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Diffstat (limited to 'net/8021q/vlan_dev.c')
-rw-r--r--net/8021q/vlan_dev.c100
1 files changed, 86 insertions, 14 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 9543e9182796..51ce4217c039 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -47,7 +47,7 @@
*
* TODO: This needs a checkup, I'm ignorant here. --BLG
*/
-int vlan_dev_rebuild_header(struct sk_buff *skb)
+static int vlan_dev_rebuild_header(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
@@ -342,9 +342,10 @@ static inline unsigned short vlan_dev_get_egress_qos_mask(struct net_device* dev
* This is called when the SKB is moving down the stack towards the
* physical devices.
*/
-int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type,
- const void *daddr, const void *saddr, unsigned len)
+static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type,
+ const void *daddr, const void *saddr,
+ unsigned int len)
{
struct vlan_hdr *vhdr;
unsigned short veth_TCI = 0;
@@ -451,7 +452,7 @@ int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
return rc;
}
-int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct net_device_stats *stats = &dev->stats;
struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
@@ -512,7 +513,8 @@ int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
return 0;
}
-int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
{
struct net_device_stats *stats = &dev->stats;
unsigned short veth_TCI;
@@ -536,7 +538,7 @@ int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev
return 0;
}
-int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
+static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
{
/* TODO: gotta make sure the underlying layer can handle it,
* maybe an IFF_VLAN_CAPABLE flag for devices?
@@ -626,7 +628,7 @@ void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result)
*result = VLAN_DEV_INFO(dev)->vlan_id;
}
-int vlan_dev_open(struct net_device *dev)
+static int vlan_dev_open(struct net_device *dev)
{
struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
struct net_device *real_dev = vlan->real_dev;
@@ -650,7 +652,7 @@ int vlan_dev_open(struct net_device *dev)
return 0;
}
-int vlan_dev_stop(struct net_device *dev)
+static int vlan_dev_stop(struct net_device *dev)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
@@ -666,7 +668,7 @@ int vlan_dev_stop(struct net_device *dev)
return 0;
}
-int vlan_set_mac_address(struct net_device *dev, void *p)
+static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
struct sockaddr *addr = p;
@@ -692,7 +694,7 @@ out:
return 0;
}
-int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
struct ifreq ifrr;
@@ -716,7 +718,7 @@ int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return err;
}
-void vlan_change_rx_flags(struct net_device *dev, int change)
+static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
{
struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
@@ -726,8 +728,78 @@ void vlan_change_rx_flags(struct net_device *dev, int change)
dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
}
-/** Taken from Gleb + Lennert's VLAN code, and modified... */
-void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
+static void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
{
dev_mc_sync(VLAN_DEV_INFO(vlan_dev)->real_dev, vlan_dev);
}
+
+/*
+ * vlan network devices have devices nesting below it, and are a special
+ * "super class" of normal network devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key vlan_netdev_xmit_lock_key;
+
+static const struct header_ops vlan_header_ops = {
+ .create = vlan_dev_hard_header,
+ .rebuild = vlan_dev_rebuild_header,
+ .parse = eth_header_parse,
+};
+
+static int vlan_dev_init(struct net_device *dev)
+{
+ struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
+ int subclass = 0;
+
+ /* IFF_BROADCAST|IFF_MULTICAST; ??? */
+ dev->flags = real_dev->flags & ~IFF_UP;
+ dev->iflink = real_dev->ifindex;
+ dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
+ (1<<__LINK_STATE_DORMANT))) |
+ (1<<__LINK_STATE_PRESENT);
+
+ /* ipv6 shared card related stuff */
+ dev->dev_id = real_dev->dev_id;
+
+ if (is_zero_ether_addr(dev->dev_addr))
+ memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
+ if (is_zero_ether_addr(dev->broadcast))
+ memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
+
+ if (real_dev->features & NETIF_F_HW_VLAN_TX) {
+ dev->header_ops = real_dev->header_ops;
+ dev->hard_header_len = real_dev->hard_header_len;
+ dev->hard_start_xmit = vlan_dev_hwaccel_hard_start_xmit;
+ } else {
+ dev->header_ops = &vlan_header_ops;
+ dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
+ dev->hard_start_xmit = vlan_dev_hard_start_xmit;
+ }
+
+ if (real_dev->priv_flags & IFF_802_1Q_VLAN)
+ subclass = 1;
+
+ lockdep_set_class_and_subclass(&dev->_xmit_lock,
+ &vlan_netdev_xmit_lock_key, subclass);
+ return 0;
+}
+
+void vlan_setup(struct net_device *dev)
+{
+ ether_setup(dev);
+
+ dev->priv_flags |= IFF_802_1Q_VLAN;
+ dev->tx_queue_len = 0;
+
+ dev->change_mtu = vlan_dev_change_mtu;
+ dev->init = vlan_dev_init;
+ dev->open = vlan_dev_open;
+ dev->stop = vlan_dev_stop;
+ dev->set_mac_address = vlan_dev_set_mac_address;
+ dev->set_multicast_list = vlan_dev_set_multicast_list;
+ dev->change_rx_flags = vlan_dev_change_rx_flags;
+ dev->do_ioctl = vlan_dev_ioctl;
+ dev->destructor = free_netdev;
+
+ memset(dev->broadcast, 0, ETH_ALEN);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 11:06:26 +0100