From: David S. Miller Date: Thu, 28 Aug 2014 08:39:49 +0000 (-0700) Subject: virtio_net: flush when in xmit_more mode and under descriptor pressure X-Git-Tag: firefly_0821_release~176^2~3043^2~205 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c89fcfd42cbcf839b6737c977f280188eeea92d7;p=firefly-linux-kernel-4.4.55.git virtio_net: flush when in xmit_more mode and under descriptor pressure Mirror the changes made to ixgbe in commit 2367a17390138f68b3aa28f2f220b8d7ff8d91f4 ("ixgbe: flush when in xmit_more mode and under descriptor pressure") Signed-off-by: David S. Miller --- diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index f0c2824f5e0f..9359a13d285a 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -953,7 +953,7 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) } } - if (!skb->xmit_more) + if (__netif_subqueue_stopped(dev, qnum) || !skb->xmit_more) virtqueue_kick(sq->vq); return NETDEV_TX_OK;