FreeBSD/Linux Kernel Cross Reference
sys/scsi/sdvar.h

     /*      $OpenBSD: sdvar.h,v 1.52 2020/09/23 15:24:16 krw Exp $  */
     /*      $NetBSD: sdvar.h,v 1.7 1998/08/17 00:49:03 mycroft Exp $        */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Charles M. Hannum.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * Originally written by Julian Elischer (julian@dialix.oz.au)
     * for TRW Financial Systems for use under the MACH(2.5) operating system.
     *
     * TRW Financial Systems, in accordance with their agreement with Carnegie
     * Mellon University, makes this software available to CMU to distribute
     * or use in any manner that they see fit as long as this message is kept with
     * the software. For this reason TFS also grants any other persons or
     * organisations permission to use or modify this software.
     *
     * TFS supplies this software to be publicly redistributed
     * on the understanding that TFS is not responsible for the correct
     * functioning of this software in any circumstances.
     *
     * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992
     */
    
    #ifndef _SCSI_SDVAR_H
    #define _SCSI_SDVAR_H
    
    #ifdef _KERNEL
    struct sd_softc {
            struct device           sc_dev;
            struct disk             sc_dk;
            struct bufq             sc_bufq;
    
            int                     flags;
    #define SDF_DIRTY       0x20            /* disk is dirty; needs cache flush */
    #define SDF_DYING       0x40            /* dying, when deactivated */
    #define SDF_THIN        0x01            /* disk is thin provisioned */
            struct scsi_link        *sc_link; /* contains our targ, lun, etc. */
            struct disk_parms {
                    u_int32_t       heads;          /* number of heads */
                    u_int32_t       cyls;           /* number of cylinders */
                    u_int32_t       sectors;        /* number of sectors/track */
                    u_int32_t       secsize;        /* number of bytes/sector */
                    u_int64_t       disksize;       /* total number sectors */
                    u_int32_t       unmap_sectors;  /* maximum sectors/unmap */
                    u_int32_t       unmap_descs;    /* maximum descriptors/unmap */
            } params;
    
            struct scsi_xshandler sc_xsh;
    };
    #endif /* _KERNEL */
    #endif /* _SCSI_SDVAR_H */

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