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 u64_stats_update_begin(&rx_stats->syncp);
170 rx_stats->rx_packets++;
171 rx_stats->rx_bytes += skb->len;
173 skb_pull_rcsum(skb, VLAN_HLEN);
175 skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci);
177 pr_debug("%s: priority: %u for TCI: %hu\n",
178 __func__, skb->priority, vlan_tci);
180 switch (skb->pkt_type) {
181 case PACKET_BROADCAST: /* Yeah, stats collect these together.. */
182 /* stats->broadcast ++; // no such counter :-( */
185 case PACKET_MULTICAST:
186 rx_stats->rx_multicast++;
189 case PACKET_OTHERHOST:
190 /* Our lower layer thinks this is not local, let's make sure.
191 * This allows the VLAN to have a different MAC than the
192 * underlying device, and still route correctly.
194 if (!compare_ether_addr(eth_hdr(skb)->h_dest,
196 skb->pkt_type = PACKET_HOST;
201 u64_stats_update_end(&rx_stats->syncp);
203 vlan_set_encap_proto(skb, vhdr);
205 skb = vlan_check_reorder_header(skb);
207 rx_stats->rx_errors++;
213 return NET_RX_SUCCESS;
223 vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
225 struct vlan_priority_tci_mapping *mp;
227 mp = vlan_dev_info(dev)->egress_priority_map[(skb->priority & 0xF)];
229 if (mp->priority == skb->priority) {
230 return mp->vlan_qos; /* This should already be shifted
231 * to mask correctly with the
240 * Create the VLAN header for an arbitrary protocol layer
242 * saddr=NULL means use device source address
243 * daddr=NULL means leave destination address (eg unresolved arp)
245 * This is called when the SKB is moving down the stack towards the
248 static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
250 const void *daddr, const void *saddr,
253 struct vlan_hdr *vhdr;
254 unsigned int vhdrlen = 0;
258 if (WARN_ON(skb_headroom(skb) < dev->hard_header_len))
261 if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) {
262 vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
264 vlan_tci = vlan_dev_info(dev)->vlan_id;
265 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
266 vhdr->h_vlan_TCI = htons(vlan_tci);
269 * Set the protocol type. For a packet of type ETH_P_802_3/2 we
270 * put the length in here instead.
272 if (type != ETH_P_802_3 && type != ETH_P_802_2)
273 vhdr->h_vlan_encapsulated_proto = htons(type);
275 vhdr->h_vlan_encapsulated_proto = htons(len);
277 skb->protocol = htons(ETH_P_8021Q);
282 /* Before delegating work to the lower layer, enter our MAC-address */
284 saddr = dev->dev_addr;
286 /* Now make the underlying real hard header */
287 dev = vlan_dev_info(dev)->real_dev;
288 rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen);
294 static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
295 struct net_device *dev)
297 int i = skb_get_queue_mapping(skb);
298 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
299 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
303 /* Handle non-VLAN frames if they are sent to us, for example by DHCP.
305 * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
306 * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
308 if (veth->h_vlan_proto != htons(ETH_P_8021Q) ||
309 vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR) {
310 unsigned int orig_headroom = skb_headroom(skb);
313 vlan_dev_info(dev)->cnt_encap_on_xmit++;
315 vlan_tci = vlan_dev_info(dev)->vlan_id;
316 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
317 skb = __vlan_put_tag(skb, vlan_tci);
323 if (orig_headroom < VLAN_HLEN)
324 vlan_dev_info(dev)->cnt_inc_headroom_on_tx++;
328 skb_set_dev(skb, vlan_dev_info(dev)->real_dev);
330 ret = dev_queue_xmit(skb);
332 if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
334 txq->tx_bytes += len;
341 static netdev_tx_t vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb,
342 struct net_device *dev)
344 int i = skb_get_queue_mapping(skb);
345 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
350 vlan_tci = vlan_dev_info(dev)->vlan_id;
351 vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
352 skb = __vlan_hwaccel_put_tag(skb, vlan_tci);
354 skb->dev = vlan_dev_info(dev)->real_dev;
356 ret = dev_queue_xmit(skb);
358 if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
360 txq->tx_bytes += len;
367 static u16 vlan_dev_select_queue(struct net_device *dev, struct sk_buff *skb)
369 struct net_device *rdev = vlan_dev_info(dev)->real_dev;
370 const struct net_device_ops *ops = rdev->netdev_ops;
372 return ops->ndo_select_queue(rdev, skb);
375 static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
377 /* TODO: gotta make sure the underlying layer can handle it,
378 * maybe an IFF_VLAN_CAPABLE flag for devices?
