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feat: implement PCI device bus enumeration
Fixes siderolabs#8826 From the QEMU VM: ```shell $ talosctl -n 172.20.0.5 get pcidevice NODE NAMESPACE TYPE ID VERSION CLASS SUBCLASS VENDOR PRODUCT 172.20.0.5 hardware PCIDevice 0000:00:00.0 1 Bridge Host bridge Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller 172.20.0.5 hardware PCIDevice 0000:00:01.0 1 Display controller VGA compatible controller 172.20.0.5 hardware PCIDevice 0000:00:02.0 1 Network controller Ethernet controller Red Hat, Inc. Virtio network device 172.20.0.5 hardware PCIDevice 0000:00:03.0 1 Unclassified device Red Hat, Inc. Virtio RNG 172.20.0.5 hardware PCIDevice 0000:00:04.0 1 Unclassified device Red Hat, Inc. Virtio memory balloon 172.20.0.5 hardware PCIDevice 0000:00:05.0 1 Communication controller Communication controller Red Hat, Inc. Virtio console 172.20.0.5 hardware PCIDevice 0000:00:06.0 1 Generic system peripheral System peripheral Intel Corporation 6300ESB Watchdog Timer 172.20.0.5 hardware PCIDevice 0000:00:07.0 1 Mass storage controller SCSI storage controller Red Hat, Inc. Virtio block device 172.20.0.5 hardware PCIDevice 0000:00:1f.0 1 Bridge ISA bridge Intel Corporation 82801IB (ICH9) LPC Interface Controller 172.20.0.5 hardware PCIDevice 0000:00:1f.2 1 Mass storage controller SATA controller Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode] 172.20.0.5 hardware PCIDevice 0000:00:1f.3 1 Serial bus controller SMBus Intel Corporation 82801I (ICH9 Family) SMBus Controller ``` ```yaml node: 172.20.0.5 metadata: namespace: hardware type: PCIDevices.hardware.talos.dev id: 0000:00:1f.3 version: 1 owner: hardware.PCIDevicesController phase: running created: 2024-05-30T12:09:05Z updated: 2024-05-30T12:09:05Z spec: class: Serial bus controller subclass: SMBus vendor: Intel Corporation product: 82801I (ICH9 Family) SMBus Controller class_id: "0x0c" subclass_id: "0x05" vendor_id: "0x8086" product_id: "0x2930" ``` Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
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138 changes: 138 additions & 0 deletions
138
internal/app/machined/pkg/controllers/hardware/pcidevices.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
|
|
||
| package hardware | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "strconv" | ||
|
|
||
| "github.com/cosi-project/runtime/pkg/controller" | ||
| "github.com/cosi-project/runtime/pkg/safe" | ||
| "github.com/siderolabs/go-pcidb/pkg/pcidb" | ||
| "go.uber.org/zap" | ||
|
|
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| runtimetalos "github.com/siderolabs/talos/internal/app/machined/pkg/runtime" | ||
| "github.com/siderolabs/talos/pkg/machinery/resources/hardware" | ||
| ) | ||
|
|
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| // PCIDevicesController populates PCI device information. | ||
| type PCIDevicesController struct { | ||
| V1Alpha1Mode runtimetalos.Mode | ||
| } | ||
|
|
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| // Name implements controller.Controller interface. | ||
| func (ctrl *PCIDevicesController) Name() string { | ||
| return "hardware.PCIDevicesController" | ||
| } | ||
|
|
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| // Inputs implements controller.Controller interface. | ||
| func (ctrl *PCIDevicesController) Inputs() []controller.Input { | ||
| return nil | ||
| } | ||
|
|
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| // Outputs implements controller.Controller interface. | ||
| func (ctrl *PCIDevicesController) Outputs() []controller.Output { | ||
| return []controller.Output{ | ||
| { | ||
| Type: hardware.PCIDeviceType, | ||
| Kind: controller.OutputExclusive, | ||
| }, | ||
| } | ||
| } | ||
|
|
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| // Run implements controller.Controller interface. | ||
| // | ||
| //nolint:gocyclo | ||
| func (ctrl *PCIDevicesController) Run(ctx context.Context, r controller.Runtime, logger *zap.Logger) error { | ||
| // PCI device info doesn't make sense inside a container, so skip the controller | ||
| if ctrl.V1Alpha1Mode == runtimetalos.ModeContainer { | ||
| return nil | ||
| } | ||
|
|
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| // [TODO]: a single run for now, need to figure out how to trigger rescan | ||
| for { | ||
| select { | ||
| case <-ctx.Done(): | ||
| return nil | ||
| case <-r.EventCh(): | ||
| } | ||
|
|
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| deviceIDs, err := os.ReadDir("/sys/bus/pci/devices") | ||
| if err != nil { | ||
| return fmt.Errorf("error scanning devices: %w", err) | ||
| } | ||
|
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| logger.Debug("found PCI devices", zap.Int("count", len(deviceIDs))) | ||
|
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| r.StartTrackingOutputs() | ||
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| for _, deviceID := range deviceIDs { | ||
| class, err := readHexPCIInfo(deviceID.Name(), "class") | ||
| if err != nil { | ||
| if os.IsNotExist(err) { | ||
| continue | ||
| } | ||
|
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| return fmt.Errorf("error parsing device %s class: %w", deviceID.Name(), err) | ||
| } | ||
|
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| vendor, err := readHexPCIInfo(deviceID.Name(), "vendor") | ||
| if err != nil { | ||
| if os.IsNotExist(err) { | ||
| continue | ||
| } | ||
|
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| return fmt.Errorf("error parsing device %s vendor: %w", deviceID.Name(), err) | ||
