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Searched refs:snd_cwnd (Results 1 – 25 of 36) sorted by relevance

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/Linux-v5.4/net/ipv4/
Dtcp_yeah.c87 if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)) { in tcp_yeah_cong_avoid()
88 if (tp->snd_cwnd < tp->snd_cwnd_clamp) in tcp_yeah_cong_avoid()
89 tp->snd_cwnd++; in tcp_yeah_cong_avoid()
97 tcp_cong_avoid_ai(tp, tp->snd_cwnd, 1); in tcp_yeah_cong_avoid()
152 bw = tp->snd_cwnd; in tcp_yeah_cong_avoid()
160 tp->snd_cwnd > yeah->reno_count) { in tcp_yeah_cong_avoid()
162 tp->snd_cwnd >> TCP_YEAH_EPSILON); in tcp_yeah_cong_avoid()
164 tp->snd_cwnd -= reduction; in tcp_yeah_cong_avoid()
166 tp->snd_cwnd = max(tp->snd_cwnd, in tcp_yeah_cong_avoid()
169 tp->snd_ssthresh = tp->snd_cwnd; in tcp_yeah_cong_avoid()
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Dtcp_highspeed.c130 if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) { in hstcp_cong_avoid()
131 while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd && in hstcp_cong_avoid()
134 } else if (ca->ai && tp->snd_cwnd <= hstcp_aimd_vals[ca->ai-1].cwnd) { in hstcp_cong_avoid()
135 while (ca->ai && tp->snd_cwnd <= hstcp_aimd_vals[ca->ai-1].cwnd) in hstcp_cong_avoid()
140 if (tp->snd_cwnd < tp->snd_cwnd_clamp) { in hstcp_cong_avoid()
143 if (tp->snd_cwnd_cnt >= tp->snd_cwnd) { in hstcp_cong_avoid()
144 tp->snd_cwnd_cnt -= tp->snd_cwnd; in hstcp_cong_avoid()
145 tp->snd_cwnd++; in hstcp_cong_avoid()
157 return max(tp->snd_cwnd - ((tp->snd_cwnd * hstcp_aimd_vals[ca->ai].md) >> 8), 2U); in hstcp_ssthresh()
Dtcp_veno.c149 target_cwnd = (u64)tp->snd_cwnd * veno->basertt; in tcp_veno_cong_avoid()
153 veno->diff = (tp->snd_cwnd << V_PARAM_SHIFT) - target_cwnd; in tcp_veno_cong_avoid()
164 tcp_cong_avoid_ai(tp, tp->snd_cwnd, 1); in tcp_veno_cong_avoid()
169 if (tp->snd_cwnd_cnt >= tp->snd_cwnd) { in tcp_veno_cong_avoid()
171 tp->snd_cwnd < tp->snd_cwnd_clamp) { in tcp_veno_cong_avoid()
172 tp->snd_cwnd++; in tcp_veno_cong_avoid()
181 if (tp->snd_cwnd < 2) in tcp_veno_cong_avoid()
182 tp->snd_cwnd = 2; in tcp_veno_cong_avoid()
183 else if (tp->snd_cwnd > tp->snd_cwnd_clamp) in tcp_veno_cong_avoid()
184 tp->snd_cwnd = tp->snd_cwnd_clamp; in tcp_veno_cong_avoid()
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Dtcp_hybla.c57 tp->snd_cwnd = 2; in hybla_init()
65 tp->snd_cwnd = ca->rho; in hybla_init()
140 increment = ca->rho2_7ls / tp->snd_cwnd; in hybla_cong_avoid()
146 tp->snd_cwnd += increment >> 7; in hybla_cong_avoid()
151 tp->snd_cwnd++; in hybla_cong_avoid()
156 if (increment == 0 && odd == 0 && tp->snd_cwnd_cnt >= tp->snd_cwnd) { in hybla_cong_avoid()
157 tp->snd_cwnd++; in hybla_cong_avoid()
162 tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh); in hybla_cong_avoid()
164 tp->snd_cwnd = min_t(u32, tp->snd_cwnd, tp->snd_cwnd_clamp); in hybla_cong_avoid()
Dtcp_vegas.c162 return min(tp->snd_ssthresh, tp->snd_cwnd); in tcp_vegas_ssthresh()
