Re: [PATCH 0/3] Enable multiple MSI feature in pSeries

Alexander Gordeev
2013-05-21T14:45:08Z

On Tue, Jan 15, 2013 at 03:38:53PM +0800, Mike Qiu wrote:
> The test results is shown by 'cat /proc/interrups':
> CPU0 CPU1 CPU2 CPU3
> 16: 240458 261601 226310 200425 XICS Level IPI
> 17: 0 0 0 0 XICS Level RAS_EPOW
> 18: 10 0 3 2 XICS Level hvc_console
> 19: 122182 28481 28527 28864 XICS Level ibmvscsi
> 20: 506 7388226 108 118 XICS Level eth0
> 21: 6 5 5 5 XICS Level host1-0
> 22: 817 814 816 813 XICS Level host1-1

Hi Mike,

I am curious if pSeries firmware allows changing affinity masks independently
for multiple MSIs? I.e. in your example, would it be possible to assign IRQ21
and IRQ22 to different CPUs?

Thanks!

> LOC: 398077 316725 231882 203049 Local timer interrupts
> SPU: 1659 919 961 903 Spurious interrupts
> CNT: 0 0 0 0 Performance
> monitoring interrupts
> MCE: 0 0 0 0 Machine check exceptions

--
Regards,
Alexander Gordeev
agordeev@redhat.com