Merge branch 'for-4.4/drivers' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "Here are the block driver changes for 4.4.  This pull request
  contains:

   - NVMe:
        - Refactor and moving of code to prepare for proper target
          support. From Christoph and Jay.

        - 32-bit nvme warning fix from Arnd.

        - Error initialization fix from me.

        - Proper namespace removal and reference counting support from
          Keith.

        - Device resume fix on IO failure, also from Keith.

        - Dependency fix from Keith, now that nvme isn't under the
          umbrella of the block anymore.

        - Target location and maintainers update from Jay.

   - From Ming Lei, the long awaited DIO/AIO support for loop.

   - Enable BD-RE writeable opens, from Georgios"

* 'for-4.4/drivers' of git://git.kernel.dk/linux-block: (24 commits)
  Update target repo for nvme patch contributions
  NVMe: initialize error to '0'
  nvme: use an integer value to Linux errno values
  nvme: fix 32-bit build warning
  NVMe: Add explicit block config dependency
  nvme: include <linux/types.ĥ> in <linux/nvme.h>
  nvme: move to a new drivers/nvme/host directory
  nvme.h: add missing nvme_id_ctrl endianess annotations
  nvme: move hardware structures out of the uapi version of nvme.h
  nvme: add a local nvme.h header
  nvme: properly handle partially initialized queues in nvme_create_io_queues
  nvme: merge nvme_dev_start, nvme_dev_resume and nvme_async_probe
  nvme: factor reset code into a common helper
  nvme: merge nvme_dev_reset into nvme_reset_failed_dev
  nvme: delete dev from dev_list in nvme_reset
  NVMe: Simplify device resume on io queue failure
  NVMe: Namespace removal simplifications
  NVMe: Reference count open namespaces
  cdrom: Random writing support for BD-RE media
  block: loop: support DIO & AIO
  ...

3 files changed, 67 insertions, 589 deletions

diff --git a/include/uapi/linux/loop.h b/include/uapi/linux/loop.h
index e0cecd2eabdc..c8125ec1f4f2 100644
--- a/include/uapi/linux/loop.h
+++ b/include/uapi/linux/loop.h
@@ -21,6 +21,7 @@ enum {
 	LO_FLAGS_READ_ONLY	= 1,
 	LO_FLAGS_AUTOCLEAR	= 4,
 	LO_FLAGS_PARTSCAN	= 8,
+	LO_FLAGS_DIRECT_IO	= 16,
 };
 
 #include <asm/posix_types.h>	/* for __kernel_old_dev_t */
@@ -86,6 +87,7 @@ struct loop_info64 {
 #define LOOP_GET_STATUS64	0x4C05
 #define LOOP_CHANGE_FD		0x4C06
 #define LOOP_SET_CAPACITY	0x4C07
+#define LOOP_SET_DIRECT_IO	0x4C08
 
