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Annotation of sys/scsi/sdvar.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: sdvar.h,v 1.11 2007/06/23 19:19:49 krw Exp $  */
        !             2: /*     $NetBSD: sdvar.h,v 1.7 1998/08/17 00:49:03 mycroft Exp $        */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 1998 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by Charles M. Hannum.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. All advertising materials mentioning features or use of this software
        !            20:  *    must display the following acknowledgement:
        !            21:  *        This product includes software developed by the NetBSD
        !            22:  *        Foundation, Inc. and its contributors.
        !            23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            24:  *    contributors may be used to endorse or promote products derived
        !            25:  *    from this software without specific prior written permission.
        !            26:  *
        !            27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            37:  * POSSIBILITY OF SUCH DAMAGE.
        !            38:  */
        !            39:
        !            40: /*
        !            41:  * Originally written by Julian Elischer (julian@dialix.oz.au)
        !            42:  * for TRW Financial Systems for use under the MACH(2.5) operating system.
        !            43:  *
        !            44:  * TRW Financial Systems, in accordance with their agreement with Carnegie
        !            45:  * Mellon University, makes this software available to CMU to distribute
        !            46:  * or use in any manner that they see fit as long as this message is kept with
        !            47:  * the software. For this reason TFS also grants any other persons or
        !            48:  * organisations permission to use or modify this software.
        !            49:  *
        !            50:  * TFS supplies this software to be publicly redistributed
        !            51:  * on the understanding that TFS is not responsible for the correct
        !            52:  * functioning of this software in any circumstances.
        !            53:  *
        !            54:  * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992
        !            55:  */
        !            56:
        !            57: #define        SDRETRIES       4
        !            58:
        !            59: struct sd_softc {
        !            60:        struct device sc_dev;
        !            61:        struct disk sc_dk;
        !            62:
        !            63:        int flags;
        !            64: #define        SDF_LOCKED      0x01
        !            65: #define        SDF_WANTED      0x02
        !            66: #define        SDF_WLABEL      0x04            /* label is writable */
        !            67: #define        SDF_LABELLING   0x08            /* writing label */
        !            68: #define        SDF_ANCIENT     0x10            /* disk is ancient; for minphys */
        !            69: #define        SDF_DIRTY       0x20            /* disk is dirty; needs cache flush */
        !            70: #define        SDF_FLUSHING    0x40            /* flushing, for sddone() */
        !            71:        struct scsi_link *sc_link;      /* contains our targ, lun, etc. */
        !            72:        struct disk_parms {
        !            73:                u_long  heads;          /* number of heads */
        !            74:                u_long  cyls;           /* number of cylinders */
        !            75:                u_long  sectors;        /* number of sectors/track */
        !            76:                u_long  blksize;        /* number of bytes/sector */
        !            77:                u_long  rot_rate;       /* rotational rate, in RPM */
        !            78:                daddr64_t       disksize;       /* total number sectors */
        !            79:        } params;
        !            80:        struct buf buf_queue;
        !            81:        void *sc_sdhook;                /* our shutdown hook */
        !            82:        struct timeout sc_timeout;
        !            83: };
        !            84:
        !            85: #define        SDGP_RESULT_OK          0       /* parameters obtained */
        !            86: #define        SDGP_RESULT_OFFLINE     1       /* no media, or otherwise losing */