 3d69bb6e46
			
		
	
	
	3d69bb6e46
	
	
	
		
			
			Taken from the 1.1a version of the spec Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
		
			
				
	
	
		
			517 lines
		
	
	
	
		
			10 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			517 lines
		
	
	
	
		
			10 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Definitions for the NVM Express interface
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|  * Copyright (c) 2011-2014, Intel Corporation.
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|  *
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|  * This program is free software; you can redistribute it and/or modify it
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|  * under the terms and conditions of the GNU General Public License,
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|  * version 2, as published by the Free Software Foundation.
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|  *
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|  * This program is distributed in the hope it will be useful, but WITHOUT
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|  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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|  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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|  * more details.
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|  */
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| 
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| #ifndef _UAPI_LINUX_NVME_H
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| #define _UAPI_LINUX_NVME_H
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| 
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| #include <linux/types.h>
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| 
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| struct nvme_id_power_state {
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| 	__le16			max_power;	/* centiwatts */
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| 	__u8			rsvd2;
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| 	__u8			flags;
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| 	__le32			entry_lat;	/* microseconds */
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| 	__le32			exit_lat;	/* microseconds */
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| 	__u8			read_tput;
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| 	__u8			read_lat;
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| 	__u8			write_tput;
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| 	__u8			write_lat;
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| 	__le16			idle_power;
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| 	__u8			idle_scale;
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| 	__u8			rsvd19;
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| 	__le16			active_power;
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| 	__u8			active_work_scale;
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| 	__u8			rsvd23[9];
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| };
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| 
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| enum {
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| 	NVME_PS_FLAGS_MAX_POWER_SCALE	= 1 << 0,
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| 	NVME_PS_FLAGS_NON_OP_STATE	= 1 << 1,
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| };
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| 
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| struct nvme_id_ctrl {
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| 	__le16			vid;
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| 	__le16			ssvid;
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| 	char			sn[20];
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| 	char			mn[40];
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| 	char			fr[8];
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| 	__u8			rab;
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| 	__u8			ieee[3];
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| 	__u8			mic;
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| 	__u8			mdts;
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| 	__u16			cntlid;
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| 	__u32			ver;
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| 	__u8			rsvd84[172];
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| 	__le16			oacs;
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| 	__u8			acl;
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| 	__u8			aerl;
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| 	__u8			frmw;
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| 	__u8			lpa;
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| 	__u8			elpe;
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| 	__u8			npss;
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| 	__u8			avscc;
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| 	__u8			apsta;
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| 	__le16			wctemp;
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| 	__le16			cctemp;
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| 	__u8			rsvd270[242];
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| 	__u8			sqes;
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| 	__u8			cqes;
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| 	__u8			rsvd514[2];
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| 	__le32			nn;
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| 	__le16			oncs;
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| 	__le16			fuses;
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| 	__u8			fna;
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| 	__u8			vwc;
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| 	__le16			awun;
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| 	__le16			awupf;
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| 	__u8			nvscc;
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| 	__u8			rsvd531;
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| 	__le16			acwu;
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| 	__u8			rsvd534[2];
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| 	__le32			sgls;
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| 	__u8			rsvd540[1508];
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| 	struct nvme_id_power_state	psd[32];
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| 	__u8			vs[1024];
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| };
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| 
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| enum {
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| 	NVME_CTRL_ONCS_COMPARE			= 1 << 0,
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| 	NVME_CTRL_ONCS_WRITE_UNCORRECTABLE	= 1 << 1,
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| 	NVME_CTRL_ONCS_DSM			= 1 << 2,
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| 	NVME_CTRL_VWC_PRESENT			= 1 << 0,
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| };
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| 
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| struct nvme_lbaf {
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| 	__le16			ms;
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| 	__u8			ds;
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| 	__u8			rp;
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| };
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| 
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| struct nvme_id_ns {
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| 	__le64			nsze;
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| 	__le64			ncap;
