net: ena: fix incorrect update of intr_delay_resolution

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ena_dev->intr_moder_rx/tx_interval save the intervals received from the
user after dividing them by ena_dev->intr_delay_resolution. Therefore
when intr_delay_resolution changes, the code needs to first mutiply
intr_moder_rx/tx_interval by the previous intr_delay_resolution to get
the value originally given by the user, and only then divide it by the
new intr_delay_resolution.

Current code does not first multiply intr_moder_rx/tx_interval by the old
intr_delay_resolution. This commit fixes it.

Also initialize ena_dev->intr_delay_resolution to be 1.

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

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Arthur Kiyanovski 2019-09-16 14:31:36 +03:00 • committed by David S. Miller

parent 0eda847953

commit 79226cea4a

3 changed files with 19 additions and 4 deletions

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21

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

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1

drivers/net/ethernet/amazon/ena/ena_com.h

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1

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

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