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git: bce: Add TSO support

From: Sepherosa Ziehau <sephe@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 10 Aug 2012 01:48:14 -0700 (PDT)

commit eefd160d115faf0e7f93de4da6d8aefcd644b83a
Author: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date:   Fri Aug 10 16:22:44 2012 +0800

    bce: Add TSO support
    Obatined-from: FreeBSD
    With following modification:
    These chips can handle ip.ip_len and tcphdr.th_sum, if they are setup
    according to Microsoft LSO specification, so ip.ip_len should not be
    cleared and tcphdr.th_sum should be left as it is.
    According-to: bnx2

Summary of changes:
 sys/dev/netif/bce/if_bce.c    |   81 ++++++++++++++++++++++++++++++++++++-----
 sys/dev/netif/bce/if_bcereg.h |   10 +++---
 2 files changed, 77 insertions(+), 14 deletions(-)


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