diff options
Diffstat (limited to 'freebsd/sys/net/altq/altq_rmclass_debug.h')
| -rw-r--r-- | freebsd/sys/net/altq/altq_rmclass_debug.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/freebsd/sys/net/altq/altq_rmclass_debug.h b/freebsd/sys/net/altq/altq_rmclass_debug.h new file mode 100644 index 00000000..7adbaec4 --- /dev/null +++ b/freebsd/sys/net/altq/altq_rmclass_debug.h @@ -0,0 +1,113 @@ +/*- + * Copyright (c) Sun Microsystems, Inc. 1998 All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the SMCC Technology + * Development Group at Sun Microsystems, Inc. + * + * 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or + * promote products derived from this software without specific prior + * written permission. + * + * SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE + * SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE. The software is + * provided "as is" without express or implied warranty of any kind. + * + * These notices must be retained in any copies of any part of this software. + * + * $KAME: altq_rmclass_debug.h,v 1.3 2002/11/29 04:36:24 kjc Exp $ + * $FreeBSD$ + */ + +#ifndef _ALTQ_ALTQ_RMCLASS_DEBUG_H_ +#define _ALTQ_ALTQ_RMCLASS_DEBUG_H_ + +/* #pragma ident "@(#)rm_class_debug.h 1.7 98/05/04 SMI" */ + +/* + * Cbq debugging macros + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef CBQ_TRACE +#ifndef NCBQTRACE +#define NCBQTRACE (16 * 1024) +#endif + +/* + * To view the trace output, using adb, type: + * adb -k /dev/ksyms /dev/mem <cr>, then type + * cbqtrace_count/D to get the count, then type + * cbqtrace_buffer,0tcount/Dp4C" "Xn + * This will dump the trace buffer from 0 to count. + */ +/* + * in ALTQ, "call cbqtrace_dump(N)" from DDB to display 20 events + * from Nth event in the circular buffer. + */ + +struct cbqtrace { + int count; + int function; /* address of function */ + int trace_action; /* descriptive 4 characters */ + int object; /* object operated on */ +}; + +extern struct cbqtrace cbqtrace_buffer[]; +extern struct cbqtrace *cbqtrace_ptr; +extern int cbqtrace_count; + +#define CBQTRACEINIT() { \ + if (cbqtrace_ptr == NULL) \ + cbqtrace_ptr = cbqtrace_buffer; \ + else { \ + cbqtrace_ptr = cbqtrace_buffer; \ + bzero((void *)cbqtrace_ptr, sizeof(cbqtrace_buffer)); \ + cbqtrace_count = 0; \ + } \ +} + +#define LOCK_TRACE() splimp() +#define UNLOCK_TRACE(x) splx(x) + +#define CBQTRACE(func, act, obj) { \ + int __s = LOCK_TRACE(); \ + int *_p = &cbqtrace_ptr->count; \ + *_p++ = ++cbqtrace_count; \ + *_p++ = (int)(func); \ + *_p++ = (int)(act); \ + *_p++ = (int)(obj); \ + if ((struct cbqtrace *)(void *)_p >= &cbqtrace_buffer[NCBQTRACE])\ + cbqtrace_ptr = cbqtrace_buffer; \ + else \ + cbqtrace_ptr = (struct cbqtrace *)(void *)_p; \ + UNLOCK_TRACE(__s); \ + } +#else + +/* If no tracing, define no-ops */ +#define CBQTRACEINIT() +#define CBQTRACE(a, b, c) + +#endif /* !CBQ_TRACE */ + +#ifdef __cplusplus +} +#endif + +#endif /* _ALTQ_ALTQ_RMCLASS_DEBUG_H_ */ |