Quelle  module.sh   Sprache: Shell

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Modules specific tests cases

# protect against multiple inclusion
if [ $FILE_MODULE ]; then
 return 0
else
 FILE_MODULE=DONE
fi

source cpu.sh
source cpufreq.sh
source governor.sh

# Check basic insmod/rmmod
# $1: module
test_basic_insmod_rmmod()
{
 printf "** Test: Running ${FUNCNAME[0]} **\n\n"

 printf "Inserting $1 module\n"
 # insert module
 insmod $1
 if [ $? != 0 ]; then
  ktap_exit_fail_msg "Insmod $1 failed\n"
 fi

 printf "Removing $1 module\n"
 # remove module
 rmmod $1
 if [ $? != 0 ]; then
  ktap_exit_fail_msg "rmmod $1 failed\n"
 fi

 printf "\n"
}

# Insert cpufreq driver module and perform basic tests
# $1: cpufreq-driver module to insert
# $2: If we want to play with CPUs (1) or not (0)
module_driver_test_single()
{
 printf "** Test: Running ${FUNCNAME[0]} for driver $1 and cpus_hotplug=$2 **\n\n"

 if [ $2 -eq 1 ]; then
  # offline all non-boot CPUs
  for_each_non_boot_cpu offline_cpu
  printf "\n"
 fi

 # insert module
 printf "Inserting $1 module\n\n"
 insmod $1
 if [ $? != 0 ]; then
  printf "Insmod $1 failed\n"
  return;
 fi

 if [ $2 -eq 1 ]; then
  # online all non-boot CPUs
  for_each_non_boot_cpu online_cpu
  printf "\n"
 fi

 # run basic tests
 cpufreq_basic_tests

 # remove module
 printf "Removing $1 module\n\n"
 rmmod $1
 if [ $? != 0 ]; then
  printf "rmmod $1 failed\n"
  return;
 fi

 # There shouldn't be any cpufreq directories now.
 for_each_cpu cpu_should_not_have_cpufreq_directory
 printf "\n"
}

# $1: cpufreq-driver module to insert
module_driver_test()
{
 printf "** Test: Running ${FUNCNAME[0]} **\n\n"

 # check if module is present or not
 ls $1 > /dev/null
 if [ $? != 0 ]; then
  printf "$1: not present in `pwd` folder\n"
  return;
 fi

 # test basic module tests
 test_basic_insmod_rmmod $1

 # Do simple module test
 module_driver_test_single $1 0

 # Remove CPUs before inserting module and then bring them back
 module_driver_test_single $1 1
 printf "\n"
}

# find governor name based on governor module name
# $1: governor module name
find_gov_name()
{
 if [ $1 = "cpufreq_ondemand.ko" ]; then
  printf "ondemand"
 elif [ $1 = "cpufreq_conservative.ko" ]; then
  printf "conservative"
 elif [ $1 = "cpufreq_userspace.ko" ]; then
  printf "userspace"
 elif [ $1 = "cpufreq_performance.ko" ]; then
  printf "performance"
 elif [ $1 = "cpufreq_powersave.ko" ]; then
  printf "powersave"
 elif [ $1 = "cpufreq_schedutil.ko" ]; then
  printf "schedutil"
 fi
}

# $1: governor string, $2: governor module, $3: policy
# example: module_governor_test_single "ondemand" "cpufreq_ondemand.ko" 2
module_governor_test_single()
{
 printf "** Test: Running ${FUNCNAME[0]} for $3 **\n\n"

 backup_governor $3

 # switch to new governor
 printf "Switch from $CUR_GOV to $1\n"
 switch_show_governor $3 $1

 # try removing module, it should fail as governor is used
 printf "Removing $2 module\n\n"
 rmmod $2
 if [ $? = 0 ]; then
  printf "WARN: rmmod $2 succeeded even if governor is used\n"
  insmod $2
 else
  printf "Pass: unable to remove $2 while it is being used\n\n"
 fi

 # switch back to old governor
 printf "Switchback to $CUR_GOV from $1\n"
 restore_governor $3
 printf "\n"
}

# Insert cpufreq governor module and perform basic tests
# $1: cpufreq-governor module to insert
module_governor_test()
{
 printf "** Test: Running ${FUNCNAME[0]} **\n\n"

 # check if module is present or not
 ls $1 > /dev/null
 if [ $? != 0 ]; then
  printf "$1: not present in `pwd` folder\n"
  return;
 fi

 # test basic module tests
 test_basic_insmod_rmmod $1

 # insert module
 printf "Inserting $1 module\n\n"
 insmod $1
 if [ $? != 0 ]; then
  printf "Insmod $1 failed\n"
  return;
 fi

 # switch to new governor for each cpu
 for_each_policy module_governor_test_single $(find_gov_name $1) $1

 # remove module
 printf "Removing $1 module\n\n"
 rmmod $1
 if [ $? != 0 ]; then
  printf "rmmod $1 failed\n"
  return;
 fi
 printf "\n"
}

# test modules: driver and governor
# $1: driver module, $2: governor module
module_test()
{
 printf "** Test: Running ${FUNCNAME[0]} **\n\n"

 # check if modules are present or not
 ls $1 $2 > /dev/null
 if [ $? != 0 ]; then
  printf "$1 or $2: is not present in `pwd` folder\n"
  return;
 fi

 # TEST1: Insert gov after driver
 # insert driver module
 printf "Inserting $1 module\n\n"
 insmod $1
 if [ $? != 0 ]; then
  printf "Insmod $1 failed\n"
  return;
 fi

 # run governor tests
 module_governor_test $2

 # remove driver module
 printf "Removing $1 module\n\n"
 rmmod $1
 if [ $? != 0 ]; then
  printf "rmmod $1 failed\n"
  return;
 fi

 # TEST2: Insert driver after governor
 # insert governor module
 printf "Inserting $2 module\n\n"
 insmod $2
 if [ $? != 0 ]; then
  printf "Insmod $2 failed\n"
  return;
 fi

 # run governor tests
 module_driver_test $1

 # remove driver module
 printf "Removing $2 module\n\n"
 rmmod $2
 if [ $? != 0 ]; then
  printf "rmmod $2 failed\n"
  return;
 fi
}