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 | |
| 23 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/skbuff.h> |
| 26 | #include <linux/netdevice.h> |
| 27 | #include <linux/etherdevice.h> |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 28 | #include <linux/ethtool.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <net/arp.h> |
| 30 | |
| 31 | #include "vlan.h" |
| 32 | #include "vlanproc.h" |
| 33 | #include <linux/if_vlan.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| 35 | /* |
| 36 | * Rebuild the Ethernet MAC header. This is called after an ARP |
| 37 | * (or in future other address resolution) has completed on this |
| 38 | * sk_buff. We now let ARP fill in the other fields. |
| 39 | * |
| 40 | * This routine CANNOT use cached dst->neigh! |
| 41 | * Really, it is used only when dst->neigh is wrong. |
| 42 | * |
| 43 | * TODO: This needs a checkup, I'm ignorant here. --BLG |
| 44 | */ |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 45 | static int vlan_dev_rebuild_header(struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | { |
| 47 | struct net_device *dev = skb->dev; |
| 48 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); |
| 49 | |
| 50 | switch (veth->h_vlan_encapsulated_proto) { |
| 51 | #ifdef CONFIG_INET |
Arnaldo Carvalho de Melo | 6067804 | 2008-09-20 22:20:49 -0700 | [diff] [blame] | 52 | case htons(ETH_P_IP): |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* TODO: Confirm this will work with VLAN headers... */ |
| 55 | return arp_find(veth->h_dest, skb); |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 56 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | default: |
Patrick McHardy | 40f98e1 | 2008-01-21 00:24:30 -0800 | [diff] [blame] | 58 | pr_debug("%s: unable to resolve type %X addresses.\n", |
| 59 | dev->name, ntohs(veth->h_vlan_encapsulated_proto)); |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | memcpy(veth->h_source, dev->dev_addr, ETH_ALEN); |
| 62 | break; |
Stephen Hemminger | 3ff50b7 | 2007-04-20 17:09:22 -0700 | [diff] [blame] | 63 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | |
| 65 | return 0; |
| 66 | } |
| 67 | |
| 68 | static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb) |
| 69 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 70 | if (vlan_dev_info(skb->dev)->flags & VLAN_FLAG_REORDER_HDR) { |
Patrick McHardy | 11a100f | 2008-07-08 15:36:57 -0700 | [diff] [blame] | 71 | if (skb_cow(skb, skb_headroom(skb)) < 0) |
| 72 | skb = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | if (skb) { |
| 74 | /* Lifted from Gleb's VLAN code... */ |
| 75 | memmove(skb->data - ETH_HLEN, |
| 76 | skb->data - VLAN_ETH_HLEN, 12); |
Arnaldo Carvalho de Melo | b0e380b | 2007-04-10 21:21:55 -0700 | [diff] [blame] | 77 | skb->mac_header += VLAN_HLEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | } |
| 79 | } |
| 80 | |
| 81 | return skb; |
| 82 | } |
| 83 | |
Pavel Emelyanov | 91b4f95 | 2008-01-21 00:28:03 -0800 | [diff] [blame] | 84 | static inline void vlan_set_encap_proto(struct sk_buff *skb, |
| 85 | struct vlan_hdr *vhdr) |
| 86 | { |
| 87 | __be16 proto; |
| 88 | unsigned char *rawp; |
| 89 | |
| 90 | /* |
| 91 | * Was a VLAN packet, grab the encapsulated protocol, which the layer |
| 92 | * three protocols care about. |
| 93 | */ |
| 94 | |
| 95 | proto = vhdr->h_vlan_encapsulated_proto; |
| 96 | if (ntohs(proto) >= 1536) { |
| 97 | skb->protocol = proto; |
| 98 | return; |
| 99 | } |
| 100 | |
| 101 | rawp = skb->data; |
| 102 | if (*(unsigned short *)rawp == 0xFFFF) |
| 103 | /* |
| 104 | * This is a magic hack to spot IPX packets. Older Novell |
| 105 | * breaks the protocol design and runs IPX over 802.3 without |
| 106 | * an 802.2 LLC layer. We look for FFFF which isn't a used |
| 107 | * 802.2 SSAP/DSAP. This won't work for fault tolerant netware |
| 108 | * but does for the rest. |
| 109 | */ |
| 110 | skb->protocol = htons(ETH_P_802_3); |
| 111 | else |
| 112 | /* |
| 113 | * Real 802.2 LLC |
| 114 | */ |
| 115 | skb->protocol = htons(ETH_P_802_2); |
| 116 | } |
| 117 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | /* |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 119 | * Determine the packet's protocol ID. The rule here is that we |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | * assume 802.3 if the type field is short enough to be a length. |
| 121 | * This is normal practice and works for any 'now in use' protocol. |
| 122 | * |
| 123 | * Also, at this point we assume that we ARE dealing exclusively with |
| 124 | * VLAN packets, or packets that should be made into VLAN packets based |
| 125 | * on a default VLAN ID. |
| 126 | * |
| 127 | * NOTE: Should be similar to ethernet/eth.c. |
| 128 | * |
| 129 | * SANITY NOTE: This method is called when a packet is moving up the stack |
| 130 | * towards userland. To get here, it would have already passed |
| 131 | * through the ethernet/eth.c eth_type_trans() method. |
| 132 | * SANITY NOTE 2: We are referencing to the VLAN_HDR frields, which MAY be |
| 133 | * stored UNALIGNED in the memory. RISC systems don't like |
| 134 | * such cases very much... |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 135 | * SANITY NOTE 2a: According to Dave Miller & Alexey, it will always be |
| 136 | * aligned, so there doesn't need to be any of the unaligned |
| 137 | * stuff. It has been commented out now... --Ben |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | * |
| 139 | */ |
| 140 | int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 141 | struct packet_type *ptype, struct net_device *orig_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | { |
Evgeniy Polyakov | e7c243c | 2007-08-24 23:36:29 -0700 | [diff] [blame] | 143 | struct vlan_hdr *vhdr; |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 144 | struct vlan_rx_stats *rx_stats; |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 145 | u16 vlan_id; |
| 146 | u16 vlan_tci; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 148 | skb = skb_share_check(skb, GFP_ATOMIC); |
| 149 | if (skb == NULL) |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 150 | goto err_free; |
