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
7 #ifndef _UAPI_LINUX_NVME_IOCTL_H
8 #define _UAPI_LINUX_NVME_IOCTL_H
9
10 #include <linux/types.h>
11
12 struct nvme_user_io {
13 __u8 opcode;
14 __u8 flags;
15 __u16 control;
16 __u16 nblocks;
17 __u16 rsvd;
18 __u64 metadata;
19 __u64 addr;
20 __u64 slba;
21 __u32 dsmgmt;
22 __u32 reftag;
23 __u16 apptag;
24 __u16 appmask;
25 };
26
27 struct nvme_passthru_cmd {
28 __u8 opcode;
29 __u8 flags;
30 __u16 rsvd1;
31 __u32 nsid;
32 __u32 cdw2;
33 __u32 cdw3;
34 __u64 metadata;
35 __u64 addr;
36 __u32 metadata_len;
37 __u32 data_len;
38 __u32 cdw10;
39 __u32 cdw11;
40 __u32 cdw12;
41 __u32 cdw13;
42 __u32 cdw14;
43 __u32 cdw15;
44 __u32 timeout_ms;
45 __u32 result;
46 };
47
48 struct nvme_passthru_cmd64 {
49 __u8 opcode;
50 __u8 flags;
51 __u16 rsvd1;
52 __u32 nsid;
53 __u32 cdw2;
54 __u32 cdw3;
55 __u64 metadata;
56 __u64 addr;
57 __u32 metadata_len;
58 union {
59 __u32 data_len; /* for non-vectored io */
60 __u32 vec_cnt; /* for vectored io */
61 };
62 __u32 cdw10;
63 __u32 cdw11;
64 __u32 cdw12;
65 __u32 cdw13;
66 __u32 cdw14;
67 __u32 cdw15;
68 __u32 timeout_ms;
69 __u32 rsvd2;
70 __u64 result;
71 };
72
73 /* same as struct nvme_passthru_cmd64, minus the 8b result field */
74 struct nvme_uring_cmd {
75 __u8 opcode;
76 __u8 flags;
77 __u16 rsvd1;
78 __u32 nsid;
79 __u32 cdw2;
80 __u32 cdw3;
81 __u64 metadata;
82 __u64 addr;
83 __u32 metadata_len;
84 __u32 data_len;
85 __u32 cdw10;
86 __u32 cdw11;
87 __u32 cdw12;
88 __u32 cdw13;
89 __u32 cdw14;
90 __u32 cdw15;
91 __u32 timeout_ms;
92 __u32 rsvd2;
93 };
94
95 #define nvme_admin_cmd nvme_passthru_cmd
96
97 #define NVME_IOCTL_ID _IO('N', 0x40)
98 #define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
99 #define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
100 #define NVME_IOCTL_IO_CMD _IOWR('N', 0x43, struct nvme_passthru_cmd)
101 #define NVME_IOCTL_RESET _IO('N', 0x44)
102 #define NVME_IOCTL_SUBSYS_RESET _IO('N', 0x45)
103 #define NVME_IOCTL_RESCAN _IO('N', 0x46)
104 #define NVME_IOCTL_ADMIN64_CMD _IOWR('N', 0x47, struct nvme_passthru_cmd64)
105 #define NVME_IOCTL_IO64_CMD _IOWR('N', 0x48, struct nvme_passthru_cmd64)
106 #define NVME_IOCTL_IO64_CMD_VEC _IOWR('N', 0x49, struct nvme_passthru_cmd64)
107
108 /* io_uring async commands: */
109 #define NVME_URING_CMD_IO _IOWR('N', 0x80, struct nvme_uring_cmd)
110 #define NVME_URING_CMD_IO_VEC _IOWR('N', 0x81, struct nvme_uring_cmd)
111 #define NVME_URING_CMD_ADMIN _IOWR('N', 0x82, struct nvme_uring_cmd)
112 #define NVME_URING_CMD_ADMIN_VEC _IOWR('N', 0x83, struct nvme_uring_cmd)
113
114 #endif /* _UAPI_LINUX_NVME_IOCTL_H */
115
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