220 target_cwnd = (u64)tp->snd_cwnd * vegas->baseRTT; in tcp_vegas_cong_avoid()
227 diff = tp->snd_cwnd * (rtt-vegas->baseRTT) / vegas->baseRTT; in tcp_vegas_cong_avoid()
241 tp->snd_cwnd = min(tp->snd_cwnd, (u32)target_cwnd+1); in tcp_vegas_cong_avoid()
257 tp->snd_cwnd--; in tcp_vegas_cong_avoid()
264 tp->snd_cwnd++; in tcp_vegas_cong_avoid()
272 if (tp->snd_cwnd < 2) in tcp_vegas_cong_avoid()
273 tp->snd_cwnd = 2; in tcp_vegas_cong_avoid()
274 else if (tp->snd_cwnd > tp->snd_cwnd_clamp) in tcp_vegas_cong_avoid()
275 tp->snd_cwnd = tp->snd_cwnd_clamp; in tcp_vegas_cong_avoid()
Dtcp_cdg.c164 tp->snd_cwnd); in tcp_cdg_hystart_update()
165 tp->snd_ssthresh = tp->snd_cwnd; in tcp_cdg_hystart_update()
183 tp->snd_cwnd); in tcp_cdg_hystart_update()
184 tp->snd_ssthresh = tp->snd_cwnd; in tcp_cdg_hystart_update()
255 ca->shadow_wnd = max(ca->shadow_wnd, tp->snd_cwnd); in tcp_cdg_backoff()
288 ca->shadow_wnd = min(ca->shadow_wnd, tp->snd_cwnd); in tcp_cdg_cong_avoid()
292 prior_snd_cwnd = tp->snd_cwnd; in tcp_cdg_cong_avoid()
295 incr = tp->snd_cwnd - prior_snd_cwnd; in tcp_cdg_cong_avoid()
334 return max(2U, (tp->snd_cwnd * min(1024U, backoff_beta)) >> 10); in tcp_cdg_ssthresh()
337 return tp->snd_cwnd; in tcp_cdg_ssthresh()
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Dtcp_nv.c201 cnt = tp->snd_cwnd << -ca->cwnd_growth_factor; in tcpnv_cong_avoid()
204 cnt = max(4U, tp->snd_cwnd >> ca->cwnd_growth_factor); in tcpnv_cong_avoid()
213 return max((tp->snd_cwnd * nv_loss_dec_factor) >> 10, 2U); in tcpnv_recalc_ssthresh()
261 if (ca->nv_catchup && tp->snd_cwnd >= nv_min_cwnd) { in tcpnv_acked()
375 if (tp->snd_cwnd > max_win) { in tcpnv_acked()
402 if (tp->snd_cwnd - max_win > 2) { in tcpnv_acked()
406 dec = max(2U, ((tp->snd_cwnd - max_win) * in tcpnv_acked()
408 tp->snd_cwnd -= dec; in tcpnv_acked()
410 tp->snd_cwnd = max_win; in tcpnv_acked()
415 } else if (tp->snd_cwnd <= max_win - nv_pad_buffer) { in tcpnv_acked()
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Dtcp_bic.c151 bictcp_update(ca, tp->snd_cwnd); in bictcp_cong_avoid()
168 if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) in bictcp_recalc_ssthresh()
169 ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) in bictcp_recalc_ssthresh()
172 ca->last_max_cwnd = tp->snd_cwnd; in bictcp_recalc_ssthresh()
174 if (tp->snd_cwnd <= low_window) in bictcp_recalc_ssthresh()
175 return max(tp->snd_cwnd >> 1U, 2U); in bictcp_recalc_ssthresh()
177 return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); in bictcp_recalc_ssthresh()
Dtcp_cong.c396 u32 cwnd = min(tp->snd_cwnd + acked, tp->snd_ssthresh); in tcp_slow_start()
398 acked -= cwnd - tp->snd_cwnd; in tcp_slow_start()
399 tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp); in tcp_slow_start()
413 tp->snd_cwnd++; in tcp_cong_avoid_ai()
421 tp->snd_cwnd += delta; in tcp_cong_avoid_ai()
423 tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_cwnd_clamp); in tcp_cong_avoid_ai()
448 tcp_cong_avoid_ai(tp, tp->snd_cwnd, acked); in tcp_reno_cong_avoid()
