1 /* SPDX-License-Identifier: GPL-2.0-only */ 1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* 2 /*
3 * Copyright (c) 2017 Nicira, Inc. 3 * Copyright (c) 2017 Nicira, Inc.
4 */ 4 */
5 5
6 #ifndef METER_H 6 #ifndef METER_H
7 #define METER_H 1 7 #define METER_H 1
8 8
9 #include <linux/init.h> 9 #include <linux/init.h>
10 #include <linux/module.h> 10 #include <linux/module.h>
11 #include <linux/kernel.h> 11 #include <linux/kernel.h>
12 #include <linux/netlink.h> 12 #include <linux/netlink.h>
13 #include <linux/openvswitch.h> 13 #include <linux/openvswitch.h>
14 #include <linux/skbuff.h> 14 #include <linux/skbuff.h>
15 #include <linux/bits.h> 15 #include <linux/bits.h>
16 16
17 #include "flow.h" 17 #include "flow.h"
18 struct datapath; 18 struct datapath;
19 19
20 #define DP_MAX_BANDS 1 20 #define DP_MAX_BANDS 1
21 #define DP_METER_ARRAY_SIZE_MIN BIT_ULL(10) 21 #define DP_METER_ARRAY_SIZE_MIN BIT_ULL(10)
22 #define DP_METER_NUM_MAX (200000UL) 22 #define DP_METER_NUM_MAX (200000UL)
23 23
24 struct dp_meter_band { 24 struct dp_meter_band {
25 u32 type; 25 u32 type;
26 u32 rate; 26 u32 rate;
27 u32 burst_size; 27 u32 burst_size;
28 u64 bucket; /* 1/1000 packets, or in b 28 u64 bucket; /* 1/1000 packets, or in bits */
29 struct ovs_flow_stats stats; 29 struct ovs_flow_stats stats;
30 }; 30 };
31 31
32 struct dp_meter { 32 struct dp_meter {
33 spinlock_t lock; /* Per meter lock 33 spinlock_t lock; /* Per meter lock */
34 struct rcu_head rcu; 34 struct rcu_head rcu;
35 u32 id; 35 u32 id;
36 u16 kbps:1, keep_stats:1; 36 u16 kbps:1, keep_stats:1;
37 u16 n_bands; 37 u16 n_bands;
38 u32 max_delta_t; 38 u32 max_delta_t;
39 u64 used; 39 u64 used;
40 struct ovs_flow_stats stats; 40 struct ovs_flow_stats stats;
41 struct dp_meter_band bands[] __counted 41 struct dp_meter_band bands[] __counted_by(n_bands);
42 }; 42 };
43 43
44 struct dp_meter_instance { 44 struct dp_meter_instance {
45 struct rcu_head rcu; 45 struct rcu_head rcu;
46 u32 n_meters; 46 u32 n_meters;
47 struct dp_meter __rcu *dp_meters[] __c 47 struct dp_meter __rcu *dp_meters[] __counted_by(n_meters);
48 }; 48 };
49 49
50 struct dp_meter_table { 50 struct dp_meter_table {
51 struct dp_meter_instance __rcu *ti; 51 struct dp_meter_instance __rcu *ti;
52 u32 count; 52 u32 count;
53 u32 max_meters_allowed; 53 u32 max_meters_allowed;
54 }; 54 };
55 55
56 extern struct genl_family dp_meter_genl_family 56 extern struct genl_family dp_meter_genl_family;
57 int ovs_meters_init(struct datapath *dp); 57 int ovs_meters_init(struct datapath *dp);
58 void ovs_meters_exit(struct datapath *dp); 58 void ovs_meters_exit(struct datapath *dp);
59 bool ovs_meter_execute(struct datapath *dp, st 59 bool ovs_meter_execute(struct datapath *dp, struct sk_buff *skb,
60 struct sw_flow_key *key 60 struct sw_flow_key *key, u32 meter_id);
61 61
62 #endif /* meter.h */ 62 #endif /* meter.h */
63 63
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