Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* -*- linux-c -*- |
| 2 | * INET 802.1Q VLAN |
| 3 | * Ethernet-type device handling. |
| 4 | * |
| 5 | * Authors: Ben Greear <greearb@candelatech.com> |
Patrick McHardy | ad71208 | 2008-01-21 00:27:00 -0800 | [diff] [blame] | 6 | * Please send support related email to: netdev@vger.kernel.org |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * VLAN Home Page: http://www.candelatech.com/~greear/vlan.html |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 8 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 15 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | * |
| 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. |
| 21 | */ |
| 22 | |
Joe Perches | afab2d2 | 2011-05-26 10:58:31 +0000 | [diff] [blame] | 23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 26 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <linux/skbuff.h> |
| 28 | #include <linux/netdevice.h> |
Richard Cochran | 37dd925 | 2014-11-21 14:16:20 +0100 | [diff] [blame] | 29 | #include <linux/net_tstamp.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/etherdevice.h> |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 31 | #include <linux/ethtool.h> |
Hangbin Liu | 2463af6 | 2018-03-30 09:44:00 +0800 | [diff] [blame] | 32 | #include <linux/phy.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <net/arp.h> |
Ido Schimmel | 9d54783 | 2015-12-15 16:03:34 +0100 | [diff] [blame] | 34 | #include <net/switchdev.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
| 36 | #include "vlan.h" |
| 37 | #include "vlanproc.h" |
| 38 | #include <linux/if_vlan.h> |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 39 | #include <linux/netpoll.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | /* |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 42 | * Create the VLAN header for an arbitrary protocol layer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | * |
| 44 | * saddr=NULL means use device source address |
| 45 | * daddr=NULL means leave destination address (eg unresolved arp) |
| 46 | * |
| 47 | * This is called when the SKB is moving down the stack towards the |
| 48 | * physical devices. |
| 49 | */ |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 50 | static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, |
| 51 | unsigned short type, |
| 52 | const void *daddr, const void *saddr, |
| 53 | unsigned int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | { |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame] | 55 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | struct vlan_hdr *vhdr; |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 57 | unsigned int vhdrlen = 0; |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 58 | u16 vlan_tci = 0; |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 59 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
Wang Sheng-Hui | 0c0667a | 2013-08-03 16:54:50 +0800 | [diff] [blame] | 61 | if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN); |
| 63 | |
Wang Sheng-Hui | 0c0667a | 2013-08-03 16:54:50 +0800 | [diff] [blame] | 64 | vlan_tci = vlan->vlan_id; |
David S. Miller | e267cb9 | 2013-11-11 00:42:07 -0500 | [diff] [blame] | 65 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority); |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 66 | vhdr->h_vlan_TCI = htons(vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
| 68 | /* |
Octavian Purdila | bf9ae53 | 2009-12-26 11:50:59 +0000 | [diff] [blame] | 69 | * Set the protocol type. For a packet of type ETH_P_802_3/2 we |
| 70 | * put the length in here instead. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | */ |
Octavian Purdila | bf9ae53 | 2009-12-26 11:50:59 +0000 | [diff] [blame] | 72 | if (type != ETH_P_802_3 && type != ETH_P_802_2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | vhdr->h_vlan_encapsulated_proto = htons(type); |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 74 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | vhdr->h_vlan_encapsulated_proto = htons(len); |
Jerome Borsboom | 279e172 | 2007-04-13 16:12:47 -0700 | [diff] [blame] | 76 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame] | 77 | skb->protocol = vlan->vlan_proto; |
| 78 | type = ntohs(vlan->vlan_proto); |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 79 | vhdrlen = VLAN_HLEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | /* Before delegating work to the lower layer, enter our MAC-address */ |
| 83 | if (saddr == NULL) |
| 84 | saddr = dev->dev_addr; |
| 85 | |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 86 | /* Now make the underlying real hard header */ |
Wang Sheng-Hui | 0c0667a | 2013-08-03 16:54:50 +0800 | [diff] [blame] | 87 | dev = vlan->real_dev; |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 88 | rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen); |
| 89 | if (rc > 0) |
| 90 | rc += vhdrlen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | return rc; |
| 92 | } |
| 93 | |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 94 | static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb) |
| 95 | { |
| 96 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 97 | if (vlan->netpoll) |
| 98 | netpoll_send_skb(vlan->netpoll, skb); |
| 99 | #else |
| 100 | BUG(); |
| 101 | #endif |
| 102 | return NETDEV_TX_OK; |
| 103 | } |
| 104 | |
Stephen Hemminger | 6fef4c0 | 2009-08-31 19:50:41 +0000 | [diff] [blame] | 105 | static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, |
| 106 | struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | { |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 108 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 110 | unsigned int len; |
| 111 | int ret; |
David S. Miller | 55b01e8 | 2008-02-23 20:09:11 -0800 | [diff] [blame] | 112 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | /* Handle non-VLAN frames if they are sent to us, for example by DHCP. |
| 114 | * |
