1. 09 12月, 2014 1 次提交
  2. 24 11月, 2014 2 次提交
  3. 12 11月, 2014 2 次提交
    • J
      net: Convert LIMIT_NETDEBUG to net_dbg_ratelimited · ba7a46f1
      Joe Perches 提交于
      Use the more common dynamic_debug capable net_dbg_ratelimited
      and remove the LIMIT_NETDEBUG macro.
      
      All messages are still ratelimited.
      
      Some KERN_<LEVEL> uses are changed to KERN_DEBUG.
      
      This may have some negative impact on messages that were
      emitted at KERN_INFO that are not not enabled at all unless
      DEBUG is defined or dynamic_debug is enabled.  Even so,
      these messages are now _not_ emitted by default.
      
      This also eliminates the use of the net_msg_warn sysctl
      "/proc/sys/net/core/warnings".  For backward compatibility,
      the sysctl is not removed, but it has no function.  The extern
      declaration of net_msg_warn is removed from sock.h and made
      static in net/core/sysctl_net_core.c
      
      Miscellanea:
      
      o Update the sysctl documentation
      o Remove the embedded uses of pr_fmt
      o Coalesce format fragments
      o Realign arguments
      Signed-off-by: NJoe Perches <joe@perches.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ba7a46f1
    • E
      net: introduce SO_INCOMING_CPU · 2c8c56e1
      Eric Dumazet 提交于
      Alternative to RPS/RFS is to use hardware support for multiple
      queues.
      
      Then split a set of million of sockets into worker threads, each
      one using epoll() to manage events on its own socket pool.
      
      Ideally, we want one thread per RX/TX queue/cpu, but we have no way to
      know after accept() or connect() on which queue/cpu a socket is managed.
      
      We normally use one cpu per RX queue (IRQ smp_affinity being properly
      set), so remembering on socket structure which cpu delivered last packet
      is enough to solve the problem.
      
      After accept(), connect(), or even file descriptor passing around
      processes, applications can use :
      
       int cpu;
       socklen_t len = sizeof(cpu);
      
       getsockopt(fd, SOL_SOCKET, SO_INCOMING_CPU, &cpu, &len);
      
      And use this information to put the socket into the right silo
      for optimal performance, as all networking stack should run
      on the appropriate cpu, without need to send IPI (RPS/RFS).
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2c8c56e1
  4. 08 11月, 2014 1 次提交
  5. 06 11月, 2014 1 次提交
    • D
      net: Add and use skb_copy_datagram_msg() helper. · 51f3d02b
      David S. Miller 提交于
      This encapsulates all of the skb_copy_datagram_iovec() callers
      with call argument signature "skb, offset, msghdr->msg_iov, length".
      
      When we move to iov_iters in the networking, the iov_iter object will
      sit in the msghdr.
      
      Having a helper like this means there will be less places to touch
      during that transformation.
      
      Based upon descriptions and patch from Al Viro.
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      51f3d02b
  6. 02 9月, 2014 1 次提交
    • T
      udp: Add support for doing checksum unnecessary conversion · 2abb7cdc
      Tom Herbert 提交于
      Add support for doing CHECKSUM_UNNECESSARY to CHECKSUM_COMPLETE
      conversion in UDP tunneling path.
      
      In the normal UDP path, we call skb_checksum_try_convert after locating
      the UDP socket. The check is that checksum conversion is enabled for
      the socket (new flag in UDP socket) and that checksum field is
      non-zero.
      
      In the UDP GRO path, we call skb_gro_checksum_try_convert after
      checksum is validated and checksum field is non-zero. Since this is
      already in GRO we assume that checksum conversion is always wanted.
      Signed-off-by: NTom Herbert <therbert@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2abb7cdc
  7. 25 8月, 2014 1 次提交
    • I
      ipv6: White-space cleansing : Line Layouts · 67ba4152
      Ian Morris 提交于
      This patch makes no changes to the logic of the code but simply addresses
      coding style issues as detected by checkpatch.
      
      Both objdump and diff -w show no differences.
      
      A number of items are addressed in this patch:
      * Multiple spaces converted to tabs
      * Spaces before tabs removed.
      * Spaces in pointer typing cleansed (char *)foo etc.
      * Remove space after sizeof
      * Ensure spacing around comparators such as if statements.
      Signed-off-by: NIan Morris <ipm@chirality.org.uk>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      67ba4152
  8. 24 8月, 2014 1 次提交
  9. 01 8月, 2014 2 次提交
  10. 24 7月, 2014 1 次提交
  11. 17 7月, 2014 2 次提交
  12. 02 7月, 2014 1 次提交
    • E
      inet: move ipv6only in sock_common · 9fe516ba
      Eric Dumazet 提交于
      When an UDP application switches from AF_INET to AF_INET6 sockets, we
      have a small performance degradation for IPv4 communications because of
      extra cache line misses to access ipv6only information.
      
