mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 08:18:32 +00:00
82 lines
2.2 KiB
Go
82 lines
2.2 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 info
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/NVIDIA/go-nvlib/pkg/nvlib/device"
|
|
"github.com/NVIDIA/go-nvlib/pkg/nvlib/info"
|
|
"github.com/NVIDIA/go-nvlib/pkg/nvml"
|
|
)
|
|
|
|
// additionalInfo allows for the info.Interface to be extened to implement the infoInterface.
|
|
type additionalInfo struct {
|
|
info.Interface
|
|
nvmllib nvml.Interface
|
|
devicelib device.Interface
|
|
}
|
|
|
|
// UsesNVGPUModule checks whether the nvgpu module is used.
|
|
// We use the device name to signal this, since devices that use the nvgpu module have their device
|
|
// names as:
|
|
//
|
|
// GPU 0: Orin (nvgpu) (UUID: 54d0709b-558d-5a59-9c65-0c5fc14a21a4)
|
|
//
|
|
// This function returns true if ALL devices use the nvgpu module.
|
|
func (i additionalInfo) UsesNVGPUModule() (uses bool, reason string) {
|
|
// We ensure that this function never panics
|
|
defer func() {
|
|
if err := recover(); err != nil {
|
|
uses = false
|
|
reason = fmt.Sprintf("panic: %v", err)
|
|
}
|
|
}()
|
|
|
|
ret := i.nvmllib.Init()
|
|
if ret != nvml.SUCCESS {
|
|
return false, fmt.Sprintf("failed to initialize nvml: %v", ret)
|
|
}
|
|
defer i.nvmllib.Shutdown()
|
|
|
|
var names []string
|
|
|
|
err := i.devicelib.VisitDevices(func(i int, d device.Device) error {
|
|
name, ret := d.GetName()
|
|
if ret != nvml.SUCCESS {
|
|
return fmt.Errorf("device %v: %v", i, ret)
|
|
}
|
|
names = append(names, name)
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
return false, fmt.Sprintf("failed to get device names: %v", err)
|
|
}
|
|
|
|
if len(names) == 0 {
|
|
return false, "no devices found"
|
|
}
|
|
|
|
for _, name := range names {
|
|
if !strings.Contains(name, "(nvgpu)") {
|
|
return false, fmt.Sprintf("device %q does not use nvgpu module", name)
|
|
}
|
|
}
|
|
return true, "all devices use nvgpu module"
|
|
}
|