On 2025-03-28 06:27, Thomas Gleixner wrote:
You are completely missing the point. This is not a problem restricted
to PCI/MSI interrupts.
Thanks for all suggestions! I will investigate more and check if we can
fix it in device driver.
Looks several device drivers in kernel use two kernel APIs to set/clean
IRQ_NO_BALACING status for a given irq.
irq_set_status_flags(irq, IRQ_NO_BALANCING);
irq_clear_status_flags(irq, IRQ_NO_BALANCING);
With these two APIs, device driver can decide if using kernel irq
balance or setting irq affinity by driver itself?
So we can set/clear IRQ_NO_BALANCING during reset.
Thanks,
Wendy