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| 	__le64			nuse;
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| 	__u8			nsfeat;
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| 	__u8			nlbaf;
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| 	__u8			flbas;
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| 	__u8			mc;
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| 	__u8			dpc;
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| 	__u8			dps;
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| 	__u8			nmic;
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| 	__u8			rescap;
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| 	__u8			fpi;
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| 	__u8			rsvd33;
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| 	__le16			nawun;
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| 	__le16			nawupf;
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| 	__le16			nacwu;
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| 	__u8			rsvd40[80];
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| 	__u8			eui64[8];
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| 	struct nvme_lbaf	lbaf[16];
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| 	__u8			rsvd192[192];
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| 	__u8			vs[3712];
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| };
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| 
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| enum {
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| 	NVME_NS_FEAT_THIN	= 1 << 0,
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| 	NVME_LBAF_RP_BEST	= 0,
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| 	NVME_LBAF_RP_BETTER	= 1,
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| 	NVME_LBAF_RP_GOOD	= 2,
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| 	NVME_LBAF_RP_DEGRADED	= 3,
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| };
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| 
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| struct nvme_smart_log {
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| 	__u8			critical_warning;
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| 	__u8			temperature[2];
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| 	__u8			avail_spare;
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| 	__u8			spare_thresh;
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| 	__u8			percent_used;
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| 	__u8			rsvd6[26];
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| 	__u8			data_units_read[16];
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| 	__u8			data_units_written[16];
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| 	__u8			host_reads[16];
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| 	__u8			host_writes[16];
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| 	__u8			ctrl_busy_time[16];
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| 	__u8			power_cycles[16];
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| 	__u8			power_on_hours[16];
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| 	__u8			unsafe_shutdowns[16];
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| 	__u8			media_errors[16];
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| 	__u8			num_err_log_entries[16];
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| 	__le32			warning_temp_time;
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| 	__le32			critical_comp_time;
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| 	__le16			temp_sensor[8];
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| 	__u8			rsvd216[296];
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| };
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| 
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| enum {
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| 	NVME_SMART_CRIT_SPARE		= 1 << 0,
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| 	NVME_SMART_CRIT_TEMPERATURE	= 1 << 1,
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| 	NVME_SMART_CRIT_RELIABILITY	= 1 << 2,
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| 	NVME_SMART_CRIT_MEDIA		= 1 << 3,
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| 	NVME_SMART_CRIT_VOLATILE_MEMORY	= 1 << 4,
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| };
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| 
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| struct nvme_lba_range_type {
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| 	__u8			type;
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| 	__u8			attributes;
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| 	__u8			rsvd2[14];
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| 	__u64			slba;
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| 	__u64			nlb;
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| 	__u8			guid[16];
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| 	__u8			rsvd48[16];
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| };
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| 
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| enum {
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| 	NVME_LBART_TYPE_FS	= 0x01,
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| 	NVME_LBART_TYPE_RAID	= 0x02,
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| 	NVME_LBART_TYPE_CACHE	= 0x03,
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| 	NVME_LBART_TYPE_SWAP	= 0x04,
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| 
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| 	NVME_LBART_ATTRIB_TEMP	= 1 << 0,
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| 	NVME_LBART_ATTRIB_HIDE	= 1 << 1,
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| };
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| 
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| /* I/O commands */
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| 
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| enum nvme_opcode {
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| 	nvme_cmd_flush		= 0x00,
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| 	nvme_cmd_write		= 0x01,
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| 	nvme_cmd_read		= 0x02,
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| 	nvme_cmd_write_uncor	= 0x04,
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| 	nvme_cmd_compare	= 0x05,
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| 	nvme_cmd_dsm		= 0x09,
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| };
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| 
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| struct nvme_common_command {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__le32			nsid;
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| 	__le32			cdw2[2];
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| 	__le64			metadata;
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| 	__le64			prp1;
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| 	__le64			prp2;
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| 	__le32			cdw10[6];
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| };
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| 
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| struct nvme_rw_command {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__le32			nsid;
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| 	__u64			rsvd2;
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| 	__le64			metadata;
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| 	__le64			prp1;
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| 	__le64			prp2;
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| 	__le64			slba;
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| 	__le16			length;
