1/*-
2 * Copyright (c) Sun Microsystems, Inc. 1998 All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the SMCC Technology
18 * Development Group at Sun Microsystems, Inc.
19 *
20 * 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or
21 * promote products derived from this software without specific prior
22 * written permission.
23 *
24 * SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE
25 * SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE. The software is
26 * provided "as is" without express or implied warranty of any kind.
27 *
28 * These notices must be retained in any copies of any part of this software.
29 *
30 * $KAME: altq_rmclass_debug.h,v 1.3 2002/11/29 04:36:24 kjc Exp $
31 */
32
33#ifndef _ALTQ_ALTQ_RMCLASS_DEBUG_H_
34#define _ALTQ_ALTQ_RMCLASS_DEBUG_H_
35
36/*
37 * Cbq debugging macros
38 */
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44#ifdef CBQ_TRACE
45#ifndef NCBQTRACE
46#define NCBQTRACE (16 * 1024)
47#endif
48
49/*
50 * To view the trace output, using adb, type:
51 * adb -k /dev/ksyms /dev/mem <cr>, then type
52 * cbqtrace_count/D to get the count, then type
53 * cbqtrace_buffer,0tcount/Dp4C" "Xn
54 * This will dump the trace buffer from 0 to count.
55 */
56/*
57 * in ALTQ, "call cbqtrace_dump(N)" from DDB to display 20 events
58 * from Nth event in the circular buffer.
59 */
60
61struct cbqtrace {
62 int count;
63 int function; /* address of function */
64 int trace_action; /* descriptive 4 characters */
65 int object; /* object operated on */
66};
67
68extern struct cbqtrace cbqtrace_buffer[];
69extern struct cbqtrace *cbqtrace_ptr;
70extern int cbqtrace_count;
71
72#define CBQTRACEINIT() { \
73 if (cbqtrace_ptr == NULL) \
74 cbqtrace_ptr = cbqtrace_buffer; \
75 else { \
76 cbqtrace_ptr = cbqtrace_buffer; \
77 bzero((void *)cbqtrace_ptr, sizeof(cbqtrace_buffer)); \
78 cbqtrace_count = 0; \
79 } \
80}
81
82#define LOCK_TRACE() splimp()
83#define UNLOCK_TRACE(x) splx(x)
84
85#define CBQTRACE(func, act, obj) { \
86 int __s = LOCK_TRACE(); \
87 int *_p = &cbqtrace_ptr->count; \
88 *_p++ = ++cbqtrace_count; \
89 *_p++ = (int)(func); \
90 *_p++ = (int)(act); \
91 *_p++ = (int)(obj); \
92 if ((struct cbqtrace *)(void *)_p >= &cbqtrace_buffer[NCBQTRACE])\
93 cbqtrace_ptr = cbqtrace_buffer; \
94 else \
95 cbqtrace_ptr = (struct cbqtrace *)(void *)_p; \
96 UNLOCK_TRACE(__s); \
97 }
98#else
99
100/* If no tracing, define no-ops */
101#define CBQTRACEINIT()
102#define CBQTRACE(a, b, c)
103
104#endif /* !CBQ_TRACE */
105
106#ifdef __cplusplus
107}
108#endif
109
110#endif /* _ALTQ_ALTQ_RMCLASS_DEBUG_H_ */