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authorFlorin Coras <fcoras@cisco.com>2022-03-14 14:23:39 -0700
committerDamjan Marion <dmarion@me.com>2022-03-15 16:27:02 +0000
commitc6a2f1f76f79b0a6a9bc0597e0e15c0e0429343b (patch)
tree3cc8259494387b67f893768881c76aa6b2abdbe0 /src
parent3a3668201734fddb614cba025fafc4578ddf5482 (diff)
tcp: update persist timer if data acked
Update persist timer if data sent during snd_wnd < snd_mss was acked. Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I5c75ff8ddc0e49750b2088237d32afa4eda99e7f
Diffstat (limited to 'src')
-rw-r--r--src/vnet/tcp/tcp_input.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 64b9334cbea..c15c328667b 100644
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -629,11 +629,15 @@ tcp_update_snd_wnd (tcp_connection_t * tc, u32 seq, u32 ack, u32 snd_wnd)
if (PREDICT_FALSE (tc->snd_wnd < tc->snd_mss))
{
- /* Set persist timer if not set and we just got 0 wnd */
- if (!tcp_timer_is_active (tc, TCP_TIMER_PERSIST)
- && !tcp_timer_is_active (tc, TCP_TIMER_RETRANSMIT))
+ if (!tcp_timer_is_active (tc, TCP_TIMER_RETRANSMIT))
{
tcp_worker_ctx_t *wrk = tcp_get_worker (tc->c_thread_index);
+
+ /* Set persist timer if we just got 0 wnd. If already set,
+ * update it because some data sent with snd_wnd < snd_mss was
+ * acked. */
+ if (tcp_timer_is_active (tc, TCP_TIMER_PERSIST))
+ tcp_persist_timer_reset (&wrk->timer_wheel, tc);
tcp_persist_timer_set (&wrk->timer_wheel, tc);
}
}