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Get-NetAdapterSriov
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NAME Get-NetAdapterSriov
SYNOPSIS
Gets the SR-IOV properties of the network adapter.
SYNTAX
Get-NetAdapterSriov [[-Name] <String[]>] [-AsJob] [-CimSession <CimSession[]>] [-IncludeHidden] [-ThrottleLimit <Int32>] [<CommonParameters>]
Get-NetAdapterSriov [-AsJob] [-CimSession <CimSession[]>] [-IncludeHidden] [-ThrottleLimit <Int32>] -InterfaceDescription <String[]>
[<CommonParameters>]
DESCRIPTION
The Get-NetAdapterSriov cmdlet gets the Single-Root I/O Virtualization (SR-IOV) properties of network adapters that support SR-IOV. SR-IOV enables
network traffic to by-pass the software switch layer of the Hyper-V virtualization stack. As a result, the I/O overhead in the software emulation
layer is diminished and can achieve network performance that is nearly the same performance as in non-virtualized environments. Run this cmdlet to
display how the hardware is set to support SR-IOV. This cmdlet will display the properties of the network adapter that relate to SR-IOV, such as
the number of ports, and virtual functions (VFs). The property SriovSupport indicates potential reasons for SR-IOV not functioning properly.
The possible values for SriovSupport include the following:
-- Unknown: Ensure that the computer has hardware support for SR-IOV and that I/O virtualization is enabled in the BIOS. Also ensure that the
computer is running Windows Server???? 2012 and later.
-- Supported: SR-IOV is supported and should be functioning properly.
-- MissingAcs: SR-IOV cannot be used on this network adapter as the PCI Express hardware does not support Access Control Services (ACS). This
device may work in an alternate PCI Express slot. Contact your hardware vendor for further information.
-- MissingPfDriver: SR-IOV cannot be used on this network adapter as the device or device driver does not support SR-IOV. If the network adapter
supports SR-IOV, contact the hardware vendor for an updated driver.
-- NoBusResources: SR-IOV cannot be used on this network adapter as there are not enough PCI Express bus numbers available.
-- NoIoMmuSupport: SR-IOV cannot be used on this computer because of one or more of the following reasons.
-- - The processor does not support second level address translation (SLAT). For processors manufactured by Intel Corporation??????? (Intel???????), this
feature might be referred to as Extended Page Tables (EPT). For processors manufactured by Advanced Micro Devices??????? (AMD???????), this feature might be
referred to as Rapid Virtualization Indexing (RVI) or Nested Page Tables (NPT).
-- - The chipset on the computer does not do Interrupt and/or DMA remapping, without which SR-IOV cannot be supported.
-- - This computer has been configured to disable the use of I/O remapping hardware.
-- NoVfBarSpace: SR-IOV cannot be used on this network adapter as there are not enough PCI Express BAR resources available. This may be due to
incorrect or partial configuration in the computer BIOS for Interrupt and DMA remapping. These settings may be referred to as SR-IOV or
input/output memory management unit (IOMMU) support. If the computer BIOS is correctly configured, this device may work in an alternate PCI
Express slot. Contact the original equipment manufacturer of the computer for further information.
-- NoOscSupport: To use SR-IOV on this computer, the computer BIOS must be updated to allow Windows Server 2012 and later to control PCI Express
using _OSC HandOff. Contact the original equipment manufacturer of the computer for an update.
PARAMETERS
-AsJob [<SwitchParameter>]
ps_cimcommon_asjob
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-CimSession <CimSession[]>
Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession
or Get-CimSession cmdlet. The default is the current session on the local computer.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-IncludeHidden [<SwitchParameter>]
Indicates that the cmdlet includes both visible and hidden network adapters in the operation. If a wildcard character is used to identify a
network adapter, then the wildcard character is matched against both hidden and visible adapters.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-InterfaceDescription <String[]>
Specifies an array of network adapter interface descriptions. For a physical network adapter this is typically the name of the vendor of the
network adapter followed by a part number and description, such as Contoso 12345 Gigabit Network Device.
