linux_nvme_ioctl.h

   1 /*
   2  * Definitions for the NVM Express ioctl interface
   3  * Copyright (c) 2011-2014, Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  */
  14
  15 #ifndef _UAPI_LINUX_NVME_IOCTL_H
  16 #define _UAPI_LINUX_NVME_IOCTL_H
  17
  18 #include <linux/types.h>
  19
  20 struct nvme_user_io {
  21         __u8    opcode;
  22         __u8    flags;
  23         __u16   control;
  24         __u16   nblocks;
  25         __u16   rsvd;
  26         __u64   metadata;
  27         __u64   addr;
  28         __u64   slba;
  29         __u32   dsmgmt;
  30         __u32   reftag;
  31         __u16   apptag;
  32         __u16   appmask;
  33 };
  34
  35 struct nvme_passthru_cmd {
  36         __u8    opcode;
  37         __u8    flags;
  38         __u16   rsvd1;
  39         __u32   nsid;
  40         __u32   cdw2;
  41         __u32   cdw3;
  42         __u64   metadata;
  43         __u64   addr;
  44         __u32   metadata_len;
  45         __u32   data_len;
  46         __u32   cdw10;
  47         __u32   cdw11;
  48         __u32   cdw12;
  49         __u32   cdw13;
  50         __u32   cdw14;
  51         __u32   cdw15;
  52         __u32   timeout_ms;
  53         __u32   result;
  54 };
  55
  56 #define nvme_admin_cmd nvme_passthru_cmd
  57
  58 #define NVME_IOCTL_ID           _IO('N', 0x40)
  59 #define NVME_IOCTL_ADMIN_CMD    _IOWR('N', 0x41, struct nvme_admin_cmd)
  60 #define NVME_IOCTL_SUBMIT_IO    _IOW('N', 0x42, struct nvme_user_io)
  61 #define NVME_IOCTL_IO_CMD       _IOWR('N', 0x43, struct nvme_passthru_cmd)
  62 #define NVME_IOCTL_RESET        _IO('N', 0x44)
  63 #define NVME_IOCTL_SUBSYS_RESET _IO('N', 0x45)
  64
  65 #endif /* _UAPI_LINUX_NVME_IOCTL_H */