457 return max(tp->snd_cwnd >> 1U, 2U); in tcp_reno_ssthresh()
465 return max(tp->snd_cwnd, tp->prior_cwnd); in tcp_reno_undo_cwnd()
Dtcp_cubic.c350 bictcp_update(ca, tp->snd_cwnd, acked); in bictcp_cong_avoid()
362 if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) in bictcp_recalc_ssthresh()
363 ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) in bictcp_recalc_ssthresh()
366 ca->last_max_cwnd = tp->snd_cwnd; in bictcp_recalc_ssthresh()
368 return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); in bictcp_recalc_ssthresh()
399 tp->snd_cwnd); in hystart_update()
400 tp->snd_ssthresh = tp->snd_cwnd; in hystart_update()
420 tp->snd_cwnd); in hystart_update()
421 tp->snd_ssthresh = tp->snd_cwnd; in hystart_update()
454 tp->snd_cwnd >= hystart_low_window) in bictcp_acked()
Dtcp_scalable.c29 tcp_cong_avoid_ai(tp, min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT), in tcp_scalable_cong_avoid()
37 return max(tp->snd_cwnd - (tp->snd_cwnd>>TCP_SCALABLE_MD_SCALE), 2U); in tcp_scalable_ssthresh()
Dtcp_dctcp.c107 ca->loss_cwnd = tp->snd_cwnd; in dctcp_ssthresh()
108 return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U); in dctcp_ssthresh()
149 ca->loss_cwnd = tp->snd_cwnd; in dctcp_react_to_loss()
150 tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U); in dctcp_react_to_loss()
213 return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd); in dctcp_cwnd_undo()
Dtcp_illinois.c227 if (tp->snd_cwnd < win_thresh) { in update_params()
287 if (delta >= tp->snd_cwnd) { in tcp_illinois_cong_avoid()
288 tp->snd_cwnd = min(tp->snd_cwnd + delta / tp->snd_cwnd, in tcp_illinois_cong_avoid()
301 return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->beta) >> BETA_SHIFT), 2U); in tcp_illinois_ssthresh()
Dtcp_htcp.c127 if (ca->packetcount >= tp->snd_cwnd - (ca->alpha >> 7 ? : 1) && in measure_achieved_throughput()
228 return max((tp->snd_cwnd * ca->beta) >> 7, 2U); in htcp_recalc_ssthresh()
245 if ((tp->snd_cwnd_cnt * ca->alpha)>>7 >= tp->snd_cwnd) { in htcp_cong_avoid()
246 if (tp->snd_cwnd < tp->snd_cwnd_clamp) in htcp_cong_avoid()
247 tp->snd_cwnd++; in htcp_cong_avoid()
Dtcp_lp.c293 tp->snd_cwnd, lp->remote_hz, lp->owd_min, lp->owd_max, in tcp_lp_pkts_acked()
309 tp->snd_cwnd = 1U; in tcp_lp_pkts_acked()
314 tp->snd_cwnd = max(tp->snd_cwnd >> 1U, 1U); in tcp_lp_pkts_acked()
Dtcp_bbr.c277 bw = (u64)tp->snd_cwnd * BW_UNIT; in bbr_init_pacing_rate_from_rtt()
323 bbr->prior_cwnd = tp->snd_cwnd; /* this cwnd is good enough */ in bbr_save_cwnd()
325 bbr->prior_cwnd = max(bbr->prior_cwnd, tp->snd_cwnd); in bbr_save_cwnd()
482 u32 cwnd = tp->snd_cwnd; in bbr_set_cwnd_to_recover_or_restore()
520 u32 cwnd = tp->snd_cwnd, target_cwnd = 0; in bbr_set_cwnd()
544 tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp); /* apply global cap */ in bbr_set_cwnd()
546 tp->snd_cwnd = min(tp->snd_cwnd, bbr_cwnd_min_target); in bbr_set_cwnd()
857 extra_acked = min(extra_acked, tp->snd_cwnd); in bbr_update_ack_aggregation()
