3  * INET		802.1Q VLAN
8  *              VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
15  *                - Flush MC-list on VLAN destroy.
32 #include "vlan.h"
38  *	Create the VLAN header for an arbitrary protocol layer
51 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_hard_header()  local
57 	if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) {  in vlan_dev_hard_header()
60 		vlan_tci = vlan->vlan_id;  in vlan_dev_hard_header()
73 		skb->protocol = vlan->vlan_proto;  in vlan_dev_hard_header()
74 		type = ntohs(vlan->vlan_proto);  in vlan_dev_hard_header()
83 	dev = vlan->real_dev;  in vlan_dev_hard_header()
90 static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb)  in vlan_netpoll_send_skb()  argument
93 	return netpoll_send_skb(vlan->netpoll, skb);  in vlan_netpoll_send_skb()
103 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_hard_start_xmit()  local
108 	/* Handle non-VLAN frames if they are sent to us, for example by DHCP.  in vlan_dev_hard_start_xmit()
113 	if (vlan->flags & VLAN_FLAG_REORDER_HDR ||  in vlan_dev_hard_start_xmit()
114 	    veth->h_vlan_proto != vlan->vlan_proto) {  in vlan_dev_hard_start_xmit()
116 		vlan_tci = vlan->vlan_id;  in vlan_dev_hard_start_xmit()
118 		__vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci);  in vlan_dev_hard_start_xmit()
121 	skb->dev = vlan->real_dev;  in vlan_dev_hard_start_xmit()
124 		return vlan_netpoll_send_skb(vlan, skb);  in vlan_dev_hard_start_xmit()
131 		stats = this_cpu_ptr(vlan->vlan_pcpu_stats);  in vlan_dev_hard_start_xmit()
137 		this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped);  in vlan_dev_hard_start_xmit()
161 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_set_ingress_priority()  local
163 	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()
165 	else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)  in vlan_dev_set_ingress_priority()
166 		vlan->nr_ingress_mappings++;  in vlan_dev_set_ingress_priority()
168 	vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;  in vlan_dev_set_ingress_priority()
174 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_set_egress_priority()  local
180 	mp = vlan->egress_priority_map[skb_prio & 0xF];  in vlan_dev_set_egress_priority()
184 				vlan->nr_egress_mappings--;  in vlan_dev_set_egress_priority()
186 				vlan->nr_egress_mappings++;  in vlan_dev_set_egress_priority()
194 	mp = vlan->egress_priority_map[skb_prio & 0xF];  in vlan_dev_set_egress_priority()
207 	vlan->egress_priority_map[skb_prio & 0xF] = np;  in vlan_dev_set_egress_priority()
209 		vlan->nr_egress_mappings++;  in vlan_dev_set_egress_priority()
218 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_change_flags()  local
219 	u32 old_flags = vlan->flags;  in vlan_dev_change_flags()
226 	vlan->flags = (old_flags & ~mask) | (flags & mask);  in vlan_dev_change_flags()
228 	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {  in vlan_dev_change_flags()
229 		if (vlan->flags & VLAN_FLAG_GVRP)  in vlan_dev_change_flags()
235 	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) {  in vlan_dev_change_flags()
236 		if (vlan->flags & VLAN_FLAG_MVRP)  in vlan_dev_change_flags()
262 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_open()  local
263 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_open()
267 	    !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_dev_open()
277 	ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr);  in vlan_dev_open()
279 	if (vlan->flags & VLAN_FLAG_GVRP)  in vlan_dev_open()
282 	if (vlan->flags & VLAN_FLAG_MVRP)  in vlan_dev_open()
286 	    !(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_dev_open()
297 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_stop()  local
298 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_stop()
306 	if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_dev_stop()
501 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_passthru_hard_header()  local
502 	struct net_device *real_dev = vlan->real_dev;  in vlan_passthru_hard_header()
517 	.name	= "vlan",
524 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_init()  local
525 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_init()
536 	if (vlan->flags & VLAN_FLAG_BRIDGE_BINDING)  in vlan_dev_init()
553 …netdev_warn(real_dev, "VLAN features are set incorrectly.  Q-in-Q configurations may not work corr…  in vlan_dev_init()
575 	if (vlan_hw_offload_capable(real_dev->features, vlan->vlan_proto)) {  in vlan_dev_init()
589 	vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats);  in vlan_dev_init()
590 	if (!vlan->vlan_pcpu_stats)  in vlan_dev_init()
593 	/* Get vlan's reference to real_dev */  in vlan_dev_init()
594 	netdev_hold(real_dev, &vlan->dev_tracker, GFP_KERNEL);  in vlan_dev_init()
603 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_free_egress_priority()  local
606 	for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {  in vlan_dev_free_egress_priority()
607 		while ((pm = vlan->egress_priority_map[i]) != NULL) {  in vlan_dev_free_egress_priority()
608 			vlan->egress_priority_map[i] = pm->next;  in vlan_dev_free_egress_priority()
631 	 * checksum offload on the vlan device.  in vlan_dev_fix_features()
644 	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_ethtool_get_link_ksettings()  local
646 	return __ethtool_get_link_ksettings(vlan->real_dev, cmd);  in vlan_ethtool_get_link_ksettings()
660 	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_ethtool_get_ts_info()  local
661 	return ethtool_get_ts_info_by_layer(vlan->real_dev, info);  in vlan_ethtool_get_ts_info()
706 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_netpoll_setup()  local
707 	struct net_device *real_dev = vlan->real_dev;  in vlan_dev_netpoll_setup()
722 	vlan->netpoll = netpoll;  in vlan_dev_netpoll_setup()
730 	struct vlan_dev_priv *vlan= vlan_dev_priv(dev);  in vlan_dev_netpoll_cleanup()  local
731 	struct netpoll *netpoll = vlan->netpoll;  in vlan_dev_netpoll_cleanup()
736 	vlan->netpoll = NULL;  in vlan_dev_netpoll_cleanup()
751 	struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev);  in vlan_dev_fill_forward_path()  local
754 	path->encap.id = vlan->vlan_id;  in vlan_dev_fill_forward_path()
755 	path->encap.proto = vlan->vlan_proto;  in vlan_dev_fill_forward_path()
757 	ctx->dev = vlan->real_dev;  in vlan_dev_fill_forward_path()
758 	if (ctx->num_vlans >= ARRAY_SIZE(ctx->vlan))  in vlan_dev_fill_forward_path()
761 	ctx->vlan[ctx->num_vlans].id = vlan->vlan_id;  in vlan_dev_fill_forward_path()
762 	ctx->vlan[ctx->num_vlans].proto = vlan->vlan_proto;  in vlan_dev_fill_forward_path()
1048 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in vlan_dev_free()  local
1050 	free_percpu(vlan->vlan_pcpu_stats);  in vlan_dev_free()
1051 	vlan->vlan_pcpu_stats = NULL;  in vlan_dev_free()
1053 	/* Get rid of the vlan's reference to real_dev */  in vlan_dev_free()
1054 	netdev_put(vlan->real_dev, &vlan->dev_tracker);  in vlan_dev_free()