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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 | ||
7 | #ifndef _LINUX_NVME_IOCTL_H | |
8 | #define _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 /* _LINUX_NVME_IOCTL_H */ |