| } | ||
|
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| product, err := readHexPCIInfo(deviceID.Name(), "device") | ||
| if err != nil { | ||
| if os.IsNotExist(err) { | ||
| continue | ||
| } | ||
|
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| return fmt.Errorf("error parsing device %s product: %w", deviceID.Name(), err) | ||
| } | ||
|
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| classID := pcidb.Class((class >> 16) & 0xff) | ||
| subclassID := pcidb.Subclass((class >> 8) & 0xff) | ||
| vendorID := pcidb.Vendor(vendor) | ||
| productID := pcidb.Product(product) | ||
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| if err := safe.WriterModify(ctx, r, hardware.NewPCIDeviceInfo(deviceID.Name()), func(r *hardware.PCIDevice) error { | ||
| r.TypedSpec().ClassID = fmt.Sprintf("0x%02x", classID) | ||
| r.TypedSpec().SubclassID = fmt.Sprintf("0x%02x", subclassID) | ||
| r.TypedSpec().VendorID = fmt.Sprintf("0x%04x", vendorID) | ||
| r.TypedSpec().ProductID = fmt.Sprintf("0x%04x", productID) | ||
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| r.TypedSpec().Class, _ = pcidb.LookupClass(classID) | ||
| r.TypedSpec().Subclass, _ = pcidb.LookupSubclass(classID, subclassID) | ||
| r.TypedSpec().Vendor, _ = pcidb.LookupVendor(vendorID) | ||
| r.TypedSpec().Product, _ = pcidb.LookupProduct(vendorID, productID) | ||
|
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| return nil | ||
| }); err != nil { | ||
| return fmt.Errorf("error modifying output resource: %w", err) | ||
| } | ||
| } | ||
|
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| if err = safe.CleanupOutputs[*hardware.PCIDevice](ctx, r); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
|
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| func readHexPCIInfo(deviceID, info string) (uint64, error) { | ||
| contents, err := os.ReadFile(filepath.Join("/sys/bus/pci/devices", deviceID, info)) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
|
|
||
| return strconv.ParseUint(string(bytes.TrimSpace(contents)), 0, 64) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
|
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| //go:build integration_api | ||
|
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| package api | ||
|
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| import ( | ||
| "context" | ||
| "time" | ||
|
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| "github.com/cosi-project/runtime/pkg/resource" | ||
| "github.com/cosi-project/runtime/pkg/safe" | ||
| "github.com/google/uuid" | ||
|
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| "github.com/siderolabs/talos/internal/integration/base" | ||
| "github.com/siderolabs/talos/pkg/machinery/client" | ||
| "github.com/siderolabs/talos/pkg/machinery/resources/hardware" | ||
| ) | ||
|
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| // HardwareSuite ... | ||
| type HardwareSuite struct { | ||
| base.APISuite | ||
|
|
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| ctx context.Context //nolint:containedctx | ||
| ctxCancel context.CancelFunc | ||
| } | ||
|
|
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| // SuiteName ... | ||
| func (suite *HardwareSuite) SuiteName() string { | ||
| return "api.HardwareSuite" | ||
| } | ||
|
|
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| // SetupTest ... | ||
| func (suite *HardwareSuite) SetupTest() { | ||
| if !suite.Capabilities().RunsTalosKernel { | ||
| suite.T().Skipf("doesn't run Talos kernel, skipping") | ||
| } | ||
|
|
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| suite.ctx, suite.ctxCancel = context.WithTimeout(context.Background(), 15*time.Second) | ||
| } | ||
|
|
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| // TearDownTest ... | ||
| func (suite *HardwareSuite) TearDownTest() { | ||
| if suite.ctxCancel != nil { | ||
| suite.ctxCancel() | ||
| } | ||
| } | ||
|
|
||
| // TestSystemInformation tests that SystemInformation is populated. | ||
| func (suite *HardwareSuite) TestSystemInformation() { | ||
| node := suite.RandomDiscoveredNodeInternalIP() | ||
|
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| sysInfo, err := safe.StateGetByID[*hardware.SystemInformation](client.WithNode(suite.ctx, node), suite.Client.COSI, hardware.SystemInformationID) | ||
| suite.Require().NoError(err) | ||
|
|
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| suite.Assert().NotEmpty(sysInfo.TypedSpec().UUID) | ||
| suite.Assert().NotEqual((uuid.UUID{}).String(), sysInfo.TypedSpec().UUID) | ||
| } | ||
|
|
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| // TestHardwareInfo tests that hardware info is populated. | ||
| func (suite *HardwareSuite) TestHardwareInfo() { | ||
| node := suite.RandomDiscoveredNodeInternalIP() | ||
|
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| for _, resourceType := range []resource.Type{ | ||
| hardware.MemoryModuleType, | ||
| hardware.ProcessorType, | ||
| hardware.PCIDeviceType, | ||
| } { | ||
| items, err := suite.Client.COSI.List(client.WithNode(suite.ctx, node), resource.NewMetadata(hardware.NamespaceName, resourceType, "", resource.VersionUndefined)) | ||
| suite.Require().NoError(err) | ||
|
|
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| suite.Assert().NotEmpty(items.Items, "resource type %s is not populated", resourceType) | ||
| } | ||
| } | ||
|
|
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| func init() { | ||
| allSuites = append(allSuites, new(HardwareSuite)) | ||
| } |
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