openvswitch: Add packet truncation support.

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The patch adds a new OVS action, OVS_ACTION_ATTR_TRUNC, in order to
truncate packets. A 'max_len' is added for setting up the maximum
packet size, and a 'cutlen' field is to record the number of bytes
to trim the packet when the packet is outputting to a port, or when
the packet is sent to userspace.

Signed-off-by: William Tu <u9012063@gmail.com>
Cc: Pravin Shelar <pshelar@nicira.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

William Tu 2016-06-10 11:49:33 -07:00 • committed by David S. Miller

parent 1578b0a5e9

commit f2a4d086ed

6 changed files with 73 additions and 17 deletions

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6

include/uapi/linux/openvswitch.h

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40

net/openvswitch/actions.c

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29

net/openvswitch/datapath.c

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5

net/openvswitch/datapath.h

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9

net/openvswitch/flow_netlink.c

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1

net/openvswitch/vport.c

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