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 | ||
1eb2cded | 152 | WRITE_ONCE(dev->mtu, new_mtu); |
1da177e4 LT |
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 | |
71854255 EBE |
507 | static __be16 vlan_parse_protocol(const struct sk_buff *skb) |
508 | { | |
509 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); | |
510 | ||
511 | return __vlan_get_protocol(skb, veth->h_vlan_proto, NULL); | |
512 | } | |
513 | ||
ef3eb3e5 PM |
514 | static const struct header_ops vlan_header_ops = { |
515 | .create = vlan_dev_hard_header, | |
ef3eb3e5 | 516 | .parse = eth_header_parse, |
71854255 | 517 | .parse_protocol = vlan_parse_protocol, |
ef3eb3e5 PM |
518 | }; |
519 | ||
2205369a DM |
520 | static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev, |
521 | unsigned short type, | |
522 | const void *daddr, const void *saddr, | |
523 | unsigned int len) | |
524 | { | |
525 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
526 | struct net_device *real_dev = vlan->real_dev; | |
527 | ||
dd38743b PB |
528 | if (saddr == NULL) |
529 | saddr = dev->dev_addr; | |
530 | ||
2205369a DM |
531 | return dev_hard_header(skb, real_dev, type, daddr, saddr, len); |
532 | } | |
533 | ||
534 | static const struct header_ops vlan_passthru_header_ops = { | |
535 | .create = vlan_passthru_hard_header, | |
2205369a | 536 | .parse = eth_header_parse, |
71854255 | 537 | .parse_protocol = vlan_parse_protocol, |
2205369a DM |
538 | }; |
539 | ||
7ae9d342 | 540 | static const struct device_type vlan_type = { |
e949b09b DG |
541 | .name = "vlan", |
542 | }; | |
543 | ||
213b15ca | 544 | static const struct net_device_ops vlan_netdev_ops; |
f7d1b9f5 | 545 | |
ef3eb3e5 PM |
546 | static int vlan_dev_init(struct net_device *dev) |
547 | { | |
76052d8c MM |
548 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
549 | struct net_device *real_dev = vlan->real_dev; | |
ef3eb3e5 | 550 | |
adc667e8 JV |
551 | netif_carrier_off(dev); |
552 | ||
ef3eb3e5 | 553 | /* IFF_BROADCAST|IFF_MULTICAST; ??? */ |
194dbcc8 JF |
554 | dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | |
555 | IFF_MASTER | IFF_SLAVE); | |
ef3eb3e5 PM |
556 | dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) | |
557 | (1<<__LINK_STATE_DORMANT))) | | |
558 | (1<<__LINK_STATE_PRESENT); | |
559 | ||
76052d8c MM |
560 | if (vlan->flags & VLAN_FLAG_BRIDGE_BINDING) |
561 | dev->state |= (1 << __LINK_STATE_NOCARRIER); | |
562 | ||
a188222b | 563 | dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | |
53f6b708 | 564 | NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | |
7dad9937 | 565 | NETIF_F_GSO_ENCAP_ALL | |
53692b1d | 566 | NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC | |
62f2a3a4 MM |
567 | NETIF_F_ALL_FCOE; |
568 | ||
abff3e5e EH |
569 | if (real_dev->vlan_features & NETIF_F_HW_MACSEC) |
570 | dev->hw_features |= NETIF_F_HW_MACSEC; | |
571 | ||
88997e42 | 572 | dev->features |= dev->hw_features | NETIF_F_LLTX; |
6df6398f | 573 | netif_inherit_tso_max(dev, real_dev); |
2adb956b VY |
574 | if (dev->features & NETIF_F_VLAN_FEATURES) |
575 | netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n"); | |
576 | ||
8d463504 | 577 | dev->vlan_features = real_dev->vlan_features & ~NETIF_F_ALL_FCOE; |
