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Merge pull request #1670 from tkatila/xe-driver-support
GPU: Add support for the new xe KMD
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| // Copyright 2024 Intel 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 main | ||
|
|
||
| import ( | ||
| "slices" | ||
|
|
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| "github.com/intel/intel-device-plugins-for-kubernetes/cmd/internal/labeler" | ||
| "github.com/intel/intel-device-plugins-for-kubernetes/cmd/internal/pluginutils" | ||
| "k8s.io/klog/v2" | ||
| ) | ||
|
|
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| type DeviceProperties struct { | ||
| currentDriver string | ||
| drmDrivers map[string]bool | ||
| tileCounts []uint64 | ||
| isPfWithVfs bool | ||
| } | ||
|
|
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| type invalidTileCountErr struct { | ||
| error | ||
| } | ||
|
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| func newDeviceProperties() *DeviceProperties { | ||
| return &DeviceProperties{ | ||
| drmDrivers: make(map[string]bool), | ||
| } | ||
| } | ||
|
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| func (d *DeviceProperties) fetch(cardPath string) { | ||
| d.isPfWithVfs = pluginutils.IsSriovPFwithVFs(cardPath) | ||
|
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| d.tileCounts = append(d.tileCounts, labeler.GetTileCount(cardPath)) | ||
|
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| driverName, err := pluginutils.ReadDeviceDriver(cardPath) | ||
| if err != nil { | ||
| klog.Warningf("card (%s) doesn't have driver, using default: %s", cardPath, deviceTypeDefault) | ||
|
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| driverName = deviceTypeDefault | ||
| } | ||
|
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| d.currentDriver = driverName | ||
| d.drmDrivers[d.currentDriver] = true | ||
| } | ||
|
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| func (d *DeviceProperties) drmDriverCount() int { | ||
| return len(d.drmDrivers) | ||
| } | ||
|
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| func (d *DeviceProperties) driver() string { | ||
| return d.currentDriver | ||
| } | ||
|
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| func (d *DeviceProperties) monitorResource() string { | ||
| return d.currentDriver + monitorSuffix | ||
| } | ||
|
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| func (d *DeviceProperties) maxTileCount() (uint64, error) { | ||
| if len(d.tileCounts) == 0 { | ||
| return 0, invalidTileCountErr{} | ||
| } | ||
|
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| minCount := slices.Min(d.tileCounts) | ||
| maxCount := slices.Max(d.tileCounts) | ||
|
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| if minCount != maxCount { | ||
| klog.Warningf("Node's GPUs are heterogenous (min: %d, max: %d tiles)", minCount, maxCount) | ||
|
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| return 0, invalidTileCountErr{} | ||
| } | ||
|
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| return maxCount, nil | ||
| } |
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