Evgeniy Polyakov | e7c243c | 2007-08-24 23:36:29 -0700 | [diff] [blame] | 151 | |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 152 | if (unlikely(!pskb_may_pull(skb, VLAN_HLEN))) |
| 153 | goto err_free; |
Evgeniy Polyakov | e7c243c | 2007-08-24 23:36:29 -0700 | [diff] [blame] | 154 | |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 155 | vhdr = (struct vlan_hdr *)skb->data; |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 156 | vlan_tci = ntohs(vhdr->h_vlan_TCI); |
| 157 | vlan_id = vlan_tci & VLAN_VID_MASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | rcu_read_lock(); |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 160 | skb->dev = __find_vlan_dev(dev, vlan_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | if (!skb->dev) { |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 162 | pr_debug("%s: ERROR: No net_device for VID: %u on dev: %s\n", |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 163 | __func__, vlan_id, dev->name); |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 164 | goto err_unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | } |
| 166 | |
Eric Dumazet | 2dc85e9 | 2010-01-24 19:52:24 -0800 | [diff] [blame] | 167 | rx_stats = per_cpu_ptr(vlan_dev_info(skb->dev)->vlan_rx_stats, |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 168 | smp_processor_id()); |
| 169 | rx_stats->rx_packets++; |
| 170 | rx_stats->rx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
Herbert Xu | cbb042f | 2006-03-20 22:43:56 -0800 | [diff] [blame] | 172 | skb_pull_rcsum(skb, VLAN_HLEN); |
Stephen Hemminger | a388442 | 2005-12-14 16:23:16 -0800 | [diff] [blame] | 173 | |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 174 | skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
Patrick McHardy | 40f98e1 | 2008-01-21 00:24:30 -0800 | [diff] [blame] | 176 | pr_debug("%s: priority: %u for TCI: %hu\n", |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 177 | __func__, skb->priority, vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | switch (skb->pkt_type) { |
| 180 | case PACKET_BROADCAST: /* Yeah, stats collect these together.. */ |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 181 | /* stats->broadcast ++; // no such counter :-( */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | break; |
| 183 | |
| 184 | case PACKET_MULTICAST: |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 185 | rx_stats->multicast++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | break; |
| 187 | |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 188 | case PACKET_OTHERHOST: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | /* Our lower layer thinks this is not local, let's make sure. |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 190 | * This allows the VLAN to have a different MAC than the |
| 191 | * underlying device, and still route correctly. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | */ |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 193 | if (!compare_ether_addr(eth_hdr(skb)->h_dest, |
| 194 | skb->dev->dev_addr)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | skb->pkt_type = PACKET_HOST; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | break; |
| 197 | default: |
| 198 | break; |
Stephen Hemminger | 3ff50b7 | 2007-04-20 17:09:22 -0700 | [diff] [blame] | 199 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Pavel Emelyanov | 91b4f95 | 2008-01-21 00:28:03 -0800 | [diff] [blame] | 201 | vlan_set_encap_proto(skb, vhdr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | skb = vlan_check_reorder_header(skb); |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 204 | if (!skb) { |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 205 | rx_stats->rx_errors++; |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 206 | goto err_unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | } |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 208 | |
| 209 | netif_rx(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | rcu_read_unlock(); |
Patrick McHardy | 31ffdbcb | 2008-01-21 00:27:18 -0800 | [diff] [blame] | 211 | return NET_RX_SUCCESS; |
| 212 | |
| 213 | err_unlock: |
| 214 | rcu_read_unlock(); |
| 215 | err_free: |
| 216 | kfree_skb(skb); |
| 217 | return NET_RX_DROP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | } |
| 219 | |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 220 | static inline u16 |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 221 | vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | { |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 223 | struct vlan_priority_tci_mapping *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 225 | mp = vlan_dev_info(dev)->egress_priority_map[(skb->priority & 0xF)]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | while (mp) { |
| 227 | if (mp->priority == skb->priority) { |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 228 | return mp->vlan_qos; /* This should already be shifted |
| 229 | * to mask correctly with the |
| 230 | * VLAN's TCI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | } |
| 232 | mp = mp->next; |
| 233 | } |
| 234 | return 0; |
| 235 | } |
| 236 | |
| 237 | /* |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 238 | * Create the VLAN header for an arbitrary protocol layer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | * |
| 240 | * saddr=NULL means use device source address |
| 241 | * daddr=NULL means leave destination address (eg unresolved arp) |
| 242 | * |
| 243 | * This is called when the SKB is moving down the stack towards the |
| 244 | * physical devices. |
| 245 | */ |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 246 | static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, |
| 247 | unsigned short type, |
| 248 | const void *daddr, const void *saddr, |
| 249 | unsigned int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | { |
| 251 | struct vlan_hdr *vhdr; |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 252 | unsigned int vhdrlen = 0; |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 253 | u16 vlan_tci = 0; |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 254 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
