rf_hist.h

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    1 /*      $NetBSD: rf_hist.h,v 1.4 2001/10/04 15:58:53 oster Exp $        */
    2 /*
    3  * rf_hist.h
    4  *
    5  * Histgram operations for RAIDframe stats
    6  */
    7 /*
    8  * Copyright (c) 1995 Carnegie-Mellon University.
    9  * All rights reserved.
   10  *
   11  * Author: Jim Zelenka
   12  *
   13  * Permission to use, copy, modify and distribute this software and
   14  * its documentation is hereby granted, provided that both the copyright
   15  * notice and this permission notice appear in all copies of the
   16  * software, derivative works or modified versions, and any portions
   17  * thereof, and that both notices appear in supporting documentation.
   18  *
   19  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   20  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
   21  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   22  *
   23  * Carnegie Mellon requests users of this software to return to
   24  *
   25  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   26  *  School of Computer Science
   27  *  Carnegie Mellon University
   28  *  Pittsburgh PA 15213-3890
   29  *
   30  * any improvements or extensions that they make and grant Carnegie the
   31  * rights to redistribute these changes.
   32  */
   33 
   34 #ifndef _RF__RF_HIST_H_
   35 #define _RF__RF_HIST_H_
   36 
   37 #include <dev/raidframe/raidframevar.h>
   38 
   39 #define RF_HIST_RESOLUTION   5
   40 #define RF_HIST_MIN_VAL      0
   41 #define RF_HIST_MAX_VAL      1000
   42 #define RF_HIST_RANGE        (RF_HIST_MAX_VAL - RF_HIST_MIN_VAL)
   43 #define RF_HIST_NUM_BUCKETS  (RF_HIST_RANGE / RF_HIST_RESOLUTION + 1)
   44 
   45 typedef RF_uint32 RF_Hist_t;
   46 
   47 #define RF_HIST_ADD(_hist_,_val_) { \
   48         RF_Hist_t val; \
   49         val = ((RF_Hist_t)(_val_)) / 1000; \
   50         if (val >= RF_HIST_MAX_VAL) \
   51                 _hist_[RF_HIST_NUM_BUCKETS-1]++; \
   52         else \
   53                 _hist_[(val - RF_HIST_MIN_VAL) / RF_HIST_RESOLUTION]++; \
   54 }
   55 
   56 #endif                          /* !_RF__RF_HIST_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/raidframe/rf_hist.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/raidframe/rf_hist.h