This is a note to let you know that I've just added the patch titled
net: ena: Set default value for RX interrupt moderation
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-ena-set-default-value-for-rx-interrupt-moderatio.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ecdf40feacba70bd3b8e6eeff4b7481689d5cc2a
Author: David Arinzon <darinzon@xxxxxxxxxx>
Date: Thu Dec 29 07:30:10 2022 +0000
net: ena: Set default value for RX interrupt moderation
[ Upstream commit e712f3e4920b3a1a5e6b536827d118e14862896c ]
RX ring can be NULL in XDP use cases where only TX queues
are configured. In this scenario, the RX interrupt moderation
value sent to the device remains in its default value of 0.
In this change, setting the default value of the RX interrupt
moderation to be the same as of the TX.
Fixes: 548c4940b9f1 ("net: ena: Implement XDP_TX action")
Signed-off-by: David Arinzon <darinzon@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 8f1b205e7333..b1533a45f645 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1836,8 +1836,9 @@ static void ena_adjust_adaptive_rx_intr_moderation(struct ena_napi *ena_napi)
static void ena_unmask_interrupt(struct ena_ring *tx_ring,
struct ena_ring *rx_ring)
{
+ u32 rx_interval = tx_ring->smoothed_interval;
struct ena_eth_io_intr_reg intr_reg;
- u32 rx_interval = 0;
+
/* Rx ring can be NULL when for XDP tx queues which don't have an
* accompanying rx_ring pair.
*/
