Home | History | Annotate | Line # | Download | only in raidframe 
      1  1.6  msaitoh /*	$NetBSD: rf_dagflags.h,v 1.6 2019/07/11 03:49:51 msaitoh Exp $	*/
      2  1.1    oster /*
      3  1.1    oster  * Copyright (c) 1995 Carnegie-Mellon University.
      4  1.1    oster  * All rights reserved.
      5  1.1    oster  *
      6  1.1    oster  * Author: Mark Holland
      7  1.1    oster  *
      8  1.1    oster  * Permission to use, copy, modify and distribute this software and
      9  1.1    oster  * its documentation is hereby granted, provided that both the copyright
     10  1.1    oster  * notice and this permission notice appear in all copies of the
     11  1.1    oster  * software, derivative works or modified versions, and any portions
     12  1.1    oster  * thereof, and that both notices appear in supporting documentation.
     13  1.1    oster  *
     14  1.1    oster  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     15  1.1    oster  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     16  1.1    oster  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     17  1.1    oster  *
     18  1.1    oster  * Carnegie Mellon requests users of this software to return to
     19  1.1    oster  *
     20  1.1    oster  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     21  1.1    oster  *  School of Computer Science
     22  1.1    oster  *  Carnegie Mellon University
     23  1.1    oster  *  Pittsburgh PA 15213-3890
     24  1.1    oster  *
     25  1.1    oster  * any improvements or extensions that they make and grant Carnegie the
     26  1.1    oster  * rights to redistribute these changes.
     27  1.1    oster  */
     28  1.1    oster 
     29  1.1    oster /**************************************************************************************
     30  1.1    oster  *
     31  1.1    oster  * dagflags.h -- flags that can be given to DoAccess
     32  1.1    oster  * I pulled these out of dag.h because routines that call DoAccess may need these flags,
     33  1.1    oster  * but certainly do not need the declarations related to the DAG data structures.
     34  1.1    oster  *
     35  1.1    oster  **************************************************************************************/
     36  1.1    oster 
     37  1.1    oster 
     38  1.1    oster #ifndef _RF__RF_DAGFLAGS_H_
     39  1.1    oster #define _RF__RF_DAGFLAGS_H_
     40  1.1    oster 
     41  1.1    oster /*
     42  1.1    oster  * Bitmasks for the "flags" parameter (RF_RaidAccessFlags_t) used
     43  1.1    oster  * by DoAccess, SelectAlgorithm, and the DAG creation routines.
     44  1.1    oster  *
     45  1.1    oster  * If USE_DAG or USE_ASM is specified, neither the DAG nor the ASM
     46  1.6  msaitoh  * will be modified, which means that you can't SUPPRESS if you
     47  1.1    oster  * specify USE_DAG.
     48  1.1    oster  */
     49  1.1    oster 
     50  1.3    oster #define RF_DAG_FLAGS_NONE             0	/* no flags */
     51  1.6  msaitoh #define RF_DAG_SUPPRESS_LOCKS     (1<<0)	/* suppress all stripe locks in
     52  1.3    oster 						 * the DAG */
     53  1.3    oster #define RF_DAG_NONBLOCKING_IO     (1<<3)	/* cause DoAccess to be
     54  1.3    oster 						 * non-blocking */
     55  1.3    oster #define RF_DAG_ACCESS_COMPLETE    (1<<4)	/* the access is complete */
     56  1.3    oster #define RF_DAG_DISPATCH_RETURNED  (1<<5)	/* used to handle the case
     57  1.3    oster 						 * where the dag invokes no
     58  1.3    oster 						 * I/O */
     59  1.1    oster 
     60  1.3    oster #endif				/* !_RF__RF_DAGFLAGS_H_ */
     61