netdev - [PATCH net-next v2 5/5] virtio_net: add missing netdev_tx_reset_queue to virtnet_sq_bind_xsk

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Message-ID: <20241203073025.67065-6-koichiro.den@canonical.com>
Date: Tue,  3 Dec 2024 16:30:25 +0900
From: Koichiro Den <koichiro.den@...onical.com>
To: virtualization@...ts.linux.dev
Cc: mst@...hat.com,
	jasowang@...hat.com,
	xuanzhuo@...ux.alibaba.com,
	eperezma@...hat.com,
	andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	jiri@...nulli.us,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: [PATCH net-next v2 5/5] virtio_net: add missing netdev_tx_reset_queue to virtnet_sq_bind_xsk_pool()

virtnet_sq_bind_xsk_pool() flushes tx skbs and then resets tx queue, so
DQL counters need to be reset.

Fixes: 21a4e3ce6dc7 ("virtio_net: xsk: bind/unbind xsk for tx")
Signed-off-by: Koichiro Den <koichiro.den@...onical.com>
---
 drivers/net/virtio_net.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index d5240a03b7d6..27d58fb47b07 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -5749,6 +5749,8 @@ static int virtnet_sq_bind_xsk_pool(struct virtnet_info *vi,
 		netdev_err(vi->dev, "reset tx fail: tx queue index: %d err: %d\n", qindex, err);
 		pool = NULL;
 	}
+	if (flushed)
+		netdev_tx_reset_queue(netdev_get_tx_queue(vi->dev, qindex));
 
 	sq->xsk_pool = pool;
 
-- 
2.43.0