| 115 | * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING |
| 116 | * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs... |
| 117 | */ |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame] | 118 | if (veth->h_vlan_proto != vlan->vlan_proto || |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 119 | vlan->flags & VLAN_FLAG_REORDER_HDR) { |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 120 | u16 vlan_tci; |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 121 | vlan_tci = vlan->vlan_id; |
David S. Miller | e267cb9 | 2013-11-11 00:42:07 -0500 | [diff] [blame] | 122 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority); |
Jiri Pirko | b960a0ac | 2014-11-19 14:04:56 +0100 | [diff] [blame] | 123 | __vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } |
| 125 | |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 126 | skb->dev = vlan->real_dev; |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 127 | len = skb->len; |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 128 | if (unlikely(netpoll_tx_running(dev))) |
| 129 | return vlan_netpoll_send_skb(vlan, skb); |
| 130 | |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 131 | ret = dev_queue_xmit(skb); |
| 132 | |
Eric Dumazet | 2d6c9ff | 2010-05-10 04:51:02 +0000 | [diff] [blame] | 133 | if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 134 | struct vlan_pcpu_stats *stats; |
| 135 | |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 136 | stats = this_cpu_ptr(vlan->vlan_pcpu_stats); |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 137 | u64_stats_update_begin(&stats->syncp); |
| 138 | stats->tx_packets++; |
| 139 | stats->tx_bytes += len; |
Wei Yongjun | 307f73d | 2011-05-31 22:53:19 +0000 | [diff] [blame] | 140 | u64_stats_update_end(&stats->syncp); |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 141 | } else { |
Amerigo Wang | 6eacf8a | 2012-08-10 01:24:48 +0000 | [diff] [blame] | 142 | this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped); |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 143 | } |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 144 | |
Patrick McHardy | cbbef5e | 2009-11-10 06:14:24 +0000 | [diff] [blame] | 145 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | } |
| 147 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 148 | static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | { |
Paolo Abeni | 18d3df3 | 2016-07-14 18:00:10 +0200 | [diff] [blame] | 150 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
| 151 | unsigned int max_mtu = real_dev->mtu; |
| 152 | |
| 153 | if (netif_reduces_vlan_mtu(real_dev)) |
| 154 | max_mtu -= VLAN_HLEN; |
| 155 | if (max_mtu < new_mtu) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | return -ERANGE; |
| 157 | |
| 158 | dev->mtu = new_mtu; |
| 159 | |
| 160 | return 0; |
| 161 | } |
| 162 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 163 | void vlan_dev_set_ingress_priority(const struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 164 | u32 skb_prio, u16 vlan_prio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 166 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 167 | |
| 168 | if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio) |
| 169 | vlan->nr_ingress_mappings--; |
| 170 | else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio) |
| 171 | vlan->nr_ingress_mappings++; |
| 172 | |
| 173 | vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | } |
| 175 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 176 | int vlan_dev_set_egress_priority(const struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 177 | u32 skb_prio, u16 vlan_prio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 179 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | struct vlan_priority_tci_mapping *mp = NULL; |
| 181 | struct vlan_priority_tci_mapping *np; |
Eric Dumazet | 05423b2 | 2009-10-26 18:40:35 -0700 | [diff] [blame] | 182 | u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK; |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 183 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 184 | /* See if a priority mapping exists.. */ |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 185 | mp = vlan->egress_priority_map[skb_prio & 0xF]; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 186 | while (mp) { |
| 187 | if (mp->priority == skb_prio) { |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 188 | if (mp->vlan_qos && !vlan_qos) |
| 189 | vlan->nr_egress_mappings--; |
| 190 | else if (!mp->vlan_qos && vlan_qos) |
| 191 | vlan->nr_egress_mappings++; |
| 192 | mp->vlan_qos = vlan_qos; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 193 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 195 | mp = mp->next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | } |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 197 | |
| 198 | /* Create a new mapping then. */ |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 199 | mp = vlan->egress_priority_map[skb_prio & 0xF]; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 200 | np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL); |
| 201 | if (!np) |
| 202 | return -ENOBUFS; |
| 203 | |
| 204 | np->next = mp; |
| 205 | np->priority = skb_prio; |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 206 | np->vlan_qos = vlan_qos; |
Eric Dumazet | 3e3aac4 | 2013-07-18 09:35:10 -0700 | [diff] [blame] | 207 | /* Before inserting this element in hash table, make sure all its fields |
| 208 | * are committed to memory. |
David S. Miller | e267cb9 | 2013-11-11 00:42:07 -0500 | [diff] [blame] | 209 | * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask() |
Eric Dumazet | 3e3aac4 | 2013-07-18 09:35:10 -0700 | [diff] [blame] | 210 | */ |
| 211 | smp_wmb(); |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 212 | vlan->egress_priority_map[skb_prio & 0xF] = np; |
| 213 | if (vlan_qos) |
| 214 | vlan->nr_egress_mappings++; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 215 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | } |
