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/net_tstamp.h>
30 #include <linux/etherdevice.h>
31 #include <linux/ethtool.h>
32 #include <linux/phy.h>
37 #include <linux/if_vlan.h>
38 #include <linux/netpoll.h>
41 * Create the VLAN header for an arbitrary protocol layer
43 * saddr=NULL means use device source address
44 * daddr=NULL means leave destination address (eg unresolved arp)
46 * This is called when the SKB is moving down the stack towards the
49 static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
51 const void *daddr, const void *saddr,
54 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
55 struct vlan_hdr *vhdr;
56 unsigned int vhdrlen = 0;
60 if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) {
61 vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
63 vlan_tci = vlan->vlan_id;
64 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority);
65 vhdr->h_vlan_TCI = htons(vlan_tci);
68 * Set the protocol type. For a packet of type ETH_P_802_3/2 we
69 * put the length in here instead.
71 if (type != ETH_P_802_3 && type != ETH_P_802_2)
72 vhdr->h_vlan_encapsulated_proto = htons(type);
74 vhdr->h_vlan_encapsulated_proto = htons(len);
76 skb->protocol = vlan->vlan_proto;
77 type = ntohs(vlan->vlan_proto);
81 /* Before delegating work to the lower layer, enter our MAC-address */
83 saddr = dev->dev_addr;
85 /* Now make the underlying real hard header */
87 rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen);
93 static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb)
95 #ifdef CONFIG_NET_POLL_CONTROLLER
97 netpoll_send_skb(vlan->netpoll, skb);
104 static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
105 struct net_device *dev)
107 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
108 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
112 /* Handle non-VLAN frames if they are sent to us, for example by DHCP.
114 * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
115 * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
117 if (veth->h_vlan_proto != vlan->vlan_proto ||
118 vlan->flags & VLAN_FLAG_REORDER_HDR) {
120 vlan_tci = vlan->vlan_id;
121 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority);
122 __vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci);
125 skb->dev = vlan->real_dev;
127 if (unlikely(netpoll_tx_running(dev)))
128 return vlan_netpoll_send_skb(vlan, skb);
130 ret = dev_queue_xmit(skb);
132 if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
133 struct vlan_pcpu_stats *stats;
135 stats = this_cpu_ptr(vlan->vlan_pcpu_stats);
136 u64_stats_update_begin(&stats->syncp);
138 stats->tx_bytes += len;
139 u64_stats_update_end(&stats->syncp);
141 this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped);
147 static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
149 /* TODO: gotta make sure the underlying layer can handle it,
150 * maybe an IFF_VLAN_CAPABLE flag for devices?
152 if (vlan_dev_priv(dev)->real_dev->mtu < new_mtu)
160 void vlan_dev_set_ingress_priority(const struct net_device *dev,
161 u32 skb_prio, u16 vlan_prio)
163 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
165 if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
166 vlan->nr_ingress_mappings--;
167 else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
168 vlan->nr_ingress_mappings++;
170 vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
173 int vlan_dev_set_egress_priority(const struct net_device *dev,
174 u32 skb_prio, u16 vlan_prio)
176 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
177 struct vlan_priority_tci_mapping *mp = NULL;
178 struct vlan_priority_tci_mapping *np;
179 u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
181 /* See if a priority mapping exists.. */
182 mp = vlan->egress_priority_map[skb_prio & 0xF];
184 if (mp->priority == skb_prio) {
185 if (mp->vlan_qos && !vlan_qos)
186 vlan->nr_egress_mappings--;
187 else if (!mp->vlan_qos && vlan_qos)
188 vlan->nr_egress_mappings++;
189 mp->vlan_qos = vlan_qos;
195 /* Create a new mapping then. */
196 mp = vlan->egress_priority_map[skb_prio & 0xF];
197 np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
202 np->priority = skb_prio;
203 np->vlan_qos = vlan_qos;
204 /* Before inserting this element in hash table, make sure all its fields
205 * are committed to memory.
206 * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask()
209 vlan->egress_priority_map[skb_prio & 0xF] = np;
211 vlan->nr_egress_mappings++;
215 /* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
216 int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
218 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
219 u32 old_flags = vlan->flags;
221 if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
222 VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP))
225 vlan->flags = (old_flags & ~mask) | (flags & mask);
227 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
228 if (vlan->flags & VLAN_FLAG_GVRP)
229 vlan_gvrp_request_join(dev);
231 vlan_gvrp_request_leave(dev);
234 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) {
235 if (vlan->flags & VLAN_FLAG_MVRP)
236 vlan_mvrp_request_join(dev);
238 vlan_mvrp_request_leave(dev);
243 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
245 strncpy(result, vlan_dev_priv(dev)->real_dev->name, 23);
248 bool vlan_dev_inherit_address(struct net_device *dev,
249 struct net_device *real_dev)
251 if (dev->addr_assign_type != NET_ADDR_STOLEN)
254 ether_addr_copy(dev->dev_addr, real_dev->dev_addr);
255 call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
259 static int vlan_dev_open(struct net_device *dev)
261 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
262 struct net_device *real_dev = vlan->real_dev;
265 if (!(real_dev->flags & IFF_UP) &&
266 !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
269 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr) &&
270 !vlan_dev_inherit_address(dev, real_dev)) {
271 err = dev_uc_add(real_dev, dev->dev_addr);
276 if (dev->flags & IFF_ALLMULTI) {
277 err = dev_set_allmulti(real_dev, 1);
281 if (dev->flags & IFF_PROMISC) {
282 err = dev_set_promiscuity(real_dev, 1);
287 ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr);
289 if (vlan->flags & VLAN_FLAG_GVRP)
290 vlan_gvrp_request_join(dev);
292 if (vlan->flags & VLAN_FLAG_MVRP)
293 vlan_mvrp_request_join(dev);
295 if (netif_carrier_ok(real_dev))
296 netif_carrier_on(dev);
300 if (dev->flags & IFF_ALLMULTI)
301 dev_set_allmulti(real_dev, -1);
303 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
304 dev_uc_del(real_dev, dev->dev_addr);
306 netif_carrier_off(dev);
310 static int vlan_dev_stop(struct net_device *dev)
312 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
313 struct net_device *real_dev = vlan->real_dev;
315 dev_mc_unsync(real_dev, dev);
316 dev_uc_unsync(real_dev, dev);
317 if (dev->flags & IFF_ALLMULTI)
318 dev_set_allmulti(real_dev, -1);
319 if (dev->flags & IFF_PROMISC)
320 dev_set_promiscuity(real_dev, -1);
322 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
323 dev_uc_del(real_dev, dev->dev_addr);
325 netif_carrier_off(dev);
329 static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
331 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
332 struct sockaddr *addr = p;
335 if (!is_valid_ether_addr(addr->sa_data))
336 return -EADDRNOTAVAIL;
338 if (!(dev->flags & IFF_UP))
341 if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) {
342 err = dev_uc_add(real_dev, addr->sa_data);
347 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
348 dev_uc_del(real_dev, dev->dev_addr);
351 ether_addr_copy(dev->dev_addr, addr->sa_data);
355 static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
357 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
358 const struct net_device_ops *ops = real_dev->netdev_ops;
360 int err = -EOPNOTSUPP;
362 strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
363 ifrr.ifr_ifru = ifr->ifr_ifru;
367 if (!net_eq(dev_net(dev), &init_net))
373 if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
374 err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
379 ifr->ifr_ifru = ifrr.ifr_ifru;
384 static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
386 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
387 const struct net_device_ops *ops = real_dev->netdev_ops;
390 if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
391 err = ops->ndo_neigh_setup(real_dev, pa);
396 #if IS_ENABLED(CONFIG_FCOE)
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_priv(dev)->real_dev;
401 const struct net_device_ops *ops = real_dev->netdev_ops;
404 if (ops->ndo_fcoe_ddp_setup)
405 rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
410 static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
412 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
413 const struct net_device_ops *ops = real_dev->netdev_ops;
416 if (ops->ndo_fcoe_ddp_done)
417 len = ops->ndo_fcoe_ddp_done(real_dev, xid);
422 static int vlan_dev_fcoe_enable(struct net_device *dev)
424 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
425 const struct net_device_ops *ops = real_dev->netdev_ops;
428 if (ops->ndo_fcoe_enable)
429 rc = ops->ndo_fcoe_enable(real_dev);
433 static int vlan_dev_fcoe_disable(struct net_device *dev)
435 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
436 const struct net_device_ops *ops = real_dev->netdev_ops;
439 if (ops->ndo_fcoe_disable)
440 rc = ops->ndo_fcoe_disable(real_dev);
444 static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
446 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
447 const struct net_device_ops *ops = real_dev->netdev_ops;
450 if (ops->ndo_fcoe_get_wwn)
451 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
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_priv(dev)->real_dev;
459 const struct net_device_ops *ops = real_dev->netdev_ops;
462 if (ops->ndo_fcoe_ddp_target)
463 rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
469 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
471 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
473 if (dev->flags & IFF_UP) {
474 if (change & IFF_ALLMULTI)
475 dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
476 if (change & IFF_PROMISC)
477 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
481 static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
483 dev_mc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev);
484 dev_uc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev);
488 * vlan network devices have devices nesting below it, and are a special
489 * "super class" of normal network devices; split their locks off into a
490 * separate class since they always nest.
