mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 08:18:32 +00:00
139 lines
3.0 KiB
Go
139 lines
3.0 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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"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
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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/nvlib/info"
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"gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvml"
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)
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type wrapper struct {
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Interface
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vendor string
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class string
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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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mode string
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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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vendor string
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class string
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infolib info.Interface
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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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for _, opt := range opts {
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opt(l)
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}
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if l.mode == "" {
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l.mode = ModeAuto
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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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if l.infolib == nil {
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l.infolib = info.New()
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}
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var lib Interface
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switch l.resolveMode() {
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case ModeNvml:
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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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lib = (*nvmllib)(l)
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case ModeWsl:
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lib = (*wsllib)(l)
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default:
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// TODO: We would like to return an error here instead of panicking
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panic("Unknown mode")
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}
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w := wrapper{
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Interface: lib,
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vendor: l.vendor,
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class: l.class,
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}
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return &w
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}
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// GetSpec combines the device specs and common edits from the wrapped Interface to a single spec.Interface.
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func (l *wrapper) GetSpec() (spec.Interface, error) {
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deviceSpecs, err := l.GetAllDeviceSpecs()
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if err != nil {
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return nil, err
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}
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edits, err := l.GetCommonEdits()
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if err != nil {
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return nil, err
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}
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return spec.New(
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spec.WithDeviceSpecs(deviceSpecs),
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spec.WithEdits(*edits.ContainerEdits),
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spec.WithVendor(l.vendor),
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spec.WithClass(l.class),
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)
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}
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// resolveMode resolves the mode for CDI spec generation based on the current system.
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func (l *nvcdilib) resolveMode() (rmode string) {
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if l.mode != ModeAuto {
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return l.mode
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}
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defer func() {
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l.logger.Infof("Auto-detected mode as %q", rmode)
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}()
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isWSL, reason := l.infolib.HasDXCore()
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l.logger.Debugf("Is WSL-based system? %v: %v", isWSL, reason)
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if isWSL {
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return ModeWsl
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}
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return ModeNvml
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}
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