| 217 | |
Patrick McHardy | a4bf3af4 | 2007-06-13 12:07:37 -0700 | [diff] [blame] | 218 | /* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */ |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 219 | int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 221 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 222 | u32 old_flags = vlan->flags; |
| 223 | |
Patrick McHardy | 5e75659 | 2009-11-25 07:54:54 +0000 | [diff] [blame] | 224 | if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | |
David Ward | 86fbe9b | 2013-02-08 17:17:07 +0000 | [diff] [blame] | 225 | VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP)) |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 226 | return -EINVAL; |
| 227 | |
| 228 | vlan->flags = (old_flags & ~mask) | (flags & mask); |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 229 | |
| 230 | if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) { |
| 231 | if (vlan->flags & VLAN_FLAG_GVRP) |
| 232 | vlan_gvrp_request_join(dev); |
| 233 | else |
| 234 | vlan_gvrp_request_leave(dev); |
| 235 | } |
David Ward | 86fbe9b | 2013-02-08 17:17:07 +0000 | [diff] [blame] | 236 | |
| 237 | if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) { |
| 238 | if (vlan->flags & VLAN_FLAG_MVRP) |
| 239 | vlan_mvrp_request_join(dev); |
| 240 | else |
| 241 | vlan_mvrp_request_leave(dev); |
| 242 | } |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 243 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | } |
| 245 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 246 | void vlan_dev_get_realdev_name(const struct net_device *dev, char *result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 248 | strncpy(result, vlan_dev_priv(dev)->real_dev->name, 23); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } |
| 250 | |
Mike Manning | 308453a | 2016-05-27 17:45:07 +0100 | [diff] [blame] | 251 | bool vlan_dev_inherit_address(struct net_device *dev, |
| 252 | struct net_device *real_dev) |
| 253 | { |
| 254 | if (dev->addr_assign_type != NET_ADDR_STOLEN) |
| 255 | return false; |
| 256 | |
| 257 | ether_addr_copy(dev->dev_addr, real_dev->dev_addr); |
| 258 | call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); |
| 259 | return true; |
| 260 | } |
| 261 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 262 | static int vlan_dev_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 264 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 265 | struct net_device *real_dev = vlan->real_dev; |
| 266 | int err; |
| 267 | |
Patrick McHardy | 5e75659 | 2009-11-25 07:54:54 +0000 | [diff] [blame] | 268 | if (!(real_dev->flags & IFF_UP) && |
| 269 | !(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | return -ENETDOWN; |
| 271 | |
Mike Manning | 308453a | 2016-05-27 17:45:07 +0100 | [diff] [blame] | 272 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr) && |
| 273 | !vlan_dev_inherit_address(dev, real_dev)) { |
Jiri Pirko | a748ee2 | 2010-04-01 21:22:09 +0000 | [diff] [blame] | 274 | err = dev_uc_add(real_dev, dev->dev_addr); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 275 | if (err < 0) |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 276 | goto out; |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 277 | } |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 278 | |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 279 | if (dev->flags & IFF_ALLMULTI) { |
| 280 | err = dev_set_allmulti(real_dev, 1); |
| 281 | if (err < 0) |
| 282 | goto del_unicast; |
| 283 | } |
| 284 | if (dev->flags & IFF_PROMISC) { |
| 285 | err = dev_set_promiscuity(real_dev, 1); |
| 286 | if (err < 0) |
| 287 | goto clear_allmulti; |
| 288 | } |
| 289 | |
Joe Perches | 07fc67b | 2014-01-20 09:52:14 -0800 | [diff] [blame] | 290 | ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr); |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 291 | |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 292 | if (vlan->flags & VLAN_FLAG_GVRP) |
| 293 | vlan_gvrp_request_join(dev); |
| 294 | |
David Ward | 86fbe9b | 2013-02-08 17:17:07 +0000 | [diff] [blame] | 295 | if (vlan->flags & VLAN_FLAG_MVRP) |
| 296 | vlan_mvrp_request_join(dev); |
| 297 | |
Phil Oester | 0ac820e | 2010-08-17 18:45:08 +0000 | [diff] [blame] | 298 | if (netif_carrier_ok(real_dev)) |
| 299 | netif_carrier_on(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | return 0; |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 301 | |
| 302 | clear_allmulti: |
| 303 | if (dev->flags & IFF_ALLMULTI) |
| 304 | dev_set_allmulti(real_dev, -1); |
| 305 | del_unicast: |
Joe Perches | 53a2b3a | 2012-05-08 18:56:47 +0000 | [diff] [blame] | 306 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
Jiri Pirko | a748ee2 | 2010-04-01 21:22:09 +0000 | [diff] [blame] | 307 | dev_uc_del(real_dev, dev->dev_addr); |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 308 | out: |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 309 | netif_carrier_off(dev); |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 310 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | } |
| 312 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 313 | static int vlan_dev_stop(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 315 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 316 | struct net_device *real_dev = vlan->real_dev; |
| 317 | |
Patrick McHardy | 56addd6 | 2007-07-14 18:53:28 -0700 | [diff] [blame] | 318 | dev_mc_unsync(real_dev, dev); |
Jiri Pirko | a748ee2 | 2010-04-01 21:22:09 +0000 | [diff] [blame] | 319 | dev_uc_unsync(real_dev, dev); |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 320 | if (dev->flags & IFF_ALLMULTI) |
| 321 | dev_set_allmulti(real_dev, -1); |
| 322 | if (dev->flags & IFF_PROMISC) |
| 323 | dev_set_promiscuity(real_dev, -1); |
| 324 | |
Joe Perches | 53a2b3a | 2012-05-08 18:56:47 +0000 | [diff] [blame] | 325 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
