nfsd4: typo logical vs bitwise negate for want_mask
[linux-btrfs-devel.git] / net / 8021q / vlan_dev.c
blob9d40a071d0382e7e893483066fa3bb5285fa8bc0
1 /* -*- linux-c -*-
2 * INET 802.1Q VLAN
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25 #include <linux/module.h>
26 #include <linux/slab.h>
27 #include <linux/skbuff.h>
28 #include <linux/netdevice.h>
29 #include <linux/etherdevice.h>
30 #include <linux/ethtool.h>
31 #include <net/arp.h>
33 #include "vlan.h"
34 #include "vlanproc.h"
35 #include <linux/if_vlan.h>
38 * Rebuild the Ethernet MAC header. This is called after an ARP
39 * (or in future other address resolution) has completed on this
40 * sk_buff. We now let ARP fill in the other fields.
42 * This routine CANNOT use cached dst->neigh!
43 * Really, it is used only when dst->neigh is wrong.
45 * TODO: This needs a checkup, I'm ignorant here. --BLG
47 static int vlan_dev_rebuild_header(struct sk_buff *skb)
49 struct net_device *dev = skb->dev;
50 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
52 switch (veth->h_vlan_encapsulated_proto) {
53 #ifdef CONFIG_INET
54 case htons(ETH_P_IP):
56 /* TODO: Confirm this will work with VLAN headers... */
57 return arp_find(veth->h_dest, skb);
58 #endif
59 default:
60 pr_debug("%s: unable to resolve type %X addresses\n",
61 dev->name, ntohs(veth->h_vlan_encapsulated_proto));
63 memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
64 break;
67 return 0;
70 static inline u16
71 vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
73 struct vlan_priority_tci_mapping *mp;
75 mp = vlan_dev_info(dev)->egress_priority_map[(skb->priority & 0xF)];
76 while (mp) {
77 if (mp->priority == skb->priority) {
78 return mp->vlan_qos; /* This should already be shifted
79 * to mask correctly with the
80 * VLAN's TCI */
82 mp = mp->next;
84 return 0;
88 * Create the VLAN header for an arbitrary protocol layer
90 * saddr=NULL means use device source address
91 * daddr=NULL means leave destination address (eg unresolved arp)
93 * This is called when the SKB is moving down the stack towards the
94 * physical devices.
96 static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
97 unsigned short type,
98 const void *daddr, const void *saddr,
99 unsigned int len)
101 struct vlan_hdr *vhdr;
102 unsigned int vhdrlen = 0;
103 u16 vlan_tci = 0;
104 int rc;
106 if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) {
107 vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
109 vlan_tci = vlan_dev_info(dev)->vlan_id;
110 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
111 vhdr->h_vlan_TCI = htons(vlan_tci);
114 * Set the protocol type. For a packet of type ETH_P_802_3/2 we
115 * put the length in here instead.
117 if (type != ETH_P_802_3 && type != ETH_P_802_2)
118 vhdr->h_vlan_encapsulated_proto = htons(type);
119 else
120 vhdr->h_vlan_encapsulated_proto = htons(len);
122 skb->protocol = htons(ETH_P_8021Q);
123 type = ETH_P_8021Q;
124 vhdrlen = VLAN_HLEN;
127 /* Before delegating work to the lower layer, enter our MAC-address */
128 if (saddr == NULL)
129 saddr = dev->dev_addr;
131 /* Now make the underlying real hard header */
132 dev = vlan_dev_info(dev)->real_dev;
133 rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen);
134 if (rc > 0)
135 rc += vhdrlen;
136 return rc;
139 static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
140 struct net_device *dev)
142 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
143 unsigned int len;
144 int ret;
146 /* Handle non-VLAN frames if they are sent to us, for example by DHCP.
148 * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
149 * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
151 if (veth->h_vlan_proto != htons(ETH_P_8021Q) ||
152 vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR) {
153 u16 vlan_tci;
154 vlan_tci = vlan_dev_info(dev)->vlan_id;
155 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
156 skb = __vlan_hwaccel_put_tag(skb, vlan_tci);
159 skb_set_dev(skb, vlan_dev_info(dev)->real_dev);
160 len = skb->len;
161 ret = dev_queue_xmit(skb);
163 if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
164 struct vlan_pcpu_stats *stats;
166 stats = this_cpu_ptr(vlan_dev_info(dev)->vlan_pcpu_stats);
167 u64_stats_update_begin(&stats->syncp);
168 stats->tx_packets++;
169 stats->tx_bytes += len;
170 u64_stats_update_end(&stats->syncp);
171 } else {
172 this_cpu_inc(vlan_dev_info(dev)->vlan_pcpu_stats->tx_dropped);
175 return ret;
178 static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
180 /* TODO: gotta make sure the underlying layer can handle it,
181 * maybe an IFF_VLAN_CAPABLE flag for devices?
183 if (vlan_dev_info(dev)->real_dev->mtu < new_mtu)
184 return -ERANGE;
186 dev->mtu = new_mtu;
188 return 0;
191 void vlan_dev_set_ingress_priority(const struct net_device *dev,
192 u32 skb_prio, u16 vlan_prio)
194 struct vlan_dev_info *vlan = vlan_dev_info(dev);
196 if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
197 vlan->nr_ingress_mappings--;
198 else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
199 vlan->nr_ingress_mappings++;
201 vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
204 int vlan_dev_set_egress_priority(const struct net_device *dev,
205 u32 skb_prio, u16 vlan_prio)
207 struct vlan_dev_info *vlan = vlan_dev_info(dev);
208 struct vlan_priority_tci_mapping *mp = NULL;
209 struct vlan_priority_tci_mapping *np;
210 u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
212 /* See if a priority mapping exists.. */
213 mp = vlan->egress_priority_map[skb_prio & 0xF];
214 while (mp) {
215 if (mp->priority == skb_prio) {
216 if (mp->vlan_qos && !vlan_qos)
217 vlan->nr_egress_mappings--;
218 else if (!mp->vlan_qos && vlan_qos)
219 vlan->nr_egress_mappings++;
220 mp->vlan_qos = vlan_qos;
221 return 0;
223 mp = mp->next;
226 /* Create a new mapping then. */
227 mp = vlan->egress_priority_map[skb_prio & 0xF];
228 np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
229 if (!np)
230 return -ENOBUFS;
232 np->next = mp;
233 np->priority = skb_prio;
234 np->vlan_qos = vlan_qos;
235 vlan->egress_priority_map[skb_prio & 0xF] = np;
236 if (vlan_qos)
237 vlan->nr_egress_mappings++;
238 return 0;
241 /* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
242 int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
244 struct vlan_dev_info *vlan = vlan_dev_info(dev);
245 u32 old_flags = vlan->flags;
247 if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
248 VLAN_FLAG_LOOSE_BINDING))
249 return -EINVAL;
251 vlan->flags = (old_flags & ~mask) | (flags & mask);
253 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
254 if (vlan->flags & VLAN_FLAG_GVRP)
255 vlan_gvrp_request_join(dev);
256 else
257 vlan_gvrp_request_leave(dev);
259 return 0;
262 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
264 strncpy(result, vlan_dev_info(dev)->real_dev->name, 23);
267 static int vlan_dev_open(struct net_device *dev)
269 struct vlan_dev_info *vlan = vlan_dev_info(dev);
270 struct net_device *real_dev = vlan->real_dev;
271 int err;
273 if (!(real_dev->flags & IFF_UP) &&
274 !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
275 return -ENETDOWN;
277 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
278 err = dev_uc_add(real_dev, dev->dev_addr);
279 if (err < 0)
280 goto out;
283 if (dev->flags & IFF_ALLMULTI) {
284 err = dev_set_allmulti(real_dev, 1);
285 if (err < 0)
286 goto del_unicast;
288 if (dev->flags & IFF_PROMISC) {
289 err = dev_set_promiscuity(real_dev, 1);
290 if (err < 0)
291 goto clear_allmulti;
294 memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);
296 if (vlan->flags & VLAN_FLAG_GVRP)
297 vlan_gvrp_request_join(dev);
299 if (netif_carrier_ok(real_dev))
300 netif_carrier_on(dev);
301 return 0;
303 clear_allmulti:
304 if (dev->flags & IFF_ALLMULTI)
305 dev_set_allmulti(real_dev, -1);
306 del_unicast:
307 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
308 dev_uc_del(real_dev, dev->dev_addr);
309 out:
310 netif_carrier_off(dev);
311 return err;
314 static int vlan_dev_stop(struct net_device *dev)
316 struct vlan_dev_info *vlan = vlan_dev_info(dev);
