267 	struct tcpcb *tp = xtp;  in tcp_timer_delack()  local
269 	CURVNET_SET(tp->t_vnet);  in tcp_timer_delack()
271 	inp = tp->t_inpcb;  in tcp_timer_delack()
272 	KASSERT(inp != NULL, ("%s: tp %p tp->t_inpcb == NULL", __func__, tp));  in tcp_timer_delack()
274 	if (callout_pending(&tp->t_timers->tt_delack) ||  in tcp_timer_delack()
275 	    !callout_active(&tp->t_timers->tt_delack)) {  in tcp_timer_delack()
280 	callout_deactivate(&tp->t_timers->tt_delack);  in tcp_timer_delack()
286 	tp->t_flags |= TF_ACKNOW;  in tcp_timer_delack()
289 	(void) tp->t_fb->tfb_tcp_output(tp);  in tcp_timer_delack()
296 tcp_inpinfo_lock_del(struct inpcb *inp, struct tcpcb *tp)  in tcp_inpinfo_lock_del()  argument
298 	if (inp && tp != NULL)  in tcp_inpinfo_lock_del()
305 	struct tcpcb *tp = xtp;  in tcp_timer_2msl()  local
308 	CURVNET_SET(tp->t_vnet);  in tcp_timer_2msl()
312 	ostate = tp->t_state;  in tcp_timer_2msl()
314 	inp = tp->t_inpcb;  in tcp_timer_2msl()
315 	KASSERT(inp != NULL, ("%s: tp %p tp->t_inpcb == NULL", __func__, tp));  in tcp_timer_2msl()
317 	tcp_free_sackholes(tp);  in tcp_timer_2msl()
318 	if (callout_pending(&tp->t_timers->tt_2msl) ||  in tcp_timer_2msl()
319 	    !callout_active(&tp->t_timers->tt_2msl)) {  in tcp_timer_2msl()
320 		INP_WUNLOCK(tp->t_inpcb);  in tcp_timer_2msl()
324 	callout_deactivate(&tp->t_timers->tt_2msl);  in tcp_timer_2msl()
330 	KASSERT((tp->t_timers->tt_flags & TT_STOPPED) == 0,  in tcp_timer_2msl()
331 		("%s: tp %p tcpcb can't be stopped here", __func__, tp));  in tcp_timer_2msl()
350 	if (tcp_fast_finwait2_recycle && tp->t_state == TCPS_FIN_WAIT_2 &&  in tcp_timer_2msl()
351 	    tp->t_inpcb && tp->t_inpcb->inp_socket &&  in tcp_timer_2msl()
352 	    (tp->t_inpcb->inp_socket->so_rcv.sb_state & SBS_CANTRCVMORE)) {  in tcp_timer_2msl()
355 			tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_2msl()
359 		tp = tcp_close(tp);  in tcp_timer_2msl()
361 		tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_2msl()
364 		if (ticks - tp->t_rcvtime <= TP_MAXIDLE(tp)) {  in tcp_timer_2msl()
365 			callout_reset(&tp->t_timers->tt_2msl,  in tcp_timer_2msl()
366 				      TP_KEEPINTVL(tp), tcp_timer_2msl, tp);  in tcp_timer_2msl()
369 				tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_2msl()
373 			tp = tcp_close(tp);  in tcp_timer_2msl()
375 			tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_2msl()
381 	if (tp != NULL && (tp->t_inpcb->inp_socket->so_options & SO_DEBUG))  in tcp_timer_2msl()
382 		tcp_trace(TA_USER, ostate, tp, (void *)0, (struct tcphdr *)0,  in tcp_timer_2msl()
385 	TCP_PROBE2(debug__user, tp, PRU_SLOWTIMO);  in tcp_timer_2msl()
387 	if (tp != NULL)  in tcp_timer_2msl()
