This is a note to let you know that I've just added the patch titled
net: stmmac: use netif_tx_start|stop_all_queues() function
to the 5.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-stmmac-use-netif_tx_start-stop_all_queues-functi.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 86f99dfd48943161fd25878b0b3d753377d0c657
Author: Ong Boon Leong <boon.leong.ong@xxxxxxxxx>
Date: Tue Sep 15 09:28:40 2020 +0800
net: stmmac: use netif_tx_start|stop_all_queues() function
[ 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@xxxxxxxxx>
Signed-off-by: Voon Weifeng <weifeng.voon@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 1af25da4461da..122a0697229af 100644
--- 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) &&
@@ -2872,7 +2846,7 @@ 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;
@@ -2915,8 +2889,6 @@ 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++)
@@ -5086,7 +5058,6 @@ int stmmac_suspend(struct device *dev)
mutex_lock(&priv->lock);
netif_device_detach(ndev);
- stmmac_stop_all_queues(priv);
stmmac_disable_all_queues(priv);
@@ -5213,8 +5184,6 @@ 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) {