317 struct net_device *real_dev = vlan->real_dev;
319 dev_mc_unsync(real_dev, dev);
320 dev_uc_unsync(real_dev, dev);
321 if (dev->flags & IFF_ALLMULTI)
322 dev_set_allmulti(real_dev, -1);
323 if (dev->flags & IFF_PROMISC)
324 dev_set_promiscuity(real_dev, -1);
326 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
327 dev_uc_del(real_dev, dev->dev_addr);
329 netif_carrier_off(dev);
330 return 0;
333 static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
335 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
336 struct sockaddr *addr = p;
337 int err;
339 if (!is_valid_ether_addr(addr->sa_data))
340 return -EADDRNOTAVAIL;
342 if (!(dev->flags & IFF_UP))
343 goto out;
345 if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
346 err = dev_uc_add(real_dev, addr->sa_data);
347 if (err < 0)
348 return err;
351 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
352 dev_uc_del(real_dev, dev->dev_addr);
354 out:
355 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
356 return 0;
359 static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
361 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
362 const struct net_device_ops *ops = real_dev->netdev_ops;
363 struct ifreq ifrr;
364 int err = -EOPNOTSUPP;
366 strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
367 ifrr.ifr_ifru = ifr->ifr_ifru;
369 switch (cmd) {
370 case SIOCGMIIPHY:
371 case SIOCGMIIREG:
372 case SIOCSMIIREG:
373 if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
374 err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
375 break;
378 if (!err)
379 ifr->ifr_ifru = ifrr.ifr_ifru;
381 return err;
384 static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
386 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
387 const struct net_device_ops *ops = real_dev->netdev_ops;
388 int err = 0;
390 if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
391 err = ops->ndo_neigh_setup(real_dev, pa);
393 return err;
396 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
397 static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
398 struct scatterlist *sgl, unsigned int sgc)
400 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
401 const struct net_device_ops *ops = real_dev->netdev_ops;
402 int rc = 0;
404 if (ops->ndo_fcoe_ddp_setup)
405 rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
407 return rc;
410 static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
412 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
413 const struct net_device_ops *ops = real_dev->netdev_ops;
414 int len = 0;
416 if (ops->ndo_fcoe_ddp_done)
417 len = ops->ndo_fcoe_ddp_done(real_dev, xid);
419 return len;
422 static int vlan_dev_fcoe_enable(struct net_device *dev)
424 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
425 const struct net_device_ops *ops = real_dev->netdev_ops;
426 int rc = -EINVAL;
428 if (ops->ndo_fcoe_enable)
429 rc = ops->ndo_fcoe_enable(real_dev);
430 return rc;
433 static int vlan_dev_fcoe_disable(struct net_device *dev)
435 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
436 const struct net_device_ops *ops = real_dev->netdev_ops;
437 int rc = -EINVAL;
439 if (ops->ndo_fcoe_disable)
440 rc = ops->ndo_fcoe_disable(real_dev);
441 return rc;
444 static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
446 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
447 const struct net_device_ops *ops = real_dev->netdev_ops;
448 int rc = -EINVAL;
450 if (ops->ndo_fcoe_get_wwn)
451 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
452 return rc;
455 static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid,
456 struct scatterlist *sgl, unsigned int sgc)
458 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
459 const struct net_device_ops *ops = real_dev->netdev_ops;
460 int rc = 0;
462 if (ops->ndo_fcoe_ddp_target)
463 rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
465 return rc;
467 #endif
469 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
471 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
473 if (change & IFF_ALLMULTI)
474 dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
475 if (change & IFF_PROMISC)
476 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
479 static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
481 dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
482 dev_uc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
486 * vlan network devices have devices nesting below it, and are a special
487 * "super class" of normal network devices; split their locks off into a
488 * separate class since they always nest.
