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nvme_ioctl.h

nvme_ioctl.h 2.4 KB
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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
    2. 

  2. /*
    3. 

  3.  * Definitions for the NVM Express ioctl interface
    4. 

  4.  * Copyright (c) 2011-2014, Intel Corporation.
    5. 

  5.  */
    6. 

  6. 

  7. #ifndef _LINUX_NVME_IOCTL_H
    8. 

  8. #define _LINUX_NVME_IOCTL_H
    9. 

  9. 

  10. #include <linux/types.h>
    11. 

  11. 

  12. struct nvme_user_io {
    13. 

  13. 	__u8	opcode;
    14. 

  14. 	__u8	flags;
    15. 

  15. 	__u16	control;
    16. 

  16. 	__u16	nblocks;
    17. 

  17. 	__u16	rsvd;
    18. 

  18. 	__u64	metadata;
    19. 

  19. 	__u64	addr;
    20. 

  20. 	__u64	slba;
    21. 

  21. 	__u32	dsmgmt;
    22. 

  22. 	__u32	reftag;
    23. 

  23. 	__u16	apptag;
    24. 

  24. 	__u16	appmask;
    25. 

  25. };
    26. 

  26. 

  27. struct nvme_passthru_cmd {
    28. 

  28. 	__u8	opcode;
    29. 

  29. 	__u8	flags;
    30. 

  30. 	__u16	rsvd1;
    31. 

  31. 	__u32	nsid;
    32. 

  32. 	__u32	cdw2;
    33. 

  33. 	__u32	cdw3;
    34. 

  34. 	__u64	metadata;
    35. 

  35. 	__u64	addr;
    36. 

  36. 	__u32	metadata_len;
    37. 

  37. 	__u32	data_len;
    38. 

  38. 	__u32	cdw10;
    39. 

  39. 	__u32	cdw11;
    40. 

  40. 	__u32	cdw12;
    41. 

  41. 	__u32	cdw13;
    42. 

  42. 	__u32	cdw14;
    43. 

  43. 	__u32	cdw15;
    44. 

  44. 	__u32	timeout_ms;
    45. 

  45. 	__u32	result;
    46. 

  46. };
    47. 

  47. 

  48. struct nvme_passthru_cmd64 {
    49. 

  49. 	__u8	opcode;
    50. 

  50. 	__u8	flags;
    51. 

  51. 	__u16	rsvd1;
    52. 

  52. 	__u32	nsid;
    53. 

  53. 	__u32	cdw2;
    54. 

  54. 	__u32	cdw3;
    55. 

  55. 	__u64	metadata;
    56. 

  56. 	__u64	addr;
    57. 

  57. 	__u32	metadata_len;
    58. 

  58. 	union {
    59. 

  59. 		__u32	data_len; /* for non-vectored io */
    60. 

  60. 		__u32	vec_cnt; /* for vectored io */
    61. 

  61. 	};
    62. 

  62. 	__u32	cdw10;
    63. 

  63. 	__u32	cdw11;
    64. 

  64. 	__u32	cdw12;
    65. 

  65. 	__u32	cdw13;
    66. 

  66. 	__u32	cdw14;
    67. 

  67. 	__u32	cdw15;
    68. 

  68. 	__u32	timeout_ms;
    69. 

  69. 	__u32   rsvd2;
    70. 

  70. 	__u64	result;
    71. 

  71. };
    72. 

  72. 

  73. /* same as struct nvme_passthru_cmd64, minus the 8b result field */
    74. 

  74. struct nvme_uring_cmd {
    75. 

  75. 	__u8	opcode;
    76. 

  76. 	__u8	flags;
    77. 

  77. 	__u16	rsvd1;
    78. 

  78. 	__u32	nsid;
    79. 

  79. 	__u32	cdw2;
    80. 

  80. 	__u32	cdw3;
    81. 

  81. 	__u64	metadata;
    82. 

  82. 	__u64	addr;
    83. 

  83. 	__u32	metadata_len;
    84. 

  84. 	__u32	data_len;
    85. 

  85. 	__u32	cdw10;
    86. 

  86. 	__u32	cdw11;
    87. 

  87. 	__u32	cdw12;
    88. 

  88. 	__u32	cdw13;
    89. 

  89. 	__u32	cdw14;
    90. 

  90. 	__u32	cdw15;
    91. 

  91. 	__u32	timeout_ms;
    92. 

  92. 	__u32   rsvd2;
    93. 

  93. };
    94. 

  94. 

  95. #define nvme_admin_cmd nvme_passthru_cmd
    96. 

  96. 

  97. #define NVME_IOCTL_ID		_IO('N', 0x40)
    98. 

  98. #define NVME_IOCTL_ADMIN_CMD	_IOWR('N', 0x41, struct nvme_admin_cmd)
    99. 

  99. #define NVME_IOCTL_SUBMIT_IO	_IOW('N', 0x42, struct nvme_user_io)
    100. 

  100. #define NVME_IOCTL_IO_CMD	_IOWR('N', 0x43, struct nvme_passthru_cmd)
    101. 

  101. #define NVME_IOCTL_RESET	_IO('N', 0x44)
    102. 

  102. #define NVME_IOCTL_SUBSYS_RESET	_IO('N', 0x45)
    103. 

  103. #define NVME_IOCTL_RESCAN	_IO('N', 0x46)
    104. 

  104. #define NVME_IOCTL_ADMIN64_CMD	_IOWR('N', 0x47, struct nvme_passthru_cmd64)
    105. 

  105. #define NVME_IOCTL_IO64_CMD	_IOWR('N', 0x48, struct nvme_passthru_cmd64)
    106. 

  106. #define NVME_IOCTL_IO64_CMD_VEC	_IOWR('N', 0x49, struct nvme_passthru_cmd64)
    107. 

  107. 

  108. /* io_uring async commands: */
    109. 

  109. #define NVME_URING_CMD_IO	_IOWR('N', 0x80, struct nvme_uring_cmd)
    110. 

  110. #define NVME_URING_CMD_IO_VEC	_IOWR('N', 0x81, struct nvme_uring_cmd)
    111. 

  111. #define NVME_URING_CMD_ADMIN	_IOWR('N', 0x82, struct nvme_uring_cmd)
    112. 

  112. #define NVME_URING_CMD_ADMIN_VEC _IOWR('N', 0x83, struct nvme_uring_cmd)
    113. 

  113. 

  114. #endif /* _LINUX_NVME_IOCTL_H */
    115.