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[TCP] Westwood: comment fixes 

Cleanup some comments and add more references

Signed-off-by: Luca De Cicco <ldecicco@gmail.com>
Signed-off-by: Stephen Hemminger <shemminger@dxpl.pdx.osdl.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Luca De Cicco 2006-06-11 23:01:39 -07:00 committed by David S. Miller
parent f61e29018a
commit b7d7a9e3c9
1 changed files with 21 additions and 4 deletions
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25
net/ipv4/tcp_westwood.c
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@ -1,7 +1,24 @@
/*
* 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
*/
@ -191,7 +208,7 @@ static void tcp_westwood_event(struct sock *sk, enum tcp_ca_event event)
{
struct tcp_sock *tp = tcp_sk(sk);
struct westwood *w = inet_csk_ca(sk);
switch(event) {
case CA_EVENT_FAST_ACK:
westwood_fast_bw(sk);