Patrick McHardy | 11a100f | 2008-07-08 15:36:57 -0700 | [diff] [blame] | 256 | if (WARN_ON(skb_headroom(skb) < dev->hard_header_len)) |
| 257 | return -ENOSPC; |
| 258 | |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 259 | if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN); |
| 261 | |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 262 | vlan_tci = vlan_dev_info(dev)->vlan_id; |
| 263 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb); |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 264 | vhdr->h_vlan_TCI = htons(vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | /* |
Octavian Purdila | bf9ae53 | 2009-12-26 11:50:59 +0000 | [diff] [blame] | 267 | * Set the protocol type. For a packet of type ETH_P_802_3/2 we |
| 268 | * put the length in here instead. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | */ |
Octavian Purdila | bf9ae53 | 2009-12-26 11:50:59 +0000 | [diff] [blame] | 270 | if (type != ETH_P_802_3 && type != ETH_P_802_2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | vhdr->h_vlan_encapsulated_proto = htons(type); |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 272 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | vhdr->h_vlan_encapsulated_proto = htons(len); |
Jerome Borsboom | 279e172 | 2007-04-13 16:12:47 -0700 | [diff] [blame] | 274 | |
| 275 | skb->protocol = htons(ETH_P_8021Q); |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 276 | type = ETH_P_8021Q; |
| 277 | vhdrlen = VLAN_HLEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | } |
| 279 | |
| 280 | /* Before delegating work to the lower layer, enter our MAC-address */ |
| 281 | if (saddr == NULL) |
| 282 | saddr = dev->dev_addr; |
| 283 | |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 284 | /* Now make the underlying real hard header */ |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 285 | dev = vlan_dev_info(dev)->real_dev; |
Patrick McHardy | 1349fe9 | 2008-07-14 22:51:19 -0700 | [diff] [blame] | 286 | rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen); |
| 287 | if (rc > 0) |
| 288 | rc += vhdrlen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | return rc; |
| 290 | } |
| 291 | |
Stephen Hemminger | 6fef4c0 | 2009-08-31 19:50:41 +0000 | [diff] [blame] | 292 | static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, |
| 293 | struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | { |
Eric Dumazet | 2f8bc32 | 2009-09-03 02:19:58 -0700 | [diff] [blame] | 295 | int i = skb_get_queue_mapping(skb); |
| 296 | struct netdev_queue *txq = netdev_get_tx_queue(dev, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 298 | unsigned int len; |
| 299 | int ret; |
David S. Miller | 55b01e8 | 2008-02-23 20:09:11 -0800 | [diff] [blame] | 300 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | /* Handle non-VLAN frames if they are sent to us, for example by DHCP. |
| 302 | * |
| 303 | * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING |
| 304 | * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs... |
| 305 | */ |
Joonwoo Park | 6ab3b48 | 2007-11-29 22:16:41 +1100 | [diff] [blame] | 306 | if (veth->h_vlan_proto != htons(ETH_P_8021Q) || |
Patrick McHardy | d80aa31 | 2008-07-14 22:51:39 -0700 | [diff] [blame] | 307 | vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR) { |
| 308 | unsigned int orig_headroom = skb_headroom(skb); |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 309 | u16 vlan_tci; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 311 | vlan_dev_info(dev)->cnt_encap_on_xmit++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 313 | vlan_tci = vlan_dev_info(dev)->vlan_id; |
| 314 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb); |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 315 | skb = __vlan_put_tag(skb, vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | if (!skb) { |
Eric Dumazet | 450c4ea | 2009-05-18 00:35:38 +0000 | [diff] [blame] | 317 | txq->tx_dropped++; |
Patrick McHardy | d80aa31 | 2008-07-14 22:51:39 -0700 | [diff] [blame] | 318 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 321 | if (orig_headroom < VLAN_HLEN) |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 322 | vlan_dev_info(dev)->cnt_inc_headroom_on_tx++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | } |
| 324 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
Arnd Bergmann | 8a83a00 | 2010-01-30 12:23:03 +0000 | [diff] [blame] | 326 | skb_set_dev(skb, vlan_dev_info(dev)->real_dev); |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 327 | len = skb->len; |
| 328 | ret = dev_queue_xmit(skb); |
| 329 | |
| 330 | if (likely(ret == NET_XMIT_SUCCESS)) { |
| 331 | txq->tx_packets++; |
| 332 | txq->tx_bytes += len; |
| 333 | } else |
| 334 | txq->tx_dropped++; |
| 335 | |
Patrick McHardy | cbbef5e | 2009-11-10 06:14:24 +0000 | [diff] [blame] | 336 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | } |
| 338 | |
Stephen Hemminger | 6fef4c0 | 2009-08-31 19:50:41 +0000 | [diff] [blame] | 339 | static netdev_tx_t vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, |
| 340 | struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | { |
Eric Dumazet | 2f8bc32 | 2009-09-03 02:19:58 -0700 | [diff] [blame] | 342 | int i = skb_get_queue_mapping(skb); |
| 343 | struct netdev_queue *txq = netdev_get_tx_queue(dev, i); |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 344 | u16 vlan_tci; |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 345 | unsigned int len; |
| 346 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 348 | vlan_tci = vlan_dev_info(dev)->vlan_id; |
| 349 | vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb); |
| 350 | skb = __vlan_hwaccel_put_tag(skb, vlan_tci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 352 | skb->dev = vlan_dev_info(dev)->real_dev; |
Eric Dumazet | 1a123a3 | 2009-09-03 00:39:16 +0000 | [diff] [blame] | 353 | len = skb->len; |
| 354 | ret = dev_queue_xmit(skb); |
| 355 | |
| 356 | if (likely(ret == NET_XMIT_SUCCESS)) { |
| 357 | txq->tx_packets++; |
| 358 | txq->tx_bytes += len; |
| 359 | } else |
| 360 | txq->tx_dropped++; |
| 361 | |
