mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-24 04:54:00 +00:00
94 lines
2.8 KiB
Go
94 lines
2.8 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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"tags.cncf.io/container-device-interface/pkg/cdi"
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"tags.cncf.io/container-device-interface/specs-go"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/edits"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/platform-support/dgpu"
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)
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// GetGPUDeviceSpecs returns the CDI device specs for the full GPU represented by 'device'.
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func (l *nvmllib) GetGPUDeviceSpecs(i int, d device.Device) ([]specs.Device, error) {
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edits, err := l.GetGPUDeviceEdits(d)
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if err != nil {
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return nil, fmt.Errorf("failed to get edits for device: %v", err)
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}
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var deviceSpecs []specs.Device
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names, err := l.deviceNamers.GetDeviceNames(i, convert{d})
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if err != nil {
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return nil, fmt.Errorf("failed to get device name: %v", err)
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}
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for _, name := range names {
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spec := specs.Device{
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Name: name,
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ContainerEdits: *edits.ContainerEdits,
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}
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deviceSpecs = append(deviceSpecs, spec)
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}
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return deviceSpecs, nil
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}
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// GetGPUDeviceEdits returns the CDI edits for the full GPU represented by 'device'.
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func (l *nvmllib) GetGPUDeviceEdits(d device.Device) (*cdi.ContainerEdits, error) {
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device, err := l.newFullGPUDiscoverer(d)
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if err != nil {
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return nil, fmt.Errorf("failed to create device discoverer: %v", err)
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}
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editsForDevice, err := edits.FromDiscoverer(device)
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if err != nil {
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return nil, fmt.Errorf("failed to create container edits for device: %v", err)
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}
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return editsForDevice, nil
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}
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// newFullGPUDiscoverer creates a discoverer for the full GPU defined by the specified device.
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func (l *nvmllib) newFullGPUDiscoverer(d device.Device) (discover.Discover, error) {
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deviceNodes, err := dgpu.NewForDevice(d,
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dgpu.WithDevRoot(l.devRoot),
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dgpu.WithLogger(l.logger),
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dgpu.WithNVIDIACDIHookPath(l.nvidiaCDIHookPath),
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)
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if err != nil {
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return nil, fmt.Errorf("failed to create device discoverer: %v", err)
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}
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deviceFolderPermissionHooks := newDeviceFolderPermissionHookDiscoverer(
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l.logger,
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l.devRoot,
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l.nvidiaCDIHookPath,
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deviceNodes,
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)
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dd := discover.Merge(
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deviceNodes,
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deviceFolderPermissionHooks,
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)
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return dd, nil
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}
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