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From: Parav Pandit <parav@nvidia.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "virtio-comment@lists.oasis-open.org"
	<virtio-comment@lists.oasis-open.org>,
	"cohuck@redhat.com" <cohuck@redhat.com>,
	"david.edmondson@oracle.com" <david.edmondson@oracle.com>,
	"virtio-dev@lists.oasis-open.org"
	<virtio-dev@lists.oasis-open.org>,
	"sburla@marvell.com" <sburla@marvell.com>,
	"jasowang@redhat.com" <jasowang@redhat.com>,
	Yishai Hadas <yishaih@nvidia.com>,
	Maor Gottlieb <maorg@nvidia.com>,
	Shahaf Shuler <shahafs@nvidia.com>
Subject: RE: [virtio-dev] Re: [PATCH v6 4/4] transport-pci: Introduce group legacy group member config region access
Date: Wed, 21 Jun 2023 01:09:40 +0000	[thread overview]
Message-ID: <PH0PR12MB548183AC0E47AA8BFE76C042DC5DA@PH0PR12MB5481.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20230620060110-mutt-send-email-mst@kernel.org>



> From: Michael S. Tsirkin <mst@redhat.com>
> Sent: Tuesday, June 20, 2023 6:22 AM
> 
> On Tue, Jun 20, 2023 at 12:14:16AM +0000, Parav Pandit wrote:
> >
> >
> > > From: virtio-dev@lists.oasis-open.org
> > > <virtio-dev@lists.oasis-open.org> On Behalf Of Michael S. Tsirkin
> > > Sent: Monday, June 19, 2023 1:46 PM
> >
> > > These devices have a legacy interface yes?
> > Yes. partially.
> >
> > > So they should be transitional to avoid breaking assumption.
> > >
> > >
> > > But they are not *exactly*
> > > in that they don't have a transitional device ID.
> > >
> > Right. They do not have transitional device ID.
> 
> I was trying to think whether we need a conformance statement stating so. I
> guess this is up to the device?
> Then let's make it clear. Something like:
> 	For the SR-IOV group type,
> 	the owner device supporting legacy configuration access commands
> 	[assuming this is the term - do we define it somewhere? or just
> 	list the commands]
This term is largely defined as section name currently.

> 	MAY follow the rules for the PCI Device ID, Revision ID
> 	and Subsystem Device ID for the non-transitional devices
> 	documented in
> 	{Virtio Transport Options / Virtio Over PCI Bus / PCI Device Discovery}
> 
> or do you want to make it a SHOULD?
>
SHOULD seems fine to me as one cannot build PCI VF hw practically with IOBAR anyway.
So better to extended above line as,

For the SR-IOV group type, the owner device ... and member device SHOULD fllow the rules for...
 
> 
> > > At least the device id section needs extra text then to explain this?
> > >
> > We don't modify any of the transitional device attributes.
> > In respective conformance section, it is described what requirements of
> legacy interface to follow.
> > > Or do you just want to make them have transitional ID?
> > Don't want to do that.
> > Non transitional device id with the extension is just fine.


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  reply	other threads:[~2023-06-21  1:09 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-13 17:30 [virtio-dev] [PATCH v6 0/4] admin: Introduce legacy registers access using AQ Parav Pandit
2023-06-13 17:30 ` [virtio-dev] [PATCH v6 1/4] admin: Split opcode table rows with a line Parav Pandit
2023-06-13 17:30 ` [virtio-dev] [PATCH v6 2/4] admin: Fix section numbering Parav Pandit
2023-06-13 17:30 ` [virtio-dev] [PATCH v6 3/4] admin: Add group member legacy register access commands Parav Pandit
2023-06-19 16:20   ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 16:29     ` [virtio-dev] " Parav Pandit
2023-06-19 16:40       ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 16:45         ` [virtio-dev] " Parav Pandit
2023-06-19 17:10           ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 17:21             ` Parav Pandit
2023-06-19 17:33               ` Michael S. Tsirkin
2023-06-19 17:38                 ` Parav Pandit
2023-06-13 17:30 ` [virtio-dev] [PATCH v6 4/4] transport-pci: Introduce group legacy group member config region access Parav Pandit
2023-06-19 16:16   ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 21:07     ` [virtio-dev] " Parav Pandit
2023-06-21 20:05       ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-06-21 20:22         ` [virtio-dev] " Parav Pandit
2023-06-21 20:31           ` [virtio-dev] " Michael S. Tsirkin
2023-06-21 20:43             ` [virtio-dev] " Parav Pandit
2023-06-19 16:37   ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 16:39     ` [virtio-dev] " Parav Pandit
2023-06-19 17:19       ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 17:26         ` [virtio-dev] " Parav Pandit
2023-06-19 17:37           ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 17:45             ` [virtio-dev] " Parav Pandit
2023-06-19 17:57               ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 18:07                 ` [virtio-dev] " Parav Pandit
2023-06-20 14:12                   ` Parav Pandit
2023-06-21 15:50                     ` Parav Pandit
2023-06-21 15:56                       ` [virtio-dev] " Michael S. Tsirkin
2023-06-21 16:01                         ` [virtio-dev] " Parav Pandit
2023-06-21 19:43                           ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-06-21 20:04                             ` [virtio-dev] " Parav Pandit
2023-06-21 20:08                               ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 18:00               ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 18:12                 ` [virtio-dev] " Parav Pandit
2023-06-21 19:47                   ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-06-19 17:04   ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 17:11     ` Parav Pandit
2023-06-19 17:26       ` Michael S. Tsirkin
2023-06-19 17:35         ` Parav Pandit
2023-06-19 17:46           ` Michael S. Tsirkin
2023-06-20  0:14             ` Parav Pandit
2023-06-20 10:21               ` Michael S. Tsirkin
2023-06-21  1:09                 ` Parav Pandit [this message]
2023-06-21  5:05                   ` Michael S. Tsirkin
2023-06-19 12:38 ` [virtio-dev] RE: [PATCH v6 0/4] admin: Introduce legacy registers access using AQ Parav Pandit
2023-06-19 15:18   ` [virtio-dev] " Michael S. Tsirkin
2023-06-19 15:58     ` [virtio-dev] " Parav Pandit
2023-06-19 16:28 ` [virtio-dev] " Michael S. Tsirkin

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