xref: /openbmc/linux/include/net/tc_act/tc_vlan.h (revision 8365a898)
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 	struct rcu_head   rcu;
18 };
19 
20 struct tcf_vlan {
21 	struct tc_action	common;
22 	struct tcf_vlan_params __rcu *vlan_p;
23 };
24 #define to_vlan(a) ((struct tcf_vlan *)a)
25 
26 static inline bool is_tcf_vlan(const struct tc_action *a)
27 {
28 #ifdef CONFIG_NET_CLS_ACT
29 	if (a->ops && a->ops->id == TCA_ID_VLAN)
30 		return true;
31 #endif
32 	return false;
33 }
34 
35 static inline u32 tcf_vlan_action(const struct tc_action *a)
36 {
37 	u32 tcfv_action;
38 
39 	rcu_read_lock();
40 	tcfv_action = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_action;
41 	rcu_read_unlock();
42 
43 	return tcfv_action;
44 }
45 
46 static inline u16 tcf_vlan_push_vid(const struct tc_action *a)
47 {
48 	u16 tcfv_push_vid;
49 
50 	rcu_read_lock();
51 	tcfv_push_vid = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_vid;
52 	rcu_read_unlock();
53 
54 	return tcfv_push_vid;
55 }
56 
57 static inline __be16 tcf_vlan_push_proto(const struct tc_action *a)
58 {
59 	__be16 tcfv_push_proto;
60 
61 	rcu_read_lock();
62 	tcfv_push_proto = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_proto;
63 	rcu_read_unlock();
64 
65 	return tcfv_push_proto;
66 }
67 
68 static inline u8 tcf_vlan_push_prio(const struct tc_action *a)
69 {
70 	u8 tcfv_push_prio;
71 
72 	rcu_read_lock();
73 	tcfv_push_prio = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_prio;
74 	rcu_read_unlock();
75 
76 	return tcfv_push_prio;
77 }
78 #endif /* __NET_TC_VLAN_H */
79