92 static void	chd_ack_received(struct cc_var *ccv, ccsignal_t ack_type);
93 static void	chd_cb_destroy(struct cc_var *ccv);
94 static int	chd_cb_init(struct cc_var *ccv, void *ptr);
95 static void	chd_cong_signal(struct cc_var *ccv, ccsignal_t signal_type);
96 static void	chd_conn_init(struct cc_var *ccv);
147 chd_window_decrease(struct cc_var *ccv)  in chd_window_decrease()  argument
150 	uint32_t mss = tcp_fixed_maxseg(ccv->tp);  in chd_window_decrease()
152 	win = min(CCV(ccv, snd_wnd), CCV(ccv, snd_cwnd)) / mss;  in chd_window_decrease()
154 	CCV(ccv, snd_ssthresh) = max(win, 2) * mss;  in chd_window_decrease()
190 chd_window_increase(struct cc_var *ccv, int new_measurement)  in chd_window_increase()  argument
194 	uint32_t mss = tcp_fixed_maxseg(ccv->tp);  in chd_window_increase()
196 	chd_data = ccv->cc_data;  in chd_window_increase()
199 	if (CCV(ccv, snd_cwnd) <= CCV(ccv, snd_ssthresh)) {  in chd_window_increase()
203 			if (CCV(ccv, snd_nxt) == CCV(ccv, snd_max)) {  in chd_window_increase()
205 				incr = min(ccv->bytes_this_ack,  in chd_window_increase()
209 				incr = min(ccv->bytes_this_ack, mss);  in chd_window_increase()
216 			if (ccv->flags & CCF_ABC_SENTAWND) {  in chd_window_increase()
217 				ccv->flags &= ~CCF_ABC_SENTAWND;  in chd_window_increase()
227 		    TCP_MAXWIN << CCV(ccv, snd_scale));  in chd_window_increase()
230 	CCV(ccv,snd_cwnd) = min(CCV(ccv, snd_cwnd) + incr,  in chd_window_increase()
231 	    TCP_MAXWIN << CCV(ccv, snd_scale));  in chd_window_increase()
240 chd_ack_received(struct cc_var *ccv, ccsignal_t ack_type)  in chd_ack_received()  argument
246 	e_t = khelp_get_osd(&CCV(ccv, t_osd), ertt_id);  in chd_ack_received()
247 	chd_data = ccv->cc_data;  in chd_ack_received()
261 		if (rtt && e_t->minrtt && !IN_RECOVERY(CCV(ccv, t_flags))) {  in chd_ack_received()
288 			chd_data->shadow_w = max(CCV(ccv, snd_cwnd),  in chd_ack_received()
303 		chd_cong_signal(ccv, CC_CHD_DELAY);  in chd_ack_received()
306 		chd_window_increase(ccv, new_measurement);  in chd_ack_received()
310 chd_cb_destroy(struct cc_var *ccv)  in chd_cb_destroy()  argument
312 	free(ccv->cc_data, M_CC_MEM);  in chd_cb_destroy()
322 chd_cb_init(struct cc_var *ccv, void *ptr)  in chd_cb_init()  argument
326 	INP_WLOCK_ASSERT(tptoinpcb(ccv->tp));  in chd_cb_init()
335 	ccv->cc_data = chd_data;  in chd_cb_init()
341 chd_cong_signal(struct cc_var *ccv, ccsignal_t signal_type)  in chd_cong_signal()  argument
347 	e_t = khelp_get_osd(&CCV(ccv, t_osd), ertt_id);  in chd_cong_signal()
348 	chd_data = ccv->cc_data;  in chd_cong_signal()
353 		chd_window_decrease(ccv); /* Set new ssthresh. */  in chd_cong_signal()
354 		CCV(ccv, snd_cwnd) = CCV(ccv, snd_ssthresh);  in chd_cong_signal()
355 		CCV(ccv, snd_recover) = CCV(ccv, snd_max);  in chd_cong_signal()
356 		ENTER_CONGRECOVERY(CCV(ccv, t_flags));  in chd_cong_signal()
368 		if (!IN_RECOVERY(CCV(ccv, t_flags)) && qdly > V_chd_qthresh) {  in chd_cong_signal()
370 				CCV(ccv, snd_cwnd) = max(CCV(ccv, snd_cwnd),  in chd_cong_signal()
373 			chd_window_decrease(ccv);  in chd_cong_signal()
379 			CCV(ccv, snd_ssthresh) = CCV(ccv, snd_cwnd);  in chd_cong_signal()
380 			CCV(ccv, snd_recover) = CCV(ccv, snd_max);  in chd_cong_signal()
384 			uint32_t mss = tcp_fixed_maxseg(ccv->tp);  in chd_cong_signal()
388 		ENTER_FASTRECOVERY(CCV(ccv, t_flags));  in chd_cong_signal()
392 		newreno_cc_cong_signal(ccv, signal_type);  in chd_cong_signal()
398 chd_conn_init(struct cc_var *ccv)  in chd_conn_init()  argument
402 	chd_data = ccv->cc_data;  in chd_conn_init()
410 	chd_data->shadow_w = CCV(ccv, snd_cwnd);  in chd_conn_init()