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/*
* Macros for tracing/loging information in the CAM layer
*
* Copyright (c) 1997 Justin T. Gibbs.
* 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,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _CAM_CAM_DEBUG_H
#define _CAM_CAM_DEBUG_H 1
#if defined(CAMDEBUG) && defined(_KERNEL)
#include <machine/clock.h>
#endif /* CAMDEBUG && _KERNEL */
/*
* Debugging flags.
*/
typedef enum {
CAM_DEBUG_NONE = 0x00, /* no debugging */
CAM_DEBUG_INFO = 0x01, /* scsi commands, errors, data */
CAM_DEBUG_TRACE = 0x02, /* routine flow tracking */
CAM_DEBUG_SUBTRACE = 0x04, /* internal to routine flows */
CAM_DEBUG_CDB = 0x08, /* print out SCSI CDBs only */
CAM_DEBUG_XPT = 0x10, /* print out xpt scheduling */
CAM_DEBUG_PERIPH = 0x20 /* print out peripheral calls */
} cam_debug_flags;
#if defined(CAMDEBUG) && defined(_KERNEL)
/* Path we want to debug */
extern struct cam_path *cam_dpath;
/* Current debug levels set */
extern u_int32_t cam_dflags;
/* Printf delay value (to prevent scrolling) */
extern u_int32_t cam_debug_delay;
/* Debugging macros. */
#define CAM_DEBUGGED(path, flag) \
((cam_dflags & (flag)) \
&& (cam_dpath != NULL) \
&& (xpt_path_comp(cam_dpath, path) >= 0) \
&& (xpt_path_comp(cam_dpath, path) < 2))
#define CAM_DEBUG(path, flag, printfargs) \
if ((cam_dflags & (flag)) \
&& (cam_dpath != NULL) \
&& (xpt_path_comp(cam_dpath, path) >= 0) \
&& (xpt_path_comp(cam_dpath, path) < 2)) { \
xpt_print_path(path); \
printf printfargs; \
if (cam_debug_delay != 0) \
DELAY(cam_debug_delay); \
}
#define CAM_DEBUG_PRINT(flag, printfargs) \
if (cam_dflags & (flag)) { \
printf("cam_debug: "); \
printf printfargs; \
if (cam_debug_delay != 0) \
DELAY(cam_debug_delay); \
}
#else /* !CAMDEBUG || !_KERNEL */
#define CAM_DEBUGGED(A, B) 0
#define CAM_DEBUG(A, B, C)
#define CAM_DEBUG_PRINT(A, B)
#endif /* CAMDEBUG && _KERNEL */
#endif /* _CAM_CAM_DEBUG_H */
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