341 lines
15 KiB
Python
341 lines
15 KiB
Python
# osmo_gsm_tester: specifics for running an SRS eNodeB process
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#
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# Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH
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#
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# Author: Pau Espin Pedrol <pespin@sysmocom.de>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import pprint
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from ..core import log, util, config, template, process, remote
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from ..core import schema
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from . import enb
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from . import rfemu
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def on_register_schemas():
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config_schema = {
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'license_server_addr': schema.IPV4,
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}
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schema.register_config_schema('amarisoft', config_schema)
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config_schema = {
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'log_options': schema.STR,
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}
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schema.register_config_schema('amarisoftenb', config_schema)
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def rf_type_valid(rf_type_str):
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return rf_type_str in ('uhd', 'zmq', 'sdr')
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class AmarisoftENB(enb.eNodeB):
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REMOTE_DIR = '/osmo-gsm-tester-amarisoftenb'
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BINFILE = 'lteenb'
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CFGFILE = 'amarisoft_enb.cfg'
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CFGFILE_SIB1 = 'amarisoft_sib1.asn'
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CFGFILE_SIB23 = 'amarisoft_sib23.asn'
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CFGFILE_RF = 'amarisoft_rf_driver.cfg'
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CFGFILE_DRB = 'amarisoft_drb.cfg'
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LOGFILE = 'lteenb.log'
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PHY_SIGNAL_FILE = 'lteenb.log.bin'
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def __init__(self, testenv, conf):
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super().__init__(testenv, conf, 'amarisoftenb')
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self.ue = None
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self.run_dir = None
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self.inst = None
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self._bin_prefix = None
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self.gen_conf = None
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self.config_file = None
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self.config_sib1_file = None
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self.config_sib23_file = None
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self.config_rf_file = None
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self.config_drb_file = None
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self.log_file = None
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self.process = None
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self.rem_host = None
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self.remote_inst = None
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self.remote_config_file = None
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self.remote_config_sib1_file = None
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self.remote_config_sib23_file = None
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self.remote_config_rf_file = None
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self.remote_config_drb_file = None
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self.remote_log_file = None
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self.enable_measurements = False
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self.testenv = testenv
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if not rf_type_valid(conf.get('rf_dev_type', None)):
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raise log.Error('Invalid rf_dev_type=%s' % conf.get('rf_dev_type', None))
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def bin_prefix(self):
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if self._bin_prefix is None:
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self._bin_prefix = os.getenv('AMARISOFT_PATH_ENB', None)
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if self._bin_prefix == None:
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self._bin_prefix = self.testenv.suite().trial().get_inst('amarisoftenb', self._run_node.run_label())
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return self._bin_prefix
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def cleanup(self):
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if self.process is None:
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return
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if self._run_node.is_local():
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return
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# copy back files (may not exist, for instance if there was an early error of process):
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try:
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self.rem_host.scpfrom('scp-back-log', self.remote_log_file, self.log_file)
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except Exception as e:
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self.log(repr(e))
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try:
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self.rem_host.scpfrom('scp-back-phy-signal-log', self.remote_phy_signal_file, self.phy_signal_file)
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except Exception as e:
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self.log(repr(e))
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# Clean up for parent class:
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super().cleanup()
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def start(self, epc):
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self.log('Starting AmarisoftENB')
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self._epc = epc
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self.run_dir = util.Dir(self.testenv.test().get_run_dir().new_dir(self.name()))
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self.configure()
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self._start()
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# send t+Enter to enable console trace
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self.dbg('Enabling console trace')
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self.process.stdin_write('t\n')
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def _start(self):
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if self._run_node.is_local():
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env = { 'LD_LIBRARY_PATH': util.prepend_library_path(self.inst) }
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binary = self.inst.child('.', AmarisoftENB.BINFILE)
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self.dbg(run_dir=self.run_dir, binary=binary, env=env)
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args = (binary, os.path.abspath(self.config_file))
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self.process = process.Process(self.name(), self.run_dir, args, env=env)
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else:
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remote_env = { 'LD_LIBRARY_PATH': self.remote_inst }
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remote_binary = self.remote_inst.child('', AmarisoftENB.BINFILE)
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args = (remote_binary, self.remote_config_file)
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self.process = self.rem_host.RemoteProcess(AmarisoftENB.BINFILE, args, remote_env=remote_env)
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self.testenv.remember_to_stop(self.process)