Patrick McHardy | cbbef5e | 2009-11-10 06:14:24 +0000 | [diff] [blame] | 362 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | } |
| 364 | |
Vasu Dev | 669d3e0 | 2010-03-23 14:41:45 +0000 | [diff] [blame] | 365 | static u16 vlan_dev_select_queue(struct net_device *dev, struct sk_buff *skb) |
| 366 | { |
| 367 | struct net_device *rdev = vlan_dev_info(dev)->real_dev; |
| 368 | const struct net_device_ops *ops = rdev->netdev_ops; |
| 369 | |
| 370 | return ops->ndo_select_queue(rdev, skb); |
| 371 | } |
| 372 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 373 | 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] | 374 | { |
| 375 | /* TODO: gotta make sure the underlying layer can handle it, |
| 376 | * maybe an IFF_VLAN_CAPABLE flag for devices? |
| 377 | */ |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 378 | if (vlan_dev_info(dev)->real_dev->mtu < new_mtu) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | return -ERANGE; |
| 380 | |
| 381 | dev->mtu = new_mtu; |
| 382 | |
| 383 | return 0; |
| 384 | } |
| 385 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 386 | void vlan_dev_set_ingress_priority(const struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 387 | u32 skb_prio, u16 vlan_prio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 389 | struct vlan_dev_info *vlan = vlan_dev_info(dev); |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 390 | |
| 391 | if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio) |
| 392 | vlan->nr_ingress_mappings--; |
| 393 | else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio) |
| 394 | vlan->nr_ingress_mappings++; |
| 395 | |
| 396 | vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | } |
| 398 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 399 | int vlan_dev_set_egress_priority(const struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 400 | u32 skb_prio, u16 vlan_prio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 402 | struct vlan_dev_info *vlan = vlan_dev_info(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | struct vlan_priority_tci_mapping *mp = NULL; |
| 404 | struct vlan_priority_tci_mapping *np; |
Eric Dumazet | 05423b2 | 2009-10-26 18:40:35 -0700 | [diff] [blame] | 405 | u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK; |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 406 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 407 | /* See if a priority mapping exists.. */ |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 408 | mp = vlan->egress_priority_map[skb_prio & 0xF]; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 409 | while (mp) { |
| 410 | if (mp->priority == skb_prio) { |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 411 | if (mp->vlan_qos && !vlan_qos) |
| 412 | vlan->nr_egress_mappings--; |
| 413 | else if (!mp->vlan_qos && vlan_qos) |
| 414 | vlan->nr_egress_mappings++; |
| 415 | mp->vlan_qos = vlan_qos; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 416 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | } |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 418 | mp = mp->next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | } |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 420 | |
| 421 | /* Create a new mapping then. */ |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 422 | mp = vlan->egress_priority_map[skb_prio & 0xF]; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 423 | np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL); |
| 424 | if (!np) |
| 425 | return -ENOBUFS; |
| 426 | |
| 427 | np->next = mp; |
| 428 | np->priority = skb_prio; |
Patrick McHardy | b020cb4 | 2007-06-13 12:07:22 -0700 | [diff] [blame] | 429 | np->vlan_qos = vlan_qos; |
| 430 | vlan->egress_priority_map[skb_prio & 0xF] = np; |
| 431 | if (vlan_qos) |
| 432 | vlan->nr_egress_mappings++; |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 433 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Patrick McHardy | a4bf3af4 | 2007-06-13 12:07:37 -0700 | [diff] [blame] | 436 | /* 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] | 437 | 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] | 438 | { |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 439 | struct vlan_dev_info *vlan = vlan_dev_info(dev); |
| 440 | u32 old_flags = vlan->flags; |
| 441 | |
Patrick McHardy | 5e75659 | 2009-11-25 07:54:54 +0000 | [diff] [blame] | 442 | if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | |
| 443 | VLAN_FLAG_LOOSE_BINDING)) |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 444 | return -EINVAL; |
| 445 | |
| 446 | vlan->flags = (old_flags & ~mask) | (flags & mask); |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 447 | |
| 448 | if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) { |
| 449 | if (vlan->flags & VLAN_FLAG_GVRP) |
| 450 | vlan_gvrp_request_join(dev); |
| 451 | else |
| 452 | vlan_gvrp_request_leave(dev); |
| 453 | } |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 454 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | } |
| 456 | |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 457 | 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] | 458 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 459 | strncpy(result, vlan_dev_info(dev)->real_dev->name, 23); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | } |
| 461 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 462 | static int vlan_dev_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 464 | struct vlan_dev_info *vlan = vlan_dev_info(dev); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 465 | struct net_device *real_dev = vlan->real_dev; |
| 466 | int err; |
| 467 | |
Patrick McHardy | 5e75659 | 2009-11-25 07:54:54 +0000 | [diff] [blame] | 468 | if (!(real_dev->flags & IFF_UP) && |
| 469 | !(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | return -ENETDOWN; |
| 471 | |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 472 | if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) { |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 473 | err = dev_unicast_add(real_dev, dev->dev_addr); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 474 | if (err < 0) |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 475 | goto out; |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 476 | } |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 477 | |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 478 | if (dev->flags & IFF_ALLMULTI) { |