396 	struct tcpcb *tp = xtp;  in tcp_timer_keep()  local
400 	CURVNET_SET(tp->t_vnet);  in tcp_timer_keep()
404 	ostate = tp->t_state;  in tcp_timer_keep()
406 	inp = tp->t_inpcb;  in tcp_timer_keep()
407 	KASSERT(inp != NULL, ("%s: tp %p tp->t_inpcb == NULL", __func__, tp));  in tcp_timer_keep()
409 	if (callout_pending(&tp->t_timers->tt_keep) ||  in tcp_timer_keep()
410 	    !callout_active(&tp->t_timers->tt_keep)) {  in tcp_timer_keep()
415 	callout_deactivate(&tp->t_timers->tt_keep);  in tcp_timer_keep()
421 	KASSERT((tp->t_timers->tt_flags & TT_STOPPED) == 0,  in tcp_timer_keep()
422 		("%s: tp %p tcpcb can't be stopped here", __func__, tp));  in tcp_timer_keep()
430 	if (TCPS_HAVEESTABLISHED(tp->t_state)) {  in tcp_timer_keep()
433 		idletime = ticks - tp->t_rcvtime;  in tcp_timer_keep()
434 		if (idletime < TP_KEEPIDLE(tp)) {  in tcp_timer_keep()
435 			callout_reset(&tp->t_timers->tt_keep,  in tcp_timer_keep()
436 			    TP_KEEPIDLE(tp) - idletime, tcp_timer_keep, tp);  in tcp_timer_keep()
448 	if (tp->t_state < TCPS_ESTABLISHED)  in tcp_timer_keep()
452 	    tp->t_state <= TCPS_CLOSING) {  in tcp_timer_keep()
453 		if (ticks - tp->t_rcvtime >= TP_KEEPIDLE(tp) + TP_MAXIDLE(tp))  in tcp_timer_keep()
471 			tcp_respond(tp, t_template->tt_ipgen,  in tcp_timer_keep()
473 				    tp->rcv_nxt, tp->snd_una - 1, 0);  in tcp_timer_keep()
477 		callout_reset(&tp->t_timers->tt_keep, TP_KEEPINTVL(tp),  in tcp_timer_keep()
478 			      tcp_timer_keep, tp);  in tcp_timer_keep()
480 		callout_reset(&tp->t_timers->tt_keep, TP_KEEPIDLE(tp),  in tcp_timer_keep()
481 			      tcp_timer_keep, tp);  in tcp_timer_keep()
485 		tcp_trace(TA_USER, ostate, tp, (void *)0, (struct tcphdr *)0,  in tcp_timer_keep()
488 	TCP_PROBE2(debug__user, tp, PRU_SLOWTIMO);  in tcp_timer_keep()
496 		tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_keep()
500 	tp = tcp_drop(tp, ETIMEDOUT);  in tcp_timer_keep()
503 	if (tp != NULL && (tp->t_inpcb->inp_socket->so_options & SO_DEBUG))  in tcp_timer_keep()
504 		tcp_trace(TA_USER, ostate, tp, (void *)0, (struct tcphdr *)0,  in tcp_timer_keep()
507 	TCP_PROBE2(debug__user, tp, PRU_SLOWTIMO);  in tcp_timer_keep()
509 	tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_keep()
517 	struct tcpcb *tp = xtp;  in tcp_timer_persist()  local
520 	CURVNET_SET(tp->t_vnet);  in tcp_timer_persist()
524 	ostate = tp->t_state;  in tcp_timer_persist()
526 	inp = tp->t_inpcb;  in tcp_timer_persist()
527 	KASSERT(inp != NULL, ("%s: tp %p tp->t_inpcb == NULL", __func__, tp));  in tcp_timer_persist()
529 	if (callout_pending(&tp->t_timers->tt_persist) ||  in tcp_timer_persist()
530 	    !callout_active(&tp->t_timers->tt_persist)) {  in tcp_timer_persist()
