nvme_ioctl.h 2.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. /*
  3. * Definitions for the NVM Express ioctl interface
  4. * Copyright (c) 2011-2014, Intel Corporation.
  5. */
  6. #ifndef _LINUX_NVME_IOCTL_H
  7. #define _LINUX_NVME_IOCTL_H
  8. #include <linux/types.h>
  9. struct nvme_user_io {
  10. __u8 opcode;
  11. __u8 flags;
  12. __u16 control;
  13. __u16 nblocks;
  14. __u16 rsvd;
  15. __u64 metadata;
  16. __u64 addr;
  17. __u64 slba;
  18. __u32 dsmgmt;
  19. __u32 reftag;
  20. __u16 apptag;
  21. __u16 appmask;
  22. };
  23. struct nvme_passthru_cmd {
  24. __u8 opcode;
  25. __u8 flags;
  26. __u16 rsvd1;
  27. __u32 nsid;
  28. __u32 cdw2;
  29. __u32 cdw3;
  30. __u64 metadata;
  31. __u64 addr;
  32. __u32 metadata_len;
  33. __u32 data_len;
  34. __u32 cdw10;
  35. __u32 cdw11;
  36. __u32 cdw12;
  37. __u32 cdw13;
  38. __u32 cdw14;
  39. __u32 cdw15;
  40. __u32 timeout_ms;
  41. __u32 result;
  42. };
  43. struct nvme_passthru_cmd64 {
  44. __u8 opcode;
  45. __u8 flags;
  46. __u16 rsvd1;
  47. __u32 nsid;
  48. __u32 cdw2;
  49. __u32 cdw3;
  50. __u64 metadata;
  51. __u64 addr;
  52. __u32 metadata_len;
  53. union {
  54. __u32 data_len; /* for non-vectored io */
  55. __u32 vec_cnt; /* for vectored io */
  56. };
  57. __u32 cdw10;
  58. __u32 cdw11;
  59. __u32 cdw12;
  60. __u32 cdw13;
  61. __u32 cdw14;
  62. __u32 cdw15;
  63. __u32 timeout_ms;
  64. __u32 rsvd2;
  65. __u64 result;
  66. };
  67. /* same as struct nvme_passthru_cmd64, minus the 8b result field */
  68. struct nvme_uring_cmd {
  69. __u8 opcode;
  70. __u8 flags;
  71. __u16 rsvd1;
  72. __u32 nsid;
  73. __u32 cdw2;
  74. __u32 cdw3;
  75. __u64 metadata;
  76. __u64 addr;
  77. __u32 metadata_len;
  78. __u32 data_len;
  79. __u32 cdw10;
  80. __u32 cdw11;
  81. __u32 cdw12;
  82. __u32 cdw13;
  83. __u32 cdw14;
  84. __u32 cdw15;
  85. __u32 timeout_ms;
  86. __u32 rsvd2;
  87. };
  88. #define nvme_admin_cmd nvme_passthru_cmd
  89. #define NVME_IOCTL_ID _IO('N', 0x40)
  90. #define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
  91. #define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
  92. #define NVME_IOCTL_IO_CMD _IOWR('N', 0x43, struct nvme_passthru_cmd)
  93. #define NVME_IOCTL_RESET _IO('N', 0x44)
  94. #define NVME_IOCTL_SUBSYS_RESET _IO('N', 0x45)
  95. #define NVME_IOCTL_RESCAN _IO('N', 0x46)
  96. #define NVME_IOCTL_ADMIN64_CMD _IOWR('N', 0x47, struct nvme_passthru_cmd64)
  97. #define NVME_IOCTL_IO64_CMD _IOWR('N', 0x48, struct nvme_passthru_cmd64)
  98. #define NVME_IOCTL_IO64_CMD_VEC _IOWR('N', 0x49, struct nvme_passthru_cmd64)
  99. /* io_uring async commands: */
  100. #define NVME_URING_CMD_IO _IOWR('N', 0x80, struct nvme_uring_cmd)
  101. #define NVME_URING_CMD_IO_VEC _IOWR('N', 0x81, struct nvme_uring_cmd)
  102. #define NVME_URING_CMD_ADMIN _IOWR('N', 0x82, struct nvme_uring_cmd)
  103. #define NVME_URING_CMD_ADMIN_VEC _IOWR('N', 0x83, struct nvme_uring_cmd)
  104. #endif /* _LINUX_NVME_IOCTL_H */