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net: stmmac: ensure tx function is not running in stmmac_xdp_release()

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When stmmac_xdp_release() is called, there is a possibility that tx
function is still running on other queues which will lead to tx queue
timed out and reset adapter.

This commit ensure that tx function is not running xdp before release
flow continue to run.

Fixes: ac746c8520 ("net: stmmac: enhance XDP ZC driver level switching performance")
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: Mohd Faizal Abdul Rahim <faizal.abdul.rahim@intel.com>
Signed-off-by: Noor Azura Ahmad Tarmizi <noor.azura.ahmad.tarmizi@intel.com>
Link: https://lore.kernel.org/r/20221110064552.22504-1-noor.azura.ahmad.tarmizi@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Mohd Faizal Abdul Rahim 2022-11-10 14:45:52 +08:00 committed by Jakub Kicinski
parent e2a54350dc
commit 77711683a5
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -6548,6 +6548,9 @@ void stmmac_xdp_release(struct net_device *dev)
struct stmmac_priv *priv = netdev_priv(dev);
u32 chan;
/* Ensure tx function is not running */
netif_tx_disable(dev);
/* Disable NAPI process */
stmmac_disable_all_queues(priv);