From: Gal Pressman <galp@mellanox.com>
Date: Tue, 26 Dec 2017 13:44:49 +0200
Subject: net/mlx5e: Keep updating ethtool statistics when the interface is
 down
Patch-mainline: v4.15-rc9
Git-commit: e556f6dd47eda62cbb046fa92e03265245a1537f
References: bsc#1046303 FATE#322944

ethtool statistics should be updated even when the interface is down
since it shows more than just netdev counters, which might change while
the logical link is down.
One useful use case, for example, is when running RoCE traffic over the
interface (while the logical link is down, but physical link is up) and
examining rx_prioX_bytes.

Fixes: f62b8bb8f2d3 ("net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -349,8 +349,7 @@ void mlx5e_ethtool_get_ethtool_stats(str
 		return;
 
 	mutex_lock(&priv->state_lock);
-	if (test_bit(MLX5E_STATE_OPENED, &priv->state))
-		mlx5e_update_stats(priv, true);
+	mlx5e_update_stats(priv, true);
 	channels = &priv->channels;
 	mutex_unlock(&priv->state_lock);