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node-feature-discovery/source/cpu/coprocessor_ppc64le.go
Chandan Abhyankar d66096a491 cpu: support for detecting nx-gzip coprocessor feature
Nest accelerator gzip support for IBM Power systems.

Signed-off-by: Chandan Abhyankar <Chandan.Abhyankar@ibm.com>
2023-01-17 23:18:16 -08:00

43 lines
1.1 KiB
Go

//go:build ppc64le
// +build ppc64le
/*
Copyright 2023 The Kubernetes 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 cpu
import (
"k8s.io/klog/v2"
"os"
"sigs.k8s.io/node-feature-discovery/pkg/utils/hostpath"
"strconv"
)
/* Detect NX_GZIP */
func discoverCoprocessor() map[string]string {
features := make(map[string]string)
nxGzipPath := hostpath.SysfsDir.Path("devices/vio/ibm,compression-v1/nx_gzip_caps")
_, err := os.Stat(nxGzipPath)
if err != nil {
klog.V(5).Infof("Failed to detect nx_gzip for Nest Accelerator: %v", err)
} else {
features["nx_gzip"] = strconv.FormatBool(true)
}
return features
}