3  * INET		802.1Q VLAN
8  *              VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
15  *                - Flush MC-list on VLAN destroy.
31 #include "vlan.h"
37  *	Create the VLAN header for an arbitrary protocol layer
50 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_hard_header()  local
56 	if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) {  in vlan_dev_hard_header()
59 		vlan_tci = vlan->vlan_id;  in vlan_dev_hard_header()
72 		skb->protocol = vlan->vlan_proto;  in vlan_dev_hard_header()
73 		type = ntohs(vlan->vlan_proto);  in vlan_dev_hard_header()
82 	dev = vlan->real_dev;  in vlan_dev_hard_header()
89 static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb)  in vlan_netpoll_send_skb()  argument
92 	return netpoll_send_skb(vlan->netpoll, skb);  in vlan_netpoll_send_skb()
102 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_hard_start_xmit()  local
107 	/* Handle non-VLAN frames if they are sent to us, for example by DHCP.  in vlan_dev_hard_start_xmit()
112 	if (vlan->flags & VLAN_FLAG_REORDER_HDR ||  in vlan_dev_hard_start_xmit()
113 	    veth->h_vlan_proto != vlan->vlan_proto) {  in vlan_dev_hard_start_xmit()
115 		vlan_tci = vlan->vlan_id;  in vlan_dev_hard_start_xmit()
117 		__vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci);  in vlan_dev_hard_start_xmit()
120 	skb->dev = vlan->real_dev;  in vlan_dev_hard_start_xmit()
123 		return vlan_netpoll_send_skb(vlan, skb);  in vlan_dev_hard_start_xmit()
130 		stats = this_cpu_ptr(vlan->vlan_pcpu_stats);  in vlan_dev_hard_start_xmit()
136 		this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped);  in vlan_dev_hard_start_xmit()
160 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_set_ingress_priority()  local
162 	if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)  in vlan_dev_set_ingress_priority()
163 		vlan->nr_ingress_mappings--;  in vlan_dev_set_ingress_priority()
164 	else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)  in vlan_dev_set_ingress_priority()
165 		vlan->nr_ingress_mappings++;  in vlan_dev_set_ingress_priority()
167 	vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;  in vlan_dev_set_ingress_priority()
173 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_set_egress_priority()  local
179 	mp = vlan->egress_priority_map[skb_prio & 0xF];  in vlan_dev_set_egress_priority()
183 				vlan->nr_egress_mappings--;  in vlan_dev_set_egress_priority()
185 				vlan->nr_egress_mappings++;  in vlan_dev_set_egress_priority()
193 	mp = vlan->egress_priority_map[skb_prio & 0xF];  in vlan_dev_set_egress_priority()
206 	vlan->egress_priority_map[skb_prio & 0xF] = np;  in vlan_dev_set_egress_priority()
208 		vlan->nr_egress_mappings++;  in vlan_dev_set_egress_priority()
217 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_change_flags()  local
218 	u32 old_flags = vlan->flags;  in vlan_dev_change_flags()
225 	vlan->flags = (old_flags & ~mask) | (flags & mask);  in vlan_dev_change_flags()
227 	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {  in vlan_dev_change_flags()
228 		if (vlan->flags & VLAN_FLAG_GVRP)  in vlan_dev_change_flags()
234 	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) {  in vlan_dev_change_flags()
235 		if (vlan->flags & VLAN_FLAG_MVRP)  in vlan_dev_change_flags()
261 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_open()  local
262 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_open()
266 	    !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_dev_open()
276 	ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr);  in vlan_dev_open()
278 	if (vlan->flags & VLAN_FLAG_GVRP)  in vlan_dev_open()
281 	if (vlan->flags & VLAN_FLAG_MVRP)  in vlan_dev_open()
285 	    !(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_dev_open()
296 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_stop()  local
297 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_stop()
305 	if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_dev_stop()
502 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_passthru_hard_header()  local
503 	struct net_device *real_dev = vlan->real_dev;  in vlan_passthru_hard_header()
518 	.name	= "vlan",
525 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_init()  local
526 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_init()
537 	if (vlan->flags & VLAN_FLAG_BRIDGE_BINDING)  in vlan_dev_init()
554 …netdev_warn(real_dev, "VLAN features are set incorrectly.  Q-in-Q configurations may not work corr…  in vlan_dev_init()
576 	if (vlan_hw_offload_capable(real_dev->features, vlan->vlan_proto)) {  in vlan_dev_init()
590 	vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats);  in vlan_dev_init()
591 	if (!vlan->vlan_pcpu_stats)  in vlan_dev_init()
594 	/* Get vlan's reference to real_dev */  in vlan_dev_init()
595 	netdev_hold(real_dev, &vlan->dev_tracker, GFP_KERNEL);  in vlan_dev_init()
604 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_free_egress_priority()  local
607 	for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {  in vlan_dev_free_egress_priority()
608 		while ((pm = vlan->egress_priority_map[i]) != NULL) {  in vlan_dev_free_egress_priority()
609 			vlan->egress_priority_map[i] = pm->next;  in vlan_dev_free_egress_priority()
632 	 * checksum offload on the vlan device.  in vlan_dev_fix_features()
645 	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_ethtool_get_link_ksettings()  local
647 	return __ethtool_get_link_ksettings(vlan->real_dev, cmd);  in vlan_ethtool_get_link_ksettings()
661 	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_ethtool_get_ts_info()  local
662 	return ethtool_get_ts_info_by_layer(vlan->real_dev, info);  in vlan_ethtool_get_ts_info()
707 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_netpoll_setup()  local
708 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_netpoll_setup()
723 	vlan->netpoll = netpoll;  in vlan_dev_netpoll_setup()
731 	struct vlan_dev_priv *vlan= vlan_dev_priv(dev);  in vlan_dev_netpoll_cleanup()  local
732 	struct netpoll *netpoll = vlan->netpoll;  in vlan_dev_netpoll_cleanup()
737 	vlan->netpoll = NULL;  in vlan_dev_netpoll_cleanup()
752 	struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev);  in vlan_dev_fill_forward_path()  local
755 	path->encap.id = vlan->vlan_id;  in vlan_dev_fill_forward_path()
756 	path->encap.proto = vlan->vlan_proto;  in vlan_dev_fill_forward_path()
758 	ctx->dev = vlan->real_dev;  in vlan_dev_fill_forward_path()
759 	if (ctx->num_vlans >= ARRAY_SIZE(ctx->vlan))  in vlan_dev_fill_forward_path()
762 	ctx->vlan[ctx->num_vlans].id = vlan->vlan_id;  in vlan_dev_fill_forward_path()
763 	ctx->vlan[ctx->num_vlans].proto = vlan->vlan_proto;  in vlan_dev_fill_forward_path()
1049 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_free()  local
1051 	free_percpu(vlan->vlan_pcpu_stats);  in vlan_dev_free()
1052 	vlan->vlan_pcpu_stats = NULL;  in vlan_dev_free()
1054 	/* Get rid of the vlan's reference to real_dev */  in vlan_dev_free()
1055 	netdev_put(vlan->real_dev, &vlan->dev_tracker);  in vlan_dev_free()