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2011-10-31net: Fix files explicitly needing to include module.hPaul Gortmaker1-0/+1
With calls to modular infrastructure, these files really needs the full module.h header. Call it out so some of the cleanups of implicit and unrequired includes elsewhere can be cleaned up. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2010-11-16vlan: lockless transmit pathEric Dumazet1-20/+0
vlan is a stacked device, like tunnels. We should use the lockless mechanism we are using in tunnels and loopback. This patch completely removes locking in TX path. tx stat counters are added into existing percpu stat structure, renamed from vlan_rx_stats to vlan_pcpu_stats. Note : this partially reverts commit 2e59af3dcbdf (vlan: multiqueue vlan device) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-26vlan: support "loose binding" to the underlying network devicePatrick McHardy1-1/+2
Currently the UP/DOWN state of VLANs is synchronized to the state of the underlying device, meaning all VLANs are set down once the underlying device is set down. This causes all routes to the VLAN devices to vanish. Add a flag to specify a "loose binding" mode, in which only the operstate is transfered, but the VLAN device state is independant. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08net: Support specifying the network namespace upon device creation.Eric W. Biederman1-2/+2
There is no good reason to not support userspace specifying the network namespace during device creation, and it makes it easier to create a network device and pass it to a child network namespace with a well known name. We have to be careful to ensure that the target network namespace for the new device exists through the life of the call. To keep that logic clear I have factored out the network namespace grabbing logic into rtnl_link_get_net. In addtion we need to continue to pass the source network namespace to the rtnl_link_ops.newlink method so that we can find the base device source network namespace. Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2009-09-26net: fix vlan_get_size to include vlan_flags sizeJohn Fastabend1-0/+1
Fix vlan_get_size to include vlan->flags. Currently, the size of the vlan flags is not included in the nlmsg size. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02vlan: multiqueue vlan deviceEric Dumazet1-0/+20
vlan devices are currently not multi-queue capable. We can do that with a new rtnl_link_ops method, get_tx_queues(), called from rtnl_create_link() This new method gets num_tx_queues/real_num_tx_queues from real device. register_vlan_device() is also handled. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-05vlan: Add GVRP supportPatrick McHardy1-1/+2
Add GVRP support for dynamically registering VLANs with switches. By default GVRP is disabled because we only support the applicant-only participant model, which means it should not be enabled on vlans that are members of a bridge. Since there is currently no way to cleanly determine that, the user is responsible for enabling it. The code is pretty small and low impact, its wrapped in a config option though because it depends on the GARP implementation and the STP core. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-05vlan: Change vlan_dev_set_vlan_flag() to handle multiple flags at oncePatrick McHardy1-3/+1
Change vlan_dev_set_vlan_flag() to handle multiple flags at once and rename to vlan_dev_change_flags(). This allows to to use it from the netlink interface, which in turn allows to handle necessary adjustments when changing flags centrally. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Allow vlan devices registration in net namespaces.Pavel Emelyanov1-1/+1
This one is similar to what I've done for TUN - set the proper net after device allocation and clean VLANs on net exit (use the rtnl_kill_links helper finally). Plus, drop explicit init_net usage and net != &init_net checks. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Turn VLAN_DEV_INFO into inline functionPatrick McHardy1-5/+5
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[VLAN]: Simplify vlan unregistrationPatrick McHardy1-6/+1
Keep track of the number of VLAN devices in a vlan group. This allows to have the caller sense when the group is going to be destroyed and stop using it, which in turn allows to remove the wrapper around unregister_vlan_dev for the NETDEV_UNREGISTER notifier and avoid iterating over all possible VLAN ids whenever a device in unregistered. Also fix what looks like a use-after-free (but is actually safe since we're holding the RTNL), the real_dev reference should not be dropped while we still use it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make the device list and device lookups per namespace.Eric W. Biederman1-1/+2
This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-11[RTNETLINK]: rtnl_link: allow specifying initial device addressPatrick McHardy1-0/+7
Drivers need to validate the initial addresses in their netlink attribute validation function or manually reject them if they can't support this. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[VLAN]: Use rtnl_link APIPatrick McHardy1-0/+236
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>