Jiri Pirko | a748ee2 | 2010-04-01 21:22:09 +0000 | [diff] [blame] | 326 | dev_uc_del(real_dev, dev->dev_addr); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 327 | |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 328 | netif_carrier_off(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | return 0; |
| 330 | } |
| 331 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 332 | static int vlan_dev_set_mac_address(struct net_device *dev, void *p) |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 333 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 334 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 335 | struct sockaddr *addr = p; |
| 336 | int err; |
| 337 | |
| 338 | if (!is_valid_ether_addr(addr->sa_data)) |
| 339 | return -EADDRNOTAVAIL; |
| 340 | |
| 341 | if (!(dev->flags & IFF_UP)) |
| 342 | goto out; |
| 343 | |
Joe Perches | 53a2b3a | 2012-05-08 18:56:47 +0000 | [diff] [blame] | 344 | if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) { |
Jiri Pirko | a748ee2 | 2010-04-01 21:22:09 +0000 | [diff] [blame] | 345 | err = dev_uc_add(real_dev, addr->sa_data); |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 346 | if (err < 0) |
| 347 | return err; |
| 348 | } |
| 349 | |
Joe Perches | 53a2b3a | 2012-05-08 18:56:47 +0000 | [diff] [blame] | 350 | if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
Jiri Pirko | a748ee2 | 2010-04-01 21:22:09 +0000 | [diff] [blame] | 351 | dev_uc_del(real_dev, dev->dev_addr); |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 352 | |
| 353 | out: |
Joe Perches | 07fc67b | 2014-01-20 09:52:14 -0800 | [diff] [blame] | 354 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 355 | return 0; |
| 356 | } |
| 357 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 358 | static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 360 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 361 | const struct net_device_ops *ops = real_dev->netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | struct ifreq ifrr; |
| 363 | int err = -EOPNOTSUPP; |
| 364 | |
| 365 | strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ); |
| 366 | ifrr.ifr_ifru = ifr->ifr_ifru; |
| 367 | |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 368 | switch (cmd) { |
Hangbin Liu | d8209c1 | 2019-05-09 14:55:07 +0800 | [diff] [blame] | 369 | case SIOCSHWTSTAMP: |
| 370 | if (!net_eq(dev_net(dev), &init_net)) |
| 371 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | case SIOCGMIIPHY: |
| 373 | case SIOCGMIIREG: |
| 374 | case SIOCSMIIREG: |
Stefan Sørensen | a6111d3 | 2014-06-27 11:59:11 +0200 | [diff] [blame] | 375 | case SIOCGHWTSTAMP: |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 376 | if (netif_device_present(real_dev) && ops->ndo_do_ioctl) |
| 377 | err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | } |
| 380 | |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 381 | if (!err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | ifr->ifr_ifru = ifrr.ifr_ifru; |
| 383 | |
| 384 | return err; |
| 385 | } |
| 386 | |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 387 | static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa) |
| 388 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 389 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 390 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 391 | int err = 0; |
| 392 | |
| 393 | if (netif_device_present(real_dev) && ops->ndo_neigh_setup) |
David S. Miller | 9d40bbd | 2009-03-04 23:46:25 -0800 | [diff] [blame] | 394 | err = ops->ndo_neigh_setup(real_dev, pa); |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 395 | |
| 396 | return err; |
| 397 | } |
| 398 | |
Amerigo Wang | f4d5392 | 2012-10-29 17:22:28 +0000 | [diff] [blame] | 399 | #if IS_ENABLED(CONFIG_FCOE) |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 400 | static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid, |
| 401 | struct scatterlist *sgl, unsigned int sgc) |
| 402 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 403 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 404 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 405 | int rc = 0; |
| 406 | |
| 407 | if (ops->ndo_fcoe_ddp_setup) |
| 408 | rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc); |
| 409 | |
| 410 | return rc; |
| 411 | } |
| 412 | |
| 413 | static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid) |
| 414 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 415 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 416 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 417 | int len = 0; |
| 418 | |
| 419 | if (ops->ndo_fcoe_ddp_done) |
| 420 | len = ops->ndo_fcoe_ddp_done(real_dev, xid); |
| 421 | |
| 422 | return len; |
| 423 | } |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 424 | |
| 425 | static int vlan_dev_fcoe_enable(struct net_device *dev) |
| 426 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 427 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 428 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 429 | int rc = -EINVAL; |
| 430 | |
| 431 | if (ops->ndo_fcoe_enable) |
| 432 | rc = ops->ndo_fcoe_enable(real_dev); |
| 433 | return rc; |
| 434 | } |
| 435 | |
| 436 | static int vlan_dev_fcoe_disable(struct net_device *dev) |
| 437 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 438 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 439 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 440 | int rc = -EINVAL; |
| 441 | |
| 442 | if (ops->ndo_fcoe_disable) |
| 443 | rc = ops->ndo_fcoe_disable(real_dev); |
| 444 | return rc; |
| 445 | } |
Yi Zou | d653479 | 2009-10-28 18:25:16 +0000 | [diff] [blame] | 446 | |
| 447 | static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 448 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 449 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Yi Zou | d653479 | 2009-10-28 18:25:16 +0000 | [diff] [blame] | 450 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 451 | int rc = -EINVAL; |
