Patch "qtnfmac: modify full Tx queue error reporting" has been added to the 4.14-stable tree

Patch "qtnfmac: modify full Tx queue error reporting" has been added to the 4.14-stable tree

[gregkh]

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;a=summary

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