/* Global VLAN variables */
-int vlan_net_id;
+int vlan_net_id __read_mostly;
/* Our listing of VLAN group(s) */
static struct hlist_head vlan_group_hash[VLAN_GRP_HASH_SIZE];
-static char vlan_fullname[] = "802.1Q VLAN Support";
-static char vlan_version[] = DRV_VERSION;
-static char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
-static char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
+const char vlan_fullname[] = "802.1Q VLAN Support";
+const char vlan_version[] = DRV_VERSION;
+static const char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
+static const char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
-static struct packet_type vlan_packet_type = {
- .type = __constant_htons(ETH_P_8021Q),
+static struct packet_type vlan_packet_type __read_mostly = {
+ .type = cpu_to_be16(ETH_P_8021Q),
.func = vlan_skb_recv, /* VLAN receive method */
};
vlan_group_free(container_of(rcu, struct vlan_group, rcu));
}
-void unregister_vlan_dev(struct net_device *dev)
+void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
{
struct vlan_dev_info *vlan = vlan_dev_info(dev);
struct net_device *real_dev = vlan->real_dev;
+ const struct net_device_ops *ops = real_dev->netdev_ops;
struct vlan_group *grp;
u16 vlan_id = vlan->vlan_id;
* HW accelerating devices or SW vlan input packet processing.
*/
if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
- real_dev->vlan_rx_kill_vid(real_dev, vlan_id);
+ ops->ndo_vlan_rx_kill_vid(real_dev, vlan_id);
- vlan_group_set_device(grp, vlan_id, NULL);
grp->nr_vlans--;
- synchronize_net();
+ vlan_group_set_device(grp, vlan_id, NULL);
+ if (!grp->killall)
+ synchronize_net();
- unregister_netdevice(dev);
+ unregister_netdevice_queue(dev, head);
/* If the group is now empty, kill off the group. */
if (grp->nr_vlans == 0) {
vlan_gvrp_uninit_applicant(real_dev);
if (real_dev->features & NETIF_F_HW_VLAN_RX)
- real_dev->vlan_rx_register(real_dev, NULL);
+ ops->ndo_vlan_rx_register(real_dev, NULL);
hlist_del_rcu(&grp->hlist);
dev_put(real_dev);
}
-static void vlan_transfer_operstate(const struct net_device *dev,
- struct net_device *vlandev)
-{
- /* Have to respect userspace enforced dormant state
- * of real device, also must allow supplicant running
- * on VLAN device
- */
- if (dev->operstate == IF_OPER_DORMANT)
- netif_dormant_on(vlandev);
- else
- netif_dormant_off(vlandev);
-
- if (netif_carrier_ok(dev)) {
- if (!netif_carrier_ok(vlandev))
- netif_carrier_on(vlandev);
- } else {
- if (netif_carrier_ok(vlandev))
- netif_carrier_off(vlandev);
- }
-}
-
int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id)
{
- char *name = real_dev->name;
+ const char *name = real_dev->name;
+ const struct net_device_ops *ops = real_dev->netdev_ops;
if (real_dev->features & NETIF_F_VLAN_CHALLENGED) {
pr_info("8021q: VLANs not supported on %s\n", name);
return -EOPNOTSUPP;
}
- if ((real_dev->features & NETIF_F_HW_VLAN_RX) &&
- !real_dev->vlan_rx_register) {
+ if ((real_dev->features & NETIF_F_HW_VLAN_RX) && !ops->ndo_vlan_rx_register) {
pr_info("8021q: device %s has buggy VLAN hw accel\n", name);
return -EOPNOTSUPP;
}
if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) &&
- (!real_dev->vlan_rx_add_vid || !real_dev->vlan_rx_kill_vid)) {
+ (!ops->ndo_vlan_rx_add_vid || !ops->ndo_vlan_rx_kill_vid)) {
pr_info("8021q: Device %s has buggy VLAN hw accel\n", name);
return -EOPNOTSUPP;
}
- /* The real device must be up and operating in order to
- * assosciate a VLAN device with it.
- */
- if (!(real_dev->flags & IFF_UP))
- return -ENETDOWN;
-
if (__find_vlan_dev(real_dev, vlan_id) != NULL)
return -EEXIST;
{
struct vlan_dev_info *vlan = vlan_dev_info(dev);
struct net_device *real_dev = vlan->real_dev;
+ const struct net_device_ops *ops = real_dev->netdev_ops;
u16 vlan_id = vlan->vlan_id;
struct vlan_group *grp, *ngrp = NULL;
int err;
/* Account for reference in struct vlan_dev_info */
dev_hold(real_dev);
- vlan_transfer_operstate(real_dev, dev);
+ netif_stacked_transfer_operstate(real_dev, dev);
linkwatch_fire_event(dev); /* _MUST_ call rfc2863_policy() */
/* So, got the sucker initialized, now lets place
grp->nr_vlans++;
if (ngrp && real_dev->features & NETIF_F_HW_VLAN_RX)
- real_dev->vlan_rx_register(real_dev, ngrp);
+ ops->ndo_vlan_rx_register(real_dev, ngrp);
if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
- real_dev->vlan_rx_add_vid(real_dev, vlan_id);
+ ops->ndo_vlan_rx_add_vid(real_dev, vlan_id);
return 0;
if (ngrp)
vlan_gvrp_uninit_applicant(real_dev);
out_free_group:
- if (ngrp)
- vlan_group_free(ngrp);
+ if (ngrp) {
+ hlist_del_rcu(&ngrp->hlist);
+ /* Free the group, after all cpu's are done. */
+ call_rcu(&ngrp->rcu, vlan_rcu_free);
+ }
return err;
}
snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id);
}
- new_dev = alloc_netdev(sizeof(struct vlan_dev_info), name,
- vlan_setup);
+ new_dev = alloc_netdev_mq(sizeof(struct vlan_dev_info), name,
+ vlan_setup, real_dev->num_tx_queues);
if (new_dev == NULL)
return -ENOBUFS;
+ new_dev->real_num_tx_queues = real_dev->real_num_tx_queues;
dev_net_set(new_dev, net);
/* need 4 bytes for extra VLAN header info,
* hope the underlying device can handle it.