380 if (vlan_dev_info(dev)->real_dev->mtu < new_mtu)
388 void vlan_dev_set_ingress_priority(const struct net_device *dev,
389 u32 skb_prio, u16 vlan_prio)
391 struct vlan_dev_info *vlan = vlan_dev_info(dev);
393 if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
394 vlan->nr_ingress_mappings--;
395 else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
396 vlan->nr_ingress_mappings++;
398 vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
401 int vlan_dev_set_egress_priority(const struct net_device *dev,
402 u32 skb_prio, u16 vlan_prio)
404 struct vlan_dev_info *vlan = vlan_dev_info(dev);
405 struct vlan_priority_tci_mapping *mp = NULL;
406 struct vlan_priority_tci_mapping *np;
407 u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
409 /* See if a priority mapping exists.. */
410 mp = vlan->egress_priority_map[skb_prio & 0xF];
412 if (mp->priority == skb_prio) {
413 if (mp->vlan_qos && !vlan_qos)
414 vlan->nr_egress_mappings--;
415 else if (!mp->vlan_qos && vlan_qos)
416 vlan->nr_egress_mappings++;
417 mp->vlan_qos = vlan_qos;
423 /* Create a new mapping then. */
424 mp = vlan->egress_priority_map[skb_prio & 0xF];
425 np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
430 np->priority = skb_prio;
431 np->vlan_qos = vlan_qos;
432 vlan->egress_priority_map[skb_prio & 0xF] = np;
434 vlan->nr_egress_mappings++;
438 /* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
439 int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
441 struct vlan_dev_info *vlan = vlan_dev_info(dev);
442 u32 old_flags = vlan->flags;
444 if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
445 VLAN_FLAG_LOOSE_BINDING))
448 vlan->flags = (old_flags & ~mask) | (flags & mask);
450 if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
451 if (vlan->flags & VLAN_FLAG_GVRP)
452 vlan_gvrp_request_join(dev);
454 vlan_gvrp_request_leave(dev);
459 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
461 strncpy(result, vlan_dev_info(dev)->real_dev->name, 23);
464 static int vlan_dev_open(struct net_device *dev)
466 struct vlan_dev_info *vlan = vlan_dev_info(dev);
467 struct net_device *real_dev = vlan->real_dev;
470 if (!(real_dev->flags & IFF_UP) &&
471 !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
474 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
475 err = dev_uc_add(real_dev, dev->dev_addr);
480 if (dev->flags & IFF_ALLMULTI) {
481 err = dev_set_allmulti(real_dev, 1);
485 if (dev->flags & IFF_PROMISC) {
486 err = dev_set_promiscuity(real_dev, 1);
491 memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);
493 if (vlan->flags & VLAN_FLAG_GVRP)
494 vlan_gvrp_request_join(dev);
496 netif_carrier_on(dev);
500 if (dev->flags & IFF_ALLMULTI)
501 dev_set_allmulti(real_dev, -1);
503 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
504 dev_uc_del(real_dev, dev->dev_addr);
506 netif_carrier_off(dev);
510 static int vlan_dev_stop(struct net_device *dev)
512 struct vlan_dev_info *vlan = vlan_dev_info(dev);
513 struct net_device *real_dev = vlan->real_dev;
515 if (vlan->flags & VLAN_FLAG_GVRP)
516 vlan_gvrp_request_leave(dev);
518 dev_mc_unsync(real_dev, dev);
519 dev_uc_unsync(real_dev, dev);
520 if (dev->flags & IFF_ALLMULTI)
521 dev_set_allmulti(real_dev, -1);
522 if (dev->flags & IFF_PROMISC)
523 dev_set_promiscuity(real_dev, -1);
525 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
526 dev_uc_del(real_dev, dev->dev_addr);
528 netif_carrier_off(dev);
532 static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
534 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
535 struct sockaddr *addr = p;
538 if (!is_valid_ether_addr(addr->sa_data))
539 return -EADDRNOTAVAIL;
541 if (!(dev->flags & IFF_UP))
544 if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
545 err = dev_uc_add(real_dev, addr->sa_data);
550 if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
551 dev_uc_del(real_dev, dev->dev_addr);
554 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
558 static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
