linux-kernel - Re: [PATCH net-next RFC v2 01/13] devlink: Add reload action option to devlink reload command

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Message-ID: <20200819185504.GB2575@nanopsycho.orion>
Date:   Wed, 19 Aug 2020 20:55:04 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Moshe Shemesh <moshe@...dia.com>,
        Moshe Shemesh <moshe@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next RFC v2 01/13] devlink: Add reload action option
 to devlink reload command

Wed, Aug 19, 2020 at 06:25:51PM CEST, kuba@...nel.org wrote:
>On Wed, 19 Aug 2020 17:18:15 +0200 Jiri Pirko wrote:
>>>>> I will add counters on which reload were done. reload_down()/up() can return
>>>>> which actions were actually done and devlink will show counters.  
>>>> Why a counter? Just return what was done over netlink reply.  
>>>
>>> Such counters can be useful for debugging, telling which reload actions were
>>> done on this dev from the point it was up.  
>> 
>> Not sure why this is any different from other commands...
>
>Good question, perhaps because reset is more "dangerous"? The question
>of "what reset this NIC" does come up in practice. With live activation
>in the mix, knowing if the NIC FW was live activated will be very
>useful for dissecting failures, I'd imagine.

Okay, fair enough. Yet, I think that the info in the reply as I
suggested would be also nice to have, while we are at it.