/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2017 Nicira, Inc. */ #ifndef METER_H #define METER_H 1 #include <linux/init.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/netlink.h> #include <linux/openvswitch.h> #include <linux/genetlink.h> #include <linux/skbuff.h> #include "flow.h" struct datapath; #define DP_MAX_BANDS 1 struct dp_meter_band { u32 type; u32 rate; u32 burst_size; u32 bucket; /* 1/1000 packets, or in bits */ struct ovs_flow_stats stats; }; struct dp_meter { spinlock_t lock; /* Per meter lock */ struct rcu_head rcu; struct hlist_node dp_hash_node; /*Element in datapath->meters * hash table. */ u32 id; u16 kbps:1, keep_stats:1; u16 n_bands; u32 max_delta_t; u64 used; struct ovs_flow_stats stats; struct dp_meter_band bands[]; }; extern struct genl_family dp_meter_genl_family; int ovs_meters_init(struct datapath *dp); void ovs_meters_exit(struct datapath *dp); bool ovs_meter_execute(struct datapath *dp, struct sk_buff *skb, struct sw_flow_key *key, u32 meter_id); #endif /* meter.h */