mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-25 21:39:10 +00:00
89bf81a9db
This change adds a --device-name-strategy flag for generating a CDI specificaion. This allows a CDI spec to be generated with the following names used for device: * type-index: gpu0 and mig0:1 * index: 0 and 0:1 * uuid: GPU and MIG UUIDs Note that the use of 'index' generates a v0.5.0 CDI specification since this relaxes the restriction on the device names. Signed-off-by: Evan Lezar <elezar@nvidia.com>
85 lines
2.7 KiB
Go
85 lines
2.7 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 generate
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvlib/device"
|
|
"gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvml"
|
|
)
|
|
|
|
type deviceNamer interface {
|
|
GetDeviceName(int, device.Device) (string, error)
|
|
GetMigDeviceName(int, int, device.MigDevice) (string, error)
|
|
}
|
|
|
|
const (
|
|
deviceNameStrategyIndex = "index"
|
|
deviceNameStrategyTypeIndex = "type-index"
|
|
deviceNameStrategyUUID = "uuid"
|
|
)
|
|
|
|
type deviceNameIndex struct {
|
|
gpuPrefix string
|
|
migPrefix string
|
|
}
|
|
type deviceNameUUID struct{}
|
|
|
|
// NewDeviceNamer creates a Device Namer based on the supplied strategy.
|
|
// This namer can be used to construct the names for MIG and GPU devices when generating the CDI spec.
|
|
func NewDeviceNamer(strategy string) (deviceNamer, error) {
|
|
switch strategy {
|
|
case deviceNameStrategyIndex:
|
|
return deviceNameIndex{}, nil
|
|
case deviceNameStrategyTypeIndex:
|
|
return deviceNameIndex{gpuPrefix: "gpu", migPrefix: "mig"}, nil
|
|
case deviceNameStrategyUUID:
|
|
return deviceNameUUID{}, nil
|
|
}
|
|
|
|
return nil, fmt.Errorf("invalid device name strategy: %v", strategy)
|
|
}
|
|
|
|
// GetDeviceName returns the name for the specified device based on the naming strategy
|
|
func (s deviceNameIndex) GetDeviceName(i int, d device.Device) (string, error) {
|
|
return fmt.Sprintf("%s%d", s.gpuPrefix, i), nil
|
|
}
|
|
|
|
// GetMigDeviceName returns the name for the specified device based on the naming strategy
|
|
func (s deviceNameIndex) GetMigDeviceName(i int, j int, d device.MigDevice) (string, error) {
|
|
return fmt.Sprintf("%s%d:%d", s.migPrefix, i, j), nil
|
|
}
|
|
|
|
// GetDeviceName returns the name for the specified device based on the naming strategy
|
|
func (s deviceNameUUID) GetDeviceName(i int, d device.Device) (string, error) {
|
|
uuid, ret := d.GetUUID()
|
|
if ret != nvml.SUCCESS {
|
|
return "", fmt.Errorf("failed to get device UUID: %v", ret)
|
|
}
|
|
return uuid, nil
|
|
}
|
|
|
|
// GetMigDeviceName returns the name for the specified device based on the naming strategy
|
|
func (s deviceNameUUID) GetMigDeviceName(i int, j int, d device.MigDevice) (string, error) {
|
|
uuid, ret := d.GetUUID()
|
|
if ret != nvml.SUCCESS {
|
|
return "", fmt.Errorf("failed to get device UUID: %v", ret)
|
|
}
|
|
return uuid, nil
|
|
}
|