Checks the Inner 元/L4 and the Outer 元 checksum.TX: Calculates the Inner 元/L4 and the Outer 元 checksum.Configuring Overlay Networking Stateless Hardware Offload With ConnectX® family adapter cards, data center operators can decouple the overlay network layer from the physical NIC performance, thus achieving native performance in the new network architecture. VXLAN/Geneve hardware offload enables the traditional offloads to be performed on the encapsulated traffic. Overlay Networking Stateless Hardware Offload 'DRSS' and 'RSS' parameters are disabled by default, and the system loads with standard NetQ mode.The system will load with only standard NetQ queues.The system will attempt to provide 'RSS' (NetQ RSS mode) default value.The system will attempt to provide the module parameters default values instead of the ones set by the user.If the 'DRSS' and 'RSS' module parameters set by the user cannot be enforced by the system due to lack of resources, the following actions are taken in a sequential order: Therefore, if both module parameters are set but the system lacks resources to support both, NetQ RSS will be used instead of DRSS. Using NetQ RSS is preferred over the Default Queue RSS. To query the 'DRSS' module parameter default, its minimal or maximal values, and restrictions, run a standard esxcli command. Module parameters 'DRSS' and 'RSS' will be ignored, thus the NetQ RSS, or the standard NetQ will be active.The new Default Queue RSS mode will be triggered and all hardware RX rings will be utilized, similar to the previous 'device_rss' functionality.If the 'device_rss' module parameter is enabled, the following functionality will be configured:
The 'drss' module parameter and 'device_rss' are mutually exclusive To configure DRSS, use the 'DRSS' module parameter which replaces the previously advertised 'device_rss' module parameter ('device_rss' is now obsolete). DRSS improves performance for large scale multicast traffic between hypervisors and Virtual Machines interfaces. Default Queue Receive Side Scaling (DRSS)ĭefault Queue RSS (DRSS) allows the user to configure multiple hardware queues backing up the default RX queue. Assigning each queue to different CPU cores allows better load balancing of the incoming traffic and improve performance. Receive Side Scaling (RSS) technology allows spreading incoming traffic between different receive descriptor queues.
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