netdev - [PATCH net-next 5/7] ice: remove rx_len

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Date: Tue,  2 Jan 2024 14:04:21 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Jan Sokolowski <jan.sokolowski@...el.com>,
	anthony.l.nguyen@...el.com,
	Mateusz Polchlopek <mateusz.polchlopek@...el.com>,
	Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com>
Subject: [PATCH net-next 5/7] ice: remove rx_len_errors statistic

From: Jan Sokolowski <jan.sokolowski@...el.com>

It was found that this statistic is incorrectly
reported by HW and thus, useless.

As RX length error statistics are shown to the
end user when requested, the values reported
are misleading.

Thus, that value is no longer reported and
doesn't count anymore when adding all rx errors.

Signed-off-by: Jan Sokolowski <jan.sokolowski@...el.com>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@...el.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c | 1 -
 drivers/net/ethernet/intel/ice/ice_main.c    | 5 -----
 drivers/net/ethernet/intel/ice/ice_type.h    | 1 -
 3 files changed, 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 2244d41fd933..a19b06f18e40 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -129,7 +129,6 @@ static const struct ice_stats ice_gstrings_pf_stats[] = {
 	ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
 	ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
 	ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
-	ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
 	ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
 	ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
 	ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 2fa46bacf5ba..63a5fb701ada 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -6834,13 +6834,11 @@ void ice_update_vsi_stats(struct ice_vsi *vsi)
 		cur_ns->rx_crc_errors = pf->stats.crc_errors;
 		cur_ns->rx_errors = pf->stats.crc_errors +
 				    pf->stats.illegal_bytes +
-				    pf->stats.rx_len_errors +
 				    pf->stats.rx_undersize +
 				    pf->hw_csum_rx_error +
 				    pf->stats.rx_jabber +
 				    pf->stats.rx_fragments +
 				    pf->stats.rx_oversize;
-		cur_ns->rx_length_errors = pf->stats.rx_len_errors;
 		/* record drops from the port level */
 		cur_ns->rx_missed_errors = pf->stats.eth.rx_discards;
 	}
@@ -6980,9 +6978,6 @@ void ice_update_pf_stats(struct ice_pf *pf)
 			  &prev_ps->mac_remote_faults,
 			  &cur_ps->mac_remote_faults);
 
-	ice_stat_update32(hw, GLPRT_RLEC(port), pf->stat_prev_loaded,
-			  &prev_ps->rx_len_errors, &cur_ps->rx_len_errors);
-
 	ice_stat_update32(hw, GLPRT_RUC(port), pf->stat_prev_loaded,
 			  &prev_ps->rx_undersize, &cur_ps->rx_undersize);
 
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 5f04b1318c9e..41ab6d7bbd9e 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -1003,7 +1003,6 @@ struct ice_hw_port_stats {
 	u64 error_bytes;		/* errbc */
 	u64 mac_local_faults;		/* mlfc */
 	u64 mac_remote_faults;		/* mrfc */
-	u64 rx_len_errors;		/* rlec */
 	u64 link_xon_rx;		/* lxonrxc */
 	u64 link_xoff_rx;		/* lxoffrxc */
 	u64 link_xon_tx;		/* lxontxc */
-- 
2.41.0