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 */