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Commit 42c77683 authored by Matthew Wilcox's avatar Matthew Wilcox
Browse files

NVMe: Split header file into user-visible and kernel-visible pieces 



To build user programs that call the NVMe ioctls, we need to have a
user header file.  Catch up to the new way of doing that by splitting
the header file into kernel and uapi portions.

Signed-off-by: default avatarMatthew Wilcox <matthew.r.wilcox@intel.com>
parent 7d822457

include/linux/nvme.h

+5 −456
Original line number Diff line number Diff line 
/*

 * Definitions for the NVM Express interface

 * Copyright (c) 2011, Intel Corporation.

 * Copyright (c) 2011-2013, 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,
@@ -19,7 +19,10 @@ 
#ifndef _LINUX_NVME_H

#define _LINUX_NVME_H



#include <linux/types.h>

#include <uapi/linux/nvme.h>

#include <linux/pci.h>

#include <linux/miscdevice.h>

#include <linux/kref.h>



struct nvme_bar {

	__u64			cap;	/* Controller Capabilities */
@@ -59,460 +62,8 @@ enum { 
	NVME_CSTS_SHST_CMPLT	= 2 << 2,

};



struct nvme_id_power_state {

	__le16			max_power;	/* centiwatts */

	__u16			rsvd2;

	__le32			entry_lat;	/* microseconds */

	__le32			exit_lat;	/* microseconds */

	__u8			read_tput;

	__u8			read_lat;

	__u8			write_tput;

	__u8			write_lat;

	__u8			rsvd16[16];

};



#define NVME_VS(major, minor)	(major << 16 | minor)



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;

	__u8			rsvd78[178];

	__le16			oacs;

	__u8			acl;

	__u8			aerl;

	__u8			frmw;

	__u8			lpa;

	__u8			elpe;

	__u8			npss;

	__u8			rsvd264[248];

	__u8			sqes;

	__u8			cqes;

	__u8			rsvd514[2];

	__le32			nn;

	__le16			oncs;

	__le16			fuses;

	__u8			fna;

	__u8			vwc;

	__le16			awun;

	__le16			awupf;

	__u8			rsvd530[1518];

	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,

};



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			rsvd30[98];

	struct nvme_lbaf	lbaf[16];

	__u8			rsvd192[192];

	__u8			vs[3712];

};



enum {

	NVME_NS_FEAT_THIN	= 1 << 0,

	NVME_LBAF_RP_BEST	= 0,

	NVME_LBAF_RP_BETTER	= 1,

	NVME_LBAF_RP_GOOD	= 2,

	NVME_LBAF_RP_DEGRADED	= 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];

	__u8			rsvd192[320];

};



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,

};



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,

};



/* 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_dsm		= 0x09,

};



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,

};



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_SW_PROGRESS	= 0x0c,

	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_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;

	};

};



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_LBA_RANGE		= 0x80,

	NVME_SC_CAP_EXCEEDED		= 0x81,

	NVME_SC_NS_NOT_READY		= 0x82,

	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_BAD_ATTRIBUTES		= 0x180,

	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,

};



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_admin_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_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)



#ifdef __KERNEL__

#include <linux/pci.h>

#include <linux/miscdevice.h>

#include <linux/kref.h>



#define NVME_IO_TIMEOUT	(5 * HZ)



/*
@@ -614,6 +165,4 @@ struct sg_io_hdr; 
int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr);

int nvme_sg_get_version_num(int __user *ip);



#endif



#endif /* _LINUX_NVME_H */

include/uapi/linux/Kbuild

+1 −0
Original line number Diff line number Diff line
@@ -281,6 +281,7 @@ header-y += nfs_mount.h 
header-y += nfsacl.h

header-y += nl80211.h

header-y += nubus.h

header-y += nvme.h

header-y += nvram.h

header-y += omap3isp.h

header-y += omapfb.h

include/uapi/linux/nvme.h

0 → 100644
+471 −0
Original line number Diff line number Diff line 
/*

 * Definitions for the NVM Express interface

 * Copyright (c) 2011-2013, 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.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program; if not, write to the Free Software Foundation, Inc., 

 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

 */



#ifndef _UAPI_LINUX_NVME_H

#define _UAPI_LINUX_NVME_H



#include <linux/types.h>



struct nvme_id_power_state {

	__le16			max_power;	/* centiwatts */

	__u16			rsvd2;

	__le32			entry_lat;	/* microseconds */

	__le32			exit_lat;	/* microseconds */

	__u8			read_tput;

	__u8			read_lat;

	__u8			write_tput;

	__u8			write_lat;

	__u8			rsvd16[16];

};



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;

	__u8			rsvd78[178];

	__le16			oacs;

	__u8			acl;

	__u8			aerl;

	__u8			frmw;

	__u8			lpa;

	__u8			elpe;

	__u8			npss;

	__u8			rsvd264[248];

	__u8			sqes;

	__u8			cqes;

	__u8			rsvd514[2];

	__le32			nn;

	__le16			oncs;

	__le16			fuses;

	__u8			fna;

	__u8			vwc;

	__le16			awun;

	__le16			awupf;

	__u8			rsvd530[1518];

	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,

};



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			rsvd30[98];

	struct nvme_lbaf	lbaf[16];

	__u8			rsvd192[192];

	__u8			vs[3712];

};



enum {

	NVME_NS_FEAT_THIN	= 1 << 0,

	NVME_LBAF_RP_BEST	= 0,

	NVME_LBAF_RP_BETTER	= 1,

	NVME_LBAF_RP_GOOD	= 2,

	NVME_LBAF_RP_DEGRADED	= 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];

	__u8			rsvd192[320];

};



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,

};



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,

};



/* 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_dsm		= 0x09,

};



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,

};



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_SW_PROGRESS	= 0x0c,

	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_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;

	};

};



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_LBA_RANGE		= 0x80,

	NVME_SC_CAP_EXCEEDED		= 0x81,

	NVME_SC_NS_NOT_READY		= 0x82,

	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_BAD_ATTRIBUTES		= 0x180,

	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,

};



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_admin_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_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)



#endif /* _UAPI_LINUX_NVME_H */