netdev - RE: [patch net-next 4/4] net: devlink: expose default flash update target

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Date:   Fri, 19 Aug 2022 22:07:41 +0000
From:   "Keller, Jacob E" <jacob.e.keller@...el.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     Jiri Pirko <jiri@...nulli.us>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "idosch@...dia.com" <idosch@...dia.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "saeedm@...dia.com" <saeedm@...dia.com>,
        "vikas.gupta@...adcom.com" <vikas.gupta@...adcom.com>,
        "gospo@...adcom.com" <gospo@...adcom.com>
Subject: RE: [patch net-next 4/4] net: devlink: expose default flash update
 target



> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Friday, August 19, 2022 2:46 PM
> To: Keller, Jacob E <jacob.e.keller@...el.com>
> Cc: Jiri Pirko <jiri@...nulli.us>; netdev@...r.kernel.org; davem@...emloft.net;
> idosch@...dia.com; pabeni@...hat.com; edumazet@...gle.com;
> saeedm@...dia.com; vikas.gupta@...adcom.com; gospo@...adcom.com
> Subject: Re: [patch net-next 4/4] net: devlink: expose default flash update target
> 
> On Fri, 19 Aug 2022 20:59:28 +0000 Keller, Jacob E wrote:
> > > My intuition would be that if you specify no component you're flashing
> > > the entire device. Is that insufficient? Can you explain the use case?
> > >
> > > Also Documentation/ needs to be updated.
> >
> > Some of the components in ice include the DDP which has an info
> > version, but which is not part of the flash but is loaded by the
> > driver during initialization.
> 
> Right "entire device" as in "everything in 'stored'". Runtime loaded
> stuff should not be listed in "stored" and therefore not be considered
> "flashable". Correct?

Yes I believe we don't list those as stored.

We do have some extra version information that is reported through multiple info lines, i.e. we report:

fw.mgmt
fw.mgmt.api
fw.mgmt.build

where the .api and .build are sub-version fields of the fw.mgmt and can potentially give further information but are just a part of the fw.mgmt component. They can't be flashed separately.

Thanks,
Jake