LXR linux-old/drivers/s390/block/dasd

   1/* 
   2 * File...........: linux/drivers/s390/block/dasd_diag.h
   3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
   4 * Based on.......: linux/drivers/s390/block/mdisk.h
   5 * ...............: by Hartmunt Penner <hpenner@de.ibm.com>
   6 * Bugreports.to..: <Linux390@de.ibm.com>
   7 * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
   8 *
   9 * $Revision: 1.7 $
  10 *
  11 * History of changes
  12 *
  13 */
  14
  15#define MDSK_WRITE_REQ 0x01
  16#define MDSK_READ_REQ  0x02
  17
  18#define INIT_BIO        0x00
  19#define RW_BIO          0x01
  20#define TERM_BIO        0x02
  21
  22#define DEV_CLASS_FBA   0x01
  23#define DEV_CLASS_ECKD  0x04
  24#define DEV_CLASS_CKD   0x04
  25
  26typedef struct diag_bio_t {
  27        u8 type;
  28        u8 status;
  29        u16 spare1;
  30        u32 block_number;
  31        u32 alet;
  32        u32 buffer;
  33} __attribute__ ((packed, aligned (8)))
  34
  35    diag_bio_t;
  36
  37typedef struct diag_init_io_t {
  38        u16 dev_nr;
  39        u16 spare1[11];
  40        u32 block_size;
  41        u32 offset;
  42        u32 start_block;
  43        u32 end_block;
  44        u32 spare2[6];
  45} __attribute__ ((packed, aligned (8)))
  46
  47    diag_init_io_t;
  48
  49typedef struct diag_rw_io_t {
  50        u16 dev_nr;
  51        u16 spare1[11];
  52        u8 key;
  53        u8 flags;
  54        u16 spare2;
  55        u32 block_count;
  56        u32 alet;
  57        u32 bio_list;
  58        u32 interrupt_params;
  59        u32 spare3[5];
  60} __attribute__ ((packed, aligned (8)))
  61
  62    diag_rw_io_t;
  63
  64int dasd_diag_init (void);
  65void dasd_diag_cleanup (void);
  66