Pau Espin Pedrol | 65beb8f | 2020-03-31 12:03:19 +0200 | [diff] [blame^] | 1 | # osmo_gsm_tester: specifics for running an SRS UE process |
| 2 | # |
| 3 | # Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH |
| 4 | # |
| 5 | # Author: Pau Espin Pedrol <pespin@sysmocom.de> |
| 6 | # |
| 7 | # This program is free software: you can redistribute it and/or modify |
| 8 | # it under the terms of the GNU General Public License as |
| 9 | # published by the Free Software Foundation, either version 3 of the |
| 10 | # License, or (at your option) any later version. |
| 11 | # |
| 12 | # This program is distributed in the hope that it will be useful, |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | # GNU General Public License for more details. |
| 16 | # |
| 17 | # You should have received a copy of the GNU General Public License |
| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | |
| 20 | import os |
| 21 | import pprint |
| 22 | |
| 23 | from . import log, util, config, template, process, remote |
| 24 | from .run_node import RunNode |
| 25 | from .event_loop import MainLoop |
| 26 | from .ms import MS |
| 27 | |
| 28 | def rf_type_valid(rf_type_str): |
| 29 | return rf_type_str in ('uhd', 'zmq') |
| 30 | |
| 31 | #reference: srsLTE.git srslte_symbol_sz() |
| 32 | def num_prb2symbol_sz(num_prb): |
| 33 | if num_prb <= 6: |
| 34 | return 128 |
| 35 | if num_prb <= 15: |
| 36 | return 256 |
| 37 | if num_prb <= 25: |
| 38 | return 384 |
| 39 | if num_prb <= 50: |
| 40 | return 768 |
| 41 | if num_prb <= 75: |
| 42 | return 1024 |
| 43 | if num_prb <= 110: |
| 44 | return 1536 |
| 45 | raise log.Error('invalid num_prb %r', num_prb) |
| 46 | |
| 47 | def num_prb2base_srate(num_prb): |
| 48 | return num_prb2symbol_sz(num_prb) * 15 * 1000 |
| 49 | |
| 50 | class AmarisoftUE(MS): |
| 51 | |
| 52 | REMOTE_DIR = '/osmo-gsm-tester-amarisoftue' |
| 53 | BINFILE = 'lteue' |
| 54 | CFGFILE = 'amarisoft_lteue.cfg' |
| 55 | CFGFILE_RF = 'amarisoft_rf_driver.cfg' |
| 56 | LOGFILE = 'lteue.log' |
| 57 | |
| 58 | def __init__(self, suite_run, conf): |
| 59 | self._addr = conf.get('addr', None) |
| 60 | if self._addr is None: |
| 61 | raise log.Error('addr not set') |
| 62 | super().__init__('amarisoftue_%s' % self._addr, conf) |
| 63 | self.enb = None |
| 64 | self.run_dir = None |
| 65 | self.inst = None |
| 66 | self._bin_prefix = None |
| 67 | self.config_file = None |
| 68 | self.config_rf_file = None |
| 69 | self.log_file = None |
| 70 | self.process = None |
| 71 | self.rem_host = None |
| 72 | self.remote_inst = None |
| 73 | self.remote_config_file = None |
| 74 | self.remote_config_rf_file = None |
| 75 | self.remote_log_file = None |
| 76 | self.suite_run = suite_run |
| 77 | self.remote_user = conf.get('remote_user', None) |
| 78 | if not rf_type_valid(conf.get('rf_dev_type', None)): |
| 79 | raise log.Error('Invalid rf_dev_type=%s' % conf.get('rf_dev_type', None)) |
| 80 | |
| 81 | def bin_prefix(self): |
| 82 | if self._bin_prefix is None: |
| 83 | self._bin_prefix = os.getenv('AMARISOFT_PATH_UE', None) |
| 84 | if self._bin_prefix == None: |