915 tp->snd_cwnd = max(tp->snd_cwnd, bbr->prior_cwnd); in bbr_check_probe_rtt_done()
1094 return tcp_sk(sk)->snd_cwnd; in bbr_undo_cwnd()
Dtcp_metrics.c390 if (val && (tp->snd_cwnd >> 1) > val) in tcp_update_metrics()
392 tp->snd_cwnd >> 1); in tcp_update_metrics()
396 if (tp->snd_cwnd > val) in tcp_update_metrics()
398 tp->snd_cwnd); in tcp_update_metrics()
405 max(tp->snd_cwnd >> 1, tp->snd_ssthresh)); in tcp_update_metrics()
408 tcp_metric_set(tm, TCP_METRIC_CWND, (val + tp->snd_cwnd) >> 1); in tcp_update_metrics()
Dtcp_output.c141 u32 cwnd = tp->snd_cwnd; in tcp_cwnd_restart()
150 tp->snd_cwnd = max(cwnd, restart_cwnd); in tcp_cwnd_restart()
794 tp->snd_cwnd > tcp_packets_in_flight(tp)) { in tcp_tsq_write()
1629 if (win_used < tp->snd_cwnd) { in tcp_cwnd_application_limited()
1631 tp->snd_cwnd = (tp->snd_cwnd + win_used) >> 1; in tcp_cwnd_application_limited()
1802 cwnd = tp->snd_cwnd; in tcp_cwnd_test()
1958 BUG_ON(tp->snd_cwnd <= in_flight); in tcp_tso_should_defer()
1963 cong_win = (tp->snd_cwnd - in_flight) * tp->mss_cache; in tcp_tso_should_defer()
1977 u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache); in tcp_tso_should_defer()
2105 tp->snd_cwnd < 11 || in tcp_mtu_probe()
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Dtcp_rate.c192 tcp_packets_in_flight(tp) < tp->snd_cwnd && in tcp_rate_check_app_limited()
Dtcp_input.c351 nr_segs = max_t(u32, TCP_INIT_CWND, tp->snd_cwnd); in tcp_sndbuf_expand()
815 if (tp->snd_cwnd < tp->snd_ssthresh / 2) in tcp_update_pacing_rate()
820 rate *= max(tp->snd_cwnd, tp->packets_out); in tcp_update_pacing_rate()
1999 tp->prior_cwnd = tp->snd_cwnd; in tcp_enter_loss()
2004 tp->snd_cwnd = tcp_packets_in_flight(tp) + 1; in tcp_enter_loss()
2326 tp->snd_cwnd, tcp_left_out(tp), in DBGUNDO()
2335 tp->snd_cwnd, tcp_left_out(tp), in DBGUNDO()
2360 tp->snd_cwnd = icsk->icsk_ca_ops->undo_cwnd(sk); in tcp_undo_cwnd_reduction()
2467 tp->prior_cwnd = tp->snd_cwnd; in tcp_init_cwnd_reduction()
2498 tp->snd_cwnd = tcp_packets_in_flight(tp) + sndcnt; in tcp_cwnd_reduction()
[all …]
/Linux-v5.4/include/trace/events/
Dtcp.h245 __field(__u32, snd_cwnd)
271 __entry->snd_cwnd = tp->snd_cwnd;
282 __entry->snd_cwnd, __entry->ssthresh, __entry->snd_wnd,
/Linux-v5.4/tools/testing/selftests/bpf/
Dtest_sock_fields.c113 tp->snd_cwnd, tp->srtt_us, tp->rtt_min, tp->snd_ssthresh, in print_tp()
232 srv_tp.snd_cwnd != 10 || in check_result()
240 cli_tp.snd_cwnd != 10 || in check_result()
/Linux-v5.4/tools/testing/selftests/bpf/progs/
Dtest_sock_fields_kern.c109 dst->snd_cwnd = src->snd_cwnd; in tpcpy()
/Linux-v5.4/tools/testing/selftests/bpf/verifier/
Dsock.c253 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, snd_cwnd)),
271 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, snd_cwnd)),
327 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, snd_cwnd)),
/Linux-v5.4/samples/bpf/
Dhbm_kern.h99 pkti->cwnd = tp->snd_cwnd; in get_tcp_info()

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