mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-23 00:38:26 +00:00
85 lines
2.7 KiB
Go
85 lines
2.7 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 generate
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import (
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"fmt"
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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/nvml"
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)
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type deviceNamer interface {
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GetDeviceName(int, device.Device) (string, error)
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GetMigDeviceName(int, int, device.MigDevice) (string, error)
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}
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const (
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deviceNameStrategyIndex = "index"
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deviceNameStrategyTypeIndex = "type-index"
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deviceNameStrategyUUID = "uuid"
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)
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type deviceNameIndex struct {
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gpuPrefix string
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migPrefix string
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}
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type deviceNameUUID struct{}
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// newDeviceNamer creates a Device Namer based on the supplied strategy.
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// This namer can be used to construct the names for MIG and GPU devices when generating the CDI spec.
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func newDeviceNamer(strategy string) (deviceNamer, error) {
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switch strategy {
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case deviceNameStrategyIndex:
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return deviceNameIndex{}, nil
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case deviceNameStrategyTypeIndex:
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return deviceNameIndex{gpuPrefix: "gpu", migPrefix: "mig"}, nil
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case deviceNameStrategyUUID:
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return deviceNameUUID{}, nil
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}
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return nil, fmt.Errorf("invalid device name strategy: %v", strategy)
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}
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// GetDeviceName returns the name for the specified device based on the naming strategy
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func (s deviceNameIndex) GetDeviceName(i int, d device.Device) (string, error) {
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return fmt.Sprintf("%s%d", s.gpuPrefix, i), nil
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}
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// GetMigDeviceName returns the name for the specified device based on the naming strategy
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func (s deviceNameIndex) GetMigDeviceName(i int, j int, d device.MigDevice) (string, error) {
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return fmt.Sprintf("%s%d:%d", s.migPrefix, i, j), nil
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}
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// GetDeviceName returns the name for the specified device based on the naming strategy
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func (s deviceNameUUID) GetDeviceName(i int, d device.Device) (string, error) {
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uuid, ret := d.GetUUID()
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if ret != nvml.SUCCESS {
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return "", fmt.Errorf("failed to get device UUID: %v", ret)
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}
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return uuid, nil
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}
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// GetMigDeviceName returns the name for the specified device based on the naming strategy
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func (s deviceNameUUID) GetMigDeviceName(i int, j int, d device.MigDevice) (string, error) {
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uuid, ret := d.GetUUID()
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if ret != nvml.SUCCESS {
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return "", fmt.Errorf("failed to get device UUID: %v", ret)
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}
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return uuid, nil
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}
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