Import of CMU's RAIDframe via NetBSD.

1 files changed, 165 insertions, 0 deletions

diff --git a/sys/dev/raidframe/rf_raidframe.h b/sys/dev/raidframe/rf_raidframe.h
new file mode 100644
index 00000000000..e316dd09eb4
--- /dev/null
+++ b/sys/dev/raidframe/rf_raidframe.h
@@ -0,0 +1,165 @@
+/*	$OpenBSD: rf_raidframe.h,v 1.1 1999/01/11 14:29:44 niklas Exp $	*/
+/*	$NetBSD: rf_raidframe.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_raidframe.h 
+ *
+ * main header file for using raidframe in the kernel.
+ *
+ *****************************************************/
+
+/*
+ * :  
+ *
+ * Log: rf_raidframe.h,v 
+ * Revision 1.21  1996/06/17 03:00:15  jimz
+ * Change RAIDFRAME_GET_INFO interface to work around ioctl
+ * size limitation problem. This operation now takes a pointer
+ * to a pointer, and does its own copyout() (so it can transfer
+ * more than 8k at a time).
+ *
+ * Revision 1.20  1996/06/07  21:33:04  jimz
+ * begin using consistent types for sector numbers,
+ * stripe numbers, row+col numbers, recon unit numbers
+ *
+ * Revision 1.19  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 1.18  1996/05/24  22:17:04  jimz
+ * continue code + namespace cleanup
+ * typed a bunch of flags
+ *
+ * Revision 1.17  1996/05/23  21:46:35  jimz
+ * checkpoint in code cleanup (release prep)
+ * lots of types, function names have been fixed
+ *
+ * Revision 1.16  1996/05/23  00:33:23  jimz
+ * code cleanup: move all debug decls to rf_options.c, all extern
+ * debug decls to rf_options.h, all debug vars preceded by rf_
+ *
+ * Revision 1.15  1996/05/02  22:09:48  jimz
+ * change devs and spares in device_config to RF_RaidDisk_t
+ *
+ * Revision 1.14  1995/12/06  15:03:33  root
+ * added copyright info
+ *
+ * Revision 1.13  1995/09/30  20:39:54  jimz
+ * added new ioctls:
+ *   RAIDFRAME_RESET_ACCTOTALS
+ *   RAIDFRAME_GET_ACCTOTALS
+ *   RAIDFRAME_KEEP_ACCTOTALS
+ *
+ * Revision 1.12  1995/09/25  20:11:51  wvcii
+ * Added #include "rf_raid.h"
+ *
+ *
+ */
+
+#ifndef _RF__RF_RAIDFRAME_H_
+#define _RF__RF_RAIDFRAME_H_
+
+#include "rf_types.h"
+#include "rf_configure.h"
+#include "rf_disks.h"
+#include "rf_raid.h"
+
+struct rf_test_acc { /* used by RAIDFRAME_TEST_ACC ioctl */
+  RF_SectorNum_t       startSector;    /* raidAddress */
+  RF_SectorCount_t     numSector;      /* number of sectors to xfer */
+  char                *buf;            /* data buffer */
+  void                *returnBufs[10]; /* for async accs only, completed I/Os returned */
+  struct rf_test_acc  *next;           /* for making lists */
+  RF_IoType_t          type;           /* (see rf_types.h for RF_IO_TYPE_*) */
+  struct rf_test_acc  *myaddr;         /* user-address of this struct */
+  void                *bp;             /* used in-kernel: need not be set by user */
+};
+
+typedef RF_uint32 RF_ReconReqFlags_t;
+
+struct rf_recon_req {                              /* used to tell the kernel to fail a disk */
+  RF_RowCol_t row, col;
+  RF_ReconReqFlags_t flags;
+  void *raidPtr;                                   /* used internally; need not be set at ioctl time */
+  struct rf_recon_req *next;                       /* used internally; need not be set at ioctl time */
+};
+
+struct RF_SparetWait_s {
+  int C, G, fcol;                                  /* C = # disks in row, G = # units in stripe, fcol = which disk has failed */
+
+  RF_StripeCount_t  SUsPerPU;                                    /* this stuff is the info required to create a spare table */
+  int               TablesPerSpareRegion;
+  int               BlocksPerTable;
+  RF_StripeCount_t  TableDepthInPUs;
+  RF_StripeCount_t  SpareSpaceDepthPerRegionInSUs;
+
+  RF_SparetWait_t *next;  /* used internally; need not be set at ioctl time */
+};
+
+typedef struct RF_DeviceConfig_s {
+	u_int rows;
+	u_int cols;
+	u_int maxqdepth;
+	int ndevs;
+	RF_RaidDisk_t devs[RF_MAX_DISKS];
+	int nspares;
+	RF_RaidDisk_t spares[RF_MAX_DISKS];
+} RF_DeviceConfig_t;
+
+
+/* flags that can be put in the rf_recon_req structure */
+#define RF_FDFLAGS_NONE   0x0  /* just fail the disk */
+#define RF_FDFLAGS_RECON  0x1  /* fail and initiate recon */
+
+#define RF_SCSI_DISK_MAJOR   8  /* the device major number for disks in the system */
+
+#define RAIDFRAME_CONFIGURE         _IOW ('r',  1, void *)                  /* configure the driver */
+#define RAIDFRAME_SHUTDOWN          _IO  ('r',  2)                          /* shutdown the driver */
+#define RAIDFRAME_TUR               _IOW ('r',  3, dev_t)                   /* debug only: test unit ready */
+#define RAIDFRAME_TEST_ACC          _IOWR('r',  4, struct rf_test_acc)      /* run a test access */
+#define RAIDFRAME_FAIL_DISK         _IOW ('r',  5, struct rf_recon_req)     /* fail a disk & optionally start recon */
+#define RAIDFRAME_CHECKRECON        _IOWR('r',  6, int)                     /* get reconstruction % complete on indicated row */
+#define RAIDFRAME_REWRITEPARITY     _IO  ('r',  7)                          /* rewrite (initialize) all parity */
+#define RAIDFRAME_COPYBACK          _IO  ('r',  8)                          /* copy reconstructed data back to replaced disk */
+#define RAIDFRAME_SPARET_WAIT       _IOR ('r',  9, RF_SparetWait_t)         /* does not return until kernel needs a spare table */
+#define RAIDFRAME_SEND_SPARET       _IOW ('r', 10, void *)                  /* used to send a spare table down into the kernel */
+#define RAIDFRAME_ABORT_SPARET_WAIT _IO  ('r', 11)                          /* used to wake up the sparemap daemon & tell it to exit */
+#define RAIDFRAME_START_ATRACE      _IO  ('r', 12)                          /* start tracing accesses */
+#define RAIDFRAME_STOP_ATRACE       _IO  ('r', 13)                          /* stop tracing accesses */
+#define RAIDFRAME_GET_SIZE          _IOR ('r', 14, int)                     /* get size (# sectors) in raid device */
+#define RAIDFRAME_GET_INFO          _IOWR('r', 15, RF_DeviceConfig_t *)     /* get configuration */
+#define RAIDFRAME_RESET_ACCTOTALS   _IO  ('r', 16)                          /* reset AccTotals for device */
+#define RAIDFRAME_GET_ACCTOTALS     _IOR ('r', 17, RF_AccTotals_t)          /* retrieve AccTotals for device */
+#define RAIDFRAME_KEEP_ACCTOTALS    _IOW ('r', 18, int)                     /* turn AccTotals on or off for device */
+
+#endif /* !_RF__RF_RAIDFRAME_H_ */