cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tc_mpls.h (2004B)

      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 */