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git: ixgbe: add tso_pullup function

From: Francois Tigeot <ftigeot@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 26 Aug 2012 22:19:07 -0700 (PDT)

commit 857fbe11cb425f03036d582c4f79ae3bbfae92eb
Author: François Tigeot <ftigeot@wolfpond.org>
Date:   Sat Aug 25 17:25:26 2012 +0200

    ixgbe: add tso_pullup function
    * This routine rearranges mbuf chains to get more continuous bytes,
      potentially increasing tcp send performance
    * Single TCP streams are now able to push slightly more than 4Gb/s
      under the right circumstances
    Taken-from: Sepherosa Ziehau's work on the igb(4) driver

Summary of changes:
 sys/dev/netif/ixgbe/ixgbe.c |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)


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