tcp: fix retransmit with no sacks

[vpp.git] / src / vnet / tcp / tcp_input.c

diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 15dae3d..08cea1e 100755 (executable)
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -1483,9 +1483,12 @@ tcp_cc_handle_event (tcp_connection_t * tc, tcp_rate_sample_t * rs,
       tc->rxt_delivered = clib_max (tc->rxt_delivered + tc->bytes_acked,
                                    tc->snd_rxt_bytes);
       if (is_dack)
-       tc->prr_delivered += 1;
+       tc->prr_delivered += clib_min (tc->snd_mss,
+                                      tc->snd_nxt - tc->snd_una);
       else
-       tc->prr_delivered += tc->bytes_acked - tc->snd_mss * tc->rcv_dupacks;
+       tc->prr_delivered += tc->bytes_acked - clib_min (tc->bytes_acked,
+                                                        tc->snd_mss *
+                                                        tc->rcv_dupacks);
 
       /* If partial ack, assume that the first un-acked segment was lost */
       if (tc->bytes_acked || tc->rcv_dupacks == TCP_DUPACK_THRESHOLD)