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dpdkdrv_test.go
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dpdkdrv_test.go
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// Copyright 2018-2022 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 dpdkdrv
import (
"flag"
"fmt"
"os"
"path"
"reflect"
"testing"
"github.com/pkg/errors"
pluginapi "k8s.io/kubelet/pkg/apis/deviceplugin/v1beta1"
dpapi "github.com/intel/intel-device-plugins-for-kubernetes/pkg/deviceplugin"
)
func init() {
_ = flag.Set("v", "4") //Enable debug output
}
func createTestFiles(prefix string, dirs []string, files map[string][]byte, symlinks map[string]string) error {
for _, dir := range dirs {
err := os.MkdirAll(path.Join(prefix, dir), 0750)
if err != nil {
return errors.Wrap(err, "Failed to create fake device directory")
}
}
for filename, body := range files {
err := os.WriteFile(path.Join(prefix, filename), body, 0600)
if err != nil {
return errors.Wrap(err, "Failed to create fake vendor file")
}
}
for link, target := range symlinks {
err := os.MkdirAll(path.Join(prefix, target), 0750)
if err != nil {
return errors.Wrap(err, "Failed to create fake symlink target directory")
}
err = os.Symlink(path.Join(prefix, target), path.Join(prefix, link))
if err != nil {
return errors.Wrap(err, "Failed to create fake symlink")
}
}
return nil
}
func TestNewDevicePlugin(t *testing.T) {
tcases := []struct {
name string
dpdkDriver string
kernelVfDrivers string
expectedErr bool
}{
{
name: "Wrong dpdkDriver",
dpdkDriver: "uio",
kernelVfDrivers: "c6xxvf",
expectedErr: true,
},
{
name: "Correct dpdkDriver, wrong kernelVfDrivers",
dpdkDriver: "vfio-pci",
kernelVfDrivers: "c6xxxvf",
expectedErr: true,
},
{
name: "Correct dpdkDriver, kernelVfDrivers separated wrong",
dpdkDriver: "vfio-pci",
kernelVfDrivers: "c6xxvf:d15xxvf",
expectedErr: true,
},
{
name: "No errors",
dpdkDriver: "vfio-pci",
kernelVfDrivers: "c6xxvf,d15xxvf",
expectedErr: false,
},
}
for _, tt := range tcases {
t.Run(tt.name, func(t *testing.T) {
_, err := NewDevicePlugin(1, tt.kernelVfDrivers, tt.dpdkDriver, "")
if tt.expectedErr && err == nil {
t.Errorf("Test case '%s': expected error", tt.name)
}
if !tt.expectedErr && err != nil {
t.Errorf("Test case '%s': expected success", tt.name)
}
})
}
}
// fakeNotifier implements Notifier interface.
type fakeNotifier struct {
scanDone chan bool
tree dpapi.DeviceTree
}
// Notify stops plugin Scan.
func (n *fakeNotifier) Notify(newDeviceTree dpapi.DeviceTree) {
n.tree = newDeviceTree
n.scanDone <- true
}
func TestGetPreferredAllocation(t *testing.T) {
rqt := &pluginapi.PreferredAllocationRequest{
ContainerRequests: []*pluginapi.ContainerPreferredAllocationRequest{
{
AvailableDeviceIDs: []string{"0000:03:00.4", "0000:04:00.1", "0000:05:00.3", "0000:05:00.4", "0000:05:00.1", "0000:04:00.0", "0000:04:00.4", "0000:06:00.4", "0000:04:00.2", "0000:03:00.1", "0000:05:00.0", "0000:05:00.2", "0000:04:00.3", "0000:03:00.2", "0000:06:00.0", "0000:06:00.3", "0000:03:00.3", "0000:03:00.0", "0000:06:00.1", "0000:06:00.2"},
AllocationSize: 4,
},
},
}
plugin := newDevicePlugin("", "", 4, []string{""}, "", nonePolicy)
response, _ := plugin.GetPreferredAllocation(rqt)
if !reflect.DeepEqual(response.ContainerResponses[0].DeviceIDs, []string{"0000:03:00.4", "0000:04:00.1", "0000:05:00.3", "0000:05:00.4"}) {
t.Error("Unexpected return value for balanced preferred allocation")
}
plugin = newDevicePlugin("", "", 4, []string{""}, "", packedPolicy)
response, _ = plugin.GetPreferredAllocation(rqt)
if !reflect.DeepEqual(response.ContainerResponses[0].DeviceIDs, []string{"0000:03:00.0", "0000:03:00.1", "0000:03:00.2", "0000:03:00.3"}) {
t.Error("Unexpected return value for balanced preferred allocation")
}
plugin = newDevicePlugin("", "", 4, []string{""}, "", balancedPolicy)
response, _ = plugin.GetPreferredAllocation(rqt)
if !reflect.DeepEqual(response.ContainerResponses[0].DeviceIDs, []string{"0000:03:00.0", "0000:04:00.0", "0000:05:00.0", "0000:06:00.0"}) {
t.Error("Unexpected return value for balanced preferred allocation")
}
rqt.ContainerRequests[0].AllocationSize = 32
plugin = newDevicePlugin("", "", 4, []string{""}, "", nil)
_, err := plugin.GetPreferredAllocation(rqt)
if err == nil {
t.Error("Unexpected nil value return for err when AllocationSize is greater than the number of available device IDs")
}
}
func TestScan(t *testing.T) {
tcases := []struct {
name string
dpdkDriver string
dirs []string
files map[string][]byte
symlinks map[string]string
kernelVfDrivers []string
expectedErr bool
