netdev - RE: [Intel-wired-lan] [PATCH iwl-next] i40e: add link_down

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Message-ID: <IA1PR11MB6241E13A129E9B62B6E1A7328B67A@IA1PR11MB6241.namprd11.prod.outlook.com>
Date: Wed, 28 May 2025 06:36:52 +0000
From: "Rinitha, SX" <sx.rinitha@...el.com>
To: Dawid Osuchowski <dawid.osuchowski@...ux.intel.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, Martyna Szapar-Mudlaw
	<martyna.szapar-mudlaw@...ux.intel.com>, Michal Swiatkowski
	<michal.swiatkowski@...ux.intel.com>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next] i40e: add link_down_events
 statistic

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Dawid Osuchowski
> Sent: 21 May 2025 19:54
> To: intel-wired-lan@...ts.osuosl.org
> Cc: netdev@...r.kernel.org; Dawid Osuchowski <dawid.osuchowski@...ux.intel.com>; Martyna Szapar-Mudlaw <martyna.szapar-mudlaw@...ux.intel.com>; Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next] i40e: add link_down_events statistic
>
> Introduce a link_down_events counter to the i40e driver, incremented each time the link transitions from up to down.
> This counter can help diagnose issues related to link stability, such as port flapping or unexpected link drops.
>
> The value is exposed via ethtool's get_link_ext_stats() interface.
>
> Co-developed-by: Martyna Szapar-Mudlaw <martyna.szapar-mudlaw@...ux.intel.com>
> Signed-off-by: Martyna Szapar-Mudlaw <martyna.szapar-mudlaw@...ux.intel.com>
> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
> Signed-off-by: Dawid Osuchowski <dawid.osuchowski@...ux.intel.com>
> ---
> Based on series [1] from Martyna where this was implemented for ixgbe and ice drivers.
>
> [1] https://lore.kernel.org/netdev/20250515105011.1310692-1-martyna.szapar-mudlaw@linux.intel.com/
> ---
> drivers/net/ethernet/intel/i40e/i40e.h         |  1 +
> drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 10 ++++++++++
> drivers/net/ethernet/intel/i40e/i40e_main.c    |  3 +++
> 3 files changed, 14 insertions(+)
>

Tested-by: Rinitha S <sx.rinitha@...el.com> (A Contingent worker at Intel)