7dad9937 | 578 | dev->hw_enc_features = vlan_tnl_features(real_dev); |
8b6912a5 | 579 | dev->mpls_features = real_dev->mpls_features; |
5fb13570 | 580 | |
ef3eb3e5 PM |
581 | /* ipv6 shared card related stuff */ |
582 | dev->dev_id = real_dev->dev_id; | |
583 | ||
308453aa | 584 | if (is_zero_ether_addr(dev->dev_addr)) { |
e35b8d7d | 585 | eth_hw_addr_set(dev, real_dev->dev_addr); |
308453aa MM |
586 | dev->addr_assign_type = NET_ADDR_STOLEN; |
587 | } | |
ef3eb3e5 PM |
588 | if (is_zero_ether_addr(dev->broadcast)) |
589 | memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len); | |
590 | ||
f4d5392e | 591 | #if IS_ENABLED(CONFIG_FCOE) |
b85daa53 VD |
592 | dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid; |
593 | #endif | |
594 | ||
d870bfb9 | 595 | dev->needed_headroom = real_dev->needed_headroom; |
76052d8c | 596 | if (vlan_hw_offload_capable(real_dev->features, vlan->vlan_proto)) { |
2205369a | 597 | dev->header_ops = &vlan_passthru_header_ops; |
ef3eb3e5 | 598 | dev->hard_header_len = real_dev->hard_header_len; |
ef3eb3e5 PM |
599 | } else { |
600 | dev->header_ops = &vlan_header_ops; | |
601 | dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; | |
ef3eb3e5 PM |
602 | } |
603 | ||
213b15ca | 604 | dev->netdev_ops = &vlan_netdev_ops; |
636e19a3 | 605 | |
e949b09b DG |
606 | SET_NETDEV_DEVTYPE(dev, &vlan_type); |
607 | ||
9a3c93af | 608 | netdev_lockdep_set_classes(dev); |
1a33e10e | 609 | |
76052d8c MM |
610 | vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); |
611 | if (!vlan->vlan_pcpu_stats) | |
9793241f ED |
612 | return -ENOMEM; |
613 | ||
01d9cc2d | 614 | /* Get vlan's reference to real_dev */ |
d62607c3 | 615 | netdev_hold(real_dev, &vlan->dev_tracker, GFP_KERNEL); |
01d9cc2d | 616 | |
ef3eb3e5 PM |
617 | return 0; |
618 | } | |
619 | ||
9bbd917e | 620 | /* Note: this function might be called multiple times for the same device. */ |
37aa50c5 | 621 | void vlan_dev_free_egress_priority(const struct net_device *dev) |
23556323 PE |
622 | { |
623 | struct vlan_priority_tci_mapping *pm; | |
7da82c06 | 624 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
23556323 PE |
625 | int i; |
626 | ||
627 | for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) { | |
628 | while ((pm = vlan->egress_priority_map[i]) != NULL) { | |
629 | vlan->egress_priority_map[i] = pm->next; | |
630 | kfree(pm); | |
631 | } | |
632 | } | |
633 | } | |
634 | ||
37aa50c5 XL |
635 | static void vlan_dev_uninit(struct net_device *dev) |
636 | { | |
637 | vlan_dev_free_egress_priority(dev); | |
638 | } | |
639 | ||
c8f44aff MM |
640 | static netdev_features_t vlan_dev_fix_features(struct net_device *dev, |
641 | netdev_features_t features) | |
8a0427bb | 642 | { |
7da82c06 | 643 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b29d3145 | 644 | netdev_features_t old_features = features; |
8403debe | 645 | netdev_features_t lower_features; |
8a0427bb | 646 | |
8403debe VY |
647 | lower_features = netdev_intersect_features((real_dev->vlan_features | |
648 | NETIF_F_RXCSUM), | |
649 | real_dev->features); | |
712ae51a | 650 | |
8403debe VY |
651 | /* Add HW_CSUM setting to preserve user ability to control |
652 | * checksum offload on the vlan device. | |
653 | */ | |
654 | if (lower_features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) | |
