On Tue, Feb 04, 2025 at 03:06:17PM -0700, Ahmed Zaki wrote: > Drivers usually need to re-apply the user-set IRQ affinity to their IRQs > after reset. However, since there can be only one IRQ affinity notifier > for each IRQ, registering IRQ notifiers conflicts with the ARFS rmap > management in the core (which also registers separate IRQ affinity > notifiers). > > Move the IRQ affinity management to the napi struct. This way we can have > a unified IRQ notifier to re-apply the user-set affinity and also manage > the ARFS rmaps. The first patch moves the ARFS rmap management to CORE. > The second patch adds the IRQ affinity mask to napi_config and re-applies > the mask after reset. Patches 3-5 use the new API for bnxt, ice and idpf > drivers.
If there's another version maybe adding this to netdevsim might be good? Was just thinking that if one day in the distant future netdev-genl was extended to expose the per NAPI affinity mask, a test could probably be written.
