3 * Ethernet-type device handling.
5 * Authors: Ben Greear <greearb@candelatech.com>
6 * Please send support related email to: netdev@vger.kernel.org
7 * VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
9 * Fixes: Mar 22 2001: Martin Bokaemper <mbokaemper@unispherenetworks.com>
10 * - reset skb->pkt_type on incoming packets when MAC was changed
11 * - see that changed MAC is saddr for outgoing packets
12 * Oct 20, 2001: Ard van Breeman:
13 * - Fix MC-list, finally.
14 * - Flush MC-list on VLAN destroy.
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version
20 * 2 of the License, or (at your option) any later version.
23 #include <linux/module.h>
24 #include <linux/skbuff.h>
25 #include <linux/netdevice.h>
26 #include <linux/etherdevice.h>
27 #include <linux/ethtool.h>
32 #include <linux/if_vlan.h>
35 * Rebuild the Ethernet MAC header. This is called after an ARP
36 * (or in future other address resolution) has completed on this
37 * sk_buff. We now let ARP fill in the other fields.
39 * This routine CANNOT use cached dst->neigh!
40 * Really, it is used only when dst->neigh is wrong.
42 * TODO: This needs a checkup, I'm ignorant here. --BLG
44 static int vlan_dev_rebuild_header(struct sk_buff *skb)
46 struct net_device *dev = skb->dev;
47 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
49 switch (veth->h_vlan_encapsulated_proto) {
53 /* TODO: Confirm this will work with VLAN headers... */
54 return arp_find(veth->h_dest, skb);
57 pr_debug("%s: unable to resolve type %X addresses.\n",
58 dev->name, ntohs(veth->h_vlan_encapsulated_proto));
60 memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
67 static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb)
69 if (vlan_dev_info(skb->dev)->flags & VLAN_FLAG_REORDER_HDR) {
70 if (skb_cow(skb, skb_headroom(skb)) < 0)
73 /* Lifted from Gleb's VLAN code... */
74 memmove(skb->data - ETH_HLEN,
75 skb->data - VLAN_ETH_HLEN, 12);
76 skb->mac_header += VLAN_HLEN;
83 static inline void vlan_set_encap_proto(struct sk_buff *skb,
84 struct vlan_hdr *vhdr)
90 * Was a VLAN packet, grab the encapsulated protocol, which the layer
91 * three protocols care about.
94 proto = vhdr->h_vlan_encapsulated_proto;
95 if (ntohs(proto) >= 1536) {
96 skb->protocol = proto;
101 if (*(unsigned short *)rawp == 0xFFFF)
103 * This is a magic hack to spot IPX packets. Older Novell
104 * breaks the protocol design and runs IPX over 802.3 without
105 * an 802.2 LLC layer. We look for FFFF which isn't a used
106 * 802.2 SSAP/DSAP. This won't work for fault tolerant netware
107 * but does for the rest.
109 skb->protocol = htons(ETH_P_802_3);
114 skb->protocol = htons(ETH_P_802_2);
118 * Determine the packet's protocol ID. The rule here is that we
119 * assume 802.3 if the type field is short enough to be a length.
120 * This is normal practice and works for any 'now in use' protocol.
122 * Also, at this point we assume that we ARE dealing exclusively with
123 * VLAN packets, or packets that should be made into VLAN packets based
124 * on a default VLAN ID.
126 * NOTE: Should be similar to ethernet/eth.c.
128 * SANITY NOTE: This method is called when a packet is moving up the stack
129 * towards userland. To get here, it would have already passed
130 * through the ethernet/eth.c eth_type_trans() method.
131 * SANITY NOTE 2: We are referencing to the VLAN_HDR frields, which MAY be
132 * stored UNALIGNED in the memory. RISC systems don't like
133 * such cases very much...
