diff options
Diffstat (limited to 'vendor/github.com/containerd/cgroups/rdma.go')
-rw-r--r-- | vendor/github.com/containerd/cgroups/rdma.go | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/vendor/github.com/containerd/cgroups/rdma.go b/vendor/github.com/containerd/cgroups/rdma.go deleted file mode 100644 index 4f423d33a..000000000 --- a/vendor/github.com/containerd/cgroups/rdma.go +++ /dev/null @@ -1,153 +0,0 @@ -/* - Copyright The containerd 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 cgroups - -import ( - "io/ioutil" - "math" - "os" - "path/filepath" - "strconv" - "strings" - - specs "github.com/opencontainers/runtime-spec/specs-go" -) - -type rdmaController struct { - root string -} - -func (p *rdmaController) Name() Name { - return Rdma -} - -func (p *rdmaController) Path(path string) string { - return filepath.Join(p.root, path) -} - -func NewRdma(root string) *rdmaController { - return &rdmaController{ - root: filepath.Join(root, string(Rdma)), - } -} - -func createCmdString(device string, limits *specs.LinuxRdma) string { - var cmdString string - - cmdString = device - if limits.HcaHandles != nil { - cmdString = cmdString + " " + "hca_handle=" + strconv.FormatUint(uint64(*limits.HcaHandles), 10) - } - - if limits.HcaObjects != nil { - cmdString = cmdString + " " + "hca_object=" + strconv.FormatUint(uint64(*limits.HcaObjects), 10) - } - return cmdString -} - -func (p *rdmaController) Create(path string, resources *specs.LinuxResources) error { - if err := os.MkdirAll(p.Path(path), defaultDirPerm); err != nil { - return err - } - - for device, limit := range resources.Rdma { - if device != "" && (limit.HcaHandles != nil || limit.HcaObjects != nil) { - return ioutil.WriteFile( - filepath.Join(p.Path(path), "rdma.max"), - []byte(createCmdString(device, &limit)), - defaultFilePerm, - ) - } - } - return nil -} - -func (p *rdmaController) Update(path string, resources *specs.LinuxResources) error { - return p.Create(path, resources) -} - -func parseRdmaKV(raw string, entry *RdmaEntry) { - var value uint64 - var err error - - parts := strings.Split(raw, "=") - switch len(parts) { - case 2: - if parts[1] == "max" { - value = math.MaxUint32 - } else { - value, err = parseUint(parts[1], 10, 32) - if err != nil { - return - } - } - if parts[0] == "hca_handle" { - entry.HcaHandles = uint32(value) - } else if parts[0] == "hca_object" { - entry.HcaObjects = uint32(value) - } - } -} - -func toRdmaEntry(strEntries []string) []*RdmaEntry { - var rdmaEntries []*RdmaEntry - for i := range strEntries { - parts := strings.Fields(strEntries[i]) - switch len(parts) { - case 3: - entry := new(RdmaEntry) - entry.Device = parts[0] - parseRdmaKV(parts[1], entry) - parseRdmaKV(parts[2], entry) - - rdmaEntries = append(rdmaEntries, entry) - default: - continue - } - } - return rdmaEntries -} - -func (p *rdmaController) Stat(path string, stats *Metrics) error { - - currentData, err := ioutil.ReadFile(filepath.Join(p.Path(path), "rdma.current")) - if err != nil { - return err - } - currentPerDevices := strings.Split(string(currentData), "\n") - - maxData, err := ioutil.ReadFile(filepath.Join(p.Path(path), "rdma.max")) - if err != nil { - return err - } - maxPerDevices := strings.Split(string(maxData), "\n") - - // If device got removed between reading two files, ignore returning - // stats. - if len(currentPerDevices) != len(maxPerDevices) { - return nil - } - - currentEntries := toRdmaEntry(currentPerDevices) - maxEntries := toRdmaEntry(maxPerDevices) - - stats.Rdma = &RdmaStat{ - Current: currentEntries, - Limit: maxEntries, - } - return nil -} |