diff options
author | ps <ps@FreeBSD.org> | 2005-05-25 17:55:27 +0000 |
---|---|---|
committer | ps <ps@FreeBSD.org> | 2005-05-25 17:55:27 +0000 |
commit | 8512119a50217a179f2ba29f583098be768a752b (patch) | |
tree | d50c228e7b10212ea26f326ecaefb851ec9d6cba /sys/netinet/tcp_input.c | |
parent | a0ef9a2b74778fc9242828e3a012e02ddab4449d (diff) | |
download | FreeBSD-src-8512119a50217a179f2ba29f583098be768a752b.zip FreeBSD-src-8512119a50217a179f2ba29f583098be768a752b.tar.gz |
This is conform with the terminology in
M.Mathis and J.Mahdavi,
"Forward Acknowledgement: Refining TCP Congestion Control"
SIGCOMM'96, August 1996.
Submitted by: Noritoshi Demizu, Raja Mukerji
Diffstat (limited to 'sys/netinet/tcp_input.c')
-rw-r--r-- | sys/netinet/tcp_input.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index c3b562f..cbd4068 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -1840,9 +1840,8 @@ trimthenstep6: else if (++tp->t_dupacks > tcprexmtthresh || ((tcp_do_newreno || tp->sack_enable) && IN_FASTRECOVERY(tp))) { - if (tp->sack_enable && IN_FASTRECOVERY(tp)) { - int data_in_pipe; + int awnd; /* * Compute the amount of data in flight first. @@ -1850,9 +1849,9 @@ trimthenstep6: * we have less than 1/2 the original window's * worth of data in flight. */ - data_in_pipe = (tp->snd_nxt - tp->rcv_lastsack) + + awnd = (tp->snd_nxt - tp->snd_fack) + tp->sackhint.sack_bytes_rexmit; - if (data_in_pipe < tp->snd_ssthresh) { + if (awnd < tp->snd_ssthresh) { tp->snd_cwnd += tp->t_maxseg; if (tp->snd_cwnd > tp->snd_ssthresh) tp->snd_cwnd = tp->snd_ssthresh; |