134 * SANITY NOTE 2a: According to Dave Miller & Alexey, it will always be
135 * aligned, so there doesn't need to be any of the unaligned
136 * stuff. It has been commented out now... --Ben
139 int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
140 struct packet_type *ptype, struct net_device *orig_dev)
142 struct vlan_hdr *vhdr;
143 struct vlan_rx_stats *rx_stats;
147 skb = skb_share_check(skb, GFP_ATOMIC);
151 if (unlikely(!pskb_may_pull(skb, VLAN_HLEN)))
154 vhdr = (struct vlan_hdr *)skb->data;
155 vlan_tci = ntohs(vhdr->h_vlan_TCI);
156 vlan_id = vlan_tci & VLAN_VID_MASK;
159 skb->dev = __find_vlan_dev(dev, vlan_id);
161 pr_debug("%s: ERROR: No net_device for VID: %u on dev: %s\n",
162 __func__, vlan_id, dev->name);
166 rx_stats = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats,
168 rx_stats->rx_packets++;
169 rx_stats->rx_bytes += skb->len;
171 skb_pull_rcsum(skb, VLAN_HLEN);
173 skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci);
175 pr_debug("%s: priority: %u for TCI: %hu\n",
176 __func__, skb->priority, vlan_tci);
178 switch (skb->pkt_type) {
179 case PACKET_BROADCAST: /* Yeah, stats collect these together.. */
180 /* stats->broadcast ++; // no such counter :-( */
183 case PACKET_MULTICAST:
184 rx_stats->multicast++;
187 case PACKET_OTHERHOST:
188 /* Our lower layer thinks this is not local, let's make sure.
189 * This allows the VLAN to have a different MAC than the
190 * underlying device, and still route correctly.
192 if (!compare_ether_addr(eth_hdr(skb)->h_dest,
194 skb->pkt_type = PACKET_HOST;
200 vlan_set_encap_proto(skb, vhdr);
202 skb = vlan_check_reorder_header(skb);
204 rx_stats->rx_errors++;
210 return NET_RX_SUCCESS;
220 vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
222 struct vlan_priority_tci_mapping *mp;
224 mp = vlan_dev_info(dev)->egress_priority_map[(skb->priority & 0xF)];
226 if (mp->priority == skb->priority) {
227 return mp->vlan_qos; /* This should already be shifted
228 * to mask correctly with the
237 * Create the VLAN header for an arbitrary protocol layer
239 * saddr=NULL means use device source address
240 * daddr=NULL means leave destination address (eg unresolved arp)
242 * This is called when the SKB is moving down the stack towards the
245 static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
247 const void *daddr, const void *saddr,
250 struct vlan_hdr *vhdr;
251 unsigned int vhdrlen = 0;
255 if (WARN_ON(skb_headroom(skb) < dev->hard_header_len))
258 if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) {
259 vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
261 vlan_tci = vlan_dev_info(dev)->vlan_id;
262 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
263 vhdr->h_vlan_TCI = htons(vlan_tci);
266 * Set the protocol type. For a packet of type ETH_P_802_3 we
267 * put the length in here instead. It is up to the 802.2
268 * layer to carry protocol information.
270 if (type != ETH_P_802_3)
271 vhdr->h_vlan_encapsulated_proto = htons(type);
273 vhdr->h_vlan_encapsulated_proto = htons(len);
275 skb->protocol = htons(ETH_P_8021Q);
280 /* Before delegating work to the lower layer, enter our MAC-address */
282 saddr = dev->dev_addr;
284 /* Now make the underlying real hard header */
285 dev = vlan_dev_info(dev)->real_dev;
286 rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen);
292 static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
293 struct net_device *dev)
295 int i = skb_get_queue_mapping(skb);
296 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
297 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
301 /* Handle non-VLAN frames if they are sent to us, for example by DHCP.
303 * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
304 * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
306 if (veth->h_vlan_proto != htons(ETH_P_8021Q) ||
307 vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR) {
308 unsigned int orig_headroom = skb_headroom(skb);
311 vlan_dev_info(dev)->cnt_encap_on_xmit++;
313 vlan_tci = vlan_dev_info(dev)->vlan_id;
314 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
315 skb = __vlan_put_tag(skb, vlan_tci);
321 if (orig_headroom < VLAN_HLEN)
322 vlan_dev_info(dev)->cnt_inc_headroom_on_tx++;
326 skb->dev = vlan_dev_info(dev)->real_dev;
328 ret = dev_queue_xmit(skb);
330 if (likely(ret == NET_XMIT_SUCCESS)) {
332 txq->tx_bytes += len;
339 static netdev_tx_t vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb,
340 struct net_device *dev)
342 int i = skb_get_queue_mapping(skb);
343 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
348 vlan_tci = vlan_dev_info(dev)->vlan_id;
349 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
350 skb = __vlan_hwaccel_put_tag(skb, vlan_tci);
352 skb->dev = vlan_dev_info(dev)->real_dev;
354 ret = dev_queue_xmit(skb);
356 if (likely(ret == NET_XMIT_SUCCESS)) {
358 txq->tx_bytes += len;
365 static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
367 /* TODO: gotta make sure the underlying layer can handle it,
368 * maybe an IFF_VLAN_CAPABLE flag for devices?