655 | lower_features |= NETIF_F_HW_CSUM; | |
656 | features = netdev_intersect_features(features, lower_features); | |
53f6b708 | 657 | features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE); |
f0a619cc | 658 | features |= NETIF_F_LLTX; |
8a0427bb MM |
659 | |
660 | return features; | |
661 | } | |
662 | ||
57709798 DD |
663 | static int vlan_ethtool_get_link_ksettings(struct net_device *dev, |
664 | struct ethtool_link_ksettings *cmd) | |
b3020061 | 665 | { |
7da82c06 | 666 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
4bc71cb9 | 667 | |
57709798 | 668 | return __ethtool_get_link_ksettings(vlan->real_dev, cmd); |
b3020061 SH |
669 | } |
670 | ||
671 | static void vlan_ethtool_get_drvinfo(struct net_device *dev, | |
672 | struct ethtool_drvinfo *info) | |
673 | { | |
bb4d15df WS |
674 | strscpy(info->driver, vlan_fullname, sizeof(info->driver)); |
675 | strscpy(info->version, vlan_version, sizeof(info->version)); | |
676 | strscpy(info->fw_version, "N/A", sizeof(info->fw_version)); | |
b3020061 SH |
677 | } |
678 | ||
37dd9255 RC |
679 | static int vlan_ethtool_get_ts_info(struct net_device *dev, |
680 | struct ethtool_ts_info *info) | |
681 | { | |
682 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
b8768dc4 | 683 | return ethtool_get_ts_info_by_layer(vlan->real_dev, info); |
37dd9255 RC |
684 | } |
685 | ||
bc1f4470 | 686 | static void vlan_dev_get_stats64(struct net_device *dev, |
687 | struct rtnl_link_stats64 *stats) | |
9793241f | 688 | { |
5a4ae5f6 LR |
689 | struct vlan_pcpu_stats *p; |
690 | u32 rx_errors = 0, tx_dropped = 0; | |
691 | int i; | |
9793241f | 692 | |
5a4ae5f6 LR |
693 | for_each_possible_cpu(i) { |
694 | u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes; | |
695 | unsigned int start; | |
696 | ||
697 | p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i); | |
698 | do { | |
d120d1a6 | 699 | start = u64_stats_fetch_begin(&p->syncp); |
09cca53c ED |
700 | rxpackets = u64_stats_read(&p->rx_packets); |
701 | rxbytes = u64_stats_read(&p->rx_bytes); | |
702 | rxmulticast = u64_stats_read(&p->rx_multicast); | |
703 | txpackets = u64_stats_read(&p->tx_packets); | |
704 | txbytes = u64_stats_read(&p->tx_bytes); | |
d120d1a6 | 705 | } while (u64_stats_fetch_retry(&p->syncp, start)); |
5a4ae5f6 LR |
706 | |
707 | stats->rx_packets += rxpackets; | |
708 | stats->rx_bytes += rxbytes; | |
709 | stats->multicast += rxmulticast; | |
710 | stats->tx_packets += txpackets; | |
711 | stats->tx_bytes += txbytes; | |
712 | /* rx_errors & tx_dropped are u32 */ | |
09cca53c ED |
713 | rx_errors += READ_ONCE(p->rx_errors); |
714 | tx_dropped += READ_ONCE(p->tx_dropped); | |
9793241f | 715 | } |
5a4ae5f6 LR |
716 | stats->rx_errors = rx_errors; |
717 | stats->tx_dropped = tx_dropped; | |
9793241f ED |
718 | } |
719 | ||
6d4cdf47 | 720 | #ifdef CONFIG_NET_POLL_CONTROLLER |
de93cb2e | 721 | static void vlan_dev_poll_controller(struct net_device *dev) |
6d4cdf47 BL |
722 | { |
723 | return; | |
724 | } | |
725 | ||
a8779ec1 | 726 | static int vlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo) |
6d4cdf47 | 727 | { |
f3da3893 AW |
728 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
729 | struct net_device *real_dev = vlan->real_dev; | |
