diff options
| -rwxr-xr-x | firmware/usrp3/x300/x300_aurora_bist.py | 108 |
1 files changed, 101 insertions, 7 deletions
diff --git a/firmware/usrp3/x300/x300_aurora_bist.py b/firmware/usrp3/x300/x300_aurora_bist.py index 225cd030b..f5e119b66 100755 --- a/firmware/usrp3/x300/x300_aurora_bist.py +++ b/firmware/usrp3/x300/x300_aurora_bist.py @@ -1,6 +1,3 @@ -from __future__ import print_function -from builtins import str -from builtins import range #!/usr/bin/env python # # Copyright 2016 Ettus Research LLC @@ -19,12 +16,17 @@ from builtins import range # along with this program. If not, see <http://www.gnu.org/licenses/>. # +from __future__ import print_function +from builtins import str +from builtins import range + import x300_debug import argparse import time import datetime import math import tqdm +import numpy ######################################################################## # constants @@ -86,9 +88,9 @@ def get_rate_setting(rate): return (div-1, 8e-6 * BUS_CLK_RATE * (1.0 - 1.0/(div-1))) return (0, 8e-6 * BUS_CLK_RATE) -def run_loopback_bist(ctrls, duration, xxx_todo_changeme): - (rate_sett, rate) = xxx_todo_changeme - print('[INFO] Running Loopback BIST at %.0fMB/s for %.0fs...'%(rate,duration)) +def run_ber_loopback_bist(ctrls, duration, rate_tuple): + (rate_sett, rate) = rate_tuple + print('[INFO] Running BER Loopback BIST at %.0fMB/s for %.0fs...'%(rate,duration)) # Determine offsets (mst_port, link_up) = get_aurora_info(ctrls['master']) MST_MAC_REG_BASE = SFP0_MAC_REG_BASE if (mst_port == 0) else SFP1_MAC_REG_BASE @@ -165,6 +167,93 @@ def run_loopback_bist(ctrls, duration, xxx_todo_changeme): if 'slave' in ctrls: ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, 0) +def run_latency_loopback_bist(ctrls, duration, rate_tuple): + (rate_sett, rate) = rate_tuple + print('[INFO] Running Latency Loopback BIST at %.0fMB/s for %.0fs...'%(rate,duration)) + # Determine offsets + (mst_port, link_up) = get_aurora_info(ctrls['master']) + MST_MAC_REG_BASE = SFP0_MAC_REG_BASE if (mst_port == 0) else SFP1_MAC_REG_BASE + if 'slave' in ctrls: + (sla_port, link_up) = get_aurora_info(ctrls['slave']) + SLA_MAC_REG_BASE = SFP0_MAC_REG_BASE if (sla_port == 0) else SFP1_MAC_REG_BASE + # Reset both PHYS + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, MAC_CTRL_PHY_RESET) + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, 0) + if 'slave' in ctrls: + ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, MAC_CTRL_PHY_RESET) + ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, 0) + time.sleep(1.5) + + # Put the slave in loopback mode and the master in BIST mode + if 'slave' in ctrls: + ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, MAC_CTRL_BIST_LOOPBACK_EN) + if rate_sett == 0: + master_ctrl = MAC_CTRL_BIST_GEN_EN|MAC_CTRL_BIST_CHECKER_EN + else: + master_ctrl = ((rate_sett - 1) << MAC_CTRL_BIST_RATE_OFFSET)|MAC_CTRL_BIST_GEN_EN|MAC_CTRL_BIST_CHECKER_EN + + start_time = datetime.datetime.now() + latencies = [] + mst_lock_errors = 0 + mst_hard_errors = 0 + mst_overruns = 0 + try: + for i in tqdm.tqdm(list(range(duration*10)), desc='[INFO] Progress'): + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, master_ctrl) + # Wait and check if BIST locked + time.sleep(0.05) + mst_status = ctrls['master'].peek(MST_MAC_REG_BASE + MAC_REG_STATUS) + if (not (mst_status & MAC_STATUS_BIST_LOCKED_MSK)): + mst_lock_errors += 1 + # Turn off the BIST generator + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, MAC_CTRL_BIST_CHECKER_EN) + # Validate status and no overruns + mst_status = ctrls['master'].peek(MST_MAC_REG_BASE + MAC_REG_STATUS) + mst_overruns += ctrls['master'].peek(MST_MAC_REG_BASE + MAC_REG_OVERRUNS) + if (mst_status & MAC_STATUS_HARD_ERR_MSK): + mst_hard_errors += 1 + time.sleep(0.05) + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, 0) + # Compure latency + mst_latency_cyc = 16.0*((mst_status & MAC_STATUS_BIST_LATENCY_MSK) >> MAC_STATUS_BIST_LATENCY_OFFSET) + mst_latency_us = 1e6*mst_latency_cyc/AURORA_CLK_RATE + latencies.append(mst_latency_us) + except KeyboardInterrupt: + print('[WARNING] Operation cancelled by user.') + stop_time = datetime.datetime.now() + # Report + if (mst_lock_errors > 0): + print('[ERROR] BIST engine did not lock onto a PRBS word %d times!'%(mst_lock_errors)) + if (mst_hard_errors > 0): + print('[ERROR] There were %d hard errors in master PHY'%(mst_hard_errors)) + if (mst_overruns > 0): + print('[ERROR] There were %d buffer overruns in master PHY'%(mst_overruns)) + + print('[INFO] BIST Complete!') + print('- Elapsed Time = ' + str(stop_time - start_time)) + print('- Roundtrip Latency Mean = %.2fus'%(numpy.mean(latencies))) + print('- Roundtrip Latency Stdev = %.2fus'%(numpy.std(latencies))) + # Turn off BIST loopback + time.sleep(0.5) + if 'slave' in ctrls: + ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, 0) + if 'slave' in ctrls: + sla_status = ctrls['slave'].peek(SLA_MAC_REG_BASE + MAC_REG_STATUS) + sla_overruns = ctrls['slave'].peek(SLA_MAC_REG_BASE + MAC_REG_OVERRUNS) + if (sla_status & MAC_STATUS_HARD_ERR_MSK): + print('[ERROR] Hard errors in slave PHY') + if (sla_overruns > 0): + print('[ERROR] Buffer overruns in slave PHY') + # Drain and Cleanup + print('[INFO] Cleaning up...') + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, MAC_CTRL_BIST_CHECKER_EN) + if 'slave' in ctrls: + ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, MAC_CTRL_BIST_CHECKER_EN) + time.sleep(0.5) + ctrls['master'].poke(MST_MAC_REG_BASE + MAC_REG_CTRL, 0) + if 'slave' in ctrls: + ctrls['slave'].poke(SLA_MAC_REG_BASE + MAC_REG_CTRL, 0) + ######################################################################## # command line options ######################################################################## @@ -172,6 +261,7 @@ def get_options(): parser = argparse.ArgumentParser(description='Controller for the USRP X3X0 Aurora BIST Engine') parser.add_argument('--master', type=str, default=None, required=True, help='IP Address of master USRP-X3X0 device') parser.add_argument('--slave', type=str, default=None, help='IP Address of slave USRP-X3X0 device') + parser.add_argument('--test', type=str, default='ber', choices=['ber', 'latency'], help='Type of test to run') parser.add_argument('--duration', type=int, default=10, help='Duration of test in seconds') parser.add_argument('--rate', type=int, default=1245, help='BIST throughput in MB/s') return parser.parse_args() @@ -210,4 +300,8 @@ if __name__=='__main__': exit(1) # Run BIST - run_loopback_bist(ctrls, options.duration, get_rate_setting(options.rate)) + if options.test == 'ber': + run_ber_loopback_bist(ctrls, options.duration, get_rate_setting(options.rate)) + else: + run_latency_loopback_bist(ctrls, options.duration, get_rate_setting(options.rate)) + |