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release-0.18
intel-device-plugins-for-ku.../cmd/fpga_plugin/opae_test.go
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// Copyright 2018 Intel Corporation. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"io/ioutil"
"os"
"path"
"reflect"
"strings"
"testing"
dpapi "github.com/intel/intel-device-plugins-for-kubernetes/pkg/deviceplugin"
pluginapi "k8s.io/kubelet/pkg/apis/deviceplugin/v1beta1"
)
func TestNewDevicePluginOPAE(t *testing.T) {
tcases := []struct {
mode string
expectedErr bool
}{
{
mode: afMode,
},
{
mode: regionMode,
},
{
mode: regionDevelMode,
},
{
mode: "unparsable",
expectedErr: true,
},
}
for _, tcase := range tcases {
t.Run(tcase.mode, func(t *testing.T) {
_, err := newDevicePluginOPAE("", "", tcase.mode)
if tcase.expectedErr && err == nil {
t.Error("Unexpected success")
}
if !tcase.expectedErr && err != nil {
t.Errorf("Unexpected error: %+v", err)
}
})
}
}
// getDevices returns static list of device structs for testing purposes.
func getDevicesOPAE() []device {
return []device{
{
name: "intel-fpga-dev.0",
regions: []region{
{
id: "intel-fpga-fme.0",
interfaceID: "ce48969398f05f33946d560708be108a",
devNode: "/dev/intel-fpga-fme.0",
afus: []afu{
{
id: "intel-fpga-port.0",
afuID: "d8424dc4a4a3c413f89e433683f9040b",
devNode: "/dev/intel-fpga-port.0",
},
},
},
},
},
{
name: "intel-fpga-dev.1",
regions: []region{
{
id: "intel-fpga-fme.1",
interfaceID: "ce48969398f05f33946d560708be108a",
devNode: "/dev/intel-fpga-fme.1",
afus: []afu{
{
id: "intel-fpga-port.1",
afuID: "d8424dc4a4a3c413f89e433683f9040b",
devNode: "/dev/intel-fpga-port.1",
},
},
},
},
},
{
name: "intel-fpga-dev.2",
regions: []region{
{
id: "intel-fpga-fme.2",
interfaceID: unhealthyInterfaceID,
devNode: "/dev/intel-fpga-fme.2",
afus: []afu{
{
id: "intel-fpga-port.2",
afuID: unhealthyAfuID,
devNode: "/dev/intel-fpga-port.2",
},
},
},
},
},
}
}
func TestGetRegionDevelTreeOPAE(t *testing.T) {
expected := dpapi.NewDeviceTree()
nodes := []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.0",
ContainerPath: "/dev/intel-fpga-port.0",
Permissions: "rw",
},
{
HostPath: "/dev/intel-fpga-fme.0",
ContainerPath: "/dev/intel-fpga-fme.0",
Permissions: "rw",
},
}
expected.AddDevice(regionMode+"-ce48969398f05f33946d560708be108a", "intel-fpga-fme.0", dpapi.NewDeviceInfo(pluginapi.Healthy, nodes, nil, nil))
nodes = []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.1",
ContainerPath: "/dev/intel-fpga-port.1",
Permissions: "rw",
},
{
HostPath: "/dev/intel-fpga-fme.1",
ContainerPath: "/dev/intel-fpga-fme.1",
Permissions: "rw",
},
}
expected.AddDevice(regionMode+"-ce48969398f05f33946d560708be108a", "intel-fpga-fme.1", dpapi.NewDeviceInfo(pluginapi.Healthy, nodes, nil, nil))
nodes = []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.2",
ContainerPath: "/dev/intel-fpga-port.2",
Permissions: "rw",
},
{
HostPath: "/dev/intel-fpga-fme.2",
ContainerPath: "/dev/intel-fpga-fme.2",
Permissions: "rw",
},
}
expected.AddDevice(regionMode+"-"+unhealthyInterfaceID, "intel-fpga-fme.2", dpapi.NewDeviceInfo(pluginapi.Unhealthy, nodes, nil, nil))
result := getRegionDevelTree(getDevicesOPAE())
if !reflect.DeepEqual(result, expected) {
t.Error("Got unexpected result: ", result)
}
}
func TestGetRegionTreeOPAE(t *testing.T) {
expected := dpapi.NewDeviceTree()
nodes := []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.0",
ContainerPath: "/dev/intel-fpga-port.0",
Permissions: "rw",
},
}
expected.AddDevice(regionMode+"-ce48969398f05f33946d560708be108a", "intel-fpga-fme.0", dpapi.NewDeviceInfo(pluginapi.Healthy, nodes, nil, nil))
nodes = []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.1",
ContainerPath: "/dev/intel-fpga-port.1",
Permissions: "rw",
},
}
expected.AddDevice(regionMode+"-ce48969398f05f33946d560708be108a", "intel-fpga-fme.1", dpapi.NewDeviceInfo(pluginapi.Healthy, nodes, nil, nil))
nodes = []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.2",
ContainerPath: "/dev/intel-fpga-port.2",
Permissions: "rw",
},
}
expected.AddDevice(regionMode+"-"+unhealthyInterfaceID, "intel-fpga-fme.2", dpapi.NewDeviceInfo(pluginapi.Unhealthy, nodes, nil, nil))
result := getRegionTree(getDevicesOPAE())
if !reflect.DeepEqual(result, expected) {
t.Error("Got unexpected result: ", result)
}
}
func TestGetAfuTreeOPAE(t *testing.T) {
expected := dpapi.NewDeviceTree()
nodes := []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.0",
ContainerPath: "/dev/intel-fpga-port.0",
Permissions: "rw",
},
}
expected.AddDevice("af-ce4.d84.zkiWk5jwXzOUbVYHCL4QithCTcSko8QT-J5DNoP5BAs", "intel-fpga-port.0", dpapi.NewDeviceInfo(pluginapi.Healthy, nodes, nil, nil))
nodes = []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.1",
ContainerPath: "/dev/intel-fpga-port.1",
Permissions: "rw",
},
}
expected.AddDevice("af-ce4.d84.zkiWk5jwXzOUbVYHCL4QithCTcSko8QT-J5DNoP5BAs", "intel-fpga-port.1", dpapi.NewDeviceInfo(pluginapi.Healthy, nodes, nil, nil))
nodes = []pluginapi.DeviceSpec{
{
HostPath: "/dev/intel-fpga-port.2",
ContainerPath: "/dev/intel-fpga-port.2",
Permissions: "rw",
},
}
expected.AddDevice("af-fff.fff.__________________________________________8", "intel-fpga-port.2", dpapi.NewDeviceInfo(pluginapi.Unhealthy, nodes, nil, nil))
result := getAfuTree(getDevicesOPAE())
if !reflect.DeepEqual(result, expected) {
t.Error("Got unexpected result: ", result)
}
}
func TestScanFPGAsOPAE(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "TestScanFPGAsOPAE")
if err != nil {
t.Fatalf("can't create temporary directory: %+v", err)
}
sysfs := path.Join(tmpdir, "sys", "class", "fpga")
devfs := path.Join(tmpdir, "dev")
tcases := []struct {
name string
devfsdirs []string
sysfsdirs []string
sysfsfiles map[string][]byte
errorContains string
expectedDevTree map[string]map[string]dpapi.DeviceInfo
mode string
}{
{
name: "No sysfs folder exists",
mode: afMode,
},
{
name: "FPGA device without FME and ports",
mode: afMode,
sysfsdirs: []string{"intel-fpga-dev.0", "incorrect-file-name"},
errorContains: "No regions found",
},
{
name: "AFU without ID",
mode: afMode,
sysfsdirs: []string{"intel-fpga-dev.0/intel-fpga-port.0"},
errorContains: "afu_id: no such file or directory",
},
{
name: "No device node for detected AFU",
mode: afMode,
sysfsdirs: []string{"intel-fpga-dev.0/intel-fpga-port.0"},
sysfsfiles: map[string][]byte{
"intel-fpga-dev.0/intel-fpga-port.0/afu_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
},
errorContains: "/dev/intel-fpga-port.0: no such file or directory",
},
{
name: "AFU without corresponding FME",
mode: afMode,
sysfsdirs: []string{"intel-fpga-dev.0/intel-fpga-port.0"},
devfsdirs: []string{"intel-fpga-port.0"},
sysfsfiles: map[string][]byte{