maxDevNum int
expectedDevNum int
expectedUnhealthyNum int
}{
{
name: "No error returned for uninitialized device plugin",
},
{
name: "igb_uio DPDKdriver with one DPDK bound device where vfdevID cannot be determined",
dpdkDriver: "igb_uio",
dirs: []string{
"sys/bus/pci/drivers/igb_uio/0000:02:01.0",
"sys/bus/pci/devices/0000:02:01.0/uio/sometestfile",
"sys/bus/pci/devices/0000:02:00.0",
},
maxDevNum: 1,
expectedDevNum: 0,
},
{
name: "igb_uio DPDKdriver with one kernel bound device, but binding fails",
dpdkDriver: "igb_uio",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedErr: true,
},
{
name: "igb_uio DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9) where reading uioDirPath for obtaining device file fails ",
dpdkDriver: "igb_uio",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/igb_uio",
"sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedErr: true,
},
{
name: "igb_uio DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9) but no uio device is found",
dpdkDriver: "igb_uio",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/igb_uio",
"sys/bus/pci/devices/0000:02:01.0/uio",
"sys/bus/pci/devices/0000:02:00.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedErr: true,
},
{
name: "igb_uio DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9) where the available devices on the system are 2 but maxNumDevices=1] ",
dpdkDriver: "igb_uio",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/igb_uio",
"sys/bus/pci/devices/0000:02:01.0/uio/sometestfile",
"sys/bus/pci/devices/0000:02:01.1/uio/sometestfile",
"sys/bus/pci/devices/0000:02:00.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
"sys/bus/pci/devices/0000:02:01.1/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn1": "sys/bus/pci/devices/0000:02:01.1",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/devices/0000:02:01.1/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "igb_uio DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9) where the available devices on the system are 2 but maxNumDevices=4] ",
dpdkDriver: "igb_uio",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/igb_uio",
"sys/bus/pci/devices/0000:02:01.0/uio/sometestfile",
"sys/bus/pci/devices/0000:02:01.1/uio/sometestfile",
"sys/bus/pci/devices/0000:02:00.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
"sys/bus/pci/devices/0000:02:01.1/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn1": "sys/bus/pci/devices/0000:02:01.1",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/devices/0000:02:01.1/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 4,
expectedDevNum: 2,
},
{
name: "vfio-pci DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9)",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfdevID is equal to qatDevId (37c9)",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "vfio-pci DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId not enabled in kernelVfDrivers",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/d15xx",
"sys/bus/pci/drivers/d15xxvf",
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x6f55"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/drivers/d15xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/d15xxvf",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
},
maxDevNum: 1,
expectedDevNum: 0,
},
{
name: "vfio-pci DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9) but symlink is broken",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0/vfio-pci/vfiotestfile",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/bus/pci/devices/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedErr: true,
},
{
name: "vfio-pci DPDKdriver with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9), running in a VM with vIOMMU",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "vfio-pci DPDKdriver in unsafe NOIOMMU mode with one kernel bound device (QAT device) where vfdevID is equal to qatDevId (37c9), running in a VM without IOMMU",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xxvf",
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/devices/0000:02:01.0",
"sys/kernel/iommu_groups/vfiotestfile",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
"sys/kernel/iommu_groups/vfiotestfile/name": []byte("vfio-noiommu"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/driver": "sys/bus/pci/drivers/c6xxvf",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfdevID is equal to qatDevId (4941), PF with dc capabilities from debugfs",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"4xxxvf"},