560 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
561 const struct net_device_ops *ops = real_dev->netdev_ops;
563 int err = -EOPNOTSUPP;
565 strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
566 ifrr.ifr_ifru = ifr->ifr_ifru;
572 if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
573 err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
578 ifr->ifr_ifru = ifrr.ifr_ifru;
583 static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
585 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
586 const struct net_device_ops *ops = real_dev->netdev_ops;
589 if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
590 err = ops->ndo_neigh_setup(real_dev, pa);
595 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
596 static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
597 struct scatterlist *sgl, unsigned int sgc)
599 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
600 const struct net_device_ops *ops = real_dev->netdev_ops;
603 if (ops->ndo_fcoe_ddp_setup)
604 rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
609 static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
611 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
612 const struct net_device_ops *ops = real_dev->netdev_ops;
615 if (ops->ndo_fcoe_ddp_done)
616 len = ops->ndo_fcoe_ddp_done(real_dev, xid);
621 static int vlan_dev_fcoe_enable(struct net_device *dev)
623 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
624 const struct net_device_ops *ops = real_dev->netdev_ops;
627 if (ops->ndo_fcoe_enable)
628 rc = ops->ndo_fcoe_enable(real_dev);
632 static int vlan_dev_fcoe_disable(struct net_device *dev)
634 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
635 const struct net_device_ops *ops = real_dev->netdev_ops;
638 if (ops->ndo_fcoe_disable)
639 rc = ops->ndo_fcoe_disable(real_dev);
643 static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
645 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
646 const struct net_device_ops *ops = real_dev->netdev_ops;
649 if (ops->ndo_fcoe_get_wwn)
650 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
655 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
657 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
659 if (change & IFF_ALLMULTI)
660 dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
661 if (change & IFF_PROMISC)
662 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
665 static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
667 dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
668 dev_uc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
672 * vlan network devices have devices nesting below it, and are a special
673 * "super class" of normal network devices; split their locks off into a
674 * separate class since they always nest.
676 static struct lock_class_key vlan_netdev_xmit_lock_key;
677 static struct lock_class_key vlan_netdev_addr_lock_key;
679 static void vlan_dev_set_lockdep_one(struct net_device *dev,
680 struct netdev_queue *txq,
683 lockdep_set_class_and_subclass(&txq->_xmit_lock,
684 &vlan_netdev_xmit_lock_key,
688 static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
690 lockdep_set_class_and_subclass(&dev->addr_list_lock,
691 &vlan_netdev_addr_lock_key,
693 netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
696 static const struct header_ops vlan_header_ops = {
697 .create = vlan_dev_hard_header,
698 .rebuild = vlan_dev_rebuild_header,
699 .parse = eth_header_parse,
702 static const struct net_device_ops vlan_netdev_ops, vlan_netdev_accel_ops,
703 vlan_netdev_ops_sq, vlan_netdev_accel_ops_sq;
705 static int vlan_dev_init(struct net_device *dev)
707 struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
710 netif_carrier_off(dev);
712 /* IFF_BROADCAST|IFF_MULTICAST; ??? */
713 dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
714 IFF_MASTER | IFF_SLAVE);
715 dev->iflink = real_dev->ifindex;
716 dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
717 (1<<__LINK_STATE_DORMANT))) |
718 (1<<__LINK_STATE_PRESENT);
720 dev->features |= real_dev->features & real_dev->vlan_features;
721 dev->gso_max_size = real_dev->gso_max_size;
723 /* ipv6 shared card related stuff */
724 dev->dev_id = real_dev->dev_id;
726 if (is_zero_ether_addr(dev->dev_addr))
727 memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
728 if (is_zero_ether_addr(dev->broadcast))
729 memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
731 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
732 dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
735 if (real_dev->features & NETIF_F_HW_VLAN_TX) {
736 dev->header_ops = real_dev->header_ops;
737 dev->hard_header_len = real_dev->hard_header_len;
738 if (real_dev->netdev_ops->ndo_select_queue)
739 dev->netdev_ops = &vlan_netdev_accel_ops_sq;
741 dev->netdev_ops = &vlan_netdev_accel_ops;
743 dev->header_ops = &vlan_header_ops;
744 dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
745 if (real_dev->netdev_ops->ndo_select_queue)
746 dev->netdev_ops = &vlan_netdev_ops_sq;
748 dev->netdev_ops = &vlan_netdev_ops;
751 if (is_vlan_dev(real_dev))
754 vlan_dev_set_lockdep_class(dev, subclass);
756 vlan_dev_info(dev)->vlan_rx_stats = alloc_percpu(struct vlan_rx_stats);
757 if (!vlan_dev_info(dev)->vlan_rx_stats)
763 static void vlan_dev_uninit(struct net_device *dev)
765 struct vlan_priority_tci_mapping *pm;
766 struct vlan_dev_info *vlan = vlan_dev_info(dev);
769 free_percpu(vlan->vlan_rx_stats);
770 vlan->vlan_rx_stats = NULL;
771 for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
772 while ((pm = vlan->egress_priority_map[i]) != NULL) {
773 vlan->egress_priority_map[i] = pm->next;
779 static int vlan_ethtool_get_settings(struct net_device *dev,
780 struct ethtool_cmd *cmd)
782 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
783 return dev_ethtool_get_settings(vlan->real_dev, cmd);
786 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
787 struct ethtool_drvinfo *info)
789 strcpy(info->driver, vlan_fullname);
790 strcpy(info->version, vlan_version);
791 strcpy(info->fw_version, "N/A");
794 static u32 vlan_ethtool_get_rx_csum(struct net_device *dev)
796 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
797 return dev_ethtool_get_rx_csum(vlan->real_dev);
800 static u32 vlan_ethtool_get_flags(struct net_device *dev)
802 const struct vlan_dev_info *vlan = vlan_dev_info(dev);
803 return dev_ethtool_get_flags(vlan->real_dev);
806 static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
808 dev_txq_stats_fold(dev, (struct net_device_stats *)stats);
810 if (vlan_dev_info(dev)->vlan_rx_stats) {
811 struct vlan_rx_stats *p, accum = {0};
814 for_each_possible_cpu(i) {
815 u64 rxpackets, rxbytes, rxmulticast;
818 p = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats, i);
820 start = u64_stats_fetch_begin_bh(&p->syncp);
821 rxpackets = p->rx_packets;
822 rxbytes = p->rx_bytes;
823 rxmulticast = p->rx_multicast;
824 } while (u64_stats_fetch_retry_bh(&p->syncp, start));
825 accum.rx_packets += rxpackets;
826 accum.rx_bytes += rxbytes;
827 accum.rx_multicast += rxmulticast;
828 /* rx_errors is an ulong, not protected by syncp */
829 accum.rx_errors += p->rx_errors;
831 stats->rx_packets = accum.rx_packets;
832 stats->rx_bytes = accum.rx_bytes;
833 stats->rx_errors = accum.rx_errors;
834 stats->multicast = accum.rx_multicast;
839 static const struct ethtool_ops vlan_ethtool_ops = {
840 .get_settings = vlan_ethtool_get_settings,
841 .get_drvinfo = vlan_ethtool_get_drvinfo,
842 .get_link = ethtool_op_get_link,
843 .get_rx_csum = vlan_ethtool_get_rx_csum,
844 .get_flags = vlan_ethtool_get_flags,
847 static const struct net_device_ops vlan_netdev_ops = {
848 .ndo_change_mtu = vlan_dev_change_mtu,
849 .ndo_init = vlan_dev_init,
850 .ndo_uninit = vlan_dev_uninit,
851 .ndo_open = vlan_dev_open,
852 .ndo_stop = vlan_dev_stop,
853 .ndo_start_xmit = vlan_dev_hard_start_xmit,
854 .ndo_validate_addr = eth_validate_addr,
855 .ndo_set_mac_address = vlan_dev_set_mac_address,
856 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
857 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
858 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
859 .ndo_do_ioctl = vlan_dev_ioctl,
860 .ndo_neigh_setup = vlan_dev_neigh_setup,
861 .ndo_get_stats64 = vlan_dev_get_stats64,
862 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
863 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
864 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
865 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
866 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
867 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
871 static const struct net_device_ops vlan_netdev_accel_ops = {
872 .ndo_change_mtu = vlan_dev_change_mtu,
873 .ndo_init = vlan_dev_init,
874 .ndo_uninit = vlan_dev_uninit,
875 .ndo_open = vlan_dev_open,
876 .ndo_stop = vlan_dev_stop,
877 .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit,
878 .ndo_validate_addr = eth_validate_addr,
879 .ndo_set_mac_address = vlan_dev_set_mac_address,
880 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
881 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
882 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
883 .ndo_do_ioctl = vlan_dev_ioctl,
884 .ndo_neigh_setup = vlan_dev_neigh_setup,
885 .ndo_get_stats64 = vlan_dev_get_stats64,
886 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
887 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
888 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
889 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
890 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
891 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
895 static const struct net_device_ops vlan_netdev_ops_sq = {
896 .ndo_select_queue = vlan_dev_select_queue,
897 .ndo_change_mtu = vlan_dev_change_mtu,
898 .ndo_init = vlan_dev_init,
899 .ndo_uninit = vlan_dev_uninit,
900 .ndo_open = vlan_dev_open,
901 .ndo_stop = vlan_dev_stop,
902 .ndo_start_xmit = vlan_dev_hard_start_xmit,
903 .ndo_validate_addr = eth_validate_addr,
904 .ndo_set_mac_address = vlan_dev_set_mac_address,
905 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
906 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
907 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
908 .ndo_do_ioctl = vlan_dev_ioctl,
909 .ndo_neigh_setup = vlan_dev_neigh_setup,
910 .ndo_get_stats64 = vlan_dev_get_stats64,
911 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
912 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
913 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
914 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
915 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
916 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
920 static const struct net_device_ops vlan_netdev_accel_ops_sq = {
921 .ndo_select_queue = vlan_dev_select_queue,
922 .ndo_change_mtu = vlan_dev_change_mtu,
923 .ndo_init = vlan_dev_init,
924 .ndo_uninit = vlan_dev_uninit,
925 .ndo_open = vlan_dev_open,
926 .ndo_stop = vlan_dev_stop,
927 .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit,
928 .ndo_validate_addr = eth_validate_addr,
929 .ndo_set_mac_address = vlan_dev_set_mac_address,
930 .ndo_set_rx_mode = vlan_dev_set_rx_mode,
931 .ndo_set_multicast_list = vlan_dev_set_rx_mode,
932 .ndo_change_rx_flags = vlan_dev_change_rx_flags,
933 .ndo_do_ioctl = vlan_dev_ioctl,
934 .ndo_neigh_setup = vlan_dev_neigh_setup,
935 .ndo_get_stats64 = vlan_dev_get_stats64,
936 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
937 .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
938 .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
939 .ndo_fcoe_enable = vlan_dev_fcoe_enable,
940 .ndo_fcoe_disable = vlan_dev_fcoe_disable,
941 .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
945 void vlan_setup(struct net_device *dev)
949 dev->priv_flags |= IFF_802_1Q_VLAN;
950 dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
951 dev->tx_queue_len = 0;
953 dev->netdev_ops = &vlan_netdev_ops;
954 dev->destructor = free_netdev;
955 dev->ethtool_ops = &vlan_ethtool_ops;
957 memset(dev->broadcast, 0, ETH_ALEN);