| 479 | err = dev_set_allmulti(real_dev, 1); |
| 480 | if (err < 0) |
| 481 | goto del_unicast; |
| 482 | } |
| 483 | if (dev->flags & IFF_PROMISC) { |
| 484 | err = dev_set_promiscuity(real_dev, 1); |
| 485 | if (err < 0) |
| 486 | goto clear_allmulti; |
| 487 | } |
| 488 | |
| 489 | memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN); |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 490 | |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 491 | if (vlan->flags & VLAN_FLAG_GVRP) |
| 492 | vlan_gvrp_request_join(dev); |
| 493 | |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 494 | netif_carrier_on(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | return 0; |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 496 | |
| 497 | clear_allmulti: |
| 498 | if (dev->flags & IFF_ALLMULTI) |
| 499 | dev_set_allmulti(real_dev, -1); |
| 500 | del_unicast: |
| 501 | if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 502 | dev_unicast_delete(real_dev, dev->dev_addr); |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 503 | out: |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 504 | netif_carrier_off(dev); |
Wang Chen | 8914650 | 2008-07-14 20:59:03 -0700 | [diff] [blame] | 505 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | } |
| 507 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 508 | static int vlan_dev_stop(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | { |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 510 | struct vlan_dev_info *vlan = vlan_dev_info(dev); |
| 511 | struct net_device *real_dev = vlan->real_dev; |
| 512 | |
| 513 | if (vlan->flags & VLAN_FLAG_GVRP) |
| 514 | vlan_gvrp_request_leave(dev); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 515 | |
Patrick McHardy | 56addd6 | 2007-07-14 18:53:28 -0700 | [diff] [blame] | 516 | dev_mc_unsync(real_dev, dev); |
Chris Leech | e83a2ea | 2008-01-31 16:53:23 -0800 | [diff] [blame] | 517 | dev_unicast_unsync(real_dev, dev); |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 518 | if (dev->flags & IFF_ALLMULTI) |
| 519 | dev_set_allmulti(real_dev, -1); |
| 520 | if (dev->flags & IFF_PROMISC) |
| 521 | dev_set_promiscuity(real_dev, -1); |
| 522 | |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 523 | if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 524 | dev_unicast_delete(real_dev, dev->dev_addr); |
Patrick McHardy | 8c979c2 | 2007-07-11 19:45:24 -0700 | [diff] [blame] | 525 | |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 526 | netif_carrier_off(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | return 0; |
| 528 | } |
| 529 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 530 | 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] | 531 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 532 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 533 | struct sockaddr *addr = p; |
| 534 | int err; |
| 535 | |
| 536 | if (!is_valid_ether_addr(addr->sa_data)) |
| 537 | return -EADDRNOTAVAIL; |
| 538 | |
| 539 | if (!(dev->flags & IFF_UP)) |
| 540 | goto out; |
| 541 | |
| 542 | if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) { |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 543 | err = dev_unicast_add(real_dev, addr->sa_data); |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 544 | if (err < 0) |
| 545 | return err; |
| 546 | } |
| 547 | |
| 548 | if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 549 | dev_unicast_delete(real_dev, dev->dev_addr); |
Patrick McHardy | 39aaac1 | 2007-11-10 21:52:35 -0800 | [diff] [blame] | 550 | |
| 551 | out: |
| 552 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
| 553 | return 0; |
| 554 | } |
| 555 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 556 | 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] | 557 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 558 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 559 | const struct net_device_ops *ops = real_dev->netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | struct ifreq ifrr; |
| 561 | int err = -EOPNOTSUPP; |
| 562 | |
| 563 | strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ); |
| 564 | ifrr.ifr_ifru = ifr->ifr_ifru; |
| 565 | |
Patrick McHardy | 2029cc2 | 2008-01-21 00:26:41 -0800 | [diff] [blame] | 566 | switch (cmd) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | case SIOCGMIIPHY: |
| 568 | case SIOCGMIIREG: |
| 569 | case SIOCSMIIREG: |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 570 | if (netif_device_present(real_dev) && ops->ndo_do_ioctl) |
| 571 | err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | } |
| 574 | |
YOSHIFUJI Hideaki | 122952f | 2007-02-09 23:24:25 +0900 | [diff] [blame] | 575 | if (!err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | ifr->ifr_ifru = ifrr.ifr_ifru; |
| 577 | |
| 578 | return err; |
| 579 | } |
| 580 | |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 581 | static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa) |
| 582 | { |
| 583 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
| 584 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 585 | int err = 0; |
| 586 | |
| 587 | if (netif_device_present(real_dev) && ops->ndo_neigh_setup) |
David S. Miller | 9d40bbd | 2009-03-04 23:46:25 -0800 | [diff] [blame] | 588 | err = ops->ndo_neigh_setup(real_dev, pa); |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 589 | |
| 590 | return err; |
| 591 | } |
| 592 | |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 593 | #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| 594 | static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid, |
| 595 | struct scatterlist *sgl, unsigned int sgc) |
| 596 | { |
| 597 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
| 598 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 599 | int rc = 0; |
| 600 | |
| 601 | if (ops->ndo_fcoe_ddp_setup) |
