Quelle  tc_mpls.h   Sprache: C

/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* Copyright (C) 2019 Netronome Systems, Inc. */

#ifndef __NET_TC_MPLS_H
#define __NET_TC_MPLS_H

#include <linux/tc_act/tc_mpls.h>
#include <net/act_api.h>

struct tcf_mpls_params {
 int tcfm_action;
 u32 tcfm_label;
 int action; /* tcf_action */
 u8 tcfm_tc;
 u8 tcfm_ttl;
 u8 tcfm_bos;
 __be16 tcfm_proto;
 struct rcu_head rcu;
};

#define ACT_MPLS_TC_NOT_SET 0xff
#define ACT_MPLS_BOS_NOT_SET 0xff
#define ACT_MPLS_LABEL_NOT_SET 0xffffffff

struct tcf_mpls {
 struct tc_action common;
 struct tcf_mpls_params __rcu *mpls_p;
};
#define to_mpls(a) ((struct tcf_mpls *)a)

static inline u32 tcf_mpls_action(const struct tc_action *a)
{
 u32 tcfm_action;

 rcu_read_lock();
 tcfm_action = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_action;
 rcu_read_unlock();

 return tcfm_action;
}

static inline __be16 tcf_mpls_proto(const struct tc_action *a)
{
 __be16 tcfm_proto;

 rcu_read_lock();
 tcfm_proto = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_proto;
 rcu_read_unlock();

 return tcfm_proto;
}

static inline u32 tcf_mpls_label(const struct tc_action *a)
{
 u32 tcfm_label;

 rcu_read_lock();
 tcfm_label = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_label;
 rcu_read_unlock();

 return tcfm_label;
}

static inline u8 tcf_mpls_tc(const struct tc_action *a)
{
 u8 tcfm_tc;

 rcu_read_lock();
 tcfm_tc = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_tc;
 rcu_read_unlock();

 return tcfm_tc;
}

static inline u8 tcf_mpls_bos(const struct tc_action *a)
{
 u8 tcfm_bos;

 rcu_read_lock();
 tcfm_bos = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_bos;
 rcu_read_unlock();

 return tcfm_bos;
}

static inline u8 tcf_mpls_ttl(const struct tc_action *a)
{
 u8 tcfm_ttl;

 rcu_read_lock();
 tcfm_ttl = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_ttl;
 rcu_read_unlock();

 return tcfm_ttl;
}

#endif /* __NET_TC_MPLS_H */