1546 	TCP_LOG_EVENT(tp, th, &so->so_rcv, &so->so_snd, TCP_LOG_IN, 0,  in tcp_do_segment()
1830 				sbdrop(&so->so_snd, acked);  in tcp_do_segment()
1868 				if (sbavail(&so->so_snd) == 0)  in tcp_do_segment()
1884 				    (sbavail(&so->so_snd) >=  in tcp_do_segment()
2806 					avail = sbavail(&so->so_snd);  in tcp_do_segment()
2992 		    acked == sbavail(&so->so_snd)) ||  in tcp_do_segment()
2993 		    acked > sbavail(&so->so_snd))  in tcp_do_segment()
3026 		if (acked > sbavail(&so->so_snd)) {  in tcp_do_segment()
3027 			if (tp->snd_wnd >= sbavail(&so->so_snd))  in tcp_do_segment()
3028 				tp->snd_wnd -= sbavail(&so->so_snd);  in tcp_do_segment()
3031 			mfree = sbcut_locked(&so->so_snd,  in tcp_do_segment()
3032 			    (int)sbavail(&so->so_snd));  in tcp_do_segment()
3035 			mfree = sbcut_locked(&so->so_snd, acked);  in tcp_do_segment()
3964 	if ((so->so_snd.sb_hiwat == V_tcp_sendspace) && metrics.hc_sendpipe)  in tcp_mss()
3967 		bufsize = so->so_snd.sb_hiwat;  in tcp_mss()
3974 		if (bufsize > so->so_snd.sb_hiwat)  in tcp_mss()