@@ -487,6 +487,9 @@ static int xsk_generic_xmit(struct sock *sk)
if (err == NETDEV_TX_BUSY) {
/* Tell user-space to retry the send */
skb->destructor = sock_wfree;
+ spin_lock_irqsave(&xs->pool->cq_lock, flags);
+ xskq_prod_cancel(xs->pool->cq);
+ spin_unlock_irqrestore(&xs->pool->cq_lock, flags);
/* Free skb without triggering the perf drop trace */
consume_skb(skb);
err = -EAGAIN;
@@ -334,6 +334,11 @@ static inline bool xskq_prod_is_full(struct xsk_queue *q)
return xskq_prod_nb_free(q, 1) ? false : true;
}
+static inline void xskq_prod_cancel(struct xsk_queue *q)
+{
+ q->cached_prod--;
+}
+
static inline int xskq_prod_reserve(struct xsk_queue *q)
{
if (xskq_prod_is_full(q))