 /* /dev/loop-control interface */
 #define LOOP_CTL_ADD		0x4C80
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
deleted file mode 100644
index 8864194a4151..000000000000
--- a/include/uapi/linux/nvme.h
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
- * Definitions for the NVM Express interface
- * Copyright (c) 2011-2014, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- */
-
-#ifndef _UAPI_LINUX_NVME_H
-#define _UAPI_LINUX_NVME_H
-
-#include <linux/types.h>
-
-struct nvme_id_power_state {
-	__le16			max_power;	/* centiwatts */
-	__u8			rsvd2;
-	__u8			flags;
-	__le32			entry_lat;	/* microseconds */
-	__le32			exit_lat;	/* microseconds */
-	__u8			read_tput;
-	__u8			read_lat;
-	__u8			write_tput;
-	__u8			write_lat;
-	__le16			idle_power;
-	__u8			idle_scale;
-	__u8			rsvd19;
-	__le16			active_power;
-	__u8			active_work_scale;
-	__u8			rsvd23[9];
-};
-
-enum {
-	NVME_PS_FLAGS_MAX_POWER_SCALE	= 1 << 0,
-	NVME_PS_FLAGS_NON_OP_STATE	= 1 << 1,
-};
-
-struct nvme_id_ctrl {
-	__le16			vid;
-	__le16			ssvid;
-	char			sn[20];
-	char			mn[40];
-	char			fr[8];
-	__u8			rab;
-	__u8			ieee[3];
-	__u8			mic;
-	__u8			mdts;
-	__u16			cntlid;
-	__u32			ver;
-	__u8			rsvd84[172];
-	__le16			oacs;
-	__u8			acl;
-	__u8			aerl;
-	__u8			frmw;
-	__u8			lpa;
-	__u8			elpe;
-	__u8			npss;
-	__u8			avscc;
-	__u8			apsta;
-	__le16			wctemp;
-	__le16			cctemp;
-	__u8			rsvd270[242];
-	__u8			sqes;
-	__u8			cqes;
-	__u8			rsvd514[2];
-	__le32			nn;
-	__le16			oncs;
-	__le16			fuses;
-	__u8			fna;
-	__u8			vwc;
-	__le16			awun;
-	__le16			awupf;
-	__u8			nvscc;
-	__u8			rsvd531;
-	__le16			acwu;
-	__u8			rsvd534[2];
-	__le32			sgls;
-	__u8			rsvd540[1508];
-	struct nvme_id_power_state	psd[32];
-	__u8			vs[1024];
-};
-
-enum {
-	NVME_CTRL_ONCS_COMPARE			= 1 << 0,
-	NVME_CTRL_ONCS_WRITE_UNCORRECTABLE	= 1 << 1,
-	NVME_CTRL_ONCS_DSM			= 1 << 2,
-	NVME_CTRL_VWC_PRESENT			= 1 << 0,
-};
-
-struct nvme_lbaf {
-	__le16			ms;
-	__u8			ds;
-	__u8			rp;
-};
-
-struct nvme_id_ns {
-	__le64			nsze;
-	__le64			ncap;
-	__le64			nuse;
-	__u8			nsfeat;
-	__u8			nlbaf;
-	__u8			flbas;
-	__u8			mc;
-	__u8			dpc;
-	__u8			dps;
-	__u8			nmic;
-	__u8			rescap;
-	__u8			fpi;
-	__u8			rsvd33;
-	__le16			nawun;
-	__le16			nawupf;
-	__le16			nacwu;
-	__le16			nabsn;
-	__le16			nabo;
-	__le16			nabspf;
-	__u16			rsvd46;
-	__le64			nvmcap[2];
-	__u8			rsvd64[40];
-	__u8			nguid[16];
-	__u8			eui64[8];
-	struct nvme_lbaf	lbaf[16];
-	__u8			rsvd192[192];
-	__u8			vs[3712];
-};
-
-enum {
-	NVME_NS_FEAT_THIN	= 1 << 0,
-	NVME_NS_FLBAS_LBA_MASK	= 0xf,
-	NVME_NS_FLBAS_META_EXT	= 0x10,
-	NVME_LBAF_RP_BEST	= 0,
-	NVME_LBAF_RP_BETTER	= 1,
-	NVME_LBAF_RP_GOOD	= 2,
-	NVME_LBAF_RP_DEGRADED	= 3,
-	NVME_NS_DPC_PI_LAST	= 1 << 4,
-	NVME_NS_DPC_PI_FIRST	= 1 << 3,
-	NVME_NS_DPC_PI_TYPE3	= 1 << 2,
-	NVME_NS_DPC_PI_TYPE2	= 1 << 1,
-	NVME_NS_DPC_PI_TYPE1	= 1 << 0,
-	NVME_NS_DPS_PI_FIRST	= 1 << 3,
-	NVME_NS_DPS_PI_MASK	= 0x7,
-	NVME_NS_DPS_PI_TYPE1	= 1,
-	NVME_NS_DPS_PI_TYPE2	= 2,
-	NVME_NS_DPS_PI_TYPE3	= 3,
-};
-
-struct nvme_smart_log {
-	__u8			critical_warning;
-	__u8			temperature[2];
-	__u8			avail_spare;
-	__u8			spare_thresh;
-	__u8			percent_used;
-	__u8			rsvd6[26];
-	__u8			data_units_read[16];
-	__u8			data_units_written[16];
-	__u8			host_reads[16];
-	__u8			host_writes[16];
-	__u8			ctrl_busy_time[16];
-	__u8			power_cycles[16];
-	__u8			power_on_hours[16];
-	__u8			unsafe_shutdowns[16];
-	__u8			media_errors[16];
-	__u8			num_err_log_entries[16];
-	__le32			warning_temp_time;
-	__le32			critical_comp_time;
-	__le16			temp_sensor[8];
-	__u8			rsvd216[296];
-};
-
-enum {
-	NVME_SMART_CRIT_SPARE		= 1 << 0,
-	NVME_SMART_CRIT_TEMPERATURE	= 1 << 1,
-	NVME_SMART_CRIT_RELIABILITY	= 1 << 2,
-	NVME_SMART_CRIT_MEDIA		= 1 << 3,
-	NVME_SMART_CRIT_VOLATILE_MEMORY	= 1 << 4,
-};
-
-enum {
-	NVME_AER_NOTICE_NS_CHANGED	= 0x0002,
-};
-
-struct nvme_lba_range_type {
-	__u8			type;
-	__u8			attributes;
-	__u8			rsvd2[14];
-	__u64			slba;
-	__u64			nlb;
-	__u8			guid[16];
-	__u8			rsvd48[16];
-};
-
-enum {
-	NVME_LBART_TYPE_FS	= 0x01,
-	NVME_LBART_TYPE_RAID	= 0x02,
-	NVME_LBART_TYPE_CACHE	= 0x03,
-	NVME_LBART_TYPE_SWAP	= 0x04,
-
-	NVME_LBART_ATTRIB_TEMP	= 1 << 0,
-	NVME_LBART_ATTRIB_HIDE	= 1 << 1,
-};
-
-struct nvme_reservation_status {
-	__le32	gen;
-	__u8	rtype;
-	__u8	regctl[2];
-	__u8	resv5[2];
-	__u8	ptpls;
-	__u8	resv10[13];
-	struct {
-		__le16	cntlid;
-		__u8	rcsts;
-		__u8	resv3[5];
-		__le64	hostid;
-		__le64	rkey;
-	} regctl_ds[];
-};
-
-/* I/O commands */
-
-enum nvme_opcode {
-	nvme_cmd_flush		= 0x00,
-	nvme_cmd_write		= 0x01,
-	nvme_cmd_read		= 0x02,
-	nvme_cmd_write_uncor	= 0x04,
-	nvme_cmd_compare	= 0x05,
-	nvme_cmd_write_zeroes	= 0x08,
-	nvme_cmd_dsm		= 0x09,
-	nvme_cmd_resv_register	= 0x0d,
-	nvme_cmd_resv_report	= 0x0e,
-	nvme_cmd_resv_acquire	= 0x11,
-	nvme_cmd_resv_release	= 0x15,
-};
-
-struct nvme_common_command {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__le32			nsid;
-	__le32			cdw2[2];
-	__le64			metadata;
-	__le64			prp1;
-	__le64			prp2;
-	__le32			cdw10[6];
-};
-
-struct nvme_rw_command {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__le32			nsid;
-	__u64			rsvd2;
-	__le64			metadata;
-	__le64			prp1;
-	__le64			prp2;
-	__le64			slba;
-	__le16			length;
-	__le16			control;
-	__le32			dsmgmt;
-	__le32			reftag;
-	__le16			apptag;
-	__le16			appmask;
-};
-
-enum {
-	NVME_RW_LR			= 1 << 15,
-	NVME_RW_FUA			= 1 << 14,
-	NVME_RW_DSM_FREQ_UNSPEC		= 0,
-	NVME_RW_DSM_FREQ_TYPICAL	= 1,
-	NVME_RW_DSM_FREQ_RARE		= 2,
-	NVME_RW_DSM_FREQ_READS		= 3,
-	NVME_RW_DSM_FREQ_WRITES		= 4,
-	NVME_RW_DSM_FREQ_RW		= 5,
-	NVME_RW_DSM_FREQ_ONCE		= 6,
-	NVME_RW_DSM_FREQ_PREFETCH	= 7,
-	NVME_RW_DSM_FREQ_TEMP		= 8,
-	NVME_RW_DSM_LATENCY_NONE	= 0 << 4,
-	NVME_RW_DSM_LATENCY_IDLE	= 1 << 4,
-	NVME_RW_DSM_LATENCY_NORM	= 2 << 4,
-	NVME_RW_DSM_LATENCY_LOW		= 3 << 4,
-	NVME_RW_DSM_SEQ_REQ		= 1 << 6,
-	NVME_RW_DSM_COMPRESSED		= 1 << 7,
-	NVME_RW_PRINFO_PRCHK_REF	= 1 << 10,
-	NVME_RW_PRINFO_PRCHK_APP	= 1 << 11,
-	NVME_RW_PRINFO_PRCHK_GUARD	= 1 << 12,
-	NVME_RW_PRINFO_PRACT		= 1 << 13,
-};
-
-struct nvme_dsm_cmd {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__le32			nsid;
-	__u64			rsvd2[2];
-	__le64			prp1;
-	__le64			prp2;
-	__le32			nr;
-	__le32			attributes;
-	__u32			rsvd12[4];
-};
-
-enum {
-	NVME_DSMGMT_IDR		= 1 << 0,
-	NVME_DSMGMT_IDW		= 1 << 1,
-	NVME_DSMGMT_AD		= 1 << 2,
-};
-
-struct nvme_dsm_range {
-	__le32			cattr;
-	__le32			nlb;
-	__le64			slba;
-};
-
-/* Admin commands */
-
-enum nvme_admin_opcode {
-	nvme_admin_delete_sq		= 0x00,
-	nvme_admin_create_sq		= 0x01,
-	nvme_admin_get_log_page		= 0x02,
-	nvme_admin_delete_cq		= 0x04,
-	nvme_admin_create_cq		= 0x05,
-	nvme_admin_identify		= 0x06,
-	nvme_admin_abort_cmd		= 0x08,
-	nvme_admin_set_features		= 0x09,
-	nvme_admin_get_features		= 0x0a,
-	nvme_admin_async_event		= 0x0c,
-	nvme_admin_activate_fw		= 0x10,
-	nvme_admin_download_fw		= 0x11,
-	nvme_admin_format_nvm		= 0x80,
-	nvme_admin_security_send	= 0x81,
-	nvme_admin_security_recv	= 0x82,
-};
-
-enum {
-	NVME_QUEUE_PHYS_CONTIG	= (1 << 0),
-	NVME_CQ_IRQ_ENABLED	= (1 << 1),
-	NVME_SQ_PRIO_URGENT	= (0 << 1),
-	NVME_SQ_PRIO_HIGH	= (1 << 1),
