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oxm_fields: Add Nicira Extended Match (NXM) support

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Note: It wasn't clear to me which NXM stands for "Extensible" or
"Extended".  I chose the latter because it's in the primary
specification.  (nicira-ext.h)

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 2014-10-14 12:28:40 +09:00 committed by FUJITA Tomonori
parent 73e336e74e
commit be892f863b
1 changed files with 23 additions and 4 deletions
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27
ryu/ofproto/oxm_fields.py
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@ -87,6 +87,8 @@ class UnknownType(TypeDescr):
from_user = staticmethod(base64.b64decode)
OFPXMC_NXM_0 = 0 # Nicira Extended Match (NXM_OF_)
OFPXMC_NXM_1 = 1 # Nicira Extended Match (NXM_NX_)
OFPXMC_OPENFLOW_BASIC = 0x8000
OFPXMC_EXPERIMENTER = 0xffff
@ -95,16 +97,15 @@ class _OxmClass(object):
def __init__(self, name, num, type_):
self.name = name
self.oxm_type = num | (self._class << 7)
# TODO(yamamoto): Clean this up later.
# Probably when we drop EXT-256 style experimenter OXMs.
self.num = self.oxm_type
self.type = type_
class OpenFlowBasic(_OxmClass):
_class = OFPXMC_OPENFLOW_BASIC
def __init__(self, name, num, type_):
super(OpenFlowBasic, self).__init__(name, num, type_)
self.num = self.oxm_type
class _Experimenter(_OxmClass):
_class = OFPXMC_EXPERIMENTER
@ -119,6 +120,24 @@ class ONFExperimenter(_Experimenter):
self.exp_type = num
class NiciraExtended0(_OxmClass):
"""Nicira Extended Match (NXM_0)
NXM header format is same as 32-bit (non-experimenter) OXMs.
"""
_class = OFPXMC_NXM_0
class NiciraExtended1(_OxmClass):
"""Nicira Extended Match (NXM_1)
NXM header format is same as 32-bit (non-experimenter) OXMs.
"""
_class = OFPXMC_NXM_1
def generate(modname):
import sys
import string