[linux-2.6-block.git] / net / openvswitch / meter.h

/* 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 */
Commit	Line	Data
25763b3c	1	/* SPDX-License-Identifier: GPL-2.0-only */
96fbc13d AZ	2	/*
96fbc13d AZ	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>
	16
	17	#include "flow.h"
	18	struct datapath;
	19
	20	#define DP_MAX_BANDS 1
	21
	22	struct dp_meter_band {
	23	u32 type;
	24	u32 rate;
	25	u32 burst_size;
	26	u32 bucket; /* 1/1000 packets, or in bits */
	27	struct ovs_flow_stats stats;
	28	};
	29
	30	struct dp_meter {
	31	spinlock_t lock; /* Per meter lock */
	32	struct rcu_head rcu;
	33	struct hlist_node dp_hash_node; /*Element in datapath->meters
	34	* hash table.
	35	*/
	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
	45	extern struct genl_family dp_meter_genl_family;
	46	int ovs_meters_init(struct datapath *dp);
	47	void ovs_meters_exit(struct datapath *dp);
	48	bool ovs_meter_execute(struct datapath dp, struct sk_buff skb,
	49	struct sw_flow_key *key, u32 meter_id);
	50
	51	#endif /* meter.h */