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Commit b7d7a9e3 authored by Luca De Cicco's avatar Luca De Cicco Committed by David S. Miller
Browse files

[TCP] Westwood: comment fixes 



Cleanup some comments and add more references

Signed-off-by: default avatarLuca De Cicco <ldecicco@gmail.com>
Signed-off-by: default avatarStephen Hemminger <shemminger@dxpl.pdx.osdl.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f61e2901

net/ipv4/tcp_westwood.c

+21 −4
Original line number Diff line number Diff line 
/*

 * TCP Westwood+

 * TCP Westwood+: end-to-end bandwidth estimation for TCP

 *

 *	Angelo Dell'Aera:	TCP Westwood+ support

 *      Angelo Dell'Aera: author of the first version of TCP Westwood+ in Linux 2.4

 *

 * Support at http://c3lab.poliba.it/index.php/Westwood

 * Main references in literature:

 *

 * - Mascolo S, Casetti, M. Gerla et al.

 *   "TCP Westwood: bandwidth estimation for TCP" Proc. ACM Mobicom 2001

 *

 * - A. Grieco, s. Mascolo

 *   "Performance evaluation of New Reno, Vegas, Westwood+ TCP" ACM Computer

 *     Comm. Review, 2004

 *

 * - A. Dell'Aera, L. Grieco, S. Mascolo.

 *   "Linux 2.4 Implementation of Westwood+ TCP with Rate-Halving :

 *    A Performance Evaluation Over the Internet" (ICC 2004), Paris, June 2004

 *

 * Westwood+ employs end-to-end bandwidth measurement to set cwnd and

 * ssthresh after packet loss. The probing phase is as the original Reno.

 */



#include <linux/config.h>
@@ -93,7 +110,7 @@ static void westwood_update_window(struct sock *sk) 
	struct westwood *w = inet_csk_ca(sk);

	s32 delta = tcp_time_stamp - w->rtt_win_sx;



	/* Initialise w->snd_una with the first acked sequence number in order

	/* Initialize w->snd_una with the first acked sequence number in order

	 * to fix mismatch between tp->snd_una and w->snd_una for the first

	 * bandwidth sample

	 */