Eric Lee / smarc-fsl-linux-kernel

14 Mar, 2013

1 commit

  • 612d2b4fe   batman-adv: network coding - save overheard and tx packets for decoding ... Browse Code »

    To be able to decode a network coded packet, a node must already know
    one of the two coded packets. This is done by buffering skbs before
    transmission and buffering packets sniffed with promiscuous mode from
    other hosts.

    Packets are kept in a buffer similar to the one with forward-skbs: A
    hash table, where each entry, which corresponds to a src-dst pair, has a
    linked list packets.

    Signed-off-by: Martin Hundebøll
    Signed-off-by: Marek Lindner
    Signed-off-by: Antonio Quartulli

    Martin Hundebøll
     

28 Feb, 2013

1 commit

  • b67bfe0d4   hlist: drop the node parameter from iterators ... Browse Code »

    I'm not sure why, but the hlist for each entry iterators were conceived

    list_for_each_entry(pos, head, member)

    The hlist ones were greedy and wanted an extra parameter:

    hlist_for_each_entry(tpos, pos, head, member)

    Why did they need an extra pos parameter? I'm not quite sure. Not only
    they don't really need it, it also prevents the iterator from looking
    exactly like the list iterator, which is unfortunate.

    Besides the semantic patch, there was some manual work required:

    - Fix up the actual hlist iterators in linux/list.h
    - Fix up the declaration of other iterators based on the hlist ones.
    - A very small amount of places were using the 'node' parameter, this
    was modified to use 'obj->member' instead.
    - Coccinelle didn't handle the hlist_for_each_entry_safe iterator
    properly, so those had to be fixed up manually.

    The semantic patch which is mostly the work of Peter Senna Tschudin is here:

    @@
    iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;

    type T;
    expression a,c,d,e;
    identifier b;
    statement S;
    @@

    -T b;

    [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
    [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
    [akpm@linux-foundation.org: checkpatch fixes]
    [akpm@linux-foundation.org: fix warnings]
    [akpm@linux-foudnation.org: redo intrusive kvm changes]
    Tested-by: Peter Senna Tschudin
    Acked-by: Paul E. McKenney
    Signed-off-by: Sasha Levin
    Cc: Wu Fengguang
    Cc: Marcelo Tosatti
    Cc: Gleb Natapov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sasha Levin
     

19 Jan, 2013

2 commits

12 Jan, 2013

1 commit

30 Nov, 2012

1 commit

21 Nov, 2012

1 commit

  • bb351ba0b   batman-adv: Add wrapper to look up neighbor and send skb ... Browse Code »

    By adding batadv_send_skb_to_orig() in send.c, we can remove duplicate
    code that looks up the next hop and then calls batadv_send_skb_packet().

    Furthermore, this prepares the upcoming new implementation of
    fragmentation, which requires the next hop to route packets.

    Please note that this doesn't entirely remove the next-hop lookup in
    routing.c and unicast.c, since it is used by the current fragmentation
    code.

    Also note that the next-hop info is removed from debug messages in
    translation-table.c, since it is looked up elsewhere.

    Signed-off-by: Martin Hundebøll
    Signed-off-by: Marek Lindner
    Signed-off-by: Antonio Quartulli

    Martin Hundebøll
     

08 Nov, 2012

1 commit

  • c384ea3ec   batman-adv: Distributed ARP Table - add snooping functions for ARP messages ... Browse Code »

    In case of an ARP message going in or out the soft_iface, it is intercepted and
    a special action is performed. In particular the DHT helper functions previously
    implemented are used to store all the ARP entries belonging to the network in
    order to provide a fast and unicast lookup instead of the classic broadcast
    flooding mechanism.
    Each node stores the entries it is responsible for (following the DHT rules) in
    its soft_iface ARP table. This makes it possible to reuse the kernel data
    structures and functions for ARP management.