| 452 | |
| 453 | if (ops->ndo_fcoe_get_wwn) |
| 454 | rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type); |
| 455 | return rc; |
| 456 | } |
Yi Zou | 4ea09c9 | 2011-02-01 07:22:11 +0000 | [diff] [blame] | 457 | |
| 458 | static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid, |
| 459 | struct scatterlist *sgl, unsigned int sgc) |
| 460 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 461 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Yi Zou | 4ea09c9 | 2011-02-01 07:22:11 +0000 | [diff] [blame] | 462 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 463 | int rc = 0; |
| 464 | |
| 465 | if (ops->ndo_fcoe_ddp_target) |
| 466 | rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc); |
| 467 | |
| 468 | return rc; |
| 469 | } |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 470 | #endif |
| 471 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 472 | static void vlan_dev_change_rx_flags(struct net_device *dev, int change) |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 473 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 474 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 475 | |
Matthijs Kooijman | deede2f | 2011-10-31 04:53:13 +0000 | [diff] [blame] | 476 | if (dev->flags & IFF_UP) { |
| 477 | if (change & IFF_ALLMULTI) |
| 478 | dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1); |
| 479 | if (change & IFF_PROMISC) |
| 480 | dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1); |
| 481 | } |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 482 | } |
| 483 | |
Chris Leech | e83a2ea | 2008-01-31 16:53:23 -0800 | [diff] [blame] | 484 | static void vlan_dev_set_rx_mode(struct net_device *vlan_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | { |
Vlad Yasevich | d38569a | 2014-05-16 17:04:55 -0400 | [diff] [blame] | 486 | dev_mc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); |
| 487 | dev_uc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | } |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 489 | |
| 490 | /* |
| 491 | * vlan network devices have devices nesting below it, and are a special |
| 492 | * "super class" of normal network devices; split their locks off into a |
| 493 | * separate class since they always nest. |
| 494 | */ |
| 495 | static struct lock_class_key vlan_netdev_xmit_lock_key; |
David S. Miller | cf508b1 | 2008-07-22 14:16:42 -0700 | [diff] [blame] | 496 | static struct lock_class_key vlan_netdev_addr_lock_key; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 497 | |
David S. Miller | e8a0464 | 2008-07-17 00:34:19 -0700 | [diff] [blame] | 498 | static void vlan_dev_set_lockdep_one(struct net_device *dev, |
| 499 | struct netdev_queue *txq, |
| 500 | void *_subclass) |
David S. Miller | c773e84 | 2008-07-08 23:13:53 -0700 | [diff] [blame] | 501 | { |
| 502 | lockdep_set_class_and_subclass(&txq->_xmit_lock, |
David S. Miller | e8a0464 | 2008-07-17 00:34:19 -0700 | [diff] [blame] | 503 | &vlan_netdev_xmit_lock_key, |
| 504 | *(int *)_subclass); |
David S. Miller | c773e84 | 2008-07-08 23:13:53 -0700 | [diff] [blame] | 505 | } |
| 506 | |
| 507 | static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass) |
| 508 | { |
David S. Miller | cf508b1 | 2008-07-22 14:16:42 -0700 | [diff] [blame] | 509 | lockdep_set_class_and_subclass(&dev->addr_list_lock, |
| 510 | &vlan_netdev_addr_lock_key, |
| 511 | subclass); |
David S. Miller | e8a0464 | 2008-07-17 00:34:19 -0700 | [diff] [blame] | 512 | netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass); |
David S. Miller | c773e84 | 2008-07-08 23:13:53 -0700 | [diff] [blame] | 513 | } |
| 514 | |
Vlad Yasevich | d38569a | 2014-05-16 17:04:55 -0400 | [diff] [blame] | 515 | static int vlan_dev_get_lock_subclass(struct net_device *dev) |
| 516 | { |
| 517 | return vlan_dev_priv(dev)->nest_level; |
| 518 | } |
| 519 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 520 | static const struct header_ops vlan_header_ops = { |
| 521 | .create = vlan_dev_hard_header, |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 522 | .parse = eth_header_parse, |
| 523 | }; |
| 524 | |
David S. Miller | 2205369 | 2013-12-31 16:23:35 -0500 | [diff] [blame] | 525 | static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev, |
| 526 | unsigned short type, |
| 527 | const void *daddr, const void *saddr, |
| 528 | unsigned int len) |
| 529 | { |
| 530 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 531 | struct net_device *real_dev = vlan->real_dev; |
| 532 | |
Peter Boström | dd38743 | 2014-03-10 16:17:15 +0100 | [diff] [blame] | 533 | if (saddr == NULL) |
| 534 | saddr = dev->dev_addr; |
| 535 | |
David S. Miller | 2205369 | 2013-12-31 16:23:35 -0500 | [diff] [blame] | 536 | return dev_hard_header(skb, real_dev, type, daddr, saddr, len); |
| 537 | } |
| 538 | |
| 539 | static const struct header_ops vlan_passthru_header_ops = { |
| 540 | .create = vlan_passthru_hard_header, |
David S. Miller | 2205369 | 2013-12-31 16:23:35 -0500 | [diff] [blame] | 541 | .parse = eth_header_parse, |
| 542 | }; |
| 543 | |
Doug Goldstein | e949b09 | 2012-10-21 19:53:57 +0000 | [diff] [blame] | 544 | static struct device_type vlan_type = { |
| 545 | .name = "vlan", |
| 546 | }; |
| 547 | |
Eric Dumazet | 213b15c | 2010-11-11 09:42:45 +0000 | [diff] [blame] | 548 | static const struct net_device_ops vlan_netdev_ops; |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 549 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 550 | static int vlan_dev_init(struct net_device *dev) |
| 551 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 552 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 553 | |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 554 | netif_carrier_off(dev); |
| 555 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 556 | /* IFF_BROADCAST|IFF_MULTICAST; ??? */ |
John Fastabend | 194dbcc | 2010-05-12 21:31:06 +0000 | [diff] [blame] | 557 | dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | |
| 558 | IFF_MASTER | IFF_SLAVE); |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 559 | dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) | |
| 560 | (1<<__LINK_STATE_DORMANT))) | |
| 561 | (1<<__LINK_STATE_PRESENT); |
| 562 | |
Tom Herbert | a188222 | 2015-12-14 11:19:43 -0800 | [diff] [blame] | 563 | dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | |
Toshiaki Makita | 53f6b70 | 2014-12-10 11:43:13 +0900 | [diff] [blame] | 564 | NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | |
Tom Herbert | 53692b1 | 2015-12-14 11:19:41 -0800 | [diff] [blame] | 565 | NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC | |
Michał Mirosław | 62f2a3a | 2011-07-13 14:10:29 +0000 | [diff] [blame] | 566 | NETIF_F_ALL_FCOE; |
| 567 | |
Andrey Vagin | 4c484f7 | 2017-03-15 17:41:14 -0700 | [diff] [blame] | 568 | dev->features |= dev->hw_features | NETIF_F_LLTX; |
Alexander Duyck | 1ae4be2 | 2008-09-11 20:17:05 -0700 | [diff] [blame] | 569 | dev->gso_max_size = real_dev->gso_max_size; |
Eric Dumazet | f6773c5 | 2016-03-16 21:59:49 -0700 | [diff] [blame] | 570 | dev->gso_max_segs = real_dev->gso_max_segs; |
Vlad Yasevich | 2adb956 | 2014-03-27 22:14:49 -0400 | [diff] [blame] | 571 | if (dev->features & NETIF_F_VLAN_FEATURES) |
| 572 | netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n"); |
| 573 | |
Toshiaki Makita | 8d46350 | 2015-03-27 14:31:10 +0900 | [diff] [blame] | 574 | dev->vlan_features = real_dev->vlan_features & ~NETIF_F_ALL_FCOE; |
Patrick McHardy | 5fb1357 | 2008-05-20 14:54:50 -0700 | [diff] [blame] | 575 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 576 | /* ipv6 shared card related stuff */ |
| 577 | dev->dev_id = real_dev->dev_id; |
| 578 | |
Mike Manning | 308453a | 2016-05-27 17:45:07 +0100 | [diff] [blame] | 579 | if (is_zero_ether_addr(dev->dev_addr)) { |
| 580 | ether_addr_copy(dev->dev_addr, real_dev->dev_addr); |
| 581 | dev->addr_assign_type = NET_ADDR_STOLEN; |
| 582 | } |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 583 | if (is_zero_ether_addr(dev->broadcast)) |
| 584 | memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len); |
| 585 | |
Amerigo Wang | f4d5392 | 2012-10-29 17:22:28 +0000 | [diff] [blame] | 586 | #if IS_ENABLED(CONFIG_FCOE) |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 587 | dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid; |
| 588 | #endif |
| 589 | |
Eric Dumazet | d870bfb | 2011-03-18 00:27:27 +0000 | [diff] [blame] | 590 | dev->needed_headroom = real_dev->needed_headroom; |
Vlad Yasevich | fc0d48b | 2014-03-26 11:47:56 -0400 | [diff] [blame] | 591 | if (vlan_hw_offload_capable(real_dev->features, |
| 592 | vlan_dev_priv(dev)->vlan_proto)) { |
David S. Miller | 2205369 | 2013-12-31 16:23:35 -0500 | [diff] [blame] | 593 | dev->header_ops = &vlan_passthru_header_ops; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 594 | dev->hard_header_len = real_dev->hard_header_len; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 595 | } else { |
| 596 | dev->header_ops = &vlan_header_ops; |
| 597 | dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 598 | } |
| 599 | |
Eric Dumazet | 213b15c | 2010-11-11 09:42:45 +0000 | [diff] [blame] | 600 | dev->netdev_ops = &vlan_netdev_ops; |
John Fastabend | 636e19a | 2010-10-30 14:22:42 +0000 | [diff] [blame] | 601 | |
Doug Goldstein | e949b09 | 2012-10-21 19:53:57 +0000 | [diff] [blame] | 602 | SET_NETDEV_DEVTYPE(dev, &vlan_type); |
| 603 | |
Vlad Yasevich | d38569a | 2014-05-16 17:04:55 -0400 | [diff] [blame] | 604 | vlan_dev_set_lockdep_class(dev, vlan_dev_get_lock_subclass(dev)); |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 605 | |
WANG Cong | 1c213bd | 2014-02-13 11:46:28 -0800 | [diff] [blame] | 606 | vlan_dev_priv(dev)->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 607 | if (!vlan_dev_priv(dev)->vlan_pcpu_stats) |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 608 | return -ENOMEM; |
| 609 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 610 | return 0; |
| 611 | } |
| 612 | |
Eric Dumazet | a57180d | 2020-01-07 01:42:24 -0800 | [diff] [blame] | 613 | /* Note: this function might be called multiple times for the same device. */ |
| 614 | void vlan_dev_uninit(struct net_device *dev) |
Pavel Emelyanov | 2355632 | 2008-04-04 12:45:12 -0700 | [diff] [blame] | 615 | { |
| 616 | struct vlan_priority_tci_mapping *pm; |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 617 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Pavel Emelyanov | 2355632 | 2008-04-04 12:45:12 -0700 | [diff] [blame] | 618 | int i; |
| 619 | |
| 620 | for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) { |
| 621 | while ((pm = vlan->egress_priority_map[i]) != NULL) { |
| 622 | vlan->egress_priority_map[i] = pm->next; |
| 623 | kfree(pm); |
| 624 | } |
| 625 | } |
| 626 | } |
| 627 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 628 | static netdev_features_t vlan_dev_fix_features(struct net_device *dev, |
| 629 | netdev_features_t features) |
Michał Mirosław | 8a0427b | 2011-04-02 22:49:12 -0700 | [diff] [blame] | 630 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 631 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
Bjørn Mork | b29d314 | 2013-05-01 23:06:42 +0000 | [diff] [blame] | 632 | netdev_features_t old_features = features; |
Michał Mirosław | 8a0427b | 2011-04-02 22:49:12 -0700 | [diff] [blame] | 633 | |
Michal Kubeček | da08143 | 2014-05-20 08:29:25 +0200 | [diff] [blame] | 634 | features = netdev_intersect_features(features, real_dev->vlan_features); |
Michał Mirosław | bc5787c6 | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 635 | features |= NETIF_F_RXCSUM; |
Michal Kubeček | da08143 | 2014-05-20 08:29:25 +0200 | [diff] [blame] | 636 | features = netdev_intersect_features(features, real_dev->features); |
Shan Wei | 712ae51 | 2011-07-05 20:43:12 -0700 | [diff] [blame] | 637 | |
Toshiaki Makita | 53f6b70 | 2014-12-10 11:43:13 +0900 | [diff] [blame] | 638 | features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE); |
