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 = 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 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
150 unsigned int max_mtu = real_dev->mtu;
152 if (netif_reduces_vlan_mtu(real_dev))
153 max_mtu -= VLAN_HLEN;
154 if (max_mtu < new_mtu)
162 void vlan_dev_set_ingress_priority(const struct net_device *dev,
163 u32 skb_prio, u16 vlan_prio)
165 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
167 if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
168 vlan->nr_ingress_mappings--;
169 else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
170 vlan->nr_ingress_mappings++;
172 vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
175 int vlan_dev_set_egress_priority(const struct net_device *dev,
176 u32 skb_prio, u16 vlan_prio)
178 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
179 struct vlan_priority_tci_mapping *mp = NULL;
180 struct vlan_priority_tci_mapping *np;
181 u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
183 /* See if a priority mapping exists.. */
184 mp = vlan->egress_priority_map[skb_prio & 0xF];
186 if (mp->priority == skb_prio) {
187 if (mp->vlan_qos && !vlan_qos)
188 vlan->nr_egress_mappings--;
189 else if (!mp->vlan_qos && vlan_qos)
190 vlan->nr_egress_mappings++;
191 mp->vlan_qos = vlan_qos;
197 /* Create a new mapping then. */
198 mp = vlan->egress_priority_map[skb_prio & 0xF];
199 np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
204 np->priority = skb_prio;
205 np->vlan_qos = vlan_qos;
206 /* Before inserting this element in hash table, make sure all its fields
207 * are committed to memory.
208 * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask()
211 vlan->egress_priority_map[skb_prio & 0xF] = np;
213 vlan->nr_egress_mappings++;
217 /* Flags are defined in the vlan_flags enum in
218 * include/uapi/linux/if_vlan.h file.
220 int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
222 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
223 u32 old_flags = vlan->flags;
225 if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
226 VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP))
229 vlan->flags = (old_flags & ~mask) | (flags & mask);
231 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
232 if (vlan->flags & VLAN_FLAG_GVRP)
233 vlan_gvrp_request_join(dev);
235 vlan_gvrp_request_leave(dev);
238 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) {
239 if (vlan->flags & VLAN_FLAG_MVRP)
240 vlan_mvrp_request_join(dev);
242 vlan_mvrp_request_leave(dev);
247 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
249 strncpy(result, vlan_dev_priv(dev)->real_dev->name, 23);
252 bool vlan_dev_inherit_address(struct net_device *dev,
253 struct net_device *real_dev)
255 if (dev->addr_assign_type != NET_ADDR_STOLEN)
258 ether_addr_copy(dev->dev_addr, real_dev->dev_addr);
259 call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
263 static int vlan_dev_open(struct net_device *dev)
265 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
266 struct net_device *real_dev = vlan->real_dev;
269 if (!(real_dev->flags & IFF_UP) &&
270 !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
273 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr) &&
274 !vlan_dev_inherit_address(dev, real_dev)) {
275 err = dev_uc_add(real_dev, dev->dev_addr);
280 if (dev->flags & IFF_ALLMULTI) {
281 err = dev_set_allmulti(real_dev, 1);
285 if (dev->flags & IFF_PROMISC) {
286 err = dev_set_promiscuity(real_dev, 1);
291 ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr);
293 if (vlan->flags & VLAN_FLAG_GVRP)
294 vlan_gvrp_request_join(dev);
296 if (vlan->flags & VLAN_FLAG_MVRP)
297 vlan_mvrp_request_join(dev);
299 if (netif_carrier_ok(real_dev))
300 netif_carrier_on(dev);
304 if (dev->flags & IFF_ALLMULTI)
305 dev_set_allmulti(real_dev, -1);
307 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
308 dev_uc_del(real_dev, dev->dev_addr);
310 netif_carrier_off(dev);
314 static int vlan_dev_stop(struct net_device *dev)
316 struct vlan_dev_priv *vlan = vlan_dev_priv(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 (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
327 dev_uc_del(real_dev, dev->dev_addr);
329 netif_carrier_off(dev);
333 static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
335 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
336 struct sockaddr *addr = p;
