mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-29 16:02:10 +00:00
110 lines
3.1 KiB
Go
110 lines
3.1 KiB
Go
/**
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# Copyright (c) NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package nvcdi
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import (
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"fmt"
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"github.com/NVIDIA/go-nvlib/pkg/nvlib/device"
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"github.com/NVIDIA/go-nvlib/pkg/nvml"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/edits"
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"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
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"tags.cncf.io/container-device-interface/pkg/cdi"
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"tags.cncf.io/container-device-interface/specs-go"
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)
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type nvmllib nvcdilib
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var _ Interface = (*nvmllib)(nil)
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// GetSpec should not be called for nvmllib
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func (l *nvmllib) GetSpec() (spec.Interface, error) {
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return nil, fmt.Errorf("Unexpected call to nvmllib.GetSpec()")
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}
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// GetAllDeviceSpecs returns the device specs for all available devices.
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func (l *nvmllib) GetAllDeviceSpecs() ([]specs.Device, error) {
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var deviceSpecs []specs.Device
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if r := l.nvmllib.Init(); r != nvml.SUCCESS {
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return nil, fmt.Errorf("failed to initialize NVML: %v", r)
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}
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defer func() {
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if r := l.nvmllib.Shutdown(); r != nvml.SUCCESS {
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l.logger.Warningf("failed to shutdown NVML: %v", r)
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}
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}()
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gpuDeviceSpecs, err := l.getGPUDeviceSpecs()
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if err != nil {
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return nil, err
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}
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deviceSpecs = append(deviceSpecs, gpuDeviceSpecs...)
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migDeviceSpecs, err := l.getMigDeviceSpecs()
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if err != nil {
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return nil, err
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}
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deviceSpecs = append(deviceSpecs, migDeviceSpecs...)
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return deviceSpecs, nil
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}
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// GetCommonEdits generates a CDI specification that can be used for ANY devices
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func (l *nvmllib) GetCommonEdits() (*cdi.ContainerEdits, error) {
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common, err := newCommonNVMLDiscoverer(l.logger, l.driverRoot, l.nvidiaCTKPath, l.nvmllib)
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if err != nil {
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return nil, fmt.Errorf("failed to create discoverer for common entities: %v", err)
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}
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return edits.FromDiscoverer(common)
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}
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func (l *nvmllib) getGPUDeviceSpecs() ([]specs.Device, error) {
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var deviceSpecs []specs.Device
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err := l.devicelib.VisitDevices(func(i int, d device.Device) error {
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deviceSpec, err := l.GetGPUDeviceSpecs(i, d)
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if err != nil {
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return err
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}
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deviceSpecs = append(deviceSpecs, *deviceSpec)
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("failed to generate CDI edits for GPU devices: %v", err)
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}
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return deviceSpecs, err
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}
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func (l *nvmllib) getMigDeviceSpecs() ([]specs.Device, error) {
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var deviceSpecs []specs.Device
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err := l.devicelib.VisitMigDevices(func(i int, d device.Device, j int, mig device.MigDevice) error {
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deviceSpec, err := l.GetMIGDeviceSpecs(i, d, j, mig)
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if err != nil {
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return err
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}
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deviceSpecs = append(deviceSpecs, *deviceSpec)
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("failed to generate CDI edits for GPU devices: %v", err)
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}
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return deviceSpecs, err
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}
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