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-rw-r--r--net/core/dev.c61
1 files changed, 53 insertions, 8 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index a8e4dd430285..877c84834d81 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3061,6 +3061,16 @@ static int __dev_queue_xmit(struct sk_buff *skb, void *accel_priv)
else
skb_dst_force(skb);
+#ifdef CONFIG_NET_SWITCHDEV
+ /* Don't forward if offload device already forwarded */
+ if (skb->offload_fwd_mark &&
+ skb->offload_fwd_mark == dev->offload_fwd_mark) {
+ consume_skb(skb);
+ rc = NET_XMIT_SUCCESS;
+ goto out;
+ }
+#endif
+
txq = netdev_pick_tx(dev, skb, accel_priv);
q = rcu_dereference_bh(txq->qdisc);
@@ -3645,15 +3655,15 @@ static inline struct sk_buff *handle_ing(struct sk_buff *skb,
qdisc_skb_cb(skb)->pkt_len = skb->len;
skb->tc_verd = SET_TC_AT(skb->tc_verd, AT_INGRESS);
- qdisc_bstats_update_cpu(cl->q, skb);
+ qdisc_bstats_cpu_update(cl->q, skb);
- switch (tc_classify(skb, cl, &cl_res)) {
+ switch (tc_classify(skb, cl, &cl_res, false)) {
case TC_ACT_OK:
case TC_ACT_RECLASSIFY:
skb->tc_index = TC_H_MIN(cl_res.classid);
break;
case TC_ACT_SHOT:
- qdisc_qstats_drop_cpu(cl->q);
+ qdisc_qstats_cpu_drop(cl->q);
case TC_ACT_STOLEN:
case TC_ACT_QUEUED:
kfree_skb(skb);
@@ -4985,7 +4995,7 @@ EXPORT_SYMBOL(netdev_all_upper_get_next_dev_rcu);
* Gets the next netdev_adjacent->private from the dev's lower neighbour
* list, starting from iter position. The caller must hold either hold the
* RTNL lock or its own locking that guarantees that the neighbour lower
- * list will remain unchainged.
+ * list will remain unchanged.
*/
void *netdev_lower_get_next_private(struct net_device *dev,
struct list_head **iter)
@@ -5040,7 +5050,7 @@ EXPORT_SYMBOL(netdev_lower_get_next_private_rcu);
* Gets the next netdev_adjacent from the dev's lower neighbour
* list, starting from iter position. The caller must hold RTNL lock or
* its own locking that guarantees that the neighbour lower
- * list will remain unchainged.
+ * list will remain unchanged.
*/
void *netdev_lower_get_next(struct net_device *dev, struct list_head **iter)
{
@@ -5301,6 +5311,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
struct net_device *upper_dev, bool master,
void *private)
{
+ struct netdev_notifier_changeupper_info changeupper_info;
struct netdev_adjacent *i, *j, *to_i, *to_j;
int ret = 0;
@@ -5319,6 +5330,10 @@ static int __netdev_upper_dev_link(struct net_device *dev,
if (master && netdev_master_upper_dev_get(dev))
return -EBUSY;
+ changeupper_info.upper_dev = upper_dev;
+ changeupper_info.master = master;
+ changeupper_info.linking = true;
+
ret = __netdev_adjacent_dev_link_neighbour(dev, upper_dev, private,
master);
if (ret)
@@ -5357,7 +5372,8 @@ static int __netdev_upper_dev_link(struct net_device *dev,
goto rollback_lower_mesh;
}
- call_netdevice_notifiers(NETDEV_CHANGEUPPER, dev);
+ call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
+ &changeupper_info.info);
return 0;
rollback_lower_mesh:
@@ -5452,9 +5468,14 @@ EXPORT_SYMBOL(netdev_master_upper_dev_link_private);
void netdev_upper_dev_unlink(struct net_device *dev,
struct net_device *upper_dev)
{
+ struct netdev_notifier_changeupper_info changeupper_info;
struct netdev_adjacent *i, *j;
ASSERT_RTNL();
+ changeupper_info.upper_dev = upper_dev;
+ changeupper_info.master = netdev_master_upper_dev_get(dev) == upper_dev;
+ changeupper_info.linking = false;
+
__netdev_adjacent_dev_unlink_neighbour(dev, upper_dev);
/* Here is the tricky part. We must remove all dev's lower
@@ -5474,7 +5495,8 @@ void netdev_upper_dev_unlink(struct net_device *dev,
list_for_each_entry(i, &upper_dev->all_adj_list.upper, list)
__netdev_adjacent_dev_unlink(dev, i->dev);
- call_netdevice_notifiers(NETDEV_CHANGEUPPER, dev);
+ call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
+ &changeupper_info.info);
}
EXPORT_SYMBOL(netdev_upper_dev_unlink);
@@ -6075,6 +6097,26 @@ int dev_get_phys_port_name(struct net_device *dev,
EXPORT_SYMBOL(dev_get_phys_port_name);
/**
+ * dev_change_proto_down - update protocol port state information
+ * @dev: device
+ * @proto_down: new value
+ *
+ * This info can be used by switch drivers to set the phys state of the
+ * port.
+ */
+int dev_change_proto_down(struct net_device *dev, bool proto_down)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+
+ if (!ops->ndo_change_proto_down)
+ return -EOPNOTSUPP;
+ if (!netif_device_present(dev))
+ return -ENODEV;
+ return ops->ndo_change_proto_down(dev, proto_down);
+}
+EXPORT_SYMBOL(dev_change_proto_down);
+
+/**
* dev_new_index - allocate an ifindex
* @net: the applicable net namespace
*
@@ -6967,6 +7009,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
dev->priv_flags = IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM;
setup(dev);
+ if (!dev->tx_queue_len)
+ dev->priv_flags |= IFF_NO_QUEUE;
+
dev->num_tx_queues = txqs;
dev->real_num_tx_queues = txqs;
if (netif_alloc_netdev_queues(dev))
@@ -7639,7 +7684,7 @@ static int __init net_dev_init(void)
open_softirq(NET_RX_SOFTIRQ, net_rx_action);
hotcpu_notifier(dev_cpu_callback, 0);
- dst_init();
+ dst_subsys_init();
rc = 0;
out:
return rc;