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authorFlorin Coras <fcoras@cisco.com>2019-09-12 18:36:44 -0700
committerJohn Lo <loj@cisco.com>2019-09-25 14:54:42 +0000
commit36ebcfffbc7ab0e83b4bb8dfaec16bf16cafb954 (patch)
treefe9803af08fd55cf1c9419d6e58f45394e155a7b /src/vnet/tcp/tcp_newreno.c
parent54c93cfc2556d9c6d2cf472f51d4c2866a556ef6 (diff)
tcp: use sacks for timer based recovery
Type: feature If available, reuse sack scoreboard in timer triggered retransmit to minimize spurious retransmits. Additional changes/refactoring: - limited transmit updates - add sacked rxt count to scoreboard - prr pacing of fast retransmits - startup pacing updates - changed loss window to flight + mss Change-Id: I057de6a9d6401698bd1031d5cf5cfbb62f2bdf61 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, 0 insertions, 6 deletions
diff --git a/src/vnet/tcp/tcp_newreno.c b/src/vnet/tcp/tcp_newreno.c
index 8b704a6ba04..e9213a2e6d9 100644
--- a/src/vnet/tcp/tcp_newreno.c
+++ b/src/vnet/tcp/tcp_newreno.c
@@ -20,17 +20,11 @@ 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
newreno_loss (tcp_connection_t * tc)
{
- tc->ssthresh = clib_max (tcp_flight_size (tc) / 2, 2 * tc->snd_mss);
tc->cwnd = tcp_loss_wnd (tc);
}