diff options
| author |   Sergey Ivanushkin <sergey.ivanushkin@enea.com> | 2019-10-17 10:16:27 +0100 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2019-10-17 15:57:39 +0000 |
| commit | c30318da220953610820a2e7cd957da7046eaf4b (patch) | |
| tree | 68e3a9c3208e39af8cbfe6b643b79b4f579cbb46 /src/vnet/tcp/tcp_newreno.c | |
| parent | e0fd9ed11fd034d6b8c4195d2673271ba6825af2 (diff) | |
tcp: Init cwnd from ssthresh.
Set high ssthresh out of the box and make configurable
Type: fix
Signed-off-by: Sergey Ivanushkin <sergey.ivanushkin@enea.com>
Change-Id: Iba1549b4ee55e51468ad0b28ef3d26a85fa9cae0
Diffstat (limited to 'src/vnet/tcp/tcp_newreno.c')
| -rw-r--r-- | src/vnet/tcp/tcp_newreno.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp_newreno.c b/src/vnet/tcp/tcp_newreno.c index e9213a2e6d9..69dd2247132 100644 --- a/src/vnet/tcp/tcp_newreno.c +++ b/src/vnet/tcp/tcp_newreno.c @@ -15,6 +15,15 @@ #include <vnet/tcp/tcp.h> +typedef struct nwreno_cfg_ +{ + u32 ssthresh; +} newreno_cfg_t; + +static newreno_cfg_t newreno_cfg = { + .ssthresh = 0x7FFFFFFFU, +}; + static void newreno_congestion (tcp_connection_t * tc) { @@ -82,12 +91,33 @@ newreno_rcv_cong_ack (tcp_connection_t * tc, tcp_cc_ack_t ack_type, static void newreno_conn_init (tcp_connection_t * tc) { - tc->ssthresh = tc->snd_wnd; + tc->ssthresh = newreno_cfg.ssthresh; tc->cwnd = tcp_initial_cwnd (tc); } +static uword +newreno_unformat_config (unformat_input_t * input) +{ + u32 ssthresh = 0x7FFFFFFFU; + + if (!input) + return 0; + + unformat_skip_white_space (input); + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "ssthresh %u", &ssthresh)) + newreno_cfg.ssthresh = ssthresh; + else + return 0; + } + return 1; +} + const static tcp_cc_algorithm_t tcp_newreno = { .name = "newreno", + .unformat_cfg = newreno_unformat_config, .congestion = newreno_congestion, .loss = newreno_loss, .recovered = newreno_recovered, |