After much delay and anticipation, welcome RAIDFrame into the FreeBSD

world.  This should be considered highly experimental.

Approved-by:	re

1 files changed, 70 insertions, 0 deletions

diff --git a/sys/dev/raidframe/rf_sstf.h b/sys/dev/raidframe/rf_sstf.h
new file mode 100644
index 0000000..2fc1c0d
--- /dev/null
+++ b/sys/dev/raidframe/rf_sstf.h
@@ -0,0 +1,70 @@
+/*	$FreeBSD$ */
+/*	$NetBSD: rf_sstf.h,v 1.3 1999/02/05 00:06:17 oster Exp $	*/
+/*
+ * Copyright (c) 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Jim Zelenka
+ *
+ * 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.
+ */
+
+#ifndef _RF__RF_SSTF_H_
+#define _RF__RF_SSTF_H_
+
+#include <dev/raidframe/rf_diskqueue.h>
+
+typedef struct RF_SstfQ_s {
+	RF_DiskQueueData_t *queue;
+	RF_DiskQueueData_t *qtail;
+	int     qlen;
+}       RF_SstfQ_t;
+
+typedef struct RF_Sstf_s {
+	RF_SstfQ_t left;
+	RF_SstfQ_t right;
+	RF_SstfQ_t lopri;
+	RF_SectorNum_t last_sector;
+	int     dir;
+	int     allow_reverse;
+}       RF_Sstf_t;
+
+void   *
+rf_SstfCreate(RF_SectorCount_t sect_per_disk,
+    RF_AllocListElem_t * cl_list, RF_ShutdownList_t ** listp);
+void   *
+rf_ScanCreate(RF_SectorCount_t sect_per_disk,
+    RF_AllocListElem_t * cl_list, RF_ShutdownList_t ** listp);
+void   *
+rf_CscanCreate(RF_SectorCount_t sect_per_disk,
+    RF_AllocListElem_t * cl_list, RF_ShutdownList_t ** listp);
+void    rf_SstfEnqueue(void *qptr, RF_DiskQueueData_t * req, int priority);
+RF_DiskQueueData_t *rf_SstfDequeue(void *qptr);
+RF_DiskQueueData_t *rf_SstfPeek(void *qptr);
+int 
+rf_SstfPromote(void *qptr, RF_StripeNum_t parityStripeID,
+    RF_ReconUnitNum_t which_ru);
+RF_DiskQueueData_t *rf_ScanDequeue(void *qptr);
+RF_DiskQueueData_t *rf_ScanPeek(void *qptr);
+RF_DiskQueueData_t *rf_CscanDequeue(void *qptr);
+RF_DiskQueueData_t *rf_CscanPeek(void *qptr);
+
+#endif				/* !_RF__RF_SSTF_H_ */