535 	callout_deactivate(&tp->t_timers->tt_persist);  in tcp_timer_persist()
541 	KASSERT((tp->t_timers->tt_flags & TT_STOPPED) == 0,  in tcp_timer_persist()
542 		("%s: tp %p tcpcb can't be stopped here", __func__, tp));  in tcp_timer_persist()
555 	if (tp->t_rxtshift == TCP_MAXRXTSHIFT &&  in tcp_timer_persist()
556 	    (ticks - tp->t_rcvtime >= tcp_maxpersistidle ||  in tcp_timer_persist()
557 	     ticks - tp->t_rcvtime >= TCP_REXMTVAL(tp) * tcp_totbackoff)) {  in tcp_timer_persist()
560 			tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_persist()
564 		tp = tcp_drop(tp, ETIMEDOUT);  in tcp_timer_persist()
566 		tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_persist()
573 	if (tp->t_state > TCPS_CLOSE_WAIT &&  in tcp_timer_persist()
574 	    (ticks - tp->t_rcvtime) >= TCPTV_PERSMAX) {  in tcp_timer_persist()
577 			tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_persist()
581 		tp = tcp_drop(tp, ETIMEDOUT);  in tcp_timer_persist()
583 		tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_persist()
586 	tcp_setpersist(tp);  in tcp_timer_persist()
587 	tp->t_flags |= TF_FORCEDATA;  in tcp_timer_persist()
589 	(void) tp->t_fb->tfb_tcp_output(tp);  in tcp_timer_persist()
591 	tp->t_flags &= ~TF_FORCEDATA;  in tcp_timer_persist()
594 	if (tp != NULL && tp->t_inpcb->inp_socket->so_options & SO_DEBUG)  in tcp_timer_persist()
595 		tcp_trace(TA_USER, ostate, tp, NULL, NULL, PRU_SLOWTIMO);  in tcp_timer_persist()
597 	TCP_PROBE2(debug__user, tp, PRU_SLOWTIMO);  in tcp_timer_persist()
606 	struct tcpcb *tp = xtp;  in tcp_timer_rexmt()  local
607 	CURVNET_SET(tp->t_vnet);  in tcp_timer_rexmt()
615 	ostate = tp->t_state;  in tcp_timer_rexmt()
617 	inp = tp->t_inpcb;  in tcp_timer_rexmt()
618 	KASSERT(inp != NULL, ("%s: tp %p tp->t_inpcb == NULL", __func__, tp));  in tcp_timer_rexmt()
620 	if (callout_pending(&tp->t_timers->tt_rexmt) ||  in tcp_timer_rexmt()
621 	    !callout_active(&tp->t_timers->tt_rexmt)) {  in tcp_timer_rexmt()
626 	callout_deactivate(&tp->t_timers->tt_rexmt);  in tcp_timer_rexmt()
632 	KASSERT((tp->t_timers->tt_flags & TT_STOPPED) == 0,  in tcp_timer_rexmt()
633 		("%s: tp %p tcpcb can't be stopped here", __func__, tp));  in tcp_timer_rexmt()
634 	tcp_free_sackholes(tp);  in tcp_timer_rexmt()
635 	TCP_LOG_EVENT(tp, NULL, NULL, NULL, TCP_LOG_RTO, 0, 0, NULL, false);  in tcp_timer_rexmt()
636 	if (tp->t_fb->tfb_tcp_rexmit_tmr) {  in tcp_timer_rexmt()
638 		(*tp->t_fb->tfb_tcp_rexmit_tmr)(tp);  in tcp_timer_rexmt()
645 	if (++tp->t_rxtshift > TCP_MAXRXTSHIFT) {  in tcp_timer_rexmt()
646 		tp->t_rxtshift = TCP_MAXRXTSHIFT;  in tcp_timer_rexmt()
