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mlx4_en: Coalescing target is equal for all mtu's

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The interrupt moderation should not depend on number of incoming
bytes, but on number of incoming packets.
The previous scheme caused very high interrupts rate for small
messages when big MTU was configured.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yevgeny Petrilin
2009-06-01 23:23:13 +00:00
committed by David S. Miller
parent 3c2fa83f9c
commit 3db36fb2c8
3 changed files with 4 additions and 5 deletions
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3
drivers/net/mlx4/en_ethtool.c
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@@ -268,8 +268,7 @@ static int mlx4_en_set_coalesce(struct net_device *dev,
priv->rx_frames = (coal->rx_max_coalesced_frames ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TARGET /
priv->dev->mtu + 1 :
MLX4_EN_RX_COAL_TARGET :
coal->rx_max_coalesced_frames;
priv->rx_usecs = (coal->rx_coalesce_usecs ==
MLX4_EN_AUTO_CONF) ?