# osmo_gsm_tester: specifics for running an SRS eNodeB process # # Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH # # Author: Pau Espin Pedrol # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as # published by the Free Software Foundation, either version 3 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . import os import pprint from ..core import log, util, config, template, process, remote from ..core.event_loop import MainLoop from . import enb from . import rfemu from .srslte_common import srslte_common from ..core import schema def on_register_schemas(): config_schema = { 'enable_pcap': schema.BOOL_STR, 'log_all_level': schema.STR, } schema.register_config_schema('enb', config_schema) def rf_type_valid(rf_type_str): return rf_type_str in ('zmq', 'uhd', 'soapy', 'bladerf') class srsENB(enb.eNodeB, srslte_common): REMOTE_DIR = '/osmo-gsm-tester-srsenb' BINFILE = 'srsenb' CFGFILE = 'srsenb.conf' CFGFILE_SIB = 'srsenb_sib.conf' CFGFILE_RR = 'srsenb_rr.conf' CFGFILE_DRB = 'srsenb_drb.conf' LOGFILE = 'srsenb.log' PCAPFILE = 'srsenb.pcap' def __init__(self, testenv, conf): super().__init__(testenv, conf, srsENB.BINFILE) srslte_common.__init__(self) self.ue = None self.run_dir = None self.gen_conf = None self.config_file = None self.config_sib_file = None self.config_rr_file = None self.config_drb_file = None self.log_file = None self.pcap_file = None self.process = None self.rem_host = None self.remote_run_dir = None self.remote_config_file = None self.remote_config_sib_file = None self.remote_config_rr_file = None self.remote_config_drb_file = None self.remote_log_file = None self.remote_pcap_file = None self.enable_pcap = False self.metrics_file = None self.stop_sleep_time = 6 # We require at most 5s to stop self.testenv = testenv self.kpis = None self._additional_args = [] if not rf_type_valid(conf.get('rf_dev_type', None)): raise log.Error('Invalid rf_dev_type=%s' % conf.get('rf_dev_type', None)) def cleanup(self): if self.process is None: return if self._run_node.is_local(): return # Make sure we give the UE time to tear down self.sleep_after_stop() # copy back files (may not exist, for instance if there was an early error of process): try: self.rem_host.scpfrom('scp-back-log', self.remote_log_file, self.log_file) except Exception as e: self.log(repr(e)) if self.enable_pcap: try: self.rem_host.scpfrom('scp-back-pcap', self.remote_pcap_file, self.pcap_file) except Exception as e: self.log(repr(e)) # Collect KPIs for each TC self.testenv.test().set_kpis(self.get_kpis()) def start(self, epc): self.log('Starting srsENB') self._epc = epc self.run_dir = util.Dir(self.testenv.test().get_run_dir().new_dir(self.name())) self.configure() if self._run_node.is_local(): self.start_locally() else: self.start_remotely() # send t+Enter to enable console trace self.dbg('Enabling console trace') self.process.stdin_write('t\n') def start_remotely(self): remote_env = { 'LD_LIBRARY_PATH': self.remote_inst.child('lib') } remote_binary = self.remote_inst.child('bin', srsENB.BINFILE) args = (remote_binary, self.remote_config_file) args += tuple(self._additional_args) self.process = self.rem_host.RemoteProcessSafeExit(srsENB.BINFILE, self.remote_run_dir, args, remote_env=remote_env, wait_time_sec=7) self.testenv.remember_to_stop(self.process) self.process.launch() def start_locally(self): binary = self.inst.child('bin', srsENB.BINFILE) lib = self.inst.child('lib') env = { 'LD_LIBRARY_PATH': util.prepend_library_path(lib) } args = (binary, os.path.abspath(self.config_file)) args += tuple(self._additional_args) self.process = process.Process(self.name(), self.run_dir, args, env=env) self.testenv.remember_to_stop(self.process) self.process.launch() def gen_conf_file(self, path, filename, values): self.dbg('srsENB ' + filename + ':\n' + pprint.pformat(values)) with open(path, 'w') as f: r = template.render(filename, values) self.dbg(r) f.write(r) def configure(self): self.inst = util.Dir(os.path.abspath(self.testenv.suite().trial().get_inst('srslte', self._run_node.run_label()))) if not os.path.isdir(self.inst.child('lib')): raise log.Error('No lib/ in', self.inst) if not self.inst.isfile('bin', srsENB.BINFILE): raise log.Error('No %s binary in' % srsENB.BINFILE, self.inst) self.config_file = self.run_dir.child(srsENB.CFGFILE) self.config_sib_file = self.run_dir.child(srsENB.CFGFILE_SIB) self.config_rr_file = self.run_dir.child(srsENB.CFGFILE_RR) self.config_drb_file = self.run_dir.child(srsENB.CFGFILE_DRB) self.log_file = self.run_dir.child(srsENB.LOGFILE) self.pcap_file = self.run_dir.child(srsENB.PCAPFILE) if not self._run_node.is_local(): self.rem_host = remote.RemoteHost(self.run_dir, self._run_node.ssh_user(), self._run_node.ssh_addr()) remote_prefix_dir = util.Dir(srsENB.REMOTE_DIR) self.remote_inst = util.Dir(remote_prefix_dir.child(os.path.basename(str(self.inst)))) self.remote_run_dir = util.Dir(remote_prefix_dir.child(srsENB.BINFILE)) self.remote_config_file = self.remote_run_dir.child(srsENB.CFGFILE) self.remote_config_sib_file = self.remote_run_dir.child(srsENB.CFGFILE_SIB) self.remote_config_rr_file = self.remote_run_dir.child(srsENB.CFGFILE_RR) self.remote_config_drb_file = self.remote_run_dir.child(srsENB.CFGFILE_DRB) self.remote_log_file = self.remote_run_dir.child(srsENB.LOGFILE) self.remote_pcap_file = self.remote_run_dir.child(srsENB.PCAPFILE) values = super().configure(['srsenb']) sibfile = self.config_sib_file if self._run_node.is_local() else self.remote_config_sib_file rrfile = self.config_rr_file if self._run_node.is_local() else self.remote_config_rr_file drbfile = self.config_drb_file if self._run_node.is_local() else self.remote_config_drb_file logfile = self.log_file if self._run_node.is_local() else self.remote_log_file pcapfile = self.pcap_file if self._run_node.is_local() else self.remote_pcap_file config.overlay(values, dict(enb=dict(sib_filename=sibfile, rr_filename=rrfile, drb_filename=drbfile, log_filename=logfile, pcap_filename=pcapfile, ))) # Convert parsed boolean string to Python boolean: self.enable_pcap = util.str2bool(values['enb'].get('enable_pcap', 'false')) config.overlay(values, dict(enb={'enable_pcap': self.enable_pcap})) config.overlay(values, dict(enb={'enable_dl_awgn': util.str2bool(values['enb'].get('enable_dl_awgn', 'false'))})) self._additional_args = [] for add_args in values['enb'].get('additional_args', []): self._additional_args += add_args.split() # We need to set some specific variables programatically here to match IP addresses: if self._conf.get('rf_dev_type') == 'zmq': rf_dev_args = self.get_zmq_rf_dev_args() config.overlay(values, dict(enb=dict(rf_dev_args=rf_dev_args))) # Set UHD frame size as a function of the cell bandwidth on B2XX if self._conf.get('rf_dev_type') == 'uhd' and values['enb'].get('rf_dev_args', None) is not None: if 'b200' in values['enb'].get('rf_dev_args'): rf_dev_args = values['enb'].get('rf_dev_args', '') rf_dev_args += ',' if rf_dev_args != '' and not rf_dev_args.endswith(',') else '' if self._num_prb < 25: rf_dev_args += 'send_frame_size=512,recv_frame_size=512' elif self._num_prb == 25: rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024' elif self._num_prb > 25: rf_dev_args += 'num_recv_frames=64,num_send_frames=64' config.overlay(values, dict(enb=dict(rf_dev_args=rf_dev_args))) self.gen_conf = values self.gen_conf_file(self.config_file, srsENB.CFGFILE, values) self.gen_conf_file(self.config_sib_file, srsENB.CFGFILE_SIB, values) self.gen_conf_file(self.config_rr_file, srsENB.CFGFILE_RR, values) self.gen_conf_file(self.config_drb_file, srsENB.CFGFILE_DRB, values) if not self._run_node.is_local(): self.rem_host.recreate_remote_dir(self.remote_inst) self.rem_host.scp('scp-inst-to-remote', str(self.inst), remote_prefix_dir) self.rem_host.recreate_remote_dir(self.remote_run_dir) self.rem_host.scp('scp-cfg-to-remote', self.config_file, self.remote_config_file) self.rem_host.scp('scp-cfg-sib-to-remote', self.config_sib_file, self.remote_config_sib_file) self.rem_host.scp('scp-cfg-rr-to-remote', self.config_rr_file, self.remote_config_rr_file) self.rem_host.scp('scp-cfg-drb-to-remote', self.config_drb_file, self.remote_config_drb_file) def ue_add(self, ue): if self.ue is not None: raise log.Error("More than one UE per ENB not yet supported (ZeroMQ)") self.ue = ue def running(self): return not self.process.terminated() def get_rfemu(self, cell=0, dl=True): cell_list = self.gen_conf['enb'].get('cell_list', None) if cell_list is None or len(cell_list) < cell + 1: raise log.Error('cell_list attribute or subitem not found!') rfemu_cfg = cell_list[cell].get('dl_rfemu', None) if rfemu_cfg is None: raise log.Error('rfemu attribute not found in cell_list item!') rfemu_obj = rfemu.get_instance_by_type(rfemu_cfg['type'], rfemu_cfg) return rfemu_obj def ue_max_rate(self, downlink=True, num_carriers=1): # The max rate for a single UE per PRB configuration in TM1 with MCS 28 QAM64 max_phy_rate_tm1_dl = { 6 : 3.5e6, 15 : 11e6, 25 : 18e6, 50 : 36e6, 75 : 55e6, 100 : 75e6 } max_phy_rate_tm1_ul = { 6 : 1.7e6, 15 : 4.7e6, 25 : 10e6, 50 : 23e6, 75 : 34e6, 100 : 51e6 } if downlink: max_rate = max_phy_rate_tm1_dl[self.num_prb()] else: max_rate = max_phy_rate_tm1_ul[self.num_prb()] # MIMO only supported for Downlink if downlink: if self._txmode > 2: max_rate *= 2 # For 6 PRBs the max throughput is significantly lower if self._txmode >= 2 and self.num_prb() == 6: max_rate *= 0.85 # Assume we schedule all carriers max_rate *= num_carriers # Reduce expected UL rate due to missing extendedBSR support (see issue #1708) if downlink == False and num_carriers == 4 and self.num_prb() == 100: # all carriers run at 70% approx. max_rate *= 0.7 return max_rate # vim: expandtab tabstop=4 shiftwidth=4