1 files changed, 35 insertions, 8 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 1015a63de6ae..70dacaf9044e 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -233,6 +233,7 @@ static netdev_features_t ipoib_fix_features(struct net_device *dev, netdev_featu
 static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
+	int ret = 0;
 
 	/* dev->mtu > 2K ==> connected mode */
 	if (ipoib_cm_admin_enabled(dev)) {
@@ -256,9 +257,34 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
 		ipoib_dbg(priv, "MTU must be smaller than the underlying "
 				"link layer MTU - 4 (%u)\n", priv->mcast_mtu);
 
-	dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
+	new_mtu = min(priv->mcast_mtu, priv->admin_mtu);
 
-	return 0;
+	if (priv->rn_ops->ndo_change_mtu) {
+		bool carrier_status = netif_carrier_ok(dev);
+
+		netif_carrier_off(dev);
+
+		/* notify lower level on the real mtu */
+		ret = priv->rn_ops->ndo_change_mtu(dev, new_mtu);
+
+		if (carrier_status)
+			netif_carrier_on(dev);
+	} else {
+		dev->mtu = new_mtu;
+	}
+
+	return ret;
+}
+
+static void ipoib_get_stats(struct net_device *dev,
+			    struct rtnl_link_stats64 *stats)
+{
+	struct ipoib_dev_priv *priv = ipoib_priv(dev);
+
+	if (priv->rn_ops->ndo_get_stats64)
+		priv->rn_ops->ndo_get_stats64(dev, stats);
+	else
+		netdev_stats_to_stats64(stats, &dev->stats);
 }
 
 /* Called with an RCU read lock taken */
@@ -681,7 +707,7 @@ static void push_pseudo_header(struct sk_buff *skb, const char *daddr)
 {
 	struct ipoib_pseudo_header *phdr;
 
-	phdr = (struct ipoib_pseudo_header *)skb_push(skb, sizeof(*phdr));
+	phdr = skb_push(skb, sizeof(*phdr));
 	memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
 }
 
@@ -1129,7 +1155,7 @@ static int ipoib_hard_header(struct sk_buff *skb,
 {
 	struct ipoib_header *header;
 
-	header = (struct ipoib_header *) skb_push(skb, sizeof *header);
+	header = skb_push(skb, sizeof *header);
 
 	header->proto = htons(type);
 	header->reserved = 0;
@@ -1808,6 +1834,7 @@ static const struct net_device_ops ipoib_netdev_ops_pf = {
 	.ndo_get_vf_stats	 = ipoib_get_vf_stats,
 	.ndo_set_vf_guid	 = ipoib_set_vf_guid,
 	.ndo_set_mac_address	 = ipoib_set_mac,
+	.ndo_get_stats64	 = ipoib_get_stats,
 };
 
 static const struct net_device_ops ipoib_netdev_ops_vf = {
@@ -1893,6 +1920,7 @@ static struct net_device
 	rn->send = ipoib_send;
 	rn->attach_mcast = ipoib_mcast_attach;
 	rn->detach_mcast = ipoib_mcast_detach;
+	rn->free_rdma_netdev = free_netdev;
 	rn->hca = hca;
 
 	dev->netdev_ops = &ipoib_netdev_default_pf;
@@ -2288,6 +2316,8 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
 		return;
 
 	list_for_each_entry_safe(priv, tmp, dev_list, list) {
+		struct rdma_netdev *rn = netdev_priv(priv->dev);
+
 		ib_unregister_event_handler(&priv->event_handler);
 		flush_workqueue(ipoib_workqueue);
 
@@ -2304,10 +2334,7 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
 		flush_workqueue(priv->wq);
 
 		unregister_netdev(priv->dev);
-		if (device->free_rdma_netdev)
-			device->free_rdma_netdev(priv->dev);
-		else
-			free_netdev(priv->dev);
+		rn->free_rdma_netdev(priv->dev);
 
 		list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list)
 			kfree(cpriv);