2  * INET		802.1Q VLAN
7  *              VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
13  *		Use hash table for VLAN groups - David S. Miller <davem@redhat.com>
40 #include "vlan.h"
45 /* Global VLAN variables */
49 const char vlan_fullname[] = "802.1Q VLAN Support";
80 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in unregister_vlan_dev()  local
81 	struct net_device *real_dev = vlan->real_dev;  in unregister_vlan_dev()
84 	u16 vlan_id = vlan->vlan_id;  in unregister_vlan_dev()
95 	if (vlan->flags & VLAN_FLAG_MVRP)  in unregister_vlan_dev()
97 	if (vlan->flags & VLAN_FLAG_GVRP)  in unregister_vlan_dev()
100 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, NULL);  in unregister_vlan_dev()
114 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);  in unregister_vlan_dev()
116 	/* Get rid of the vlan's reference to real_dev */  in unregister_vlan_dev()
133 		NL_SET_ERR_MSG_MOD(extack, "VLAN device already exists");  in vlan_check_real_dev()
142 	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);  in register_vlan_dev()  local
143 	struct net_device *real_dev = vlan->real_dev;  in register_vlan_dev()
144 	u16 vlan_id = vlan->vlan_id;  in register_vlan_dev()
149 	err = vlan_vid_add(real_dev, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
167 	err = vlan_group_prealloc_vid(grp, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
171 	vlan->nest_level = dev_get_nest_level(real_dev) + 1;  in register_vlan_dev()
189 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, dev);  in register_vlan_dev()
203 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);  in register_vlan_dev()
207 /*  Attach a VLAN device to a mac address (ie Ethernet Card).
213 	struct vlan_dev_priv *vlan;  in register_vlan_device()  local
234 		/* Put our vlan.VID in the name.  in register_vlan_device()
237 		snprintf(name, IFNAMSIZ, "vlan%i", vlan_id);  in register_vlan_device()
240 		/* Put our vlan.VID in the name.  in register_vlan_device()
246 		/* Put our vlan.VID in the name.  in register_vlan_device()
250 		snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id);  in register_vlan_device()
260 	/* need 4 bytes for extra VLAN header info,  in register_vlan_device()
265 	vlan = vlan_dev_priv(new_dev);  in register_vlan_device()
266 	vlan->vlan_proto = htons(ETH_P_8021Q);  in register_vlan_device()
267 	vlan->vlan_id = vlan_id;  in register_vlan_device()
268 	vlan->real_dev = real_dev;  in register_vlan_device()
269 	vlan->dent = NULL;  in register_vlan_device()
270 	vlan->flags = VLAN_FLAG_REORDER_HDR;  in register_vlan_device()
288 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);  in vlan_sync_address()  local
291 	if (ether_addr_equal(vlan->real_dev_addr, dev->dev_addr))  in vlan_sync_address()
294 	/* vlan continues to inherit address of lower device */  in vlan_sync_address()
298 	/* vlan address was different from the old address and is equal to  in vlan_sync_address()
300 	if (!ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&  in vlan_sync_address()
304 	/* vlan address was equal to the old address and is different from  in vlan_sync_address()
306 	if (ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&  in vlan_sync_address()
311 	ether_addr_copy(vlan->real_dev_addr, dev->dev_addr);  in vlan_sync_address()
317 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);  in vlan_transfer_features()  local
322 	if (vlan_hw_offload_capable(dev->features, vlan->vlan_proto))  in vlan_transfer_features()
332 	vlandev->priv_flags |= (vlan->real_dev->priv_flags & IFF_XMIT_DST_RELEASE);  in vlan_transfer_features()
365 	struct vlan_dev_priv *vlan;  in vlan_device_event()  local
379 		pr_info("adding VLAN 0 to HW filter on device %s\n",  in vlan_device_event()
398 		/* Propagate real device state to vlan devices */  in vlan_device_event()
439 			vlan = vlan_dev_priv(vlandev);  in vlan_device_event()
440 			if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_device_event()
460 			vlan = vlan_dev_priv(vlandev);  in vlan_device_event()
461 			if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))  in vlan_device_event()
494 		/* Propagate to vlan devices */  in vlan_device_event()
529  *	VLAN IOCTL handler.