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SubjectRe: [PATCH v3 21/27] powerpc/powernv/pmem: Add an IOCTL to request controller health & perf data
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On Wed, 2020-03-04 at 12:06 +0100, Frederic Barrat wrote:
>
> Le 28/02/2020 à 07:12, Andrew Donnellan a écrit :
> > On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > > From: Alastair D'Silva <alastair@d-silva.org>
> > >
> > > When health & performance data is requested from the controller,
> > > it responds with an error log containing the requested
> > > information.
> > >
> > > This patch allows the request to me issued via an IOCTL.
> >
> > A better explanation would be good - this IOCTL triggers a request
> > to
> > the controller to collect controller health/perf data, and the
> > controller will later respond with an error log that can be picked
> > up
> > via the error log IOCTL that you've defined earlier.
>
> And even more precisely (to also check my understanding):
>
> > this IOCTL triggers a request to
> > the controller to collect controller health/perf data, and the
> > controller will later respond
>
> by raising an interrupt to let the user app know that
>
> > an error log that can be picked up
> > via the error log IOCTL that you've defined earlier.
>
>
> The rest of the patch looks ok to me.
>
> Fred

Ok

--
Alastair D'Silva
Open Source Developer
Linux Technology Centre, IBM Australia
mob: 0423 762 819

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