IRQ affinity issue

HiFive Unmatched
1

Hi,

Does the Unmatched board’s IRQ controller support CPU affinity settings?

root@OpenWrt:/proc/irq/66# echo 1 > smp_affinity
ash: write error: Invalid argument

I am using OpenWrt 23.05.3, r23809-234f1a2efa, the IRQ 66 is attached to a RX/TX channel of Intel 82599es NIC, which is plugged in the PCIe slot.

Thanks,
dsw