Q-Logic 8100 SERIES 用户手册

6–Configuring NIC Functionality in the Converged Network Adapter
Configuring the NIC in a Windows Environment

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To disable RSS per port using the Windows Advanced Property pages 

(

):

1.

Select ReceiveSideScaling under the Property box in the Advanced tab 
and set the value to Disabled.

2.

Click OK to save the setting and deactivate RSS.

For more information about Microsoft implementation of RSS and its limitations for 
Microsoft Windows operating system versions, refer to 

Header data split (HDS) is a feature of the networking stack in Microsoft Windows 
Server 2008 and is fully supported by the QLogic 8100 Series Adapter NIC driver. 
HDS enables the adapter NDIS miniport driver to indicate to the network stack 
that incoming packets are split: the header portion of the packet and the data 
payload portion of the packet are mapped into two or more memory descriptor 
lists. The headers and the remainder of the payload are located in different areas 
in virtual memory, instead of in one contiguous virtual memory block. This split of 
the header and the data portions of the packets into multiple memory descriptor 
lists increases system performance, and reduces CPU use through intelligent 
cache management.

You should enable HDS in Microsoft Windows virtualized environments like 
Hyper-V.