netdev - [net-next v2 11/13] dpaa_eth: extend delays in ndo

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Date:   Thu, 31 Oct 2019 16:37:57 +0200
From:   Madalin Bucur <madalin.bucur@....com>
To:     davem@...emloft.net, netdev@...r.kernel.org
Cc:     roy.pledge@....com, jakub.kicinski@...ronome.com, joe@...ches.com,
        Madalin Bucur <madalin.bucur@....com>
Subject: [net-next v2 11/13] dpaa_eth: extend delays in ndo_stop

Make sure all the frames that are in flight have time to be processed
before the interface is completely brought down. Add a missing delay
for the Rx path.

Signed-off-by: Madalin Bucur <madalin.bucur@....com>
---
 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index ee22ed3207b4..9e6080aaf77a 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -266,7 +266,7 @@ static int dpaa_stop(struct net_device *net_dev)
 	/* Allow the Fman (Tx) port to process in-flight frames before we
 	 * try switching it off.
 	 */
-	usleep_range(5000, 10000);
+	msleep(200);
 
 	err = mac_dev->stop(mac_dev);
 	if (err < 0)
@@ -283,6 +283,8 @@ static int dpaa_stop(struct net_device *net_dev)
 		phy_disconnect(net_dev->phydev);
 	net_dev->phydev = NULL;
 
+	msleep(200);
+
 	return err;
 }
 
-- 
2.1.0