meter.h (1321B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (c) 2017 Nicira, Inc. 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> 16#include <linux/bits.h> 17 18#include "flow.h" 19struct datapath; 20 21#define DP_MAX_BANDS 1 22#define DP_METER_ARRAY_SIZE_MIN BIT_ULL(10) 23#define DP_METER_NUM_MAX (200000UL) 24 25struct dp_meter_band { 26 u32 type; 27 u32 rate; 28 u32 burst_size; 29 u64 bucket; /* 1/1000 packets, or in bits */ 30 struct ovs_flow_stats stats; 31}; 32 33struct dp_meter { 34 spinlock_t lock; /* Per meter lock */ 35 struct rcu_head rcu; 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 45struct dp_meter_instance { 46 struct rcu_head rcu; 47 u32 n_meters; 48 struct dp_meter __rcu *dp_meters[]; 49}; 50 51struct dp_meter_table { 52 struct dp_meter_instance __rcu *ti; 53 u32 count; 54 u32 max_meters_allowed; 55}; 56 57extern struct genl_family dp_meter_genl_family; 58int ovs_meters_init(struct datapath *dp); 59void ovs_meters_exit(struct datapath *dp); 60bool ovs_meter_execute(struct datapath *dp, struct sk_buff *skb, 61 struct sw_flow_key *key, u32 meter_id); 62 63#endif /* meter.h */