Required? true
Position? named
Default value
Accept pipeline input? true (ByPropertyName)
Accept wildcard characters? true
-Name <String[]>
Specifies an array network adapter names. The name of the network adapter from which this cmdlet gets the SR-IOV properties.
Required? false
Position? 1
Default value
Accept pipeline input? true (ByPropertyName)
Accept wildcard characters? true
-ThrottleLimit <Int32>
Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0
is entered, then Windows PowerShell???? calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running
on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
<CommonParameters>
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer, PipelineVariable, and OutVariable. For more information, see
about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).
INPUTS
None
OUTPUTS
Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetAdapterSriovSettingData
The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects.
The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.
Example 1: Display SR-IOV properties for all SR-IOV-capable network adapters
PS C:\\>Get-NetAdapterSriov ????????Name "*"
This command displays the SR-IOV properties for all SR-IOV-capable network adapters.
Example 2: Display SR-IOV properties for the specified network adapter
PS C:\\>Get-NetAdapterSriov -Name "Ethernet 2"
This command displays the SR-IOV properties for network adapter named Ethernet 2.
Example 3: Display SR-IOV properties for the network adapter with the specified interface description
PS C:\\>Get-NetAdpaterSriov -InterfaceDescription "Contoso 12345 Gigabit Network Device"
This command displays the SR-IOV properties for the network adapter with the interface description named Contoso 12345 Gigabit Network Device.
Example 4: Get all SR-IOV properties for all network adapters with SR-IOV enabled
PS C:\\>Get-NetAdapterSriov ????????Name "*" | Where-Object -FilterScript { $_.Enabled ????????Eq $true }
This command gets the SR-IOV properties for the network adapter with SR-IOV enabled.
RELATED LINKS
Online Version:
Disable-NetAdapterSriov
Enable-NetAdapterSriov
Get-NetAdapterSriovVf
Set-NetAdapterSriov
SYNOPSIS
Gets the SR-IOV properties of the network adapter.
SYNTAX
Get-NetAdapterSriov [[-Name] <String[]>] [-AsJob] [-CimSession <CimSession[]>] [-IncludeHidden] [-ThrottleLimit <Int32>] [<CommonParameters>]
Get-NetAdapterSriov [-AsJob] [-CimSession <CimSession[]>] [-IncludeHidden] [-ThrottleLimit <Int32>] -InterfaceDescription <String[]>
[<CommonParameters>]
DESCRIPTION
The Get-NetAdapterSriov cmdlet gets the Single-Root I/O Virtualization (SR-IOV) properties of network adapters that support SR-IOV. SR-IOV enables
network traffic to by-pass the software switch layer of the Hyper-V virtualization stack. As a result, the I/O overhead in the software emulation
layer is diminished and can achieve network performance that is nearly the same performance as in non-virtualized environments. Run this cmdlet to
display how the hardware is set to support SR-IOV. This cmdlet will display the properties of the network adapter that relate to SR-IOV, such as
the number of ports, and virtual functions (VFs). The property SriovSupport indicates potential reasons for SR-IOV not functioning properly.
The possible values for SriovSupport include the following:
-- Unknown: Ensure that the computer has hardware support for SR-IOV and that I/O virtualization is enabled in the BIOS. Also ensure that the
computer is running Windows Server???? 2012 and later.
-- Supported: SR-IOV is supported and should be functioning properly.
-- MissingAcs: SR-IOV cannot be used on this network adapter as the PCI Express hardware does not support Access Control Services (ACS). This
device may work in an alternate PCI Express slot. Contact your hardware vendor for further information.
-- MissingPfDriver: SR-IOV cannot be used on this network adapter as the device or device driver does not support SR-IOV. If the network adapter
supports SR-IOV, contact the hardware vendor for an updated driver.
