netdev - Re: [PATCH net-next v4 0/8] devlink: add device (driver) information API

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Message-Id: <20190201.153638.647120007389173035.davem@davemloft.net>
Date:   Fri, 01 Feb 2019 15:36:38 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     jakub.kicinski@...ronome.com
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        jiri@...nulli.us, andrew@...n.ch, f.fainelli@...il.com,
        mkubecek@...e.cz, eugenem@...com, jonathan.lemon@...il.com
Subject: Re: [PATCH net-next v4 0/8] devlink: add device (driver)
 information API

From: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date: Thu, 31 Jan 2019 10:50:39 -0800

> fw_version field in ethtool -i does not suit modern needs with 31
> characters being quite limiting on more complex systems.  There is
> also no distinction between the running and flashed versions of
> the firmware.
> 
> Since the driver information pertains to the entire device, rather
> than a particular netdev, it seems wise to move it do devlink, at
> the same time fixing the aforementioned issues.
> 
> The new API allows exposing the device serial number and versions
> of the components of the card - both hardware, firmware (running
> and flashed).  Driver authors can choose descriptive identifiers
> for the version fields.  A few version identifiers which seemed
> relevant for most devices have been added to the global devlink
> header.
> 
> Example:
 ...
> Last patch also includes a compat code for ethtool.  If driver
> reports no fw_version via the traditional ethtool API, ethtool
> can call into devlink and try to cram as many versions as possible
> into the 31 characters.
 ...

Series applied.