netdev - RE: [Intel-wired-lan] [PATCH iwl-next v5] ixgbe: add support for thermal sensor event reception

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Message-ID: <IA0PR11MB781394B4225982A8AED985A0AFD52@IA0PR11MB7813.namprd11.prod.outlook.com>
Date: Fri, 7 Mar 2025 22:00:43 +0000
From: "Lokan, JeremiahX J" <jeremiahx.j.lokan@...el.com>
To: "Jagielski, Jedrzej" <jedrzej.jagielski@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "andrew@...n.ch" <andrew@...n.ch>,
	"pmenzel@...gen.mpg.de" <pmenzel@...gen.mpg.de>, "horms@...nel.org"
	<horms@...nel.org>, "Jagielski, Jedrzej" <jedrzej.jagielski@...el.com>,
	"Kitszel, Przemyslaw" <przemyslaw.kitszel@...el.com>, "Polchlopek, Mateusz"
	<mateusz.polchlopek@...el.com>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next v5] ixgbe: add support for
 thermal sensor event reception

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf 
> Of Jedrzej Jagielski
> Sent: Tuesday, February 25, 2025 6:34 AM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@...el.com>; 
> netdev@...r.kernel.org; andrew@...n.ch; pmenzel@...gen.mpg.de; 
> horms@...nel.org; Jagielski, Jedrzej <jedrzej.jagielski@...el.com>; 
> Kitszel, Przemyslaw <przemyslaw.kitszel@...el.com>; Polchlopek, 
> Mateusz <mateusz.polchlopek@...el.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v5] ixgbe: add support for 
> thermal sensor event reception
>
> E610 NICs unlike the previous devices utilising ixgbe driver are 
> notified in the case of overheating by the FW ACI event.
>
> In event of overheat when threshold is exceeded, FW suspends all 
> traffic and sends overtemp event to the driver. Then driver logs 
> appropriate message and disables the adapter instance.
> The card remains in that state until the platform is rebooted.
>
> This approach is a solution to the fact current version of the
> E610 FW doesn't support reading thermal sensor data by the SW. So give 
> to user at least any info that overtemp event has occurred, without 
> interface disappearing from the OS without any note.
>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
> Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@...el.com>
> Reviewed-by: Simon Horman <horms@...nel.org>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
> ---
> v2,3,4 : commit msg tweaks
> v5: use ixgbe_down()
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c      | 4 ++++
>  drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h | 3 +++
>  2 files changed, 7 insertions(+)
Tested-by: Jeremiah Lokan < jeremiahx.j.lokan@...el.com> (A Contingent worker at Intel)