370 if (vlan_dev_info(dev)->real_dev->mtu < new_mtu)
378 void vlan_dev_set_ingress_priority(const struct net_device *dev,
379 u32 skb_prio, u16 vlan_prio)
381 struct vlan_dev_info *vlan = vlan_dev_info(dev);
383 if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
384 vlan->nr_ingress_mappings--;
385 else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
386 vlan->nr_ingress_mappings++;
388 vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
391 int vlan_dev_set_egress_priority(const struct net_device *dev,
392 u32 skb_prio, u16 vlan_prio)
394 struct vlan_dev_info *vlan = vlan_dev_info(dev);
395 struct vlan_priority_tci_mapping *mp = NULL;
396 struct vlan_priority_tci_mapping *np;
397 u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
399 /* See if a priority mapping exists.. */
400 mp = vlan->egress_priority_map[skb_prio & 0xF];
402 if (mp->priority == skb_prio) {
403 if (mp->vlan_qos && !vlan_qos)
404 vlan->nr_egress_mappings--;
405 else if (!mp->vlan_qos && vlan_qos)
406 vlan->nr_egress_mappings++;
407 mp->vlan_qos = vlan_qos;
413 /* Create a new mapping then. */
414 mp = vlan->egress_priority_map[skb_prio & 0xF];
415 np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
420 np->priority = skb_prio;
421 np->vlan_qos = vlan_qos;
422 vlan->egress_priority_map[skb_prio & 0xF] = np;
424 vlan->nr_egress_mappings++;
428 /* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
429 int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
431 struct vlan_dev_info *vlan = vlan_dev_info(dev);
432 u32 old_flags = vlan->flags;
434 if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
435 VLAN_FLAG_LOOSE_BINDING))
438 vlan->flags = (old_flags & ~mask) | (flags & mask);
440 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
441 if (vlan->flags & VLAN_FLAG_GVRP)
442 vlan_gvrp_request_join(dev);
444 vlan_gvrp_request_leave(dev);
449 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
451 strncpy(result, vlan_dev_info(dev)->real_dev->name, 23);
454 static int vlan_dev_open(struct net_device *dev)
456 struct vlan_dev_info *vlan = vlan_dev_info(dev);
457 struct net_device *real_dev = vlan->real_dev;
460 if (!(real_dev->flags & IFF_UP) &&
461 !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
464 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
465 err = dev_unicast_add(real_dev, dev->dev_addr);
470 if (dev->flags & IFF_ALLMULTI) {
471 err = dev_set_allmulti(real_dev, 1);
475 if (dev->flags & IFF_PROMISC) {
476 err = dev_set_promiscuity(real_dev, 1);
481 memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);
483 if (vlan->flags & VLAN_FLAG_GVRP)
484 vlan_gvrp_request_join(dev);
486 netif_carrier_on(dev);
490 if (dev->flags & IFF_ALLMULTI)
491 dev_set_allmulti(real_dev, -1);
493 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
494 dev_unicast_delete(real_dev, dev->dev_addr);
496 netif_carrier_off(dev);
500 static int vlan_dev_stop(struct net_device *dev)
502 struct vlan_dev_info *vlan = vlan_dev_info(dev);
503 struct net_device *real_dev = vlan->real_dev;
505 if (vlan->flags & VLAN_FLAG_GVRP)
506 vlan_gvrp_request_leave(dev);
508 dev_mc_unsync(real_dev, dev);
509 dev_unicast_unsync(real_dev, dev);
510 if (dev->flags & IFF_ALLMULTI)
511 dev_set_allmulti(real_dev, -1);
512 if (dev->flags & IFF_PROMISC)
513 dev_set_promiscuity(real_dev, -1);
515 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
516 dev_unicast_delete(real_dev, dev->dev_addr);
518 netif_carrier_off(dev);
522 static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
524 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
525 struct sockaddr *addr = p;
528 if (!is_valid_ether_addr(addr->sa_data))
529 return -EADDRNOTAVAIL;
531 if (!(dev->flags & IFF_UP))
534 if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
535 err = dev_unicast_add(real_dev, addr->sa_data);
540 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
541 dev_unicast_delete(real_dev, dev->dev_addr);
544 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
548 static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
550 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
551 const struct net_device_ops *ops = real_dev->netdev_ops;
553 int err = -EOPNOTSUPP;
555 strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
556 ifrr.ifr_ifru = ifr->ifr_ifru;
562 if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
563 err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
568 ifr->ifr_ifru = ifrr.ifr_ifru;
573 static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
