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  * This program is free software; you can redistribute it and/or modify it
7  * under the terms and conditions of the GNU General Public License,
8  * version 2, as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13  * more details.
14  */
15 
16 #ifndef _UAPI_LINUX_NVME_IOCTL_H
17 #define _UAPI_LINUX_NVME_IOCTL_H
18 
19 #include <linux/types.h>
20 
21 struct nvme_user_io {
22 	__u8	opcode;
23 	__u8	flags;
24 	__u16	control;
25 	__u16	nblocks;
26 	__u16	rsvd;
27 	__u64	metadata;
28 	__u64	addr;
29 	__u64	slba;
30 	__u32	dsmgmt;
31 	__u32	reftag;
32 	__u16	apptag;
33 	__u16	appmask;
34 };
35 
36 struct nvme_passthru_cmd {
37 	__u8	opcode;
38 	__u8	flags;
39 	__u16	rsvd1;
40 	__u32	nsid;
41 	__u32	cdw2;
42 	__u32	cdw3;
43 	__u64	metadata;
44 	__u64	addr;
45 	__u32	metadata_len;
46 	__u32	data_len;
47 	__u32	cdw10;
48 	__u32	cdw11;
49 	__u32	cdw12;
50 	__u32	cdw13;
51 	__u32	cdw14;
52 	__u32	cdw15;
53 	__u32	timeout_ms;
54 	__u32	result;
55 };
56 
57 #define nvme_admin_cmd nvme_passthru_cmd
58 
59 #define NVME_IOCTL_ID		_IO('N', 0x40)
60 #define NVME_IOCTL_ADMIN_CMD	_IOWR('N', 0x41, struct nvme_admin_cmd)
61 #define NVME_IOCTL_SUBMIT_IO	_IOW('N', 0x42, struct nvme_user_io)
62 #define NVME_IOCTL_IO_CMD	_IOWR('N', 0x43, struct nvme_passthru_cmd)
63 #define NVME_IOCTL_RESET	_IO('N', 0x44)
64 #define NVME_IOCTL_SUBSYS_RESET	_IO('N', 0x45)
65 #define NVME_IOCTL_RESCAN	_IO('N', 0x46)
66 
67 #endif /* _UAPI_LINUX_NVME_IOCTL_H */
68