649 			tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_rexmt()
653 		tp = tcp_drop(tp, ETIMEDOUT);  in tcp_timer_rexmt()
655 		tcp_inpinfo_lock_del(inp, tp);  in tcp_timer_rexmt()
658 	if (tp->t_state == TCPS_SYN_SENT) {  in tcp_timer_rexmt()
663 		tp->snd_cwnd = 1;  in tcp_timer_rexmt()
664 	} else if (tp->t_rxtshift == 1) {  in tcp_timer_rexmt()
674 		tp->snd_cwnd_prev = tp->snd_cwnd;  in tcp_timer_rexmt()
675 		tp->snd_ssthresh_prev = tp->snd_ssthresh;  in tcp_timer_rexmt()
676 		tp->snd_recover_prev = tp->snd_recover;  in tcp_timer_rexmt()
677 		if (IN_FASTRECOVERY(tp->t_flags))  in tcp_timer_rexmt()
678 			tp->t_flags |= TF_WASFRECOVERY;  in tcp_timer_rexmt()
680 			tp->t_flags &= ~TF_WASFRECOVERY;  in tcp_timer_rexmt()
681 		if (IN_CONGRECOVERY(tp->t_flags))  in tcp_timer_rexmt()
682 			tp->t_flags |= TF_WASCRECOVERY;  in tcp_timer_rexmt()
684 			tp->t_flags &= ~TF_WASCRECOVERY;  in tcp_timer_rexmt()
685 		if ((tp->t_flags & TF_RCVD_TSTMP) == 0)  in tcp_timer_rexmt()
686 			tp->t_badrxtwin = ticks + (tp->t_srtt >> (TCP_RTT_SHIFT + 1));  in tcp_timer_rexmt()
691 		tp->t_flags |= TF_PREVVALID;  in tcp_timer_rexmt()
693 		tp->t_flags &= ~TF_PREVVALID;  in tcp_timer_rexmt()
695 	if ((tp->t_state == TCPS_SYN_SENT) ||  in tcp_timer_rexmt()
696 	    (tp->t_state == TCPS_SYN_RECEIVED))  in tcp_timer_rexmt()
697 		rexmt = tcp_rexmit_initial * tcp_backoff[tp->t_rxtshift];  in tcp_timer_rexmt()
699 		rexmt = TCP_REXMTVAL(tp) * tcp_backoff[tp->t_rxtshift];  in tcp_timer_rexmt()
700 	TCPT_RANGESET(tp->t_rxtcur, rexmt,  in tcp_timer_rexmt()
701 		      tp->t_rttmin, TCPTV_REXMTMAX);  in tcp_timer_rexmt()
711 	isipv6 = (tp->t_inpcb->inp_vflag & INP_IPV6) ? true : false;  in tcp_timer_rexmt()
718 	    ((tp->t_state == TCPS_ESTABLISHED) ||  in tcp_timer_rexmt()
719 	    (tp->t_state == TCPS_FIN_WAIT_1))) {  in tcp_timer_rexmt()
720 		if (tp->t_rxtshift == 1) {  in tcp_timer_rexmt()
729 			tp->t_blackhole_enter = 2;  in tcp_timer_rexmt()
730 			tp->t_blackhole_exit = tp->t_blackhole_enter;  in tcp_timer_rexmt()
733 				if (tp->t_maxseg > V_tcp_v6pmtud_blackhole_mss)  in tcp_timer_rexmt()
734 					tp->t_blackhole_exit += 2;  in tcp_timer_rexmt()
735 				if (tp->t_maxseg > V_tcp_v6mssdflt &&  in tcp_timer_rexmt()
737 					tp->t_blackhole_exit += 2;  in tcp_timer_rexmt()
741 				if (tp->t_maxseg > V_tcp_pmtud_blackhole_mss)  in tcp_timer_rexmt()
742 					tp->t_blackhole_exit += 2;  in tcp_timer_rexmt()
743 				if (tp->t_maxseg > V_tcp_mssdflt &&  in tcp_timer_rexmt()
745 					tp->t_blackhole_exit += 2;  in tcp_timer_rexmt()
749 		if (((tp->t_flags2 & (TF2_PLPMTU_PMTUD|TF2_PLPMTU_MAXSEGSNT)) ==  in tcp_timer_rexmt()
751 		    (tp->t_rxtshift >= tp->t_blackhole_enter &&  in tcp_timer_rexmt()
752 		    tp->t_rxtshift < tp->t_blackhole_exit &&  in tcp_timer_rexmt()
753 		    (tp->t_rxtshift - tp->t_blackhole_enter) % 2 == 0)) {  in tcp_timer_rexmt()
760 			if ((tp->t_flags2 & TF2_PLPMTU_BLACKHOLE) == 0) {  in tcp_timer_rexmt()
762 				tp->t_flags2 |= TF2_PLPMTU_BLACKHOLE;  in tcp_timer_rexmt()
764 				tp->t_pmtud_saved_maxseg = tp->t_maxseg;  in tcp_timer_rexmt()
773 			    tp->t_maxseg > V_tcp_v6pmtud_blackhole_mss &&  in tcp_timer_rexmt()
776 				tp->t_maxseg = V_tcp_v6pmtud_blackhole_mss;  in tcp_timer_rexmt()
780 				tp->t_maxseg = V_tcp_v6mssdflt;  in tcp_timer_rexmt()
785 				tp->t_flags2 &= ~TF2_PLPMTU_PMTUD;  in tcp_timer_rexmt()
793 			if (tp->t_maxseg > V_tcp_pmtud_blackhole_mss &&  in tcp_timer_rexmt()
796 				tp->t_maxseg = V_tcp_pmtud_blackhole_mss;  in tcp_timer_rexmt()
800 				tp->t_maxseg = V_tcp_mssdflt;  in tcp_timer_rexmt()
805 				tp->t_flags2 &= ~TF2_PLPMTU_PMTUD;  in tcp_timer_rexmt()
813 			if (CC_ALGO(tp)->conn_init != NULL)  in tcp_timer_rexmt()
814 				CC_ALGO(tp)->conn_init(tp->ccv);  in tcp_timer_rexmt()
822 			if ((tp->t_flags2 & TF2_PLPMTU_BLACKHOLE) &&  in tcp_timer_rexmt()
823 			    (tp->t_rxtshift >= tp->t_blackhole_exit)) {  in tcp_timer_rexmt()
824 				tp->t_flags2 |= TF2_PLPMTU_PMTUD;  in tcp_timer_rexmt()
825 				tp->t_flags2 &= ~TF2_PLPMTU_BLACKHOLE;  in tcp_timer_rexmt()
826 				tp->t_maxseg = tp->t_pmtud_saved_maxseg;  in tcp_timer_rexmt()
832 				if (CC_ALGO(tp)->conn_init != NULL)  in tcp_timer_rexmt()
833 					CC_ALGO(tp)->conn_init(tp->ccv);  in tcp_timer_rexmt()
845 	if (tcp_rexmit_drop_options && (tp->t_state == TCPS_SYN_SENT) &&  in tcp_timer_rexmt()
846 	    (tp->t_rxtshift == 3))  in tcp_timer_rexmt()
847 		tp->t_flags &= ~(TF_REQ_SCALE|TF_REQ_TSTMP|TF_SACK_PERMIT);  in tcp_timer_rexmt()
852 	if (tp->t_rxtshift > TCP_RTT_INVALIDATE) {  in tcp_timer_rexmt()
854 		if ((tp->t_inpcb->inp_vflag & INP_IPV6) != 0)  in tcp_timer_rexmt()
855 			in6_losing(tp->t_inpcb);  in tcp_timer_rexmt()
858 			in_losing(tp->t_inpcb);  in tcp_timer_rexmt()
860 	tp->snd_nxt = tp->snd_una;  in tcp_timer_rexmt()
861 	tp->snd_recover = tp->snd_max;  in tcp_timer_rexmt()
865 	tp->t_flags |= TF_ACKNOW;  in tcp_timer_rexmt()
869 	tp->t_rtttime = 0;  in tcp_timer_rexmt()
871 	cc_cong_signal(tp, NULL, CC_RTO);  in tcp_timer_rexmt()
873 	(void) tp->t_fb->tfb_tcp_output(tp);  in tcp_timer_rexmt()
876 	if (tp != NULL && (tp->t_inpcb->inp_socket->so_options & SO_DEBUG))  in tcp_timer_rexmt()
877 		tcp_trace(TA_USER, ostate, tp, (void *)0, (struct tcphdr *)0,  in tcp_timer_rexmt()
880 	TCP_PROBE2(debug__user, tp, PRU_SLOWTIMO);  in tcp_timer_rexmt()
