ibmveth: Enable TCP checksum offload

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This patchset enables TCP checksum offload support for IPV4
on ibmveth. This completely eliminates the generation and checking of
the checksum for packets that are completely virtual and never
touch a physical network. A simple TCP_STREAM netperf run on
a virtual network with maximum mtu set yielded a ~30% increase
in throughput. This feature is enabled by default on systems that
support it, but can be disabled with a module option.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Brian King 2007-09-15 13:36:07 -07:00 • committed by David S. Miller

parent df950828b0

commit f4ff28720f

2 changed files with 92 additions and 2 deletions

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53

drivers/net/ibmveth.c

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41

drivers/net/ibmveth.h

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