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#!/usr/bin/env python3
import re
import unittest
import platform
from framework import VppTestCase
def checkX86():
return platform.machine() in ["x86_64", "AMD64"]
def skipVariant(variant):
with open("/proc/cpuinfo") as f:
cpuinfo = f.read()
exp = re.compile(
r'(?:flags\s+:)(?:\s\w+)+(?:\s(' + variant + r'))(?:\s\w+)+')
match = exp.search(cpuinfo, re.DOTALL | re.MULTILINE)
return checkX86() and match is not None
class TestNodeVariant(VppTestCase):
""" Test Node Variants """
@classmethod
def setUpConstants(cls, variant):
super(TestNodeVariant, cls).setUpConstants()
# find the position of node_variants in the cmdline args.
if checkX86():
node_variants = cls.vpp_cmdline.index("node { ") + 1
cls.vpp_cmdline[node_variants] = ("default { variant default } "
"ip4-rewrite { variant " +
variant + " } ")
@classmethod
def setUpClass(cls):
super(TestNodeVariant, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestNodeVariant, cls).tearDownClass()
def setUp(self):
super(TestNodeVariant, self).setUp()
def tearDown(self):
super(TestNodeVariant, self).tearDown()
def getActiveVariant(self, node):
node_desc = self.vapi.cli("show node " + node)
self.logger.info(node_desc)
match = re.search(r'\s+(\S+)\s+(\d+)\s+(:?yes)',
node_desc, re.DOTALL | re.MULTILINE)
return match.groups(0)
def checkVariant(self, variant):
""" Test node variants defaults """
variant_info = self.getActiveVariant("ip4-lookup")
self.assertEqual(variant_info[0], "default")
variant_info = self.getActiveVariant("ip4-rewrite")
self.assertEqual(variant_info[0], variant)
class TestICLVariant(TestNodeVariant):
""" Test icl Node Variants """
VARIANT = "icl"
LINUX_VARIANT = "avx512_bitalg"
@classmethod
def setUpConstants(cls):
super(TestICLVariant, cls).setUpConstants(cls.VARIANT)
@classmethod
def setUpClass(cls):
super(TestICLVariant, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestICLVariant, cls).tearDownClass()
@unittest.skipUnless(skipVariant(LINUX_VARIANT),
VARIANT + " not a supported variant, skip.")
def test_icl(self):
self.checkVariant(self.VARIANT)
class TestSKXVariant(TestNodeVariant):
""" Test skx Node Variants """
VARIANT = "skx"
LINUX_VARIANT = "avx512f"
@classmethod
def setUpConstants(cls):
super(TestSKXVariant, cls).setUpConstants(cls.VARIANT)
@classmethod
def setUpClass(cls):
super(TestSKXVariant, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestSKXVariant, cls).tearDownClass()
@unittest.skipUnless(skipVariant(LINUX_VARIANT),
VARIANT + " not a supported variant, skip.")
def test_skx(self):
self.checkVariant(self.VARIANT)
class TestHSWVariant(TestNodeVariant):
""" Test avx2 Node Variants """
VARIANT = "hsw"
LINUX_VARIANT = "avx2"
@classmethod
def setUpConstants(cls):
super(TestHSWVariant, cls).setUpConstants(cls.VARIANT)
@classmethod
def setUpClass(cls):
super(TestHSWVariant, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestHSWVariant, cls).tearDownClass()
@unittest.skipUnless(skipVariant(LINUX_VARIANT),
VARIANT + " not a supported variant, skip.")
def test_hsw(self):
self.checkVariant(self.VARIANT)
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