[Intel-wired-lan] [net-next, v2 1/2] ice: Accumulate HW and Netdev statistics over reset

[G, GurucharanX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of
> Benjamin Mikailenko
> Sent: Tuesday, October 11, 2022 12:52 AM
> To: intel-wired-lan at lists.osuosl.org
> Cc: Mikailenko, Benjamin <benjamin.mikailenko at intel.com>
> Subject: [Intel-wired-lan] [net-next, v2 1/2] ice: Accumulate HW and Netdev
> statistics over reset
> 
> Resets happen with or without user interaction. For example, incidents such
> as TX hang or a reconfiguration of parameters will result in a reset.
> During reset, hardware and software statistics were set to zero. This created
> an issue for the user where a reset happens in the background, statistics set
> to zero, and the user checks statistics expecting them to be populated.
> 
> To ensure this doesn't happen, keep accumulating stats over reset.
> 
> 1. Remove function calls which reset hardware and netdev statistics.
> 2. Do not rollover statistics in ice_stat_update40 during reset.
> 
> Signed-off-by: Benjamin Mikailenko <benjamin.mikailenko at intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice.h         |  1 +
>  drivers/net/ethernet/intel/ice/ice_dcb_lib.c |  3 ++
>  drivers/net/ethernet/intel/ice/ice_lib.c     |  7 +++++
>  drivers/net/ethernet/intel/ice/ice_main.c    | 30 +++++++++++++++++---
>  4 files changed, 37 insertions(+), 4 deletions(-)
> 

Tested-by: Gurucharan <gurucharanx.g at intel.com> (A Contingent worker at Intel)