vlan: move struct vlan_dev_info to private header
Hide struct vlan_dev_info from drivers to prevent them from growing more creative ways to use it. Provide accessors for the two drivers that currently use it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -337,7 +337,7 @@ struct l2t_entry *t3_l2t_get(struct t3cdev *cdev, struct neighbour *neigh,
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atomic_set(&e->refcnt, 1);
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neigh_replace(e, neigh);
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if (neigh->dev->priv_flags & IFF_802_1Q_VLAN)
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e->vlan = vlan_dev_info(neigh->dev)->vlan_id;
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e->vlan = vlan_dev_vlan_id(neigh->dev);
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else
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e->vlan = VLAN_NONE;
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spin_unlock(&e->lock);
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@ -2020,7 +2020,7 @@ static int qeth_l3_verify_vlan_dev(struct net_device *dev,
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}
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}
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if (rc && !(netdev_priv(vlan_dev_info(dev)->real_dev) == (void *)card))
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if (rc && !(netdev_priv(vlan_dev_real_dev(dev)) == (void *)card))
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return 0;
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return rc;
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@ -2056,7 +2056,7 @@ static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
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if (rc == QETH_REAL_CARD)
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card = netdev_priv(dev);
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else if (rc == QETH_VLAN_CARD)
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card = netdev_priv(vlan_dev_info(dev)->real_dev);
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card = netdev_priv(vlan_dev_real_dev(dev));
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if (card && card->options.layer2)
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card = NULL;
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QETH_DBF_TEXT_(TRACE, 4, "%d", rc);
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@ -109,47 +109,6 @@ static inline void vlan_group_set_device(struct vlan_group *vg,
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array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev;
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}
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struct vlan_priority_tci_mapping {
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u32 priority;
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unsigned short vlan_qos; /* This should be shifted when first set, so we only do it
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* at provisioning time.
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* ((skb->priority << 13) & 0xE000)
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*/
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struct vlan_priority_tci_mapping *next;
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};
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/* Holds information that makes sense if this device is a VLAN device. */
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struct vlan_dev_info {
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/** This will be the mapping that correlates skb->priority to
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* 3 bits of VLAN QOS tags...
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*/
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unsigned int nr_ingress_mappings;
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u32 ingress_priority_map[8];
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unsigned int nr_egress_mappings;
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struct vlan_priority_tci_mapping *egress_priority_map[16]; /* hash table */
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unsigned short vlan_id; /* The VLAN Identifier for this interface. */
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unsigned short flags; /* (1 << 0) re_order_header This option will cause the
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* VLAN code to move around the ethernet header on
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* ingress to make the skb look **exactly** like it
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* came in from an ethernet port. This destroys some of
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* the VLAN information in the skb, but it fixes programs
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* like DHCP that use packet-filtering and don't understand
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* 802.1Q
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*/
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struct net_device *real_dev; /* the underlying device/interface */
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unsigned char real_dev_addr[ETH_ALEN];
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struct proc_dir_entry *dent; /* Holds the proc data */
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unsigned long cnt_inc_headroom_on_tx; /* How many times did we have to grow the skb on TX. */
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unsigned long cnt_encap_on_xmit; /* How many times did we have to encapsulate the skb on TX. */
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};
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static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
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{
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return netdev_priv(dev);
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}
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/* VLAN tx hw acceleration helpers. */
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struct vlan_skb_tx_cookie {
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u32 magic;
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@ -163,9 +122,24 @@ struct vlan_skb_tx_cookie {
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#define vlan_tx_tag_get(__skb) (VLAN_TX_SKB_CB(__skb)->vlan_tag)
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#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
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extern struct net_device *vlan_dev_real_dev(const struct net_device *dev);
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extern u16 vlan_dev_vlan_id(const struct net_device *dev);
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extern int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
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unsigned short vlan_tag, int polling);
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#else
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static inline struct net_device *vlan_dev_real_dev(const struct net_device *dev)
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{
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BUG();
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return NULL;
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}
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static inline u16 vlan_dev_vlan_id(const struct net_device *dev)
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{
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BUG();
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return 0;
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}
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static inline int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
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unsigned short vlan_tag, int polling)
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{
