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