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/slab.h>
25 #include <linux/skbuff.h>
26 #include <linux/netdevice.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ethtool.h>
33 #include <linux/if_vlan.h>
36 * Rebuild the Ethernet MAC header. This is called after an ARP
37 * (or in future other address resolution) has completed on this
38 * sk_buff. We now let ARP fill in the other fields.
40 * This routine CANNOT use cached dst->neigh!
41 * Really, it is used only when dst->neigh is wrong.
43 * TODO: This needs a checkup, I'm ignorant here. --BLG
45 static int vlan_dev_rebuild_header(struct sk_buff *skb)
47 struct net_device *dev = skb->dev;
48 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
50 switch (veth->h_vlan_encapsulated_proto) {
54 /* TODO: Confirm this will work with VLAN headers... */
55 return arp_find(veth->h_dest, skb);
58 pr_debug("%s: unable to resolve type %X addresses.\n",
59 dev->name, ntohs(veth->h_vlan_encapsulated_proto));
61 memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
68 static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb)
70 if (vlan_dev_info(skb->dev)->flags & VLAN_FLAG_REORDER_HDR) {
71 if (skb_cow(skb, skb_headroom(skb)) < 0)
74 /* Lifted from Gleb's VLAN code... */
75 memmove(skb->data - ETH_HLEN,
76 skb->data - VLAN_ETH_HLEN, 12);
77 skb->mac_header += VLAN_HLEN;
84 static inline void vlan_set_encap_proto(struct sk_buff *skb,
85 struct vlan_hdr *vhdr)
91 * Was a VLAN packet, grab the encapsulated protocol, which the layer
92 * three protocols care about.
95 proto = vhdr->h_vlan_encapsulated_proto;
96 if (ntohs(proto) >= 1536) {
97 skb->protocol = proto;
102 if (*(unsigned short *)rawp == 0xFFFF)
104 * This is a magic hack to spot IPX packets. Older Novell
105 * breaks the protocol design and runs IPX over 802.3 without
106 * an 802.2 LLC layer. We look for FFFF which isn't a used
107 * 802.2 SSAP/DSAP. This won't work for fault tolerant netware
108 * but does for the rest.
110 skb->protocol = htons(ETH_P_802_3);
115 skb->protocol = htons(ETH_P_802_2);
119 * Determine the packet's protocol ID. The rule here is that we
120 * assume 802.3 if the type field is short enough to be a length.
121 * This is normal practice and works for any 'now in use' protocol.
123 * Also, at this point we assume that we ARE dealing exclusively with
124 * VLAN packets, or packets that should be made into VLAN packets based
125 * on a default VLAN ID.
127 * NOTE: Should be similar to ethernet/eth.c.
129 * SANITY NOTE: This method is called when a packet is moving up the stack
130 * towards userland. To get here, it would have already passed
131 * through the ethernet/eth.c eth_type_trans() method.
132 * SANITY NOTE 2: We are referencing to the VLAN_HDR frields, which MAY be
133 * stored UNALIGNED in the memory. RISC systems don't like
134 * such cases very much...
135 * SANITY NOTE 2a: According to Dave Miller & Alexey, it will always be
136 * aligned, so there doesn't need to be any of the unaligned
137 * stuff. It has been commented out now... --Ben
140 int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
141 struct packet_type *ptype, struct net_device *orig_dev)
143 struct vlan_hdr *vhdr;
144 struct vlan_rx_stats *rx_stats;
148 skb = skb_share_check(skb, GFP_ATOMIC);
152 if (unlikely(!pskb_may_pull(skb, VLAN_HLEN)))
155 vhdr = (struct vlan_hdr *)skb->data;
156 vlan_tci = ntohs(vhdr->h_vlan_TCI);
157 vlan_id = vlan_tci & VLAN_VID_MASK;
160 skb->dev = __find_vlan_dev(dev, vlan_id);
162 pr_debug("%s: ERROR: No net_device for VID: %u on dev: %s\n",
163 __func__, vlan_id, dev->name);
167 rx_stats = per_cpu_ptr(vlan_dev_info(skb->dev)->vlan_rx_stats,
169 rx_stats->rx_packets++;
170 rx_stats->rx_bytes += skb->len;
172 skb_pull_rcsum(skb, VLAN_HLEN);
174 skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci);
176 pr_debug("%s: priority: %u for TCI: %hu\n",
177 __func__, skb->priority, vlan_tci);
179 switch (skb->pkt_type) {
180 case PACKET_BROADCAST: /* Yeah, stats collect these together.. */
181 /* stats->broadcast ++; // no such counter :-( */
184 case PACKET_MULTICAST:
185 rx_stats->multicast++;
188 case PACKET_OTHERHOST:
189 /* Our lower layer thinks this is not local, let's make sure.
