cregit-Linux how code gets into the kernel

Release 4.15 net/openvswitch/meter.h

Directory: net/openvswitch
/*
 * Copyright (c) 2017 Nicira, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 */

#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 */

Overall Contributors

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Andy Zhou157100.00%1100.00%
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Directory: net/openvswitch
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