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 <ogerlitz@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -53,9 +53,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
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for (i = 0; i < priv->tx_ring_num; i++) {
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priv->tx_cq[i].moder_cnt = priv->tx_frames;
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priv->tx_cq[i].moder_time = priv->tx_usecs;
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err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]);
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if (err)
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return err;
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if (priv->port_up) {
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err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]);
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if (err)
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return err;
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}
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}
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if (priv->adaptive_rx_coal)
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@ -65,9 +67,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
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priv->rx_cq[i].moder_cnt = priv->rx_frames;
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priv->rx_cq[i].moder_time = priv->rx_usecs;
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priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
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err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
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if (err)
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return err;
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if (priv->port_up) {
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err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
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if (err)
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return err;
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}
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}
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return err;
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