      This can also be noticed for TCP listeners, as ipv6_only_sock() is also
      used from __inet_lookup_listener()->compute_score()
      
      This is magnified when SO_REUSEPORT is used.
      
      Move ipv6only into struct sock_common so that it is available at
      no extra cost in lookups.
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      9fe516ba
  13. 27 6月, 2014 1 次提交
  14. 06 6月, 2014 1 次提交
  15. 05 6月, 2014 1 次提交
  16. 24 5月, 2014 3 次提交
  17. 09 5月, 2014 1 次提交
  18. 06 5月, 2014 2 次提交
  19. 01 5月, 2014 1 次提交
  20. 20 1月, 2014 1 次提交
    • H
      ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams · 4b261c75
      Hannes Frederic Sowa 提交于
      We currently don't report IPV6_RECVPKTINFO in cmsg access ancillary data
      for IPv4 datagrams on IPv6 sockets.
      
      This patch splits the ip6_datagram_recv_ctl into two functions, one
      which handles both protocol families, AF_INET and AF_INET6, while the
      ip6_datagram_recv_specific_ctl only handles IPv6 cmsg data.
      
      ip6_datagram_recv_*_ctl never reported back any errors, so we can make
      them return void. Also provide a helper for protocols which don't offer dual
      personality to further use ip6_datagram_recv_ctl, which is exported to
      modules.
      
      I needed to shuffle the code for ping around a bit to make it easier to
      implement dual personality for ping ipv6 sockets in future.
      Reported-by: NGert Doering <gert@space.net>
      Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4b261c75
  21. 19 1月, 2014 1 次提交
  22. 19 12月, 2013 1 次提交
  23. 11 12月, 2013 1 次提交
  24. 06 12月, 2013 1 次提交
  25. 24 11月, 2013 1 次提交
  26. 19 11月, 2013 1 次提交
  27. 20 10月, 2013 3 次提交
  28. 09 10月, 2013 2 次提交
    • E
      ipv6: make lookups simpler and faster · efe4208f
      Eric Dumazet 提交于
      TCP listener refactoring, part 4 :
      
      To speed up inet lookups, we moved IPv4 addresses from inet to struct
      sock_common
      
      Now is time to do the same for IPv6, because it permits us to have fast
      lookups for all kind of sockets, including upcoming SYN_RECV.
      
      Getting IPv6 addresses in TCP lookups currently requires two extra cache
      lines, plus a dereference (and memory stall).
      
      inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6
      
      This patch is way bigger than its IPv4 counter part, because for IPv4,
      we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6,
      it's not doable easily.
      
      inet6_sk(sk)->daddr becomes sk->sk_v6_daddr
      inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr
      
      And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr
      at the same offset.
      
      We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic
      macro.
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      efe4208f
    • S
      udp: Only allow busy read/poll on connected sockets · 005ec974
      Shawn Bohrer 提交于
      UDP sockets can receive packets from multiple endpoints and thus may be
      received on multiple receive queues.  Since packets packets can arrive
      on multiple receive queues we should not mark the napi_id for all
      packets.  This makes busy read/poll only work for connected UDP sockets.
      
      This additionally enables busy read/poll for UDP multicast packets as
      long as the socket is connected by moving the check into
      __udp_queue_rcv_skb().
      Signed-off-by: NShawn Bohrer <sbohrer@rgmadvisors.com>
      Suggested-by: NEric Dumazet <edumazet@google.com>
      Acked-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      005ec974
  29. 04 10月, 2013 1 次提交
    • E
      inet: consolidate INET_TW_MATCH · 50805466
      Eric Dumazet 提交于
      TCP listener refactoring, part 2 :
      
      We can use a generic lookup, sockets being in whatever state, if
      we are sure all relevant fields are at the same place in all socket
      types (ESTABLISH, TIME_WAIT, SYN_RECV)
      
      This patch removes these macros :
      
       inet_addrpair, inet_addrpair, tw_addrpair, tw_portpair
      
      And adds :
      
       sk_portpair, sk_addrpair, sk_daddr, sk_rcv_saddr
      
      Then, INET_TW_MATCH() is really the same than INET_MATCH()
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      50805466
  30. 24 9月, 2013 1 次提交