Commit 2156d9a8 authored by Shawn Bohrer's avatar Shawn Bohrer Committed by David S. Miller

mlx4_en: Only cycle port if HW timestamp config changes

If the hwtstamp_config matches what is currently set for the device then
simply return.  Without this change any program that tries to enable
hardware timestamps will cause the link to cycle even if hardware
timstamps were already enabled.
Signed-off-by: default avatarShawn Bohrer <sbohrer@rgmadvisors.com>
Acked-By: default avatarHadar Hen Zion <hadarh@mellanox.com>
Acked-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ad7d4eae
...@@ -42,6 +42,10 @@ int mlx4_en_timestamp_config(struct net_device *dev, int tx_type, int rx_filter) ...@@ -42,6 +42,10 @@ int mlx4_en_timestamp_config(struct net_device *dev, int tx_type, int rx_filter)
int port_up = 0; int port_up = 0;
int err = 0; int err = 0;
if (priv->hwtstamp_config.tx_type == tx_type &&
priv->hwtstamp_config.rx_filter == rx_filter)
return 0;
mutex_lock(&mdev->state_lock); mutex_lock(&mdev->state_lock);
if (priv->port_up) { if (priv->port_up) {
port_up = 1; port_up = 1;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment