Hi Andrew, Thank you for the review comments. > EXTERNAL EMAIL: Do not click links or open attachments unless you know the > content is safe > > On Tue, Sep 17, 2024 at 08:04:07AM +0530, Mohan Prasad J wrote: > > Add selftest file to test basic features of a NIC driver. > > Tests for link modes, auto-negotiation are placed. > > Selftest makes use of ksft modules and ethtool. > > Add selftest file in the Makefile. > > > > Signed-off-by: Mohan Prasad J <mohan.prasad@xxxxxxxxxxxxx> > > --- > > .../testing/selftests/drivers/net/hw/Makefile | 1 + > > .../drivers/net/hw/nic_basic_tests.py | 145 ++++++++++++++++++ > > 2 files changed, 146 insertions(+) > > create mode 100644 > > tools/testing/selftests/drivers/net/hw/nic_basic_tests.py > > > > diff --git a/tools/testing/selftests/drivers/net/hw/Makefile > > b/tools/testing/selftests/drivers/net/hw/Makefile > > index c9f2f48fc..9f105227c 100644 > > --- a/tools/testing/selftests/drivers/net/hw/Makefile > > +++ b/tools/testing/selftests/drivers/net/hw/Makefile > > @@ -10,6 +10,7 @@ TEST_PROGS = \ > > hw_stats_l3.sh \ > > hw_stats_l3_gre.sh \ > > loopback.sh \ > > + nic_basic_tests.py \ > > pp_alloc_fail.py \ > > rss_ctx.py \ > > # > > diff --git a/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py > > b/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py > > new file mode 100644 > > index 000000000..27f780032 > > --- /dev/null > > +++ b/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py > > @@ -0,0 +1,145 @@ > > +#!/usr/bin/env python3 > > +# SPDX-License-Identifier: GPL-2.0 > > + > > +#Introduction: > > +#This file has basic tests for generic NIC drivers. > > +#The test comprises of auto-negotiation, speed and duplex checks. > > +#Also has tests to check the throughput # > > +#Setup: > > +#Connect the DUT PC with NIC card to partner pc back via ethernet > > +medium of your choice(RJ45, T1) # > > +# DUT PC Partner PC > > +#┌───────────────────────┐ > ┌──────────────────────────┐ > > +#│ │ │ │ > > +#│ │ │ │ > > +#│ ┌───────────┐ │ │ > > +#│ │DUT NIC │ Eth │ │ > > +#│ │Interface ─┼─────────────────────────┼─ any eth > Interface │ > > +#│ └───────────┘ │ │ > > +#│ │ │ │ > > +#│ │ │ │ > > +#└───────────────────────┘ > └──────────────────────────┘ > > +# > > +#Configurations: > > +# Change the below configuration based on your hw needs. > > +# """Default values""" > > +sleep_time = 5 #time taken to wait for transitions to happen, in seconds. > > +test_duration = 5 #performance test duration for the throughput check, in > seconds. > > +throughput_threshold = 0.8 #percentage of throughput required to pass > > +the throughput > > + > > +import time > > +import os > > +import re > > +import configparser > > +import json > > +from lib.py import ksft_run, ksft_exit, ksft_pr, ksft_eq from lib.py > > +import KsftFailEx, KsftSkipEx from lib.py import NetDrvEpEnv from > > +lib.py import cmd from lib.py import ethtool > > + > > +"""Global variables""" > > +common_link_modes = [] > > Software engineers have a dislike for global variables. In this patch, it is not > even used. Please consider replacing it by passing it as a parameter, or turn > the code into a class and make it part of self. I will change this in the next version. > > > +def test_link_modes(cfg) -> None: > > + global common_link_modes > > + link_modes = get_ethtool_content(cfg.ifname, "Supported link modes:") > > + partner_link_modes = get_ethtool_content(cfg.ifname, "Link > > +partner advertised link modes:") > > + > > + if link_modes and partner_link_modes: > > + for idx1 in range(len(link_modes)): > > + for idx2 in range(len(partner_link_modes)): > > + if link_modes[idx1] == partner_link_modes[idx2]: > > + common_link_modes.append(link_modes[idx1]) > > You can use the power of python here. > > "supported-link-modes": [ > "10baseT/Half","10baseT/Full","100baseT/Half","100baseT/Full","1000baseT/ > Full" ], > "link-partner-modes": [ > "10baseT/Half","10baseT/Full","100baseT/Half","100baseT/Full","1000baseT/ > Full" ], > > convert the list into a set, and then use 'and'. > > common_modes = set(josn['supported-link-modes']) and set(json['link- > partner-modes']) I am figuring out the way to get the ethtool output in json format. Once successful, I will change this implementation as suggested in next version.
