mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-25 21:39:10 +00:00
76 lines
2.3 KiB
Go
76 lines
2.3 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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"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/nvcaps"
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"github.com/sirupsen/logrus"
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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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// NewMigDeviceDiscoverer creates a discoverer for the specified mig device and its parent.
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func NewMigDeviceDiscoverer(logger *logrus.Logger, root string, parent device.Device, d device.MigDevice) (discover.Discover, error) {
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minor, ret := parent.GetMinorNumber()
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if ret != nvml.SUCCESS {
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return nil, fmt.Errorf("error getting GPU device minor number: %v", ret)
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}
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parentPath := fmt.Sprintf("/dev/nvidia%d", minor)
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migCaps, err := nvcaps.NewMigCaps()
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if err != nil {
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return nil, fmt.Errorf("error getting MIG capability device paths: %v", err)
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}
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gi, ret := d.GetGpuInstanceId()
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if ret != nvml.SUCCESS {
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return nil, fmt.Errorf("error getting GPU Instance ID: %v", ret)
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}
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ci, ret := d.GetComputeInstanceId()
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if ret != nvml.SUCCESS {
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return nil, fmt.Errorf("error getting Compute Instance ID: %v", ret)
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}
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giCap := nvcaps.NewGPUInstanceCap(minor, gi)
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giCapDevicePath, err := migCaps.GetCapDevicePath(giCap)
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if err != nil {
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return nil, fmt.Errorf("failed to get GI cap device path: %v", err)
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}
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ciCap := nvcaps.NewComputeInstanceCap(minor, gi, ci)
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ciCapDevicePath, err := migCaps.GetCapDevicePath(ciCap)
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if err != nil {
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return nil, fmt.Errorf("failed to get CI cap device path: %v", err)
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}
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deviceNodes := discover.NewCharDeviceDiscoverer(
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logger,
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[]string{
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parentPath,
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giCapDevicePath,
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ciCapDevicePath,
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},
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root,
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)
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return deviceNodes, nil
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}
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