Commit 7a66f784 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Rusty Russell
Browse files

virtio_net: delay TX callbacks

Ask for delayed callbacks on TX ring full, to give the
other side more of a chance to make progress.
Signed-off-by: default avatarMichael S. Tsirkin <>
Acked-by: default avatarDavid S. Miller <>
Signed-off-by: default avatarRusty Russell <>
parent 7ab358c2
......@@ -609,7 +609,7 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
* before it gets out of hand. Naturally, this wastes entries. */
if (capacity < 2+MAX_SKB_FRAGS) {
if (unlikely(!virtqueue_enable_cb(vi->svq))) {
if (unlikely(!virtqueue_enable_cb_delayed(vi->svq))) {
/* More just got used, free them then recheck. */
capacity += free_old_xmit_skbs(vi);
if (capacity >= 2+MAX_SKB_FRAGS) {
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