Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* -*- linux-c -*- |
3 | * INET 802.1Q VLAN | |
4 | * Ethernet-type device handling. | |
5 | * | |
6 | * Authors: Ben Greear <greearb@candelatech.com> | |
ad712087 | 7 | * Please send support related email to: netdev@vger.kernel.org |
1da177e4 | 8 | * VLAN Home Page: http://www.candelatech.com/~greear/vlan.html |
122952fc | 9 | * |
1da177e4 LT |
10 | * Fixes: Mar 22 2001: Martin Bokaemper <mbokaemper@unispherenetworks.com> |
11 | * - reset skb->pkt_type on incoming packets when MAC was changed | |
12 | * - see that changed MAC is saddr for outgoing packets | |
13 | * Oct 20, 2001: Ard van Breeman: | |
14 | * - Fix MC-list, finally. | |
15 | * - Flush MC-list on VLAN destroy. | |
1da177e4 LT |
16 | */ |
17 | ||
afab2d29 JP |
18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
19 | ||
1da177e4 | 20 | #include <linux/module.h> |
5a0e3ad6 | 21 | #include <linux/slab.h> |
1da177e4 LT |
22 | #include <linux/skbuff.h> |
23 | #include <linux/netdevice.h> | |
37dd9255 | 24 | #include <linux/net_tstamp.h> |
1da177e4 | 25 | #include <linux/etherdevice.h> |
75b8846a | 26 | #include <linux/ethtool.h> |
ec1d8ccb | 27 | #include <linux/phy.h> |
1da177e4 | 28 | #include <net/arp.h> |
abff3e5e | 29 | #include <net/macsec.h> |
1da177e4 LT |
30 | |
31 | #include "vlan.h" | |
32 | #include "vlanproc.h" | |
33 | #include <linux/if_vlan.h> | |
6d4cdf47 | 34 | #include <linux/netpoll.h> |
1da177e4 | 35 | |
1da177e4 | 36 | /* |
122952fc | 37 | * Create the VLAN header for an arbitrary protocol layer |
1da177e4 LT |
38 | * |
39 | * saddr=NULL means use device source address | |
40 | * daddr=NULL means leave destination address (eg unresolved arp) | |
41 | * | |
42 | * This is called when the SKB is moving down the stack towards the | |
43 | * physical devices. | |
44 | */ | |
ef3eb3e5 PM |
45 | static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, |
46 | unsigned short type, | |
47 | const void *daddr, const void *saddr, | |
48 | unsigned int len) | |
1da177e4 | 49 | { |
1fd9b1fc | 50 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
1da177e4 | 51 | struct vlan_hdr *vhdr; |
1349fe9a | 52 | unsigned int vhdrlen = 0; |
9bb8582e | 53 | u16 vlan_tci = 0; |
1349fe9a | 54 | int rc; |
1da177e4 | 55 | |
0c0667a8 | 56 | if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) { |
d58ff351 | 57 | vhdr = skb_push(skb, VLAN_HLEN); |
1da177e4 | 58 | |
0c0667a8 | 59 | vlan_tci = vlan->vlan_id; |
e267cb96 | 60 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority); |
9bb8582e | 61 | vhdr->h_vlan_TCI = htons(vlan_tci); |
1da177e4 LT |
62 | |
63 | /* | |
bf9ae538 OP |
64 | * Set the protocol type. For a packet of type ETH_P_802_3/2 we |
65 | * put the length in here instead. | |
1da177e4 | 66 | */ |
bf9ae538 | 67 | if (type != ETH_P_802_3 && type != ETH_P_802_2) |
1da177e4 | 68 | vhdr->h_vlan_encapsulated_proto = htons(type); |
2029cc2c | 69 | else |
1da177e4 | 70 | vhdr->h_vlan_encapsulated_proto = htons(len); |
279e172a | 71 | |
1fd9b1fc PM |
72 | skb->protocol = vlan->vlan_proto; |
73 | type = ntohs(vlan->vlan_proto); | |
1349fe9a | 74 | vhdrlen = VLAN_HLEN; |
1da177e4 LT |
75 | } |
76 | ||
77 | /* Before delegating work to the lower layer, enter our MAC-address */ | |
78 | if (saddr == NULL) | |
79 | saddr = dev->dev_addr; | |
80 | ||
1349fe9a | 81 | /* Now make the underlying real hard header */ |
0c0667a8 | 82 | dev = vlan->real_dev; |
1349fe9a PM |
83 | rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen); |
84 | if (rc > 0) | |
85 | rc += vhdrlen; | |
1da177e4 LT |
86 | return rc; |
87 | } | |
88 | ||
6eacf8ad AW |
89 | static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb) |
90 | { | |
91 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
f78ed220 | 92 | return netpoll_send_skb(vlan->netpoll, skb); |
6eacf8ad AW |
93 | #else |
94 | BUG(); | |
6eacf8ad | 95 | return NETDEV_TX_OK; |
f78ed220 | 96 | #endif |
6eacf8ad AW |
97 | } |
98 | ||
6fef4c0c SH |
99 | static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, |
100 | struct net_device *dev) | |
1da177e4 | 101 | { |
6eacf8ad | 102 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
1da177e4 | 103 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); |
1a123a31 ED |
104 | unsigned int len; |
105 | int ret; | |
55b01e86 | 106 | |
1da177e4 LT |
107 | /* Handle non-VLAN frames if they are sent to us, for example by DHCP. |
108 | * | |
109 | * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING | |
110 | * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs... | |
111 | */ | |
dacab578 ED |
112 | if (vlan->flags & VLAN_FLAG_REORDER_HDR || |
113 | veth->h_vlan_proto != vlan->vlan_proto) { | |
9bb8582e | 114 | u16 vlan_tci; |
6eacf8ad | 115 | vlan_tci = vlan->vlan_id; |
e267cb96 | 116 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority); |
b960a0ac | 117 | __vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci); |
1da177e4 LT |
118 | } |
119 | ||
6eacf8ad | 120 | skb->dev = vlan->real_dev; |
1a123a31 | 121 | len = skb->len; |
6eacf8ad AW |
122 | if (unlikely(netpoll_tx_running(dev))) |
123 | return vlan_netpoll_send_skb(vlan, skb); | |
124 | ||
1a123a31 ED |
125 | ret = dev_queue_xmit(skb); |
126 | ||
2d6c9ffc | 127 | if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { |
4af429d2 ED |
128 | struct vlan_pcpu_stats *stats; |
129 | ||
6eacf8ad | 130 | stats = this_cpu_ptr(vlan->vlan_pcpu_stats); |
4af429d2 | 131 | u64_stats_update_begin(&stats->syncp); |
