[PATCH v2 2/3] net/ncsi: add NCSI Intel OEM command to keep PHY up

[Ivan Mikhaylov]

On Mon, 2021-07-12 at 10:01 +0000, Joel Stanley wrote:
> On Thu, 8 Jul 2021 at 12:27, Ivan Mikhaylov <i.mikhaylov at yadro.com> wrote:
> > 
> > This allows to keep PHY link up and prevents any channel resets during
> > the host load.
> > 
> > It is KEEP_PHY_LINK_UP option(Veto bit) in i210 datasheet which
> > block PHY reset and power state changes.
> 
> How about using runtime configuration over using kconfig for this, so
> the same kernel config can be used on different machines. Something
> device tree based?

As I see there is already the way with Kconfig option, with previous
broadcom/mellanox get mac address and set affinity for mellanox commands.
I'm not sure about dts based solution. As I see there is two ways:
1. make everything related OEM into dts based options
2. or this way, with Kconfig

> 
> Another option is to use the netlink handler to send the OEM command
> from userspace. Eddie has worked on this for an IBM machine, and I've
> asked him to post those changes. I would prefer the kernel option
> though.
> 

I like the idea, it may help with debugging.

Thanks.
>