887 tcp_timer_activate(struct tcpcb *tp, uint32_t timer_type, u_int delta)  in tcp_timer_activate()  argument
891 	struct inpcb *inp = tp->t_inpcb;  in tcp_timer_activate()
895 	if (tp->t_flags & TF_TOE)  in tcp_timer_activate()
899 	if (tp->t_timers->tt_flags & TT_STOPPED)  in tcp_timer_activate()
904 			t_callout = &tp->t_timers->tt_delack;  in tcp_timer_activate()
908 			t_callout = &tp->t_timers->tt_rexmt;  in tcp_timer_activate()
912 			t_callout = &tp->t_timers->tt_persist;  in tcp_timer_activate()
916 			t_callout = &tp->t_timers->tt_keep;  in tcp_timer_activate()
920 			t_callout = &tp->t_timers->tt_2msl;  in tcp_timer_activate()
924 			if (tp->t_fb->tfb_tcp_timer_activate) {  in tcp_timer_activate()
925 				tp->t_fb->tfb_tcp_timer_activate(tp, timer_type, delta);  in tcp_timer_activate()
928 			panic("tp %p bad timer_type %#x", tp, timer_type);  in tcp_timer_activate()
933 		callout_reset_on(t_callout, delta, f_callout, tp, cpu);  in tcp_timer_activate()
938 tcp_timer_active(struct tcpcb *tp, uint32_t timer_type)  in tcp_timer_active()  argument
944 			t_callout = &tp->t_timers->tt_delack;  in tcp_timer_active()
947 			t_callout = &tp->t_timers->tt_rexmt;  in tcp_timer_active()
950 			t_callout = &tp->t_timers->tt_persist;  in tcp_timer_active()
953 			t_callout = &tp->t_timers->tt_keep;  in tcp_timer_active()
956 			t_callout = &tp->t_timers->tt_2msl;  in tcp_timer_active()
959 			if (tp->t_fb->tfb_tcp_timer_active) {  in tcp_timer_active()
960 				return(tp->t_fb->tfb_tcp_timer_active(tp, timer_type));  in tcp_timer_active()
962 			panic("tp %p bad timer_type %#x", tp, timer_type);  in tcp_timer_active()
976 tcp_timer_suspend(struct tcpcb *tp, uint32_t timer_type)  in tcp_timer_suspend()  argument
984 			t_callout = &tp->t_timers->tt_delack;  in tcp_timer_suspend()
988 			t_callout = &tp->t_timers->tt_rexmt;  in tcp_timer_suspend()
992 			t_callout = &tp->t_timers->tt_persist;  in tcp_timer_suspend()
996 			t_callout = &tp->t_timers->tt_keep;  in tcp_timer_suspend()
1000 			t_callout = &tp->t_timers->tt_2msl;  in tcp_timer_suspend()
1003 			panic("tp:%p bad timer_type 0x%x", tp, timer_type);  in tcp_timer_suspend()
1005 	tp->t_timers->tt_flags |= t_flags;  in tcp_timer_suspend()
1010 tcp_timers_unsuspend(struct tcpcb *tp, uint32_t timer_type)  in tcp_timers_unsuspend()  argument
1014 			if (tp->t_timers->tt_flags & TT_DELACK_SUS) {  in tcp_timers_unsuspend()
1015 				tp->t_timers->tt_flags &= ~TT_DELACK_SUS;  in tcp_timers_unsuspend()
1016 				if (tp->t_flags & TF_DELACK) {  in tcp_timers_unsuspend()
1018 					tp->t_flags &= ~TF_DELACK;  in tcp_timers_unsuspend()
1019 					tcp_timer_activate(tp, TT_DELACK,  in tcp_timers_unsuspend()
