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 */ 115