1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* Copyright 2020 NXP */
3
4#ifndef __NET_TC_GATE_H
5#define __NET_TC_GATE_H
6
7#include <net/act_api.h>
8#include <linux/tc_act/tc_gate.h>
9
10struct action_gate_entry {
11	u8			gate_state;
12	u32			interval;
13	s32			ipv;
14	s32			maxoctets;
15};
16
17struct tcfg_gate_entry {
18	int			index;
19	u8			gate_state;
20	u32			interval;
21	s32			ipv;
22	s32			maxoctets;
23	struct list_head	list;
24};
25
26struct tcf_gate_params {
27	s32			tcfg_priority;
28	u64			tcfg_basetime;
29	u64			tcfg_cycletime;
30	u64			tcfg_cycletime_ext;
31	u32			tcfg_flags;
32	s32			tcfg_clockid;
33	size_t			num_entries;
34	struct list_head	entries;
35};
36
37#define GATE_ACT_GATE_OPEN	BIT(0)
38#define GATE_ACT_PENDING	BIT(1)
39
40struct tcf_gate {
41	struct tc_action	common;
42	struct tcf_gate_params	param;
43	u8			current_gate_status;
44	ktime_t			current_close_time;
45	u32			current_entry_octets;
46	s32			current_max_octets;
47	struct tcfg_gate_entry	*next_entry;
48	struct hrtimer		hitimer;
49	enum tk_offsets		tk_offset;
50};
51
52#define to_gate(a) ((struct tcf_gate *)a)
53
54static inline bool is_tcf_gate(const struct tc_action *a)
55{
56#ifdef CONFIG_NET_CLS_ACT
57	if (a->ops && a->ops->id == TCA_ID_GATE)
58		return true;
59#endif
60	return false;
61}
62
63static inline s32 tcf_gate_prio(const struct tc_action *a)
64{
65	s32 tcfg_prio;
66
67	tcfg_prio = to_gate(a)->param.tcfg_priority;
68
69	return tcfg_prio;
70}
71
72static inline u64 tcf_gate_basetime(const struct tc_action *a)
73{
74	u64 tcfg_basetime;
75
76	tcfg_basetime = to_gate(a)->param.tcfg_basetime;
77
78	return tcfg_basetime;
79}
80
81static inline u64 tcf_gate_cycletime(const struct tc_action *a)
82{
83	u64 tcfg_cycletime;
84
85	tcfg_cycletime = to_gate(a)->param.tcfg_cycletime;
86
87	return tcfg_cycletime;
88}
89
90static inline u64 tcf_gate_cycletimeext(const struct tc_action *a)
91{
92	u64 tcfg_cycletimeext;
93
94	tcfg_cycletimeext = to_gate(a)->param.tcfg_cycletime_ext;
95
96	return tcfg_cycletimeext;
97}
98
99static inline u32 tcf_gate_num_entries(const struct tc_action *a)
100{
101	u32 num_entries;
102
103	num_entries = to_gate(a)->param.num_entries;
104
105	return num_entries;
106}
107
108static inline struct action_gate_entry
109			*tcf_gate_get_list(const struct tc_action *a)
110{
111	struct action_gate_entry *oe;
112	struct tcf_gate_params *p;
113	struct tcfg_gate_entry *entry;
114	u32 num_entries;
115	int i = 0;
116
117	p = &to_gate(a)->param;
118	num_entries = p->num_entries;
119
120	list_for_each_entry(entry, &p->entries, list)
121		i++;
122
123	if (i != num_entries)
124		return NULL;
125
126	oe = kcalloc(num_entries, sizeof(*oe), GFP_ATOMIC);
127	if (!oe)
128		return NULL;
129
130	i = 0;
131	list_for_each_entry(entry, &p->entries, list) {
132		oe[i].gate_state = entry->gate_state;
133		oe[i].interval = entry->interval;
134		oe[i].ipv = entry->ipv;
135		oe[i].maxoctets = entry->maxoctets;
136		i++;
137	}
138
139	return oe;
140}
141#endif
142