Import of CMU's RAIDframe via NetBSD.

1 files changed, 114 insertions, 0 deletions

diff --git a/sys/dev/raidframe/rf_reconmap.h b/sys/dev/raidframe/rf_reconmap.h
new file mode 100644
index 00000000000..5d03baefb1b
--- /dev/null
+++ b/sys/dev/raidframe/rf_reconmap.h
@@ -0,0 +1,114 @@
+/*	$OpenBSD: rf_reconmap.h,v 1.1 1999/01/11 14:29:46 niklas Exp $	*/
+/*	$NetBSD: rf_reconmap.h,v 1.1 1998/11/13 04:20:33 oster Exp $	*/
+/*
+ * Copyright (c) 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Mark Holland
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+/******************************************************************************
+ * rf_reconMap.h -- Header file describing reconstruction status data structure
+ ******************************************************************************/
+
+/* :  
+ * Log: rf_reconmap.h,v 
+ * Revision 1.10  1996/08/01 15:59:25  jimz
+ * minor cleanup
+ *
+ * Revision 1.9  1996/06/09  02:36:46  jimz
+ * lots of little crufty cleanup- fixup whitespace
+ * issues, comment #ifdefs, improve typing in some
+ * places (esp size-related)
+ *
+ * Revision 1.8  1996/06/07  21:33:04  jimz
+ * begin using consistent types for sector numbers,
+ * stripe numbers, row+col numbers, recon unit numbers
+ *
+ * Revision 1.7  1996/06/05  18:06:02  jimz
+ * Major code cleanup. The Great Renaming is now done.
+ * Better modularity. Better typing. Fixed a bunch of
+ * synchronization bugs. Made a lot of global stuff
+ * per-desc or per-array. Removed dead code.
+ *
+ * Revision 1.6  1996/05/23  21:46:35  jimz
+ * checkpoint in code cleanup (release prep)
+ * lots of types, function names have been fixed
+ *
+ * Revision 1.5  1996/05/18  19:51:34  jimz
+ * major code cleanup- fix syntax, make some types consistent,
+ * add prototypes, clean out dead code, et cetera
+ *
+ * Revision 1.4  1995/12/06  15:04:01  root
+ * added copyright info
+ *
+ */
+
+#ifndef _RF__RF_RECONMAP_H_
+#define _RF__RF_RECONMAP_H_
+
+#include "rf_types.h"
+#include "rf_threadstuff.h"
+
+/*
+ * Main reconstruction status descriptor. size and maxsize are used for
+ * monitoring only:  they have no function for reconstruction.
+ */
+struct RF_ReconMap_s {
+  RF_SectorCount_t         sectorsPerReconUnit; /* sectors per reconstruct unit */
+  RF_SectorCount_t         sectorsInDisk;       /* total sectors in disk */
+  RF_SectorCount_t         unitsLeft;           /* recon units left to recon */
+  RF_ReconUnitCount_t      totalRUs;            /* total recon units on disk */
+  RF_ReconUnitCount_t      spareRUs;            /* total number of spare RUs on failed disk */
+  RF_StripeCount_t         totalParityStripes;  /* total number of parity stripes in array */
+  u_int                    size;				/* overall size of this structure */
+  u_int                    maxSize;			    /* maximum size so far */
+  RF_ReconMapListElem_t  **status;              /* array of ptrs to list elements */
+  RF_DECLARE_MUTEX(mutex)
+};
+
+/* a list element */
+struct RF_ReconMapListElem_s {
+  RF_SectorNum_t          startSector; /* bounding sect nums on this block */
+  RF_SectorNum_t          stopSector;
+  RF_ReconMapListElem_t  *next;        /* next element in list */
+};
+
+RF_ReconMap_t *rf_MakeReconMap(RF_Raid_t *raidPtr, RF_SectorCount_t ru_sectors,
+	RF_SectorCount_t disk_sectors, RF_ReconUnitCount_t spareUnitsPerDisk);
+
+void rf_ReconMapUpdate(RF_Raid_t *raidPtr, RF_ReconMap_t *mapPtr,
+	RF_SectorNum_t startSector, RF_SectorNum_t stopSector);
+
+void rf_FreeReconMap(RF_ReconMap_t *mapPtr);
+
+int rf_CheckRUReconstructed(RF_ReconMap_t *mapPtr, RF_SectorNum_t startSector);
+
+RF_ReconUnitCount_t rf_UnitsLeftToReconstruct(RF_ReconMap_t *mapPtr);
+
+void rf_PrintReconMap(RF_Raid_t *raidPtr, RF_ReconMap_t *mapPtr,
+	RF_RowCol_t frow, RF_RowCol_t fcol);
+
+void rf_PrintReconSchedule(RF_ReconMap_t *mapPtr, struct timeval *starttime);
+
+#endif /* !_RF__RF_RECONMAP_H_ */