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about the CheckSumOffload parameter, refer to Table
Stateless
Receive Side Scaling
QLogic 8100 Series Adapters supports receive side scaling (RSS) in Microsoft Windows environments for nonoffloaded IP/TCP traffic. When a packet arrives on a network interface, an interrupt is sent to the network driver. The network driver then executes a deferred procedure call (DPC), which runs on the same CPU as the interrupt. With RSS disabled, only one DPC can execute at a time. With RSS enabled, up to four parallel DPCs can run on four different processors or cores, which enables the simultaneous receive processing of incoming packets (Figure
Figure 6-4. Receive Side Scaling Concepts
With RSS enabled, the NIC driver implements a hash function to distribute inbound packets across CPUs.
Parallel processing of inbound packets while maintaining
Load balancing of network processing across CPUs in an symmetrical multiprocessing (SMP) system
Cache locality