| 85 | self._bin_prefix = self.suite_run.trial.get_inst('amarisoftue') |
| 86 | return self._bin_prefix |
| 87 | |
| 88 | def cleanup(self): |
| 89 | if self.process is None: |
| 90 | return |
| 91 | if self.setup_runs_locally(): |
| 92 | return |
| 93 | # copy back files (may not exist, for instance if there was an early error of process): |
| 94 | try: |
| 95 | self.rem_host.scpfrom('scp-back-log', self.remote_log_file, self.log_file) |
| 96 | except Exception as e: |
| 97 | self.log(repr(e)) |
| 98 | |
| 99 | def setup_runs_locally(self): |
| 100 | return self.remote_user is None |
| 101 | |
| 102 | def netns(self): |
| 103 | return "amarisoftue1" |
| 104 | |
| 105 | def stop(self): |
| 106 | self.suite_run.stop_process(self.process) |
| 107 | |
| 108 | def connect(self, enb): |
| 109 | self.log('Starting amarisoftue') |
| 110 | self.enb = enb |
| 111 | self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name())) |
| 112 | self.configure() |
| 113 | if self.setup_runs_locally(): |
| 114 | self.start_locally() |
| 115 | else: |
| 116 | self.start_remotely() |
| 117 | |
| 118 | # send t+Enter to enable console trace |
| 119 | self.dbg('Enabling console trace') |
| 120 | self.process.stdin_write('t\n') |
| 121 | |
| 122 | def start_remotely(self): |
| 123 | remote_binary = self.remote_inst.child('', AmarisoftUE.BINFILE) |
| 124 | # setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead. |
| 125 | self.log('Setting RPATH for ltetue') |
| 126 | # amarisoftue binary needs patchelf >= 0.9+52 to avoid failing during patch. OS#4389, patchelf-GH#192. |
| 127 | self.rem_host.set_remote_env({'PATCHELF_BIN': '/opt/bin/patchelf-v0.10' }) |
| 128 | self.rem_host.change_elf_rpath(remote_binary, str(self.remote_inst)) |
| 129 | |
| 130 | # amarisoftue requires CAP_SYS_ADMIN to cjump to net network namespace: netns(CLONE_NEWNET): |
| 131 | # amarisoftue requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF): |
| 132 | self.log('Applying CAP_SYS_ADMIN+CAP_NET_ADMIN capability to ltetue') |
| 133 | self.rem_host.setcap_netsys_admin(remote_binary) |
| 134 | |
| 135 | self.log('Creating netns %s' % self.netns()) |
| 136 | self.rem_host.create_netns(self.netns()) |
| 137 | |
| 138 | args = (remote_binary, self.remote_config_file) |
| 139 | self.process = self.rem_host.RemoteProcess(AmarisoftUE.BINFILE, args) |
| 140 | self.suite_run.remember_to_stop(self.process) |
| 141 | self.process.launch() |
| 142 | |
| 143 | def start_locally(self): |
| 144 | binary = self.inst.child('', AmarisoftUE.BINFILE) |
| 145 | env = {} |
| 146 | |
| 147 | # setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead. |
| 148 | self.log('Setting RPATH for lteue') |
| 149 | util.change_elf_rpath(binary, util.prepend_library_path(self.inst), self.run_dir.new_dir('patchelf')) |
| 150 | |
| 151 | # amarisoftue requires CAP_SYS_ADMIN to cjump to net network namespace: netns(CLONE_NEWNET): |
| 152 | # amarisoftue requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF): |
| 153 | self.log('Applying CAP_SYS_ADMIN+CAP_NET_ADMIN capability to lteue') |
| 154 | util.setcap_netsys_admin(binary, self.run_dir.new_dir('setcap_netsys_admin')) |
