Commit 0eda8479 authored Sep 16, 2019 by Arthur Kiyanovski Committed by David S. Miller Sep 16, 2019

net: ena: fix retrieval of nonadaptive interrupt moderation intervals



Nonadaptive interrupt moderation intervals are assigned the value set
by the user in ethtool -C divided by ena_dev->intr_delay_resolution.

Therefore when the user tries to get the nonadaptive interrupt moderation
intervals with ethtool -c the code needs to multiply the saved value
by ena_dev->intr_delay_resolution.

The current code erroneously divides instead of multiplying in ethtool -c.
This patch fixes this.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 7b8a2878

drivers/net/ethernet/amazon/ena/ena_ethtool.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -310,14 +310,15 @@ static int ena_get_coalesce(struct net_device *net_dev,
		/* the devie doesn't support interrupt moderation */
		return -EOPNOTSUPP;
		}

		coalesce->tx_coalesce_usecs =
		ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) /
		ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) *
		ena_dev->intr_delay_resolution;

		if (!ena_com_get_adaptive_moderation_enabled(ena_dev))
		coalesce->rx_coalesce_usecs =
		ena_com_get_nonadaptive_moderation_interval_rx(ena_dev)
		/ ena_dev->intr_delay_resolution;
		* ena_dev->intr_delay_resolution;

		coalesce->use_adaptive_rx_coalesce =
		ena_com_get_adaptive_moderation_enabled(ena_dev);