include/net/tc_act/tc_vlan.h

   1 /*
   2  * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  */
   9
  10 #ifndef __NET_TC_VLAN_H
  11 #define __NET_TC_VLAN_H
  12
  13 #include <net/act_api.h>
  14 #include <linux/tc_act/tc_vlan.h>
  15
  16 struct tcf_vlan_params {
  17         int               tcfv_action;
  18         u16               tcfv_push_vid;
  19         __be16            tcfv_push_proto;
  20         u8                tcfv_push_prio;
  21         struct rcu_head   rcu;
  22 };
  23
  24 struct tcf_vlan {
  25         struct tc_action        common;
  26         struct tcf_vlan_params __rcu *vlan_p;
  27 };
  28 #define to_vlan(a) ((struct tcf_vlan *)a)
  29
  30 static inline bool is_tcf_vlan(const struct tc_action *a)
  31 {
  32 #ifdef CONFIG_NET_CLS_ACT
  33         if (a->ops && a->ops->type == TCA_ACT_VLAN)
  34                 return true;
  35 #endif
  36         return false;
  37 }
  38
  39 static inline u32 tcf_vlan_action(const struct tc_action *a)
  40 {
  41         u32 tcfv_action;
  42
  43         rcu_read_lock();
  44         tcfv_action = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_action;
  45         rcu_read_unlock();
  46
  47         return tcfv_action;
  48 }
  49
  50 static inline u16 tcf_vlan_push_vid(const struct tc_action *a)
  51 {
  52         u16 tcfv_push_vid;
  53
  54         rcu_read_lock();
  55         tcfv_push_vid = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_vid;
  56         rcu_read_unlock();
  57
  58         return tcfv_push_vid;
  59 }
  60
  61 static inline __be16 tcf_vlan_push_proto(const struct tc_action *a)
  62 {
  63         __be16 tcfv_push_proto;
  64
  65         rcu_read_lock();
  66         tcfv_push_proto = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_proto;
  67         rcu_read_unlock();
  68
  69         return tcfv_push_proto;
  70 }
  71
  72 static inline u8 tcf_vlan_push_prio(const struct tc_action *a)
  73 {
  74         u8 tcfv_push_prio;
  75
  76         rcu_read_lock();
  77         tcfv_push_prio = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_prio;
  78         rcu_read_unlock();
  79
  80         return tcfv_push_prio;
  81 }
  82 #endif /* __NET_TC_VLAN_H */