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| 	__le16			control;
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| 	__le32			dsmgmt;
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| 	__le32			reftag;
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| 	__le16			apptag;
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| 	__le16			appmask;
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| };
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| 
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| enum {
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| 	NVME_RW_LR			= 1 << 15,
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| 	NVME_RW_FUA			= 1 << 14,
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| 	NVME_RW_DSM_FREQ_UNSPEC		= 0,
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| 	NVME_RW_DSM_FREQ_TYPICAL	= 1,
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| 	NVME_RW_DSM_FREQ_RARE		= 2,
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| 	NVME_RW_DSM_FREQ_READS		= 3,
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| 	NVME_RW_DSM_FREQ_WRITES		= 4,
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| 	NVME_RW_DSM_FREQ_RW		= 5,
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| 	NVME_RW_DSM_FREQ_ONCE		= 6,
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| 	NVME_RW_DSM_FREQ_PREFETCH	= 7,
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| 	NVME_RW_DSM_FREQ_TEMP		= 8,
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| 	NVME_RW_DSM_LATENCY_NONE	= 0 << 4,
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| 	NVME_RW_DSM_LATENCY_IDLE	= 1 << 4,
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| 	NVME_RW_DSM_LATENCY_NORM	= 2 << 4,
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| 	NVME_RW_DSM_LATENCY_LOW		= 3 << 4,
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| 	NVME_RW_DSM_SEQ_REQ		= 1 << 6,
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| 	NVME_RW_DSM_COMPRESSED		= 1 << 7,
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| };
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| 
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| struct nvme_dsm_cmd {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__le32			nsid;
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| 	__u64			rsvd2[2];
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| 	__le64			prp1;
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| 	__le64			prp2;
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| 	__le32			nr;
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| 	__le32			attributes;
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| 	__u32			rsvd12[4];
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| };
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| 
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| enum {
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| 	NVME_DSMGMT_IDR		= 1 << 0,
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| 	NVME_DSMGMT_IDW		= 1 << 1,
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| 	NVME_DSMGMT_AD		= 1 << 2,
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| };
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| 
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| struct nvme_dsm_range {
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| 	__le32			cattr;
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| 	__le32			nlb;
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| 	__le64			slba;
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| };
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| 
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| /* Admin commands */
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| 
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| enum nvme_admin_opcode {
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| 	nvme_admin_delete_sq		= 0x00,
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| 	nvme_admin_create_sq		= 0x01,
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| 	nvme_admin_get_log_page		= 0x02,
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| 	nvme_admin_delete_cq		= 0x04,
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| 	nvme_admin_create_cq		= 0x05,
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| 	nvme_admin_identify		= 0x06,
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| 	nvme_admin_abort_cmd		= 0x08,
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| 	nvme_admin_set_features		= 0x09,
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| 	nvme_admin_get_features		= 0x0a,
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| 	nvme_admin_async_event		= 0x0c,
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| 	nvme_admin_activate_fw		= 0x10,
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| 	nvme_admin_download_fw		= 0x11,
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| 	nvme_admin_format_nvm		= 0x80,
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| 	nvme_admin_security_send	= 0x81,
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| 	nvme_admin_security_recv	= 0x82,
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| };
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| 
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| enum {
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| 	NVME_QUEUE_PHYS_CONTIG	= (1 << 0),
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| 	NVME_CQ_IRQ_ENABLED	= (1 << 1),
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| 	NVME_SQ_PRIO_URGENT	= (0 << 1),
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| 	NVME_SQ_PRIO_HIGH	= (1 << 1),
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| 	NVME_SQ_PRIO_MEDIUM	= (2 << 1),
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| 	NVME_SQ_PRIO_LOW	= (3 << 1),
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| 	NVME_FEAT_ARBITRATION	= 0x01,
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| 	NVME_FEAT_POWER_MGMT	= 0x02,
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| 	NVME_FEAT_LBA_RANGE	= 0x03,
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| 	NVME_FEAT_TEMP_THRESH	= 0x04,
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| 	NVME_FEAT_ERR_RECOVERY	= 0x05,
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| 	NVME_FEAT_VOLATILE_WC	= 0x06,
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| 	NVME_FEAT_NUM_QUEUES	= 0x07,
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| 	NVME_FEAT_IRQ_COALESCE	= 0x08,
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| 	NVME_FEAT_IRQ_CONFIG	= 0x09,
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| 	NVME_FEAT_WRITE_ATOMIC	= 0x0a,
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| 	NVME_FEAT_ASYNC_EVENT	= 0x0b,
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| 	NVME_FEAT_SW_PROGRESS	= 0x0c,
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| 	NVME_LOG_ERROR		= 0x01,
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| 	NVME_LOG_SMART		= 0x02,
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| 	NVME_LOG_FW_SLOT	= 0x03,
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| 	NVME_LOG_RESERVATION	= 0x80,
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| 	NVME_FWACT_REPL		= (0 << 3),
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| 	NVME_FWACT_REPL_ACTV	= (1 << 3),
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| 	NVME_FWACT_ACTV		= (2 << 3),
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| };
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| 
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| struct nvme_identify {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__le32			nsid;
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| 	__u64			rsvd2[2];
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| 	__le64			prp1;
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| 	__le64			prp2;
