This is a note to let you know that I've just added the patch titled

qtnfmac: modify full Tx queue error reporting

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: qtnfmac-modify-full-tx-queue-error-reporting.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Mon Dec 18 13:28:59 CET 2017

From: Sergey Matyukevich sergey.matyukevich.os@quantenna.com Date: Mon, 30 Oct 2017 13:13:46 +0300 Subject: qtnfmac: modify full Tx queue error reporting

From: Sergey Matyukevich sergey.matyukevich.os@quantenna.com

[ Upstream commit e9931f984dd1e80adb3b5e095ef175fe383bc92d ]

Under heavy load it is normal that h/w Tx queue is almost full all the time and reclaim should be done before transmitting next packet. Warning still should be reported as well as s/w Tx queues should be stopped in the case when reclaim failed.

Signed-off-by: Sergey Matyukevich sergey.matyukevich.os@quantenna.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c +++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c @@ -643,11 +643,11 @@ static int qtnf_tx_queue_ready(struct qt { if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index, priv->tx_bd_num)) { - pr_err_ratelimited("reclaim full Tx queue\n"); qtnf_pcie_data_tx_reclaim(priv);

if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index, priv->tx_bd_num)) { + pr_warn_ratelimited("reclaim full Tx queue\n"); priv->tx_full_count++; return 0; }

Patches currently in stable-queue which might be from sergey.matyukevich.os@quantenna.com are

queue-4.14/qtnfmac-modify-full-tx-queue-error-reporting.patch