490 static struct lock_class_key vlan_netdev_xmit_lock_key;
491 static struct lock_class_key vlan_netdev_addr_lock_key;
493 static void vlan_dev_set_lockdep_one(struct net_device *dev,
494 struct netdev_queue *txq,
495 void *_subclass)
497 lockdep_set_class_and_subclass(&txq->_xmit_lock,
498 &vlan_netdev_xmit_lock_key,
499 *(int *)_subclass);
502 static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
504 lockdep_set_class_and_subclass(&dev->addr_list_lock,
505 &vlan_netdev_addr_lock_key,
506 subclass);
507 netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
510 static const struct header_ops vlan_header_ops = {
511 .create = vlan_dev_hard_header,
512 .rebuild = vlan_dev_rebuild_header,
513 .parse = eth_header_parse,
516 static const struct net_device_ops vlan_netdev_ops;
518 static int vlan_dev_init(struct net_device *dev)
520 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
521 int subclass = 0;
523 netif_carrier_off(dev);
525 /* IFF_BROADCAST|IFF_MULTICAST; ??? */
526 dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
527 IFF_MASTER | IFF_SLAVE);
528 dev->iflink = real_dev->ifindex;
529 dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
530 (1<<__LINK_STATE_DORMANT))) |
531 (1<<__LINK_STATE_PRESENT);
533 dev->hw_features = NETIF_F_ALL_CSUM | NETIF_F_SG |
534 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO |
535 NETIF_F_HIGHDMA | NETIF_F_SCTP_CSUM |
536 NETIF_F_ALL_FCOE;
538 dev->features |= real_dev->vlan_features | NETIF_F_LLTX;
539 dev->gso_max_size = real_dev->gso_max_size;
541 /* ipv6 shared card related stuff */
542 dev->dev_id = real_dev->dev_id;
544 if (is_zero_ether_addr(dev->dev_addr))
545 memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
546 if (is_zero_ether_addr(dev->broadcast))
547 memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
549 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
550 dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
551 #endif
553 dev->needed_headroom = real_dev->needed_headroom;
554 if (real_dev->features & NETIF_F_HW_VLAN_TX) {
555 dev->header_ops = real_dev->header_ops;
556 dev->hard_header_len = real_dev->hard_header_len;
557 } else {
558 dev->header_ops = &vlan_header_ops;
559 dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
562 dev->netdev_ops = &vlan_netdev_ops;
564 if (is_vlan_dev(real_dev))
565 subclass = 1;
567 vlan_dev_set_lockdep_class(dev, subclass);
569 vlan_dev_info(dev)->vlan_pcpu_stats = alloc_percpu(struct vlan_pcpu_stats);
570 if (!vlan_dev_info(dev)->vlan_pcpu_stats)
571 return -ENOMEM;
573 return 0;
576 static void vlan_dev_uninit(struct net_device *dev)
578 struct vlan_priority_tci_mapping *pm;
579 struct vlan_dev_info *vlan = vlan_dev_info(dev);
580 int i;
582 free_percpu(vlan->vlan_pcpu_stats);
583 vlan->vlan_pcpu_stats = NULL;
584 for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
585 while ((pm = vlan->egress_priority_map[i]) != NULL) {
586 vlan->egress_priority_map[i] = pm->next;
587 kfree(pm);
592 static u32 vlan_dev_fix_features(struct net_device *dev, u32 features)
594 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
595 u32 old_features = features;
597 features &= real_dev->features;
598 features &= real_dev->vlan_features;
600 features |= old_features & NETIF_F_SOFT_FEATURES;
