Eric Lee / smarc-fsl-linux-kernel

27 Jun, 2017

3 commits

14 Apr, 2017

1 commit

17 Jul, 2016

1 commit

  • 18d3df3ea   vlan: use a valid default mtu value for vlan over macsec ... Browse Code »

    macsec can't cope with mtu frames which need vlan tag insertion, and
    vlan device set the default mtu equal to the underlying dev's one.
    By default vlan over macsec devices use invalid mtu, dropping
    all the large packets.
    This patch adds a netif helper to check if an upper vlan device
    needs mtu reduction. The helper is used during vlan devices
    initialization to set a valid default and during mtu updating to
    forbid invalid, too bit, mtu values.
    The helper currently only check if the lower dev is a macsec device,
    if we get more users, we need to update only the helper (possibly
    reserving an additional IFF bit).

    Signed-off-by: Paolo Abeni
    Signed-off-by: David S. Miller

    Paolo Abeni
     

24 Jan, 2015

1 commit

13 Mar, 2014

1 commit

09 Oct, 2013

1 commit

20 Apr, 2013

2 commits

  • 8ad227ff8   net: vlan: add 802.1ad support ... Browse Code »

    Add support for 802.1ad VLAN devices. This mainly consists of checking for
    ETH_P_8021AD in addition to ETH_P_8021Q in a couple of places and check
    offloading capabilities based on the used protocol.

    Configuration is done using "ip link":

    # ip link add link eth0 eth0.1000 \
    type vlan proto 802.1ad id 1000
    # ip link add link eth0.1000 eth0.1000.1000 \
    type vlan proto 802.1q id 1000

    52:54:00:12:34:56 > 92:b1:54:28:e4:8c, ethertype 802.1Q (0x8100), length 106: vlan 1000, p 0, ethertype 802.1Q, vlan 1000, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
    20.1.0.2 > 20.1.0.1: ICMP echo request, id 3003, seq 8, length 64
    92:b1:54:28:e4:8c > 52:54:00:12:34:56, ethertype 802.1Q-QinQ (0x88a8), length 106: vlan 1000, p 0, ethertype 802.1Q, vlan 1000, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 47944, offset 0, flags [none], proto ICMP (1), length 84)
    20.1.0.1 > 20.1.0.2: ICMP echo reply, id 3003, seq 8, length 64

    Signed-off-by: Patrick McHardy
    Signed-off-by: David S. Miller

    Patrick McHardy
     
  • 1fd9b1fc3   net: vlan: prepare for 802.1ad support ... Browse Code »

    Make the encapsulation protocol value a property of VLAN devices and change
    the device lookup functions to take the protocol value into account.

    Signed-off-by: Patrick McHardy
    Signed-off-by: David S. Miller

    Patrick McHardy
     

11 Feb, 2013

1 commit

02 Apr, 2012

1 commit

09 Dec, 2011

1 commit

01 Nov, 2011

1 commit

17 Nov, 2010

1 commit

  • 4af429d29   vlan: lockless transmit path ... Browse Code »

    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
    Cc: Patrick McHardy
    Signed-off-by: David S. Miller

    Eric Dumazet
     

27 Nov, 2009

1 commit

  • 5e7565930   vlan: support "loose binding" to the underlying network device ... Browse Code »

    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
    Signed-off-by: David S. Miller

    Patrick McHardy
     

08 Nov, 2009

1 commit

  • 81adee47d   net: Support specifying the network namespace upon device creation. ... Browse Code »

    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
    Acked-by: Eric Dumazet

    Eric W. Biederman
     

27 Sep, 2009

1 commit

03 Sep, 2009

1 commit

  • 2e59af3dc   vlan: multiqueue vlan device ... Browse Code »

    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
    Signed-off-by: David S. Miller

    Eric Dumazet
     

06 Jul, 2008

2 commits

  • 70c03b49b   vlan: Add GVRP support ... Browse Code »

    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
    Signed-off-by: David S. Miller

    Patrick McHardy
     
  • b3ce0325f   vlan: Change vlan_dev_set_vlan_flag() to handle multiple flags at once ... Browse Code »

    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
    Signed-off-by: David S. Miller

    Patrick McHardy
     

16 Apr, 2008

1 commit

29 Jan, 2008

2 commits

  • 9dfebcc64   [VLAN]: Turn VLAN_DEV_INFO into inline function ... Browse Code »

    Signed-off-by: Patrick McHardy
    Signed-off-by: David S. Miller

    Patrick McHardy
     
  • af3015170   [VLAN]: Simplify vlan unregistration ... Browse Code »

    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
    Signed-off-by: David S. Miller

    Patrick McHardy
     

11 Oct, 2007

1 commit

  • 881d966b4   [NET]: Make the device list and device lookups per namespace. ... Browse Code »

    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
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

12 Jul, 2007

1 commit

11 Jul, 2007

1 commit