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Signed-off-by: wangjianyu.wjy <[email protected]>
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wangjianyu.wjy
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Nov 29, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| /* | ||
| Copyright 2022 The Koordinator Authors. | ||
| 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 rdma | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/containerd/nri/pkg/api" | ||
| "k8s.io/klog/v2" | ||
|
|
||
| ext "github.com/koordinator-sh/koordinator/apis/extension" | ||
| schedulingv1alpha1 "github.com/koordinator-sh/koordinator/apis/scheduling/v1alpha1" | ||
| "github.com/koordinator-sh/koordinator/pkg/koordlet/runtimehooks/hooks" | ||
| "github.com/koordinator-sh/koordinator/pkg/koordlet/runtimehooks/protocol" | ||
| rmconfig "github.com/koordinator-sh/koordinator/pkg/runtimeproxy/config" | ||
| ) | ||
|
|
||
| const ( | ||
| IBDevDir = "/dev/infiniband" | ||
| RDMACM = "/dev/infiniband/rdma_cm" | ||
| SysBusPci = "/sys/bus/pci/devices" | ||
| ) | ||
|
|
||
| type rdmaPlugin struct{} | ||
|
|
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| func (p *rdmaPlugin) Register(op hooks.Options) { | ||
| klog.V(5).Infof("register hook %v", "rdma device inject") | ||
| hooks.Register(rmconfig.PreCreateContainer, "rdma device inject", "inject NVIDIA_VISIBLE_DEVICES env into container", p.InjectDevice) | ||
| } | ||
|
|
||
| var singleton *rdmaPlugin | ||
|
|
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| func Object() *rdmaPlugin { | ||
| if singleton == nil { | ||
| singleton = &rdmaPlugin{} | ||
| } | ||
| return singleton | ||
| } | ||
|
|
||
| func (p *rdmaPlugin) InjectDevice(proto protocol.HooksProtocol) error { | ||
| containerCtx := proto.(*protocol.ContainerContext) | ||
| if containerCtx == nil { | ||
| return fmt.Errorf("container protocol is nil for plugin gpu") | ||
| } | ||
| containerReq := containerCtx.Request | ||
| alloc, err := ext.GetDeviceAllocations(containerReq.PodAnnotations) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| devices, ok := alloc[schedulingv1alpha1.RDMA] | ||
| if !ok || len(devices) == 0 { | ||
| klog.V(5).Infof("no rdma alloc info in pod anno, %s", containerReq.PodMeta.Name) | ||
| return nil | ||
| } | ||
| containerCtx.Response.AddContainerDevices = []*api.LinuxDevice{ | ||
| { | ||
| Path: RDMACM, | ||
| Type: "c", | ||
| FileMode: &api.OptionalFileMode{ | ||
| Value: 0666, | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
| for _, device := range devices { | ||
| for _, vf := range device.Extension.VirtualFunctions { | ||
| uverbsOfVF, err := getUVerbsViaPciAdd(vf.BusID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| containerCtx.Response.AddContainerDevices = append(containerCtx.Response.AddContainerDevices, | ||
| &api.LinuxDevice{ | ||
| Path: uverbsOfVF, | ||
| Type: "c", | ||
| FileMode: &api.OptionalFileMode{ | ||
| Value: 0666, | ||
| }, | ||
| }) | ||
| } | ||
| uverbs, err := getUVerbsViaPciAdd(device.ID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| containerCtx.Response.AddContainerDevices = append(containerCtx.Response.AddContainerDevices, | ||
| &api.LinuxDevice{ | ||
| Path: uverbs, | ||
| Type: "c", | ||
| FileMode: &api.OptionalFileMode{ | ||
| Value: 0666, | ||
| }, | ||
| }) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func getUVerbsViaPciAdd(pciAddress string) (string, error) { | ||
| pciDir := filepath.Join(SysBusPci, pciAddress, "infiniband_verbs") | ||
| files, err := os.ReadDir(pciDir) | ||
| if err != nil || len(files) == 0 { | ||
| klog.Errorf("fail read pciDir %v", err) | ||
| return "", fmt.Errorf("failed to get uverbs: %s", err.Error()) | ||
| } | ||
| return filepath.Join(IBDevDir, files[0].Name()), nil | ||
| } |
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