projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 96fbc13d AZ |
1 | /* |
| 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. | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef METER_H | |
| 10 | #define METER_H 1 | |
| 11 | ||
| 12 | #include <linux/init.h> | |
| 13 | #include <linux/module.h> | |
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/netlink.h> | |
| 16 | #include <linux/openvswitch.h> | |
| 17 | #include <linux/genetlink.h> | |
| 18 | #include <linux/skbuff.h> | |
| 19 | ||
| 20 | #include "flow.h" | |
| 21 | struct datapath; | |
| 22 | ||
| 23 | #define DP_MAX_BANDS 1 | |
| 24 | ||
| 25 | struct dp_meter_band { | |
| 26 | u32 type; | |
| 27 | u32 rate; | |
| 28 | u32 burst_size; | |
| 29 | u32 bucket; /* 1/1000 packets, or in bits */ | |
| 30 | struct ovs_flow_stats stats; | |
| 31 | }; | |
| 32 | ||
| 33 | struct dp_meter { | |
| 34 | spinlock_t lock; /* Per meter lock */ | |
| 35 | struct rcu_head rcu; | |
| 36 | struct hlist_node dp_hash_node; /*Element in datapath->meters | |
| 37 | * hash table. | |
| 38 | */ | |
| 39 | u32 id; | |
| 40 | u16 kbps:1, keep_stats:1; | |
| 41 | u16 n_bands; | |
| 42 | u32 max_delta_t; | |
| 43 | u64 used; | |
| 44 | struct ovs_flow_stats stats; | |
| 45 | struct dp_meter_band bands[]; | |
| 46 | }; | |
| 47 | ||
| 48 | extern struct genl_family dp_meter_genl_family; | |
| 49 | int ovs_meters_init(struct datapath *dp); | |
| 50 | void ovs_meters_exit(struct datapath *dp); | |
| 51 | bool ovs_meter_execute(struct datapath *dp, struct sk_buff *skb, | |
| 52 | struct sw_flow_key *key, u32 meter_id); | |
| 53 | ||
| 54 | #endif /* meter.h */ |