After much delay and anticipation, welcome RAIDFrame into the FreeBSD

world.  This should be considered highly experimental.

Approved-by:	re

1 files changed, 62 insertions, 0 deletions

diff --git a/sys/dev/raidframe/rf_fifo.h b/sys/dev/raidframe/rf_fifo.h
new file mode 100644
index 0000000..9392f08
--- /dev/null
+++ b/sys/dev/raidframe/rf_fifo.h
@@ -0,0 +1,62 @@
+/*	$FreeBSD$ */
+/*	$NetBSD: rf_fifo.h,v 1.3 1999/02/05 00:06:11 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_fifo.h --  prioritized FIFO queue code.
+ *
+ * 4-9-93 Created (MCH)
+ */
+
+
+#ifndef _RF__RF_FIFO_H_
+#define _RF__RF_FIFO_H_
+
+#include <dev/raidframe/rf_archs.h>
+#include <dev/raidframe/rf_types.h>
+#include <dev/raidframe/rf_diskqueue.h>
+
+typedef struct RF_FifoHeader_s {
+	RF_DiskQueueData_t *hq_head, *hq_tail;	/* high priority requests */
+	RF_DiskQueueData_t *lq_head, *lq_tail;	/* low priority requests */
+	int     hq_count, lq_count;	/* debug only */
+}       RF_FifoHeader_t;
+
+extern void *
+rf_FifoCreate(RF_SectorCount_t sectPerDisk,
+    RF_AllocListElem_t * clList, RF_ShutdownList_t ** listp);
+extern void 
+rf_FifoEnqueue(void *q_in, RF_DiskQueueData_t * elem,
+    int priority);
+extern RF_DiskQueueData_t *rf_FifoDequeue(void *q_in);
+extern RF_DiskQueueData_t *rf_FifoPeek(void *q_in);
+extern int 
+rf_FifoPromote(void *q_in, RF_StripeNum_t parityStripeID,
+    RF_ReconUnitNum_t which_ru);
+
+#endif				/* !_RF__RF_FIFO_H_ */