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Searched refs:snd_cwnd (Results 1 - 25 of 64) sorted by relevance

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/kernel/linux/linux-5.10/net/ipv4/
H A Dtcp_yeah.c74 tcp_cong_avoid_ai(tp, min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT), in tcp_yeah_cong_avoid()
78 tcp_cong_avoid_ai(tp, tp->snd_cwnd, acked); in tcp_yeah_cong_avoid()
133 bw = tp->snd_cwnd; in tcp_yeah_cong_avoid()
141 tp->snd_cwnd > yeah->reno_count) { in tcp_yeah_cong_avoid()
143 tp->snd_cwnd >> TCP_YEAH_EPSILON); in tcp_yeah_cong_avoid()
145 tp->snd_cwnd -= reduction; in tcp_yeah_cong_avoid()
147 tp->snd_cwnd = max(tp->snd_cwnd, in tcp_yeah_cong_avoid()
150 tp->snd_ssthresh = tp->snd_cwnd; in tcp_yeah_cong_avoid()
154 yeah->reno_count = max(tp->snd_cwnd>> in tcp_yeah_cong_avoid()
[all...]
H A 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()
167 tcp_cong_avoid_ai(tp, tp->snd_cwnd, acked); in tcp_veno_cong_avoid()
172 if (tp->snd_cwnd_cnt >= tp->snd_cwnd) { in tcp_veno_cong_avoid()
174 tp->snd_cwnd < tp->snd_cwnd_clamp) { in tcp_veno_cong_avoid()
175 tp->snd_cwnd++; in tcp_veno_cong_avoid()
184 if (tp->snd_cwnd < 2) in tcp_veno_cong_avoid()
185 tp->snd_cwnd = 2; in tcp_veno_cong_avoid()
186 else if (tp->snd_cwnd > tp->snd_cwnd_clamp) in tcp_veno_cong_avoid()
187 tp->snd_cwnd in tcp_veno_cong_avoid()
[all...]
H A Dtcp_highspeed.c127 * snd_cwnd <= in hstcp_cong_avoid()
130 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 in hstcp_ssthresh()
[all...]
H A 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 in hybla_cong_avoid()
[all...]
H A 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 > t in tcp_vegas_cong_avoid()
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H A Dtcp_bic.c22 * max_cwnd = snd_cwnd * beta
52 u32 last_max_cwnd; /* last maximum snd_cwnd */
53 u32 last_cwnd; /* the last snd_cwnd */
153 bictcp_update(ca, tp->snd_cwnd); in bictcp_cong_avoid()
169 if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) in bictcp_recalc_ssthresh()
170 ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) in bictcp_recalc_ssthresh()
173 ca->last_max_cwnd = tp->snd_cwnd; in bictcp_recalc_ssthresh()
175 if (tp->snd_cwnd <= low_window) in bictcp_recalc_ssthresh()
176 return max(tp->snd_cwnd >> 1U, 2U); in bictcp_recalc_ssthresh()
178 return max((tp->snd_cwnd * bet in bictcp_recalc_ssthresh()
[all...]
H A 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()
[all...]
H A 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 < in tcpnv_acked()
[all...]
H A Dtcp_scalable.c30 tcp_cong_avoid_ai(tp, min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT), in tcp_scalable_cong_avoid()
38 return max(tp->snd_cwnd - (tp->snd_cwnd>>TCP_SCALABLE_MD_SCALE), 2U); in tcp_scalable_ssthresh()
H A Dtcp_cubic.c33 * max_cwnd = snd_cwnd * beta
86 u32 last_max_cwnd; /* last maximum snd_cwnd */
87 u32 last_cwnd; /* the last snd_cwnd */
344 bictcp_update(ca, tp->snd_cwnd, acked); in bictcp_cong_avoid()
356 if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) in bictcp_recalc_ssthresh()
357 ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) in bictcp_recalc_ssthresh()
360 ca->last_max_cwnd = tp->snd_cwnd; in bictcp_recalc_ssthresh()
362 return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); in bictcp_recalc_ssthresh()
423 ca->delay_min, hystart_ack_delay(sk), tp->snd_cwnd); in hystart_update()
428 tp->snd_cwnd); in hystart_update()
[all...]
H A 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()
H A Dtcp_cong.c398 u32 cwnd = min(tp->snd_cwnd + acked, tp->snd_ssthresh); in tcp_slow_start()
400 acked -= cwnd - tp->snd_cwnd; in tcp_slow_start()
401 tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp); in tcp_slow_start()
407 /* In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd (or alternative w),
415 tp->snd_cwnd++; in tcp_cong_avoid_ai()
423 tp->snd_cwnd += delta; in tcp_cong_avoid_ai()
425 tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_cwnd_clamp); in tcp_cong_avoid_ai()
450 tcp_cong_avoid_ai(tp, tp->snd_cwnd, acke in tcp_reno_cong_avoid()
[all...]
H A Dtcp_illinois.c227 if (tp->snd_cwnd < win_thresh) { in update_params()
284 * tp->snd_cwnd += alpha/tp->snd_cwnd in tcp_illinois_cong_avoid()
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()
H A Dtcp_bbr.c277 bw = (u64)tp->snd_cwnd * BW_UNIT; in bbr_init_pacing_rate_from_rtt()
324 bbr->prior_cwnd = tp->snd_cwnd; /* this cwnd is good enough */ in bbr_save_cwnd()
326 bbr->prior_cwnd = max(bbr->prior_cwnd, tp->snd_cwnd); in bbr_save_cwnd()
483 u32 cwnd = tp->snd_cwnd; in bbr_set_cwnd_to_recover_or_restore()
521 u32 cwnd = tp->snd_cwnd, target_cwnd = 0; in bbr_set_cwnd()
545 tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp); /* apply global cap */ in bbr_set_cwnd()
547 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 in bbr_check_probe_rtt_done()
[all...]
