This debug output is not really an error message since mac reset can fail
if the phy clocks are gated, specifically when the phy has been placed in
a powered down or isolation mode. The netdev output masks were changed from
err to dbg, and comments added in the code.
Signed-off-by: Vince Bridgers <[email protected]>
---
drivers/net/ethernet/altera/altera_tse_main.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 760c72c..996bdf1 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1099,8 +1099,12 @@ static int tse_open(struct net_device *dev)
spin_lock(&priv->mac_cfg_lock);
ret = reset_mac(priv);
+ /* Note that reset_mac will fail if the clocks are gated by the PHY
+ * due to the PHY being put into isolation or power down mode.
+ * This is not an error if reset fails due to no clock.
+ */
if (ret)
- netdev_err(dev, "Cannot reset MAC core (error: %d)\n", ret);
+ netdev_dbg(dev, "Cannot reset MAC core (error: %d)\n", ret);
ret = init_mac(priv);
spin_unlock(&priv->mac_cfg_lock);
@@ -1204,8 +1208,12 @@ static int tse_shutdown(struct net_device *dev)
spin_lock(&priv->tx_lock);
ret = reset_mac(priv);
+ /* Note that reset_mac will fail if the clocks are gated by the PHY
+ * due to the PHY being put into isolation or power down mode.
+ * This is not an error if reset fails due to no clock.
+ */
if (ret)
- netdev_err(dev, "Cannot reset MAC core (error: %d)\n", ret);
+ netdev_dbg(dev, "Cannot reset MAC core (error: %d)\n", ret);
priv->dmaops->reset_dma(priv);
free_skbufs(dev);
--
1.9.1
From: Vince Bridgers <[email protected]>
Date: Thu, 12 Feb 2015 10:47:45 -0600
> This debug output is not really an error message since mac reset can fail
> if the phy clocks are gated, specifically when the phy has been placed in
> a powered down or isolation mode. The netdev output masks were changed from
> err to dbg, and comments added in the code.
>
> Signed-off-by: Vince Bridgers <[email protected]>
Also applied to net-next, thanks.