}
EXPORT_SYMBOL(dev_load);
-/**
- * dev_open - prepare an interface for use.
- * @dev: device to open
- *
- * Takes a device from down to up state. The device's private open
- * function is invoked and then the multicast lists are loaded. Finally
- * the device is moved into the up state and a %NETDEV_UP message is
- * sent to the netdev notifier chain.
- *
- * Calling this function on an active interface is a nop. On a failure
- * a negative errno code is returned.
- */
-int dev_open(struct net_device *dev)
+static int __dev_open(struct net_device *dev)
{
const struct net_device_ops *ops = dev->netdev_ops;
int ret;
ASSERT_RTNL();
- /*
- * Is it already up?
- */
-
- if (dev->flags & IFF_UP)
- return 0;
-
/*
* Is it even present?
*/
* Wakeup transmit queue engine
*/
dev_activate(dev);
-
- /*
- * ... and announce new interface.
- */
- call_netdevice_notifiers(NETDEV_UP, dev);
}
return ret;
}
-EXPORT_SYMBOL(dev_open);
/**
- * dev_close - shutdown an interface.
- * @dev: device to shutdown
+ * dev_open - prepare an interface for use.
+ * @dev: device to open
*
- * This function moves an active device into down state. A
- * %NETDEV_GOING_DOWN is sent to the netdev notifier chain. The device
- * is then deactivated and finally a %NETDEV_DOWN is sent to the notifier
- * chain.
+ * Takes a device from down to up state. The device's private open
+ * function is invoked and then the multicast lists are loaded. Finally
+ * the device is moved into the up state and a %NETDEV_UP message is
+ * sent to the netdev notifier chain.
+ *
+ * Calling this function on an active interface is a nop. On a failure
+ * a negative errno code is returned.
*/
-int dev_close(struct net_device *dev)
+int dev_open(struct net_device *dev)
+{
+ int ret;
+
+ /*
+ * Is it already up?
+ */
+ if (dev->flags & IFF_UP)
+ return 0;
+
+ /*
+ * Open device
+ */
+ ret = __dev_open(dev);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * ... and announce new interface.
+ */
+ rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
+ call_netdevice_notifiers(NETDEV_UP, dev);
+
+ return ret;
+}
+EXPORT_SYMBOL(dev_open);
+
+static int __dev_close(struct net_device *dev)
{
const struct net_device_ops *ops = dev->netdev_ops;
- ASSERT_RTNL();
+ ASSERT_RTNL();
might_sleep();
- if (!(dev->flags & IFF_UP))
- return 0;
-
/*
* Tell people we are going down, so that they can
* prepare to death, when device is still operating.
dev->flags &= ~IFF_UP;
/*
- * Tell people we are down
+ * Shutdown NET_DMA
*/
- call_netdevice_notifiers(NETDEV_DOWN, dev);
+ net_dmaengine_put();
+
+ return 0;
+}
+
+/**
+ * dev_close - shutdown an interface.
+ * @dev: device to shutdown
+ *
+ * This function moves an active device into down state. A
+ * %NETDEV_GOING_DOWN is sent to the netdev notifier chain. The device
+ * is then deactivated and finally a %NETDEV_DOWN is sent to the notifier
+ * chain.
+ */
+int dev_close(struct net_device *dev)
+{
+ if (!(dev->flags & IFF_UP))
+ return 0;
+
+ __dev_close(dev);
/*
- * Shutdown NET_DMA
+ * Tell people we are down
*/
- net_dmaengine_put();
+ rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
+ call_netdevice_notifiers(NETDEV_DOWN, dev);
return 0;
}
if (skb->len > (dev->mtu + dev->hard_header_len))
return NET_RX_DROP;
- skb_dst_drop(skb);
+ skb_set_dev(skb, dev);
skb->tstamp.tv64 = 0;
skb->pkt_type = PACKET_HOST;
skb->protocol = eth_type_trans(skb, dev);
- skb->mark = 0;
- secpath_reset(skb);
- nf_reset(skb);
return netif_rx(skb);
}
EXPORT_SYMBOL_GPL(dev_forward_skb);
return false;
}
+/**
+ * skb_dev_set -- assign a new device to a buffer
+ * @skb: buffer for the new device
+ * @dev: network device
+ *
+ * If an skb is owned by a device already, we have to reset
+ * all data private to the namespace a device belongs to
+ * before assigning it a new device.
+ */
+#ifdef CONFIG_NET_NS
+void skb_set_dev(struct sk_buff *skb, struct net_device *dev)
+{
+ skb_dst_drop(skb);
+ if (skb->dev && !net_eq(dev_net(skb->dev), dev_net(dev))) {
+ secpath_reset(skb);
+ nf_reset(skb);
+ skb_init_secmark(skb);
+ skb->mark = 0;
+ skb->priority = 0;
+ skb->nf_trace = 0;
+ skb->ipvs_property = 0;
+#ifdef CONFIG_NET_SCHED
+ skb->tc_index = 0;
+#endif
+ }
+ skb->dev = dev;
+}
+EXPORT_SYMBOL(skb_set_dev);
+#endif /* CONFIG_NET_NS */
+
/*
* Invalidate hardware checksum when packet is to be mangled, and
* complete checksum manually on outgoing path.
switch (ret) {
case GRO_NORMAL:
case GRO_HELD:
- skb->protocol = eth_type_trans(skb, napi->dev);
+ skb->protocol = eth_type_trans(skb, skb->dev);
if (ret == GRO_HELD)
skb_gro_pull(skb, -ETH_HLEN);
* entries to the tail of this list, and only ->poll()
* calls can remove this head entry from the list.
