25 lines
		
	
	
		
			902 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			902 B
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * TCP Vegas congestion control interface
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 */
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#ifndef __TCP_VEGAS_H
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#define __TCP_VEGAS_H 1
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/* Vegas variables */
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struct vegas {
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	u32	beg_snd_nxt;	/* right edge during last RTT */
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	u32	beg_snd_una;	/* left edge  during last RTT */
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	u32	beg_snd_cwnd;	/* saves the size of the cwnd */
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	u8	doing_vegas_now;/* if true, do vegas for this RTT */
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	u16	cntRTT;		/* # of RTTs measured within last RTT */
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	u32	minRTT;		/* min of RTTs measured within last RTT (in usec) */
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	u32	baseRTT;	/* the min of all Vegas RTT measurements seen (in usec) */
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};
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extern void tcp_vegas_init(struct sock *sk);
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extern void tcp_vegas_state(struct sock *sk, u8 ca_state);
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extern void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us);
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extern void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
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extern void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
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#endif	/* __TCP_VEGAS_H */
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