| 602 | rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc); |
| 603 | |
| 604 | return rc; |
| 605 | } |
| 606 | |
| 607 | static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid) |
| 608 | { |
| 609 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
| 610 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 611 | int len = 0; |
| 612 | |
| 613 | if (ops->ndo_fcoe_ddp_done) |
| 614 | len = ops->ndo_fcoe_ddp_done(real_dev, xid); |
| 615 | |
| 616 | return len; |
| 617 | } |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 618 | |
| 619 | static int vlan_dev_fcoe_enable(struct net_device *dev) |
| 620 | { |
| 621 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
| 622 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 623 | int rc = -EINVAL; |
| 624 | |
| 625 | if (ops->ndo_fcoe_enable) |
| 626 | rc = ops->ndo_fcoe_enable(real_dev); |
| 627 | return rc; |
| 628 | } |
| 629 | |
| 630 | static int vlan_dev_fcoe_disable(struct net_device *dev) |
| 631 | { |
| 632 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
| 633 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 634 | int rc = -EINVAL; |
| 635 | |
| 636 | if (ops->ndo_fcoe_disable) |
| 637 | rc = ops->ndo_fcoe_disable(real_dev); |
| 638 | return rc; |
| 639 | } |
Yi Zou | d653479 | 2009-10-28 18:25:16 +0000 | [diff] [blame] | 640 | |
| 641 | static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 642 | { |
| 643 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
| 644 | const struct net_device_ops *ops = real_dev->netdev_ops; |
| 645 | int rc = -EINVAL; |
| 646 | |
| 647 | if (ops->ndo_fcoe_get_wwn) |
| 648 | rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type); |
| 649 | return rc; |
| 650 | } |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 651 | #endif |
| 652 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 653 | 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] | 654 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 655 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
Patrick McHardy | 6c78dcb | 2007-07-14 18:52:56 -0700 | [diff] [blame] | 656 | |
| 657 | if (change & IFF_ALLMULTI) |
| 658 | dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1); |
| 659 | if (change & IFF_PROMISC) |
| 660 | dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1); |
| 661 | } |
| 662 | |
Chris Leech | e83a2ea | 2008-01-31 16:53:23 -0800 | [diff] [blame] | 663 | static void vlan_dev_set_rx_mode(struct net_device *vlan_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 665 | dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev); |
Chris Leech | e83a2ea | 2008-01-31 16:53:23 -0800 | [diff] [blame] | 666 | dev_unicast_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | } |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 668 | |
| 669 | /* |
| 670 | * vlan network devices have devices nesting below it, and are a special |
| 671 | * "super class" of normal network devices; split their locks off into a |
| 672 | * separate class since they always nest. |
| 673 | */ |
| 674 | static struct lock_class_key vlan_netdev_xmit_lock_key; |
David S. Miller | cf508b1 | 2008-07-22 14:16:42 -0700 | [diff] [blame] | 675 | static struct lock_class_key vlan_netdev_addr_lock_key; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 676 | |
David S. Miller | e8a0464 | 2008-07-17 00:34:19 -0700 | [diff] [blame] | 677 | static void vlan_dev_set_lockdep_one(struct net_device *dev, |
| 678 | struct netdev_queue *txq, |
| 679 | void *_subclass) |
David S. Miller | c773e84 | 2008-07-08 23:13:53 -0700 | [diff] [blame] | 680 | { |
| 681 | lockdep_set_class_and_subclass(&txq->_xmit_lock, |
David S. Miller | e8a0464 | 2008-07-17 00:34:19 -0700 | [diff] [blame] | 682 | &vlan_netdev_xmit_lock_key, |
| 683 | *(int *)_subclass); |
David S. Miller | c773e84 | 2008-07-08 23:13:53 -0700 | [diff] [blame] | 684 | } |
| 685 | |
| 686 | static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass) |
| 687 | { |
David S. Miller | cf508b1 | 2008-07-22 14:16:42 -0700 | [diff] [blame] | 688 | lockdep_set_class_and_subclass(&dev->addr_list_lock, |
| 689 | &vlan_netdev_addr_lock_key, |
| 690 | subclass); |
David S. Miller | e8a0464 | 2008-07-17 00:34:19 -0700 | [diff] [blame] | 691 | 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] | 692 | } |
| 693 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 694 | static const struct header_ops vlan_header_ops = { |
| 695 | .create = vlan_dev_hard_header, |
| 696 | .rebuild = vlan_dev_rebuild_header, |
| 697 | .parse = eth_header_parse, |
| 698 | }; |
| 699 | |
Vasu Dev | 669d3e0 | 2010-03-23 14:41:45 +0000 | [diff] [blame] | 700 | static const struct net_device_ops vlan_netdev_ops, vlan_netdev_accel_ops, |
| 701 | vlan_netdev_ops_sq, vlan_netdev_accel_ops_sq; |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 702 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 703 | static int vlan_dev_init(struct net_device *dev) |
| 704 | { |
Patrick McHardy | 9dfebcc | 2008-01-21 00:26:07 -0800 | [diff] [blame] | 705 | struct net_device *real_dev = vlan_dev_info(dev)->real_dev; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 706 | int subclass = 0; |
| 707 | |
Jay Vosburgh | adc667e | 2009-04-25 18:03:35 -0700 | [diff] [blame] | 708 | netif_carrier_off(dev); |
| 709 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 710 | /* IFF_BROADCAST|IFF_MULTICAST; ??? */ |
Patrick McHardy | 0ed21b3 | 2008-03-26 00:15:17 -0700 | [diff] [blame] | 711 | dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI); |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 712 | dev->iflink = real_dev->ifindex; |
| 713 | dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) | |
| 714 | (1<<__LINK_STATE_DORMANT))) | |
| 715 | (1<<__LINK_STATE_PRESENT); |
| 716 | |
Patrick McHardy | 289c79a | 2008-05-23 00:22:04 -0700 | [diff] [blame] | 717 | dev->features |= real_dev->features & real_dev->vlan_features; |
Alexander Duyck | 1ae4be2 | 2008-09-11 20:17:05 -0700 | [diff] [blame] | 718 | dev->gso_max_size = real_dev->gso_max_size; |
Patrick McHardy | 5fb1357 | 2008-05-20 14:54:50 -0700 | [diff] [blame] | 719 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 720 | /* ipv6 shared card related stuff */ |