*/
- n = list_entry(list->next, struct napi_struct, poll_list);
+ n = list_first_entry(list, struct napi_struct, poll_list);
have = netpoll_poll_lock(n);
netif_addr_lock_bh(dev);
__dev_addr_discard(&dev->mc_list);
- dev->mc_count = 0;
+ netdev_mc_count(dev) = 0;
netif_addr_unlock_bh(dev);
}
}
EXPORT_SYMBOL(dev_get_flags);
-/**
- * dev_change_flags - change device settings
- * @dev: device
- * @flags: device state flags
- *
- * Change settings on device based state flags. The flags are
- * in the userspace exported format.
- */
-int dev_change_flags(struct net_device *dev, unsigned flags)
+int __dev_change_flags(struct net_device *dev, unsigned int flags)
{
- int ret, changes;
int old_flags = dev->flags;
+ int ret;
ASSERT_RTNL();
ret = 0;
if ((old_flags ^ flags) & IFF_UP) { /* Bit is different ? */
- ret = ((old_flags & IFF_UP) ? dev_close : dev_open)(dev);
+ ret = ((old_flags & IFF_UP) ? __dev_close : __dev_open)(dev);
if (!ret)
dev_set_rx_mode(dev);
}
- if (dev->flags & IFF_UP &&
- ((old_flags ^ dev->flags) & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
- IFF_VOLATILE)))
- call_netdevice_notifiers(NETDEV_CHANGE, dev);
-
if ((flags ^ dev->gflags) & IFF_PROMISC) {
int inc = (flags & IFF_PROMISC) ? 1 : -1;
dev_set_allmulti(dev, inc);
}
- /* Exclude state transition flags, already notified */
- changes = (old_flags ^ dev->flags) & ~(IFF_UP | IFF_RUNNING);
+ return ret;
+}
+
+void __dev_notify_flags(struct net_device *dev, unsigned int old_flags)
+{
+ unsigned int changes = dev->flags ^ old_flags;
+
+ if (changes & IFF_UP) {
+ if (dev->flags & IFF_UP)
+ call_netdevice_notifiers(NETDEV_UP, dev);
+ else
+ call_netdevice_notifiers(NETDEV_DOWN, dev);
+ }
+
+ if (dev->flags & IFF_UP &&
+ (changes & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE)))
+ call_netdevice_notifiers(NETDEV_CHANGE, dev);
+}
+
+/**
+ * dev_change_flags - change device settings
+ * @dev: device
+ * @flags: device state flags
+ *
+ * Change settings on device based state flags. The flags are
+ * in the userspace exported format.
+ */
+int dev_change_flags(struct net_device *dev, unsigned flags)
+{
+ int ret, changes;
+ int old_flags = dev->flags;
+
+ ret = __dev_change_flags(dev, flags);
+ if (ret < 0)
+ return ret;
+
+ changes = old_flags ^ dev->flags;
if (changes)
rtmsg_ifinfo(RTM_NEWLINK, dev, changes);
+ __dev_notify_flags(dev, old_flags);
return ret;
}
EXPORT_SYMBOL(dev_change_flags);
*/
call_netdevice_notifiers(NETDEV_UNREGISTER, dev);
+ if (!dev->rtnl_link_ops ||
+ dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
+ rtmsg_ifinfo(RTM_DELLINK, dev, ~0U);
+
/*
* Flush the unicast and multicast chains
*/
}
/* Process any work delayed until the end of the batch */
- dev = list_entry(head->next, struct net_device, unreg_list);
+ dev = list_first_entry(head, struct net_device, unreg_list);
call_netdevice_notifiers(NETDEV_UNREGISTER_BATCH, dev);
synchronize_net();
* Prevent userspace races by waiting until the network
* device is fully setup before sending notifications.
*/
- rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U);
+ if (!dev->rtnl_link_ops ||
+ dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
+ rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U);
out:
return ret;
while (!list_empty(&list)) {
struct net_device *dev
- = list_entry(list.next, struct net_device, todo_list);
+ = list_first_entry(&list, struct net_device, todo_list);
list_del(&dev->todo_list);
if (unlikely(dev->reg_state != NETREG_UNREGISTERING)) {
netdev_init_queues(dev);
+ INIT_LIST_HEAD(&dev->ethtool_ntuple_list.list);
+ dev->ethtool_ntuple_list.count = 0;
INIT_LIST_HEAD(&dev->napi_list);
INIT_LIST_HEAD(&dev->unreg_list);
INIT_LIST_HEAD(&dev->link_watch_list);
/* Flush device addresses */
dev_addr_flush(dev);
+ /* Clear ethtool n-tuple list */
+ ethtool_ntuple_flush(dev);
+
list_for_each_entry_safe(p, n, &dev->napi_list, dev_list)
netif_napi_del(p);
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff