From: Ong Boon Leong boon.leong.ong@intel.com
[ Upstream commit 9f19306d166688a73356aa636c62e698bf2063cc ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 33 +------------------ 1 file changed, 1 insertion(+), 32 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 982be75fde833..189cdb7633671 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -175,32 +175,6 @@ 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) && @@ -2737,7 +2711,7 @@ 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;
@@ -2778,8 +2752,6 @@ 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++) @@ -4770,7 +4742,6 @@ int stmmac_suspend(struct device *dev) mutex_lock(&priv->lock);
netif_device_detach(ndev); - stmmac_stop_all_queues(priv);
stmmac_disable_all_queues(priv);
@@ -4883,8 +4854,6 @@ 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)) {