| 721 | dev->dev_id = real_dev->dev_id; |
| 722 | |
| 723 | if (is_zero_ether_addr(dev->dev_addr)) |
| 724 | memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len); |
| 725 | if (is_zero_ether_addr(dev->broadcast)) |
| 726 | memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len); |
| 727 | |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 728 | #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| 729 | dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid; |
| 730 | #endif |
| 731 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 732 | if (real_dev->features & NETIF_F_HW_VLAN_TX) { |
| 733 | dev->header_ops = real_dev->header_ops; |
| 734 | dev->hard_header_len = real_dev->hard_header_len; |
Vasu Dev | 669d3e0 | 2010-03-23 14:41:45 +0000 | [diff] [blame] | 735 | if (real_dev->netdev_ops->ndo_select_queue) |
| 736 | dev->netdev_ops = &vlan_netdev_accel_ops_sq; |
| 737 | else |
| 738 | dev->netdev_ops = &vlan_netdev_accel_ops; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 739 | } else { |
| 740 | dev->header_ops = &vlan_header_ops; |
| 741 | dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; |
Vasu Dev | 669d3e0 | 2010-03-23 14:41:45 +0000 | [diff] [blame] | 742 | if (real_dev->netdev_ops->ndo_select_queue) |
| 743 | dev->netdev_ops = &vlan_netdev_ops_sq; |
| 744 | else |
| 745 | dev->netdev_ops = &vlan_netdev_ops; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 746 | } |
| 747 | |
Joonwoo Park | 26a2523 | 2008-07-08 03:22:16 -0700 | [diff] [blame] | 748 | if (is_vlan_dev(real_dev)) |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 749 | subclass = 1; |
| 750 | |
David S. Miller | c773e84 | 2008-07-08 23:13:53 -0700 | [diff] [blame] | 751 | vlan_dev_set_lockdep_class(dev, subclass); |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 752 | |
| 753 | vlan_dev_info(dev)->vlan_rx_stats = alloc_percpu(struct vlan_rx_stats); |
| 754 | if (!vlan_dev_info(dev)->vlan_rx_stats) |
| 755 | return -ENOMEM; |
| 756 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 757 | return 0; |
| 758 | } |
| 759 | |
Pavel Emelyanov | 2355632 | 2008-04-04 12:45:12 -0700 | [diff] [blame] | 760 | static void vlan_dev_uninit(struct net_device *dev) |
| 761 | { |
| 762 | struct vlan_priority_tci_mapping *pm; |
| 763 | struct vlan_dev_info *vlan = vlan_dev_info(dev); |
| 764 | int i; |
| 765 | |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 766 | free_percpu(vlan->vlan_rx_stats); |
| 767 | vlan->vlan_rx_stats = NULL; |
Pavel Emelyanov | 2355632 | 2008-04-04 12:45:12 -0700 | [diff] [blame] | 768 | for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) { |
| 769 | while ((pm = vlan->egress_priority_map[i]) != NULL) { |
| 770 | vlan->egress_priority_map[i] = pm->next; |
| 771 | kfree(pm); |
| 772 | } |
| 773 | } |
| 774 | } |
| 775 | |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 776 | static int vlan_ethtool_get_settings(struct net_device *dev, |
| 777 | struct ethtool_cmd *cmd) |
| 778 | { |
| 779 | const struct vlan_dev_info *vlan = vlan_dev_info(dev); |
Patrick McHardy | b1b67dd | 2009-04-20 04:49:28 +0000 | [diff] [blame] | 780 | return dev_ethtool_get_settings(vlan->real_dev, cmd); |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | static void vlan_ethtool_get_drvinfo(struct net_device *dev, |
| 784 | struct ethtool_drvinfo *info) |
| 785 | { |
| 786 | strcpy(info->driver, vlan_fullname); |
| 787 | strcpy(info->version, vlan_version); |
| 788 | strcpy(info->fw_version, "N/A"); |
| 789 | } |
| 790 | |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 791 | static u32 vlan_ethtool_get_rx_csum(struct net_device *dev) |
| 792 | { |
| 793 | const struct vlan_dev_info *vlan = vlan_dev_info(dev); |
Patrick McHardy | b1b67dd | 2009-04-20 04:49:28 +0000 | [diff] [blame] | 794 | return dev_ethtool_get_rx_csum(vlan->real_dev); |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 795 | } |
| 796 | |
Patrick McHardy | 19b9a4e | 2008-07-14 22:51:01 -0700 | [diff] [blame] | 797 | static u32 vlan_ethtool_get_flags(struct net_device *dev) |
| 798 | { |
| 799 | const struct vlan_dev_info *vlan = vlan_dev_info(dev); |
Patrick McHardy | b1b67dd | 2009-04-20 04:49:28 +0000 | [diff] [blame] | 800 | return dev_ethtool_get_flags(vlan->real_dev); |
Patrick McHardy | 19b9a4e | 2008-07-14 22:51:01 -0700 | [diff] [blame] | 801 | } |
| 802 | |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 803 | static struct net_device_stats *vlan_dev_get_stats(struct net_device *dev) |
| 804 | { |
| 805 | struct net_device_stats *stats = &dev->stats; |
| 806 | |
| 807 | dev_txq_stats_fold(dev, stats); |
| 808 | |
| 809 | if (vlan_dev_info(dev)->vlan_rx_stats) { |
| 810 | struct vlan_rx_stats *p, rx = {0}; |
| 811 | int i; |
| 812 | |
| 813 | for_each_possible_cpu(i) { |
| 814 | p = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats, i); |
| 815 | rx.rx_packets += p->rx_packets; |
| 816 | rx.rx_bytes += p->rx_bytes; |
| 817 | rx.rx_errors += p->rx_errors; |
| 818 | rx.multicast += p->multicast; |
| 819 | } |
| 820 | stats->rx_packets = rx.rx_packets; |
| 821 | stats->rx_bytes = rx.rx_bytes; |
| 822 | stats->rx_errors = rx.rx_errors; |
| 823 | stats->multicast = rx.multicast; |
| 824 | } |
| 825 | return stats; |
| 826 | } |
| 827 | |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 828 | static const struct ethtool_ops vlan_ethtool_ops = { |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 829 | .get_settings = vlan_ethtool_get_settings, |
| 830 | .get_drvinfo = vlan_ethtool_get_drvinfo, |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 831 | .get_link = ethtool_op_get_link, |
| 832 | .get_rx_csum = vlan_ethtool_get_rx_csum, |
Patrick McHardy | 19b9a4e | 2008-07-14 22:51:01 -0700 | [diff] [blame] | 833 | .get_flags = vlan_ethtool_get_flags, |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 834 | }; |
| 835 | |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 836 | static const struct net_device_ops vlan_netdev_ops = { |
| 837 | .ndo_change_mtu = vlan_dev_change_mtu, |
| 838 | .ndo_init = vlan_dev_init, |
| 839 | .ndo_uninit = vlan_dev_uninit, |
| 840 | .ndo_open = vlan_dev_open, |