-	NVME_SQ_PRIO_MEDIUM	= (2 << 1),
-	NVME_SQ_PRIO_LOW	= (3 << 1),
-	NVME_FEAT_ARBITRATION	= 0x01,
-	NVME_FEAT_POWER_MGMT	= 0x02,
-	NVME_FEAT_LBA_RANGE	= 0x03,
-	NVME_FEAT_TEMP_THRESH	= 0x04,
-	NVME_FEAT_ERR_RECOVERY	= 0x05,
-	NVME_FEAT_VOLATILE_WC	= 0x06,
-	NVME_FEAT_NUM_QUEUES	= 0x07,
-	NVME_FEAT_IRQ_COALESCE	= 0x08,
-	NVME_FEAT_IRQ_CONFIG	= 0x09,
-	NVME_FEAT_WRITE_ATOMIC	= 0x0a,
-	NVME_FEAT_ASYNC_EVENT	= 0x0b,
-	NVME_FEAT_AUTO_PST	= 0x0c,
-	NVME_FEAT_SW_PROGRESS	= 0x80,
-	NVME_FEAT_HOST_ID	= 0x81,
-	NVME_FEAT_RESV_MASK	= 0x82,
-	NVME_FEAT_RESV_PERSIST	= 0x83,
-	NVME_LOG_ERROR		= 0x01,
-	NVME_LOG_SMART		= 0x02,
-	NVME_LOG_FW_SLOT	= 0x03,
-	NVME_LOG_RESERVATION	= 0x80,
-	NVME_FWACT_REPL		= (0 << 3),
-	NVME_FWACT_REPL_ACTV	= (1 << 3),
-	NVME_FWACT_ACTV		= (2 << 3),
-};
-
-struct nvme_identify {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__le32			nsid;
-	__u64			rsvd2[2];
-	__le64			prp1;
-	__le64			prp2;
-	__le32			cns;
-	__u32			rsvd11[5];
-};
-
-struct nvme_features {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__le32			nsid;
-	__u64			rsvd2[2];
-	__le64			prp1;
-	__le64			prp2;
-	__le32			fid;
-	__le32			dword11;
-	__u32			rsvd12[4];
-};
-
-struct nvme_create_cq {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__u32			rsvd1[5];
-	__le64			prp1;
-	__u64			rsvd8;
-	__le16			cqid;
-	__le16			qsize;
-	__le16			cq_flags;
-	__le16			irq_vector;
-	__u32			rsvd12[4];
-};
-
-struct nvme_create_sq {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__u32			rsvd1[5];
-	__le64			prp1;
-	__u64			rsvd8;
-	__le16			sqid;
-	__le16			qsize;
-	__le16			sq_flags;
-	__le16			cqid;
-	__u32			rsvd12[4];
-};
-
-struct nvme_delete_queue {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__u32			rsvd1[9];
-	__le16			qid;
-	__u16			rsvd10;
-	__u32			rsvd11[5];
-};
-
-struct nvme_abort_cmd {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__u32			rsvd1[9];
-	__le16			sqid;
-	__u16			cid;
-	__u32			rsvd11[5];
-};
-
-struct nvme_download_firmware {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__u32			rsvd1[5];
-	__le64			prp1;
-	__le64			prp2;
-	__le32			numd;
-	__le32			offset;
-	__u32			rsvd12[4];
-};
-
-struct nvme_format_cmd {
-	__u8			opcode;
-	__u8			flags;
-	__u16			command_id;
-	__le32			nsid;
-	__u64			rsvd2[4];
-	__le32			cdw10;
-	__u32			rsvd11[5];
-};
-
-struct nvme_command {
-	union {
-		struct nvme_common_command common;
-		struct nvme_rw_command rw;
-		struct nvme_identify identify;
-		struct nvme_features features;
-		struct nvme_create_cq create_cq;
-		struct nvme_create_sq create_sq;
-		struct nvme_delete_queue delete_queue;
-		struct nvme_download_firmware dlfw;
-		struct nvme_format_cmd format;
-		struct nvme_dsm_cmd dsm;
-		struct nvme_abort_cmd abort;
-	};
-};
-
-enum {
-	NVME_SC_SUCCESS			= 0x0,
-	NVME_SC_INVALID_OPCODE		= 0x1,
-	NVME_SC_INVALID_FIELD		= 0x2,
-	NVME_SC_CMDID_CONFLICT		= 0x3,
-	NVME_SC_DATA_XFER_ERROR		= 0x4,
-	NVME_SC_POWER_LOSS		= 0x5,
-	NVME_SC_INTERNAL		= 0x6,
-	NVME_SC_ABORT_REQ		= 0x7,
-	NVME_SC_ABORT_QUEUE		= 0x8,
-	NVME_SC_FUSED_FAIL		= 0x9,
-	NVME_SC_FUSED_MISSING		= 0xa,
-	NVME_SC_INVALID_NS		= 0xb,
-	NVME_SC_CMD_SEQ_ERROR		= 0xc,
-	NVME_SC_SGL_INVALID_LAST	= 0xd,
-	NVME_SC_SGL_INVALID_COUNT	= 0xe,
-	NVME_SC_SGL_INVALID_DATA	= 0xf,
-	NVME_SC_SGL_INVALID_METADATA	= 0x10,
-	NVME_SC_SGL_INVALID_TYPE	= 0x11,
-	NVME_SC_LBA_RANGE		= 0x80,
-	NVME_SC_CAP_EXCEEDED		= 0x81,
-	NVME_SC_NS_NOT_READY		= 0x82,
-	NVME_SC_RESERVATION_CONFLICT	= 0x83,
-	NVME_SC_CQ_INVALID		= 0x100,
-	NVME_SC_QID_INVALID		= 0x101,
-	NVME_SC_QUEUE_SIZE		= 0x102,
-	NVME_SC_ABORT_LIMIT		= 0x103,
-	NVME_SC_ABORT_MISSING		= 0x104,
-	NVME_SC_ASYNC_LIMIT		= 0x105,
-	NVME_SC_FIRMWARE_SLOT		= 0x106,
-	NVME_SC_FIRMWARE_IMAGE		= 0x107,
-	NVME_SC_INVALID_VECTOR		= 0x108,
-	NVME_SC_INVALID_LOG_PAGE	= 0x109,
-	NVME_SC_INVALID_FORMAT		= 0x10a,
-	NVME_SC_FIRMWARE_NEEDS_RESET	= 0x10b,
-	NVME_SC_INVALID_QUEUE		= 0x10c,
-	NVME_SC_FEATURE_NOT_SAVEABLE	= 0x10d,
-	NVME_SC_FEATURE_NOT_CHANGEABLE	= 0x10e,
-	NVME_SC_FEATURE_NOT_PER_NS	= 0x10f,
-	NVME_SC_FW_NEEDS_RESET_SUBSYS	= 0x110,
-	NVME_SC_BAD_ATTRIBUTES		= 0x180,
-	NVME_SC_INVALID_PI		= 0x181,
-	NVME_SC_READ_ONLY		= 0x182,
-	NVME_SC_WRITE_FAULT		= 0x280,
-	NVME_SC_READ_ERROR		= 0x281,
-	NVME_SC_GUARD_CHECK		= 0x282,
-	NVME_SC_APPTAG_CHECK		= 0x283,
-	NVME_SC_REFTAG_CHECK		= 0x284,
-	NVME_SC_COMPARE_FAILED		= 0x285,
-	NVME_SC_ACCESS_DENIED		= 0x286,
-	NVME_SC_DNR			= 0x4000,
-};
-
-struct nvme_completion {
-	__le32	result;		/* Used by admin commands to return data */
-	__u32	rsvd;
-	__le16	sq_head;	/* how much of this queue may be reclaimed */
-	__le16	sq_id;		/* submission queue that generated this entry */
-	__u16	command_id;	/* of the command which completed */
-	__le16	status;		/* did the command fail, and if so, why? */
-};
-
