CAM Transport Layer (XPT).

Submitted by:	The CAM Team

1 files changed, 77 insertions, 0 deletions

diff --git a/sys/cam/cam_debug.h b/sys/cam/cam_debug.h
new file mode 100644
index 0000000..f1b95f2
--- /dev/null
+++ b/sys/cam/cam_debug.h
@@ -0,0 +1,77 @@
+/*
+ * 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.
+ *
+ *      $Id$
+ */
+#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_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;
+ 
+/* Debugging macros. */
+#define	CAM_DEBUG(path, flag, printfargs)		\
+	if ((cam_dflags & (flag))			\
+	 && (cam_dpath != NULL)				\
+	 && (xpt_path_comp(path, cam_dpath) >= 0)) {	\
+		xpt_print_path(path);			\
+ 		printf printfargs;			\
+		DELAY(100000);				\
+	}
+#define	CAM_DEBUG_PRINT(flag, printfargs)		\
+	if (cam_dflags & (flag)) {			\
+		printf("cam_debug: ");			\
+ 		printf printfargs;			\
+		DELAY(100000);				\
+	}
+
+#else /* !CAMDEBUG || !KERNEL */
+
+#define	CAM_DEBUG(A, B, C)
+#define	CAM_DEBUG_PRINT(A, B)
+
+#endif /* CAMDEBUG && KERNEL */
+
+#endif /* _CAM_CAM_DEBUG_H */