On Wed, 14 Aug 2024 19:01:40 +0100 Joe Damato wrote: > If it is, then the only option is to have the drivers pass in their > IRQ affinity masks, as Stanislav suggested, to avoid adding that > call to the hot path. > > If not, then the IRQ from napi_struct can be used and the affinity > mask can be generated on every napi poll. i40e/gve/iavf would need > calls to netif_napi_set_irq to set the IRQ mapping, which seems to > be straightforward. It's a bit sad to have the generic solution blocked. cpu_rmap_update() is exported. Maybe we can call it from our notifier? rmap lives in struct net_device
