summaryrefslogtreecommitdiffstats
path: root/src/vnet/tcp/tcp_newreno.c
diff options
context:
space:
mode:
authorFlorin Coras <fcoras@cisco.com>2019-09-03 12:37:11 -0700
committerJohn Lo <loj@cisco.com>2019-09-04 16:18:01 +0000
commit8b4114e52f69b9292efb282e49ed4d90699ceeb8 (patch)
treeb649e9ac1ab0666117c24c4d83cc6402e603d614 /src/vnet/tcp/tcp_newreno.c
parentfa20d4c5375c02f61e565b5fc57c490145bc0919 (diff)
tcp: cc algos handle cwnd on congestion signal
Type: refactor Change-Id: I15b10a22d0d0b83075a0eef5ef8c09cf76989866 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp_newreno.c')
-rw-r--r--src/vnet/tcp/tcp_newreno.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_newreno.c b/src/vnet/tcp/tcp_newreno.c
index 7e37efb1052..8b704a6ba04 100644
--- a/src/vnet/tcp/tcp_newreno.c
+++ b/src/vnet/tcp/tcp_newreno.c
@@ -19,6 +19,12 @@ static void
newreno_congestion (tcp_connection_t * tc)
{
tc->ssthresh = clib_max (tcp_flight_size (tc) / 2, 2 * tc->snd_mss);
+ tc->cwnd = tc->ssthresh;
+ /* Post retransmit update cwnd to ssthresh and account for the
+ * three segments that have left the network and should've been
+ * buffered at the receiver XXX */
+ if (!tcp_opts_sack_permitted (&tc->rcv_opts))
+ tc->cwnd += 3 * tc->snd_mss;
}
static void