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| 1 | +#!/usr/bin/env python3 |
| 2 | +# SPDX-License-Identifier: GPL-2.0 |
| 3 | + |
| 4 | +#Introduction: |
| 5 | +#This file has basic performance test for generic NIC drivers. |
| 6 | +#The test comprises of throughput check for TCP and UDP streams. |
| 7 | +# |
| 8 | +#Setup: |
| 9 | +#Connect the DUT PC with NIC card to partner pc back via ethernet medium of your choice(RJ45, T1) |
| 10 | +# |
| 11 | +# DUT PC Partner PC |
| 12 | +#┌───────────────────────┐ ┌──────────────────────────┐ |
| 13 | +#│ │ │ │ |
| 14 | +#│ │ │ │ |
| 15 | +#│ ┌───────────┐ │ │ |
| 16 | +#│ │DUT NIC │ Eth │ │ |
| 17 | +#│ │Interface ─┼─────────────────────────┼─ any eth Interface │ |
| 18 | +#│ └───────────┘ │ │ |
| 19 | +#│ │ │ │ |
| 20 | +#│ │ │ │ |
| 21 | +#└───────────────────────┘ └──────────────────────────┘ |
| 22 | +# |
| 23 | +#Configurations: |
| 24 | +#To prevent interruptions, Add ethtool, ip to the sudoers list in remote PC and get the ssh key from remote. |
| 25 | +#Required minimum ethtool version is 6.10 |
| 26 | +#Change the below configuration based on your hw needs. |
| 27 | +# """Default values""" |
| 28 | +#time_delay = 8 #time taken to wait for transitions to happen, in seconds. |
| 29 | +#test_duration = 10 #performance test duration for the throughput check, in seconds. |
| 30 | +#send_throughput_threshold = 80 #percentage of send throughput required to pass the check |
| 31 | +#receive_throughput_threshold = 50 #percentage of receive throughput required to pass the check |
| 32 | + |
| 33 | +import time |
| 34 | +import json |
| 35 | +import argparse |
| 36 | +from lib.py import ksft_run, ksft_exit, ksft_pr, ksft_true |
| 37 | +from lib.py import KsftFailEx, KsftSkipEx, GenerateTraffic |
| 38 | +from lib.py import NetDrvEpEnv, bkg, wait_port_listen |
| 39 | +from lib.py import cmd |
| 40 | +from lib.py import LinkConfig |
| 41 | + |
| 42 | +class TestConfig: |
| 43 | + def __init__(self, time_delay: int, test_duration: int, send_throughput_threshold: int, receive_throughput_threshold: int) -> None: |
| 44 | + self.time_delay = time_delay |
| 45 | + self.test_duration = test_duration |
| 46 | + self.send_throughput_threshold = send_throughput_threshold |
| 47 | + self.receive_throughput_threshold = receive_throughput_threshold |
| 48 | + |
| 49 | +def _pre_test_checks(cfg: object, link_config: LinkConfig) -> None: |
| 50 | + if not link_config.verify_link_up(): |
| 51 | + KsftSkipEx(f"Link state of interface {cfg.ifname} is DOWN") |
| 52 | + common_link_modes = link_config.common_link_modes |
| 53 | + if common_link_modes is None: |
| 54 | + KsftSkipEx("No common link modes found") |
| 55 | + if link_config.partner_netif == None: |
| 56 | + KsftSkipEx("Partner interface is not available") |
| 57 | + if link_config.check_autoneg_supported(): |
| 58 | + KsftSkipEx("Auto-negotiation not supported by local") |
| 59 | + if link_config.check_autoneg_supported(remote=True): |
| 60 | + KsftSkipEx("Auto-negotiation not supported by remote") |
| 61 | + cfg.require_cmd("iperf3", remote=True) |
| 62 | + |
| 63 | +def check_throughput(cfg: object, link_config: LinkConfig, test_config: TestConfig, protocol: str, traffic: GenerateTraffic) -> None: |
| 64 | + common_link_modes = link_config.common_link_modes |
| 65 | + speeds, duplex_modes = link_config.get_speed_duplex_values(common_link_modes) |
| 66 | + """Test duration in seconds""" |
| 67 | + duration = test_config.test_duration |
| 68 | + |
| 69 | + ksft_pr(f"{protocol} test") |
| 70 | + test_type = "-u" if protocol == "UDP" else "" |
| 71 | + |
| 72 | + send_throughput = [] |
| 73 | + receive_throughput = [] |
| 74 | + for idx in range(0, len(speeds)): |
| 75 | + if link_config.set_speed_and_duplex(speeds[idx], duplex_modes[idx]) == False: |
| 76 | + raise KsftFailEx(f"Not able to set speed and duplex parameters for {cfg.ifname}") |
| 77 | + time.sleep(test_config.time_delay) |
| 78 | + if not link_config.verify_link_up(): |
| 79 | + raise KsftSkipEx(f"Link state of interface {cfg.ifname} is DOWN") |
