net: stmmac: use netif_tx_start|stop_all_queues() function

The current implementation of stmmac_stop_all_queues() and
stmmac_start_all_queues() will not work correctly when the value of
tx_queues_to_use is changed through ethtool -L DEVNAME rx N tx M command.

Also, netif_tx_start|stop_all_queues() are only needed in driver open()
and close() only.

Fixes: c22a3f48 net: stmmac: adding multiple napi mechanism

Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 178aa33..e2c579c 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -176,32 +176,6 @@ static void stmmac_enable_all_queues(struct stmmac_priv *priv)
        }
 }
 
-/**
- * stmmac_stop_all_queues - Stop all queues
- * @priv: driver private structure
- */
-static void stmmac_stop_all_queues(struct stmmac_priv *priv)
-{
-       u32 tx_queues_cnt = priv->plat->tx_queues_to_use;
-       u32 queue;
-
-       for (queue = 0; queue < tx_queues_cnt; queue++)
-               netif_tx_stop_queue(netdev_get_tx_queue(priv->dev, queue));
-}
-
-/**
- * stmmac_start_all_queues - Start all queues
- * @priv: driver private structure
- */
-static void stmmac_start_all_queues(struct stmmac_priv *priv)
-{
-       u32 tx_queues_cnt = priv->plat->tx_queues_to_use;
-       u32 queue;
-
-       for (queue = 0; queue < tx_queues_cnt; queue++)
-               netif_tx_start_queue(netdev_get_tx_queue(priv->dev, queue));
-}
-
 static void stmmac_service_event_schedule(struct stmmac_priv *priv)
 {
        if (!test_bit(STMMAC_DOWN, &priv->state) &&
@@ -2864,7 +2838,7 @@ static int stmmac_open(struct net_device *dev)
        }
 
        stmmac_enable_all_queues(priv);
-       stmmac_start_all_queues(priv);
+       netif_tx_start_all_queues(priv->dev);
 
        return 0;
 
@@ -2907,8 +2881,6 @@ static int stmmac_release(struct net_device *dev)
        phylink_stop(priv->phylink);
        phylink_disconnect_phy(priv->phylink);
 
-       stmmac_stop_all_queues(priv);
-
        stmmac_disable_all_queues(priv);
 
        for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++)
@@ -5116,7 +5088,6 @@ int stmmac_suspend(struct device *dev)
        mutex_lock(&priv->lock);
 
        netif_device_detach(ndev);
-       stmmac_stop_all_queues(priv);
 
        stmmac_disable_all_queues(priv);
 
@@ -5242,8 +5213,6 @@ int stmmac_resume(struct device *dev)
 
        stmmac_enable_all_queues(priv);
 
-       stmmac_start_all_queues(priv);
-
        mutex_unlock(&priv->lock);
 
        if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {