From: Dmitrii Golovanov <dmitrii.golovanov@intel.com>
Date: Tue, 2 Jul 2019 08:22:51 -0400
Subject: i40e: fix incorrect ethtool statistics veb and veb.tc_
Patch-mainline: v5.4-rc1
Git-commit: f21fa0606c383e8c7289ad89b4a610b441707d08
References: jsc#SLE-8025

This patch fixes missing call of i40e_update_veb_stats() in function
i40e_get_ethtool_stats() to update stats data of VEB and VEB TC
counters before they are written into ethtool buffer.
Before the patch ethtool counters may fell behind interface counters.

Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/i40e/i40e.h         |    1 +
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c |    8 +++++++-
 drivers/net/ethernet/intel/i40e/i40e_main.c    |    2 +-
 3 files changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -1021,6 +1021,7 @@ i40e_find_vsi_by_type(struct i40e_pf *pf
 	return NULL;
 }
 void i40e_update_stats(struct i40e_vsi *vsi);
+void i40e_update_veb_stats(struct i40e_veb *veb);
 void i40e_update_eth_stats(struct i40e_vsi *vsi);
 struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
 int i40e_fetch_switch_configuration(struct i40e_pf *pf,
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -2250,7 +2250,7 @@ static void i40e_get_ethtool_stats(struc
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
 	struct i40e_pf *pf = vsi->back;
-	struct i40e_veb *veb = pf->veb[pf->lan_veb];
+	struct i40e_veb *veb = NULL;
 	unsigned int i;
 	bool veb_stats;
 	u64 *p = data;
@@ -2273,8 +2273,14 @@ static void i40e_get_ethtool_stats(struc
 		goto check_data_pointer;
 
 	veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
+		     (pf->lan_veb < I40E_MAX_VEB) &&
 		     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
 
+	if (veb_stats) {
+		veb = pf->veb[pf->lan_veb];
+		i40e_update_veb_stats(veb);
+	}
+
 	/* If veb stats aren't enabled, pass NULL instead of the veb so that
 	 * we initialize stats to zero and update the data pointer
 	 * intelligently
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -677,7 +677,7 @@ void i40e_update_eth_stats(struct i40e_v
  * i40e_update_veb_stats - Update Switch component statistics
  * @veb: the VEB being updated
  **/
-static void i40e_update_veb_stats(struct i40e_veb *veb)
+void i40e_update_veb_stats(struct i40e_veb *veb)
 {
 	struct i40e_pf *pf = veb->pf;
 	struct i40e_hw *hw = &pf->hw;