selftests: ifs: verify IFS scan test functionality
Two selftests are added to verify IFS scan test feature: 1. Perform IFS scan test once on each CPU using all the available image files. 2. Perform IFS scan test with the default image on a random cpu for 3 rounds. Reviewed-by: Jithu Joseph <jithu.joseph@intel.com> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Co-developed-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Pengfei Xu <pengfei.xu@intel.com> Acked-by: Jithu Joseph <jithu.joseph@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Pengfei Xu
Shuah Khan
parent
20cef3039d
commit
3170f7acfb
@ -10,16 +10,25 @@ readonly KSFT_FAIL=1
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readonly KSFT_XFAIL=2
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readonly KSFT_SKIP=4
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readonly CPU_SYSFS="/sys/devices/system/cpu"
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readonly CPU_OFFLINE_SYSFS="${CPU_SYSFS}/offline"
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readonly IMG_PATH="/lib/firmware/intel/ifs_0"
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readonly IFS_SCAN_MODE="0"
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readonly IFS_ARRAY_BIST_SCAN_MODE="1"
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readonly IFS_PATH="/sys/devices/virtual/misc/intel_ifs"
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readonly IFS_SCAN_SYSFS_PATH="${IFS_PATH}_${IFS_SCAN_MODE}"
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readonly RUN_TEST="run_test"
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readonly STATUS="status"
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readonly DETAILS="details"
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readonly STATUS_PASS="pass"
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readonly PASS="PASS"
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readonly FAIL="FAIL"
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readonly INFO="INFO"
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readonly XFAIL="XFAIL"
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readonly SKIP="SKIP"
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readonly IFS_NAME="intel_ifs"
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readonly ALL="all"
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readonly SIBLINGS="siblings"
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# Matches arch/x86/include/asm/intel-family.h and
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# drivers/platform/x86/intel/ifs/core.c requirement as follows
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@ -28,6 +37,7 @@ readonly EMERALDRAPIDS_X="cf"
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readonly INTEL_FAM6="06"
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LOOP_TIMES=3
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FML=""
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MODEL=""
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STEPPING=""
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@ -36,11 +46,13 @@ TRUE="true"
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FALSE="false"
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RESULT=$KSFT_PASS
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IMAGE_NAME=""
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export INTERVAL_TIME=1
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INTERVAL_TIME=1
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OFFLINE_CPUS=""
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# For IFS cleanup tags
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ORIGIN_IFS_LOADED=""
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IFS_IMAGE_NEED_RESTORE=$FALSE
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IFS_LOG="/tmp/ifs_logs.$$"
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RANDOM_CPU=""
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DEFAULT_IMG_ID=""
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append_log()
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@ -48,6 +60,35 @@ append_log()
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echo -e "$1" | tee -a "$IFS_LOG"
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}
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online_offline_cpu_list()
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{
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local on_off=$1
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local target_cpus=$2
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local cpu=""
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local cpu_start=""
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local cpu_end=""
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local i=""
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if [[ -n "$target_cpus" ]]; then
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for cpu in $(echo "$target_cpus" | tr ',' ' '); do
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if [[ "$cpu" == *"-"* ]]; then
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cpu_start=""
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cpu_end=""
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i=""
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cpu_start=$(echo "$cpu" | cut -d "-" -f 1)
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cpu_end=$(echo "$cpu" | cut -d "-" -f 2)
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for((i=cpu_start;i<=cpu_end;i++)); do
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append_log "[$INFO] echo $on_off > \
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${CPU_SYSFS}/cpu${i}/online"
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echo "$on_off" > "$CPU_SYSFS"/cpu"$i"/online
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done
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else
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set_target_cpu "$on_off" "$cpu"
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fi
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done
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fi
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}
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ifs_scan_result_summary()
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{
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local failed_info pass_num skip_num fail_num
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@ -80,6 +121,9 @@ ifs_cleanup()
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mv -f "$IMG_PATH"/"$IMAGE_NAME"_origin "$IMG_PATH"/"$IMAGE_NAME"
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}
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# Restore the CPUs to the state before testing
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[[ -z "$OFFLINE_CPUS" ]] || online_offline_cpu_list "0" "$OFFLINE_CPUS"
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lsmod | grep -q "$IFS_NAME" && [[ "$ORIGIN_IFS_LOADED" == "$FALSE" ]] && {
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echo "[$INFO] modprobe -r $IFS_NAME"
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modprobe -r "$IFS_NAME"
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@ -122,6 +166,23 @@ test_exit()
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ifs_cleanup
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}
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online_all_cpus()
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{
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local off_cpus=""
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OFFLINE_CPUS=$(cat "$CPU_OFFLINE_SYSFS")
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online_offline_cpu_list "1" "$OFFLINE_CPUS"
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off_cpus=$(cat "$CPU_OFFLINE_SYSFS")
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if [[ -z "$off_cpus" ]]; then
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append_log "[$INFO] All CPUs are online."
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else
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append_log "[$XFAIL] There is offline cpu:$off_cpus after online all cpu!"
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RESULT=$KSFT_XFAIL
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ifs_cleanup
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fi
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}
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get_cpu_fms()
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{
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FML=$(grep -m 1 "family" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')
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@ -268,10 +329,135 @@ test_bad_and_origin_ifs_image()
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append_log "[$INFO] Loading invalid IFS image and then loading initial image passed.\n"
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}
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ifs_test_cpu()
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{
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local ifs_mode=$1
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local cpu_num=$2
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local image_id status details ret result result_info
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echo "$cpu_num" > "$IFS_PATH"_"$ifs_mode"/"$RUN_TEST"
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ret=$?
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status=$(cat "${IFS_PATH}_${ifs_mode}/${STATUS}")
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details=$(cat "${IFS_PATH}_${ifs_mode}/${DETAILS}")
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if [[ "$ret" -eq 0 && "$status" == "$STATUS_PASS" ]]; then
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result="$PASS"
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else
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result="$FAIL"
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fi
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cpu_num=$(cat "${CPU_SYSFS}/cpu${cpu_num}/topology/thread_siblings_list")
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# There is no image file for IFS ARRAY BIST scan
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if [[ -e "${IFS_PATH}_${ifs_mode}/current_batch" ]]; then
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image_id=$(cat "${IFS_PATH}_${ifs_mode}/current_batch")
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result_info=$(printf "[%s] ifs_%1d cpu(s):%s, current_batch:0x%02x, \
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ret:%2d, status:%s, details:0x%016x" \
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"$result" "$ifs_mode" "$cpu_num" "$image_id" "$ret" \
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"$status" "$details")
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else
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result_info=$(printf "[%s] ifs_%1d cpu(s):%s, ret:%2d, status:%s, details:0x%016x" \
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"$result" "$ifs_mode" "$cpu_num" "$ret" "$status" "$details")
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fi
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append_log "$result_info"
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}
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ifs_test_cpus()
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{
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local cpus_type=$1
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local ifs_mode=$2
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local image_id=$3
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local cpu_max_num=""
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local cpu_num=""
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case "$cpus_type" in
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"$ALL")
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cpu_max_num=$(($(nproc) - 1))
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cpus=$(seq 0 $cpu_max_num)
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;;
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"$SIBLINGS")
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cpus=$(cat ${CPU_SYSFS}/cpu*/topology/thread_siblings_list \
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| sed -e 's/,.*//' \
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| sed -e 's/-.*//' \
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| sort -n \
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| uniq)
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;;
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*)
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test_exit "Invalid cpus_type:$cpus_type" "$KSFT_XFAIL"
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;;
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esac
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for cpu_num in $cpus; do
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ifs_test_cpu "$ifs_mode" "$cpu_num"
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done
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if [[ -z "$image_id" ]]; then
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append_log "[$INFO] ifs_$ifs_mode test $cpus_type cpus completed\n"
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else
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append_log "[$INFO] ifs_$ifs_mode $cpus_type cpus with $CPU_FMS-$image_id.scan \
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completed\n"
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fi
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}
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test_ifs_same_cpu_loop()
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{
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local ifs_mode=$1
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local cpu_num=$2
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local loop_times=$3
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append_log "[$INFO] Test ifs mode $ifs_mode on CPU:$cpu_num for $loop_times rounds:"
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[[ "$ifs_mode" == "$IFS_SCAN_MODE" ]] && {
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load_image "$DEFAULT_IMG_ID" || return $?
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}
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for (( i=1; i<=loop_times; i++ )); do
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append_log "[$INFO] Loop iteration: $i in total of $loop_times"
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# Only IFS scan needs the interval time
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if [[ "$ifs_mode" == "$IFS_SCAN_MODE" ]]; then
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do_cmd "sleep $INTERVAL_TIME"
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elif [[ "$ifs_mode" == "$IFS_ARRAY_BIST_SCAN_MODE" ]]; then
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true
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else
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test_exit "Invalid ifs_mode:$ifs_mode" "$KSFT_XFAIL"
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fi
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ifs_test_cpu "$ifs_mode" "$cpu_num"
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done
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append_log "[$INFO] $loop_times rounds of ifs_$ifs_mode test on CPU:$cpu_num completed.\n"
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}
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test_ifs_scan_available_imgs()
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{
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local image_ids=""
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local image_id=""
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append_log "[$INFO] Test ifs scan with available images:"
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image_ids=$(find "$IMG_PATH" -maxdepth 1 -name "${CPU_FMS}-[0-9a-fA-F][0-9a-fA-F].scan" \
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2>/dev/null \
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| sort \
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| awk -F "-" '{print $NF}' \
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| cut -d "." -f 1)
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for image_id in $image_ids; do
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load_image "$image_id" || return $?
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ifs_test_cpus "$SIBLINGS" "$IFS_SCAN_MODE" "$image_id"
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# IFS scan requires time interval for the scan on the same CPU
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do_cmd "sleep $INTERVAL_TIME"
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done
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}
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prepare_ifs_test_env()
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{
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local max_cpu=""
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check_cpu_ifs_support_interval_time
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online_all_cpus
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max_cpu=$(($(nproc) - 1))
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RANDOM_CPU=$(shuf -i 0-$max_cpu -n 1)
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DEFAULT_IMG_ID=$(find $IMG_PATH -maxdepth 1 -name "${CPU_FMS}-[0-9a-fA-F][0-9a-fA-F].scan" \
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2>/dev/null \
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| sort \
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@ -290,6 +476,8 @@ test_ifs()
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append_log "[$SKIP] No proper ${IMG_PATH}/${CPU_FMS}-*.scan, skip ifs_0 scan"
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else
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test_bad_and_origin_ifs_image "$DEFAULT_IMG_ID"
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test_ifs_scan_available_imgs
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test_ifs_same_cpu_loop "$IFS_SCAN_MODE" "$RANDOM_CPU" "$LOOP_TIMES"
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fi
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}
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