-struct nvme_user_io {
-	__u8	opcode;
-	__u8	flags;
-	__u16	control;
-	__u16	nblocks;
-	__u16	rsvd;
-	__u64	metadata;
-	__u64	addr;
-	__u64	slba;
-	__u32	dsmgmt;
-	__u32	reftag;
-	__u16	apptag;
-	__u16	appmask;
-};
-
-struct nvme_passthru_cmd {
-	__u8	opcode;
-	__u8	flags;
-	__u16	rsvd1;
-	__u32	nsid;
-	__u32	cdw2;
-	__u32	cdw3;
-	__u64	metadata;
-	__u64	addr;
-	__u32	metadata_len;
-	__u32	data_len;
-	__u32	cdw10;
-	__u32	cdw11;
-	__u32	cdw12;
-	__u32	cdw13;
-	__u32	cdw14;
-	__u32	cdw15;
-	__u32	timeout_ms;
-	__u32	result;
-};
-
-#define NVME_VS(major, minor) (((major) << 16) | ((minor) << 8))
-
-#define nvme_admin_cmd nvme_passthru_cmd
-
-#define NVME_IOCTL_ID		_IO('N', 0x40)
-#define NVME_IOCTL_ADMIN_CMD	_IOWR('N', 0x41, struct nvme_admin_cmd)
-#define NVME_IOCTL_SUBMIT_IO	_IOW('N', 0x42, struct nvme_user_io)
-#define NVME_IOCTL_IO_CMD	_IOWR('N', 0x43, struct nvme_passthru_cmd)
-#define NVME_IOCTL_RESET	_IO('N', 0x44)
-#define NVME_IOCTL_SUBSYS_RESET	_IO('N', 0x45)
-
-#endif /* _UAPI_LINUX_NVME_H */
diff --git a/include/uapi/linux/nvme_ioctl.h b/include/uapi/linux/nvme_ioctl.h
new file mode 100644
index 000000000000..c4b2a3f90829
--- /dev/null
+++ b/include/uapi/linux/nvme_ioctl.h
@@ -0,0 +1,65 @@
+/*
+ * Definitions for the NVM Express ioctl interface
+ * Copyright (c) 2011-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _UAPI_LINUX_NVME_IOCTL_H
+#define _UAPI_LINUX_NVME_IOCTL_H
+
+#include <linux/types.h>
+
+struct nvme_user_io {
+	__u8	opcode;
+	__u8	flags;
+	__u16	control;
+	__u16	nblocks;
+	__u16	rsvd;
+	__u64	metadata;
+	__u64	addr;
+	__u64	slba;
+	__u32	dsmgmt;
+	__u32	reftag;
+	__u16	apptag;
+	__u16	appmask;
+};
+
+struct nvme_passthru_cmd {
+	__u8	opcode;
+	__u8	flags;
+	__u16	rsvd1;
+	__u32	nsid;
+	__u32	cdw2;
+	__u32	cdw3;
+	__u64	metadata;
+	__u64	addr;
+	__u32	metadata_len;
+	__u32	data_len;
+	__u32	cdw10;
+	__u32	cdw11;
+	__u32	cdw12;
+	__u32	cdw13;
+	__u32	cdw14;
+	__u32	cdw15;
+	__u32	timeout_ms;
+	__u32	result;
+};
+
+#define nvme_admin_cmd nvme_passthru_cmd
+
+#define NVME_IOCTL_ID		_IO('N', 0x40)
+#define NVME_IOCTL_ADMIN_CMD	_IOWR('N', 0x41, struct nvme_admin_cmd)
+#define NVME_IOCTL_SUBMIT_IO	_IOW('N', 0x42, struct nvme_user_io)
+#define NVME_IOCTL_IO_CMD	_IOWR('N', 0x43, struct nvme_passthru_cmd)
+#define NVME_IOCTL_RESET	_IO('N', 0x44)
+#define NVME_IOCTL_SUBSYS_RESET	_IO('N', 0x45)
+
+#endif /* _UAPI_LINUX_NVME_IOCTL_H */