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path: root/drivers/net/macvlan.c
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Diffstat (limited to 'drivers/net/macvlan.c')
-rw-r--r--drivers/net/macvlan.c70
1 files changed, 60 insertions, 10 deletions
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 9bf46bd19b87..60406b01f9eb 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -297,7 +297,13 @@ netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
int ret;
const struct macvlan_dev *vlan = netdev_priv(dev);
- ret = macvlan_queue_xmit(skb, dev);
+ if (vlan->fwd_priv) {
+ skb->dev = vlan->lowerdev;
+ ret = dev_hard_start_xmit(skb, skb->dev, NULL, vlan->fwd_priv);
+ } else {
+ ret = macvlan_queue_xmit(skb, dev);
+ }
+
if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
struct macvlan_pcpu_stats *pcpu_stats;
@@ -347,6 +353,21 @@ static int macvlan_open(struct net_device *dev)
goto hash_add;
}
+ if (lowerdev->features & NETIF_F_HW_L2FW_DOFFLOAD) {
+ vlan->fwd_priv =
+ lowerdev->netdev_ops->ndo_dfwd_add_station(lowerdev, dev);
+
+ /* If we get a NULL pointer back, or if we get an error
+ * then we should just fall through to the non accelerated path
+ */
+ if (IS_ERR_OR_NULL(vlan->fwd_priv)) {
+ vlan->fwd_priv = NULL;
+ } else {
+ dev->features &= ~NETIF_F_LLTX;
+ return 0;
+ }
+ }
+
err = -EBUSY;
if (macvlan_addr_busy(vlan->port, dev->dev_addr))
goto out;
@@ -367,6 +388,11 @@ hash_add:
del_unicast:
dev_uc_del(lowerdev, dev->dev_addr);
out:
+ if (vlan->fwd_priv) {
+ lowerdev->netdev_ops->ndo_dfwd_del_station(lowerdev,
+ vlan->fwd_priv);
+ vlan->fwd_priv = NULL;
+ }
return err;
}
@@ -375,6 +401,13 @@ static int macvlan_stop(struct net_device *dev)
struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
+ if (vlan->fwd_priv) {
+ lowerdev->netdev_ops->ndo_dfwd_del_station(lowerdev,
+ vlan->fwd_priv);
+ vlan->fwd_priv = NULL;
+ return 0;
+ }
+
dev_uc_unsync(lowerdev, dev);
dev_mc_unsync(lowerdev, dev);
@@ -501,6 +534,7 @@ static int macvlan_init(struct net_device *dev)
{
struct macvlan_dev *vlan = netdev_priv(dev);
const struct net_device *lowerdev = vlan->lowerdev;
+ int i;
dev->state = (dev->state & ~MACVLAN_STATE_MASK) |
(lowerdev->state & MACVLAN_STATE_MASK);
@@ -516,6 +550,12 @@ static int macvlan_init(struct net_device *dev)
if (!vlan->pcpu_stats)
return -ENOMEM;
+ for_each_possible_cpu(i) {
+ struct macvlan_pcpu_stats *mvlstats;
+ mvlstats = per_cpu_ptr(vlan->pcpu_stats, i);
+ u64_stats_init(&mvlstats->syncp);
+ }
+
return 0;
}
@@ -650,8 +690,19 @@ static netdev_features_t macvlan_fix_features(struct net_device *dev,
netdev_features_t features)
{
struct macvlan_dev *vlan = netdev_priv(dev);
+ netdev_features_t mask;
- return features & (vlan->set_features | ~MACVLAN_FEATURES);
+ features |= NETIF_F_ALL_FOR_ALL;
+ features &= (vlan->set_features | ~MACVLAN_FEATURES);
+ mask = features;
+
+ features = netdev_increment_features(vlan->lowerdev->features,
+ features,
+ mask);
+ if (!vlan->fwd_priv)
+ features |= NETIF_F_LLTX;
+
+ return features;
}
static const struct ethtool_ops macvlan_ethtool_ops = {
@@ -828,22 +879,22 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
eth_hw_addr_inherit(dev, lowerdev);
}
+ port->count += 1;
+ err = register_netdevice(dev);
+ if (err < 0)
+ goto destroy_port;
+
+ dev->priv_flags |= IFF_MACVLAN;
err = netdev_upper_dev_link(lowerdev, dev);
if (err)
goto destroy_port;
- port->count += 1;
- err = register_netdevice(dev);
- if (err < 0)
- goto upper_dev_unlink;
list_add_tail_rcu(&vlan->list, &port->vlans);
netif_stacked_transfer_operstate(lowerdev, dev);
return 0;
-upper_dev_unlink:
- netdev_upper_dev_unlink(lowerdev, dev);
destroy_port:
port->count -= 1;
if (!port->count)
@@ -979,9 +1030,8 @@ static int macvlan_device_event(struct notifier_block *unused,
break;
case NETDEV_FEAT_CHANGE:
list_for_each_entry(vlan, &port->vlans, list) {
- vlan->dev->features = dev->features & MACVLAN_FEATURES;
vlan->dev->gso_max_size = dev->gso_max_size;
- netdev_features_change(vlan->dev);
+ netdev_update_features(vlan->dev);
}
break;
case NETDEV_UNREGISTER: