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-rw-r--r--tools/pci/pcitest.c10
-rw-r--r--tools/testing/selftests/Makefile1
-rw-r--r--tools/testing/selftests/pcie_bwctrl/Makefile2
-rwxr-xr-xtools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh122
-rwxr-xr-xtools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh67
5 files changed, 197 insertions, 5 deletions
diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index 470258009ddc..7b530d838d40 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -95,7 +95,7 @@ static int run_test(struct pci_test *test)
if (test->msinum > 0 && test->msinum <= 32) {
ret = ioctl(fd, PCITEST_MSI, test->msinum);
- fprintf(stdout, "MSI%d:\t\t", test->msinum);
+ fprintf(stdout, "MSI%u:\t\t", test->msinum);
if (ret < 0)
fprintf(stdout, "TEST FAILED\n");
else
@@ -104,7 +104,7 @@ static int run_test(struct pci_test *test)
if (test->msixnum > 0 && test->msixnum <= 2048) {
ret = ioctl(fd, PCITEST_MSIX, test->msixnum);
- fprintf(stdout, "MSI-X%d:\t\t", test->msixnum);
+ fprintf(stdout, "MSI-X%u:\t\t", test->msixnum);
if (ret < 0)
fprintf(stdout, "TEST FAILED\n");
else
@@ -116,7 +116,7 @@ static int run_test(struct pci_test *test)
if (test->use_dma)
param.flags = PCITEST_FLAGS_USE_DMA;
ret = ioctl(fd, PCITEST_WRITE, &param);
- fprintf(stdout, "WRITE (%7ld bytes):\t\t", test->size);
+ fprintf(stdout, "WRITE (%7lu bytes):\t\t", test->size);
if (ret < 0)
fprintf(stdout, "TEST FAILED\n");
else
@@ -128,7 +128,7 @@ static int run_test(struct pci_test *test)
if (test->use_dma)
param.flags = PCITEST_FLAGS_USE_DMA;
ret = ioctl(fd, PCITEST_READ, &param);
- fprintf(stdout, "READ (%7ld bytes):\t\t", test->size);
+ fprintf(stdout, "READ (%7lu bytes):\t\t", test->size);
if (ret < 0)
fprintf(stdout, "TEST FAILED\n");
else
@@ -140,7 +140,7 @@ static int run_test(struct pci_test *test)
if (test->use_dma)
param.flags = PCITEST_FLAGS_USE_DMA;
ret = ioctl(fd, PCITEST_COPY, &param);
- fprintf(stdout, "COPY (%7ld bytes):\t\t", test->size);
+ fprintf(stdout, "COPY (%7lu bytes):\t\t", test->size);
if (ret < 0)
fprintf(stdout, "TEST FAILED\n");
else
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 3f06b6233ae4..2401e973c359 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -72,6 +72,7 @@ TARGETS += net/packetdrill
TARGETS += net/rds
TARGETS += net/tcp_ao
TARGETS += nsfs
+TARGETS += pcie_bwctrl
TARGETS += perf_events
TARGETS += pidfd
TARGETS += pid_namespace
diff --git a/tools/testing/selftests/pcie_bwctrl/Makefile b/tools/testing/selftests/pcie_bwctrl/Makefile
new file mode 100644
index 000000000000..3e84e26341d1
--- /dev/null
+++ b/tools/testing/selftests/pcie_bwctrl/Makefile
@@ -0,0 +1,2 @@
+TEST_PROGS = set_pcie_cooling_state.sh
+include ../lib.mk
diff --git a/tools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh b/tools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh
new file mode 100755
index 000000000000..9df606552af3
--- /dev/null
+++ b/tools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh
@@ -0,0 +1,122 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+SYSFS=
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+retval=0
+skipmsg="skip all tests:"
+
+PCIEPORTTYPE="PCIe_Port_Link_Speed"
+
+prerequisite()
+{
+ local ports
+
+ if [ $UID != 0 ]; then
+ echo $skipmsg must be run as root >&2
+ exit $ksft_skip
+ fi
+
+ SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+ if [ ! -d "$SYSFS" ]; then
+ echo $skipmsg sysfs is not mounted >&2
+ exit $ksft_skip
+ fi
+
+ if ! ls $SYSFS/class/thermal/cooling_device* > /dev/null 2>&1; then
+ echo $skipmsg thermal cooling devices missing >&2
+ exit $ksft_skip
+ fi
+
+ ports=`grep -e "^$PCIEPORTTYPE" $SYSFS/class/thermal/cooling_device*/type | wc -l`
+ if [ $ports -eq 0 ]; then
+ echo $skipmsg pcie cooling devices missing >&2
+ exit $ksft_skip
+ fi
+}
+
+testport=
+find_pcie_port()
+{
+ local patt="$1"
+ local pcieports
+ local max
+ local cur
+ local delta
+ local bestdelta=-1
+
+ pcieports=`grep -l -F -e "$patt" /sys/class/thermal/cooling_device*/type`
+ if [ -z "$pcieports" ]; then
+ return
+ fi
+ pcieports=${pcieports//\/type/}
+ # Find the port with the highest PCIe Link Speed
+ for port in $pcieports; do
+ max=`cat $port/max_state`
+ cur=`cat $port/cur_state`
+ delta=$((max-cur))
+ if [ $delta -gt $bestdelta ]; then
+ testport="$port"
+ bestdelta=$delta
+ fi
+ done
+}
+
+sysfspcidev=
+find_sysfs_pci_dev()
+{
+ local typefile="$1/type"
+ local pcidir
+
+ pcidir="$SYSFS/bus/pci/devices/`sed -e "s|^${PCIEPORTTYPE}_||g" $typefile`"
+
+ if [ -r "$pcidir/current_link_speed" ]; then
+ sysfspcidev="$pcidir/current_link_speed"
+ fi
+}
+
+usage()
+{
+ echo "Usage $0 [ -d dev ]"
+ echo -e "\t-d: PCIe port BDF string (e.g., 0000:00:04.0)"
+}
+
+pattern="$PCIEPORTTYPE"
+parse_arguments()
+{
+ while getopts d:h opt; do
+ case $opt in
+ h)
+ usage "$0"
+ exit 0
+ ;;
+ d)
+ pattern="$PCIEPORTTYPE_$OPTARG"
+ ;;
+ *)
+ usage "$0"
+ exit 0
+ ;;
+ esac
+ done
+}
+
+parse_arguments "$@"
+prerequisite
+find_pcie_port "$pattern"
+if [ -z "$testport" ]; then
+ echo $skipmsg "pcie cooling device not found from sysfs" >&2
+ exit $ksft_skip
+fi
+find_sysfs_pci_dev "$testport"
+if [ -z "$sysfspcidev" ]; then
+ echo $skipmsg "PCIe port device not found from sysfs" >&2
+ exit $ksft_skip
+fi
+
+./set_pcie_speed.sh "$testport" "$sysfspcidev"
+retval=$?
+
+exit $retval
diff --git a/tools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh b/tools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh
new file mode 100755
index 000000000000..584596949312
--- /dev/null
+++ b/tools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+set -e
+
+TESTNAME=set_pcie_speed
+
+declare -a PCIELINKSPEED=(
+ "2.5 GT/s PCIe"
+ "5.0 GT/s PCIe"
+ "8.0 GT/s PCIe"
+ "16.0 GT/s PCIe"
+ "32.0 GT/s PCIe"
+ "64.0 GT/s PCIe"
+)
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+retval=0
+
+coolingdev="$1"
+statefile="$coolingdev/cur_state"
+maxfile="$coolingdev/max_state"
+linkspeedfile="$2"
+
+oldstate=`cat $statefile`
+maxstate=`cat $maxfile`
+
+set_state()
+{
+ local state=$1
+ local linkspeed
+ local expected_linkspeed
+
+ echo $state > $statefile
+
+ sleep 1
+
+ linkspeed="`cat $linkspeedfile`"
+ expected_linkspeed=$((maxstate-state))
+ expected_str="${PCIELINKSPEED[$expected_linkspeed]}"
+ if [ ! "${expected_str}" = "${linkspeed}" ]; then
+ echo "$TESTNAME failed: expected: ${expected_str}; got ${linkspeed}"
+ retval=1
+ fi
+}
+
+cleanup_skip ()
+{
+ set_state $oldstate
+ exit $ksft_skip
+}
+
+trap cleanup_skip EXIT
+
+echo "$TESTNAME: testing states $maxstate .. $oldstate with $coolingdev"
+for i in $(seq $maxstate -1 $oldstate); do
+ set_state "$i"
+done
+
+trap EXIT
+if [ $retval -eq 0 ]; then
+ echo "$TESTNAME [PASS]"
+else
+ echo "$TESTNAME [FAIL]"
+fi
+exit $retval
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 14:40:19 +0100