xref: /openbmc/linux/include/net/tc_act/tc_vlan.h (revision 62e59c4e)
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->id == TCA_ID_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 */
83