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net: ena: fix update of interrupt moderation register 

Current implementation always updates the interrupt register with
the smoothed_interval of the rx_ring. However this should be
done only in case of adaptive interrupt moderation. If non-adaptive
interrupt moderation is used, the non-adaptive interrupt moderation
interval should be used. This commit fixes that.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arthur Kiyanovski 2019-09-16 14:31:34 +03:00 committed by David S. Miller
parent 3ced8cbdf7
commit 7b8a28787e
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/amazon/ena/ena_netdev.c
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@ -1187,12 +1187,15 @@ static void ena_unmask_interrupt(struct ena_ring *tx_ring,
struct ena_ring *rx_ring)
{
struct ena_eth_io_intr_reg intr_reg;
u32 rx_interval = ena_com_get_adaptive_moderation_enabled(rx_ring->ena_dev) ?
rx_ring->smoothed_interval :
ena_com_get_nonadaptive_moderation_interval_rx(rx_ring->ena_dev);
/* Update intr register: rx intr delay,
* tx intr delay and interrupt unmask
*/
ena_com_update_intr_reg(&intr_reg,
rx_ring->smoothed_interval,
rx_interval,
tx_ring->smoothed_interval,
true);