Users Guide

16–Windows Server 2019
New Adapter Properties
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New Adapter Properties
New user-configurable properties available in Windows Server 2019 are
described in the following sections:
 Max Queue Pairs (L2) Per VPort
 Network Direct Technology
 Virtualization Resources
 VMQ and VMMQ Default Accelerations
 Single VPort Pool
Max Queue Pairs (L2) Per VPort
As explained in VMMQ Is Enabled by Default, Windows 2019 (and Windows
2016) introduced a new user-configurable parameter, Max Queue Pairs (L2) per
VPort. This parameter permits greater control of resource distribution by defining
the maximum quantity of queue pairs that can be assigned to the following:
 VPort-Default VPort
 PF Non-Default VPort (VMQ/VMMQ)
 SR-IOV Non-Default VPort (VF)
1
The default value of the Max Queue Pairs (L2) per VPort parameter is set to
Auto, which is one of the following:
 Max Queue Pairs for Default vPort = 8
 Max Queue Pairs for Non-Default vPort = 4
If you select a value less than 8, then:
 Max Queue Pairs for Default vPort = 8
 Max Queue Pairs for Non-Default vPort = value
If you select a value greater than 8, then:
 Max Queue Pairs for Default vPort = value
 Max Queue Pairs for Non-Default vPort = value
Network Direct Technology
Marvell supports the new Network Direct Technology parameter that allows you
to select the underlying RDMA technology that adheres to the following Microsoft
specification:
https://docs.microsoft.com/en-us/windows-hardware/drivers/network/inf-requirem
ents-for-ndkpi
This option replaces the RDMA Mode parameter.
1
This parameter also applies to Windows Server 2016.