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self.process.launch()
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def stop(self):
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# Not implemented
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pass
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def gen_conf_file(self, path, filename, values):
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self.dbg('AmarisoftENB ' + filename + ':\n' + pprint.pformat(values))
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with open(path, 'w') as f:
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r = template.render(filename, values)
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self.dbg(r)
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f.write(r)
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def configure(self):
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self.inst = util.Dir(os.path.abspath(self.bin_prefix()))
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if not self.inst.isfile('', AmarisoftENB.BINFILE):
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raise log.Error('No %s binary in' % AmarisoftENB.BINFILE, self.inst)
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self.config_file = self.run_dir.child(AmarisoftENB.CFGFILE)
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self.config_sib1_file = self.run_dir.child(AmarisoftENB.CFGFILE_SIB1)
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self.config_sib23_file = self.run_dir.child(AmarisoftENB.CFGFILE_SIB23)
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self.config_rf_file = self.run_dir.child(AmarisoftENB.CFGFILE_RF)
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self.config_drb_file = self.run_dir.child(AmarisoftENB.CFGFILE_DRB)
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self.log_file = self.run_dir.child(AmarisoftENB.LOGFILE)
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self.phy_signal_file = self.run_dir.child(AmarisoftENB.PHY_SIGNAL_FILE)
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if not self._run_node.is_local():
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self.rem_host = remote.RemoteHost(self.run_dir, self._run_node.ssh_user(), self._run_node.ssh_addr())
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remote_prefix_dir = util.Dir(AmarisoftENB.REMOTE_DIR)
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self.remote_inst = util.Dir(remote_prefix_dir.child(os.path.basename(str(self.inst))))
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remote_run_dir = util.Dir(remote_prefix_dir.child(AmarisoftENB.BINFILE))
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self.remote_config_file = remote_run_dir.child(AmarisoftENB.CFGFILE)
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self.remote_config_sib1_file = remote_run_dir.child(AmarisoftENB.CFGFILE_SIB1)
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self.remote_config_sib23_file = remote_run_dir.child(AmarisoftENB.CFGFILE_SIB23)
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self.remote_config_rf_file = remote_run_dir.child(AmarisoftENB.CFGFILE_RF)
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self.remote_config_drb_file = remote_run_dir.child(AmarisoftENB.CFGFILE_DRB)
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self.remote_log_file = remote_run_dir.child(AmarisoftENB.LOGFILE)
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self.remote_phy_signal_file = remote_run_dir.child(AmarisoftENB.PHY_SIGNAL_FILE)
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values = super().configure(['amarisoft', 'amarisoftenb'])
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# Convert parsed boolean string to Python boolean:
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self.enable_measurements = util.str2bool(values['enb'].get('enable_measurements', 'false'))
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config.overlay(values, dict(enb={'enable_measurements': self.enable_measurements}))
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config.overlay(values, dict(enb={'enable_dl_awgn': util.str2bool(values['enb'].get('enable_dl_awgn', 'false'))}))
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# Remove EEA0 from cipher list, if specified, as it's always assumed as default
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cipher_list = values['enb'].get('cipher_list', None)
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if "eea0" in cipher_list: cipher_list.remove("eea0")
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# We need to set some specific variables programatically here to match IP addresses:
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if self._conf.get('rf_dev_type') == 'zmq':
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base_srate = self.num_prb2base_srate(self.num_prb())
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rf_dev_args = self.get_zmq_rf_dev_args(values)
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config.overlay(values, dict(enb=dict(sample_rate = base_srate / (1000*1000),
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rf_dev_args = rf_dev_args)))
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# Set UHD frame size as a function of the cell bandwidth on B2XX
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if self._conf.get('rf_dev_type') == 'uhd' and values['enb'].get('rf_dev_args', None) is not None:
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if 'b200' in values['enb'].get('rf_dev_args'):
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rf_dev_args = values['enb'].get('rf_dev_args', '')
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rf_dev_args += ',' if rf_dev_args != '' and not rf_dev_args.endswith(',') else ''
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if self._txmode == 1:
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# SISO config
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if self._num_prb < 25:
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rf_dev_args += 'send_frame_size=512,recv_frame_size=512'
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elif self._num_prb == 25:
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rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024'
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else:
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rf_dev_args += ''
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else:
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# MIMO config
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if self._num_prb == 6:
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rf_dev_args += 'send_frame_size=512,recv_frame_size=512'
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else:
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rf_dev_args += 'num_recv_frames=64,num_send_frames=64'
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if self._num_prb > 50:
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# Reduce over the wire format to sc12
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rf_dev_args += ',otw_format=sc12'
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config.overlay(values, dict(enb=dict(rf_dev_args=rf_dev_args)))
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logfile = self.log_file if self._run_node.is_local() else self.remote_log_file
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config.overlay(values, dict(enb=dict(log_filename=logfile)))
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phy_signal_file = self.phy_signal_file if self._run_node.is_local() else self.remote_phy_signal_file
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config.overlay(values, dict(enb=dict(phy_signal_file=phy_signal_file)))
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# rf driver is shared between amarisoft enb and ue, so it has a
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# different cfg namespace 'trx'. Copy needed values over there:
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config.overlay(values, dict(trx=dict(rf_dev_type=values['enb'].get('rf_dev_type', None),
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rf_dev_args=values['enb'].get('rf_dev_args', None),
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rf_dev_sync=values['enb'].get('rf_dev_sync', None),
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rx_gain=values['enb'].get('rx_gain', None),
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tx_gain=values['enb'].get('tx_gain', None),
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rx_ant=values['enb'].get('rx_ant', None),
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)))