190 * This allows the VLAN to have a different MAC than the
191 * underlying device, and still route correctly.
193 if (!compare_ether_addr(eth_hdr(skb)->h_dest,
195 skb->pkt_type = PACKET_HOST;
201 vlan_set_encap_proto(skb, vhdr);
203 skb = vlan_check_reorder_header(skb);
205 rx_stats->rx_errors++;
211 return NET_RX_SUCCESS;
221 vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
223 struct vlan_priority_tci_mapping *mp;
225 mp = vlan_dev_info(dev)->egress_priority_map[(skb->priority & 0xF)];
227 if (mp->priority == skb->priority) {
228 return mp->vlan_qos; /* This should already be shifted
229 * to mask correctly with the
238 * Create the VLAN header for an arbitrary protocol layer
240 * saddr=NULL means use device source address
241 * daddr=NULL means leave destination address (eg unresolved arp)
243 * This is called when the SKB is moving down the stack towards the
246 static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
248 const void *daddr, const void *saddr,
251 struct vlan_hdr *vhdr;
252 unsigned int vhdrlen = 0;
256 if (WARN_ON(skb_headroom(skb) < dev->hard_header_len))
259 if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) {
260 vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
262 vlan_tci = vlan_dev_info(dev)->vlan_id;
263 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
264 vhdr->h_vlan_TCI = htons(vlan_tci);
267 * Set the protocol type. For a packet of type ETH_P_802_3/2 we
268 * put the length in here instead.
270 if (type != ETH_P_802_3 && type != ETH_P_802_2)
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_set_dev(skb, 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 u16 vlan_dev_select_queue(struct net_device *dev, struct sk_buff *skb)
367 struct net_device *rdev = vlan_dev_info(dev)->real_dev;
368 const struct net_device_ops *ops = rdev->netdev_ops;
370 return ops->ndo_select_queue(rdev, skb);
373 static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
375 /* TODO: gotta make sure the underlying layer can handle it,
376 * maybe an IFF_VLAN_CAPABLE flag for devices?
378 if (vlan_dev_info(dev)->real_dev->mtu < new_mtu)
386 void vlan_dev_set_ingress_priority(const struct net_device *dev,
387 u32 skb_prio, u16 vlan_prio)
389 struct vlan_dev_info *vlan = vlan_dev_info(dev);
391 if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
392 vlan->nr_ingress_mappings--;
393 else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
394 vlan->nr_ingress_mappings++;
396 vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
399 int vlan_dev_set_egress_priority(const struct net_device *dev,
400 u32 skb_prio, u16 vlan_prio)
402 struct vlan_dev_info *vlan = vlan_dev_info(dev);
403 struct vlan_priority_tci_mapping *mp = NULL;
404 struct vlan_priority_tci_mapping *np;
405 u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
407 /* See if a priority mapping exists.. */
408 mp = vlan->egress_priority_map[skb_prio & 0xF];
410 if (mp->priority == skb_prio) {
411 if (mp->vlan_qos && !vlan_qos)
412 vlan->nr_egress_mappings--;
413 else if (!mp->vlan_qos && vlan_qos)
414 vlan->nr_egress_mappings++;
415 mp->vlan_qos = vlan_qos;
421 /* Create a new mapping then. */
422 mp = vlan->egress_priority_map[skb_prio & 0xF];
423 np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
428 np->priority = skb_prio;
429 np->vlan_qos = vlan_qos;
430 vlan->egress_priority_map[skb_prio & 0xF] = np;
432 vlan->nr_egress_mappings++;
436 /* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
437 int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
439 struct vlan_dev_info *vlan = vlan_dev_info(dev);
440 u32 old_flags = vlan->flags;
442 if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
443 VLAN_FLAG_LOOSE_BINDING))
446 vlan->flags = (old_flags & ~mask) | (flags & mask);
448 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
449 if (vlan->flags & VLAN_FLAG_GVRP)
450 vlan_gvrp_request_join(dev);
452 vlan_gvrp_request_leave(dev);
457 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
459 strncpy(result, vlan_dev_info(dev)->real_dev->name, 23);
462 static int vlan_dev_open(struct net_device *dev)
464 struct vlan_dev_info *vlan = vlan_dev_info(dev);
465 struct net_device *real_dev = vlan->real_dev;
468 if (!(real_dev->flags & IFF_UP) &&
469 !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
472 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
473 err = dev_unicast_add(real_dev, dev->dev_addr);
478 if (dev->flags & IFF_ALLMULTI) {