09cca53c ED |
132 | u64_stats_inc(&stats->tx_packets); |
133 | u64_stats_add(&stats->tx_bytes, len); | |
307f73df | 134 | u64_stats_update_end(&stats->syncp); |
4af429d2 | 135 | } else { |
6eacf8ad | 136 | this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped); |
4af429d2 | 137 | } |
1a123a31 | 138 | |
cbbef5e1 | 139 | return ret; |
1da177e4 LT |
140 | } |
141 | ||
ef3eb3e5 | 142 | static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 143 | { |
18d3df3e PA |
144 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
145 | unsigned int max_mtu = real_dev->mtu; | |
146 | ||
147 | if (netif_reduces_vlan_mtu(real_dev)) | |
148 | max_mtu -= VLAN_HLEN; | |
149 | if (max_mtu < new_mtu) | |
1da177e4 LT |
150 | return -ERANGE; |
151 | ||
152 | dev->mtu = new_mtu; | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
c17d8874 | 157 | void vlan_dev_set_ingress_priority(const struct net_device *dev, |
9bb8582e | 158 | u32 skb_prio, u16 vlan_prio) |
1da177e4 | 159 | { |
7da82c06 | 160 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
b020cb48 PM |
161 | |
162 | if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio) | |
163 | vlan->nr_ingress_mappings--; | |
164 | else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio) | |
165 | vlan->nr_ingress_mappings++; | |
166 | ||
167 | vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio; | |
1da177e4 LT |
168 | } |
169 | ||
c17d8874 | 170 | int vlan_dev_set_egress_priority(const struct net_device *dev, |
9bb8582e | 171 | u32 skb_prio, u16 vlan_prio) |
1da177e4 | 172 | { |
7da82c06 | 173 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
1da177e4 LT |
174 | struct vlan_priority_tci_mapping *mp = NULL; |
175 | struct vlan_priority_tci_mapping *np; | |
05423b24 | 176 | u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK; |
122952fc | 177 | |
c17d8874 | 178 | /* See if a priority mapping exists.. */ |
b020cb48 | 179 | mp = vlan->egress_priority_map[skb_prio & 0xF]; |
c17d8874 PM |
180 | while (mp) { |
181 | if (mp->priority == skb_prio) { | |
b020cb48 PM |
182 | if (mp->vlan_qos && !vlan_qos) |
183 | vlan->nr_egress_mappings--; | |
184 | else if (!mp->vlan_qos && vlan_qos) | |
185 | vlan->nr_egress_mappings++; | |
186 | mp->vlan_qos = vlan_qos; | |
c17d8874 | 187 | return 0; |
1da177e4 | 188 | } |
c17d8874 | 189 | mp = mp->next; |
1da177e4 | 190 | } |
c17d8874 PM |
191 | |
192 | /* Create a new mapping then. */ | |
b020cb48 | 193 | mp = vlan->egress_priority_map[skb_prio & 0xF]; |
c17d8874 PM |
194 | np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL); |
195 | if (!np) | |
196 | return -ENOBUFS; | |
197 | ||
198 | np->next = mp; | |
199 | np->priority = skb_prio; | |
b020cb48 | 200 | np->vlan_qos = vlan_qos; |
3e3aac49 ED |
201 | /* Before inserting this element in hash table, make sure all its fields |
202 | * are committed to memory. | |
e267cb96 | 203 | * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask() |
3e3aac49 ED |
204 | */ |
205 | smp_wmb(); | |
b020cb48 PM |
206 | vlan->egress_priority_map[skb_prio & 0xF] = np; |
207 | if (vlan_qos) | |
208 | vlan->nr_egress_mappings++; | |
c17d8874 | 209 | return 0; |
1da177e4 LT |
210 | } |
211 | ||
84a2fba2 SL |
212 | /* Flags are defined in the vlan_flags enum in |
213 | * include/uapi/linux/if_vlan.h file. | |
214 | */ | |
b3ce0325 | 215 | int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask) |
1da177e4 | 216 | { |
7da82c06 | 217 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
b3ce0325 PM |
218 | u32 old_flags = vlan->flags; |
219 | ||
5e756593 | 220 | if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | |
8c8b3458 MM |
221 | VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP | |
222 | VLAN_FLAG_BRIDGE_BINDING)) | |
b3ce0325 PM |
223 | return -EINVAL; |
224 | ||
225 | vlan->flags = (old_flags & ~mask) | (flags & mask); | |
70c03b49 PM |
226 | |
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); | |
230 | else | |
231 | vlan_gvrp_request_leave(dev); | |
232 | } | |
86fbe9bb DW |
233 | |
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); | |
237 | else | |
238 | vlan_mvrp_request_leave(dev); | |
239 | } | |
b3ce0325 | 240 | return 0; |
1da177e4 LT |
241 | } |
242 | ||
9c153d38 | 243 | void vlan_dev_get_realdev_name(const struct net_device *dev, char *result, size_t size) |
1da177e4 | 244 | { |
9c153d38 | 245 | strscpy_pad(result, vlan_dev_priv(dev)->real_dev->name, size); |
1da177e4 LT |
246 | } |
247 | ||
308453aa MM |
248 | bool vlan_dev_inherit_address(struct net_device *dev, |
249 | struct net_device *real_dev) | |
250 | { | |
251 | if (dev->addr_assign_type != NET_ADDR_STOLEN) | |
252 | return false; | |
253 | ||
e35b8d7d | 254 | eth_hw_addr_set(dev, real_dev->dev_addr); |
308453aa MM |
255 | call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); |
256 | return true; | |
257 | } | |
258 | ||
ef3eb3e5 | 259 | static int vlan_dev_open(struct net_device *dev) |
1da177e4 | 260 | { |
7da82c06 | 261 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
8c979c26 PM |
262 | struct net_device *real_dev = vlan->real_dev; |
263 | int err; | |
264 | ||
5e756593 PM |
265 | if (!(real_dev->flags & IFF_UP) && |
266 | !(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) | |
1da177e4 LT |
267 | return -ENETDOWN; |
268 | ||
308453aa MM |
269 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr) && |
270 | !vlan_dev_inherit_address(dev, real_dev)) { | |
a748ee24 | 271 | err = dev_uc_add(real_dev, dev->dev_addr); |
