*/
#include <vnet/tcp/tcp.h>
+#include <vnet/tcp/tcp_inlines.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)
{
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);
}
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,