[RFC] Add BPF_PROG_TYPE_CGROUP_IOCTL

[Kenny Ho]

On Fri, May 7, 2021 at 12:54 PM Daniel Vetter <daniel at ffwll.ch> wrote:
>
> SRIOV is kinda by design vendor specific. You set up the VF endpoint, it
> shows up, it's all hw+fw magic. Nothing for cgroups to manage here at all.
Right, so in theory you just use the device cgroup with the VF endpoints.

> All I meant is that for the container/cgroups world starting out with
> time-sharing feels like the best fit, least because your SRIOV designers
> also seem to think that's the best first cut for cloud-y computing.
> Whether it's virtualized or containerized is a distinction that's getting
> ever more blurry, with virtualization become a lot more dynamic and
> container runtimes als possibly using hw virtualization underneath.
I disagree.  By the same logic, the existence of CU mask would imply
it being the preferred way for sub-device control per process.

Kenny