linux-kernel - [PATCH net] atl1c: fix tx timeout after link flap on Mikrotik 10/25G NIC

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Message-Id: <20220211065123.4187615-1-gatis@mikrotik.com>
Date:   Fri, 11 Feb 2022 08:51:23 +0200
From:   Gatis Peisenieks <gatis@...rotik.com>
To:     chris.snook@...il.com, davem@...emloft.net, kuba@...nel.org,
        hkallweit1@...il.com, jesse.brandeburg@...el.com,
        dchickles@...vell.com, tully@...rotik.com, antons@...rotik.com,
        eric.dumazet@...il.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Gatis Peisenieks <gatis@...rotik.com>
Subject: [PATCH net] atl1c: fix tx timeout after link flap on Mikrotik 10/25G NIC

If NIC had packets in tx queue at the moment link down event
happened, it could result in tx timeout when link got back up.

Since device has more than one tx queue we need to reset them
accordingly.

Fixes: 057f4af2b171 ("atl1c: add 4 RX/TX queue support for Mikrotik 10/25G NIC")
Signed-off-by: Gatis Peisenieks <gatis@...rotik.com>
---
 drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index da595242bc13..f50604f3e541 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -900,7 +900,7 @@ static void atl1c_clean_tx_ring(struct atl1c_adapter *adapter,
 		atl1c_clean_buffer(pdev, buffer_info);
 	}
 
-	netdev_reset_queue(adapter->netdev);
+	netdev_tx_reset_queue(netdev_get_tx_queue(adapter->netdev, queue));
 
 	/* Zero out Tx-buffers */
 	memset(tpd_ring->desc, 0, sizeof(struct atl1c_tpd_desc) *
-- 
2.31.1