On Tue, 21 Nov 2023 05:54:37 -0800 Souradeep Chakrabarti wrote: > Existing MANA design assigns IRQ to every CPUs, including sibling hyper-threads > in a core. This causes multiple IRQs to work on same CPU and may reduce the network > performance with RSS. > > Improve the performance by adhering the configuration for RSS, which assigns IRQ > on HT cores. Drivers should not have to carry 120 LoC for something as basic as spreading IRQs. Please take a look at include/linux/topology.h and if there's nothing that fits your needs there - add it. That way other drivers can reuse it.
