From: Dave Graham <david.graham@intel.com>
Date: Thu, 9 Oct 2008 21:28:58 +0000 (-0700)
Subject: e1000e: don't generate bad checksums for tcp packets with 0 csum
X-Git-Tag: v2.6.28-rc1~717^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af807c82978ec1b8c5120b59b78ef951b3e4603b;p=pandora-kernel.git

e1000e: don't generate bad checksums for tcp packets with 0 csum

When offloading transmit checksums only, the driver was not
correctly configuring the hardware to handle the case of a zero
checksum.  For UDP the correct behavior is to leave it alone, but
for tcp the checksum must be changed from 0x0000 to 0xFFFF.  The
hardware takes care of this case but only if it is told the
packet is tcp.

Signed-off-by: Dave Graham <david.graham@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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