492 static struct lock_class_key vlan_netdev_xmit_lock_key;
493 static struct lock_class_key vlan_netdev_addr_lock_key;
495 static void vlan_dev_set_lockdep_one(struct net_device *dev,
496 struct netdev_queue *txq,
499 lockdep_set_class_and_subclass(&txq->_xmit_lock,
500 &vlan_netdev_xmit_lock_key,
504 static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
506 lockdep_set_class_and_subclass(&dev->addr_list_lock,
507 &vlan_netdev_addr_lock_key,
509 netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
512 static int vlan_dev_get_lock_subclass(struct net_device *dev)
514 return vlan_dev_priv(dev)->nest_level;
517 static const struct header_ops vlan_header_ops = {
518 .create = vlan_dev_hard_header,
519 .parse = eth_header_parse,
522 static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev,
524 const void *daddr, const void *saddr,
527 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
528 struct net_device *real_dev = vlan->real_dev;
531 saddr = dev->dev_addr;
533 return dev_hard_header(skb, real_dev, type, daddr, saddr, len);
536 static const struct header_ops vlan_passthru_header_ops = {
537 .create = vlan_passthru_hard_header,
538 .parse = eth_header_parse,
541 static struct device_type vlan_type = {
545 static const struct net_device_ops vlan_netdev_ops;
547 static int vlan_dev_init(struct net_device *dev)
549 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
551 netif_carrier_off(dev);
553 /* IFF_BROADCAST|IFF_MULTICAST; ??? */
554 dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
555 IFF_MASTER | IFF_SLAVE);
556 dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
557 (1<<__LINK_STATE_DORMANT))) |
558 (1<<__LINK_STATE_PRESENT);
560 dev->hw_features = NETIF_F_ALL_CSUM | NETIF_F_SG |
561 NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE |
562 NETIF_F_HIGHDMA | NETIF_F_SCTP_CSUM |
565 dev->features |= dev->hw_features | NETIF_F_LLTX;
566 dev->gso_max_size = real_dev->gso_max_size;
567 if (dev->features & NETIF_F_VLAN_FEATURES)
568 netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n");
570 dev->vlan_features = real_dev->vlan_features & ~NETIF_F_ALL_FCOE;
572 /* ipv6 shared card related stuff */
573 dev->dev_id = real_dev->dev_id;
575 if (is_zero_ether_addr(dev->dev_addr)) {
576 ether_addr_copy(dev->dev_addr, real_dev->dev_addr);
577 dev->addr_assign_type = NET_ADDR_STOLEN;
579 if (is_zero_ether_addr(dev->broadcast))
580 memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
582 #if IS_ENABLED(CONFIG_FCOE)
583 dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
586 dev->needed_headroom = real_dev->needed_headroom;
587 if (vlan_hw_offload_capable(real_dev->features,
588 vlan_dev_priv(dev)->vlan_proto)) {
589 dev->header_ops = &vlan_passthru_header_ops;
590 dev->hard_header_len = real_dev->hard_header_len;
592 dev->header_ops = &vlan_header_ops;
593 dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
596 dev->netdev_ops = &vlan_netdev_ops;
598 SET_NETDEV_DEVTYPE(dev, &vlan_type);
600 vlan_dev_set_lockdep_class(dev, vlan_dev_get_lock_subclass(dev));
602 vlan_dev_priv(dev)->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats);
603 if (!vlan_dev_priv(dev)->vlan_pcpu_stats)
609 /* Note: this function might be called multiple times for the same device. */
610 void vlan_dev_uninit(struct net_device *dev)
612 struct vlan_priority_tci_mapping *pm;
613 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
616 for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
617 while ((pm = vlan->egress_priority_map[i]) != NULL) {
618 vlan->egress_priority_map[i] = pm->next;
624 static netdev_features_t vlan_dev_fix_features(struct net_device *dev,
625 netdev_features_t features)
627 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
628 netdev_features_t old_features = features;
630 features = netdev_intersect_features(features, real_dev->vlan_features);
631 features |= NETIF_F_RXCSUM;
632 features = netdev_intersect_features(features, real_dev->features);
634 features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE);
635 features |= NETIF_F_LLTX;
640 static int vlan_ethtool_get_settings(struct net_device *dev,
641 struct ethtool_cmd *cmd)
643 const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
645 return __ethtool_get_settings(vlan->real_dev, cmd);
648 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
649 struct ethtool_drvinfo *info)
651 strlcpy(info->driver, vlan_fullname, sizeof(info->driver));
652 strlcpy(info->version, vlan_version, sizeof(info->version));
