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ice: Accumulate HW and Netdev statistics over reset

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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@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Benjamin Mikailenko
2022-11-18 16:20:01 -05:00
committed by Tony Nguyen
parent 1d0e28a9be
commit 2fd5e433cd
4 changed files with 37 additions and 4 deletions
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3
drivers/net/ethernet/intel/ice/ice_dcb_lib.c
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@ -881,6 +881,9 @@ void ice_update_dcb_stats(struct ice_pf *pf)
prev_ps = &pf->stats_prev;
cur_ps = &pf->stats;
if (ice_is_reset_in_progress(pf->state))
pf->stat_prev_loaded = false;
for (i = 0; i < 8; i++) {
ice_stat_update32(hw, GLPRT_PXOFFRXC(port, i),
pf->stat_prev_loaded,