Re: [RFC PATCH 6/8] nvdimm: add PPC64 'device-node' property

[Daniel Henrique Barboza]

On 6/15/21 6:33 AM, Aneesh Kumar K.V wrote:
> Daniel Henrique Barboza <danielhb413@gmail.com> writes:
>
> > The spapr-nvdimm driver is able to operate in two ways. The first
> > one is as a regular memory in which the NUMA node of the parent
> > pc-dimm class is used. The second mode, as persistent memory, allows for
> > a different NUMA node to be used based on the locality of the device.
> >
> > At this moment we don't have a way to express this second NUMA node for
> > the persistent memory mode. This patch introduces a new 'device-node'
> > property that will be used by the PPC64 spapr-nvdimm driver to set a
> > second NUMA node for the nvdimm.
>
> if device-node is not specified on the commandline, we should default to
> the same value of node= attribute? Right now I am finding this default
> to 0.


I agree. I fixed it in the next version to default to the 'node'
value when 'device-node' is omitted.



Daniel

> -aneesh