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From: Kenny Ho <y2kenny@gmail.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Alex Deucher <alexdeucher@gmail.com>,
	Song Liu <songliubraving@fb.com>,
	Andrii Nakryiko <andriin@fb.com>,
	DRI Development <dri-devel@lists.freedesktop.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Kenny Ho <Kenny.Ho@amd.com>,
	"open list:CONTROL GROUP (CGROUP)" <cgroups@vger.kernel.org>,
	Brian Welty <brian.welty@intel.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Alexei Starovoitov <ast@kernel.org>,
	amd-gfx list <amd-gfx@lists.freedesktop.org>,
	Martin KaFai Lau <kafai@fb.com>,
	Linux-Fsdevel <linux-fsdevel@vger.kernel.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Network Development <netdev@vger.kernel.org>,
	KP Singh <kpsingh@chromium.org>, Yonghong Song <yhs@fb.com>,
	bpf <bpf@vger.kernel.org>, Dave Airlie <airlied@gmail.com>,
	Alexei Starovoitov <alexei.starovoitov@gmail.com>,
	Alex Deucher <alexander.deucher@amd.com>
Subject: Re: [RFC] Add BPF_PROG_TYPE_CGROUP_IOCTL
Date: Fri, 7 May 2021 13:04:39 -0400	[thread overview]
Message-ID: <CAOWid-fRgjuY46KA-HBbEfhfwsWvDyhkp+iwZq=wA1h+Uix32g@mail.gmail.com> (raw)
In-Reply-To: <YJVwtS9XJlogZRqv@phenom.ffwll.local>

On Fri, May 7, 2021 at 12:54 PM Daniel Vetter <daniel@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

  reply	other threads:[~2021-05-07 17:04 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-07 15:23 [RFC] Add BPF_PROG_TYPE_CGROUP_IOCTL Kenny Ho
2020-11-02 19:23 ` Kenny Ho
2020-11-03  5:32   ` Alexei Starovoitov
2020-11-03  5:39     ` Kenny Ho
2020-11-03  5:42       ` Alexei Starovoitov
2020-11-03 19:19         ` Kenny Ho
2020-11-03 21:04           ` Alexei Starovoitov
2020-11-03 22:57             ` Kenny Ho
2020-11-03 23:28               ` Alexei Starovoitov
2021-02-01 14:49                 ` Daniel Vetter
2021-02-01 16:51                   ` Kenny Ho
2021-02-03 11:09                     ` Daniel Vetter
2021-02-03 19:01                       ` Kenny Ho
2021-02-05 13:49                         ` Daniel Vetter
2021-05-07  2:06                           ` Kenny Ho
2021-05-07  8:59                             ` Daniel Vetter
2021-05-07 15:33                               ` Kenny Ho
2021-05-07 16:13                                 ` Daniel Vetter
2021-05-07 16:19                                   ` Alex Deucher
2021-05-07 16:26                                     ` Daniel Vetter
2021-05-07 16:31                                       ` Alex Deucher
2021-05-07 16:50                                         ` Alex Deucher
2021-05-07 16:54                                           ` Daniel Vetter
2021-05-07 17:04                                             ` Kenny Ho [this message]
2021-05-07 19:33                                             ` Tejun Heo
2021-05-07 19:55                                               ` Alex Deucher
2021-05-07 20:59                                                 ` Tejun Heo
2021-05-07 22:30                                                   ` Alex Deucher
2021-05-07 23:45                                                     ` Tejun Heo
2021-05-11 15:48                                                       ` Alex Deucher

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