Import of CMU's RAIDframe via NetBSD.

1 files changed, 96 insertions, 0 deletions

diff --git a/sys/dev/raidframe/rf_reconutil.h b/sys/dev/raidframe/rf_reconutil.h
new file mode 100644
index 00000000000..f4ea1c6f5f7
--- /dev/null
+++ b/sys/dev/raidframe/rf_reconutil.h
@@ -0,0 +1,96 @@
+/*	$OpenBSD: rf_reconutil.h,v 1.1 1999/01/11 14:29:48 niklas Exp $	*/
+/*	$NetBSD: rf_reconutil.h,v 1.1 1998/11/13 04:20:34 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_reconutil.h -- header file for reconstruction utilities
+ ************************************************************/
+
+/* :  
+ * Log: rf_reconutil.h,v 
+ * Revision 1.10  1996/07/15 05:40:41  jimz
+ * some recon datastructure cleanup
+ * better handling of multiple failures
+ * added undocumented double-recon test
+ *
+ * Revision 1.9  1996/07/13  00:00:59  jimz
+ * sanitized generalized reconstruction architecture
+ * cleaned up head sep, rbuf problems
+ *
+ * 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  1996/06/03  23:28:26  jimz
+ * more bugfixes
+ * check in tree to sync for IPDS runs with current bugfixes
+ * there still may be a problem with threads in the script test
+ * getting I/Os stuck- not trivially reproducible (runs ~50 times
+ * in a row without getting stuck)
+ *
+ * Revision 1.5  1996/05/27  18:56:37  jimz
+ * more code cleanup
+ * better typing
+ * compiles in all 3 environments
+ *
+ * Revision 1.4  1996/05/23  21:46:35  jimz
+ * checkpoint in code cleanup (release prep)
+ * lots of types, function names have been fixed
+ *
+ * Revision 1.3  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 1.2  1995/12/06  15:06:47  root
+ * added copyright info
+ *
+ */
+
+#ifndef _RF__RF_RECONUTIL_H_
+#define _RF__RF_RECONUTIL_H_
+
+#include "rf_types.h"
+#include "rf_reconstruct.h"
+
+RF_ReconCtrl_t *rf_MakeReconControl(RF_RaidReconDesc_t *reconDesc,
+	RF_RowCol_t frow, RF_RowCol_t fcol, RF_RowCol_t srow, RF_RowCol_t scol);
+void rf_FreeReconControl(RF_Raid_t *raidPtr, RF_RowCol_t row);
+RF_HeadSepLimit_t rf_GetDefaultHeadSepLimit(RF_Raid_t *raidPtr);
+int rf_GetDefaultNumFloatingReconBuffers(RF_Raid_t *raidPtr);
+RF_ReconBuffer_t *rf_MakeReconBuffer(RF_Raid_t *raidPtr, RF_RowCol_t row,
+	RF_RowCol_t col, RF_RbufType_t type);
+void rf_FreeReconBuffer(RF_ReconBuffer_t *rbuf);
+void rf_CheckFloatingRbufCount(RF_Raid_t *raidPtr, int dolock);
+
+#endif /* !_RF__RF_RECONUTIL_H_ */