Standardized INF keywords for VMMQ
The *RssOnHostVPorts standardized INF keyword is defined to enable or disable support for the network adapter Virtual Machine Multiple Queues (VMMQ) feature.
The *RssOnHostVPorts INF keyword is an enumeration keyword. Enumeration standardized INF keywords have the following attributes:
SubkeyName: The name of the keyword that you must specify in the INF file.
ParamDesc: The display text that is associated with the SubkeyName.
Value: The enumeration integer value that is associated with each SubkeyName in the list.
EnumDesc: The display text that is associated with each value that appears in the menu.
Default: The default value for the menu.
The following table describes the possible INF entries for the *RssOnHostVPorts INF keyword.
| SubkeyName | ParamDesc | Value | EnumDesc |
|---|---|---|---|
| *RssOnHostVPorts | Virtual Switch RSS | 0 | Disabled |
| 1 (Default) | Enabled |
During miniport adapter initialization, the miniport driver must examine the *RssOnHostVPorts keyword to determine if it should enable the VMMQ feature on the NIC.
Handling RSS INF keywords for VMMQ
If a NIC supports VMMQ, all Standardized INF Keywords for RSS should also be supported to provide future compatibility even if the OS does not currently use them all. You should use the keywords as normal for RSS functionality except for:
*RSSProfile: The “ClosestProcessor” profile should be supported and used as a policy for VMMQ.
*MaxRssProcessors: When VMMQ is active, this keyword should not restrict the number of MSIx interrupt messages reported in NDIS_RECEIVE_SCALE_CAPABILITIES.