479 err = dev_set_allmulti(real_dev, 1);
483 if (dev->flags & IFF_PROMISC) {
484 err = dev_set_promiscuity(real_dev, 1);
489 memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);
491 if (vlan->flags & VLAN_FLAG_GVRP)
492 vlan_gvrp_request_join(dev);
494 netif_carrier_on(dev);
498 if (dev->flags & IFF_ALLMULTI)
499 dev_set_allmulti(real_dev, -1);
501 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
502 dev_unicast_delete(real_dev, dev->dev_addr);
504 netif_carrier_off(dev);
508 static int vlan_dev_stop(struct net_device *dev)
510 struct vlan_dev_info *vlan = vlan_dev_info(dev);
511 struct net_device *real_dev = vlan->real_dev;
513 if (vlan->flags & VLAN_FLAG_GVRP)
514 vlan_gvrp_request_leave(dev);
516 dev_mc_unsync(real_dev, dev);
517 dev_unicast_unsync(real_dev, dev);
518 if (dev->flags & IFF_ALLMULTI)
519 dev_set_allmulti(real_dev, -1);
520 if (dev->flags & IFF_PROMISC)
521 dev_set_promiscuity(real_dev, -1);
523 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
524 dev_unicast_delete(real_dev, dev->dev_addr);
526 netif_carrier_off(dev);
530 static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
532 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
533 struct sockaddr *addr = p;
536 if (!is_valid_ether_addr(addr->sa_data))
537 return -EADDRNOTAVAIL;
539 if (!(dev->flags & IFF_UP))
542 if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
543 err = dev_unicast_add(real_dev, addr->sa_data);
548 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
549 dev_unicast_delete(real_dev, dev->dev_addr);
552 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
556 static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
558 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
559 const struct net_device_ops *ops = real_dev->netdev_ops;
561 int err = -EOPNOTSUPP;
563 strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
564 ifrr.ifr_ifru = ifr->ifr_ifru;
570 if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
571 err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
576 ifr->ifr_ifru = ifrr.ifr_ifru;
581 static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
583 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
584 const struct net_device_ops *ops = real_dev->netdev_ops;
587 if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
588 err = ops->ndo_neigh_setup(real_dev, pa);
593 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
594 static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
595 struct scatterlist *sgl, unsigned int sgc)
597 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
598 const struct net_device_ops *ops = real_dev->netdev_ops;
601 if (ops->ndo_fcoe_ddp_setup)
602 rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
607 static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
609 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
610 const struct net_device_ops *ops = real_dev->netdev_ops;
613 if (ops->ndo_fcoe_ddp_done)
614 len = ops->ndo_fcoe_ddp_done(real_dev, xid);
619 static int vlan_dev_fcoe_enable(struct net_device *dev)
621 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
622 const struct net_device_ops *ops = real_dev->netdev_ops;
625 if (ops->ndo_fcoe_enable)
626 rc = ops->ndo_fcoe_enable(real_dev);
630 static int vlan_dev_fcoe_disable(struct net_device *dev)
632 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
633 const struct net_device_ops *ops = real_dev->netdev_ops;
636 if (ops->ndo_fcoe_disable)
637 rc = ops->ndo_fcoe_disable(real_dev);
641 static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
643 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
644 const struct net_device_ops *ops = real_dev->netdev_ops;
647 if (ops->ndo_fcoe_get_wwn)
648 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
653 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
655 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
657 if (change & IFF_ALLMULTI)
658 dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
659 if (change & IFF_PROMISC)
660 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
663 static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
665 dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
666 dev_unicast_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
670 * vlan network devices have devices nesting below it, and are a special
671 * "super class" of normal network devices; split their locks off into a
672 * separate class since they always nest.
