Re: [PATCH 1/1] genirq/msi: Dynamic remove/add stroage adapter hits EEH

[Wen Xiong]

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