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Scott Bissmeyer
2025-04-07 07:44:27 -07:00
commit d6cde0c05e
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LibreHardwareMonitor-0.9.4/LibreHardwareMonitorLib/Hardware/Storage/NVMeIntel.cs Normal file
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// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Copyright (C) LibreHardwareMonitor and Contributors.
// All Rights Reserved.
using System;
using System.Runtime.InteropServices;
using System.Text;
using LibreHardwareMonitor.Interop;
using Microsoft.Win32.SafeHandles;
namespace LibreHardwareMonitor.Hardware.Storage;
internal class NVMeIntel : INVMeDrive
{
//intel nvme access
public SafeHandle Identify(StorageInfo storageInfo)
{
return NVMeWindows.IdentifyDevice(storageInfo);
}
public bool IdentifyController(SafeHandle hDevice, out Kernel32.NVME_IDENTIFY_CONTROLLER_DATA data)
{
data = Kernel32.CreateStruct<Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>();
if (hDevice?.IsInvalid != false)
return false;
bool result = false;
Kernel32.NVME_PASS_THROUGH_IOCTL passThrough = Kernel32.CreateStruct<Kernel32.NVME_PASS_THROUGH_IOCTL>();
passThrough.srb.HeaderLenght = (uint)Marshal.SizeOf<Kernel32.SRB_IO_CONTROL>();
passThrough.srb.Signature = Encoding.ASCII.GetBytes(Kernel32.IntelNVMeMiniPortSignature1);
passThrough.srb.Timeout = 10;
passThrough.srb.ControlCode = Kernel32.NVME_PASS_THROUGH_SRB_IO_CODE;
passThrough.srb.ReturnCode = 0;
passThrough.srb.Length = (uint)Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>() - (uint)Marshal.SizeOf<Kernel32.SRB_IO_CONTROL>();
passThrough.NVMeCmd = new uint[16];
passThrough.NVMeCmd[0] = 6; //identify
passThrough.NVMeCmd[10] = 1; //return to host
passThrough.Direction = Kernel32.NVME_DIRECTION.NVME_FROM_DEV_TO_HOST;
passThrough.QueueId = 0;
passThrough.DataBufferLen = (uint)passThrough.DataBuffer.Length;
passThrough.MetaDataLen = 0;
passThrough.ReturnBufferLen = (uint)Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>();
int length = Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>();
IntPtr buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(passThrough, buffer, false);
bool validTransfer = Kernel32.DeviceIoControl(hDevice, Kernel32.IOCTL.IOCTL_SCSI_MINIPORT, buffer, length, buffer, length, out _, IntPtr.Zero);
if (validTransfer)
{
IntPtr offset = Marshal.OffsetOf<Kernel32.NVME_PASS_THROUGH_IOCTL>(nameof(Kernel32.NVME_PASS_THROUGH_IOCTL.DataBuffer));
var newPtr = IntPtr.Add(buffer, offset.ToInt32());
int finalSize = Marshal.SizeOf<Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>();
IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf<Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>());
Kernel32.RtlZeroMemory(ptr, finalSize);
int len = Math.Min(finalSize, passThrough.DataBuffer.Length);
Kernel32.RtlCopyMemory(ptr, newPtr, (uint)len);
Marshal.FreeHGlobal(buffer);
data = Marshal.PtrToStructure<Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>(ptr);
Marshal.FreeHGlobal(ptr);
result = true;
}
else
{
Marshal.FreeHGlobal(buffer);
}
return result;
}
public bool HealthInfoLog(SafeHandle hDevice, out Kernel32.NVME_HEALTH_INFO_LOG data)
{
data = Kernel32.CreateStruct<Kernel32.NVME_HEALTH_INFO_LOG>();
if (hDevice?.IsInvalid != false)
return false;
bool result = false;
Kernel32.NVME_PASS_THROUGH_IOCTL passThrough = Kernel32.CreateStruct<Kernel32.NVME_PASS_THROUGH_IOCTL>();
passThrough.srb.HeaderLenght = (uint)Marshal.SizeOf<Kernel32.SRB_IO_CONTROL>();
passThrough.srb.Signature = Encoding.ASCII.GetBytes(Kernel32.IntelNVMeMiniPortSignature1);
passThrough.srb.Timeout = 10;
passThrough.srb.ControlCode = Kernel32.NVME_PASS_THROUGH_SRB_IO_CODE;
passThrough.srb.ReturnCode = 0;
passThrough.srb.Length = (uint)Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>() - (uint)Marshal.SizeOf<Kernel32.SRB_IO_CONTROL>();
passThrough.NVMeCmd[0] = (uint)Kernel32.STORAGE_PROTOCOL_NVME_DATA_TYPE.NVMeDataTypeLogPage; // GetLogPage
passThrough.NVMeCmd[1] = 0xFFFFFFFF; // address
passThrough.NVMeCmd[10] = 0x007f0002; // uint cdw10 = 0x000000002 | (((size / 4) - 1) << 16);
passThrough.Direction = Kernel32.NVME_DIRECTION.NVME_FROM_DEV_TO_HOST;
passThrough.QueueId = 0;
passThrough.DataBufferLen = (uint)passThrough.DataBuffer.Length;
passThrough.MetaDataLen = 0;
passThrough.ReturnBufferLen = (uint)Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>();
int length = Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>();
IntPtr buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(passThrough, buffer, false);
bool validTransfer = Kernel32.DeviceIoControl(hDevice, Kernel32.IOCTL.IOCTL_SCSI_MINIPORT, buffer, length, buffer, length, out _, IntPtr.Zero);
if (validTransfer)
{
IntPtr offset = Marshal.OffsetOf<Kernel32.NVME_PASS_THROUGH_IOCTL>(nameof(Kernel32.NVME_PASS_THROUGH_IOCTL.DataBuffer));
var newPtr = IntPtr.Add(buffer, offset.ToInt32());
data = Marshal.PtrToStructure<Kernel32.NVME_HEALTH_INFO_LOG>(newPtr);
Marshal.FreeHGlobal(buffer);
result = true;
}
else
{
Marshal.FreeHGlobal(buffer);
}
return result;
}
public static SafeHandle IdentifyDevice(StorageInfo storageInfo)
{
SafeFileHandle handle = Kernel32.OpenDevice(storageInfo.Scsi);
if (handle?.IsInvalid != false)
return null;
Kernel32.NVME_PASS_THROUGH_IOCTL passThrough = Kernel32.CreateStruct<Kernel32.NVME_PASS_THROUGH_IOCTL>();
passThrough.srb.HeaderLenght = (uint)Marshal.SizeOf<Kernel32.SRB_IO_CONTROL>();
passThrough.srb.Signature = Encoding.ASCII.GetBytes(Kernel32.IntelNVMeMiniPortSignature1);
passThrough.srb.Timeout = 10;
passThrough.srb.ControlCode = Kernel32.NVME_PASS_THROUGH_SRB_IO_CODE;
passThrough.srb.ReturnCode = 0;
passThrough.srb.Length = (uint)Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>() - (uint)Marshal.SizeOf<Kernel32.SRB_IO_CONTROL>();
passThrough.NVMeCmd = new uint[16];
passThrough.NVMeCmd[0] = 6; //identify
passThrough.NVMeCmd[10] = 1; //return to host
passThrough.Direction = Kernel32.NVME_DIRECTION.NVME_FROM_DEV_TO_HOST;
passThrough.QueueId = 0;
passThrough.DataBufferLen = (uint)passThrough.DataBuffer.Length;
passThrough.MetaDataLen = 0;
passThrough.ReturnBufferLen = (uint)Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>();
int length = Marshal.SizeOf<Kernel32.NVME_PASS_THROUGH_IOCTL>();
IntPtr buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(passThrough, buffer, false);
bool validTransfer = Kernel32.DeviceIoControl(handle, Kernel32.IOCTL.IOCTL_SCSI_MINIPORT, buffer, length, buffer, length, out _, IntPtr.Zero);
Marshal.FreeHGlobal(buffer);
if (validTransfer) { }
else
{
handle.Close();
handle = null;
}
return handle;
}
}