1 files changed, 15 insertions, 31 deletions

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index fe8e21ad8ed9..a0a438881388 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -41,9 +41,6 @@
 #include <asm/xen/hypercall.h>
 #include <xen/balloon.h>
 
-#define XENVIF_QUEUE_LENGTH 32
-#define XENVIF_NAPI_WEIGHT  64
-
 /* Number of bytes allowed on the internal guest Rx queue. */
 #define XENVIF_RX_QUEUE_BYTES (XEN_NETIF_RX_RING_SIZE/2 * PAGE_SIZE)
 
@@ -70,7 +67,7 @@ void xenvif_skb_zerocopy_complete(struct xenvif_queue *queue)
 	wake_up(&queue->dealloc_wq);
 }
 
-int xenvif_schedulable(struct xenvif *vif)
+static int xenvif_schedulable(struct xenvif *vif)
 {
 	return netif_running(vif->dev) &&
 		test_bit(VIF_STATUS_CONNECTED, &vif->status) &&
@@ -178,20 +175,6 @@ irqreturn_t xenvif_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-int xenvif_queue_stopped(struct xenvif_queue *queue)
-{
-	struct net_device *dev = queue->vif->dev;
-	unsigned int id = queue->id;
-	return netif_tx_queue_stopped(netdev_get_tx_queue(dev, id));
-}
-
-void xenvif_wake_queue(struct xenvif_queue *queue)
-{
-	struct net_device *dev = queue->vif->dev;
-	unsigned int id = queue->id;
-	netif_tx_wake_queue(netdev_get_tx_queue(dev, id));
-}
-
 static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb,
 			       struct net_device *sb_dev)
 {
@@ -269,14 +252,19 @@ xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (vif->hash.alg == XEN_NETIF_CTRL_HASH_ALGORITHM_NONE)
 		skb_clear_hash(skb);
 
-	xenvif_rx_queue_tail(queue, skb);
+	/* timestamp packet in software */
+	skb_tx_timestamp(skb);
+
+	if (!xenvif_rx_queue_tail(queue, skb))
+		goto drop;
+
 	xenvif_kick_thread(queue);
 
 	return NETDEV_TX_OK;
 
  drop:
 	vif->dev->stats.tx_dropped++;
-	dev_kfree_skb(skb);
+	dev_kfree_skb_any(skb);
 	return NETDEV_TX_OK;
 }
 
@@ -341,7 +329,7 @@ static void xenvif_down(struct xenvif *vif)
 		if (queue->tx_irq != queue->rx_irq)
 			disable_irq(queue->rx_irq);
 		napi_disable(&queue->napi);
-		del_timer_sync(&queue->credit_timeout);
+		timer_delete_sync(&queue->credit_timeout);
 	}
 }
 
@@ -370,7 +358,7 @@ static int xenvif_change_mtu(struct net_device *dev, int mtu)
 
 	if (mtu > max)
 		return -EINVAL;
-	dev->mtu = mtu;
+	WRITE_ONCE(dev->mtu, mtu);
 	return 0;
 }
 
@@ -473,7 +461,7 @@ static void xenvif_get_strings(struct net_device *dev, u32 stringset, u8 * data)
 
 static const struct ethtool_ops xenvif_ethtool_ops = {
 	.get_link	= ethtool_op_get_link,
-
+	.get_ts_info 	= ethtool_op_get_ts_info,
 	.get_sset_count = xenvif_get_sset_count,
 	.get_ethtool_stats = xenvif_get_ethtool_stats,
 	.get_strings = xenvif_get_strings,
@@ -543,8 +531,6 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	dev->features = dev->hw_features | NETIF_F_RXCSUM;
 	dev->ethtool_ops = &xenvif_ethtool_ops;
 
-	dev->tx_queue_len = XENVIF_QUEUE_LENGTH;
-
 	dev->min_mtu = ETH_MIN_MTU;
 	dev->max_mtu = ETH_MAX_MTU - VLAN_ETH_HLEN;
 
@@ -606,8 +592,8 @@ int xenvif_init_queue(struct xenvif_queue *queue)
 	}
 
 	for (i = 0; i < MAX_PENDING_REQS; i++) {
-		queue->pending_tx_info[i].callback_struct = (struct ubuf_info)
-			{ .callback = xenvif_zerocopy_callback,
+		queue->pending_tx_info[i].callback_struct = (struct ubuf_info_msgzc)
+			{ { .ops = &xenvif_ubuf_ops },
 			  { { .ctx = NULL,
 			      .desc = i } } };
 		queue->grant_tx_handle[i] = NETBACK_INVALID_HANDLE;
@@ -685,8 +671,7 @@ err:
 static void xenvif_disconnect_queue(struct xenvif_queue *queue)
 {
 	if (queue->task) {
-		kthread_stop(queue->task);
-		put_task_struct(queue->task);
+		kthread_stop_put(queue->task);
 		queue->task = NULL;
 	}
 
@@ -738,8 +723,7 @@ int xenvif_connect_data(struct xenvif_queue *queue,
 	init_waitqueue_head(&queue->dealloc_wq);
 	atomic_set(&queue->inflight_packets, 0);
 
-	netif_napi_add(queue->vif->dev, &queue->napi, xenvif_poll,
-			XENVIF_NAPI_WEIGHT);
+	netif_napi_add(queue->vif->dev, &queue->napi, xenvif_poll);
 
 	queue->stalled = true;