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net: ena: update driver's rx drop statistics

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rx drop counter is reported by the device in the keep-alive
event.
update the driver's counter with the device counter.

Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Netanel Belgazal 2017-06-23 11:21:59 +03:00 committed by David S. Miller
parent 3ae5907c61
commit 11a9a46019
1 changed files with 9 additions and 0 deletions
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9
drivers/net/ethernet/amazon/ena/ena_netdev.c
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@ -3478,8 +3478,17 @@ static void ena_keep_alive_wd(void *adapter_data,
struct ena_admin_aenq_entry *aenq_e)
{
struct ena_adapter *adapter = (struct ena_adapter *)adapter_data;
struct ena_admin_aenq_keep_alive_desc *desc;
u64 rx_drops;
desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;
adapter->last_keep_alive_jiffies = jiffies;
rx_drops = ((u64)desc->rx_drops_high << 32) | desc->rx_drops_low;
u64_stats_update_begin(&adapter->syncp);
adapter->dev_stats.rx_drops = rx_drops;
u64_stats_update_end(&adapter->syncp);
}
static void ena_notification(void *adapter_data,