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| 	__le32			cns;
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| 	__u32			rsvd11[5];
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| };
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| 
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| struct nvme_features {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__le32			nsid;
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| 	__u64			rsvd2[2];
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| 	__le64			prp1;
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| 	__le64			prp2;
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| 	__le32			fid;
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| 	__le32			dword11;
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| 	__u32			rsvd12[4];
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| };
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| 
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| struct nvme_create_cq {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__u32			rsvd1[5];
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| 	__le64			prp1;
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| 	__u64			rsvd8;
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| 	__le16			cqid;
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| 	__le16			qsize;
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| 	__le16			cq_flags;
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| 	__le16			irq_vector;
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| 	__u32			rsvd12[4];
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| };
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| 
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| struct nvme_create_sq {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__u32			rsvd1[5];
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| 	__le64			prp1;
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| 	__u64			rsvd8;
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| 	__le16			sqid;
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| 	__le16			qsize;
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| 	__le16			sq_flags;
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| 	__le16			cqid;
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| 	__u32			rsvd12[4];
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| };
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| 
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| struct nvme_delete_queue {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__u32			rsvd1[9];
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| 	__le16			qid;
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| 	__u16			rsvd10;
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| 	__u32			rsvd11[5];
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| };
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| 
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| struct nvme_abort_cmd {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__u32			rsvd1[9];
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| 	__le16			sqid;
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| 	__u16			cid;
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| 	__u32			rsvd11[5];
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| };
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| 
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| struct nvme_download_firmware {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__u32			rsvd1[5];
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| 	__le64			prp1;
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| 	__le64			prp2;
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| 	__le32			numd;
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| 	__le32			offset;
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| 	__u32			rsvd12[4];
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| };
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| 
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| struct nvme_format_cmd {
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| 	__u8			opcode;
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| 	__u8			flags;
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| 	__u16			command_id;
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| 	__le32			nsid;
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| 	__u64			rsvd2[4];
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| 	__le32			cdw10;
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| 	__u32			rsvd11[5];
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| };
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| 
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| struct nvme_command {
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| 	union {
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| 		struct nvme_common_command common;
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| 		struct nvme_rw_command rw;
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| 		struct nvme_identify identify;
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| 		struct nvme_features features;
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| 		struct nvme_create_cq create_cq;
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| 		struct nvme_create_sq create_sq;
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| 		struct nvme_delete_queue delete_queue;
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| 		struct nvme_download_firmware dlfw;
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| 		struct nvme_format_cmd format;
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| 		struct nvme_dsm_cmd dsm;
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| 		struct nvme_abort_cmd abort;
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| 	};
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| };
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| 
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| enum {
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| 	NVME_SC_SUCCESS			= 0x0,
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| 	NVME_SC_INVALID_OPCODE		= 0x1,
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| 	NVME_SC_INVALID_FIELD		= 0x2,
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| 	NVME_SC_CMDID_CONFLICT		= 0x3,
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| 	NVME_SC_DATA_XFER_ERROR		= 0x4,
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| 	NVME_SC_POWER_LOSS		= 0x5,
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| 	NVME_SC_INTERNAL		= 0x6,
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| 	NVME_SC_ABORT_REQ		= 0x7,
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| 	NVME_SC_ABORT_QUEUE		= 0x8,
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| 	NVME_SC_FUSED_FAIL		= 0x9,
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| 	NVME_SC_FUSED_MISSING		= 0xa,
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| 	NVME_SC_INVALID_NS		= 0xb,
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| 	NVME_SC_CMD_SEQ_ERROR		= 0xc,
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| 	NVME_SC_LBA_RANGE		= 0x80,
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| 	NVME_SC_CAP_EXCEEDED		= 0x81,
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| 	NVME_SC_NS_NOT_READY		= 0x82,
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| 	NVME_SC_CQ_INVALID		= 0x100,
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| 	NVME_SC_QID_INVALID		= 0x101,
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| 	NVME_SC_QUEUE_SIZE		= 0x102,
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| 	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,
 | |
| 	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_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 */
 |