| 155 | |
| 156 | self.log('Creating netns %s' % self.netns()) |
| 157 | util.create_netns(self.netns(), self.run_dir.new_dir('create_netns')) |
| 158 | |
| 159 | args = (binary, os.path.abspath(self.config_file)) |
| 160 | self.dbg(run_dir=self.run_dir, binary=binary, env=env) |
| 161 | self.process = process.Process(self.name(), self.run_dir, args, env=env) |
| 162 | self.suite_run.remember_to_stop(self.process) |
| 163 | self.process.launch() |
| 164 | |
| 165 | def gen_conf_file(self, path, filename, values): |
| 166 | self.dbg('AmarisoftUE ' + filename + ':\n' + pprint.pformat(values)) |
| 167 | with open(path, 'w') as f: |
| 168 | r = template.render(filename, values) |
| 169 | self.dbg(r) |
| 170 | f.write(r) |
| 171 | |
| 172 | def configure(self): |
| 173 | self.inst = util.Dir(os.path.abspath(self.bin_prefix())) |
| 174 | if not self.inst.isfile('', AmarisoftUE.BINFILE): |
| 175 | raise log.Error('No %s binary in' % AmarisoftUE.BINFILE, self.inst) |
| 176 | |
| 177 | self.config_file = self.run_dir.child(AmarisoftUE.CFGFILE) |
| 178 | self.config_rf_file = self.run_dir.child(AmarisoftUE.CFGFILE_RF) |
| 179 | self.log_file = self.run_dir.child(AmarisoftUE.LOGFILE) |
| 180 | |
| 181 | if not self.setup_runs_locally(): |
| 182 | self.rem_host = remote.RemoteHost(self.run_dir, self.remote_user, self._addr) |
| 183 | remote_prefix_dir = util.Dir(AmarisoftUE.REMOTE_DIR) |
| 184 | self.remote_inst = util.Dir(remote_prefix_dir.child(os.path.basename(str(self.inst)))) |
| 185 | remote_run_dir = util.Dir(remote_prefix_dir.child(AmarisoftUE.BINFILE)) |
| 186 | |
| 187 | self.remote_config_file = remote_run_dir.child(AmarisoftUE.CFGFILE) |
| 188 | self.remote_config_rf_file = remote_run_dir.child(AmarisoftUE.CFGFILE_RF) |
| 189 | self.remote_log_file = remote_run_dir.child(AmarisoftUE.LOGFILE) |
| 190 | |
| 191 | values = dict(ue=config.get_defaults('amarisoft')) |
| 192 | config.overlay(values, dict(ue=config.get_defaults('amarisoftue'))) |
| 193 | config.overlay(values, dict(ue=self.suite_run.config().get('amarisoft', {}))) |
| 194 | config.overlay(values, dict(ue=self.suite_run.config().get('modem', {}))) |
| 195 | config.overlay(values, dict(ue=self._conf)) |
| 196 | config.overlay(values, dict(ue=dict(num_antennas = self.enb.num_ports()))) |
| 197 | |
| 198 | logfile = self.log_file if self.setup_runs_locally() else self.remote_log_file |
| 199 | config.overlay(values, dict(ue=dict(log_filename=logfile))) |
| 200 | |
| 201 | # We need to set some specific variables programatically here to match IP addresses: |
| 202 | if self._conf.get('rf_dev_type') == 'zmq': |
| 203 | base_srate = num_prb2base_srate(self.enb.num_prb()) |
| 204 | rf_dev_args = 'tx_port0=tcp://' + self.addr() + ':2001' \ |
| 205 | + ',tx_port1=tcp://' + self.addr() + ':2003' \ |
| 206 | + ',rx_port0=tcp://' + self.enb.addr() + ':2000' \ |
| 207 | + ',rx_port1=tcp://' + self.enb.addr() + ':2002' \ |
| 208 | + ',tx_freq=2510e6,rx_freq=2630e6,tx_freq2=2530e6,rx_freq2=2650e6' \ |
| 209 | + ',id=ue,base_srate='+ str(base_srate) |
