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 * $FreeBSD$ 29 */ 30 #ifndef _CAM_CAM_DEBUG_H 31 #define _CAM_CAM_DEBUG_H 1 32 33 /* 34 * Debugging flags. 35 */ 36 typedef enum { 37 CAM_DEBUG_NONE = 0x00, /* no debugging */ 38 CAM_DEBUG_INFO = 0x01, /* scsi commands, errors, data */ 39 CAM_DEBUG_TRACE = 0x02, /* routine flow tracking */ 40 CAM_DEBUG_SUBTRACE = 0x04, /* internal to routine flows */ 41 CAM_DEBUG_CDB = 0x08, /* print out SCSI CDBs only */ 42 CAM_DEBUG_XPT = 0x10, /* print out xpt scheduling */ 43 CAM_DEBUG_PERIPH = 0x20, /* print out peripheral calls */ 44 CAM_DEBUG_PROBE = 0x40 /* print out probe actions */ 45 } cam_debug_flags; 46 47 #if defined(CAMDEBUG) && defined(_KERNEL) 48 49 /* Path we want to debug */ 50 extern struct cam_path *cam_dpath; 51 /* Current debug levels set */ 52 extern u_int32_t cam_dflags; 53 /* Printf delay value (to prevent scrolling) */ 54 extern u_int32_t cam_debug_delay; 55 56 /* Debugging macros. */ 57 #define CAM_DEBUGGED(path, flag) \ 58 ((cam_dflags & (flag)) \ 59 && (cam_dpath != NULL) \ 60 && (xpt_path_comp(cam_dpath, path) >= 0) \ 61 && (xpt_path_comp(cam_dpath, path) < 2)) 62 63 #define CAM_DEBUG(path, flag, printfargs) \ 64 if ((cam_dflags & (flag)) \ 65 && (cam_dpath != NULL) \ 66 && (xpt_path_comp(cam_dpath, path) >= 0) \ 67 && (xpt_path_comp(cam_dpath, path) < 2)) { \ 68 xpt_print_path(path); \ 69 printf printfargs; \ 70 if (cam_debug_delay != 0) \ 71 DELAY(cam_debug_delay); \ 72 } 73 74 #define CAM_DEBUG_PRINT(flag, printfargs) \ 75 if (cam_dflags & (flag)) { \ 76 printf("cam_debug: "); \ 77 printf printfargs; \ 78 if (cam_debug_delay != 0) \ 79 DELAY(cam_debug_delay); \ 80 } 81 82 #define CAM_DEBUG_PATH_PRINT(flag, path, printfargs) \ 83 if (cam_dflags & (flag)) { \ 84 xpt_print(path, "cam_debug: "); \ 85 printf printfargs; \ 86 if (cam_debug_delay != 0) \ 87 DELAY(cam_debug_delay); \ 88 } 89 90 #else /* !CAMDEBUG || !_KERNEL */ 91 92 #define CAM_DEBUGGED(A, B) 0 93 #define CAM_DEBUG(A, B, C) 94 #define CAM_DEBUG_PRINT(A, B) 95 #define CAM_DEBUG_PATH_PRINT(A, B, C) 96 97 #endif /* CAMDEBUG && _KERNEL */ 98 99 #endif /* _CAM_CAM_DEBUG_H */ 100