/* diskmodel (version 1.0) * Authors: John Bucy, Greg Ganger * Contributors: John Griffin, Jiri Schindler, Steve Schlosser * * Copyright (c) of Carnegie Mellon University, 2001-2008. * * This software is being provided by the copyright holders under the * following license. By obtaining, using and/or copying this * software, you agree that you have read, understood, and will comply * with the following terms and conditions: * * Permission to reproduce, use, and prepare derivative works of this * software is granted provided the copyright and "No Warranty" * statements are included with all reproductions and derivative works * and associated documentation. This software may also be * redistributed without charge provided that the copyright and "No * Warranty" statements are included in all redistributions. * * NO WARRANTY. THIS SOFTWARE IS FURNISHED ON AN "AS IS" BASIS. * CARNEGIE MELLON UNIVERSITY MAKES NO WARRANTIES OF ANY KIND, EITHER * EXPRESSED OR IMPLIED AS TO THE MATTER INCLUDING, BUT NOT LIMITED * TO: WARRANTY OF FITNESS FOR PURPOSE OR MERCHANTABILITY, EXCLUSIVITY * OF RESULTS OR RESULTS OBTAINED FROM USE OF THIS SOFTWARE. CARNEGIE * MELLON UNIVERSITY DOES NOT MAKE ANY WARRANTY OF ANY KIND WITH * RESPECT TO FREEDOM FROM PATENT, TRADEMARK, OR COPYRIGHT * INFRINGEMENT.  COPYRIGHT HOLDERS WILL BEAR NO LIABILITY FOR ANY USE * OF THIS SOFTWARE OR DOCUMENTATION.   *//* * DiskSim Storage Subsystem Simulation Environment (Version 2.0) * Revision Authors: Greg Ganger * Contributors: Ross Cohen, John Griffin, Steve Schlosser * * Copyright (c) of Carnegie Mellon University, 1999. * * Permission to reproduce, use, and prepare derivative works of * this software for internal use is granted provided the copyright * and "No Warranty" statements are included with all reproductions * and derivative works. This software may also be redistributed * without charge provided that the copyright and "No Warranty" * statements are included in all redistributions. * * NO WARRANTY. THIS SOFTWARE IS FURNISHED ON AN "AS IS" BASIS. * CARNEGIE MELLON UNIVERSITY MAKES NO WARRANTIES OF ANY KIND, EITHER * EXPRESSED OR IMPLIED AS TO THE MATTER INCLUDING, BUT NOT LIMITED * TO: WARRANTY OF FITNESS FOR PURPOSE OR MERCHANTABILITY, EXCLUSIVITY * OF RESULTS OR RESULTS OBTAINED FROM USE OF THIS SOFTWARE. CARNEGIE * MELLON UNIVERSITY DOES NOT MAKE ANY WARRANTY OF ANY KIND WITH RESPECT * TO FREEDOM FROM PATENT, TRADEMARK, OR COPYRIGHT INFRINGEMENT. *//* * DiskSim Storage Subsystem Simulation Environment * Authors: Greg Ganger, Bruce Worthington, Yale Patt * * Copyright (C) 1993, 1995, 1997 The Regents of the University of Michigan  * * This software is being provided by the copyright holders under the * following license. By obtaining, using and/or copying this software, * you agree that you have read, understood, and will comply with the * following terms and conditions: * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose and without fee or royalty is * hereby granted, provided that the full text of this NOTICE appears on * ALL copies of the software and documentation or portions thereof, * including modifications, that you make. * * THIS SOFTWARE IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE NO * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE, * BUT NOT LIMITATION, COPYRIGHT HOLDERS MAKE NO REPRESENTATIONS OR * WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR * THAT THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY * THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS. COPYRIGHT * HOLDERS WILL BEAR NO LIABILITY FOR ANY USE OF THIS SOFTWARE OR * DOCUMENTATION. * *  This software is provided AS IS, WITHOUT REPRESENTATION FROM THE * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER * EXPRESSED OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE REGENTS * OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE LIABLE FOR ANY DAMAGES, * INCLUDING SPECIAL , INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, * WITH RESPECT TO ANY CLAIM ARISING OUT OF OR IN CONNECTION WITH THE * USE OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN IF IT HAS * BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH DAMAGES * * The names and trademarks of copyright holders or authors may NOT be * used in advertising or publicity pertaining to the software without * specific, written prior permission. Title to copyright in this software * and any associated documentation will at all times remain with copyright * holders. */#ifndef _DM_MECH_H#define _DM_MECH_H#include "dm.h"// Seek types typedef enum {  SEEK_CONST,                          SEEK_3PT_LINE,                SEEK_3PT_CURVE,                  SEEK_HPL,  SEEK_1ST10_PLUS_HPL,  SEEK_EXTRACTED} disk_seek_t;#define DM_MECH_G1_MAX_SEEK SEEK_EXTRACTED// Latency typestypedef enum {  AVGROTATE               = -1,  SKEWED_FOR_TRACK_SWITCH = -2,  NON_SKEWED              = -3} disk_latency_t;typedef dm_time_t(*dm_mech_g1_seekfn)(struct dm_disk_if *d,				      struct dm_mech_state *begin,				      struct dm_mech_state *end,				      int rw);struct dm_mech_g1 {  struct dm_mech_if hdr;  // a seek time function  dm_mech_g1_seekfn seekfn;  struct dm_disk_if *disk; // back pointer to disk this goes with  //  // Seek Time related  //  // comes from "Constant access time" and "Access time type"  dm_time_t       acctime;  disk_seek_t  seektype;  // "Constant seek time"  dm_time_t       seektime;  // single cylinder seek  dm_time_t       seekone; // only used by non-extracted algs  // average seek time  dm_time_t       seekavg;  // full stroke seek time  dm_time_t       seekfull; // only used by non-extracted algs  // extra settling time for writes  dm_time_t       seekwritedelta;  int             hpseek_v1; // v_1 from hpl seek equation (is in cyls)  dm_time_t       hpseek[6]; // v_2..v_6 .. in 1..6 (0 not used)  dm_time_t       first10seeks[10];  // extracted seek curve  int	        xseekcnt;  int          *xseekdists;  dm_time_t    *xseektimes;  dm_time_t       headswitch;  // if positive, latency in msecs, otherwise   // values from latency_t  disk_latency_t  latency;  dm_time_t       rotatetime;  uint64_t        rpmerr;  uint64_t        rpm;  // zero-latency io parameters  int		immedread;  int		immedwrite;  int		immed;  // "Bulk sector transfer time"  dm_time_t     blktranstime;};    extern struct dm_mech_if dm_mech_g1;#endif // _DM_MECH_H