| 210 | config.overlay(values, dict(ue=dict(sample_rate = base_srate / (1000*1000), |
| 211 | rf_dev_args = rf_dev_args))) |
| 212 | |
| 213 | # Set UHD frame size as a function of the cell bandwidth on B2XX |
| 214 | if self._conf.get('rf_dev_type') == 'UHD' and values['ue'].get('rf_dev_args', None) is not None: |
| 215 | if 'b200' in values['ue'].get('rf_dev_args'): |
| 216 | rf_dev_args = values['ue'].get('rf_dev_args', '') |
| 217 | rf_dev_args += ',' if rf_dev_args != '' and not rf_dev_args.endswith(',') else '' |
| 218 | |
| 219 | if self.enb.num_prb() < 25: |
| 220 | rf_dev_args += 'send_frame_size=512,recv_frame_size=512' |
| 221 | elif self.enb.num_prb() == 25: |
| 222 | rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024' |
| 223 | elif self.enb.num_prb() > 50: |
| 224 | rf_dev_args += 'num_recv_frames=64,num_send_frames=64' |
| 225 | |
| 226 | # For 15 and 20 MHz, further reduce over the wire format to sc12 |
| 227 | if self.enb.num_prb() >= 75: |
| 228 | rf_dev_args += ',otw_format=sc12' |
| 229 | |
| 230 | config.overlay(values, dict(ue=dict(rf_dev_args=rf_dev_args))) |
| 231 | |
| 232 | # rf driver is shared between amarisoft enb and ue, so it has a |
| 233 | # different cfg namespace 'trx'. Copy needed values over there: |
| 234 | config.overlay(values, dict(trx=dict(rf_dev_type=values['ue'].get('rf_dev_type', None), |
| 235 | rf_dev_args=values['ue'].get('rf_dev_args', None)))) |
| 236 | |
| 237 | self.gen_conf_file(self.config_file, AmarisoftUE.CFGFILE, values) |
| 238 | self.gen_conf_file(self.config_rf_file, AmarisoftUE.CFGFILE_RF, values) |
| 239 | |
| 240 | if not self.setup_runs_locally(): |
| 241 | self.rem_host.recreate_remote_dir(self.remote_inst) |
| 242 | self.rem_host.scp('scp-inst-to-remote', str(self.inst), remote_prefix_dir) |
| 243 | self.rem_host.recreate_remote_dir(remote_run_dir) |
| 244 | self.rem_host.scp('scp-cfg-to-remote', self.config_file, self.remote_config_file) |
| 245 | self.rem_host.scp('scp-cfg-rf-to-remote', self.config_rf_file, self.remote_config_rf_file) |
| 246 | |
| 247 | def is_connected(self, mcc_mnc=None): |
| 248 | return 'Network attach successful.' in (self.process.get_stdout() or '') |
| 249 | |
| 250 | def is_attached(self): |
| 251 | return self.is_connected() |
| 252 | |
| 253 | def running(self): |
| 254 | return not self.process.terminated() |
| 255 | |
| 256 | def addr(self): |
| 257 | return self._addr |
| 258 | |
| 259 | def run_node(self): |
| 260 | return RunNode(RunNode.T_REM_SSH, self._addr, self.remote_user, self._addr) |
| 261 | |
| 262 | def run_netns_wait(self, name, popen_args): |
| 263 | if self.setup_runs_locally(): |
| 264 | proc = process.NetNSProcess(name, self.run_dir.new_dir(name), self.netns(), popen_args, env={}) |
| 265 | else: |
| 266 | proc = self.rem_host.RemoteNetNSProcess(name, self.netns(), popen_args, env={}) |
| 267 | proc.launch_sync() |
| 268 | return proc |
| 269 | |
| 270 | def verify_metric(self, value, operation='avg', metric='dl_brate', criterion='gt'): |
| 271 | return 'metrics not yet implemented with Amarisoft UE' |
| 272 | |
| 273 | # vim: expandtab tabstop=4 shiftwidth=4 |