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@ -543,7 +543,6 @@ static struct notifier_block vlan_notifier_block __read_mostly = {
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static int vlan_ioctl_handler(struct net *net, void __user *arg)
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{
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int err;
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unsigned short vid = 0;
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struct vlan_ioctl_args args;
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struct net_device *dev = NULL;
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@ -644,8 +643,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
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case GET_VLAN_VID_CMD:
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err = 0;
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vlan_dev_get_vid(dev, &vid);
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args.u.VID = vid;
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args.u.VID = vlan_dev_vlan_id(dev);
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if (copy_to_user(arg, &args,
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sizeof(struct vlan_ioctl_args)))
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err = -EFAULT;
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@ -3,6 +3,55 @@
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#include <linux/if_vlan.h>
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/**
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* struct vlan_priority_tci_mapping - vlan egress priority mappings
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* @priority: skb priority
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* @vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
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* @next: pointer to next struct
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*/
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struct vlan_priority_tci_mapping {
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u32 priority;
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unsigned short vlan_qos;
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struct vlan_priority_tci_mapping *next;
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};
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/**
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* struct vlan_dev_info - VLAN private device data
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* @nr_ingress_mappings: number of ingress priority mappings
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* @ingress_priority_map: ingress priority mappings
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* @nr_egress_mappings: number of egress priority mappings
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* @egress_priority_map: hash of egress priority mappings
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* @vlan_id: VLAN identifier
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* @flags: device flags
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* @real_dev: underlying netdevice
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* @real_dev_addr: address of underlying netdevice
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* @dent: proc dir entry
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* @cnt_inc_headroom_on_tx: statistic - number of skb expansions on TX
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* @cnt_encap_on_xmit: statistic - number of skb encapsulations on TX
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*/
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struct vlan_dev_info {
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unsigned int nr_ingress_mappings;
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u32 ingress_priority_map[8];
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unsigned int nr_egress_mappings;
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struct vlan_priority_tci_mapping *egress_priority_map[16];
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unsigned short vlan_id;
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unsigned short flags;
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struct net_device *real_dev;
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unsigned char real_dev_addr[ETH_ALEN];
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struct proc_dir_entry *dent;
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unsigned long cnt_inc_headroom_on_tx;
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unsigned long cnt_encap_on_xmit;
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};
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static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
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{
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return netdev_priv(dev);
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}
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#define VLAN_GRP_HASH_SHIFT 5
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#define VLAN_GRP_HASH_SIZE (1 << VLAN_GRP_HASH_SHIFT)
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#define VLAN_GRP_HASH_MASK (VLAN_GRP_HASH_SIZE - 1)
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@ -30,7 +79,6 @@ int vlan_dev_set_egress_priority(const struct net_device *dev,
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u32 skb_prio, short vlan_prio);
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int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
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void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
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void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result);
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int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id);
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void vlan_setup(struct net_device *dev);
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@ -46,3 +46,15 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
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return (polling ? netif_receive_skb(skb) : netif_rx(skb));
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}
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EXPORT_SYMBOL(__vlan_hwaccel_rx);
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struct net_device *vlan_dev_real_dev(const struct net_device *dev)
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{
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return vlan_dev_info(dev)->real_dev;
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}
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EXPORT_SYMBOL_GPL(vlan_dev_real_dev);
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u16 vlan_dev_vlan_id(const struct net_device *dev)
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{
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return vlan_dev_info(dev)->vlan_id;
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}
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EXPORT_SYMBOL_GPL(vlan_dev_vlan_id);
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@ -531,11 +531,6 @@ void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
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strncpy(result, vlan_dev_info(dev)->real_dev->name, 23);
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}
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void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result)
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{
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*result = vlan_dev_info(dev)->vlan_id;
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}
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static int vlan_dev_open(struct net_device *dev)
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{
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struct vlan_dev_info *vlan = vlan_dev_info(dev);
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