* the new address */
if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
!compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
- dev_unicast_delete(dev, vlandev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(dev, vlandev->dev_addr);
/* vlan address was equal to the old address and is different from
* the new address */
if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
- dev_unicast_add(dev, vlandev->dev_addr, ETH_ALEN);
+ dev_unicast_add(dev, vlandev->dev_addr);
memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
}
vlandev->features &= ~dev->vlan_features;
vlandev->features |= dev->features & dev->vlan_features;
vlandev->gso_max_size = dev->gso_max_size;
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+ vlandev->fcoe_ddp_xid = dev->fcoe_ddp_xid;
+#endif
if (old_features != vlandev->features)
netdev_features_change(vlandev);
struct vlan_group *grp;
int i, flgs;
struct net_device *vlandev;
+ struct vlan_dev_info *vlan;
+ LIST_HEAD(list);
if (is_vlan_dev(dev))
__vlan_device_event(dev, event);
if (!vlandev)
continue;
- vlan_transfer_operstate(dev, vlandev);
+ netif_stacked_transfer_operstate(dev, vlandev);
}
break;
}
break;
+ case NETDEV_CHANGEMTU:
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ vlandev = vlan_group_get_device(grp, i);
+ if (!vlandev)
+ continue;
+
+ if (vlandev->mtu <= dev->mtu)
+ continue;
+
+ dev_set_mtu(vlandev, dev->mtu);
+ }
+ break;
+
case NETDEV_FEAT_CHANGE:
/* Propagate device features to underlying device */
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
if (!(flgs & IFF_UP))
continue;
- dev_change_flags(vlandev, flgs & ~IFF_UP);
+ vlan = vlan_dev_info(vlandev);
+ if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
+ dev_change_flags(vlandev, flgs & ~IFF_UP);
+ netif_stacked_transfer_operstate(dev, vlandev);
}
break;
if (flgs & IFF_UP)
continue;
- dev_change_flags(vlandev, flgs | IFF_UP);
+ vlan = vlan_dev_info(vlandev);
+ if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
+ dev_change_flags(vlandev, flgs | IFF_UP);
+ netif_stacked_transfer_operstate(dev, vlandev);
}
break;
case NETDEV_UNREGISTER:
/* Delete all VLANs for this dev. */
+ grp->killall = 1;
+
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
vlandev = vlan_group_get_device(grp, i);
if (!vlandev)
if (grp->nr_vlans == 1)
i = VLAN_GROUP_ARRAY_LEN;
- unregister_vlan_dev(vlandev);
+ unregister_vlan_dev(vlandev, &list);
}
+ unregister_netdevice_many(&list);
break;
}
err = -EPERM;
if (!capable(CAP_NET_ADMIN))
break;
- unregister_vlan_dev(dev);
+ unregister_vlan_dev(dev, NULL);
err = 0;
break;
return err;
}
-static int vlan_init_net(struct net *net)
+static int __net_init vlan_init_net(struct net *net)
{
+ struct vlan_net *vn = net_generic(net, vlan_net_id);
int err;
- struct vlan_net *vn;
-
- err = -ENOMEM;
- vn = kzalloc(sizeof(struct vlan_net), GFP_KERNEL);
- if (vn == NULL)
- goto err_alloc;
-
- err = net_assign_generic(net, vlan_net_id, vn);
- if (err < 0)
- goto err_assign;
vn->name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
err = vlan_proc_init(net);
- if (err < 0)
- goto err_proc;
- return 0;
-
-err_proc:
- /* nothing */
-err_assign:
- kfree(vn);
-err_alloc:
return err;
}
-static void vlan_exit_net(struct net *net)
+static void __net_exit vlan_exit_net(struct net *net)
{
- struct vlan_net *vn;
-
- vn = net_generic(net, vlan_net_id);
- rtnl_kill_links(net, &vlan_link_ops);
vlan_proc_cleanup(net);
- kfree(vn);
}
static struct pernet_operations vlan_net_ops = {
.init = vlan_init_net,
.exit = vlan_exit_net,
+ .id = &vlan_net_id,
+ .size = sizeof(struct vlan_net),
};
static int __init vlan_proto_init(void)
pr_info("%s v%s %s\n", vlan_fullname, vlan_version, vlan_copyright);
pr_info("All bugs added by %s\n", vlan_buggyright);
- err = register_pernet_gen_device(&vlan_net_id, &vlan_net_ops);
+ err = register_pernet_subsys(&vlan_net_ops);
if (err < 0)
goto err0;
err3:
unregister_netdevice_notifier(&vlan_notifier_block);
err2:
- unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
+ unregister_pernet_subsys(&vlan_net_ops);
err0:
return err;
}
for (i = 0; i < VLAN_GRP_HASH_SIZE; i++)
BUG_ON(!hlist_empty(&vlan_group_hash[i]));
- unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
- synchronize_net();
+ unregister_pernet_subsys(&vlan_net_ops);
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
vlan_gvrp_uninit();
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff