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From: Colin Percival <cperciva@FreeBSD.org>
Date: Tue, 5 Jul 2011 18:43:54 +0000 (UTC)
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Subject: cvs commit: src/sys/netinet tcp_lro.c
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cperciva    2011-07-05 18:43:54 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          tcp_lro.c 
  Log:
  SVN rev 223797 on 2011-07-05 18:43:54Z by cperciva
  
  Don't allow lro->len to exceed 65535, as this will result in overflow
  when len is inserted back into the synthetic IP packet and cause a
  multiple of 2^16 bytes of TCP "packet loss".
  
  This improves Linux->FreeBSD netperf bandwidth by a factor of 300 in
  testing on Amazon EC2.
  
  Reviewed by:    jfv
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.5       +8 -0      src/sys/netinet/tcp_lro.c