1025 			if (tp->t_timers->tt_flags & TT_REXMT_SUS) {  in tcp_timers_unsuspend()
1026 				tp->t_timers->tt_flags &= ~TT_REXMT_SUS;  in tcp_timers_unsuspend()
1027 				if (SEQ_GT(tp->snd_max, tp->snd_una) &&  in tcp_timers_unsuspend()
1028 				    (tcp_timer_active((tp), TT_PERSIST) == 0) &&  in tcp_timers_unsuspend()
1029 				    tp->snd_wnd) {  in tcp_timers_unsuspend()
1031 					tcp_timer_activate(tp, TT_REXMT,  in tcp_timers_unsuspend()
1032                                             tp->t_rxtcur);  in tcp_timers_unsuspend()
1037 			if (tp->t_timers->tt_flags & TT_PERSIST_SUS) {  in tcp_timers_unsuspend()
1038 				tp->t_timers->tt_flags &= ~TT_PERSIST_SUS;  in tcp_timers_unsuspend()
1039 				if (tp->snd_wnd == 0) {  in tcp_timers_unsuspend()
1041 					tp->t_rxtshift = 0;  in tcp_timers_unsuspend()
1042 					tcp_setpersist(tp);  in tcp_timers_unsuspend()
1047 			if (tp->t_timers->tt_flags & TT_KEEP_SUS) {  in tcp_timers_unsuspend()
1048 				tp->t_timers->tt_flags &= ~TT_KEEP_SUS;  in tcp_timers_unsuspend()
1049 				tcp_timer_activate(tp, TT_KEEP,  in tcp_timers_unsuspend()
1050 					    TCPS_HAVEESTABLISHED(tp->t_state) ?  in tcp_timers_unsuspend()
1051 					    TP_KEEPIDLE(tp) : TP_KEEPINIT(tp));  in tcp_timers_unsuspend()
1055 			if (tp->t_timers->tt_flags &= TT_2MSL_SUS) {  in tcp_timers_unsuspend()
1056 				tp->t_timers->tt_flags &= ~TT_2MSL_SUS;  in tcp_timers_unsuspend()
1057 				if ((tp->t_state == TCPS_FIN_WAIT_2) &&  in tcp_timers_unsuspend()
1058 				    ((tp->t_inpcb->inp_socket == NULL) ||  in tcp_timers_unsuspend()
1059 				     (tp->t_inpcb->inp_socket->so_rcv.sb_state & SBS_CANTRCVMORE))) {  in tcp_timers_unsuspend()
1061 					tcp_timer_activate(tp, TT_2MSL,  in tcp_timers_unsuspend()
1063 					    tcp_finwait2_timeout : TP_MAXIDLE(tp));  in tcp_timers_unsuspend()
1068 			panic("tp:%p bad timer_type 0x%x", tp, timer_type);  in tcp_timers_unsuspend()
1073 tcp_timer_stop(struct tcpcb *tp, uint32_t timer_type)  in tcp_timer_stop()  argument
1077 	tp->t_timers->tt_flags |= TT_STOPPED;  in tcp_timer_stop()
1080 			t_callout = &tp->t_timers->tt_delack;  in tcp_timer_stop()
1083 			t_callout = &tp->t_timers->tt_rexmt;  in tcp_timer_stop()
1086 			t_callout = &tp->t_timers->tt_persist;  in tcp_timer_stop()
1089 			t_callout = &tp->t_timers->tt_keep;  in tcp_timer_stop()
1092 			t_callout = &tp->t_timers->tt_2msl;  in tcp_timer_stop()
1095 			if (tp->t_fb->tfb_tcp_timer_stop) {  in tcp_timer_stop()
1100 				tp->t_fb->tfb_tcp_timer_stop(tp, timer_type);  in tcp_timer_stop()
1103 			panic("tp %p bad timer_type %#x", tp, timer_type);  in tcp_timer_stop()
1112 		tp->t_timers->tt_draincnt++;  in tcp_timer_stop()