6d4cdf47 BL |
730 | struct netpoll *netpoll; |
731 | int err = 0; | |
732 | ||
a8779ec1 | 733 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); |
6d4cdf47 BL |
734 | err = -ENOMEM; |
735 | if (!netpoll) | |
736 | goto out; | |
737 | ||
a8779ec1 | 738 | err = __netpoll_setup(netpoll, real_dev); |
6d4cdf47 BL |
739 | if (err) { |
740 | kfree(netpoll); | |
741 | goto out; | |
742 | } | |
743 | ||
f3da3893 | 744 | vlan->netpoll = netpoll; |
6d4cdf47 BL |
745 | |
746 | out: | |
747 | return err; | |
748 | } | |
749 | ||
de93cb2e | 750 | static void vlan_dev_netpoll_cleanup(struct net_device *dev) |
6d4cdf47 | 751 | { |
f3da3893 AW |
752 | struct vlan_dev_priv *vlan= vlan_dev_priv(dev); |
753 | struct netpoll *netpoll = vlan->netpoll; | |
6d4cdf47 BL |
754 | |
755 | if (!netpoll) | |
756 | return; | |
757 | ||
f3da3893 | 758 | vlan->netpoll = NULL; |
c9fbd71f | 759 | __netpoll_free(netpoll); |
6d4cdf47 BL |
760 | } |
761 | #endif /* CONFIG_NET_POLL_CONTROLLER */ | |
762 | ||
2dbf6b50 ND |
763 | static int vlan_dev_get_iflink(const struct net_device *dev) |
764 | { | |
e353ea9c | 765 | const struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
2dbf6b50 | 766 | |
e353ea9c | 767 | return READ_ONCE(real_dev->ifindex); |
2dbf6b50 ND |
768 | } |
769 | ||
e4417d69 PNA |
770 | static int vlan_dev_fill_forward_path(struct net_device_path_ctx *ctx, |
771 | struct net_device_path *path) | |
772 | { | |
773 | struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev); | |
774 | ||
775 | path->type = DEV_PATH_VLAN; | |
776 | path->encap.id = vlan->vlan_id; | |
777 | path->encap.proto = vlan->vlan_proto; | |
778 | path->dev = ctx->dev; | |
779 | ctx->dev = vlan->real_dev; | |
bcf2766b FF |
780 | if (ctx->num_vlans >= ARRAY_SIZE(ctx->vlan)) |
781 | return -ENOSPC; | |
782 | ||
783 | ctx->vlan[ctx->num_vlans].id = vlan->vlan_id; | |
784 | ctx->vlan[ctx->num_vlans].proto = vlan->vlan_proto; | |
785 | ctx->num_vlans++; | |
e4417d69 PNA |
786 | |
787 | return 0; | |
788 | } | |
789 | ||
abff3e5e EH |
790 | #if IS_ENABLED(CONFIG_MACSEC) |
791 | ||
792 | static const struct macsec_ops *vlan_get_macsec_ops(const struct macsec_context *ctx) | |
793 | { | |
794 | return vlan_dev_priv(ctx->netdev)->real_dev->macsec_ops; | |
795 | } | |
796 | ||
797 | static int vlan_macsec_offload(int (* const func)(struct macsec_context *), | |
798 | struct macsec_context *ctx) | |
799 | { | |
800 | if (unlikely(!func)) | |
801 | return 0; | |
802 | ||
803 | return (*func)(ctx); | |
804 | } | |
805 | ||
806 | static int vlan_macsec_dev_open(struct macsec_context *ctx) | |
807 | { | |
808 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
809 | ||
810 | if (!ops) | |
811 | return -EOPNOTSUPP; | |
812 | ||
813 | return vlan_macsec_offload(ops->mdo_dev_open, ctx); | |
814 | } | |
815 | ||
816 | static int vlan_macsec_dev_stop(struct macsec_context *ctx) | |
817 | { | |
818 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
819 | ||
820 | if (!ops) | |
821 | return -EOPNOTSUPP; | |
822 | ||
823 | return vlan_macsec_offload(ops->mdo_dev_stop, ctx); | |
824 | } | |
825 | ||
826 | static int vlan_macsec_add_secy(struct macsec_context *ctx) | |
827 | { | |
828 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