575 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
576 const struct net_device_ops *ops = real_dev->netdev_ops;
579 if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
580 err = ops->ndo_neigh_setup(real_dev, pa);
585 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
586 static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
587 struct scatterlist *sgl, unsigned int sgc)
589 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
590 const struct net_device_ops *ops = real_dev->netdev_ops;
593 if (ops->ndo_fcoe_ddp_setup)
594 rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
599 static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
601 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
602 const struct net_device_ops *ops = real_dev->netdev_ops;
605 if (ops->ndo_fcoe_ddp_done)
606 len = ops->ndo_fcoe_ddp_done(real_dev, xid);
611 static int vlan_dev_fcoe_enable(struct net_device *dev)
613 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
614 const struct net_device_ops *ops = real_dev->netdev_ops;
617 if (ops->ndo_fcoe_enable)
618 rc = ops->ndo_fcoe_enable(real_dev);
622 static int vlan_dev_fcoe_disable(struct net_device *dev)
624 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
625 const struct net_device_ops *ops = real_dev->netdev_ops;
628 if (ops->ndo_fcoe_disable)
629 rc = ops->ndo_fcoe_disable(real_dev);
633 static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
635 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
636 const struct net_device_ops *ops = real_dev->netdev_ops;
639 if (ops->ndo_fcoe_get_wwn)
640 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
645 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
647 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
649 if (change & IFF_ALLMULTI)
650 dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
651 if (change & IFF_PROMISC)
652 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
655 static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
657 dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
658 dev_unicast_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
662 * vlan network devices have devices nesting below it, and are a special
663 * "super class" of normal network devices; split their locks off into a
664 * separate class since they always nest.
666 static struct lock_class_key vlan_netdev_xmit_lock_key;
667 static struct lock_class_key vlan_netdev_addr_lock_key;
669 static void vlan_dev_set_lockdep_one(struct net_device *dev,
670 struct netdev_queue *txq,
673 lockdep_set_class_and_subclass(&txq->_xmit_lock,
674 &vlan_netdev_xmit_lock_key,
678 static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
680 lockdep_set_class_and_subclass(&dev->addr_list_lock,
681 &vlan_netdev_addr_lock_key,
683 netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
686 static const struct header_ops vlan_header_ops = {
687 .create = vlan_dev_hard_header,
688 .rebuild = vlan_dev_rebuild_header,
689 .parse = eth_header_parse,
692 static const struct net_device_ops vlan_netdev_ops, vlan_netdev_accel_ops;
694 static int vlan_dev_init(struct net_device *dev)
696 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
699 netif_carrier_off(dev);
701 /* IFF_BROADCAST|IFF_MULTICAST; ??? */
702 dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI);
703 dev->iflink = real_dev->ifindex;
704 dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
705 (1<<__LINK_STATE_DORMANT))) |
706 (1<<__LINK_STATE_PRESENT);
708 dev->features |= real_dev->features & real_dev->vlan_features;
709 dev->gso_max_size = real_dev->gso_max_size;
711 /* ipv6 shared card related stuff */
712 dev->dev_id = real_dev->dev_id;
714 if (is_zero_ether_addr(dev->dev_addr))
715 memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
716 if (is_zero_ether_addr(dev->broadcast))
717 memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
719 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
720 dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
723 if (real_dev->features & NETIF_F_HW_VLAN_TX) {
724 dev->header_ops = real_dev->header_ops;
725 dev->hard_header_len = real_dev->hard_header_len;
726 dev->netdev_ops = &vlan_netdev_accel_ops;
728 dev->header_ops = &vlan_header_ops;
729 dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
730 dev->netdev_ops = &vlan_netdev_ops;
733 if (is_vlan_dev(real_dev))
736 vlan_dev_set_lockdep_class(dev, subclass);
738 vlan_dev_info(dev)->vlan_rx_stats = alloc_percpu(struct vlan_rx_stats);
