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25763b3c | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
96fbc13d AZ |
2 | /* |
3 | * Copyright (c) 2017 Nicira, Inc. | |
96fbc13d AZ |
4 | */ |
5 | ||
6 | #ifndef METER_H | |
7 | #define METER_H 1 | |
8 | ||
9 | #include <linux/init.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/kernel.h> | |
12 | #include <linux/netlink.h> | |
13 | #include <linux/openvswitch.h> | |
14 | #include <linux/genetlink.h> | |
15 | #include <linux/skbuff.h> | |
c7c4c44c | 16 | #include <linux/bits.h> |
96fbc13d AZ |
17 | |
18 | #include "flow.h" | |
19 | struct datapath; | |
20 | ||
21 | #define DP_MAX_BANDS 1 | |
c7c4c44c | 22 | #define DP_METER_ARRAY_SIZE_MIN BIT_ULL(10) |
eb58eebc | 23 | #define DP_METER_NUM_MAX (200000UL) |
96fbc13d AZ |
24 | |
25 | struct dp_meter_band { | |
26 | u32 type; | |
27 | u32 rate; | |
28 | u32 burst_size; | |
e5735887 | 29 | u64 bucket; /* 1/1000 packets, or in bits */ |
96fbc13d AZ |
30 | struct ovs_flow_stats stats; |
31 | }; | |
32 | ||
33 | struct dp_meter { | |
34 | spinlock_t lock; /* Per meter lock */ | |
35 | struct rcu_head rcu; | |
96fbc13d AZ |
36 | u32 id; |
37 | u16 kbps:1, keep_stats:1; | |
38 | u16 n_bands; | |
39 | u32 max_delta_t; | |
40 | u64 used; | |
41 | struct ovs_flow_stats stats; | |
42 | struct dp_meter_band bands[]; | |
43 | }; | |
44 | ||
c7c4c44c TZ |
45 | struct dp_meter_instance { |
46 | struct rcu_head rcu; | |
47 | u32 n_meters; | |
48 | struct dp_meter __rcu *dp_meters[]; | |
49 | }; | |
50 | ||
51 | struct dp_meter_table { | |
52 | struct dp_meter_instance __rcu *ti; | |
53 | u32 count; | |
eb58eebc | 54 | u32 max_meters_allowed; |
c7c4c44c TZ |
55 | }; |
56 | ||
96fbc13d AZ |
57 | extern struct genl_family dp_meter_genl_family; |
58 | int ovs_meters_init(struct datapath *dp); | |
59 | void ovs_meters_exit(struct datapath *dp); | |
60 | bool ovs_meter_execute(struct datapath *dp, struct sk_buff *skb, | |
61 | struct sw_flow_key *key, u32 meter_id); | |
62 | ||
63 | #endif /* meter.h */ |