1eecf8e491
out-dated comments, and other unneeded stuff. This helps prepare for cleaning up the rest of the code, and adding new functionality. No functional changes to the kernel code in this commit.
115 lines
5.4 KiB
C
115 lines
5.4 KiB
C
/* $NetBSD: rf_raidframe.h,v 1.2 1999/01/26 02:34:01 oster Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Mark Holland
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*****************************************************
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*
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* rf_raidframe.h
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*
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* main header file for using raidframe in the kernel.
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*
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*****************************************************/
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#ifndef _RF__RF_RAIDFRAME_H_
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#define _RF__RF_RAIDFRAME_H_
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#include "rf_types.h"
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#include "rf_configure.h"
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#include "rf_disks.h"
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#include "rf_raid.h"
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struct rf_test_acc { /* used by RAIDFRAME_TEST_ACC ioctl */
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RF_SectorNum_t startSector; /* raidAddress */
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RF_SectorCount_t numSector; /* number of sectors to xfer */
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char *buf; /* data buffer */
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void *returnBufs[10]; /* for async accs only, completed I/Os returned */
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struct rf_test_acc *next; /* for making lists */
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RF_IoType_t type; /* (see rf_types.h for RF_IO_TYPE_*) */
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struct rf_test_acc *myaddr; /* user-address of this struct */
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void *bp; /* used in-kernel: need not be set by user */
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};
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typedef RF_uint32 RF_ReconReqFlags_t;
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struct rf_recon_req { /* used to tell the kernel to fail a disk */
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RF_RowCol_t row, col;
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RF_ReconReqFlags_t flags;
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void *raidPtr; /* used internally; need not be set at ioctl time */
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struct rf_recon_req *next; /* used internally; need not be set at ioctl time */
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};
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struct RF_SparetWait_s {
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int C, G, fcol; /* C = # disks in row, G = # units in stripe, fcol = which disk has failed */
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RF_StripeCount_t SUsPerPU; /* this stuff is the info required to create a spare table */
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int TablesPerSpareRegion;
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int BlocksPerTable;
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RF_StripeCount_t TableDepthInPUs;
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RF_StripeCount_t SpareSpaceDepthPerRegionInSUs;
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RF_SparetWait_t *next; /* used internally; need not be set at ioctl time */
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};
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typedef struct RF_DeviceConfig_s {
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u_int rows;
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u_int cols;
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u_int maxqdepth;
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int ndevs;
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RF_RaidDisk_t devs[RF_MAX_DISKS];
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int nspares;
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RF_RaidDisk_t spares[RF_MAX_DISKS];
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} RF_DeviceConfig_t;
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/* flags that can be put in the rf_recon_req structure */
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#define RF_FDFLAGS_NONE 0x0 /* just fail the disk */
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#define RF_FDFLAGS_RECON 0x1 /* fail and initiate recon */
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#define RF_SCSI_DISK_MAJOR 8 /* the device major number for disks in the system */
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#define RAIDFRAME_CONFIGURE _IOW ('r', 1, void *) /* configure the driver */
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#define RAIDFRAME_SHUTDOWN _IO ('r', 2) /* shutdown the driver */
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#define RAIDFRAME_TUR _IOW ('r', 3, dev_t) /* debug only: test unit ready */
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#define RAIDFRAME_TEST_ACC _IOWR('r', 4, struct rf_test_acc) /* run a test access */
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#define RAIDFRAME_FAIL_DISK _IOW ('r', 5, struct rf_recon_req) /* fail a disk & optionally start recon */
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#define RAIDFRAME_CHECKRECON _IOWR('r', 6, int) /* get reconstruction % complete on indicated row */
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#define RAIDFRAME_REWRITEPARITY _IO ('r', 7) /* rewrite (initialize) all parity */
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#define RAIDFRAME_COPYBACK _IO ('r', 8) /* copy reconstructed data back to replaced disk */
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#define RAIDFRAME_SPARET_WAIT _IOR ('r', 9, RF_SparetWait_t) /* does not return until kernel needs a spare table */
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#define RAIDFRAME_SEND_SPARET _IOW ('r', 10, void *) /* used to send a spare table down into the kernel */
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#define RAIDFRAME_ABORT_SPARET_WAIT _IO ('r', 11) /* used to wake up the sparemap daemon & tell it to exit */
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#define RAIDFRAME_START_ATRACE _IO ('r', 12) /* start tracing accesses */
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#define RAIDFRAME_STOP_ATRACE _IO ('r', 13) /* stop tracing accesses */
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#define RAIDFRAME_GET_SIZE _IOR ('r', 14, int) /* get size (# sectors) in raid device */
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#define RAIDFRAME_GET_INFO _IOWR('r', 15, RF_DeviceConfig_t *) /* get configuration */
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#define RAIDFRAME_RESET_ACCTOTALS _IO ('r', 16) /* reset AccTotals for device */
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#define RAIDFRAME_GET_ACCTOTALS _IOR ('r', 17, RF_AccTotals_t) /* retrieve AccTotals for device */
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#define RAIDFRAME_KEEP_ACCTOTALS _IOW ('r', 18, int) /* turn AccTotals on or off for device */
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#endif /* !_RF__RF_RAIDFRAME_H_ */
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