cam_debug.h revision 39212
1/* 2 * Macros for tracing/loging information in the CAM layer 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id$ 29 */ 30#ifndef _CAM_CAM_DEBUG_H 31#define _CAM_CAM_DEBUG_H 1 32 33#if defined(CAMDEBUG) && defined(KERNEL) 34#include <machine/clock.h> 35#endif /* CAMDEBUG && KERNEL */ 36 37/* 38 * Debugging flags. 39 */ 40typedef enum { 41 CAM_DEBUG_NONE = 0x00, /* no debugging */ 42 CAM_DEBUG_INFO = 0x01, /* scsi commands, errors, data */ 43 CAM_DEBUG_TRACE = 0x02, /* routine flow tracking */ 44 CAM_DEBUG_SUBTRACE = 0x04, /* internal to routine flows */ 45} cam_debug_flags; 46 47#if defined(CAMDEBUG) && defined(KERNEL) 48 49/* Path we want to debug */ 50extern struct cam_path *cam_dpath; 51/* Current debug levels set */ 52extern u_int32_t cam_dflags; 53 54/* Debugging macros. */ 55#define CAM_DEBUG(path, flag, printfargs) \ 56 if ((cam_dflags & (flag)) \ 57 && (cam_dpath != NULL) \ 58 && (xpt_path_comp(path, cam_dpath) >= 0)) { \ 59 xpt_print_path(path); \ 60 printf printfargs; \ 61 DELAY(100000); \ 62 } 63#define CAM_DEBUG_PRINT(flag, printfargs) \ 64 if (cam_dflags & (flag)) { \ 65 printf("cam_debug: "); \ 66 printf printfargs; \ 67 DELAY(100000); \ 68 } 69 70#else /* !CAMDEBUG || !KERNEL */ 71 72#define CAM_DEBUG(A, B, C) 73#define CAM_DEBUG_PRINT(A, B) 74 75#endif /* CAMDEBUG && KERNEL */ 76 77#endif /* _CAM_CAM_DEBUG_H */ 78