geneve: Relax MTU constraints

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[ Upstream commit 55e5bfb53c ]

Allow the MTU of geneve devices to be set to large values, in order to
exploit underlying networks with larger frame sizes.

GENEVE does not have a fixed encapsulation overhead (an openvswitch
rule can add variable length options), so there is no relevant maximum
MTU to enforce.  A maximum of IP_MAX_MTU is used instead.
Encapsulated packets that are too big for the underlying network will
get dropped on the floor.

Signed-off-by: David Wragg <david@weave.works>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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David Wragg 2016-06-03 18:58:14 -04:00 • committed by Greg Kroah-Hartman

parent 3dc4430598

commit 51d7c39460

1 changed files with 12 additions and 1 deletions

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drivers/net/geneve.c

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