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  1. 15 11月, 2012 1 次提交
  3. 10 11月, 2012 1 次提交
  5. 04 11月, 2012 1 次提交
  7. 20 8月, 2012 1 次提交
  9. 15 8月, 2012 1 次提交
  11. 19 7月, 2012 1 次提交
    • E
      ipv6: add ipv6_addr_hash() helper · ddbe5032
      由 Eric Dumazet 提交于 
      Introduce ipv6_addr_hash() helper doing a XOR on all bits
of an IPv6 address, with an optimized x86_64 version.

Use it in flow dissector, as suggested by Andrew McGregor,
to reduce hash collision probabilities in fq_codel (and other
users of flow dissector)

Use it in ip6_tunnel.c and use more bit shuffling, as suggested
by David Laight, as existing hash was ignoring most of them.

Use it in sunrpc and use more bit shuffling, using hash_32().

Use it in net/ipv6/addrconf.c, using hash_32() as well.

As a cleanup, use it in net/ipv4/tcp_metrics.c
Signed-off-by: NEric Dumazet <edumazet@google.com>
Reported-by: NAndrew McGregor <andrewmcgr@gmail.com>
Cc: Dave Taht <dave.taht@gmail.com>
Cc: Tom Herbert <therbert@google.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ddbe5032
  13. 17 7月, 2012 1 次提交
    • D
      net: Pass optional SKB and SK arguments to dst_ops->{update_pmtu,redirect}() · 6700c270
      由 David S. Miller 提交于 
      This will be used so that we can compose a full flow key.

Even though we have a route in this context, we need more.  In the
future the routes will be without destination address, source address,
etc. keying.  One ipv4 route will cover entire subnets, etc.

In this environment we have to have a way to possess persistent storage
for redirects and PMTU information.  This persistent storage will exist
in the FIB tables, and that's why we'll need to be able to rebuild a
full lookup flow key here.  Using that flow key will do a fib_lookup()
and create/update the persistent entry.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6700c270
  15. 12 7月, 2012 2 次提交
  17. 11 7月, 2012 1 次提交
  19. 29 6月, 2012 1 次提交
    • V
      ipv6_tunnel: Allow receiving packets on the fallback tunnel if they pass sanity checks · d0087b29
      由 Ville Nuorvala 提交于 
      At Facebook, we do Layer-3 DSR via IP-in-IP tunneling. Our load balancers wrap
an extra IP header on incoming packets so they can be routed to the backend.
In the v4 tunnel driver, when these packets fall on the default tunl0 device,
the behavior is to decapsulate them and drop them back on the stack. So our
setup is that tunl0 has the VIP and eth0 has (obviously) the backend's real
address.

In IPv6 we do the same thing, but the v6 tunnel driver didn't have this same
behavior - if you didn't have an explicit tunnel setup, it would drop the
packet.

This patch brings that v4 feature to the v6 driver.

The same IPv6 address checks are performed as with any normal tunnel,
but as the fallback tunnel endpoint addresses are unspecified, the checks
must be performed on a per-packet basis, rather than at tunnel
configuration time.

[Patch description modified by phil@ipom.com]
Signed-off-by: NVille Nuorvala <ville.nuorvala@gmail.com>
Tested-by: NPhil Dibowitz <phil@ipom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d0087b29
  21. 18 5月, 2012 1 次提交
  23. 16 5月, 2012 3 次提交
  25. 20 4月, 2012 1 次提交
  27. 16 4月, 2012 1 次提交
  29. 13 1月, 2012 1 次提交
  31. 29 12月, 2011 1 次提交
  33. 23 11月, 2011 1 次提交
  35. 14 11月, 2011 1 次提交
    • J
      ip6_tunnel: copy parms.name after register_netdevice · 731abb9c
      由 Josh Boyer 提交于 
      Commit 1c5cae81 removed an explicit call to dev_alloc_name in ip6_tnl_create
because register_netdevice will now create a valid name.  This works for the
net_device itself.

However the tunnel keeps a copy of the name in the parms structure for the
ip6_tnl associated with the tunnel.  parms.name is set by copying the net_device
name in ip6_tnl_dev_init_gen.  That function is called from ip6_tnl_dev_init in
ip6_tnl_create, but it is done before register_netdevice is called so the name
is set to a bogus value in the parms.name structure.

This shows up if you do a simple tunnel add, followed by a tunnel show:

[root@localhost ~]# ip -6 tunnel add remote fec0::100 local fec0::200
[root@localhost ~]# ip -6 tunnel show
ip6tnl0: ipv6/ipv6 remote :: local :: encaplimit 0 hoplimit 0 tclass 0x00 flowlabel 0x00000 (flowinfo 0x00000000)
ip6tnl%d: ipv6/ipv6 remote fec0::100 local fec0::200 encaplimit 4 hoplimit 64 tclass 0x00 flowlabel 0x00000 (flowinfo 0x00000000)
[root@localhost ~]#

Fix this by moving the strcpy out of ip6_tnl_dev_init_gen, and calling it after
register_netdevice has successfully returned.

Cc: stable@vger.kernel.org
Signed-off-by: NJosh Boyer <jwboyer@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      731abb9c
  37. 09 11月, 2011 1 次提交
  39. 21 9月, 2011 1 次提交
  41. 02 8月, 2011 1 次提交
  43. 01 8月, 2011 1 次提交
  45. 27 7月, 2011 1 次提交
  47. 06 5月, 2011 1 次提交
  49. 04 5月, 2011 1 次提交
  51. 23 4月, 2011 1 次提交
  53. 13 3月, 2011 3 次提交
  55. 11 3月, 2011 1 次提交
  57. 03 3月, 2011 2 次提交
  59. 02 12月, 2010 1 次提交
  61. 29 11月, 2010 1 次提交
  63. 28 10月, 2010 1 次提交
  65. 25 10月, 2010 1 次提交
  67. 06 10月, 2010 1 次提交
    • E
      net: add a core netdev->rx_dropped counter · caf586e5
      由 Eric Dumazet 提交于 
      In various situations, a device provides a packet to our stack and we
drop it before it enters protocol stack :
- softnet backlog full (accounted in /proc/net/softnet_stat)
- bad vlan tag (not accounted)
- unknown/unregistered protocol (not accounted)

We can handle a per-device counter of such dropped frames at core level,
and automatically adds it to the device provided stats (rx_dropped), so
that standard tools can be used (ifconfig, ip link, cat /proc/net/dev)

This is a generalization of commit 8990f468 (net: rx_dropped
accounting), thus reverting it.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      caf586e5