blob: c35c84932366c53f00f635e2fc32fc9cc8f7fe6f [file] [log] [blame]
From 6dd8aa4386a4b576f3f0222bd7776c21c4a79014 Mon Sep 17 00:00:00 2001
From: Arthur Kiyanovski <>
Date: Tue, 11 Feb 2020 15:17:42 +0000
Subject: [PATCH] net: ena: add missing ethtool TX timestamping indication
commit cf6d17fde93bdda23c9b02dd5906a12bf8c55209 upstream.
Current implementation of the driver calls skb_tx_timestamp()to add a
software tx timestamp to the skb, however the software-transmit capability
is not reported in ethtool -T.
This commit updates the ethtool structure to report the software-transmit
capability in ethtool -T using the standard ethtool_op_get_ts_info().
This function reports all software timestamping capabilities (tx and rx),
as well as setting phc_index = -1. phc_index is the index of the PTP
hardware clock device that will be used for hardware timestamps. Since we
don't have such a device in ENA, using the default -1 value is the correct
Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Ezequiel Lara Gomez <>
Signed-off-by: Arthur Kiyanovski <>
Signed-off-by: David S. Miller <>
Signed-off-by: Paul Gortmaker <>
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index fe596bc30a96..de8c78ae9801 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -819,6 +819,7 @@ static const struct ethtool_ops ena_ethtool_ops = {
.get_channels = ena_get_channels,
.get_tunable = ena_get_tunable,
.set_tunable = ena_set_tunable,
+ .get_ts_info = ethtool_op_get_ts_info,
void ena_set_ethtool_ops(struct net_device *netdev)