674 static struct lock_class_key vlan_netdev_xmit_lock_key;
675 static struct lock_class_key vlan_netdev_addr_lock_key;
677 static void vlan_dev_set_lockdep_one(struct net_device *dev,
678 struct netdev_queue *txq,
681 lockdep_set_class_and_subclass(&txq->_xmit_lock,
682 &vlan_netdev_xmit_lock_key,
686 static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
688 lockdep_set_class_and_subclass(&dev->addr_list_lock,
689 &vlan_netdev_addr_lock_key,
691 netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
694 static const struct header_ops vlan_header_ops = {
695 .create = vlan_dev_hard_header,
696 .rebuild = vlan_dev_rebuild_header,
697 .parse = eth_header_parse,
700 static const struct net_device_ops vlan_netdev_ops, vlan_netdev_accel_ops,
701 vlan_netdev_ops_sq, vlan_netdev_accel_ops_sq;
703 static int vlan_dev_init(struct net_device *dev)
705 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
708 netif_carrier_off(dev);
710 /* IFF_BROADCAST|IFF_MULTICAST; ??? */
711 dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI);
712 dev->iflink = real_dev->ifindex;
713 dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
714 (1<<__LINK_STATE_DORMANT))) |
715 (1<<__LINK_STATE_PRESENT);
717 dev->features |= real_dev->features & real_dev->vlan_features;
718 dev->gso_max_size = real_dev->gso_max_size;
720 /* ipv6 shared card related stuff */
721 dev->dev_id = real_dev->dev_id;
723 if (is_zero_ether_addr(dev->dev_addr))
724 memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
725 if (is_zero_ether_addr(dev->broadcast))
726 memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
728 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
729 dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
732 if (real_dev->features & NETIF_F_HW_VLAN_TX) {
733 dev->header_ops = real_dev->header_ops;
734 dev->hard_header_len = real_dev->hard_header_len;
735 if (real_dev->netdev_ops->ndo_select_queue)
736 dev->netdev_ops = &vlan_netdev_accel_ops_sq;
738 dev->netdev_ops = &vlan_netdev_accel_ops;
740 dev->header_ops = &vlan_header_ops;
741 dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
742 if (real_dev->netdev_ops->ndo_select_queue)
743 dev->netdev_ops = &vlan_netdev_ops_sq;
745 dev->netdev_ops = &vlan_netdev_ops;
748 if (is_vlan_dev(real_dev))
751 vlan_dev_set_lockdep_class(dev, subclass);
753 vlan_dev_info(dev)->vlan_rx_stats = alloc_percpu(struct vlan_rx_stats);
754 if (!vlan_dev_info(dev)->vlan_rx_stats)
760 static void vlan_dev_uninit(struct net_device *dev)
762 struct vlan_priority_tci_mapping *pm;
763 struct vlan_dev_info *vlan = vlan_dev_info(dev);
766 free_percpu(vlan->vlan_rx_stats);
767 vlan->vlan_rx_stats = NULL;
768 for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
769 while ((pm = vlan->egress_priority_map[i]) != NULL) {
770 vlan->egress_priority_map[i] = pm->next;
776 static int vlan_ethtool_get_settings(struct net_device *dev,
777 struct ethtool_cmd *cmd)
779 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
780 return dev_ethtool_get_settings(vlan->real_dev, cmd);
783 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
784 struct ethtool_drvinfo *info)
786 strcpy(info->driver, vlan_fullname);
787 strcpy(info->version, vlan_version);
788 strcpy(info->fw_version, "N/A");
791 static u32 vlan_ethtool_get_rx_csum(struct net_device *dev)
793 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
794 return dev_ethtool_get_rx_csum(vlan->real_dev);
797 static u32 vlan_ethtool_get_flags(struct net_device *dev)
799 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
800 return dev_ethtool_get_flags(vlan->real_dev);
803 static struct net_device_stats *vlan_dev_get_stats(struct net_device *dev)
805 struct net_device_stats *stats = &dev->stats;
807 dev_txq_stats_fold(dev, stats);
809 if (vlan_dev_info(dev)->vlan_rx_stats) {
810 struct vlan_rx_stats *p, rx = {0};
813 for_each_possible_cpu(i) {
814 p = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats, i);
815 rx.rx_packets += p->rx_packets;
816 rx.rx_bytes += p->rx_bytes;
817 rx.rx_errors += p->rx_errors;
818 rx.multicast += p->multicast;
820 stats->rx_packets = rx.rx_packets;
821 stats->rx_bytes = rx.rx_bytes;
822 stats->rx_errors = rx.rx_errors;
823 stats->multicast = rx.multicast;
828 static const struct ethtool_ops vlan_ethtool_ops = {
829 .get_settings = vlan_ethtool_get_settings,
830 .get_drvinfo = vlan_ethtool_get_drvinfo,
831 .get_link = ethtool_op_get_link,
832 .get_rx_csum = vlan_ethtool_get_rx_csum,
833 .get_flags = vlan_ethtool_get_flags,
