Re: [PATCH] PCI/LINK: Account for BW notification in vector calculation

Bjorn Helgaas
2019-04-23T17:10:52Z

On Tue, Apr 23, 2019 at 09:33:53AM -0500, Alex G wrote:
> On 4/22/19 7:33 PM, Alex Williamson wrote:
> > There is nothing wrong happening here that needs to fill logs. I
> > thought maybe if I enabled notification of autonomous bandwidth
> > changes that it might categorize these as something we could
> > ignore, but it doesn't. How can we identify only cases where this
> > is an erroneous/noteworthy situation? Thanks,
>
> You don't. Ethernet doesn't. USB doesn't. This logging behavior is
> consistent with every other subsystem that deals with multi-speed links.

Can you point me to the logging in these other subsystems so I can
learn more about how they deal with this?

I agree that emitting log messages for normal and expected events will
lead to user confusion and we need to do something.

e8303bb7a75c ("PCI/LINK: Report degraded links via link bandwidth
notification") was merged in v5.1-rc1, so we still have (a little)
time to figure this out before v5.1.

Bjorn