dirs: []string{
"sys/bus/pci/drivers/4xxx",
"sys/bus/pci/drivers/vfio-pci",
"sys/devices/pci0000:02/0000:02:00.0",
"sys/kernel/debug/qat_4xxx_0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/devices/pci0000:02/0000:02:00.0/device": []byte("0x4940"),
"sys/kernel/debug/qat_4xxx_0000:02:00.0/dev_cfg": []byte("[GENERAL]\nServicesEnabled = dc"),
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x4941"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/drivers/4xxx/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfdevID is equal to qatDevId (4941), PF with cy capabilities from sysfs",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"4xxxvf"},
dirs: []string{
"sys/bus/pci/drivers/4xxx",
"sys/bus/pci/drivers/vfio-pci",
"sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/qat",
"sys/kernel/debug/qat_4xxx_0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/devices/pci0000:02/0000:02:00.0/device": []byte("0x4940"),
"sys/devices/pci0000:02/0000:02:00.0/qat/state": []byte("up"),
"sys/devices/pci0000:02/0000:02:00.0/qat/cfg_services": []byte("sym;asym"),
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x4941"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/drivers/4xxx/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
},
maxDevNum: 1,
expectedDevNum: 1,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfdevID is equal to qatDevId (4941), two PFs with dc and cy capabilities",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"4xxxvf"},
dirs: []string{
"sys/bus/pci/drivers/4xxx",
"sys/bus/pci/drivers/vfio-pci",
"sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:03/0000:03:00.0",
"sys/kernel/debug/qat_4xxx_0000:02:00.0",
"sys/kernel/debug/qat_4xxx_0000:03:00.0",
"sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:03:01.0",
},
files: map[string][]byte{
"sys/devices/pci0000:02/0000:02:00.0/device": []byte("0x4940"),
"sys/devices/pci0000:03/0000:03:00.0/device": []byte("0x4940"),
"sys/kernel/debug/qat_4xxx_0000:02:00.0/dev_cfg": []byte("[GENERAL]\nServicesEnabled = dc"),
"sys/kernel/debug/qat_4xxx_0000:03:00.0/dev_cfg": []byte("[GENERAL]\nServicesEnabled = sym;asym"),
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x4941"),
"sys/bus/pci/devices/0000:03:01.0/device": []byte("0x4941"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:03:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile2",
"sys/bus/pci/devices/0000:02:01.0/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:03:01.0/physfn": "sys/devices/pci0000:03/0000:03:00.0",
"sys/bus/pci/drivers/4xxx/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/drivers/4xxx/0000:03:00.0": "sys/devices/pci0000:03/0000:03:00.0",
"sys/bus/pci/devices/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:03:00.0": "sys/devices/pci0000:03/0000:03:00.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/devices/pci0000:03/0000:03:00.0/virtfn0": "sys/bus/pci/devices/0000:03:01.0",
},
maxDevNum: 2,
expectedDevNum: 2,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfdevID is equal to qatDevId (4941) heartbeat status bad",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"4xxxvf"},
dirs: []string{
"sys/bus/pci/drivers/4xxx",
"sys/bus/pci/drivers/vfio-pci",
"sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/qat",
"sys/kernel/debug/qat_4xxx_0000:02:00.0",
"sys/kernel/debug/qat_4xxx_0000:02:00.0/heartbeat",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/devices/pci0000:02/0000:02:00.0/device": []byte("0x4940"),
"sys/devices/pci0000:02/0000:02:00.0/qat/state": []byte("up"),
"sys/devices/pci0000:02/0000:02:00.0/qat/cfg_services": []byte("sym;asym"),
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x4941"),
"sys/kernel/debug/qat_4xxx_0000:02:00.0/heartbeat/status": []byte("-1"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/drivers/4xxx/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/devices/pci0000:02/0000:02:00.0/driver": "sys/bus/pci/drivers/4xxx",
},
maxDevNum: 1,
expectedDevNum: 1,
expectedUnhealthyNum: 1,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfdevID is equal to qatDevId (4941) heartbeat status good",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"4xxxvf"},
dirs: []string{
"sys/bus/pci/drivers/4xxx",
"sys/bus/pci/drivers/vfio-pci",
"sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/qat",
"sys/kernel/debug/qat_4xxx_0000:02:00.0",
"sys/kernel/debug/qat_4xxx_0000:02:00.0/heartbeat",
"sys/bus/pci/devices/0000:02:01.0",
},
files: map[string][]byte{
"sys/devices/pci0000:02/0000:02:00.0/device": []byte("0x4940"),