| 841 | .ndo_stop = vlan_dev_stop, |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 842 | .ndo_start_xmit = vlan_dev_hard_start_xmit, |
| 843 | .ndo_validate_addr = eth_validate_addr, |
| 844 | .ndo_set_mac_address = vlan_dev_set_mac_address, |
| 845 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, |
| 846 | .ndo_set_multicast_list = vlan_dev_set_rx_mode, |
| 847 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
| 848 | .ndo_do_ioctl = vlan_dev_ioctl, |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 849 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 850 | .ndo_get_stats = vlan_dev_get_stats, |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 851 | #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| 852 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
| 853 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 854 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, |
| 855 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, |
Yi Zou | d653479 | 2009-10-28 18:25:16 +0000 | [diff] [blame] | 856 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 857 | #endif |
Eric Dumazet | f7d1b9f | 2008-12-25 16:45:19 -0800 | [diff] [blame] | 858 | }; |
| 859 | |
| 860 | static const struct net_device_ops vlan_netdev_accel_ops = { |
| 861 | .ndo_change_mtu = vlan_dev_change_mtu, |
| 862 | .ndo_init = vlan_dev_init, |
| 863 | .ndo_uninit = vlan_dev_uninit, |
| 864 | .ndo_open = vlan_dev_open, |
| 865 | .ndo_stop = vlan_dev_stop, |
| 866 | .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit, |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 867 | .ndo_validate_addr = eth_validate_addr, |
| 868 | .ndo_set_mac_address = vlan_dev_set_mac_address, |
| 869 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, |
| 870 | .ndo_set_multicast_list = vlan_dev_set_rx_mode, |
| 871 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
| 872 | .ndo_do_ioctl = vlan_dev_ioctl, |
Frank Blaschka | cc883d1 | 2009-01-08 10:50:20 -0800 | [diff] [blame] | 873 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 874 | .ndo_get_stats = vlan_dev_get_stats, |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 875 | #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| 876 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
| 877 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, |
Yi Zou | 0af46d9 | 2009-08-31 12:31:55 +0000 | [diff] [blame] | 878 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, |
| 879 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, |
Yi Zou | d653479 | 2009-10-28 18:25:16 +0000 | [diff] [blame] | 880 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, |
Vasu Dev | b85daa5 | 2009-08-14 12:41:07 +0000 | [diff] [blame] | 881 | #endif |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 882 | }; |
| 883 | |
Vasu Dev | 669d3e0 | 2010-03-23 14:41:45 +0000 | [diff] [blame] | 884 | static const struct net_device_ops vlan_netdev_ops_sq = { |
| 885 | .ndo_select_queue = vlan_dev_select_queue, |
| 886 | .ndo_change_mtu = vlan_dev_change_mtu, |
| 887 | .ndo_init = vlan_dev_init, |
| 888 | .ndo_uninit = vlan_dev_uninit, |
| 889 | .ndo_open = vlan_dev_open, |
| 890 | .ndo_stop = vlan_dev_stop, |
| 891 | .ndo_start_xmit = vlan_dev_hard_start_xmit, |
| 892 | .ndo_validate_addr = eth_validate_addr, |
| 893 | .ndo_set_mac_address = vlan_dev_set_mac_address, |
| 894 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, |
| 895 | .ndo_set_multicast_list = vlan_dev_set_rx_mode, |
| 896 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
| 897 | .ndo_do_ioctl = vlan_dev_ioctl, |
| 898 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
| 899 | .ndo_get_stats = vlan_dev_get_stats, |
| 900 | #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| 901 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
| 902 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, |
| 903 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, |
| 904 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, |
| 905 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, |
| 906 | #endif |
| 907 | }; |
| 908 | |
| 909 | static const struct net_device_ops vlan_netdev_accel_ops_sq = { |
| 910 | .ndo_select_queue = vlan_dev_select_queue, |
| 911 | .ndo_change_mtu = vlan_dev_change_mtu, |
| 912 | .ndo_init = vlan_dev_init, |
| 913 | .ndo_uninit = vlan_dev_uninit, |
| 914 | .ndo_open = vlan_dev_open, |
| 915 | .ndo_stop = vlan_dev_stop, |
| 916 | .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit, |
| 917 | .ndo_validate_addr = eth_validate_addr, |
| 918 | .ndo_set_mac_address = vlan_dev_set_mac_address, |
| 919 | .ndo_set_rx_mode = vlan_dev_set_rx_mode, |
| 920 | .ndo_set_multicast_list = vlan_dev_set_rx_mode, |
| 921 | .ndo_change_rx_flags = vlan_dev_change_rx_flags, |
| 922 | .ndo_do_ioctl = vlan_dev_ioctl, |
| 923 | .ndo_neigh_setup = vlan_dev_neigh_setup, |
| 924 | .ndo_get_stats = vlan_dev_get_stats, |
| 925 | #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) |
| 926 | .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, |
| 927 | .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, |
| 928 | .ndo_fcoe_enable = vlan_dev_fcoe_enable, |
| 929 | .ndo_fcoe_disable = vlan_dev_fcoe_disable, |
| 930 | .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, |
| 931 | #endif |
| 932 | }; |
| 933 | |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 934 | void vlan_setup(struct net_device *dev) |
| 935 | { |
| 936 | ether_setup(dev); |
| 937 | |
| 938 | dev->priv_flags |= IFF_802_1Q_VLAN; |
Eric Dumazet | 93f154b | 2009-05-18 22:19:19 -0700 | [diff] [blame] | 939 | dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 940 | dev->tx_queue_len = 0; |
| 941 | |
Stephen Hemminger | 656299f | 2008-11-19 21:53:47 -0800 | [diff] [blame] | 942 | dev->netdev_ops = &vlan_netdev_ops; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 943 | dev->destructor = free_netdev; |
Patrick McHardy | 75b8846 | 2008-07-08 03:22:42 -0700 | [diff] [blame] | 944 | dev->ethtool_ops = &vlan_ethtool_ops; |
Patrick McHardy | ef3eb3e | 2008-01-21 00:22:11 -0800 | [diff] [blame] | 945 | |
| 946 | memset(dev->broadcast, 0, ETH_ALEN); |
| 947 | } |