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authorFlorin Coras <fcoras@cisco.com>2017-03-30 02:54:28 -0700
committerDave Barach <openvpp@barachs.net>2017-04-02 14:02:30 +0000
commit3e350af5d3e9744a4529a28dd293b2d4601442f7 (patch)
treee4b489ddd509fc96382d49592cfc5bafc412a216 /src/vnet/tcp/tcp.c
parent799e26d5bdf6b74ab615644e0cd291de6e352989 (diff)
TCP cc/window management fixes and debugging
- added persist timer - update rcv_las whenever sending an ack - moved fifo size to its own cache line - improved session and builtin client debugging Change-Id: Ia649cf942cf0c061a713e8b67f0eb6974a6cd55b Signed-off-by: Florin Coras <fcoras@cisco.com> Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/tcp/tcp.c')
-rw-r--r--src/vnet/tcp/tcp.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index c3df5bc1d3e..b2a371e2cd8 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -578,7 +578,9 @@ tcp_session_send_space (transport_connection_t * trans_conn)
/* If we can't write at least a segment, don't try at all */
if (snd_space < tc->snd_mss)
return 0;
- return snd_space;
+
+ /* round down to mss multiple */
+ return snd_space - (snd_space % tc->snd_mss);
}
/* If in fast recovery, send 1 SMSS if wnd allows */
@@ -706,7 +708,7 @@ static timer_expiration_handler *timer_expiration_handlers[TCP_N_TIMERS] =
{
tcp_timer_retransmit_handler,
tcp_timer_delack_handler,
- 0,
+ tcp_timer_persist_handler,
tcp_timer_keep_handler,
tcp_timer_waitclose_handler,
tcp_timer_retransmit_syn_handler,