Michał Mirosław | f0a619c | 2011-05-06 07:56:29 +0000 | [diff] [blame] | 639 | features |= NETIF_F_LLTX; |
Michał Mirosław | 8a0427b | 2011-04-02 22:49:12 -0700 | [diff] [blame] | 640 | |
| 641 | return features; |
| 642 | } |
| 643 | |
David Decotigny | 5770979 | 2016-02-24 10:58:08 -0800 | [diff] [blame] | 644 | static int vlan_ethtool_get_link_ksettings(struct net_device *dev, |
| 645 | struct ethtool_link_ksettings *cmd) |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 646 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 647 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
Jiri Pirko | 4bc71cb | 2011-09-03 03:34:30 +0000 | [diff] [blame] | 648 | |
David Decotigny | 5770979 | 2016-02-24 10:58:08 -0800 | [diff] [blame] | 649 | return __ethtool_get_link_ksettings(vlan->real_dev, cmd); |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | static void vlan_ethtool_get_drvinfo(struct net_device *dev, |
| 653 | struct ethtool_drvinfo *info) |
| 654 | { |
Jiri Pirko | 7826d43 | 2013-01-06 00:44:26 +0000 | [diff] [blame] | 655 | strlcpy(info->driver, vlan_fullname, sizeof(info->driver)); |
| 656 | strlcpy(info->version, vlan_version, sizeof(info->version)); |
| 657 | strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 658 | } |
| 659 | |
Richard Cochran | 37dd925 | 2014-11-21 14:16:20 +0100 | [diff] [blame] | 660 | static int vlan_ethtool_get_ts_info(struct net_device *dev, |
| 661 | struct ethtool_ts_info *info) |
| 662 | { |
| 663 | const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 664 | const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops; |
Hangbin Liu | 2463af6 | 2018-03-30 09:44:00 +0800 | [diff] [blame] | 665 | struct phy_device *phydev = vlan->real_dev->phydev; |
Richard Cochran | 37dd925 | 2014-11-21 14:16:20 +0100 | [diff] [blame] | 666 | |
Hangbin Liu | 2463af6 | 2018-03-30 09:44:00 +0800 | [diff] [blame] | 667 | if (phydev && phydev->drv && phydev->drv->ts_info) { |
| 668 | return phydev->drv->ts_info(phydev, info); |
| 669 | } else if (ops->get_ts_info) { |
Richard Cochran | 37dd925 | 2014-11-21 14:16:20 +0100 | [diff] [blame] | 670 | return ops->get_ts_info(vlan->real_dev, info); |
| 671 | } else { |
| 672 | info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | |
| 673 | SOF_TIMESTAMPING_SOFTWARE; |
| 674 | info->phc_index = -1; |
| 675 | } |
| 676 | |
| 677 | return 0; |
| 678 | } |
| 679 | |
Eric Dumazet | 2817273 | 2010-07-07 14:58:56 -0700 | [diff] [blame] | 680 | static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 681 | { |
Li RongQing | 5a4ae5f | 2014-04-21 19:49:08 +0800 | [diff] [blame] | 682 | struct vlan_pcpu_stats *p; |
| 683 | u32 rx_errors = 0, tx_dropped = 0; |
| 684 | int i; |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 685 | |
Li RongQing | 5a4ae5f | 2014-04-21 19:49:08 +0800 | [diff] [blame] | 686 | for_each_possible_cpu(i) { |
| 687 | u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes; |
| 688 | unsigned int start; |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 689 | |
Li RongQing | 5a4ae5f | 2014-04-21 19:49:08 +0800 | [diff] [blame] | 690 | p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i); |
| 691 | do { |
| 692 | start = u64_stats_fetch_begin_irq(&p->syncp); |
| 693 | rxpackets = p->rx_packets; |
| 694 | rxbytes = p->rx_bytes; |
| 695 | rxmulticast = p->rx_multicast; |
| 696 | txpackets = p->tx_packets; |
| 697 | txbytes = p->tx_bytes; |
| 698 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 699 | |
Li RongQing | 5a4ae5f | 2014-04-21 19:49:08 +0800 | [diff] [blame] | 700 | stats->rx_packets += rxpackets; |
| 701 | stats->rx_bytes += rxbytes; |
| 702 | stats->multicast += rxmulticast; |
| 703 | stats->tx_packets += txpackets; |
| 704 | stats->tx_bytes += txbytes; |
| 705 | /* rx_errors & tx_dropped are u32 */ |
| 706 | rx_errors += p->rx_errors; |
| 707 | tx_dropped += p->tx_dropped; |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 708 | } |
Li RongQing | 5a4ae5f | 2014-04-21 19:49:08 +0800 | [diff] [blame] | 709 | stats->rx_errors = rx_errors; |
| 710 | stats->tx_dropped = tx_dropped; |
| 711 | |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 712 | return stats; |
| 713 | } |
| 714 | |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 715 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Eric Dumazet | de93cb2 | 2011-12-13 20:57:54 +0000 | [diff] [blame] | 716 | static void vlan_dev_poll_controller(struct net_device *dev) |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 717 | { |
| 718 | return; |
| 719 | } |
| 720 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 721 | static int vlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo) |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 722 | { |
Amerigo Wang | f3da389 | 2012-08-10 01:24:47 +0000 | [diff] [blame] | 723 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 724 | struct net_device *real_dev = vlan->real_dev; |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 725 | struct netpoll *netpoll; |
| 726 | int err = 0; |
| 727 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 728 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 729 | err = -ENOMEM; |
| 730 | if (!netpoll) |
| 731 | goto out; |
| 732 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 733 | err = __netpoll_setup(netpoll, real_dev); |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 734 | if (err) { |
| 735 | kfree(netpoll); |
| 736 | goto out; |
| 737 | } |
| 738 | |
Amerigo Wang | f3da389 | 2012-08-10 01:24:47 +0000 | [diff] [blame] | 739 | vlan->netpoll = netpoll; |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 740 | |
| 741 | out: |
| 742 | return err; |
| 743 | } |
| 744 | |
Eric Dumazet | de93cb2 | 2011-12-13 20:57:54 +0000 | [diff] [blame] | 745 | static void vlan_dev_netpoll_cleanup(struct net_device *dev) |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 746 | { |
