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

[Mike Qiu]

于 2013/5/21 22:45, Alexander Gordeev 写道:

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?

Yes, as Ben says, this is very different from other firmware :)

Thanks
Mike

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

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