"sys/devices/pci0000:02/0000:02:00.0/qat/state": []byte("up"),
"sys/devices/pci0000:02/0000:02:00.0/qat/cfg_services": []byte("sym;asym"),
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x4941"),
"sys/kernel/debug/qat_4xxx_0000:02:00.0/heartbeat/status": []byte("0"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/drivers/4xxx/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/devices/pci0000:02/0000:02:00.0/driver": "sys/bus/pci/drivers/4xxx",
},
maxDevNum: 1,
expectedDevNum: 1,
expectedUnhealthyNum: 0,
},
{
name: "vfio-pci DPDKdriver with no kernel bound driver and where vfDevID is equal to qatDevId (37c9) heartbeat status bad",
dpdkDriver: "vfio-pci",
kernelVfDrivers: []string{"c6xxvf"},
dirs: []string{
"sys/bus/pci/drivers/c6xx",
"sys/bus/pci/drivers/vfio-pci",
"sys/bus/pci/devices/0000:02:01.0",
"sys/bus/pci/devices/0000:02:01.1",
"sys/devices/pci0000:02/0000:02:00.0",
"sys/kernel/debug/qat_c6xx_0000:02:00.0/heartbeat",
},
files: map[string][]byte{
"sys/bus/pci/devices/0000:02:01.0/device": []byte("0x37c9"),
"sys/bus/pci/devices/0000:02:01.1/device": []byte("0x37c9"),
"sys/kernel/debug/qat_c6xx_0000:02:00.0/heartbeat/status": []byte("-1"),
},
symlinks: map[string]string{
"sys/bus/pci/devices/0000:02:01.0/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.0/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:02:01.1/iommu_group": "sys/kernel/iommu_groups/vfiotestfile",
"sys/bus/pci/devices/0000:02:01.1/physfn": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/drivers/c6xx/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/bus/pci/devices/0000:02:00.0": "sys/devices/pci0000:02/0000:02:00.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn0": "sys/bus/pci/devices/0000:02:01.0",
"sys/devices/pci0000:02/0000:02:00.0/virtfn1": "sys/bus/pci/devices/0000:02:01.1",
"sys/devices/pci0000:02/0000:02:00.0/driver": "sys/bus/pci/drivers/c6xx",
},
maxDevNum: 3,
expectedDevNum: 2,
expectedUnhealthyNum: 2,
},
}
countUnhealthyDevices := func(tree dpapi.DeviceTree) int {
unhealtyNum := 0
for _, v := range tree {
for _, vv := range v {
field := reflect.ValueOf(vv).FieldByName("state")
if fmt.Sprintf("%+v", field) == pluginapi.Unhealthy {
unhealtyNum = unhealtyNum + 1
}
}
}
return unhealtyNum
}
for _, tt := range tcases {
t.Run(tt.name, func(t *testing.T) {
tmpdir, err := os.MkdirTemp("/tmp/", "qatplugin-TestScanPrivate-*")
if err != nil {
t.Fatal(err)
}
if err = createTestFiles(tmpdir, tt.dirs, tt.files, tt.symlinks); err != nil {
t.Fatalf("%+v", err)
}
dp := newDevicePlugin(
path.Join(tmpdir, "sys/bus/pci/drivers"),
path.Join(tmpdir, "sys/bus/pci/devices"),
tt.maxDevNum,
tt.kernelVfDrivers,
tt.dpdkDriver,
nil,
)
fN := fakeNotifier{
scanDone: dp.scanDone,
}
err = dp.Scan(&fN)
if tt.expectedErr && err == nil {
t.Errorf("expected error, but got success")
}
if !tt.expectedErr && err != nil {
t.Errorf("got unexpected error: %+v", err)
}
devNum := 0
for _, resource := range fN.tree {
devNum = devNum + len(resource)
}
if devNum != tt.expectedDevNum {
t.Errorf("expected %d, but got %d devices", tt.expectedDevNum, devNum)
}
if unhealtyNum := countUnhealthyDevices(fN.tree); unhealtyNum != tt.expectedUnhealthyNum {
t.Errorf("expected %d, but got %d unhealthy devices", tt.expectedUnhealthyNum, unhealtyNum)
}
if err = os.RemoveAll(tmpdir); err != nil {
t.Fatal(err)
}
})
}
}
func eleInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
func TestPostAllocate(t *testing.T) {
response := new(pluginapi.AllocateResponse)
cresp := new(pluginapi.ContainerAllocateResponse)
response.ContainerResponses = append(response.ContainerResponses, cresp)
testMap := map[string]string{
"QAT29": "03:04.1",
"QAT13": "03:04.2",
"QAT6": "03:04.3",
"QAT21": "03:04.4",
}
response.ContainerResponses[0].Envs = testMap
resultKey := []string{
"QAT0",
"QAT1",
"QAT2",
"QAT3",
}
expectedValues := map[string]struct{}{
"03:04.1": {},
"03:04.2": {},
"03:04.3": {},
"03:04.4": {},
}
dp := &DevicePlugin{}
if err := dp.PostAllocate(response); err != nil {
t.Errorf("Unexpected error: %+v", err)
}
if len(response.ContainerResponses[0].Envs) != 4 {
t.Fatal("Set wrong number of Environment Variables")
}
for k := range response.ContainerResponses[0].Envs {
if !eleInSlice(k, resultKey) {
t.Fatalf("Set wrong key: %s. The key should be in the range %v", k, resultKey)
}
}
for _, key := range resultKey {
if value, ok := response.ContainerResponses[0].Envs[key]; ok {
if _, ok := expectedValues[value]; ok {
delete(expectedValues, value)
} else {
t.Errorf("Unexpected value %s", value)
}
}
}
}