Amerigo Wang | f3da389 | 2012-08-10 01:24:47 +0000 | [diff] [blame] | 747 | struct vlan_dev_priv *vlan= vlan_dev_priv(dev); |
| 748 | struct netpoll *netpoll = vlan->netpoll; |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 749 | |
| 750 | if (!netpoll) |
| 751 | return; |
| 752 | |
Amerigo Wang | f3da389 | 2012-08-10 01:24:47 +0000 | [diff] [blame] | 753 | vlan->netpoll = NULL; |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 754 | |
Neil Horman | 2cde6ac | 2013-02-11 10:25:30 +0000 | [diff] [blame] | 755 | __netpoll_free_async(netpoll); |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 756 | } |
| 757 | #endif /* CONFIG_NET_POLL_CONTROLLER */ |
| 758 | |
Nicolas Dichtel | 2dbf6b5 | 2015-04-02 17:07:04 +0200 | [diff] [blame] | 759 | static int vlan_dev_get_iflink(const struct net_device *dev) |
| 760 | { |
| 761 | struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
| 762 | |
| 763 | return real_dev->ifindex; |
| 764 | } |
| 765 | |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 766 | static const struct ethtool_ops vlan_ethtool_ops = { |
David Decotigny | 5770979 | 2016-02-24 10:58:08 -0800 | [diff] [blame] | 767 | .get_link_ksettings = vlan_ethtool_get_link_ksettings, |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 768 | .get_drvinfo = vlan_ethtool_get_drvinfo, |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 769 | .get_link = ethtool_op_get_link, |
Richard Cochran | 37dd925 | 2014-11-21 14:16:20 +0100 | [diff] [blame] | 770 | .get_ts_info = vlan_ethtool_get_ts_info, |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 771 | }; |
| 772 | |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 773 | static const struct net_device_ops vlan_netdev_ops = { |
| 774 | .ndo_change_mtu = vlan_dev_change_mtu, |
| 775 | .ndo_init = vlan_dev_init, |
| 776 | .ndo_uninit = vlan_dev_uninit, |
| 777 | .ndo_open = vlan_dev_open, |
| 778 | .ndo_stop = vlan_dev_stop, |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 779 | .ndo_start_xmit = vlan_dev_hard_start_xmit, |
| 780 | .ndo_validate_addr = eth_validate_addr, |
| 781 | .ndo_set_mac_address = vlan_dev_set_mac_address, |
| 782 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 783 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
| 784 | .ndo_do_ioctl = vlan_dev_ioctl, |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 785 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 786 | .ndo_get_stats64 = vlan_dev_get_stats64, |
Amerigo Wang | f4d5392 | 2012-10-29 17:22:28 +0000 | [diff] [blame] | 787 | #if IS_ENABLED(CONFIG_FCOE) |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 788 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
| 789 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 790 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, |
| 791 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, |
Yi Zou | d653479 | 2009-10-28 18:25:16 +0000 | [diff] [blame] | 792 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, |
Yi Zou | 4ea09c9 | 2011-02-01 07:22:11 +0000 | [diff] [blame] | 793 | .ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target, |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 794 | #endif |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 795 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 796 | .ndo_poll_controller = vlan_dev_poll_controller, |
| 797 | .ndo_netpoll_setup = vlan_dev_netpoll_setup, |
| 798 | .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup, |
| 799 | #endif |
Michał Mirosław | 8a0427b | 2011-04-02 22:49:12 -0700 | [diff] [blame] | 800 | .ndo_fix_features = vlan_dev_fix_features, |
Jiri Pirko | 18bfb92 | 2016-07-05 11:27:38 +0200 | [diff] [blame] | 801 | .ndo_neigh_construct = netdev_default_l2upper_neigh_construct, |
| 802 | .ndo_neigh_destroy = netdev_default_l2upper_neigh_destroy, |
Ido Schimmel | 9d54783 | 2015-12-15 16:03:34 +0100 | [diff] [blame] | 803 | .ndo_fdb_add = switchdev_port_fdb_add, |
| 804 | .ndo_fdb_del = switchdev_port_fdb_del, |
| 805 | .ndo_fdb_dump = switchdev_port_fdb_dump, |
| 806 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
| 807 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
| 808 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
Vlad Yasevich | d38569a | 2014-05-16 17:04:55 -0400 | [diff] [blame] | 809 | .ndo_get_lock_subclass = vlan_dev_get_lock_subclass, |
Nicolas Dichtel | 2dbf6b5 | 2015-04-02 17:07:04 +0200 | [diff] [blame] | 810 | .ndo_get_iflink = vlan_dev_get_iflink, |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 811 | }; |
| 812 | |
Eric Dumazet | a48e5fa | 2014-07-02 02:25:15 -0700 | [diff] [blame] | 813 | static void vlan_dev_free(struct net_device *dev) |
| 814 | { |
| 815 | struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
| 816 | |
| 817 | free_percpu(vlan->vlan_pcpu_stats); |
| 818 | vlan->vlan_pcpu_stats = NULL; |
| 819 | free_netdev(dev); |
| 820 | } |
| 821 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 822 | void vlan_setup(struct net_device *dev) |
| 823 | { |
| 824 | ether_setup(dev); |
| 825 | |
Phil Sutter | 2e659c0 | 2015-08-18 10:30:36 +0200 | [diff] [blame] | 826 | dev->priv_flags |= IFF_802_1Q_VLAN | IFF_NO_QUEUE; |
Zhang Shengju | e817af2 | 2016-02-18 10:00:11 +0000 | [diff] [blame] | 827 | dev->priv_flags |= IFF_UNICAST_FLT; |
Eric Dumazet | 0287587 | 2014-10-05 18:38:35 -0700 | [diff] [blame] | 828 | dev->priv_flags &= ~IFF_TX_SKB_SHARING; |
| 829 | netif_keep_dst(dev); |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 830 | |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 831 | dev->netdev_ops = &vlan_netdev_ops; |
Eric Dumazet | a48e5fa | 2014-07-02 02:25:15 -0700 | [diff] [blame] | 832 | dev->destructor = vlan_dev_free; |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 833 | dev->ethtool_ops = &vlan_ethtool_ops; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 834 | |
Joe Perches | 423049a | 2015-03-02 19:54:52 -0800 | [diff] [blame] | 835 | eth_zero_addr(dev->broadcast); |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 836 | } |