oxm_fields: Add a comment

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
YAMAMOTO Takashi 2014-10-03 14:20:48 +09:00 committed by FUJITA Tomonori
parent 75753841aa
commit 9c83c8dba9

View File

@ -230,6 +230,10 @@ def parse(mod, buf, offset):
offset + hdr_len)
exp_hdr_len = struct.calcsize(exp_hdr_pack_str)
if exp_id == ofproto_common.ONF_EXPERIMENTER_ID:
# XXX
# This block implements EXT-256 style experimenter OXM.
# However, according to blp, the extension will be rectified.
# https://www.mail-archive.com/dev%40openvswitch.org/msg37644.html
onf_exp_type_pack_str = '!H'
(exp_type, ) = struct.unpack_from(onf_exp_type_pack_str, buf,
offset + hdr_len + exp_hdr_len)