739 if (!vlan_dev_info(dev)->vlan_rx_stats)
745 static void vlan_dev_uninit(struct net_device *dev)
747 struct vlan_priority_tci_mapping *pm;
748 struct vlan_dev_info *vlan = vlan_dev_info(dev);
751 free_percpu(vlan->vlan_rx_stats);
752 vlan->vlan_rx_stats = NULL;
753 for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
754 while ((pm = vlan->egress_priority_map[i]) != NULL) {
755 vlan->egress_priority_map[i] = pm->next;
761 static int vlan_ethtool_get_settings(struct net_device *dev,
762 struct ethtool_cmd *cmd)
764 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
765 return dev_ethtool_get_settings(vlan->real_dev, cmd);
768 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
769 struct ethtool_drvinfo *info)
771 strcpy(info->driver, vlan_fullname);
772 strcpy(info->version, vlan_version);
773 strcpy(info->fw_version, "N/A");
776 static u32 vlan_ethtool_get_rx_csum(struct net_device *dev)
778 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
779 return dev_ethtool_get_rx_csum(vlan->real_dev);
782 static u32 vlan_ethtool_get_flags(struct net_device *dev)
784 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
785 return dev_ethtool_get_flags(vlan->real_dev);
788 static struct net_device_stats *vlan_dev_get_stats(struct net_device *dev)
790 struct net_device_stats *stats = &dev->stats;
792 dev_txq_stats_fold(dev, stats);
794 if (vlan_dev_info(dev)->vlan_rx_stats) {
795 struct vlan_rx_stats *p, rx = {0};
798 for_each_possible_cpu(i) {
799 p = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats, i);
800 rx.rx_packets += p->rx_packets;
801 rx.rx_bytes += p->rx_bytes;
802 rx.rx_errors += p->rx_errors;
803 rx.multicast += p->multicast;
805 stats->rx_packets = rx.rx_packets;
806 stats->rx_bytes = rx.rx_bytes;
807 stats->rx_errors = rx.rx_errors;
808 stats->multicast = rx.multicast;
813 static const struct ethtool_ops vlan_ethtool_ops = {
814 .get_settings = vlan_ethtool_get_settings,
815 .get_drvinfo = vlan_ethtool_get_drvinfo,
816 .get_link = ethtool_op_get_link,
817 .get_rx_csum = vlan_ethtool_get_rx_csum,
818 .get_flags = vlan_ethtool_get_flags,
821 static const struct net_device_ops vlan_netdev_ops = {
822 .ndo_change_mtu = vlan_dev_change_mtu,
823 .ndo_init = vlan_dev_init,
824 .ndo_uninit = vlan_dev_uninit,
825 .ndo_open = vlan_dev_open,
826 .ndo_stop = vlan_dev_stop,
827 .ndo_start_xmit = vlan_dev_hard_start_xmit,
828 .ndo_validate_addr = eth_validate_addr,
829 .ndo_set_mac_address = vlan_dev_set_mac_address,
830 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
831 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
832 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
833 .ndo_do_ioctl = vlan_dev_ioctl,
834 .ndo_neigh_setup = vlan_dev_neigh_setup,
835 .ndo_get_stats = vlan_dev_get_stats,
836 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
837 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
838 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
839 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
840 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
841 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
845 static const struct net_device_ops vlan_netdev_accel_ops = {
846 .ndo_change_mtu = vlan_dev_change_mtu,
847 .ndo_init = vlan_dev_init,
848 .ndo_uninit = vlan_dev_uninit,
849 .ndo_open = vlan_dev_open,
850 .ndo_stop = vlan_dev_stop,
851 .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit,
852 .ndo_validate_addr = eth_validate_addr,
853 .ndo_set_mac_address = vlan_dev_set_mac_address,
854 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
855 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
856 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
857 .ndo_do_ioctl = vlan_dev_ioctl,
858 .ndo_neigh_setup = vlan_dev_neigh_setup,
859 .ndo_get_stats = vlan_dev_get_stats,
860 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
861 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
862 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
863 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
864 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
865 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
869 void vlan_setup(struct net_device *dev)
873 dev->priv_flags |= IFF_802_1Q_VLAN;
874 dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
875 dev->tx_queue_len = 0;
877 dev->netdev_ops = &vlan_netdev_ops;
878 dev->destructor = free_netdev;
879 dev->ethtool_ops = &vlan_ethtool_ops;
881 memset(dev->broadcast, 0, ETH_ALEN);