H A Dtcp_lp.c293 tp->snd_cwnd, lp->remote_hz, lp->owd_min, lp->owd_max, in tcp_lp_pkts_acked()
307 * drop snd_cwnd into 1 */ in tcp_lp_pkts_acked()
309 tp->snd_cwnd = 1U; in tcp_lp_pkts_acked()
312 * cut snd_cwnd into half */ in tcp_lp_pkts_acked()
314 tp->snd_cwnd = max(tp->snd_cwnd >> 1U, 1U); in tcp_lp_pkts_acked()
H A 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()
243 * In theory this is tp->snd_cwnd += alpha / tp->snd_cwnd in htcp_cong_avoid()
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()
/kernel/linux/linux-5.10/tools/testing/selftests/bpf/
H A Dbpf_tcp_helpers.h62 __u32 snd_cwnd; member
72 is_cwnd_limited:1,/* forward progress limited by snd_cwnd? */
190 __u32 cwnd = min(tp->snd_cwnd + acked, tp->snd_ssthresh); in tcp_slow_start()
192 acked -= cwnd - tp->snd_cwnd; in tcp_slow_start()
193 tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp); in tcp_slow_start()
200 return tp->snd_cwnd < tp->snd_ssthresh; in tcp_in_slow_start()
209 return tp->snd_cwnd < 2 * tp->max_packets_out; in tcp_is_cwnd_limited()
219 tp->snd_cwnd++; in tcp_cong_avoid_ai()
227 tp->snd_cwnd += delta; in tcp_cong_avoid_ai()
229 tp->snd_cwnd in tcp_cong_avoid_ai()
[all...]
/kernel/linux/linux-5.10/tools/testing/selftests/bpf/progs/
H A Dbpf_dctcp.c79 ca->loss_cwnd = tp->snd_cwnd; in BPF_PROG()
80 return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U); in BPF_PROG()
118 ca->loss_cwnd = tp->snd_cwnd; in dctcp_react_to_loss()
119 tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U); in dctcp_react_to_loss()
194 return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd); in BPF_PROG()
212 tcp_cong_avoid_ai(tp, tp->snd_cwnd, acked); in BPF_PROG()
H A Dbpf_cubic.c27 * max_cwnd = snd_cwnd * beta
75 __u32 last_max_cwnd; /* last maximum snd_cwnd */
76 __u32 last_cwnd; /* the last snd_cwnd */
402 bictcp_update(ca, tp->snd_cwnd, acked); in BPF_STRUCT_OPS()
414 if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) in BPF_STRUCT_OPS()
415 ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) in BPF_STRUCT_OPS()
418 ca->last_max_cwnd = tp->snd_cwnd; in BPF_STRUCT_OPS()
420 return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); in BPF_STRUCT_OPS()
478 tp->snd_ssthresh = tp->snd_cwnd; in hystart_update()
493 tp->snd_ssthresh = tp->snd_cwnd; in hystart_update()
[all...]
/kernel/linux/linux-6.6/tools/testing/selftests/bpf/progs/
H A Dbpf_dctcp.c113 ca->loss_cwnd = tp->snd_cwnd; in BPF_PROG()
114 return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U); in BPF_PROG()
152 ca->loss_cwnd = tp->snd_cwnd; in dctcp_react_to_loss()
153 tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U); in dctcp_react_to_loss()
228 return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd); in BPF_PROG()
H A Dbpf_cubic.c27 * max_cwnd = snd_cwnd * beta
75 __u32 last_max_cwnd; /* last maximum snd_cwnd */
76 __u32 last_cwnd; /* the last snd_cwnd */
396 bictcp_update(ca, tp->snd_cwnd, acked); in BPF_STRUCT_OPS()
408 if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) in BPF_STRUCT_OPS()
409 ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) in BPF_STRUCT_OPS()
412 ca->last_max_cwnd = tp->snd_cwnd; in BPF_STRUCT_OPS()
414 return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); in BPF_STRUCT_OPS()
472 tp->snd_ssthresh = tp->snd_cwnd; in hystart_update()
487 tp->snd_ssthresh = tp->snd_cwnd; in hystart_update()
[all...]
H A Dtcp_ca_write_sk_pacing.c46 ((tp->snd_cwnd * tp->mss_cache * USEC_PER_SEC) << 3) / in BPF_PROG()
61 return tcp_sk(sk)->snd_cwnd; in BPF_PROG()
H A Dtcp_ca_incompl_cong_ops.c24 return tcp_sk(sk)->snd_cwnd; in BPF_PROG()
/kernel/linux/linux-5.10/include/trace/events/
H A Dtcp.h245 __field(__u32, snd_cwnd)
271 __entry->snd_cwnd = tp->snd_cwnd;
279 TP_printk("src=%pISpc dest=%pISpc mark=%#x data_len=%d snd_nxt=%#x snd_una=%#x snd_cwnd=%u ssthresh=%u snd_wnd=%u srtt=%u rcv_wnd=%u sock_cookie=%llx",
282 __entry->snd_cwnd, __entry->ssthresh, __entry->snd_wnd,
/kernel/linux/linux-6.6/tools/testing/selftests/bpf/
H A Dbpf_tcp_helpers.h72 __u32 snd_cwnd; member
82 is_cwnd_limited:1,/* forward progress limited by snd_cwnd? */
202 return tp->snd_cwnd < tp->snd_ssthresh; in tcp_in_slow_start()
211 return tp->snd_cwnd < 2 * tp->max_packets_out; in tcp_is_cwnd_limited()

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