mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2025-03-17 05:48:21 +00:00
610b1c696c
Paves the way for future work on more general representation of feature data and looser coupling of the data and feature source interface.
56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 iommu
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import (
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"fmt"
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"io/ioutil"
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"sigs.k8s.io/node-feature-discovery/source"
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)
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const Name = "iommu"
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// Implement FeatureSource interface
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type Source struct{}
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func (s Source) Name() string { return Name }
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// NewConfig method of the FeatureSource interface
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func (s *Source) NewConfig() source.Config { return nil }
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// GetConfig method of the FeatureSource interface
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func (s *Source) GetConfig() source.Config { return nil }
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// SetConfig method of the FeatureSource interface
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func (s *Source) SetConfig(source.Config) {}
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func (s Source) Discover() (source.Features, error) {
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features := source.Features{}
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// Check if any iommu devices are available
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devices, err := ioutil.ReadDir(source.SysfsDir.Path("class/iommu/"))
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if err != nil {
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return nil, fmt.Errorf("failed to check for IOMMU support: %v", err)
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}
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if len(devices) > 0 {
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features["enabled"] = true
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}
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return features, nil
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}
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