653 strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
656 static int vlan_ethtool_get_ts_info(struct net_device *dev,
657 struct ethtool_ts_info *info)
659 const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
660 const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops;
661 struct phy_device *phydev = vlan->real_dev->phydev;
663 if (phydev && phydev->drv && phydev->drv->ts_info) {
664 return phydev->drv->ts_info(phydev, info);
665 } else if (ops->get_ts_info) {
666 return ops->get_ts_info(vlan->real_dev, info);
668 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
669 SOF_TIMESTAMPING_SOFTWARE;
670 info->phc_index = -1;
676 static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
678 struct vlan_pcpu_stats *p;
679 u32 rx_errors = 0, tx_dropped = 0;
682 for_each_possible_cpu(i) {
683 u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes;
686 p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i);
688 start = u64_stats_fetch_begin_irq(&p->syncp);
689 rxpackets = p->rx_packets;
690 rxbytes = p->rx_bytes;
691 rxmulticast = p->rx_multicast;
692 txpackets = p->tx_packets;
693 txbytes = p->tx_bytes;
694 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
696 stats->rx_packets += rxpackets;
697 stats->rx_bytes += rxbytes;
698 stats->multicast += rxmulticast;
699 stats->tx_packets += txpackets;
700 stats->tx_bytes += txbytes;
701 /* rx_errors & tx_dropped are u32 */
702 rx_errors += p->rx_errors;
703 tx_dropped += p->tx_dropped;
705 stats->rx_errors = rx_errors;
706 stats->tx_dropped = tx_dropped;
711 #ifdef CONFIG_NET_POLL_CONTROLLER
712 static void vlan_dev_poll_controller(struct net_device *dev)
717 static int vlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo)
719 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
720 struct net_device *real_dev = vlan->real_dev;
721 struct netpoll *netpoll;
724 netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL);
729 err = __netpoll_setup(netpoll, real_dev);
735 vlan->netpoll = netpoll;
741 static void vlan_dev_netpoll_cleanup(struct net_device *dev)
743 struct vlan_dev_priv *vlan= vlan_dev_priv(dev);
744 struct netpoll *netpoll = vlan->netpoll;
749 vlan->netpoll = NULL;
751 __netpoll_free_async(netpoll);
753 #endif /* CONFIG_NET_POLL_CONTROLLER */
755 static int vlan_dev_get_iflink(const struct net_device *dev)
757 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
759 return real_dev->ifindex;
762 static const struct ethtool_ops vlan_ethtool_ops = {
763 .get_settings = vlan_ethtool_get_settings,
764 .get_drvinfo = vlan_ethtool_get_drvinfo,
765 .get_link = ethtool_op_get_link,
766 .get_ts_info = vlan_ethtool_get_ts_info,
769 static const struct net_device_ops vlan_netdev_ops = {
770 .ndo_change_mtu = vlan_dev_change_mtu,
771 .ndo_init = vlan_dev_init,
772 .ndo_uninit = vlan_dev_uninit,
773 .ndo_open = vlan_dev_open,
774 .ndo_stop = vlan_dev_stop,
775 .ndo_start_xmit = vlan_dev_hard_start_xmit,
776 .ndo_validate_addr = eth_validate_addr,
777 .ndo_set_mac_address = vlan_dev_set_mac_address,
778 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
779 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
780 .ndo_do_ioctl = vlan_dev_ioctl,
781 .ndo_neigh_setup = vlan_dev_neigh_setup,
782 .ndo_get_stats64 = vlan_dev_get_stats64,
783 #if IS_ENABLED(CONFIG_FCOE)
784 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
785 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
786 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
787 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
788 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
789 .ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target,
791 #ifdef CONFIG_NET_POLL_CONTROLLER
792 .ndo_poll_controller = vlan_dev_poll_controller,
793 .ndo_netpoll_setup = vlan_dev_netpoll_setup,
794 .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup,
796 .ndo_fix_features = vlan_dev_fix_features,
797 .ndo_get_lock_subclass = vlan_dev_get_lock_subclass,
798 .ndo_get_iflink = vlan_dev_get_iflink,
801 static void vlan_dev_free(struct net_device *dev)
803 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
805 free_percpu(vlan->vlan_pcpu_stats);
806 vlan->vlan_pcpu_stats = NULL;
810 void vlan_setup(struct net_device *dev)
814 dev->priv_flags |= IFF_802_1Q_VLAN | IFF_NO_QUEUE;
815 dev->priv_flags &= ~IFF_TX_SKB_SHARING;
818 dev->netdev_ops = &vlan_netdev_ops;
819 dev->destructor = vlan_dev_free;
820 dev->ethtool_ops = &vlan_ethtool_ops;
822 eth_zero_addr(dev->broadcast);