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  1. Feb 15, 2011
    • David S. Miller's avatar
      ipv4: Cache learned PMTU information in inetpeer. · 2c8cec5c
      David S. Miller authored 
      

The general idea is that if we learn new PMTU information, we
bump the peer genid.

This triggers the dst_ops->check() code to validate and if
necessary propagate the new PMTU value into the metrics.

Learned PMTU information self-expires.

This means that it is not necessary to kill a cached route
entry just because the PMTU information is too old.

As a consequence:

1) When the path appears unreachable (dst_ops->link_failure
   or dst_ops->negative_advice) we unwind the PMTU state if
   it is out of date, instead of killing the cached route.

   A redirected route will still be invalidated in these
   situations.

2) rt_check_expire(), rt_worker_func(), et al. are no longer
   necessary at all.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2c8cec5c
    • Baruch Siach's avatar
      phy/micrel: add ability to support 50MHz RMII clock on KZS8051RNL · d606ef3f
      Baruch Siach authored 
      

Platform code can now set the MICREL_PHY_50MHZ_CLK bit of dev_flags in a fixup
routine (registered with phy_register_fixup_for_uid()), to make the KZS8051RNL
PHY work with 50MHz RMII reference clock.

Cc: David J. Choi <david.choi@micrel.com>
Signed-off-by: default avatarBaruch Siach <baruch@tkos.co.il>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d606ef3f
    • Bernard Pidoux's avatar
      ROSE: AX25: finding routes simplification · 68aa3fd5
      Bernard Pidoux authored 
      

With previous patch, rose_get_neigh() routine
investigates the full list of neighbor nodes
until it finds or not an already connected node whether
it is called locally or through a level 3 transit frame.
If no routes are opened through an adjacent connected node
then a classical connect request is attempted.

Then there is no more reason for an extra loop such
as the one removed by this patch.

Signed-off-by: default avatarBernard Pidoux <f6bvp@free.fr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      68aa3fd5
    • Bernard Pidoux's avatar
      ROSE: rose AX25 packet routing improvement · c5d8b24a
      Bernard Pidoux authored 
      

FPAC AX25 packet application is using Linux kernel ROSE
routing skills in order to connect or send packets to remote stations
knowing their ROSE address via a network of interconnected nodes.

Each FPAC node has a ROSE routing table that Linux ROSE module is
looking at each time a ROSE frame is relayed by the node or when
a connect request to a neighbor node is received.

A previous patch improved the system time response by looking at
already established routes each time the system was looking for a
route to relay a frame. If a neighbor node routing the destination
address was already connected, then the frame would be sent
through him. If not, a connection request would be issued.

The present patch extends the same routing capability to a connect
request asked by a user locally connected into an FPAC node.
Without this patch, a connect request was not well handled unless it
was directed to an immediate connected neighbor of the local node.

Implemented at a number of ROSE FPAC node stations, the present patch
improved dramatically FPAC ROSE routing time response and efficiency.

Signed-off-by: default avatarBernard Pidoux <f6bvp@free.fr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c5d8b24a
    • Eric Dumazet's avatar
      ipv4: fix rcu lock imbalance in fib_select_default() · 31d40937
      Eric Dumazet authored 
      Commit 0c838ff1

 (ipv4: Consolidate all default route selection
implementations.) forgot to remove one rcu_read_unlock() from
fib_select_default().

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      31d40937
  3. Feb 14, 2011
  5. Feb 12, 2011