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[net-next,11/13] net: ena: update driver's rx drop statistics

Message ID 1496959285-8632-12-git-send-email-netanel@amazon.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Belgazal, Netanel June 8, 2017, 10:01 p.m. UTC 
From: Netanel Belgazal <netanel@amazon.com>

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>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 7f31f4c..4540cd3 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -3483,8 +3483,17 @@  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,