If k8s label starts or ends with a non alphanumeric char, it is
ignored. This new split method cuts labels from the last alphanum
characters and adds a control character to the beginning of the next
chunk. The entity that uses these labels needs to then remove the
control character before concatenating the chunks.
Co-authored-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
Signed-off-by: Tuomas Katila <tuomas.katila@intel.com>
This adds a new label "gpu-numbers" for short numbered lists of
gpus, omitting "card" from the names. Also adds splitting of long
label values.
Similarly this adds a new label "pci-groups" for PCI groups. Grouping
can be controlled by env var GPU_PCI_GROUPING_LEVEL. The env var
dictates, how many pci-folder names need to match, in order for GPUs
to be considered to belong in a group.
Signed-off-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
GPU generation "gen" number is replaced in the capability files of
latest kernels with separate display, graphics, and media versions.
For compatibility with newer kernels, provide "gen" based on the new
labels (but without decimals), and for older kernel compatibility, new
labels based on the "gen".
Because different kernels match different items from the action map,
whole capability file will get parsed. Capability file parsing is
optimized by using prefix check instead of scanf.
"platform_gen" label is deprecated, and can be dropped whenever it
becomes inconvenient (lint complains about line count etc).
This changes the memory reading to be done through lmem_total_bytes
file instead of the addr_range file.
Signed-off-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
Add govet-fieldalignment to .golangci.yml
Fix errors that come from adding govet-fieldalignment
- by reordering the fields of structs
- by putting nolint:govet annotations
Signed-off-by: Hyeongju Johannes Lee <hyeongju.lee@intel.com>
Go 1.16 release notes announced the deprecation of io/ioutil [1]. It's easy
for us to move to use what is was recommended so just do it.
[1] https://golang.org/doc/go1.16#ioutil
Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>
This adds reading of the GPU memory amount from the sysfs. As a
fallback the environment variable GPU_MEMORY_OVERRIDE remains.
Another environment variable GPU_MEMORY_RESERVED can be used to
reserve a dedicated byte amount outside of kubernetes usage.
Signed-off-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
This adds an nfd-hook for the gpu-plugin, which will create labels
for the GPUs that can then be used for POD deployment purposes or
creation of GPU extended resources which allow then finer grained
GPU resource management.
The nfd-hook will install to the host system when the
intel-gpu-initcontainer is run. It is added into the plugin deployment
yaml.
Signed-off-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
