param(
        [string]$driver_description,
        [string]$action,
        [string]$mtu
)

$settings_on = @{
        "IPChecksumOffloadIPv4"=3
        "LSOV2IPv4"=1
        "LSOV2IPv6"=1
        "Offload.RxCS"=31
        "Offload.TxChecksum"=31
        "Offload.TxLSO"=2
        "TCPChecksumOffloadIPv4"=3
        "TCPChecksumOffloadIPv6"=3
        "UDPChecksumOffloadIPv4"=3
        "UDPChecksumOffloadIPv6"=3
}

$root = 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}'
$items = Get-ChildItem -Path Registry::$Root -Name
Foreach ($item in $items) {
    if ($item -ne "Properties") {
        $path = $root + "\" + $item
        $DriverDesc = Get-ItemProperty -Path Registry::$path | Select-Object -expandproperty DriverDesc
        if ($DriverDesc -eq $driver_description) {
            Set-ItemProperty -path Registry::$path -Name "Init.MTUSize" -Value $mtu
            foreach ($key in $settings_on.keys) {
                $value = "0"
                if ($action -eq "on") {
                    $value = $settings_on[$key]
                }
                Set-ItemProperty -path Registry::$path -Name $key -Value $value
            }
        }
    }
}