From c7e5c423cb59caddbf296717af484dcbacd76a3f Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Wed, 29 Jun 2022 21:13:35 +0300
Subject: [PATCH] net: gianfar: add support for software TX timestamping
These are required by certain network profiling applications in order to
measure delays.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20220629181335.3800821-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/freescale/gianfar.c | 1 +
drivers/net/ethernet/freescale/gianfar_ethtool.c | 6 +++++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 3dc9369a33f77..e7bf1524b68ee 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1944,6 +1944,7 @@ static netdev_tx_t gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
lstatus |= BD_LFLAG(TXBD_CRC | TXBD_READY) | skb_headlen(skb);
}
+ skb_tx_timestamp(skb);
netdev_tx_sent_queue(txq, bytes_sent);
gfar_wmb();
diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c
index 9a2c16d69e2c1..81fb687301381 100644
--- a/drivers/net/ethernet/freescale/gianfar_ethtool.c
+++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c
@@ -1457,6 +1457,7 @@ static int gfar_get_ts_info(struct net_device *dev,
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
return 0;
}
@@ -1474,7 +1475,10 @@ static int gfar_get_ts_info(struct net_device *dev,
info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
- SOF_TIMESTAMPING_RAW_HARDWARE;
+ SOF_TIMESTAMPING_RAW_HARDWARE |
+ SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_SOFTWARE;
info->tx_types = (1 << HWTSTAMP_TX_OFF) |
(1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
--
2.30.2