| 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_ */ |
| 57 | |