"intel-fpga-dev.0/intel-fpga-port.0/afu_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
},
errorContains: "intel-fpga-dev.0: AFU without corresponding FME found",
},
{
name: "More than one FME per FPGA device",
mode: afMode,
sysfsdirs: []string{
"intel-fpga-dev.0/intel-fpga-fme.0/pr",
"intel-fpga-dev.0/intel-fpga-fme.1/pr",
},
sysfsfiles: map[string][]byte{
"intel-fpga-dev.0/intel-fpga-fme.0/pr/interface_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
"intel-fpga-dev.0/intel-fpga-fme.1/pr/interface_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
},
devfsdirs: []string{
"intel-fpga-fme.0",
"intel-fpga-fme.1",
},
errorContains: "Detected more than one FPGA region",
},
{
name: "FME without interface ID",
mode: afMode,
sysfsdirs: []string{"intel-fpga-dev.0/intel-fpga-fme.0"},
errorContains: "interface_id: no such file or directory",
},
{
name: "No device node for detected region",
mode: afMode,
sysfsdirs: []string{"intel-fpga-dev.0/intel-fpga-fme.0/pr"},
sysfsfiles: map[string][]byte{
"intel-fpga-dev.0/intel-fpga-fme.0/pr/interface_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
},
errorContains: "/dev/intel-fpga-fme.0: no such file or directory",
},
{
name: "No errors expected in af mode",
mode: afMode,
sysfsdirs: []string{
"intel-fpga-dev.0/intel-fpga-port.0",
"intel-fpga-dev.0/intel-fpga-fme.0/pr",
"intel-fpga-dev.1/intel-fpga-port.1",
"intel-fpga-dev.1/intel-fpga-fme.1/pr",
},
sysfsfiles: map[string][]byte{
"intel-fpga-dev.0/intel-fpga-port.0/afu_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
"intel-fpga-dev.1/intel-fpga-port.1/afu_id": []byte("d8424dc4a4a3c413f89e433683f9040b\n"),
"intel-fpga-dev.0/intel-fpga-fme.0/pr/interface_id": []byte("ce48969398f05f33946d560708be108a\n"),
"intel-fpga-dev.1/intel-fpga-fme.1/pr/interface_id": []byte("ce48969398f05f33946d560708be108a\n"),
},
devfsdirs: []string{
"intel-fpga-port.0", "intel-fpga-fme.0",
"intel-fpga-port.1", "intel-fpga-fme.1",
},
},
{
name: "No errors expected in region mode",
mode: regionMode,
sysfsdirs: []string{
"intel-fpga-dev.0/intel-fpga-port.0",
"intel-fpga-dev.0/intel-fpga-fme.0/pr",
"intel-fpga-dev.1/intel-fpga-port.1",
"intel-fpga-dev.1/intel-fpga-fme.1/pr",
},
sysfsfiles: map[string][]byte{
"intel-fpga-dev.0/intel-fpga-fme.0/pr/interface_id": []byte("ce48969398f05f33946d560708be108a\n"),
"intel-fpga-dev.1/intel-fpga-fme.1/pr/interface_id": []byte("ce48969398f05f33946d560708be108a\n"),
},
devfsdirs: []string{
"intel-fpga-port.0", "intel-fpga-fme.0",
"intel-fpga-port.1", "intel-fpga-fme.1",
},
},
}
for _, tcase := range tcases {
t.Run(tcase.name, func(t *testing.T) {
err := createTestDirs(devfs, sysfs, tcase.devfsdirs, tcase.sysfsdirs, tcase.sysfsfiles)
if err != nil {
t.Fatalf("%+v", err)
}
plugin, err := newDevicePluginOPAE(sysfs, devfs, tcase.mode)
plugin.getDevTree = func(devices []device) dpapi.DeviceTree {
return dpapi.NewDeviceTree()
}
if err != nil {
t.Fatalf("%+v", err)
}
_, err = plugin.scanFPGAs()
if tcase.errorContains != "" {
if err == nil || !strings.Contains(err.Error(), tcase.errorContains) {
t.Errorf("expected error '%s', but got '%v'", tcase.errorContains, err)
}
} else if err != nil {
t.Errorf("expected no error, but got '%+v'", err)
}
err = os.RemoveAll(tmpdir)
if err != nil {
t.Fatal(err)
}
})
}
}
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