nvidia-container-toolkit/pkg/nvcdi/gds.go
Evan Lezar 52da12cf9a Allow multiple device name strategies to be specified
Signed-off-by: Evan Lezar <elezar@nvidia.com>
2024-02-13 16:38:05 +01:00

91 lines
3.2 KiB
Go

/**
# Copyright (c) NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
**/
package nvcdi
import (
"fmt"
"github.com/NVIDIA/go-nvlib/pkg/nvlib/device"
"tags.cncf.io/container-device-interface/pkg/cdi"
"tags.cncf.io/container-device-interface/specs-go"
"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
"github.com/NVIDIA/nvidia-container-toolkit/internal/edits"
"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
)
type gdslib nvcdilib
var _ Interface = (*gdslib)(nil)
// GetAllDeviceSpecs returns the device specs for all available devices.
func (l *gdslib) GetAllDeviceSpecs() ([]specs.Device, error) {
discoverer, err := discover.NewGDSDiscoverer(l.logger, l.driverRoot, l.devRoot)
if err != nil {
return nil, fmt.Errorf("failed to create GPUDirect Storage discoverer: %v", err)
}
edits, err := edits.FromDiscoverer(discoverer)
if err != nil {
return nil, fmt.Errorf("failed to create container edits for GPUDirect Storage: %v", err)
}
deviceSpec := specs.Device{
Name: "all",
ContainerEdits: *edits.ContainerEdits,
}
return []specs.Device{deviceSpec}, nil
}
// GetCommonEdits generates a CDI specification that can be used for ANY devices
func (l *gdslib) GetCommonEdits() (*cdi.ContainerEdits, error) {
return edits.FromDiscoverer(discover.None{})
}
// GetSpec is unsppported for the gdslib specs.
// gdslib is typically wrapped by a spec that implements GetSpec.
func (l *gdslib) GetSpec() (spec.Interface, error) {
return nil, fmt.Errorf("GetSpec is not supported")
}
// GetGPUDeviceEdits is unsupported for the gdslib specs
func (l *gdslib) GetGPUDeviceEdits(device.Device) (*cdi.ContainerEdits, error) {
return nil, fmt.Errorf("GetGPUDeviceEdits is not supported")
}
// GetGPUDeviceSpecs is unsupported for the gdslib specs
func (l *gdslib) GetGPUDeviceSpecs(int, device.Device) ([]specs.Device, error) {
return nil, fmt.Errorf("GetGPUDeviceSpecs is not supported")
}
// GetMIGDeviceEdits is unsupported for the gdslib specs
func (l *gdslib) GetMIGDeviceEdits(device.Device, device.MigDevice) (*cdi.ContainerEdits, error) {
return nil, fmt.Errorf("GetMIGDeviceEdits is not supported")
}
// GetMIGDeviceSpecs is unsupported for the gdslib specs
func (l *gdslib) GetMIGDeviceSpecs(int, device.Device, int, device.MigDevice) ([]specs.Device, error) {
return nil, fmt.Errorf("GetMIGDeviceSpecs is not supported")
}
// GetDeviceSpecsByID returns the CDI device specs for the GPU(s) represented by
// the provided identifiers, where an identifier is an index or UUID of a valid
// GPU device.
func (l *gdslib) GetDeviceSpecsByID(...string) ([]specs.Device, error) {
return nil, fmt.Errorf("GetDeviceSpecsByID is not supported")
}