common upgrades

Change-Id: I567fc15845b601019d346569ecfcef4f89687fd2

include/sys/dkbad.h

@@ -0,0 +1,82 @@
+/*	$NetBSD: dkbad.h,v 1.15 2005/12/26 18:41:36 perry Exp $	*/
+
+/*-
+ * Copyright (c) 1982, 1986, 1993, 1994
+ *	The Regents of the University of California.  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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)dkbad.h	8.2 (Berkeley) 7/10/94
+ */
+
+#ifndef _SYS_DKBAD_H_
+#define _SYS_DKBAD_H_
+
+/*
+ * Definitions needed to perform bad sector revectoring ala DEC STD 144.
+ *
+ * The bad sector information is located in the first 5 even numbered
+ * sectors of the last track of the disk pack.  There are five identical
+ * copies of the information, described by the dkbad structure.
+ *
+ * Replacement sectors are allocated starting with the first sector before
+ * the bad sector information and working backwards towards the beginning of
+ * the disk.  A maximum of 126 bad sectors are supported.  The position of
+ * the bad sector in the bad sector table determines which replacement sector
+ * it corresponds to.
+ *
+ * The bad sector information and replacement sectors are conventionally
+ * only accessible through the 'c' file system partition of the disk.  If
+ * that partition is used for a file system, the user is responsible for
+ * making sure that it does not overlap the bad sector information or any
+ * replacement sectors.
+ */
+#define NBT_BAD	126
+
+struct dkbad {
+	int32_t   bt_csn;		/* cartridge serial number */
+	uint16_t bt_mbz;		/* unused; should be 0 */
+	uint16_t bt_flag;		/* -1 => alignment cartridge */
+	struct bt_bad {
+		uint16_t bt_cyl;	/* cylinder number of bad sector */
+		uint16_t bt_trksec;	/* track and sector number */
+	} bt_bad[NBT_BAD];
+};
+
+/*
+ * An indicator that the bad block handling is available. This is used
+ * to conditionally enable code that performs badblock re-mapping.
+ */
+#define	HAS_BAD144_HANDLING
+
+#define	ECC	0
+#define	SSE	1
+#define	BSE	2
+#define	CONT	3
+
+#ifdef _KERNEL
+int isbad(struct dkbad *, int, int, int);
+#endif
+#endif /* _SYS_DKBAD_H_ */