--- old/usr/src/uts/common/sys/sdt.h	Fri Aug 29 10:35:40 2008
+++ new/usr/src/uts/common/sys/sdt.h	Fri Aug 29 10:35:39 2008
@@ -239,6 +239,50 @@
 	    type3, arg3, type4, arg4, type5, arg5, type6, arg6,		\
 	    type7, arg7);
 
+#define	DTRACE_TCP(name)						\
+	DTRACE_PROBE(__tcp_##name);
+
+#define	DTRACE_TCP1(name, type1, arg1)					\
+	DTRACE_PROBE1(__tcp_##name, type1, arg1);
+
+#define	DTRACE_TCP2(name, type1, arg1, type2, arg2)			\
+	DTRACE_PROBE2(__tcp_##name, type1, arg1, type2, arg2);
+
+#define	DTRACE_TCP3(name, type1, arg1, type2, arg2, type3, arg3)	\
+	DTRACE_PROBE3(__tcp_##name, type1, arg1, type2, arg2, type3, arg3);
+
+#define	DTRACE_TCP4(name, type1, arg1, type2, arg2, 			\
+    type3, arg3, type4, arg4)						\
+	DTRACE_PROBE4(__tcp_##name, type1, arg1, type2, arg2, 		\
+	    type3, arg3, type4, arg4);
+
+#define	DTRACE_TCP5(name, type1, arg1, type2, arg2, 			\
+    type3, arg3, type4, arg4, type5, arg5)				\
+	DTRACE_PROBE5(__tcp_##name, type1, arg1, type2, arg2, 		\
+	    type3, arg3, type4, arg4, type5, arg5);
+
+#define	DTRACE_TCPF(name)						\
+	DTRACE_PROBE(__tcpf_##name);
+
+#define	DTRACE_TCPF1(name, type1, arg1)					\
+	DTRACE_PROBE1(__tcpf_##name, type1, arg1);
+
+#define	DTRACE_TCPF2(name, type1, arg1, type2, arg2)			\
+	DTRACE_PROBE2(__tcpf_##name, type1, arg1, type2, arg2);
+
+#define	DTRACE_TCPF3(name, type1, arg1, type2, arg2, type3, arg3)	\
+	DTRACE_PROBE3(__tcpf_##name, type1, arg1, type2, arg2, type3, arg3);
+
+#define	DTRACE_TCPF4(name, type1, arg1, type2, arg2, 			\
+    type3, arg3, type4, arg4)						\
+	DTRACE_PROBE4(__tcpf_##name, type1, arg1, type2, arg2, 		\
+	    type3, arg3, type4, arg4);
+
+#define	DTRACE_TCPF5(name, type1, arg1, type2, arg2, 			\
+    type3, arg3, type4, arg4, type5, arg5)				\
+	DTRACE_PROBE5(__tcpf_##name, type1, arg1, type2, arg2, 		\
+	    type3, arg3, type4, arg4, type5, arg5);
+
 #define	DTRACE_SYSEVENT2(name, type1, arg1, type2, arg2)		\
 	DTRACE_PROBE2(__sysevent_##name, type1, arg1, type2, arg2);