8c979c26 | 272 | if (err < 0) |
89146504 | 273 | goto out; |
8c979c26 | 274 | } |
8c979c26 | 275 | |
89146504 WC |
276 | if (dev->flags & IFF_ALLMULTI) { |
277 | err = dev_set_allmulti(real_dev, 1); | |
278 | if (err < 0) | |
279 | goto del_unicast; | |
280 | } | |
281 | if (dev->flags & IFF_PROMISC) { | |
282 | err = dev_set_promiscuity(real_dev, 1); | |
283 | if (err < 0) | |
284 | goto clear_allmulti; | |
285 | } | |
286 | ||
07fc67be | 287 | ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr); |
6c78dcbd | 288 | |
70c03b49 PM |
289 | if (vlan->flags & VLAN_FLAG_GVRP) |
290 | vlan_gvrp_request_join(dev); | |
291 | ||
86fbe9bb DW |
292 | if (vlan->flags & VLAN_FLAG_MVRP) |
293 | vlan_mvrp_request_join(dev); | |
294 | ||
76052d8c MM |
295 | if (netif_carrier_ok(real_dev) && |
296 | !(vlan->flags & VLAN_FLAG_BRIDGE_BINDING)) | |
0ac820ee | 297 | netif_carrier_on(dev); |
1da177e4 | 298 | return 0; |
89146504 WC |
299 | |
300 | clear_allmulti: | |
301 | if (dev->flags & IFF_ALLMULTI) | |
302 | dev_set_allmulti(real_dev, -1); | |
303 | del_unicast: | |
53a2b3a1 | 304 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
a748ee24 | 305 | dev_uc_del(real_dev, dev->dev_addr); |
89146504 | 306 | out: |
adc667e8 | 307 | netif_carrier_off(dev); |
89146504 | 308 | return err; |
1da177e4 LT |
309 | } |
310 | ||
ef3eb3e5 | 311 | static int vlan_dev_stop(struct net_device *dev) |
1da177e4 | 312 | { |
7da82c06 | 313 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
70c03b49 PM |
314 | struct net_device *real_dev = vlan->real_dev; |
315 | ||
56addd6e | 316 | dev_mc_unsync(real_dev, dev); |
a748ee24 | 317 | dev_uc_unsync(real_dev, dev); |
6c78dcbd PM |
318 | if (dev->flags & IFF_ALLMULTI) |
319 | dev_set_allmulti(real_dev, -1); | |
320 | if (dev->flags & IFF_PROMISC) | |
321 | dev_set_promiscuity(real_dev, -1); | |
322 | ||
53a2b3a1 | 323 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
a748ee24 | 324 | dev_uc_del(real_dev, dev->dev_addr); |
8c979c26 | 325 | |
76052d8c MM |
326 | if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING)) |
327 | netif_carrier_off(dev); | |
1da177e4 LT |
328 | return 0; |
329 | } | |
330 | ||
ef3eb3e5 | 331 | static int vlan_dev_set_mac_address(struct net_device *dev, void *p) |
39aaac11 | 332 | { |
7da82c06 | 333 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
39aaac11 PM |
334 | struct sockaddr *addr = p; |
335 | int err; | |
336 | ||
337 | if (!is_valid_ether_addr(addr->sa_data)) | |
338 | return -EADDRNOTAVAIL; | |
339 | ||
340 | if (!(dev->flags & IFF_UP)) | |
341 | goto out; | |
342 | ||
53a2b3a1 | 343 | if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) { |
a748ee24 | 344 | err = dev_uc_add(real_dev, addr->sa_data); |
39aaac11 PM |
345 | if (err < 0) |
346 | return err; | |
347 | } | |
348 | ||
53a2b3a1 | 349 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
a748ee24 | 350 | dev_uc_del(real_dev, dev->dev_addr); |
39aaac11 PM |
351 | |
352 | out: | |
e35b8d7d | 353 | eth_hw_addr_set(dev, addr->sa_data); |
39aaac11 PM |
354 | return 0; |
355 | } | |
356 | ||
65c9fde1 MG |
357 | static int vlan_hwtstamp_get(struct net_device *dev, |
358 | struct kernel_hwtstamp_config *cfg) | |
359 | { | |
360 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; | |
361 | ||
362 | return generic_hwtstamp_get_lower(real_dev, cfg); | |
363 | } | |
364 | ||
365 | static int vlan_hwtstamp_set(struct net_device *dev, | |
366 | struct kernel_hwtstamp_config *cfg, | |
367 | struct netlink_ext_ack *extack) | |
368 | { | |
369 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; | |
370 | ||
371 | if (!net_eq(dev_net(dev), dev_net(real_dev))) | |
372 | return -EOPNOTSUPP; | |
373 | ||
374 | return generic_hwtstamp_set_lower(real_dev, cfg, extack); | |
375 | } | |
376 | ||
ef3eb3e5 | 377 | static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1da177e4 | 378 | { |
7da82c06 | 379 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
656299f7 | 380 | const struct net_device_ops *ops = real_dev->netdev_ops; |
1da177e4 LT |
381 | struct ifreq ifrr; |
382 | int err = -EOPNOTSUPP; | |
383 | ||
9c153d38 | 384 | strscpy_pad(ifrr.ifr_name, real_dev->name, IFNAMSIZ); |
1da177e4 LT |
385 | ifrr.ifr_ifru = ifr->ifr_ifru; |
386 | ||
2029cc2c | 387 | switch (cmd) { |
1da177e4 LT |
388 | case SIOCGMIIPHY: |
389 | case SIOCGMIIREG: | |
390 | case SIOCSMIIREG: | |
a7605370 AB |
391 | if (netif_device_present(real_dev) && ops->ndo_eth_ioctl) |
392 | err = ops->ndo_eth_ioctl(real_dev, &ifrr, cmd); | |
1da177e4 | 393 | break; |
1da177e4 LT |
394 | } |
395 | ||
122952fc | 396 | if (!err) |
1da177e4 LT |
397 | ifr->ifr_ifru = ifrr.ifr_ifru; |
398 | ||
399 | return err; | |
400 | } | |
401 | ||
cc883d16 FB |
402 | static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa) |
403 | { | |
7da82c06 | 404 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
cc883d16 FB |
405 | const struct net_device_ops *ops = real_dev->netdev_ops; |
406 | int err = 0; | |
407 | ||
408 | if (netif_device_present(real_dev) && ops->ndo_neigh_setup) | |
9d40bbda | 409 | err = ops->ndo_neigh_setup(real_dev, pa); |
cc883d16 FB |
410 | |
411 | return err; | |
412 | } | |
413 | ||
f4d5392e | 414 | #if IS_ENABLED(CONFIG_FCOE) |
b85daa53 VD |
415 | static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid, |
416 | struct scatterlist *sgl, unsigned int sgc) | |
417 | { | |
7da82c06 | 418 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b85daa53 VD |
419 | const struct net_device_ops *ops = real_dev->netdev_ops; |
420 | int rc = 0; | |
421 | ||
422 | if (ops->ndo_fcoe_ddp_setup) | |
423 | rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc); | |
424 | ||
425 | return rc; | |
426 | } | |
427 | ||
428 | static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid) | |
429 | { | |
7da82c06 | 430 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b85daa53 VD |
431 | const struct net_device_ops *ops = real_dev->netdev_ops; |
432 | int len = 0; | |
433 | ||
434 | if (ops->ndo_fcoe_ddp_done) | |
435 | len = ops->ndo_fcoe_ddp_done(real_dev, xid); | |
436 | ||
437 | return len; | |
438 | } | |
0af46d99 YZ |
439 | |
440 | static int vlan_dev_fcoe_enable(struct net_device *dev) | |
441 | { | |
7da82c06 | 442 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
0af46d99 YZ |
443 | const struct net_device_ops *ops = real_dev->netdev_ops; |
444 | int rc = -EINVAL; | |
445 | ||
446 | if (ops->ndo_fcoe_enable) | |
447 | rc = ops->ndo_fcoe_enable(real_dev); | |
448 | return rc; | |
449 | } | |
450 | ||
451 | static int vlan_dev_fcoe_disable(struct net_device *dev) | |
452 | { | |
7da82c06 | 453 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
0af46d99 YZ |
454 | const struct net_device_ops *ops = real_dev->netdev_ops; |
455 | int rc = -EINVAL; | |
456 | ||
457 | if (ops->ndo_fcoe_disable) | |
458 | rc = ops->ndo_fcoe_disable(real_dev); | |
459 | return rc; | |
460 | } | |
d6534799 | 461 | |
0a89eb92 CL |
462 | static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid, |
463 | struct scatterlist *sgl, unsigned int sgc) | |
d6534799 | 464 | { |
7da82c06 | 465 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
d6534799 | 466 | const struct net_device_ops *ops = real_dev->netdev_ops; |
0a89eb92 CL |
467 | int rc = 0; |
468 | ||
469 | if (ops->ndo_fcoe_ddp_target) | |
470 | rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc); | |
d6534799 | 471 | |
d6534799 YZ |
472 | return rc; |
473 | } | |
0a89eb92 | 474 | #endif |
4ea09c9c | 475 | |
0a89eb92 CL |
476 | #ifdef NETDEV_FCOE_WWNN |
477 | static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) | |
4ea09c9c | 478 | { |
7da82c06 | 479 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
4ea09c9c | 480 | const struct net_device_ops *ops = real_dev->netdev_ops; |
0a89eb92 | 481 | int rc = -EINVAL; |
4ea09c9c | 482 | |
0a89eb92 CL |
483 | if (ops->ndo_fcoe_get_wwn) |
484 | rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type); | |
4ea09c9c YZ |
485 | return rc; |
486 | } | |
b85daa53 VD |
487 | #endif |
488 | ||
ef3eb3e5 | 489 | static void vlan_dev_change_rx_flags(struct net_device *dev, int change) |
6c78dcbd | 490 | { |
7da82c06 | 491 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
6c78dcbd | 492 | |
deede2fa MK |
493 | if (dev->flags & IFF_UP) { |
494 | if (change & IFF_ALLMULTI) | |
495 | dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
496 | if (change & IFF_PROMISC) | |
497 | dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1); | |
498 | } | |
6c78dcbd PM |
499 | } |
500 | ||
e83a2ea8 | 501 | static void vlan_dev_set_rx_mode(struct net_device *vlan_dev) |
1da177e4 | 502 | { |
d38569ab VY |
503 | dev_mc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); |
504 | dev_uc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); | |
1da177e4 | 505 | } |
ef3eb3e5 | 506 | |
1a33e10e CW |
507 | /* |
508 | * vlan network devices have devices nesting below it, and are a special | |
509 | * "super class" of normal network devices; split their locks off into a | |
510 | * separate class since they always nest. | |
511 | */ | |
512 | static struct lock_class_key vlan_netdev_xmit_lock_key; | |
845e0ebb | 513 | static struct lock_class_key vlan_netdev_addr_lock_key; |
1a33e10e CW |
514 | |
515 | static void vlan_dev_set_lockdep_one(struct net_device *dev, | |
516 | struct netdev_queue *txq, | |
517 | void *unused) | |
518 | { | |
519 | lockdep_set_class(&txq->_xmit_lock, &vlan_netdev_xmit_lock_key); | |
520 | } | |
521 | ||
be74294f | 522 | static void vlan_dev_set_lockdep_class(struct net_device *dev) |
1a33e10e | 523 | { |
be74294f CW |
524 | lockdep_set_class(&dev->addr_list_lock, |
525 | &vlan_netdev_addr_lock_key); | |
1a33e10e CW |
526 | netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, NULL); |
527 | } | |
528 | ||
71854255 EBE |
529 | static __be16 vlan_parse_protocol(const struct sk_buff *skb) |
530 | { | |
531 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); | |
532 | ||
533 | return __vlan_get_protocol(skb, veth->h_vlan_proto, NULL); | |
534 | } | |
535 | ||
ef3eb3e5 PM |
536 | static const struct header_ops vlan_header_ops = { |
537 | .create = vlan_dev_hard_header, | |
ef3eb3e5 | 538 | .parse = eth_header_parse, |
71854255 | 539 | .parse_protocol = vlan_parse_protocol, |
ef3eb3e5 PM |
540 | }; |
541 | ||
2205369a DM |
542 | static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev, |
543 | unsigned short type, | |
544 | const void *daddr, const void *saddr, | |
545 | unsigned int len) | |
546 | { | |
547 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
548 | struct net_device *real_dev = vlan->real_dev; | |
549 | ||
dd38743b PB |
550 | if (saddr == NULL) |
551 | saddr = dev->dev_addr; | |
552 | ||
2205369a DM |
553 | return dev_hard_header(skb, real_dev, type, daddr, saddr, len); |
554 | } | |
555 | ||
556 | static const struct header_ops vlan_passthru_header_ops = { | |
557 | .create = vlan_passthru_hard_header, | |
2205369a | 558 | .parse = eth_header_parse, |
71854255 | 559 | .parse_protocol = vlan_parse_protocol, |
2205369a DM |
560 | }; |
561 | ||
e949b09b DG |
562 | static struct device_type vlan_type = { |
563 | .name = "vlan", | |
564 | }; | |
565 | ||
213b15ca | 566 | static const struct net_device_ops vlan_netdev_ops; |
f7d1b9f5 | 567 | |
ef3eb3e5 PM |
568 | static int vlan_dev_init(struct net_device *dev) |
569 | { | |
76052d8c MM |
570 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
571 | struct net_device *real_dev = vlan->real_dev; | |
ef3eb3e5 | 572 | |
adc667e8 JV |
573 | netif_carrier_off(dev); |
574 | ||
ef3eb3e5 | 575 | /* IFF_BROADCAST|IFF_MULTICAST; ??? */ |
194dbcc8 JF |
576 | dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | |
577 | IFF_MASTER | IFF_SLAVE); | |
ef3eb3e5 PM |
578 | dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) | |
579 | (1<<__LINK_STATE_DORMANT))) | | |
580 | (1<<__LINK_STATE_PRESENT); | |
581 | ||
76052d8c MM |
582 | if (vlan->flags & VLAN_FLAG_BRIDGE_BINDING) |
583 | dev->state |= (1 << __LINK_STATE_NOCARRIER); | |
584 | ||
a188222b | 585 | dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | |
53f6b708 | 586 | NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | |
7dad9937 | 587 | NETIF_F_GSO_ENCAP_ALL | |
53692b1d | 588 | NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC | |
62f2a3a4 MM |
589 | NETIF_F_ALL_FCOE; |
590 | ||
abff3e5e EH |
591 | if (real_dev->vlan_features & NETIF_F_HW_MACSEC) |
592 | dev->hw_features |= NETIF_F_HW_MACSEC; | |
593 | ||
88997e42 | 594 | dev->features |= dev->hw_features | NETIF_F_LLTX; |
6df6398f | 595 | netif_inherit_tso_max(dev, real_dev); |
2adb956b VY |
596 | if (dev->features & NETIF_F_VLAN_FEATURES) |
597 | netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n"); | |
598 | ||
8d463504 | 599 | dev->vlan_features = real_dev->vlan_features & ~NETIF_F_ALL_FCOE; |
7dad9937 | 600 | dev->hw_enc_features = vlan_tnl_features(real_dev); |
8b6912a5 | 601 | dev->mpls_features = real_dev->mpls_features; |
5fb13570 | 602 | |
ef3eb3e5 PM |
603 | /* ipv6 shared card related stuff */ |
604 | dev->dev_id = real_dev->dev_id; | |
605 | ||
308453aa | 606 | if (is_zero_ether_addr(dev->dev_addr)) { |
e35b8d7d | 607 | eth_hw_addr_set(dev, real_dev->dev_addr); |
308453aa MM |
608 | dev->addr_assign_type = NET_ADDR_STOLEN; |
609 | } | |
ef3eb3e5 PM |
610 | if (is_zero_ether_addr(dev->broadcast)) |
611 | memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len); | |
612 | ||
f4d5392e | 613 | #if IS_ENABLED(CONFIG_FCOE) |
b85daa53 VD |
614 | dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid; |
615 | #endif | |
616 | ||
d870bfb9 | 617 | dev->needed_headroom = real_dev->needed_headroom; |
76052d8c | 618 | if (vlan_hw_offload_capable(real_dev->features, vlan->vlan_proto)) { |
2205369a | 619 | dev->header_ops = &vlan_passthru_header_ops; |
ef3eb3e5 | 620 | dev->hard_header_len = real_dev->hard_header_len; |
ef3eb3e5 PM |
621 | } else { |
622 | dev->header_ops = &vlan_header_ops; | |
623 | dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; | |
ef3eb3e5 PM |
624 | } |
625 | ||
213b15ca | 626 | dev->netdev_ops = &vlan_netdev_ops; |
636e19a3 | 627 | |
e949b09b DG |
628 | SET_NETDEV_DEVTYPE(dev, &vlan_type); |
629 | ||
be74294f | 630 | vlan_dev_set_lockdep_class(dev); |
1a33e10e | 631 | |
76052d8c MM |
632 | vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); |
633 | if (!vlan->vlan_pcpu_stats) | |
9793241f ED |
634 | return -ENOMEM; |
635 | ||
01d9cc2d | 636 | /* Get vlan's reference to real_dev */ |
d62607c3 | 637 | netdev_hold(real_dev, &vlan->dev_tracker, GFP_KERNEL); |
01d9cc2d | 638 | |
ef3eb3e5 PM |
639 | return 0; |
640 | } | |
641 | ||
9bbd917e | 642 | /* Note: this function might be called multiple times for the same device. */ |
37aa50c5 | 643 | void vlan_dev_free_egress_priority(const struct net_device *dev) |
23556323 PE |
644 | { |
645 | struct vlan_priority_tci_mapping *pm; | |
7da82c06 | 646 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
23556323 PE |
647 | int i; |
648 | ||
649 | for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) { | |
650 | while ((pm = vlan->egress_priority_map[i]) != NULL) { | |
651 | vlan->egress_priority_map[i] = pm->next; | |
652 | kfree(pm); | |
653 | } | |
654 | } | |
655 | } | |
656 | ||
37aa50c5 XL |
657 | static void vlan_dev_uninit(struct net_device *dev) |
658 | { | |
659 | vlan_dev_free_egress_priority(dev); | |
660 | } | |
661 | ||
c8f44aff MM |
662 | static netdev_features_t vlan_dev_fix_features(struct net_device *dev, |
663 | netdev_features_t features) | |
8a0427bb | 664 | { |
7da82c06 | 665 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b29d3145 | 666 | netdev_features_t old_features = features; |
8403debe | 667 | netdev_features_t lower_features; |
8a0427bb | 668 | |
8403debe VY |
669 | lower_features = netdev_intersect_features((real_dev->vlan_features | |
670 | NETIF_F_RXCSUM), | |
671 | real_dev->features); | |
712ae51a | 672 | |
8403debe VY |
673 | /* Add HW_CSUM setting to preserve user ability to control |
674 | * checksum offload on the vlan device. | |
675 | */ | |
676 | if (lower_features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) | |
677 | lower_features |= NETIF_F_HW_CSUM; | |
678 | features = netdev_intersect_features(features, lower_features); | |
53f6b708 | 679 | features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE); |
f0a619cc | 680 | features |= NETIF_F_LLTX; |
8a0427bb MM |
681 | |
682 | return features; | |
683 | } | |
684 | ||
57709798 DD |
685 | static int vlan_ethtool_get_link_ksettings(struct net_device *dev, |
686 | struct ethtool_link_ksettings *cmd) | |
b3020061 | 687 | { |
7da82c06 | 688 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
4bc71cb9 | 689 | |
57709798 | 690 | return __ethtool_get_link_ksettings(vlan->real_dev, cmd); |
b3020061 SH |
691 | } |
692 | ||
693 | static void vlan_ethtool_get_drvinfo(struct net_device *dev, | |
694 | struct ethtool_drvinfo *info) | |
695 | { | |
bb4d15df WS |
696 | strscpy(info->driver, vlan_fullname, sizeof(info->driver)); |
697 | strscpy(info->version, vlan_version, sizeof(info->version)); | |
698 | strscpy(info->fw_version, "N/A", sizeof(info->fw_version)); | |
b3020061 SH |
699 | } |
700 | ||
37dd9255 RC |
701 | static int vlan_ethtool_get_ts_info(struct net_device *dev, |
702 | struct ethtool_ts_info *info) | |
703 | { | |
704 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
705 | const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops; | |
ec1d8ccb | 706 | struct phy_device *phydev = vlan->real_dev->phydev; |
37dd9255 | 707 | |
dfe6d68f RC |
708 | if (phy_has_tsinfo(phydev)) { |
709 | return phy_ts_info(phydev, info); | |
ec1d8ccb | 710 | } else if (ops->get_ts_info) { |
37dd9255 RC |
711 | return ops->get_ts_info(vlan->real_dev, info); |
712 | } else { | |
713 | info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | | |
714 | SOF_TIMESTAMPING_SOFTWARE; | |
715 | info->phc_index = -1; | |
716 | } | |
717 | ||
718 | return 0; | |
719 | } | |
720 | ||
bc1f4470 | 721 | static void vlan_dev_get_stats64(struct net_device *dev, |
722 | struct rtnl_link_stats64 *stats) | |
9793241f | 723 | { |
5a4ae5f6 LR |
724 | struct vlan_pcpu_stats *p; |
725 | u32 rx_errors = 0, tx_dropped = 0; | |
726 | int i; | |
9793241f | 727 | |
5a4ae5f6 LR |
728 | for_each_possible_cpu(i) { |
729 | u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes; | |
730 | unsigned int start; | |
731 | ||
732 | p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i); | |
733 | do { | |
d120d1a6 | 734 | start = u64_stats_fetch_begin(&p->syncp); |
09cca53c ED |
735 | rxpackets = u64_stats_read(&p->rx_packets); |
736 | rxbytes = u64_stats_read(&p->rx_bytes); | |
737 | rxmulticast = u64_stats_read(&p->rx_multicast); | |
738 | txpackets = u64_stats_read(&p->tx_packets); | |
739 | txbytes = u64_stats_read(&p->tx_bytes); | |
d120d1a6 | 740 | } while (u64_stats_fetch_retry(&p->syncp, start)); |
5a4ae5f6 LR |
741 | |
742 | stats->rx_packets += rxpackets; | |
743 | stats->rx_bytes += rxbytes; | |
744 | stats->multicast += rxmulticast; | |
745 | stats->tx_packets += txpackets; | |
746 | stats->tx_bytes += txbytes; | |
747 | /* rx_errors & tx_dropped are u32 */ | |
09cca53c ED |
748 | rx_errors += READ_ONCE(p->rx_errors); |
749 | tx_dropped += READ_ONCE(p->tx_dropped); | |
9793241f | 750 | } |
5a4ae5f6 LR |
751 | stats->rx_errors = rx_errors; |
752 | stats->tx_dropped = tx_dropped; | |
9793241f ED |
753 | } |
754 | ||
6d4cdf47 | 755 | #ifdef CONFIG_NET_POLL_CONTROLLER |
de93cb2e | 756 | static void vlan_dev_poll_controller(struct net_device *dev) |
6d4cdf47 BL |
757 | { |
758 | return; | |
759 | } | |
760 | ||
a8779ec1 | 761 | static int vlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo) |
6d4cdf47 | 762 | { |
f3da3893 AW |
763 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
764 | struct net_device *real_dev = vlan->real_dev; | |
6d4cdf47 BL |
765 | struct netpoll *netpoll; |
766 | int err = 0; | |
767 | ||
a8779ec1 | 768 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); |
6d4cdf47 BL |
769 | err = -ENOMEM; |
770 | if (!netpoll) | |
771 | goto out; | |
772 | ||
a8779ec1 | 773 | err = __netpoll_setup(netpoll, real_dev); |
6d4cdf47 BL |
774 | if (err) { |
775 | kfree(netpoll); | |
776 | goto out; | |
777 | } | |
778 | ||
f3da3893 | 779 | vlan->netpoll = netpoll; |
6d4cdf47 BL |
780 | |
781 | out: | |
782 | return err; | |
783 | } | |
784 | ||
de93cb2e | 785 | static void vlan_dev_netpoll_cleanup(struct net_device *dev) |
6d4cdf47 | 786 | { |
f3da3893 AW |
787 | struct vlan_dev_priv *vlan= vlan_dev_priv(dev); |
788 | struct netpoll *netpoll = vlan->netpoll; | |
6d4cdf47 BL |
789 | |
790 | if (!netpoll) | |
791 | return; | |
792 | ||
f3da3893 | 793 | vlan->netpoll = NULL; |
c9fbd71f | 794 | __netpoll_free(netpoll); |
6d4cdf47 BL |
795 | } |
796 | #endif /* CONFIG_NET_POLL_CONTROLLER */ | |
797 | ||
2dbf6b50 ND |
798 | static int vlan_dev_get_iflink(const struct net_device *dev) |
799 | { | |
800 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; | |
801 | ||
802 | return real_dev->ifindex; | |
803 | } | |
804 | ||
e4417d69 PNA |
805 | static int vlan_dev_fill_forward_path(struct net_device_path_ctx *ctx, |
806 | struct net_device_path *path) | |
807 | { | |
808 | struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev); | |
809 | ||
810 | path->type = DEV_PATH_VLAN; | |
811 | path->encap.id = vlan->vlan_id; | |
812 | path->encap.proto = vlan->vlan_proto; | |
813 | path->dev = ctx->dev; | |
814 | ctx->dev = vlan->real_dev; | |
bcf2766b FF |
815 | if (ctx->num_vlans >= ARRAY_SIZE(ctx->vlan)) |
816 | return -ENOSPC; | |
817 | ||
818 | ctx->vlan[ctx->num_vlans].id = vlan->vlan_id; | |
819 | ctx->vlan[ctx->num_vlans].proto = vlan->vlan_proto; | |
820 | ctx->num_vlans++; | |
e4417d69 PNA |
821 | |
822 | return 0; | |
823 | } | |
824 | ||
abff3e5e EH |
825 | #if IS_ENABLED(CONFIG_MACSEC) |
826 | ||
827 | static const struct macsec_ops *vlan_get_macsec_ops(const struct macsec_context *ctx) | |
828 | { | |
829 | return vlan_dev_priv(ctx->netdev)->real_dev->macsec_ops; | |
830 | } | |
831 | ||
832 | static int vlan_macsec_offload(int (* const func)(struct macsec_context *), | |
833 | struct macsec_context *ctx) | |
834 | { | |
835 | if (unlikely(!func)) | |
836 | return 0; | |
837 | ||
838 | return (*func)(ctx); | |
839 | } | |
840 | ||
841 | static int vlan_macsec_dev_open(struct macsec_context *ctx) | |
842 | { | |
843 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
844 | ||
845 | if (!ops) | |
846 | return -EOPNOTSUPP; | |
847 | ||
848 | return vlan_macsec_offload(ops->mdo_dev_open, ctx); | |
849 | } | |
850 | ||
851 | static int vlan_macsec_dev_stop(struct macsec_context *ctx) | |
852 | { | |
853 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
854 | ||
855 | if (!ops) | |
856 | return -EOPNOTSUPP; | |
857 | ||
858 | return vlan_macsec_offload(ops->mdo_dev_stop, ctx); | |
859 | } | |
860 | ||
861 | static int vlan_macsec_add_secy(struct macsec_context *ctx) | |
862 | { | |
863 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
864 | ||
865 | if (!ops) | |
866 | return -EOPNOTSUPP; | |
867 | ||
868 | return vlan_macsec_offload(ops->mdo_add_secy, ctx); | |
869 | } | |
870 | ||
871 | static int vlan_macsec_upd_secy(struct macsec_context *ctx) | |
872 | { | |
873 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
874 | ||
875 | if (!ops) | |
876 | return -EOPNOTSUPP; | |
877 | ||
878 | return vlan_macsec_offload(ops->mdo_upd_secy, ctx); | |
879 | } | |
880 | ||
881 | static int vlan_macsec_del_secy(struct macsec_context *ctx) | |
882 | { | |
883 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
884 | ||
885 | if (!ops) | |
886 | return -EOPNOTSUPP; | |
887 | ||
888 | return vlan_macsec_offload(ops->mdo_del_secy, ctx); | |
889 | } | |
890 | ||
891 | static int vlan_macsec_add_rxsc(struct macsec_context *ctx) | |
892 | { | |
893 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
894 | ||
895 | if (!ops) | |
896 | return -EOPNOTSUPP; | |
897 | ||
898 | return vlan_macsec_offload(ops->mdo_add_rxsc, ctx); | |
899 | } | |
900 | ||
901 | static int vlan_macsec_upd_rxsc(struct macsec_context *ctx) | |
902 | { | |
903 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
904 | ||
905 | if (!ops) | |
906 | return -EOPNOTSUPP; | |
907 | ||
908 | return vlan_macsec_offload(ops->mdo_upd_rxsc, ctx); | |
909 | } | |
910 | ||
911 | static int vlan_macsec_del_rxsc(struct macsec_context *ctx) | |
912 | { | |
913 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
914 | ||
915 | if (!ops) | |
916 | return -EOPNOTSUPP; | |
917 | ||
918 | return vlan_macsec_offload(ops->mdo_del_rxsc, ctx); | |
919 | } | |
920 | ||
921 | static int vlan_macsec_add_rxsa(struct macsec_context *ctx) | |
922 | { | |
923 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
924 | ||
925 | if (!ops) | |
926 | return -EOPNOTSUPP; | |
927 | ||
928 | return vlan_macsec_offload(ops->mdo_add_rxsa, ctx); | |
929 | } | |
930 | ||
931 | static int vlan_macsec_upd_rxsa(struct macsec_context *ctx) | |
932 | { | |
933 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
934 | ||
935 | if (!ops) | |
936 | return -EOPNOTSUPP; | |
937 | ||
938 | return vlan_macsec_offload(ops->mdo_upd_rxsa, ctx); | |
939 | } | |
940 | ||
941 | static int vlan_macsec_del_rxsa(struct macsec_context *ctx) | |
942 | { | |
943 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
944 | ||
945 | if (!ops) | |
946 | return -EOPNOTSUPP; | |
947 | ||
948 | return vlan_macsec_offload(ops->mdo_del_rxsa, ctx); | |
949 | } | |
950 | ||
951 | static int vlan_macsec_add_txsa(struct macsec_context *ctx) | |
952 | { | |
953 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
954 | ||
955 | if (!ops) | |
956 | return -EOPNOTSUPP; | |
957 | ||
958 | return vlan_macsec_offload(ops->mdo_add_txsa, ctx); | |
959 | } | |
960 | ||
961 | static int vlan_macsec_upd_txsa(struct macsec_context *ctx) | |
962 | { | |
963 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
964 | ||
965 | if (!ops) | |
966 | return -EOPNOTSUPP; | |
967 | ||
968 | return vlan_macsec_offload(ops->mdo_upd_txsa, ctx); | |
969 | } | |
970 | ||
971 | static int vlan_macsec_del_txsa(struct macsec_context *ctx) | |
972 | { | |
973 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
974 | ||
975 | if (!ops) | |
976 | return -EOPNOTSUPP; | |
977 | ||
978 | return vlan_macsec_offload(ops->mdo_del_txsa, ctx); | |
979 | } | |
980 | ||
981 | static int vlan_macsec_get_dev_stats(struct macsec_context *ctx) | |
982 | { | |
983 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
984 | ||
985 | if (!ops) | |
986 | return -EOPNOTSUPP; | |
987 | ||
988 | return vlan_macsec_offload(ops->mdo_get_dev_stats, ctx); | |
989 | } | |
990 | ||
991 | static int vlan_macsec_get_tx_sc_stats(struct macsec_context *ctx) | |
992 | { | |
993 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
994 | ||
995 | if (!ops) | |
996 | return -EOPNOTSUPP; | |
997 | ||
998 | return vlan_macsec_offload(ops->mdo_get_tx_sc_stats, ctx); | |
999 | } | |
1000 | ||
1001 | static int vlan_macsec_get_tx_sa_stats(struct macsec_context *ctx) | |
1002 | { | |
1003 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
1004 | ||
1005 | if (!ops) | |
1006 | return -EOPNOTSUPP; | |
1007 | ||
1008 | return vlan_macsec_offload(ops->mdo_get_tx_sa_stats, ctx); | |
1009 | } | |
1010 | ||
1011 | static int vlan_macsec_get_rx_sc_stats(struct macsec_context *ctx) | |
1012 | { | |
1013 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
1014 | ||
1015 | if (!ops) | |
1016 | return -EOPNOTSUPP; | |
1017 | ||
1018 | return vlan_macsec_offload(ops->mdo_get_rx_sc_stats, ctx); | |
1019 | } | |
1020 | ||
1021 | static int vlan_macsec_get_rx_sa_stats(struct macsec_context *ctx) | |
1022 | { | |
1023 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
1024 | ||
1025 | if (!ops) | |
1026 | return -EOPNOTSUPP; | |
1027 | ||
1028 | return vlan_macsec_offload(ops->mdo_get_rx_sa_stats, ctx); | |
1029 | } | |
1030 | ||
1031 | static const struct macsec_ops macsec_offload_ops = { | |
1032 | /* Device wide */ | |
1033 | .mdo_dev_open = vlan_macsec_dev_open, | |
1034 | .mdo_dev_stop = vlan_macsec_dev_stop, | |
1035 | /* SecY */ | |
1036 | .mdo_add_secy = vlan_macsec_add_secy, | |
1037 | .mdo_upd_secy = vlan_macsec_upd_secy, | |
1038 | .mdo_del_secy = vlan_macsec_del_secy, | |
1039 | /* Security channels */ | |
1040 | .mdo_add_rxsc = vlan_macsec_add_rxsc, | |
1041 | .mdo_upd_rxsc = vlan_macsec_upd_rxsc, | |
1042 | .mdo_del_rxsc = vlan_macsec_del_rxsc, | |
1043 | /* Security associations */ | |
1044 | .mdo_add_rxsa = vlan_macsec_add_rxsa, | |
1045 | .mdo_upd_rxsa = vlan_macsec_upd_rxsa, | |
1046 | .mdo_del_rxsa = vlan_macsec_del_rxsa, | |
1047 | .mdo_add_txsa = vlan_macsec_add_txsa, | |
1048 | .mdo_upd_txsa = vlan_macsec_upd_txsa, | |
1049 | .mdo_del_txsa = vlan_macsec_del_txsa, | |
1050 | /* Statistics */ | |
1051 | .mdo_get_dev_stats = vlan_macsec_get_dev_stats, | |
1052 | .mdo_get_tx_sc_stats = vlan_macsec_get_tx_sc_stats, | |
1053 | .mdo_get_tx_sa_stats = vlan_macsec_get_tx_sa_stats, | |
1054 | .mdo_get_rx_sc_stats = vlan_macsec_get_rx_sc_stats, | |
1055 | .mdo_get_rx_sa_stats = vlan_macsec_get_rx_sa_stats, | |
1056 | }; | |
1057 | ||
1058 | #endif | |
1059 | ||
75b8846a | 1060 | static const struct ethtool_ops vlan_ethtool_ops = { |
57709798 | 1061 | .get_link_ksettings = vlan_ethtool_get_link_ksettings, |
b3020061 | 1062 | .get_drvinfo = vlan_ethtool_get_drvinfo, |
75b8846a | 1063 | .get_link = ethtool_op_get_link, |
37dd9255 | 1064 | .get_ts_info = vlan_ethtool_get_ts_info, |
75b8846a PM |
1065 | }; |
1066 | ||
656299f7 SH |
1067 | static const struct net_device_ops vlan_netdev_ops = { |
1068 | .ndo_change_mtu = vlan_dev_change_mtu, | |
1069 | .ndo_init = vlan_dev_init, | |
1070 | .ndo_uninit = vlan_dev_uninit, | |
1071 | .ndo_open = vlan_dev_open, | |
1072 | .ndo_stop = vlan_dev_stop, | |
669d3e0b VD |
1073 | .ndo_start_xmit = vlan_dev_hard_start_xmit, |
1074 | .ndo_validate_addr = eth_validate_addr, | |
1075 | .ndo_set_mac_address = vlan_dev_set_mac_address, | |
1076 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, | |
669d3e0b | 1077 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
a7605370 | 1078 | .ndo_eth_ioctl = vlan_dev_ioctl, |
669d3e0b | 1079 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
9618e2ff | 1080 | .ndo_get_stats64 = vlan_dev_get_stats64, |
f4d5392e | 1081 | #if IS_ENABLED(CONFIG_FCOE) |
669d3e0b VD |
1082 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
1083 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, | |
1084 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, | |
1085 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, | |
4ea09c9c | 1086 | .ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target, |
6d4cdf47 | 1087 | #endif |
0a89eb92 CL |
1088 | #ifdef NETDEV_FCOE_WWNN |
1089 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, | |
1090 | #endif | |
6d4cdf47 BL |
1091 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1092 | .ndo_poll_controller = vlan_dev_poll_controller, | |
1093 | .ndo_netpoll_setup = vlan_dev_netpoll_setup, | |
1094 | .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup, | |
669d3e0b | 1095 | #endif |
8a0427bb | 1096 | .ndo_fix_features = vlan_dev_fix_features, |
2dbf6b50 | 1097 | .ndo_get_iflink = vlan_dev_get_iflink, |
e4417d69 | 1098 | .ndo_fill_forward_path = vlan_dev_fill_forward_path, |
65c9fde1 MG |
1099 | .ndo_hwtstamp_get = vlan_hwtstamp_get, |
1100 | .ndo_hwtstamp_set = vlan_hwtstamp_set, | |
669d3e0b VD |
1101 | }; |
1102 | ||
a48e5faf ED |
1103 | static void vlan_dev_free(struct net_device *dev) |
1104 | { | |
1105 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
1106 | ||
1107 | free_percpu(vlan->vlan_pcpu_stats); | |
1108 | vlan->vlan_pcpu_stats = NULL; | |
6a47cdc3 XL |
1109 | |
1110 | /* Get rid of the vlan's reference to real_dev */ | |
d62607c3 | 1111 | netdev_put(vlan->real_dev, &vlan->dev_tracker); |
a48e5faf ED |
1112 | } |
1113 | ||
ef3eb3e5 PM |
1114 | void vlan_setup(struct net_device *dev) |
1115 | { | |
1116 | ether_setup(dev); | |
1117 | ||
2e659c05 | 1118 | dev->priv_flags |= IFF_802_1Q_VLAN | IFF_NO_QUEUE; |
e817af27 | 1119 | dev->priv_flags |= IFF_UNICAST_FLT; |
02875878 ED |
1120 | dev->priv_flags &= ~IFF_TX_SKB_SHARING; |
1121 | netif_keep_dst(dev); | |
ef3eb3e5 | 1122 | |
656299f7 | 1123 | dev->netdev_ops = &vlan_netdev_ops; |
cf124db5 DM |
1124 | dev->needs_free_netdev = true; |
1125 | dev->priv_destructor = vlan_dev_free; | |
75b8846a | 1126 | dev->ethtool_ops = &vlan_ethtool_ops; |
ef3eb3e5 | 1127 | |
abff3e5e EH |
1128 | #if IS_ENABLED(CONFIG_MACSEC) |
1129 | dev->macsec_ops = &macsec_offload_ops; | |
1130 | #endif | |
91572088 JW |
1131 | dev->min_mtu = 0; |
1132 | dev->max_mtu = ETH_MAX_MTU; | |
1133 | ||
423049ab | 1134 | eth_zero_addr(dev->broadcast); |
ef3eb3e5 | 1135 | } |