| 80 | + |
| 81 | + send_command=f"{test_type} -b 0 -t {duration} --json" |
| 82 | + receive_command=f"{test_type} -b 0 -t {duration} --reverse --json" |
| 83 | + |
| 84 | + send_result = traffic.run_remote_test(cfg, command=send_command) |
| 85 | + if send_result.ret != 0: |
| 86 | + raise KsftSkipEx("Error occurred during data transmit: {send_result.stdout}") |
| 87 | + |
| 88 | + send_output = send_result.stdout |
| 89 | + send_data = json.loads(send_output) |
| 90 | + |
| 91 | + """Convert throughput to Mbps""" |
| 92 | + send_throughput.append(round(send_data['end']['sum_sent']['bits_per_second'] / 1e6, 2)) |
| 93 | + ksft_pr(f"{protocol}: Send throughput: {send_throughput[idx]} Mbps") |
| 94 | + |
| 95 | + receive_result = traffic.run_remote_test(cfg, command=receive_command) |
| 96 | + if receive_result.ret != 0: |
| 97 | + raise KsftSkipEx("Error occurred during data receive: {receive_result.stdout}") |
| 98 | + |
| 99 | + receive_output = receive_result.stdout |
| 100 | + receive_data = json.loads(receive_output) |
| 101 | + |
| 102 | + """Convert throughput to Mbps""" |
| 103 | + receive_throughput.append(round(receive_data['end']['sum_received']['bits_per_second'] / 1e6, 2)) |
| 104 | + ksft_pr(f"{protocol}: Receive throughput: {receive_throughput[idx]} Mbps") |
| 105 | + |
| 106 | + """Check whether throughput is not below the threshold (default values set at start)""" |
| 107 | + for idx in range(0, len(speeds)): |
| 108 | + send_threshold = float(speeds[idx]) * float(test_config.send_throughput_threshold / 100) |
| 109 | + receive_threshold = float(speeds[idx]) * float(test_config.receive_throughput_threshold / 100) |
| 110 | + ksft_true(send_throughput[idx] >= send_threshold, f"{protocol}: Send throughput is below threshold for {speeds[idx]} Mbps in {duplex_modes[idx]} duplex") |
| 111 | + ksft_true(receive_throughput[idx] >= receive_threshold, f"{protocol}: Receive throughput is below threshold for {speeds[idx]} Mbps in {duplex_modes[idx]} duplex") |
| 112 | + |
| 113 | +def test_tcp_throughput(cfg: object, link_config: LinkConfig, test_config: TestConfig, traffic: GenerateTraffic) -> None: |
| 114 | + _pre_test_checks(cfg, link_config) |
| 115 | + check_throughput(cfg, link_config, test_config, 'TCP', traffic) |
| 116 | + |
| 117 | +def test_udp_throughput(cfg: object, link_config: LinkConfig, test_config: TestConfig, traffic: GenerateTraffic) -> None: |
| 118 | + _pre_test_checks(cfg, link_config) |
| 119 | + check_throughput(cfg, link_config, test_config, 'UDP', traffic) |
| 120 | + |
| 121 | +def main() -> None: |
| 122 | + parser = argparse.ArgumentParser(description="Run basic performance test for NIC driver") |
| 123 | + parser.add_argument('--time-delay', type=int, default=8, help='Time taken to wait for transitions to happen(in seconds). Default is 8 seconds.') |
| 124 | + parser.add_argument('--test-duration', type=int, default=10, help='Performance test duration for the throughput check, in seconds. Default is 10 seconds.') |
| 125 | + parser.add_argument('--stt', type=int, default=80, help='Send throughput Threshold: Percentage of send throughput upon actual throughput required to pass the throughput check (in percentage). Default is 80.') |
| 126 | + parser.add_argument('--rtt', type=int, default=50, help='Receive throughput Threshold: Percentage of receive throughput upon actual throughput required to pass the throughput check (in percentage). Default is 50.') |
| 127 | + args=parser.parse_args() |
| 128 | + test_config = TestConfig(args.time_delay, args.test_duration, args.stt, args.rtt) |
| 129 | + with NetDrvEpEnv(__file__, nsim_test=False) as cfg: |
| 130 | + traffic = GenerateTraffic(cfg) |
| 131 | + link_config = LinkConfig(cfg) |
| 132 | + ksft_run(globs=globals(), case_pfx={"test_"}, args=(cfg, link_config, test_config, traffic, )) |
| 133 | + link_config.reset_interface() |
| 134 | + ksft_exit() |
| 135 | + |
| 136 | +if __name__ == "__main__": |
| 137 | + main() |
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