netdev - Re: [PATCH net-next 00/10] mlxsw: Expose transceiver overheat counter

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Date:   Sun, 27 Sep 2020 13:27:58 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     idosch@...sch.org
Cc:     netdev@...r.kernel.org, kuba@...nel.org, amcohen@...dia.com,
        jiri@...dia.com, mlxsw@...dia.com, idosch@...dia.com
Subject: Re: [PATCH net-next 00/10] mlxsw: Expose transceiver overheat
 counter

From: Ido Schimmel <idosch@...sch.org>
Date: Sun, 27 Sep 2020 10:50:05 +0300

> From: Ido Schimmel <idosch@...dia.com>
> 
> Amit says:
> 
> An overheated transceiver can be the root cause of various network
> problems such as link flapping. Counting the number of times a
> transceiver's temperature was higher than its configured threshold can
> therefore help in debugging such issues.
> 
> This patch set exposes a transceiver overheat counter via ethtool. This
> is achieved by configuring the Spectrum ASIC to generate events whenever
> a transceiver is overheated. The temperature thresholds are queried from
> the transceiver (if available) and set to the default otherwise.
> 
> Example:
> 
> # ethtool -S swp1
> ...
> transceiver_overheat: 2
> 
> Patch set overview:
> 
> Patches #1-#3 add required device registers
> Patches #4-#5 add required infrastructure in mlxsw to configure and
> count overheat events
> Patches #6-#9 gradually add support for the transceiver overheat counter
> Patch #10 exposes the transceiver overheat counter via ethtool

Series applied, thanks.