Dell Emulex Family of Adapters - Manual (Page 590)

Emulex Drivers for Windows User Manual P010077-01A Rev. A
3. Configuration
NIC Driver Configuration
590
As a result, the driver can only report a feature's current capabilities (accurate for the
present configuration), if the feature is currently enabled. However, standard
PowerShell commands will report whatever is present in the registry, when the feature
is not enabled. This can conflict with what the driver actually supports in the current
configuration.
Determining What PowerShell Is Reporting (Registry/Driver-Reported
Capabilities)
You can usually tell whether PowerShell is using capabilities reported by the driver or
is picking up registry values.

SRIOV
Check the output of Get-NetAdapterSRIOV.CurrentCapabilities for
CurrentCapabilities.
If CurrentCapabilities is empty, the driver is not currently enabled for SR-IOV.
Any reported fields in Get-NetAdapterSriov | fl * are based on registry values.
If CurrentCapabilities is not null, the driver is enabled for SR-IOV.
Get-NetAdapterSriov fields are based on what the driver reports.
NetAdapter*) commands behave in this manner.

RDMA
Check the output of Get-NetAdapterRdma.RdmaAdapterInfo for
RdmaAdapterInfo.
If RdmaAdapterInfo is empty, any reported fields in Get-NetAdapterRdma | fl
* are based on registry values. If RdmaAdapterInfo is not null, the driver is
reporting RDMA capabilities. Get-NetAdapterRdma fields are based on what
the driver reports.
Considerations for Using UMC and NIC
Note: UMC is not supported on LPe16202 CFAs.

64 VLAN IDs can be used with each UMC virtual channel.

SR-IOV must be disabled when using UMC because it is not supported.
For additional information on UMC, refer to the Emulex Universal Multichannel Reference
Guide, which is available for download from the Emulex website.
ARI Considerations
Note: RoCE is not supported with ARI.
The PCIe standard limits an adapter to a maximum of 8 physical functions. This means
that a 2-port adapter can only have 4 functions per port and a 4 port adapter can only
have 2 functions per port. The following requirements must be met to fully support
ARI and expose more than 8 functions on an adapter: