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