    Signed-off-by: Antonio Quartulli

    Antonio Quartulli
     

23 Aug, 2012

1 commit

02 Jul, 2012

4 commits

28 Jun, 2012

2 commits

25 Jun, 2012

3 commits

21 Jun, 2012

4 commits

  • 9cfc7bd60   batman-adv: Reformat multiline comments to consistent style ... Browse Code »

    batman-adv doesn't follow the style for multiline comments that David S. Miller
    prefers. All comments should be reformatted to follow this consistent style to
    make the code slightly more readable.

    Signed-off-by: Sven Eckelmann

    Sven Eckelmann
     
  • 3193e8fdf   batman-adv: Prefix main non-static functions with batadv_ ... Browse Code »

    batman-adv can be compiled as part of the kernel instead of an module. In that
    case the linker will see all non-static symbols of batman-adv and all other
    non-static symbols of the kernel. This could lead to symbol collisions. A
    prefix for the batman-adv symbols that defines their private namespace avoids
    such a problem.

    Reported-by: David Miller
    Signed-off-by: Sven Eckelmann

    Sven Eckelmann
     
  • 04b482a21   batman-adv: Prefix soft-interface non-static functions with batadv_ ... Browse Code »

    batman-adv can be compiled as part of the kernel instead of an module. In that
    case the linker will see all non-static symbols of batman-adv and all other
    non-static symbols of the kernel. This could lead to symbol collisions. A
    prefix for the batman-adv symbols that defines their private namespace avoids
    such a problem.

    Reported-by: David Miller
    Signed-off-by: Sven Eckelmann

    Sven Eckelmann
     
  • 9455e34cb   batman-adv: Prefix send non-static functions with batadv_ ... Browse Code »

    batman-adv can be compiled as part of the kernel instead of an module. In that
    case the linker will see all non-static symbols of batman-adv and all other
    non-static symbols of the kernel. This could lead to symbol collisions. A
    prefix for the batman-adv symbols that defines their private namespace avoids
    such a problem.

    Reported-by: David Miller
    Signed-off-by: Sven Eckelmann

    Sven Eckelmann
     

19 Jun, 2012

2 commits

14 May, 2012

1 commit

11 May, 2012

1 commit

18 Apr, 2012

2 commits

11 Mar, 2012

2 commits

17 Feb, 2012

3 commits

08 Sep, 2011

2 commits

22 Aug, 2011

1 commit

08 Jul, 2011

1 commit

  • 058d0e269   batman-adv: keep local table consistency for further TT_RESPONSE ... Browse Code »

    To keep transtable consistency among all the nodes, an originator must
    not send not yet announced clients within a full table TT_RESPONSE.
    Instead, deleted client have to be kept in the table in order to be sent
    within an immediate TT_RESPONSE. In this way all the nodes in the
    network will always provide the same response for the same request.

    All the modification are committed at the next ttvn increment event.

    Signed-off-by: Antonio Quartulli
    Signed-off-by: Marek Lindner

    Antonio Quartulli
     

05 Jul, 2011

2 commits

20 Jun, 2011

1 commit

  • cc47f66e6   batman-adv: improved roaming mechanism ... Browse Code »

    With the current client announcement implementation, in case of roaming,
    an update is triggered on the new AP serving the client. At that point
    the new information is spread around by means of the OGM broadcasting
    mechanism. Until this operations is not executed, no node is able to
    correctly route traffic towards the client. This obviously causes packet
    drops and introduces a delay in the time needed by the client to recover
    its connections.

    A new packet type called ROAMING_ADVERTISEMENT is added to account this
    issue.

    This message is sent in case of roaming from the new AP serving the
    client to the old one and will contain the client MAC address. In this
    way an out-of-OGM update is immediately committed, so that the old node
    can update its global translation table. Traffic reaching this node will
    then be redirected to the correct destination utilising the fresher
    information. Thus reducing the packet drops and the connection recovery
    delay.

    Signed-off-by: Antonio Quartulli
    Signed-off-by: Sven Eckelmann

    Antonio Quartulli