mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-24 13:05:17 +00:00
5145b0a4b6
This reverts commitb061446694, reversing changes made toc490baab63. Signed-off-by: Evan Lezar <elezar@nvidia.com>
86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
/**
|
|
# Copyright 2024 NVIDIA CORPORATION
|
|
#
|
|
# 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 config
|
|
|
|
type featureName string
|
|
|
|
const (
|
|
FeatureGDS = featureName("gds")
|
|
FeatureMOFED = featureName("mofed")
|
|
FeatureNVSWITCH = featureName("nvswitch")
|
|
FeatureGDRCopy = featureName("gdrcopy")
|
|
)
|
|
|
|
// features specifies a set of named features.
|
|
type features struct {
|
|
GDS *feature `toml:"gds,omitempty"`
|
|
MOFED *feature `toml:"mofed,omitempty"`
|
|
NVSWITCH *feature `toml:"nvswitch,omitempty"`
|
|
GDRCopy *feature `toml:"gdrcopy,omitempty"`
|
|
}
|
|
|
|
type feature bool
|
|
|
|
// IsEnabled checks whether a specified named feature is enabled.
|
|
// An optional list of environments to check for feature-specific environment
|
|
// variables can also be supplied.
|
|
func (fs features) IsEnabled(n featureName, in ...getenver) bool {
|
|
featureEnvvars := map[featureName]string{
|
|
FeatureGDS: "NVIDIA_GDS",
|
|
FeatureMOFED: "NVIDIA_MOFED",
|
|
FeatureNVSWITCH: "NVIDIA_NVSWITCH",
|
|
FeatureGDRCopy: "NVIDIA_GDRCOPY",
|
|
}
|
|
|
|
envvar := featureEnvvars[n]
|
|
switch n {
|
|
case FeatureGDS:
|
|
return fs.GDS.isEnabled(envvar, in...)
|
|
case FeatureMOFED:
|
|
return fs.MOFED.isEnabled(envvar, in...)
|
|
case FeatureNVSWITCH:
|
|
return fs.NVSWITCH.isEnabled(envvar, in...)
|
|
case FeatureGDRCopy:
|
|
return fs.GDRCopy.isEnabled(envvar, in...)
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// isEnabled checks whether a feature is enabled.
|
|
// If the enabled value is explicitly set, this is returned, otherwise the
|
|
// associated envvar is checked in the specified getenver for the string "enabled"
|
|
// A CUDA container / image can be passed here.
|
|
func (f *feature) isEnabled(envvar string, ins ...getenver) bool {
|
|
if f != nil {
|
|
return bool(*f)
|
|
}
|
|
if envvar == "" {
|
|
return false
|
|
}
|
|
for _, in := range ins {
|
|
if in.Getenv(envvar) == "enabled" {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
type getenver interface {
|
|
Getenv(string) string
|
|
}
|