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List:       openvswitch-discuss
Subject:    [ovs-discuss] what need to to add action in datapath(kernel)
From:       601358880 () qq ! com (=?gb18030?B?WWFuZyBZYW5uYW4=?=)
Date:       2015-01-28 13:05:51
Message-ID: tencent_78E60F4D42DDD6B102410EE5 () qq ! com
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hi
if adding a action in datapath,like push_mpls, what else need to do?
sth I think need to do is:
in datapath(kernel)
1. openvswitch.h
 add OVS_ACTION_ATTR_，ovs_action_
2. flow-netlink.c
add the length and validate the action
3.actions.c
execute actions according to nla_type.
xlate
1. ofproto-dpif-xlate.c
do_xlate_actions_，change flow according to the type of ofpact.
2. odp-util.c
commit the action and write it into odp-actions of xout.
3. in userspace ,execute action when needing help.
and adding  it as ofpact is omitted. this part seems not that tough.

regards.
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