hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
[ Upstream commitc3d897e01a
] netvsc_vf_xmit() / dev_queue_xmit() will call VF NIC’s ndo_select_queue or netdev_pick_tx() again. They will use skb_get_rx_queue() to get the queue number, so the “skb->queue_mapping - 1” will be used. This may cause the last queue of VF not been used. Use skb_record_rx_queue() here, so that the skb_get_rx_queue() called later will get the correct queue number, and VF will be able to use all queues. Fixes:b3bf5666a5
("hv_netvsc: defer queue selection to VF") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -501,7 +501,7 @@ static int netvsc_vf_xmit(struct net_device *net, struct net_device *vf_netdev,
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int rc;
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skb->dev = vf_netdev;
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skb->queue_mapping = qdisc_skb_cb(skb)->slave_dev_queue_mapping;
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skb_record_rx_queue(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping);
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rc = dev_queue_xmit(skb);
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if (likely(rc == NET_XMIT_SUCCESS || rc == NET_XMIT_CN)) {
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