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self.gen_conf = values
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self.gen_conf_file(self.config_file, AmarisoftENB.CFGFILE, values)
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self.gen_conf_file(self.config_sib1_file, AmarisoftENB.CFGFILE_SIB1, values)
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self.gen_conf_file(self.config_sib23_file, AmarisoftENB.CFGFILE_SIB23, values)
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self.gen_conf_file(self.config_rf_file, AmarisoftENB.CFGFILE_RF, values)
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self.gen_conf_file(self.config_drb_file, AmarisoftENB.CFGFILE_DRB, values)
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if not self._run_node.is_local():
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self.rem_host.recreate_remote_dir(self.remote_inst)
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self.rem_host.scp('scp-inst-to-remote', str(self.inst), remote_prefix_dir)
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self.rem_host.recreate_remote_dir(remote_run_dir)
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self.rem_host.scp('scp-cfg-to-remote', self.config_file, self.remote_config_file)
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self.rem_host.scp('scp-cfg-sib1-to-remote', self.config_sib1_file, self.remote_config_sib1_file)
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self.rem_host.scp('scp-cfg-sib23-to-remote', self.config_sib23_file, self.remote_config_sib23_file)
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self.rem_host.scp('scp-cfg-rr-to-remote', self.config_rf_file, self.remote_config_rf_file)
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self.rem_host.scp('scp-cfg-drb-to-remote', self.config_drb_file, self.remote_config_drb_file)
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def ue_add(self, ue):
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if self.ue is not None:
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raise log.Error("More than one UE per ENB not yet supported (ZeroMQ)")
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self.ue = ue
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def running(self):
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return not self.process.terminated()
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def get_counter(self, counter_name):
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if counter_name == 'prach_received':
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return self.process.get_counter_stdout('PRACH:')
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raise log.Error('counter %s not implemented!' % counter_name)
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def get_kpis(self):
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return {}
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def get_rfemu(self, cell=0, dl=True):
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cell_list = self.gen_conf['enb'].get('cell_list', None)
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if cell_list is None or len(cell_list) < cell + 1:
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raise log.Error('cell_list attribute or subitem not found!')
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rfemu_cfg = cell_list[cell].get('dl_rfemu', None)
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if rfemu_cfg is None: # craft amarisoft by default:
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rfemu_cfg = {'type': 'amarisoftctl',
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'addr': self.addr(),
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'ports': [9001]
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}
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if rfemu_cfg['type'] == 'amarisoftctl': # this one requires extra config:
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config.overlay(rfemu_cfg, dict(cell_id=cell_list[cell]['cell_id']))
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rfemu_obj = rfemu.get_instance_by_type(rfemu_cfg['type'], rfemu_cfg)
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return rfemu_obj
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def ue_max_rate(self, downlink=True, num_carriers=1):
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if self._duplex == 'fdd':
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return self.ue_max_rate_fdd(downlink, num_carriers)
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else:
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return self.ue_max_rate_tdd(downlink, num_carriers)
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def ue_max_rate_fdd(self, downlink, num_carriers):
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# The max rate for a single UE per PRB configuration in TM1 with MCS 28 QAM64
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max_phy_rate_tm1_dl = { 6 : 3.2e6,
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15 : 9.2e6,
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25 : 18e6,
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50 : 36e6,
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75 : 55e6,
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100 : 75e6 }
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max_phy_rate_tm1_ul = { 6 : 2.0e6,
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15 : 5.1e6,
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25 : 10e6,
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50 : 21e6,
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75 : 32e6,
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100 : 47e6 }
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if downlink:
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max_rate = max_phy_rate_tm1_dl[self.num_prb()]
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else:
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max_rate = max_phy_rate_tm1_ul[self.num_prb()]
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# MIMO only supported for Downlink
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if downlink:
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if self._txmode > 2:
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max_rate *= 2
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# Lower max MCS for TM2 and above results in lower max rate
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if self._txmode >= 2 and self.num_prb() <= 25:
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max_rate *= 0.85
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# Assume we schedule all carriers
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max_rate *= num_carriers
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# Reduce expected UL rate due to bug in UCI scheduling in Amarisoft eNB
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if downlink == False and num_carriers == 2:
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# 2nd carrier @ 25%
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max_rate = max_rate / 2 + (.25 * max_rate / 2)
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return max_rate
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def ue_max_rate_tdd(self, downlink, num_carriers):
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# Max rate calculation for TDD depends on the acutal TDD configuration
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# See: https://www.sharetechnote.com/html/Handbook_LTE_ThroughputCalculationExample_TDD.html
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# and https://i0.wp.com/www.techtrained.com/wp-content/uploads/2017/09/Blog_Post_1_TDD_Max_Throughput_Theoretical.jpg
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max_phy_rate_tdd_uldl_config0_sp0 = { 6 : 1.5e6,
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15 : 3.7e6,
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25 : 6.1e6,
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50 : 12.2e6,
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75 : 18.4e6,
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100 : 54.5e6 }
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if downlink:
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max_rate = max_phy_rate_tdd_uldl_config0_sp0[self.num_prb()]
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else:
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return 1e6 # dummy value, we need to replace that later
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# vim: expandtab tabstop=4 shiftwidth=4
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