sys/dev/raidframe/rf_copyback.h

   1 /*      $NetBSD: rf_copyback.h,v 1.4.18.3 2004/09/21 13:32:51 skrll Exp $       */
   2 /*
   3  * rf_copyback.h
   4  */
   5 /*
   6  * Copyright (c) 1996 Carnegie-Mellon University.
   7  * All rights reserved.
   8  *
   9  * Author: Jim Zelenka
  10  *
  11  * Permission to use, copy, modify and distribute this software and
  12  * its documentation is hereby granted, provided that both the copyright
  13  * notice and this permission notice appear in all copies of the
  14  * software, derivative works or modified versions, and any portions
  15  * thereof, and that both notices appear in supporting documentation.
  16  *
  17  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  18  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  19  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  20  *
  21  * Carnegie Mellon requests users of this software to return to
  22  *
  23  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  24  *  School of Computer Science
  25  *  Carnegie Mellon University
  26  *  Pittsburgh PA 15213-3890
  27  *
  28  * any improvements or extensions that they make and grant Carnegie the
  29  * rights to redistribute these changes.
  30  */
  31
  32 #ifndef _RF__RF_COPYBACK_H_
  33 #define _RF__RF_COPYBACK_H_
  34
  35 #include <dev/raidframe/raidframevar.h>
  36
  37 typedef struct RF_CopybackDesc_s {
  38         RF_Raid_t *raidPtr;
  39         RF_RowCol_t fcol;
  40         RF_RowCol_t spCol;
  41         int     status;
  42         RF_StripeNum_t stripeAddr;
  43         RF_SectorCount_t sectPerSU;
  44         RF_SectorCount_t sectPerStripe;
  45         char   *databuf;
  46         RF_DiskQueueData_t *readreq;
  47         RF_DiskQueueData_t *writereq;
  48         struct timeval starttime;
  49         RF_MCPair_t *mcpair;
  50 }       RF_CopybackDesc_t;
  51
  52 extern int rf_copyback_in_progress;
  53
  54 int     rf_ConfigureCopyback(RF_ShutdownList_t ** listp);
  55 void    rf_CopybackReconstructedData(RF_Raid_t * raidPtr);
  56 void    rf_ContinueCopyback(RF_CopybackDesc_t * desc);
  57
  58 #endif                          /* !_RF__RF_COPYBACK_H_ */