diff options
Diffstat (limited to 'freebsd/sys/netinet/sctp_cc_functions.c')
| -rw-r--r-- | freebsd/sys/netinet/sctp_cc_functions.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/freebsd/sys/netinet/sctp_cc_functions.c b/freebsd/sys/netinet/sctp_cc_functions.c index e8d6a354..1163cb91 100644 --- a/freebsd/sys/netinet/sctp_cc_functions.c +++ b/freebsd/sys/netinet/sctp_cc_functions.c @@ -133,6 +133,7 @@ sctp_cwnd_update_after_fr(struct sctp_tcb *stcb, t_ucwnd_sbw = 1; } } + /*- * CMT fast recovery code. Need to debug. ((sctp_cmt_on_off > 0) && * (net->fast_retran_loss_recovery == 0))) @@ -1121,6 +1122,7 @@ sctp_cwnd_update_after_ecn_echo_common(struct sctp_tcb *stcb, struct sctp_nets * if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_CWND_MONITOR_ENABLE) { sctp_log_cwnd(stcb, net, (net->cwnd - old_cwnd), SCTP_CWND_LOG_FROM_SAT); } + } SCTP_STAT_INCR(sctps_ecnereducedcwnd); } else { @@ -1320,7 +1322,7 @@ sctp_cwnd_update_rtcc_after_ecn_echo(struct sctp_tcb *stcb, struct sctp_nets *ne static -void +void sctp_cwnd_update_rtcc_tsn_acknowledged(struct sctp_nets *net, struct sctp_tmit_chunk *tp1) { @@ -1937,6 +1939,7 @@ measure_achieved_throughput(struct sctp_nets *net) net->cc_mod.htcp_ca.lasttime = now; return; } + net->cc_mod.htcp_ca.bytecount += net->net_ack; if ((net->cc_mod.htcp_ca.bytecount >= net->cwnd - (((net->cc_mod.htcp_ca.alpha >> 7) ? (net->cc_mod.htcp_ca.alpha >> 7) : 1) * net->mtu)) && (now - net->cc_mod.htcp_ca.lasttime >= net->cc_mod.htcp_ca.minRTT) && @@ -1973,6 +1976,7 @@ htcp_beta_update(struct htcp *ca, uint32_t minRTT, uint32_t maxRTT) return; } } + if (ca->modeswitch && minRTT > (uint32_t)MSEC_TO_TICKS(10) && maxRTT) { ca->beta = (minRTT << 7) / maxRTT; if (ca->beta < BETA_MIN) @@ -1996,6 +2000,7 @@ htcp_alpha_update(struct htcp *ca) diff -= hz; factor = 1 + (10 * diff + ((diff / 2) * (diff / 2) / hz)) / hz; } + if (use_rtt_scaling && minRTT) { uint32_t scale = (hz << 3) / (10 * minRTT); @@ -2005,6 +2010,7 @@ htcp_alpha_update(struct htcp *ca) if (!factor) factor = 1; } + ca->alpha = 2 * factor * ((1 << 7) - ca->beta); if (!ca->alpha) ca->alpha = ALPHA_BASE; @@ -2059,12 +2065,14 @@ htcp_cong_avoid(struct sctp_tcb *stcb, struct sctp_nets *net) sctp_log_cwnd(stcb, net, net->mtu, SCTP_CWND_LOG_FROM_SS); } + } else { net->cwnd += net->net_ack; if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_CWND_MONITOR_ENABLE) { sctp_log_cwnd(stcb, net, net->net_ack, SCTP_CWND_LOG_FROM_SS); } + } sctp_enforce_cwnd_limit(&stcb->asoc, net); } else { |