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dasd_diag.h

dasd_diag.h 2.4 KB
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  1. /*
    2. 

  2.  * File...........: linux/drivers/s390/block/dasd_diag.h
    3. 

  3.  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
    4. 

  4.  * Based on.......: linux/drivers/s390/block/mdisk.h
    5. 

  5.  * ...............: by Hartmunt Penner <hpenner@de.ibm.com>
    6. 

  6.  * Bugreports.to..: <Linux390@de.ibm.com>
    7. 

  7.  * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
    8. 

  8.  *
    9. 

  9.  */
    10. 

  10. 

  11. #define MDSK_WRITE_REQ 0x01
    12. 

  12. #define MDSK_READ_REQ  0x02
    13. 

  13. 

  14. #define INIT_BIO	0x00
    15. 

  15. #define RW_BIO		0x01
    16. 

  16. #define TERM_BIO	0x02
    17. 

  17. 

  18. #define DEV_CLASS_FBA	0x01
    19. 

  19. #define DEV_CLASS_ECKD	0x04
    20. 

  20. 

  21. #define DASD_DIAG_CODE_31BIT		0x03
    22. 

  22. #define DASD_DIAG_CODE_64BIT		0x07
    23. 

  23. 

  24. #define DASD_DIAG_RWFLAG_ASYNC		0x02
    25. 

  25. #define DASD_DIAG_RWFLAG_NOCACHE	0x01
    26. 

  26. 

  27. #define DASD_DIAG_FLAGA_FORMAT_64BIT	0x80
    28. 

  28. 

  29. struct dasd_diag_characteristics {
    30. 

  30. 	u16 dev_nr;
    31. 

  31. 	u16 rdc_len;
    32. 

  32. 	u8 vdev_class;
    33. 

  33. 	u8 vdev_type;
    34. 

  34. 	u8 vdev_status;
    35. 

  35. 	u8 vdev_flags;
    36. 

  36. 	u8 rdev_class;
    37. 

  37. 	u8 rdev_type;
    38. 

  38. 	u8 rdev_model;
    39. 

  39. 	u8 rdev_features;
    40. 

  40. } __attribute__ ((packed, aligned(4)));
    41. 

  41. 

  42. 

  43. #ifdef CONFIG_64BIT
    44. 

  44. #define DASD_DIAG_FLAGA_DEFAULT		DASD_DIAG_FLAGA_FORMAT_64BIT
    45. 

  45. 

  46. typedef u64 blocknum_t;
    47. 

  47. typedef s64 sblocknum_t;
    48. 

  48. 

  49. struct dasd_diag_bio {
    50. 

  50. 	u8 type;
    51. 

  51. 	u8 status;
    52. 

  52. 	u8 spare1[2];
    53. 

  53. 	u32 alet;
    54. 

  54. 	blocknum_t block_number;
    55. 

  55. 	void *buffer;
    56. 

  56. } __attribute__ ((packed, aligned(8)));
    57. 

  57. 

  58. struct dasd_diag_init_io {
    59. 

  59. 	u16 dev_nr;
    60. 

  60. 	u8 flaga;
    61. 

  61. 	u8 spare1[21];
    62. 

  62. 	u32 block_size;
    63. 

  63. 	u8 spare2[4];
    64. 

  64. 	blocknum_t offset;
    65. 

  65. 	sblocknum_t start_block;
    66. 

  66. 	blocknum_t end_block;
    67. 

  67. 	u8  spare3[8];
    68. 

  68. } __attribute__ ((packed, aligned(8)));
    69. 

  69. 

  70. struct dasd_diag_rw_io {
    71. 

  71. 	u16 dev_nr;
    72. 

  72. 	u8  flaga;
    73. 

  73. 	u8  spare1[21];
    74. 

  74. 	u8  key;
    75. 

  75. 	u8  flags;
    76. 

  76. 	u8  spare2[2];
    77. 

  77. 	u32 block_count;
    78. 

  78. 	u32 alet;
    79. 

  79. 	u8  spare3[4];
    80. 

  80. 	u64 interrupt_params;
    81. 

  81. 	struct dasd_diag_bio *bio_list;
    82. 

  82. 	u8  spare4[8];
    83. 

  83. } __attribute__ ((packed, aligned(8)));
    84. 

  84. #else /* CONFIG_64BIT */
    85. 

  85. #define DASD_DIAG_FLAGA_DEFAULT		0x0
    86. 

  86. 

  87. typedef u32 blocknum_t;
    88. 

  88. typedef s32 sblocknum_t;
    89. 

  89. 

  90. struct dasd_diag_bio {
    91. 

  91. 	u8 type;
    92. 

  92. 	u8 status;
    93. 

  93. 	u16 spare1;
    94. 

  94. 	blocknum_t block_number;
    95. 

  95. 	u32 alet;
    96. 

  96. 	void *buffer;
    97. 

  97. } __attribute__ ((packed, aligned(8)));
    98. 

  98. 

  99. struct dasd_diag_init_io {
    100. 

  100. 	u16 dev_nr;
    101. 

  101. 	u8 flaga;
    102. 

  102. 	u8 spare1[21];
    103. 

  103. 	u32 block_size;
    104. 

  104. 	blocknum_t offset;
    105. 

  105. 	sblocknum_t start_block;
    106. 

  106. 	blocknum_t end_block;
    107. 

  107. 	u8 spare2[24];
    108. 

  108. } __attribute__ ((packed, aligned(8)));
    109. 

  109. 

  110. struct dasd_diag_rw_io {
    111. 

  111. 	u16 dev_nr;
    112. 

  112. 	u8 flaga;
    113. 

  113. 	u8 spare1[21];
    114. 

  114. 	u8 key;
    115. 

  115. 	u8 flags;
    116. 

  116. 	u8 spare2[2];
    117. 

  117. 	u32 block_count;
    118. 

  118. 	u32 alet;
    119. 

  119. 	struct dasd_diag_bio *bio_list;
    120. 

  120. 	u32 interrupt_params;
    121. 

  121. 	u8 spare3[20];
    122. 

  122. } __attribute__ ((packed, aligned(8)));
    123. 

  123. #endif /* CONFIG_64BIT */
    124. 

  124.