829 | ||
830 | if (!ops) | |
831 | return -EOPNOTSUPP; | |
832 | ||
833 | return vlan_macsec_offload(ops->mdo_add_secy, ctx); | |
834 | } | |
835 | ||
836 | static int vlan_macsec_upd_secy(struct macsec_context *ctx) | |
837 | { | |
838 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
839 | ||
840 | if (!ops) | |
841 | return -EOPNOTSUPP; | |
842 | ||
843 | return vlan_macsec_offload(ops->mdo_upd_secy, ctx); | |
844 | } | |
845 | ||
846 | static int vlan_macsec_del_secy(struct macsec_context *ctx) | |
847 | { | |
848 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
849 | ||
850 | if (!ops) | |
851 | return -EOPNOTSUPP; | |
852 | ||
853 | return vlan_macsec_offload(ops->mdo_del_secy, ctx); | |
854 | } | |
855 | ||
856 | static int vlan_macsec_add_rxsc(struct macsec_context *ctx) | |
857 | { | |
858 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
859 | ||
860 | if (!ops) | |
861 | return -EOPNOTSUPP; | |
862 | ||
863 | return vlan_macsec_offload(ops->mdo_add_rxsc, ctx); | |
864 | } | |
865 | ||
866 | static int vlan_macsec_upd_rxsc(struct macsec_context *ctx) | |
867 | { | |
868 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
869 | ||
870 | if (!ops) | |
871 | return -EOPNOTSUPP; | |
872 | ||
873 | return vlan_macsec_offload(ops->mdo_upd_rxsc, ctx); | |
874 | } | |
875 | ||
876 | static int vlan_macsec_del_rxsc(struct macsec_context *ctx) | |
877 | { | |
878 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
879 | ||
880 | if (!ops) | |
881 | return -EOPNOTSUPP; | |
882 | ||
883 | return vlan_macsec_offload(ops->mdo_del_rxsc, ctx); | |
884 | } | |
885 | ||
886 | static int vlan_macsec_add_rxsa(struct macsec_context *ctx) | |
887 | { | |
888 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
889 | ||
890 | if (!ops) | |
891 | return -EOPNOTSUPP; | |
892 | ||
893 | return vlan_macsec_offload(ops->mdo_add_rxsa, ctx); | |
894 | } | |
895 | ||
896 | static int vlan_macsec_upd_rxsa(struct macsec_context *ctx) | |
897 | { | |
898 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
899 | ||
900 | if (!ops) | |
901 | return -EOPNOTSUPP; | |
902 | ||
903 | return vlan_macsec_offload(ops->mdo_upd_rxsa, ctx); | |
904 | } | |
905 | ||
906 | static int vlan_macsec_del_rxsa(struct macsec_context *ctx) | |
907 | { | |
908 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
909 | ||
910 | if (!ops) | |
911 | return -EOPNOTSUPP; | |
912 | ||
913 | return vlan_macsec_offload(ops->mdo_del_rxsa, ctx); | |
914 | } | |
915 | ||
916 | static int vlan_macsec_add_txsa(struct macsec_context *ctx) | |
917 | { | |
918 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
919 | ||
920 | if (!ops) | |
921 | return -EOPNOTSUPP; | |
922 | ||
923 | return vlan_macsec_offload(ops->mdo_add_txsa, ctx); | |
924 | } | |
925 | ||
926 | static int vlan_macsec_upd_txsa(struct macsec_context *ctx) | |
927 | { | |
928 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
929 | ||
930 | if (!ops) | |
931 | return -EOPNOTSUPP; | |
932 | ||
933 | return vlan_macsec_offload(ops->mdo_upd_txsa, ctx); | |
934 | } | |
935 | ||
936 | static int vlan_macsec_del_txsa(struct macsec_context *ctx) | |
937 | { | |
938 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
939 | ||
940 | if (!ops) | |
941 | return -EOPNOTSUPP; | |
942 | ||
943 | return vlan_macsec_offload(ops->mdo_del_txsa, ctx); | |
944 | } | |
945 | ||
946 | static int vlan_macsec_get_dev_stats(struct macsec_context *ctx) | |
947 | { | |
948 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
949 | ||
950 | if (!ops) | |
951 | return -EOPNOTSUPP; | |
952 | ||
953 | return vlan_macsec_offload(ops->mdo_get_dev_stats, ctx); | |
954 | } | |
955 | ||
956 | static int vlan_macsec_get_tx_sc_stats(struct macsec_context *ctx) | |
957 | { | |
958 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
959 | ||
960 | if (!ops) | |
961 | return -EOPNOTSUPP; | |
962 | ||
963 | return vlan_macsec_offload(ops->mdo_get_tx_sc_stats, ctx); | |
964 | } | |
965 | ||
966 | static int vlan_macsec_get_tx_sa_stats(struct macsec_context *ctx) | |
967 | { | |
968 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
969 | ||
970 | if (!ops) | |
971 | return -EOPNOTSUPP; | |
972 | ||
973 | return vlan_macsec_offload(ops->mdo_get_tx_sa_stats, ctx); | |
974 | } | |
975 | ||
976 | static int vlan_macsec_get_rx_sc_stats(struct macsec_context *ctx) | |
977 | { | |
978 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
979 | ||
980 | if (!ops) | |
981 | return -EOPNOTSUPP; | |
982 | ||
983 | return vlan_macsec_offload(ops->mdo_get_rx_sc_stats, ctx); | |
984 | } | |
985 | ||
986 | static int vlan_macsec_get_rx_sa_stats(struct macsec_context *ctx) | |
987 | { | |
988 | const struct macsec_ops *ops = vlan_get_macsec_ops(ctx); | |
989 | ||
990 | if (!ops) | |
991 | return -EOPNOTSUPP; | |
992 | ||
993 | return vlan_macsec_offload(ops->mdo_get_rx_sa_stats, ctx); | |
994 | } | |
995 | ||
996 | static const struct macsec_ops macsec_offload_ops = { | |
997 | /* Device wide */ | |
998 | .mdo_dev_open = vlan_macsec_dev_open, | |
999 | .mdo_dev_stop = vlan_macsec_dev_stop, | |
1000 | /* SecY */ | |
1001 | .mdo_add_secy = vlan_macsec_add_secy, | |
1002 | .mdo_upd_secy = vlan_macsec_upd_secy, | |
1003 | .mdo_del_secy = vlan_macsec_del_secy, | |
1004 | /* Security channels */ | |
1005 | .mdo_add_rxsc = vlan_macsec_add_rxsc, | |
1006 | .mdo_upd_rxsc = vlan_macsec_upd_rxsc, | |
1007 | .mdo_del_rxsc = vlan_macsec_del_rxsc, | |
1008 | /* Security associations */ | |
1009 | .mdo_add_rxsa = vlan_macsec_add_rxsa, | |
1010 | .mdo_upd_rxsa = vlan_macsec_upd_rxsa, | |
1011 | .mdo_del_rxsa = vlan_macsec_del_rxsa, | |
1012 | .mdo_add_txsa = vlan_macsec_add_txsa, | |
1013 | .mdo_upd_txsa = vlan_macsec_upd_txsa, | |
1014 | .mdo_del_txsa = vlan_macsec_del_txsa, | |
1015 | /* Statistics */ | |
1016 | .mdo_get_dev_stats = vlan_macsec_get_dev_stats, | |
1017 | .mdo_get_tx_sc_stats = vlan_macsec_get_tx_sc_stats, | |
1018 | .mdo_get_tx_sa_stats = vlan_macsec_get_tx_sa_stats, | |
1019 | .mdo_get_rx_sc_stats = vlan_macsec_get_rx_sc_stats, | |
1020 | .mdo_get_rx_sa_stats = vlan_macsec_get_rx_sa_stats, | |
1021 | }; | |
1022 | ||
1023 | #endif | |
1024 | ||
75b8846a | 1025 | static const struct ethtool_ops vlan_ethtool_ops = { |
57709798 | 1026 | .get_link_ksettings = vlan_ethtool_get_link_ksettings, |
b3020061 | 1027 | .get_drvinfo = vlan_ethtool_get_drvinfo, |
75b8846a | 1028 | .get_link = ethtool_op_get_link, |
37dd9255 | 1029 | .get_ts_info = vlan_ethtool_get_ts_info, |
75b8846a PM |
1030 | }; |
1031 | ||
656299f7 SH |
