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1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
4  */
5 
6 #ifndef __NET_TC_VLAN_H
7 #define __NET_TC_VLAN_H
8 
9 #include <net/act_api.h>
10 #include <linux/tc_act/tc_vlan.h>
11 
12 struct tcf_vlan_params {
13 	int               tcfv_action;
14 	u16               tcfv_push_vid;
15 	__be16            tcfv_push_proto;
16 	u8                tcfv_push_prio;
17 	bool              tcfv_push_prio_exists;
18 	struct rcu_head   rcu;
19 };
20 
21 struct tcf_vlan {
22 	struct tc_action	common;
23 	struct tcf_vlan_params __rcu *vlan_p;
24 };
25 #define to_vlan(a) ((struct tcf_vlan *)a)
26 
is_tcf_vlan(const struct tc_action * a)27 static inline bool is_tcf_vlan(const struct tc_action *a)
28 {
29 #ifdef CONFIG_NET_CLS_ACT
30 	if (a->ops && a->ops->id == TCA_ID_VLAN)
31 		return true;
32 #endif
33 	return false;
34 }
35 
tcf_vlan_action(const struct tc_action * a)36 static inline u32 tcf_vlan_action(const struct tc_action *a)
37 {
38 	u32 tcfv_action;
39 
40 	rcu_read_lock();
41 	tcfv_action = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_action;
42 	rcu_read_unlock();
43 
44 	return tcfv_action;
45 }
46 
tcf_vlan_push_vid(const struct tc_action * a)47 static inline u16 tcf_vlan_push_vid(const struct tc_action *a)
48 {
49 	u16 tcfv_push_vid;
50 
51 	rcu_read_lock();
52 	tcfv_push_vid = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_vid;
53 	rcu_read_unlock();
54 
55 	return tcfv_push_vid;
56 }
57 
tcf_vlan_push_proto(const struct tc_action * a)58 static inline __be16 tcf_vlan_push_proto(const struct tc_action *a)
59 {
60 	__be16 tcfv_push_proto;
61 
62 	rcu_read_lock();
63 	tcfv_push_proto = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_proto;
64 	rcu_read_unlock();
65 
66 	return tcfv_push_proto;
67 }
68 
tcf_vlan_push_prio(const struct tc_action * a)69 static inline u8 tcf_vlan_push_prio(const struct tc_action *a)
70 {
71 	u8 tcfv_push_prio;
72 
73 	rcu_read_lock();
74 	tcfv_push_prio = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_prio;
75 	rcu_read_unlock();
76 
77 	return tcfv_push_prio;
78 }
79 #endif /* __NET_TC_VLAN_H */
80