836 static const struct net_device_ops vlan_netdev_ops = {
837 .ndo_change_mtu = vlan_dev_change_mtu,
838 .ndo_init = vlan_dev_init,
839 .ndo_uninit = vlan_dev_uninit,
840 .ndo_open = vlan_dev_open,
841 .ndo_stop = vlan_dev_stop,
842 .ndo_start_xmit = vlan_dev_hard_start_xmit,
843 .ndo_validate_addr = eth_validate_addr,
844 .ndo_set_mac_address = vlan_dev_set_mac_address,
845 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
846 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
847 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
848 .ndo_do_ioctl = vlan_dev_ioctl,
849 .ndo_neigh_setup = vlan_dev_neigh_setup,
850 .ndo_get_stats = vlan_dev_get_stats,
851 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
852 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
853 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
854 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
855 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
856 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
860 static const struct net_device_ops vlan_netdev_accel_ops = {
861 .ndo_change_mtu = vlan_dev_change_mtu,
862 .ndo_init = vlan_dev_init,
863 .ndo_uninit = vlan_dev_uninit,
864 .ndo_open = vlan_dev_open,
865 .ndo_stop = vlan_dev_stop,
866 .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit,
867 .ndo_validate_addr = eth_validate_addr,
868 .ndo_set_mac_address = vlan_dev_set_mac_address,
869 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
870 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
871 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
872 .ndo_do_ioctl = vlan_dev_ioctl,
873 .ndo_neigh_setup = vlan_dev_neigh_setup,
874 .ndo_get_stats = vlan_dev_get_stats,
875 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
876 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
877 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
878 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
879 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
880 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
884 static const struct net_device_ops vlan_netdev_ops_sq = {
885 .ndo_select_queue = vlan_dev_select_queue,
886 .ndo_change_mtu = vlan_dev_change_mtu,
887 .ndo_init = vlan_dev_init,
888 .ndo_uninit = vlan_dev_uninit,
889 .ndo_open = vlan_dev_open,
890 .ndo_stop = vlan_dev_stop,
891 .ndo_start_xmit = vlan_dev_hard_start_xmit,
892 .ndo_validate_addr = eth_validate_addr,
893 .ndo_set_mac_address = vlan_dev_set_mac_address,
894 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
895 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
896 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
897 .ndo_do_ioctl = vlan_dev_ioctl,
898 .ndo_neigh_setup = vlan_dev_neigh_setup,
899 .ndo_get_stats = vlan_dev_get_stats,
900 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
901 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
902 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
903 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
904 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
905 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
909 static const struct net_device_ops vlan_netdev_accel_ops_sq = {
910 .ndo_select_queue = vlan_dev_select_queue,
911 .ndo_change_mtu = vlan_dev_change_mtu,
912 .ndo_init = vlan_dev_init,
913 .ndo_uninit = vlan_dev_uninit,
914 .ndo_open = vlan_dev_open,
915 .ndo_stop = vlan_dev_stop,
916 .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit,
917 .ndo_validate_addr = eth_validate_addr,
918 .ndo_set_mac_address = vlan_dev_set_mac_address,
919 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
920 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
921 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
922 .ndo_do_ioctl = vlan_dev_ioctl,
923 .ndo_neigh_setup = vlan_dev_neigh_setup,
924 .ndo_get_stats = vlan_dev_get_stats,
925 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
926 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
927 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
928 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
929 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
930 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
934 void vlan_setup(struct net_device *dev)
938 dev->priv_flags |= IFF_802_1Q_VLAN;
939 dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
940 dev->tx_queue_len = 0;
942 dev->netdev_ops = &vlan_netdev_ops;
943 dev->destructor = free_netdev;
944 dev->ethtool_ops = &vlan_ethtool_ops;
946 memset(dev->broadcast, 0, ETH_ALEN);