1032 | static const struct net_device_ops vlan_netdev_ops = { |
1033 | .ndo_change_mtu = vlan_dev_change_mtu, | |
1034 | .ndo_init = vlan_dev_init, | |
1035 | .ndo_uninit = vlan_dev_uninit, | |
1036 | .ndo_open = vlan_dev_open, | |
1037 | .ndo_stop = vlan_dev_stop, | |
669d3e0b VD |
1038 | .ndo_start_xmit = vlan_dev_hard_start_xmit, |
1039 | .ndo_validate_addr = eth_validate_addr, | |
1040 | .ndo_set_mac_address = vlan_dev_set_mac_address, | |
1041 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, | |
669d3e0b | 1042 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
a7605370 | 1043 | .ndo_eth_ioctl = vlan_dev_ioctl, |
669d3e0b | 1044 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
9618e2ff | 1045 | .ndo_get_stats64 = vlan_dev_get_stats64, |
f4d5392e | 1046 | #if IS_ENABLED(CONFIG_FCOE) |
669d3e0b VD |
1047 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
1048 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, | |
1049 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, | |
1050 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, | |
4ea09c9c | 1051 | .ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target, |
6d4cdf47 | 1052 | #endif |
0a89eb92 CL |
1053 | #ifdef NETDEV_FCOE_WWNN |
1054 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, | |
1055 | #endif | |
6d4cdf47 BL |
1056 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1057 | .ndo_poll_controller = vlan_dev_poll_controller, | |
1058 | .ndo_netpoll_setup = vlan_dev_netpoll_setup, | |
1059 | .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup, | |
669d3e0b | 1060 | #endif |
8a0427bb | 1061 | .ndo_fix_features = vlan_dev_fix_features, |
2dbf6b50 | 1062 | .ndo_get_iflink = vlan_dev_get_iflink, |
e4417d69 | 1063 | .ndo_fill_forward_path = vlan_dev_fill_forward_path, |
65c9fde1 MG |
1064 | .ndo_hwtstamp_get = vlan_hwtstamp_get, |
1065 | .ndo_hwtstamp_set = vlan_hwtstamp_set, | |
669d3e0b VD |
1066 | }; |
1067 | ||
a48e5faf ED |
1068 | static void vlan_dev_free(struct net_device *dev) |
1069 | { | |
1070 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); | |
1071 | ||
1072 | free_percpu(vlan->vlan_pcpu_stats); | |
1073 | vlan->vlan_pcpu_stats = NULL; | |
6a47cdc3 XL |
1074 | |
1075 | /* Get rid of the vlan's reference to real_dev */ | |
d62607c3 | 1076 | netdev_put(vlan->real_dev, &vlan->dev_tracker); |
a48e5faf ED |
1077 | } |
1078 | ||
ef3eb3e5 PM |
1079 | void vlan_setup(struct net_device *dev) |
1080 | { | |
1081 | ether_setup(dev); | |
1082 | ||
2e659c05 | 1083 | dev->priv_flags |= IFF_802_1Q_VLAN | IFF_NO_QUEUE; |
e817af27 | 1084 | dev->priv_flags |= IFF_UNICAST_FLT; |
02875878 ED |
1085 | dev->priv_flags &= ~IFF_TX_SKB_SHARING; |
1086 | netif_keep_dst(dev); | |
ef3eb3e5 | 1087 | |
656299f7 | 1088 | dev->netdev_ops = &vlan_netdev_ops; |
cf124db5 DM |
1089 | dev->needs_free_netdev = true; |
1090 | dev->priv_destructor = vlan_dev_free; | |
75b8846a | 1091 | dev->ethtool_ops = &vlan_ethtool_ops; |
ef3eb3e5 | 1092 | |
abff3e5e EH |
1093 | #if IS_ENABLED(CONFIG_MACSEC) |
1094 | dev->macsec_ops = &macsec_offload_ops; | |
1095 | #endif | |
91572088 JW |
1096 | dev->min_mtu = 0; |
1097 | dev->max_mtu = ETH_MAX_MTU; | |
1098 | ||
423049ab | 1099 | eth_zero_addr(dev->broadcast); |
ef3eb3e5 | 1100 | } |