339 if (!is_valid_ether_addr(addr->sa_data))
340 return -EADDRNOTAVAIL;
342 if (!(dev->flags & IFF_UP))
345 if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) {
346 err = dev_uc_add(real_dev, addr->sa_data);
351 if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
352 dev_uc_del(real_dev, dev->dev_addr);
355 ether_addr_copy(dev->dev_addr, addr->sa_data);
359 static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
361 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
362 const struct net_device_ops *ops = real_dev->netdev_ops;
364 int err = -EOPNOTSUPP;
366 strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
367 ifrr.ifr_ifru = ifr->ifr_ifru;
375 if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
376 err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
381 ifr->ifr_ifru = ifrr.ifr_ifru;
386 static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
388 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
389 const struct net_device_ops *ops = real_dev->netdev_ops;
392 if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
393 err = ops->ndo_neigh_setup(real_dev, pa);
398 #if IS_ENABLED(CONFIG_FCOE)
399 static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
400 struct scatterlist *sgl, unsigned int sgc)
402 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
403 const struct net_device_ops *ops = real_dev->netdev_ops;
406 if (ops->ndo_fcoe_ddp_setup)
407 rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
412 static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
414 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
415 const struct net_device_ops *ops = real_dev->netdev_ops;
418 if (ops->ndo_fcoe_ddp_done)
419 len = ops->ndo_fcoe_ddp_done(real_dev, xid);
424 static int vlan_dev_fcoe_enable(struct net_device *dev)
426 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
427 const struct net_device_ops *ops = real_dev->netdev_ops;
430 if (ops->ndo_fcoe_enable)
431 rc = ops->ndo_fcoe_enable(real_dev);
435 static int vlan_dev_fcoe_disable(struct net_device *dev)
437 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
438 const struct net_device_ops *ops = real_dev->netdev_ops;
441 if (ops->ndo_fcoe_disable)
442 rc = ops->ndo_fcoe_disable(real_dev);
446 static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid,
447 struct scatterlist *sgl, unsigned int sgc)
449 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
450 const struct net_device_ops *ops = real_dev->netdev_ops;
453 if (ops->ndo_fcoe_ddp_target)
454 rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
460 #ifdef NETDEV_FCOE_WWNN
461 static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
463 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
464 const struct net_device_ops *ops = real_dev->netdev_ops;
467 if (ops->ndo_fcoe_get_wwn)
468 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
473 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
475 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
477 if (dev->flags & IFF_UP) {
478 if (change & IFF_ALLMULTI)
479 dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
480 if (change & IFF_PROMISC)
481 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
485 static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
487 dev_mc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev);
488 dev_uc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev);
492 * vlan network devices have devices nesting below it, and are a special
493 * "super class" of normal network devices; split their locks off into a
494 * separate class since they always nest.
496 static struct lock_class_key vlan_netdev_xmit_lock_key;
497 static struct lock_class_key vlan_netdev_addr_lock_key;
499 static void vlan_dev_set_lockdep_one(struct net_device *dev,
500 struct netdev_queue *txq,
503 lockdep_set_class_and_subclass(&txq->_xmit_lock,
504 &vlan_netdev_xmit_lock_key,
508 static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
510 lockdep_set_class_and_subclass(&dev->addr_list_lock,
511 &vlan_netdev_addr_lock_key,
513 netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
516 static int vlan_dev_get_lock_subclass(struct net_device *dev)
518 return vlan_dev_priv(dev)->nest_level;
521 static const struct header_ops vlan_header_ops = {
522 .create = vlan_dev_hard_header,
523 .parse = eth_header_parse,
526 static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev,
528 const void *daddr, const void *saddr,
531 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
532 struct net_device *real_dev = vlan->real_dev;
535 saddr = dev->dev_addr;
537 return dev_hard_header(skb, real_dev, type, daddr, saddr, len);
540 static const struct header_ops vlan_passthru_header_ops = {
541 .create = vlan_passthru_hard_header,
542 .parse = eth_header_parse,
545 static struct device_type vlan_type = {
549 static const struct net_device_ops vlan_netdev_ops;
551 static int vlan_dev_init(struct net_device *dev)
553 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
555 netif_carrier_off(dev);
557 /* IFF_BROADCAST|IFF_MULTICAST; ??? */
558 dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
559 IFF_MASTER | IFF_SLAVE);
560 dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
561 (1<<__LINK_STATE_DORMANT))) |
562 (1<<__LINK_STATE_PRESENT);
564 dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG |
565 NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE |
566 NETIF_F_GSO_ENCAP_ALL |
567 NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC |
570 dev->features |= dev->hw_features | NETIF_F_LLTX;
571 dev->gso_max_size = real_dev->gso_max_size;
572 dev->gso_max_segs = real_dev->gso_max_segs;
573 if (dev->features & NETIF_F_VLAN_FEATURES)
574 netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n");
576 dev->vlan_features = real_dev->vlan_features & ~NETIF_F_ALL_FCOE;
577 dev->hw_enc_features = vlan_tnl_features(real_dev);
579 /* ipv6 shared card related stuff */
580 dev->dev_id = real_dev->dev_id;
582 if (is_zero_ether_addr(dev->dev_addr)) {
583 ether_addr_copy(dev->dev_addr, real_dev->dev_addr);
584 dev->addr_assign_type = NET_ADDR_STOLEN;
586 if (is_zero_ether_addr(dev->broadcast))
587 memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
589 #if IS_ENABLED(CONFIG_FCOE)
590 dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
593 dev->needed_headroom = real_dev->needed_headroom;
594 if (vlan_hw_offload_capable(real_dev->features,
595 vlan_dev_priv(dev)->vlan_proto)) {
596 dev->header_ops = &vlan_passthru_header_ops;
597 dev->hard_header_len = real_dev->hard_header_len;
599 dev->header_ops = &vlan_header_ops;
600 dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
603 dev->netdev_ops = &vlan_netdev_ops;
605 SET_NETDEV_DEVTYPE(dev, &vlan_type);
607 vlan_dev_set_lockdep_class(dev, vlan_dev_get_lock_subclass(dev));
609 vlan_dev_priv(dev)->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats);
610 if (!vlan_dev_priv(dev)->vlan_pcpu_stats)
616 static void vlan_dev_uninit(struct net_device *dev)
618 struct vlan_priority_tci_mapping *pm;
619 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
622 for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
623 while ((pm = vlan->egress_priority_map[i]) != NULL) {
624 vlan->egress_priority_map[i] = pm->next;
630 static netdev_features_t vlan_dev_fix_features(struct net_device *dev,
631 netdev_features_t features)
633 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
634 netdev_features_t old_features = features;
635 netdev_features_t lower_features;
637 lower_features = netdev_intersect_features((real_dev->vlan_features |
641 /* Add HW_CSUM setting to preserve user ability to control
642 * checksum offload on the vlan device.
644 if (lower_features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))
645 lower_features |= NETIF_F_HW_CSUM;
646 features = netdev_intersect_features(features, lower_features);
647 features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE);
648 features |= NETIF_F_LLTX;
653 static int vlan_ethtool_get_link_ksettings(struct net_device *dev,
654 struct ethtool_link_ksettings *cmd)
656 const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
658 return __ethtool_get_link_ksettings(vlan->real_dev, cmd);
661 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
662 struct ethtool_drvinfo *info)
664 strlcpy(info->driver, vlan_fullname, sizeof(info->driver));
665 strlcpy(info->version, vlan_version, sizeof(info->version));
666 strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
669 static int vlan_ethtool_get_ts_info(struct net_device *dev,
670 struct ethtool_ts_info *info)
672 const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
673 const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops;
674 struct phy_device *phydev = vlan->real_dev->phydev;
676 if (phydev && phydev->drv && phydev->drv->ts_info) {
677 return phydev->drv->ts_info(phydev, info);
678 } else if (ops->get_ts_info) {
679 return ops->get_ts_info(vlan->real_dev, info);
681 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
682 SOF_TIMESTAMPING_SOFTWARE;
683 info->phc_index = -1;
689 static void vlan_dev_get_stats64(struct net_device *dev,
690 struct rtnl_link_stats64 *stats)
692 struct vlan_pcpu_stats *p;
693 u32 rx_errors = 0, tx_dropped = 0;
696 for_each_possible_cpu(i) {
697 u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes;
700 p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i);
702 start = u64_stats_fetch_begin_irq(&p->syncp);
703 rxpackets = p->rx_packets;
704 rxbytes = p->rx_bytes;
705 rxmulticast = p->rx_multicast;
706 txpackets = p->tx_packets;
707 txbytes = p->tx_bytes;
708 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
710 stats->rx_packets += rxpackets;
711 stats->rx_bytes += rxbytes;
712 stats->multicast += rxmulticast;
713 stats->tx_packets += txpackets;
714 stats->tx_bytes += txbytes;
715 /* rx_errors & tx_dropped are u32 */
716 rx_errors += p->rx_errors;
717 tx_dropped += p->tx_dropped;
719 stats->rx_errors = rx_errors;
720 stats->tx_dropped = tx_dropped;
723 #ifdef CONFIG_NET_POLL_CONTROLLER
724 static void vlan_dev_poll_controller(struct net_device *dev)
729 static int vlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo)
731 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
732 struct net_device *real_dev = vlan->real_dev;
733 struct netpoll *netpoll;
736 netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL);
741 err = __netpoll_setup(netpoll, real_dev);
747 vlan->netpoll = netpoll;
753 static void vlan_dev_netpoll_cleanup(struct net_device *dev)
755 struct vlan_dev_priv *vlan= vlan_dev_priv(dev);
756 struct netpoll *netpoll = vlan->netpoll;
761 vlan->netpoll = NULL;
762 __netpoll_free(netpoll);
764 #endif /* CONFIG_NET_POLL_CONTROLLER */
766 static int vlan_dev_get_iflink(const struct net_device *dev)
768 struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
770 return real_dev->ifindex;
773 static const struct ethtool_ops vlan_ethtool_ops = {
774 .get_link_ksettings = vlan_ethtool_get_link_ksettings,
775 .get_drvinfo = vlan_ethtool_get_drvinfo,
776 .get_link = ethtool_op_get_link,
777 .get_ts_info = vlan_ethtool_get_ts_info,
780 static const struct net_device_ops vlan_netdev_ops = {
781 .ndo_change_mtu = vlan_dev_change_mtu,
782 .ndo_init = vlan_dev_init,
783 .ndo_uninit = vlan_dev_uninit,
784 .ndo_open = vlan_dev_open,
785 .ndo_stop = vlan_dev_stop,
786 .ndo_start_xmit = vlan_dev_hard_start_xmit,
787 .ndo_validate_addr = eth_validate_addr,
788 .ndo_set_mac_address = vlan_dev_set_mac_address,
789 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
790 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
791 .ndo_do_ioctl = vlan_dev_ioctl,
792 .ndo_neigh_setup = vlan_dev_neigh_setup,
793 .ndo_get_stats64 = vlan_dev_get_stats64,
794 #if IS_ENABLED(CONFIG_FCOE)
795 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
796 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
797 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
798 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
799 .ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target,
801 #ifdef NETDEV_FCOE_WWNN
802 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
804 #ifdef CONFIG_NET_POLL_CONTROLLER
805 .ndo_poll_controller = vlan_dev_poll_controller,
806 .ndo_netpoll_setup = vlan_dev_netpoll_setup,
807 .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup,
809 .ndo_fix_features = vlan_dev_fix_features,
810 .ndo_get_lock_subclass = vlan_dev_get_lock_subclass,
811 .ndo_get_iflink = vlan_dev_get_iflink,
814 static void vlan_dev_free(struct net_device *dev)
816 struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
818 free_percpu(vlan->vlan_pcpu_stats);
819 vlan->vlan_pcpu_stats = NULL;
822 void vlan_setup(struct net_device *dev)
826 dev->priv_flags |= IFF_802_1Q_VLAN | IFF_NO_QUEUE;
827 dev->priv_flags |= IFF_UNICAST_FLT;
828 dev->priv_flags &= ~IFF_TX_SKB_SHARING;
831 dev->netdev_ops = &vlan_netdev_ops;
832 dev->needs_free_netdev = true;
833 dev->priv_destructor = vlan_dev_free;
834 dev->ethtool_ops = &vlan_ethtool_ops;
837 dev->max_mtu = ETH_MAX_MTU;
839 eth_zero_addr(dev->broadcast);