net/mlx4_en: Fix adaptive moderation cq update

When turning on adaptive_rx under adaptive moderation, the CQ's moderation
count wasn't updated according to rx_frames which resulted in too many
interrupts and bandwidth drop.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index b35f947..810aab0 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1323,6 +1323,7 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
                        priv->last_moder_time[ring] = moder_time;
                        cq = &priv->rx_cq[ring];
                        cq->moder_time = moder_time;
+                       cq->moder_cnt = priv->rx_frames;
                        err = mlx4_en_set_cq_moder(priv, cq);
                        if (err)
                                en_err(priv, "Failed modifying moderation for cq:%d\n",