock();
58	tcfm_label = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_label;
59	rcu_read_unlock();
60
61	return tcfm_label;
62}
63
64static inline u8 tcf_mpls_tc(const struct tc_action *a)
65{
66	u8 tcfm_tc;
67
68	rcu_read_lock();
69	tcfm_tc = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_tc;
70	rcu_read_unlock();
71
72	return tcfm_tc;
73}
74
75static inline u8 tcf_mpls_bos(const struct tc_action *a)
76{
77	u8 tcfm_bos;
78
79	rcu_read_lock();
80	tcfm_bos = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_bos;
81	rcu_read_unlock();
82
83	return tcfm_bos;
84}
85
86static inline u8 tcf_mpls_ttl(const struct tc_action *a)
87{
88	u8 tcfm_ttl;
89
90	rcu_read_lock();
91	tcfm_ttl = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_ttl;
92	rcu_read_unlock();
93
94	return tcfm_ttl;
95}
96
97#endif /* __NET_TC_MPLS_H */