From 38463e2c290426262cd9a75fe66cbbe2925a68c2 Mon Sep 17 00:00:00 2001 From: Eugenia Emantayev Date: Thu, 12 Sep 2013 18:11:20 +0300 Subject: [PATCH] net/mlx4_en: Check device state when setting coalescing When the device is down, CQs are freed. We must check the device state to avoid issuing firmware commands on non existing CQs. CC: Or Gerlitz Signed-off-by: Eugenia Emantayev Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index a28cd801a236..0c750985f47e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -53,9 +53,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv) for (i = 0; i < priv->tx_ring_num; i++) { priv->tx_cq[i].moder_cnt = priv->tx_frames; priv->tx_cq[i].moder_time = priv->tx_usecs; - err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]); - if (err) - return err; + if (priv->port_up) { + err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]); + if (err) + return err; + } } if (priv->adaptive_rx_coal) @@ -65,9 +67,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv) priv->rx_cq[i].moder_cnt = priv->rx_frames; priv->rx_cq[i].moder_time = priv->rx_usecs; priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; - err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]); - if (err) - return err; + if (priv->port_up) { + err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]); + if (err) + return err; + } } return err; -- 2.30.2