netdev - Re: [RFC PATCH 0/4] r8169: support dash

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Date:   Wed, 8 Dec 2021 13:37:54 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Hayes Wang <hayeswang@...ltek.com>
Cc:     "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        nic_swsd <nic_swsd@...ltek.com>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: Re: [RFC PATCH 0/4] r8169: support dash

On Wed, 8 Dec 2021 07:53:28 +0000 Hayes Wang wrote:
> Jakub Kicinski <kuba@...nel.org>
> > Sent: Wednesday, December 8, 2021 12:21 PM  
> > > Could devlink param be used for more than 4 bytes settings?
> > > At least the IPv6 address is longer.  
> > 
> > We can add a new devlink sub-command and driver callback in that case.  
> 
> Excuse me. Do you mean someone will add it? Then, I could use it.
> Or, I have to add it.

You'd need to write all the code.

> > > Besides, we need the information of SMBIOS which could
> > > be 4K ~ 8K bytes data. Is there any way we could transmit
> > > it to firmware?  
> > 
> > Is structure of that data defined by some DMTF standard?  
> Yes.

That's good, as long as the kernel parses and validates the messages
the exact interface to user space does not matter that much.