3  * INET		802.1Q VLAN
8  *              VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
14  *		Use hash table for VLAN groups - David S. Miller <davem@redhat.com>
36 #include "vlan.h"
41 /* Global VLAN variables */
45 const char vlan_fullname[] = "802.1Q VLAN Support";
80 					    struct vlan_dev_priv *vlan)  in vlan_stacked_transfer_operstate()  argument
82 	if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))  in vlan_stacked_transfer_operstate()
88 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in unregister_vlan_dev()  local
89 	struct net_device *real_dev = vlan->real_dev;  in unregister_vlan_dev()
92 	u16 vlan_id = vlan->vlan_id;  in unregister_vlan_dev()
103 	if (vlan->flags & VLAN_FLAG_MVRP)  in unregister_vlan_dev()
105 	if (vlan->flags & VLAN_FLAG_GVRP)  in unregister_vlan_dev()
108 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, NULL);  in unregister_vlan_dev()
122 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);  in unregister_vlan_dev()
124 	/* Get rid of the vlan's reference to real_dev */  in unregister_vlan_dev()
141 		NL_SET_ERR_MSG_MOD(extack, "VLAN device already exists");  in vlan_check_real_dev()
150 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in register_vlan_dev()  local
151 	struct net_device *real_dev = vlan->real_dev;  in register_vlan_dev()
152 	u16 vlan_id = vlan->vlan_id;  in register_vlan_dev()
157 	err = vlan_vid_add(real_dev, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
175 	err = vlan_group_prealloc_vid(grp, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
190 	vlan_stacked_transfer_operstate(real_dev, dev, vlan);  in register_vlan_dev()
196 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, dev);  in register_vlan_dev()
210 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
214 /*  Attach a VLAN device to a mac address (ie Ethernet Card).
220 	struct vlan_dev_priv *vlan;  in register_vlan_device()  local
241 		/* Put our vlan.VID in the name.  in register_vlan_device()
244 		snprintf(name, IFNAMSIZ, "vlan%i", vlan_id);  in register_vlan_device()
247 		/* Put our vlan.VID in the name.  in register_vlan_device()
253 		/* Put our vlan.VID in the name.  in register_vlan_device()
257 		snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id);  in register_vlan_device()
267 	/* need 4 bytes for extra VLAN header info,  in register_vlan_device()
272 	vlan = vlan_dev_priv(new_dev);  in register_vlan_device()
273 	vlan->vlan_proto = htons(ETH_P_8021Q);  in register_vlan_device()
274 	vlan->vlan_id = vlan_id;  in register_vlan_device()
275 	vlan->real_dev = real_dev;  in register_vlan_device()
276 	vlan->dent = NULL;  in register_vlan_device()
277 	vlan->flags = VLAN_FLAG_REORDER_HDR;  in register_vlan_device()
295 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);  in vlan_sync_address()  local
298 	if (ether_addr_equal(vlan->real_dev_addr, dev->dev_addr))  in vlan_sync_address()
301 	/* vlan continues to inherit address of lower device */  in vlan_sync_address()
305 	/* vlan address was different from the old address and is equal to  in vlan_sync_address()
307 	if (!ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&  in vlan_sync_address()
311 	/* vlan address was equal to the old address and is different from  in vlan_sync_address()
313 	if (ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&  in vlan_sync_address()
318 	ether_addr_copy(vlan->real_dev_addr, dev->dev_addr);  in vlan_sync_address()
324 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);  in vlan_transfer_features()  local
329 	if (vlan_hw_offload_capable(dev->features, vlan->vlan_proto))  in vlan_transfer_features()
339 	vlandev->priv_flags |= (vlan->real_dev->priv_flags & IFF_XMIT_DST_RELEASE);  in vlan_transfer_features()
340 	vlandev->hw_enc_features = vlan_tnl_features(vlan->real_dev);  in vlan_transfer_features()
374 	struct vlan_dev_priv *vlan;  in vlan_device_event()  local
388 		pr_info("adding VLAN 0 to HW filter on device %s\n",  in vlan_device_event()
407 		/* Propagate real device state to vlan devices */  in vlan_device_event()
449 			vlan = vlan_dev_priv(vlandev);  in vlan_device_event()
450 			if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_device_event()
471 			vlan = vlan_dev_priv(vlandev);  in vlan_device_event()
472 			if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_device_event()
475 			vlan_stacked_transfer_operstate(dev, vlandev, vlan);  in vlan_device_event()
506 		/* Propagate to vlan devices */  in vlan_device_event()
541  *	VLAN IOCTL handler.