3  * INET		802.1Q VLAN
8  *              VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
15  *                - Flush MC-list on VLAN destroy.
30 #include "vlan.h"
36  *	Create the VLAN header for an arbitrary protocol layer
49 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_hard_header()  local
55 	if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) {  in vlan_dev_hard_header()
58 		vlan_tci = vlan->vlan_id;  in vlan_dev_hard_header()
71 		skb->protocol = vlan->vlan_proto;  in vlan_dev_hard_header()
72 		type = ntohs(vlan->vlan_proto);  in vlan_dev_hard_header()
81 	dev = vlan->real_dev;  in vlan_dev_hard_header()
88 static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb)  in vlan_netpoll_send_skb()  argument
91 	return netpoll_send_skb(vlan->netpoll, skb);  in vlan_netpoll_send_skb()
101 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_hard_start_xmit()  local
106 	/* Handle non-VLAN frames if they are sent to us, for example by DHCP.  in vlan_dev_hard_start_xmit()
111 	if (veth->h_vlan_proto != vlan->vlan_proto ||  in vlan_dev_hard_start_xmit()
112 	    vlan->flags & VLAN_FLAG_REORDER_HDR) {  in vlan_dev_hard_start_xmit()
114 		vlan_tci = vlan->vlan_id;  in vlan_dev_hard_start_xmit()
116 		__vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci);  in vlan_dev_hard_start_xmit()
119 	skb->dev = vlan->real_dev;  in vlan_dev_hard_start_xmit()
122 		return vlan_netpoll_send_skb(vlan, skb);  in vlan_dev_hard_start_xmit()
129 		stats = this_cpu_ptr(vlan->vlan_pcpu_stats);  in vlan_dev_hard_start_xmit()
135 		this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped);  in vlan_dev_hard_start_xmit()
159 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_set_ingress_priority()  local
161 	if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)  in vlan_dev_set_ingress_priority()
162 		vlan->nr_ingress_mappings--;  in vlan_dev_set_ingress_priority()
163 	else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)  in vlan_dev_set_ingress_priority()
164 		vlan->nr_ingress_mappings++;  in vlan_dev_set_ingress_priority()
166 	vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;  in vlan_dev_set_ingress_priority()
172 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_set_egress_priority()  local
178 	mp = vlan->egress_priority_map[skb_prio & 0xF];  in vlan_dev_set_egress_priority()
182 				vlan->nr_egress_mappings--;  in vlan_dev_set_egress_priority()
184 				vlan->nr_egress_mappings++;  in vlan_dev_set_egress_priority()
192 	mp = vlan->egress_priority_map[skb_prio & 0xF];  in vlan_dev_set_egress_priority()
205 	vlan->egress_priority_map[skb_prio & 0xF] = np;  in vlan_dev_set_egress_priority()
207 		vlan->nr_egress_mappings++;  in vlan_dev_set_egress_priority()
216 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_change_flags()  local
217 	u32 old_flags = vlan->flags;  in vlan_dev_change_flags()
224 	vlan->flags = (old_flags & ~mask) | (flags & mask);  in vlan_dev_change_flags()
226 	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {  in vlan_dev_change_flags()
227 		if (vlan->flags & VLAN_FLAG_GVRP)  in vlan_dev_change_flags()
233 	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) {  in vlan_dev_change_flags()
234 		if (vlan->flags & VLAN_FLAG_MVRP)  in vlan_dev_change_flags()
260 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_open()  local
261 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_open()
265 	    !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_dev_open()
286 	ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr);  in vlan_dev_open()
288 	if (vlan->flags & VLAN_FLAG_GVRP)  in vlan_dev_open()
291 	if (vlan->flags & VLAN_FLAG_MVRP)  in vlan_dev_open()
295 	    !(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_dev_open()
312 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_stop()  local
313 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_stop()
325 	if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_dev_stop()
492  * vlan network devices have devices nesting below it, and are a special
523 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_passthru_hard_header()  local
524 	struct net_device *real_dev = vlan->real_dev;  in vlan_passthru_hard_header()
538 	.name	= "vlan",
545 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_init()  local
546 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_init()
557 	if (vlan->flags & VLAN_FLAG_BRIDGE_BINDING)  in vlan_dev_init()
570 …netdev_warn(real_dev, "VLAN features are set incorrectly.  Q-in-Q configurations may not work corr…  in vlan_dev_init()
591 	if (vlan_hw_offload_capable(real_dev->features, vlan->vlan_proto)) {  in vlan_dev_init()
605 	vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats);  in vlan_dev_init()
606 	if (!vlan->vlan_pcpu_stats)  in vlan_dev_init()
609 	/* Get vlan's reference to real_dev */  in vlan_dev_init()
619 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_uninit()  local
622 	for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {  in vlan_dev_uninit()
623 		while ((pm = vlan->egress_priority_map[i]) != NULL) {  in vlan_dev_uninit()
624 			vlan->egress_priority_map[i] = pm->next;  in vlan_dev_uninit()
642 	 * checksum offload on the vlan device.  in vlan_dev_fix_features()
656 	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_ethtool_get_link_ksettings()  local
658 	return __ethtool_get_link_ksettings(vlan->real_dev, cmd);  in vlan_ethtool_get_link_ksettings()
672 	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_ethtool_get_ts_info()  local
673 	const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops;  in vlan_ethtool_get_ts_info()
674 	struct phy_device *phydev = vlan->real_dev->phydev;  in vlan_ethtool_get_ts_info()
679 		return ops->get_ts_info(vlan->real_dev, info);  in vlan_ethtool_get_ts_info()
731 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_netpoll_setup()  local
732 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_netpoll_setup()
747 	vlan->netpoll = netpoll;  in vlan_dev_netpoll_setup()
755 	struct vlan_dev_priv *vlan= vlan_dev_priv(dev);  in vlan_dev_netpoll_cleanup()  local
756 	struct netpoll *netpoll = vlan->netpoll;  in vlan_dev_netpoll_cleanup()
761 	vlan->netpoll = NULL;  in vlan_dev_netpoll_cleanup()
815 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_free()  local
817 	free_percpu(vlan->vlan_pcpu_stats);  in vlan_dev_free()
818 	vlan->vlan_pcpu_stats = NULL;  in vlan_dev_free()
820 	/* Get rid of the vlan's reference to real_dev */  in vlan_dev_free()
821 	dev_put(vlan->real_dev);  in vlan_dev_free()