-- NoBusResources: SR-IOV cannot be used on this network adapter as there are not enough PCI Express bus numbers available.
-- NoIoMmuSupport: SR-IOV cannot be used on this computer because of one or more of the following reasons.
-- - The processor does not support second level address translation (SLAT). For processors manufactured by Intel Corporation??????? (Intel???????), this
feature might be referred to as Extended Page Tables (EPT). For processors manufactured by Advanced Micro Devices??????? (AMD???????), this feature might be
referred to as Rapid Virtualization Indexing (RVI) or Nested Page Tables (NPT).
-- - The chipset on the computer does not do Interrupt and/or DMA remapping, without which SR-IOV cannot be supported.
-- - This computer has been configured to disable the use of I/O remapping hardware.
-- NoVfBarSpace: SR-IOV cannot be used on this network adapter as there are not enough PCI Express BAR resources available. This may be due to
incorrect or partial configuration in the computer BIOS for Interrupt and DMA remapping. These settings may be referred to as SR-IOV or
input/output memory management unit (IOMMU) support. If the computer BIOS is correctly configured, this device may work in an alternate PCI
Express slot. Contact the original equipment manufacturer of the computer for further information.
-- NoOscSupport: To use SR-IOV on this computer, the computer BIOS must be updated to allow Windows Server 2012 and later to control PCI Express
using _OSC HandOff. Contact the original equipment manufacturer of the computer for an update.
PARAMETERS
-AsJob [<SwitchParameter>]
ps_cimcommon_asjob
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-CimSession <CimSession[]>
Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession
or Get-CimSession cmdlet. The default is the current session on the local computer.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-IncludeHidden [<SwitchParameter>]
Indicates that the cmdlet includes both visible and hidden network adapters in the operation. If a wildcard character is used to identify a
network adapter, then the wildcard character is matched against both hidden and visible adapters.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-InterfaceDescription <String[]>
Specifies an array of network adapter interface descriptions. For a physical network adapter this is typically the name of the vendor of the
network adapter followed by a part number and description, such as Contoso 12345 Gigabit Network Device.
Required? true
Position? named
Default value
Accept pipeline input? true (ByPropertyName)
Accept wildcard characters? true
-Name <String[]>
Specifies an array network adapter names. The name of the network adapter from which this cmdlet gets the SR-IOV properties.
Required? false
Position? 1
Default value
Accept pipeline input? true (ByPropertyName)
Accept wildcard characters? true
-ThrottleLimit <Int32>
Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0
is entered, then Windows PowerShell???? calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running
on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
<CommonParameters>
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer, PipelineVariable, and OutVariable. For more information, see
about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).
INPUTS
None
OUTPUTS
Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetAdapterSriovSettingData
The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects.
The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.
Example 1: Display SR-IOV properties for all SR-IOV-capable network adapters
PS C:\\>Get-NetAdapterSriov ????????Name "*"
This command displays the SR-IOV properties for all SR-IOV-capable network adapters.
Example 2: Display SR-IOV properties for the specified network adapter
PS C:\\>Get-NetAdapterSriov -Name "Ethernet 2"
This command displays the SR-IOV properties for network adapter named Ethernet 2.
Example 3: Display SR-IOV properties for the network adapter with the specified interface description
PS C:\\>Get-NetAdpaterSriov -InterfaceDescription "Contoso 12345 Gigabit Network Device"
This command displays the SR-IOV properties for the network adapter with the interface description named Contoso 12345 Gigabit Network Device.
Example 4: Get all SR-IOV properties for all network adapters with SR-IOV enabled
PS C:\\>Get-NetAdapterSriov ????????Name "*" | Where-Object -FilterScript { $_.Enabled ????????Eq $true }
This command gets the SR-IOV properties for the network adapter with SR-IOV enabled.
RELATED LINKS
Online Version:
Disable-NetAdapterSriov
Enable-NetAdapterSriov
Get-NetAdapterSriovVf
Set-NetAdapterSriov