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
10 struct action_gate_entry {
11 u8 gate_state;
12 u32 interval;
13 s32 ipv;
14 s32 maxoctets;
15 };
16
17 struct 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
26 struct 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
40 struct 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
54 static 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
63 static 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
72 static 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
81 static 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
90 static 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
99 static 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
108 static 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
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