root/drivers/scsi/sd.h

/* */

INCLUDED FROM

   1 /*
   2  *      sd.h Copyright (C) 1992 Drew Eckhardt 
   3  *      SCSI disk driver header file by
   4  *              Drew Eckhardt 
   5  *
   6  *      <drew@colorado.edu>
   7  *
   8  *       Modified by Eric Youngdale eric@tantalus.nrl.navy.mil to
   9  *       add scatter-gather, multiple outstanding request, and other
  10  *       enhancements.
  11  */
  12 #ifndef _SD_H
  13 #define _SD_H
  14 /*
  15     $Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/sd.h,v 1.1 1992/07/24 06:27:38 root Exp root $
  16 */
  17 
  18 #ifndef _SCSI_H
  19 #include "scsi.h"
  20 #endif
  21 
  22 #ifndef _GENDISK_H
  23 #include <linux/genhd.h>
  24 #endif
  25 
  26 /*
  27  *  This is an arbitrary constant, and may be changed to whatever
  28  *  suits your purposes.  Note that smaller will get you a few bytes
  29  *  more in kernel space if that is your thing.
  30  */
  31 
  32 extern struct hd_struct * sd;
  33 
  34 typedef struct scsi_disk {
  35     unsigned capacity;              /* size in blocks */
  36     unsigned sector_size;           /* size in bytes */
  37     Scsi_Device  *device;           
  38     unsigned char sector_bit_size;  /* sector_size = 2 to the  bit size power */
  39     unsigned char sector_bit_shift; /* power of 2 sectors per FS block */
  40     unsigned ten:1;                 /* support ten byte read / write */
  41     unsigned remap:1;               /* support remapping  */
  42     unsigned has_part_table:1;      /* has partition table */
  43 } Scsi_Disk;
  44 
  45 extern Scsi_Disk * rscsi_disks;
  46 
  47 #endif
  48 
  49 /*
  50  * Overrides for Emacs so that we follow Linus's tabbing style.
  51  * Emacs will notice this stuff at the end of the file and automatically
  52  * adjust the settings for this buffer only.  This must remain at the end
  53  * of the file.
  54  * ---------------------------------------------------------------------------
  55  * Local variables:
  56  * c-indent-level: 4
  57  * c-brace-imaginary-offset: 0
  58  * c-brace-offset: -4
  59  * c-argdecl-indent: 4
  60  * c-label-offset: -4
  61  * c-continued-statement-offset: 4
  62  * c-continued-brace-offset: 0
  63  * indent-tabs-mode: nil
  64  * tab-width: 8
  65  * End:
  66  */
  67 

/* */