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#!/usr/bin/python
# -*- coding: utf8 -*-
# author: wly
# date: 2015-11-09
# see license for license details
import time
import subprocess
import vstf.common.decorator as deco
from vstf.common.utils import kill_by_name, my_popen
import logging
LOG = logging.getLogger(__name__)
class Netmap(object):
def __init__(self):
self._send_processes = []
self._receive_processes = []
@deco.check("protocol", choices=['udp_bw'], defaults='udp_bw')
@deco.check("namespace", defaults=None)
@deco.check("dst")
@deco.check("src")
@deco.check("size", defaults=64)
@deco.check("threads", defaults=1)
@deco.check("ratep", defaults=0)
def send_start(self, **kwargs):
cmd = self.format_send_start(**kwargs)
LOG.info("cmd:%s", cmd)
process = my_popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self._send_processes.append(process)
time.sleep(0.5)
ret = process.poll()
if ret is None:
ret = 0
error_str = "start netmap send success"
else:
error_str = "start netmap send failed, %s" % (str(kwargs))
process.wait()
self._send_processes.remove(process)
return ret, error_str
def send_stop(self, **kwargs):
LOG.info("send_stop")
results = []
ret = 0
for process in self._send_processes:
process.kill()
process.wait()
error_str = "stop netmap send success"
results.append((ret, error_str))
self._send_processes = []
return results
def format_send_start(self, **kwargs):
cmd = "pkt-gen -i %(src_iface)s -f tx -l %(pkt_size)s -p %(threads)s -D %(dst_mac)s -R %(ratep)s"
context = {
'src_iface': kwargs['src'][0]['iface'],
'dst_mac': kwargs['dst'][0]['mac'],
'pkt_size': kwargs['size'],
'threads': kwargs['threads'],
'ratep': kwargs['ratep']
}
cmd = cmd % context
return cmd
@deco.namespace()
def format_receive_start(self, **kwargs):
cmd = "pkt-gen -i %(iface)s -f rx"
context = {
'iface': kwargs['dst'][0]['iface']
}
cmd = cmd % context
return cmd
@deco.check("protocol", choices=['udp_bw'], defaults='udp_bw')
@deco.check("namespace", defaults=None)
@deco.check("dst")
def receive_start(self, **kwargs):
cmd = self.format_receive_start(**kwargs)
LOG.info("cmd:%s", cmd)
process = my_popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self._receive_processes.append(process)
time.sleep(0.5)
ret = process.poll()
if ret is None:
ret = 0
error_str = "start netmap receive success"
else:
error_str = "start netmap receive failed, %s" % (str(kwargs))
process.wait()
self._receive_processes.remove(process)
return ret, error_str
def receive_stop(self, **kwargs):
LOG.info("receive_stop")
ret = 0
for process in self._receive_processes:
process.kill()
process.wait()
self._receive_processes = []
error_str = "stop netmap receive success"
self._receive_processes = []
return ret, error_str
def clean(self):
self.send_stop()
self.receive_stop()
return True
def force_clean(self):
LOG.info("%s %s start", self.__class__, self.force_clean.__name__)
kill_by_name('pkt-gen')
self._send_processes = []
self._receive_processes = []
return True
def unit_test():
perf = Netmap()
receive = {
"protocol": "udp_bw",
# "namespace": "receive",
"dst": [
{"iface": "p57p2"}
],
}
ret = perf.receive_start(**receive)
LOG.info("*********receive_start***********")
LOG.info("ret")
send = {
# "namespace": "send",
"protocol": "udp_bw",
"src": [
{"iface": "eth4", "mac": "90:e2:ba:20:1f:d8"}
],
"dst": [
{"mac": "90:e2:ba:20:1f:d9"}
],
"size": 64,
"threads": 1,
"ratep": 0
}
print perf.send_start(**send)
print perf._send_processes
time.sleep(10)
print perf.send_stop()
print perf.receive_stop()
if __name__ == "__main__":
from vstf.common.log import setup_logging
setup_logging(level=logging.DEBUG, log_file="/var/log/vstf/vstf-netmap.log", clevel=logging.INFO)
unit_test()
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