mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-25 13:35:00 +00:00
5b110fba2d
This change adds an nvcdi package that exposes a basic API for CDI spec generation. This is used from the nvidia-ctk cdi generate command and can be consumed by DRA implementations and the device plugin. Signed-off-by: Evan Lezar <elezar@nvidia.com>
115 lines
2.9 KiB
Go
115 lines
2.9 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/container-orchestrated-devices/container-device-interface/specs-go"
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"github.com/sirupsen/logrus"
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"gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvlib/device"
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"gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvml"
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)
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type nvcdilib struct {
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logger *logrus.Logger
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nvmllib nvml.Interface
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devicelib device.Interface
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deviceNamer DeviceNamer
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driverRoot string
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nvidiaCTKPath string
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}
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// New creates a new nvcdi library
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func New(opts ...Option) Interface {
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l := &nvcdilib{}
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if l.nvmllib == nil {
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l.nvmllib = nvml.New()
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}
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if l.devicelib == nil {
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l.devicelib = device.New(device.WithNvml(l.nvmllib))
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}
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if l.logger == nil {
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l.logger = logrus.StandardLogger()
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}
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if l.deviceNamer == nil {
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l.deviceNamer, _ = NewDeviceNamer(DeviceNameStrategyIndex)
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}
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if l.driverRoot == "" {
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l.driverRoot = "/"
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}
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if l.nvidiaCTKPath == "" {
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l.nvidiaCTKPath = "/usr/bin/nvidia-ctk"
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}
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return l
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}
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// GetAllDeviceSpecs returns the device specs for all available devices.
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func (l *nvcdilib) GetAllDeviceSpecs() ([]specs.Device, error) {
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var deviceSpecs []specs.Device
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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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func (l *nvcdilib) 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 *nvcdilib) 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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