Discussion of the implementations of VIRTIO specification
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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: Max Gurtovoy <mgurtovoy@nvidia.com>,
	virtio-comment@lists.oasis-open.org,
	Cornelia Huck <cohuck@redhat.com>,
	Virtio-Dev <virtio-dev@lists.oasis-open.org>,
	Oren Duer <oren@nvidia.com>, Parav Pandit <parav@nvidia.com>,
	Shahaf Shuler <shahafs@nvidia.com>, Ariel Adam <aadam@redhat.com>,
	virtio@lists.oasis-open.org, eperezma <eperezma@redhat.com>
Subject: Re: [PATCH v6 1/5] Introduce device group
Date: Wed, 3 Aug 2022 02:43:49 -0400	[thread overview]
Message-ID: <20220803024231-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <CACGkMEtgghEpPk=eE4z=5QiGTW42768i4729KR0-+ThHaQE3bA@mail.gmail.com>

On Wed, Aug 03, 2022 at 12:44:38PM +0800, Jason Wang wrote:
> > A VF now is a member of a SRIOV and SIOV type groups and we
> > can use type to distinguish between these.
> >
> > We should probably be explicit that each of these groups has to
> > have a distinct group type then.
> >
> > And this raises the question: different types have different
> > capabilities. So let's say admin queue is used to both
> > control features for SRIOV VFs and to create SIOV SFs.
> 
> I don't get how the admin queue can be used to control VF features
> considering VF has its capabilities. (SR-IOV lacks the ability to
> provision a single VF).

I mean, VF exists, but it does not have to consume lots of resources.
We can if we want to require that drivers only attach to VFs which have
been enabled through a special command.

-- 
MST


  parent reply	other threads:[~2022-08-03  6:43 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-31 15:43 [PATCH v6 0/5] Introduce device group and device management Max Gurtovoy
2022-07-31 15:43 ` [PATCH v6 1/5] Introduce device group Max Gurtovoy
2022-07-31 20:38   ` Michael S. Tsirkin
2022-07-31 20:42   ` Michael S. Tsirkin
2022-07-31 21:19   ` Michael S. Tsirkin
2022-08-02 13:41   ` Michael S. Tsirkin
2022-08-03  4:44     ` Jason Wang
2022-08-03  6:10       ` Michael S. Tsirkin
2022-08-03  8:04         ` Jason Wang
2022-08-03 12:33           ` Michael S. Tsirkin
2022-08-04  2:08             ` Jason Wang
2022-08-04  6:17               ` Michael S. Tsirkin
2022-08-04  7:17                 ` Jason Wang
2022-08-03  6:43       ` Michael S. Tsirkin [this message]
2022-08-03 23:45     ` [virtio-comment] " Max Gurtovoy
2022-08-04  6:20       ` Michael S. Tsirkin
2022-07-31 15:43 ` [PATCH v6 2/5] Introduce admin command set Max Gurtovoy
2022-07-31 20:59   ` Michael S. Tsirkin
2022-07-31 23:56     ` [virtio-comment] " Max Gurtovoy
2022-07-31 15:43 ` [virtio-comment] [PATCH v6 3/5] Introduce virtio admin virtqueue Max Gurtovoy
2022-07-31 21:00   ` Michael S. Tsirkin
2022-07-31 23:07     ` Max Gurtovoy
2022-08-01  6:03       ` Michael S. Tsirkin
2022-07-31 15:43 ` [PATCH v6 4/5] Add admin_queue_index register to PCI common configuration structure Max Gurtovoy
2022-07-31 21:03   ` Michael S. Tsirkin
2022-08-01  0:11     ` Max Gurtovoy
2022-08-01  6:13       ` Michael S. Tsirkin
2022-08-04  0:01         ` [virtio-comment] " Max Gurtovoy
2022-08-04  6:26           ` Michael S. Tsirkin
2022-07-31 15:43 ` [PATCH v6 5/5] Introduce MGMT admin commands Max Gurtovoy
2022-07-31 21:16   ` Michael S. Tsirkin
2022-07-31 16:27 ` [PATCH v6 0/5] Introduce device group and device management Michael S. Tsirkin

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