// Copyright (c) 2015-2021 MinIO, Inc.//// This file is part of MinIO Object Storage stack//// This program is free software: you can redistribute it and/or modify// it under the terms of the GNU Affero General Public License as published by// the Free Software Foundation, either version 3 of the License, or// (at your option) any later version.//// This program is distributed in the hope that it will be useful// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the// GNU Affero General Public License for more details.//// You should have received a copy of the GNU Affero General Public License// along with this program.  If not, see <http://www.gnu.org/licenses/>. package smart // Defined in <linux/nvme_ioctl.h>//nolint:structcheck,deadcodetype nvmePassthruCommand struct {	opcode      uint8	flags       uint8	rsvd1       uint16	nsid        uint32	cdw2        uint32	cdw3        uint32	metadata    uint64	addr        uint64	metadataLen uint32	dataLen     uint32	cdw10       uint32	cdw11       uint32	cdw12       uint32	cdw13       uint32	cdw14       uint32	cdw15       uint32	timeoutMS   uint32	result      uint32} // 72 bytes type nvmeIdentPowerState struct {	MaxPower        uint16 // Centiwatts	Rsvd2           uint8	Flags           uint8	EntryLat        uint32 // Microseconds	ExitLat         uint32 // Microseconds	ReadTput        uint8	ReadLat         uint8	WriteTput       uint8	WriteLat        uint8	IdlePower       uint16	IdleScale       uint8	Rsvd19          uint8	ActivePower     uint16	ActiveWorkScale uint8	Rsvd23          [9]byte} //nolint:deadcodetype nvmeIdentController struct {	VendorID     uint16                  // PCI Vendor ID	Ssvid        uint16                  // PCI Subsystem Vendor ID	SerialNumber [20]byte                // Serial Number	ModelNumber  [40]byte                // Model Number	Firmware     [8]byte                 // Firmware Revision	Rab          uint8                   // Recommended Arbitration Burst	IEEE         [3]byte                 // IEEE OUI Identifier	Cmic         uint8                   // Controller Multi-Path I/O and Namespace Sharing Capabilities	Mdts         uint8                   // Maximum Data Transfer Size	Cntlid       uint16                  // Controller ID	Ver          uint32                  // Version	Rtd3r        uint32                  // RTD3 Resume Latency	Rtd3e        uint32                  // RTD3 Entry Latency	Oaes         uint32                  // Optional Asynchronous Events Supported	Rsvd96       [160]byte               // ...	Oacs         uint16                  // Optional Admin Command Support	ACL          uint8                   // Abort Command Limit	Aerl         uint8                   // Asynchronous Event Request Limit	Frmw         uint8                   // Firmware Updates	Lpa          uint8                   // Log Page Attributes	Elpe         uint8                   // Error Log Page Entries	Npss         uint8                   // Number of Power States Support	Avscc        uint8                   // Admin Vendor Specific Command Configuration	Apsta        uint8                   // Autonomous Power State Transition Attributes	Wctemp       uint16                  // Warning Composite Temperature Threshold	Cctemp       uint16                  // Critical Composite Temperature Threshold	Mtfa         uint16                  // Maximum Time for Firmware Activation	Hmpre        uint32                  // Host Memory Buffer Preferred Size	Hmmin        uint32                  // Host Memory Buffer Minimum Size	Tnvmcap      [16]byte                // Total NVM Capacity	Unvmcap      [16]byte                // Unallocated NVM Capacity	Rpmbs        uint32                  // Replay Protected Memory Block Support	Rsvd316      [196]byte               // ...	Sqes         uint8                   // Submission Queue Entry Size	Cqes         uint8                   // Completion Queue Entry Size	Rsvd514      [2]byte                 // (defined in NVMe 1.3 spec)	Nn           uint32                  // Number of Namespaces	Oncs         uint16                  // Optional NVM Command Support	Fuses        uint16                  // Fused Operation Support	Fna          uint8                   // Format NVM Attributes	Vwc          uint8                   // Volatile Write Cache	Awun         uint16                  // Atomic Write Unit Normal	Awupf        uint16                  // Atomic Write Unit Power Fail	Nvscc        uint8                   // NVM Vendor Specific Command Configuration	Rsvd531      uint8                   // ...	Acwu         uint16                  // Atomic Compare & Write Unit	Rsvd534      [2]byte                 // ...	Sgls         uint32                  // SGL Support	Rsvd540      [1508]byte              // ...	Psd          [32]nvmeIdentPowerState // Power State Descriptors	Vs           [1024]byte              // Vendor Specific} // 4096 bytes //nolint:deadcodetype nvmeSMARTLog struct {	CritWarning      uint8	Temperature      [2]uint8	AvailSpare       uint8	SpareThresh      uint8	PercentUsed      uint8	Rsvd6            [26]byte	DataUnitsRead    [16]byte	DataUnitsWritten [16]byte	HostReads        [16]byte	HostWrites       [16]byte	CtrlBusyTime     [16]byte	PowerCycles      [16]byte	PowerOnHours     [16]byte	UnsafeShutdowns  [16]byte	MediaErrors      [16]byte	NumErrLogEntries [16]byte	WarningTempTime  uint32	CritCompTime     uint32	TempSensor       [8]uint16	Rsvd216          [296]byte} // 512 bytes // NVMeDevice represents drive data about NVMe drives//nolint:structchecktype NVMeDevice struct {	Name string	fd   int}