602 if (dev_ethtool_get_rx_csum(real_dev))
603 features |= NETIF_F_RXCSUM;
604 features |= NETIF_F_LLTX;
606 return features;
609 static int vlan_ethtool_get_settings(struct net_device *dev,
610 struct ethtool_cmd *cmd)
612 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
613 return dev_ethtool_get_settings(vlan->real_dev, cmd);
616 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
617 struct ethtool_drvinfo *info)
619 strcpy(info->driver, vlan_fullname);
620 strcpy(info->version, vlan_version);
621 strcpy(info->fw_version, "N/A");
624 static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
627 if (vlan_dev_info(dev)->vlan_pcpu_stats) {
628 struct vlan_pcpu_stats *p;
629 u32 rx_errors = 0, tx_dropped = 0;
630 int i;
632 for_each_possible_cpu(i) {
633 u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes;
634 unsigned int start;
636 p = per_cpu_ptr(vlan_dev_info(dev)->vlan_pcpu_stats, i);
637 do {
638 start = u64_stats_fetch_begin_bh(&p->syncp);
639 rxpackets = p->rx_packets;
640 rxbytes = p->rx_bytes;
641 rxmulticast = p->rx_multicast;
642 txpackets = p->tx_packets;
643 txbytes = p->tx_bytes;
644 } while (u64_stats_fetch_retry_bh(&p->syncp, start));
646 stats->rx_packets += rxpackets;
647 stats->rx_bytes += rxbytes;
648 stats->multicast += rxmulticast;
649 stats->tx_packets += txpackets;
650 stats->tx_bytes += txbytes;
651 /* rx_errors & tx_dropped are u32 */
652 rx_errors += p->rx_errors;
653 tx_dropped += p->tx_dropped;
655 stats->rx_errors = rx_errors;
656 stats->tx_dropped = tx_dropped;
658 return stats;
661 static const struct ethtool_ops vlan_ethtool_ops = {
662 .get_settings = vlan_ethtool_get_settings,
663 .get_drvinfo = vlan_ethtool_get_drvinfo,
664 .get_link = ethtool_op_get_link,
667 static const struct net_device_ops vlan_netdev_ops = {
668 .ndo_change_mtu = vlan_dev_change_mtu,
669 .ndo_init = vlan_dev_init,
670 .ndo_uninit = vlan_dev_uninit,
671 .ndo_open = vlan_dev_open,
672 .ndo_stop = vlan_dev_stop,
673 .ndo_start_xmit = vlan_dev_hard_start_xmit,
674 .ndo_validate_addr = eth_validate_addr,
675 .ndo_set_mac_address = vlan_dev_set_mac_address,
676 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
677 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
678 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
679 .ndo_do_ioctl = vlan_dev_ioctl,
680 .ndo_neigh_setup = vlan_dev_neigh_setup,
681 .ndo_get_stats64 = vlan_dev_get_stats64,
682 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
683 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
684 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
685 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
686 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
687 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
688 .ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target,
689 #endif
690 .ndo_fix_features = vlan_dev_fix_features,
693 void vlan_setup(struct net_device *dev)
695 ether_setup(dev);
697 dev->priv_flags |= IFF_802_1Q_VLAN;
698 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
699 dev->tx_queue_len = 0;
701 dev->netdev_ops = &vlan_netdev_ops;
702 dev->destructor = free_netdev;
703 dev->ethtool_ops = &vlan_ethtool_ops;
705 memset(dev->broadcast, 0, ETH_ALEN);