1. 18 10月, 2016 1 次提交
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  3. 31 8月, 2016 1 次提交
    • R
      net: lwtunnel: Handle fragmentation · 14972cbd
      Roopa Prabhu 提交于
      Today mpls iptunnel lwtunnel_output redirect expects the tunnel
      output function to handle fragmentation. This is ok but can be
      avoided if we did not do the mpls output redirect too early.
      ie we could wait until ip fragmentation is done and then call
      mpls output for each ip fragment.
      
      To make this work we will need,
      1) the lwtunnel state to carry encap headroom
      2) and do the redirect to the encap output handler on the ip fragment
      (essentially do the output redirect after fragmentation)
      
      This patch adds tunnel headroom in lwtstate to make sure we
      account for tunnel data in mtu calculations during fragmentation
      and adds new xmit redirect handler to redirect to lwtunnel xmit func
      after ip fragmentation.
      
      This includes IPV6 and some mtu fixes and testing from David Ahern.
      Signed-off-by: NRoopa Prabhu <roopa@cumulusnetworks.com>
      Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      14972cbd
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