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https://github.com/NVIDIA/nvidia-container-toolkit
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d4e21fdd10
A driverRoot defines both the driver library root and the root for device nodes. In the case of preinstalled drivers or the driver container, these are equal, but in cases such as GKE they do not match. In this case, drivers are extracted to a folder and devices exist at the root /. The changes here add a devRoot option to the nvcdi API that allows the parent of /dev to be specified explicitly. Signed-off-by: Evan Lezar <elezar@nvidia.com>
83 lines
2.9 KiB
Go
83 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/NVIDIA/go-nvlib/pkg/nvlib/device"
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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/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 gdslib nvcdilib
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var _ Interface = (*gdslib)(nil)
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// GetAllDeviceSpecs returns the device specs for all available devices.
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func (l *gdslib) GetAllDeviceSpecs() ([]specs.Device, error) {
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discoverer, err := discover.NewGDSDiscoverer(l.logger, l.driverRoot, l.devRoot)
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if err != nil {
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return nil, fmt.Errorf("failed to create GPUDirect Storage discoverer: %v", err)
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}
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edits, err := edits.FromDiscoverer(discoverer)
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if err != nil {
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return nil, fmt.Errorf("failed to create container edits for GPUDirect Storage: %v", err)
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}
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deviceSpec := specs.Device{
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Name: "all",
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ContainerEdits: *edits.ContainerEdits,
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}
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return []specs.Device{deviceSpec}, 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 *gdslib) GetCommonEdits() (*cdi.ContainerEdits, error) {
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return edits.FromDiscoverer(discover.None{})
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}
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// GetSpec is unsppported for the gdslib specs.
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// gdslib is typically wrapped by a spec that implements GetSpec.
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func (l *gdslib) GetSpec() (spec.Interface, error) {
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return nil, fmt.Errorf("GetSpec is not supported")
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}
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// GetGPUDeviceEdits is unsupported for the gdslib specs
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func (l *gdslib) GetGPUDeviceEdits(device.Device) (*cdi.ContainerEdits, error) {
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return nil, fmt.Errorf("GetGPUDeviceEdits is not supported")
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}
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// GetGPUDeviceSpecs is unsupported for the gdslib specs
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func (l *gdslib) GetGPUDeviceSpecs(int, device.Device) (*specs.Device, error) {
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return nil, fmt.Errorf("GetGPUDeviceSpecs is not supported")
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}
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// GetMIGDeviceEdits is unsupported for the gdslib specs
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func (l *gdslib) GetMIGDeviceEdits(device.Device, device.MigDevice) (*cdi.ContainerEdits, error) {
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return nil, fmt.Errorf("GetMIGDeviceEdits is not supported")
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}
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// GetMIGDeviceSpecs is unsupported for the gdslib specs
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func (l *gdslib) GetMIGDeviceSpecs(int, device.Device, int, device.MigDevice) (*specs.Device, error) {
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return nil, fmt.Errorf("GetMIGDeviceSpecs is not supported")
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}
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