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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Parav Pandit <parav@nvidia.com>
Cc: Cornelia Huck <cohuck@redhat.com>,
	"virtio-comment@lists.oasis-open.org"
	<virtio-comment@lists.oasis-open.org>,
	"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: [virtio-dev] Re: [PATCH v10 4/4] transport-pci: Introduce group legacy group member config region access
Date: Thu, 6 Jul 2023 15:42:53 -0400	[thread overview]
Message-ID: <20230706154002-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <PH0PR12MB5481074A79C630384382CB20DC2CA@PH0PR12MB5481.namprd12.prod.outlook.com>

On Thu, Jul 06, 2023 at 07:00:22PM +0000, Parav Pandit wrote:
> 
> > From: Michael S. Tsirkin <mst@redhat.com>
> > Sent: Thursday, July 6, 2023 2:57 PM
> 
> > > I am just saying to keep things simple. Let driver choose any entry it wants to
> > use instead of device deciding on priority and hints etc.
> > 
> > Let's say driver can support both types which to choose?
> Any entry that driver likes.
> 
> > As the order is there anyway, why not just prescribe entries are used in order?
> 
> I don't see any value in defining any order. It is an array of entries not a priority list.

I think we are losing out. For example I can see how
access through member would be preferable for ordering reasons.
However device might still allow access through PF for cases
where driver can't access VF.

But I don't see any configs where leaving this to the driver's
discretion is preferable. If you see one let me know.

-- 
MST


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  reply	other threads:[~2023-07-06 19:43 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-06  4:17 [virtio-dev] [PATCH v10 0/4] admin: Access legacy registers using admin commands Parav Pandit
2023-07-06  4:17 ` [virtio-dev] [PATCH v10 1/4] admin: Split opcode table rows with a line Parav Pandit
2023-07-06  4:17 ` [virtio-dev] [PATCH v10 2/4] admin: Fix section numbering Parav Pandit
2023-07-06 13:39   ` [virtio-dev] " Cornelia Huck
2023-07-06  4:17 ` [virtio-dev] [PATCH v10 3/4] admin: Add group member legacy register access commands Parav Pandit
2023-07-06 16:12   ` [virtio-dev] " Cornelia Huck
2023-07-06 16:16     ` [virtio-dev] " Parav Pandit
2023-07-06  4:17 ` [virtio-dev] [PATCH v10 4/4] transport-pci: Introduce group legacy group member config region access Parav Pandit
2023-07-06 16:28   ` [virtio-dev] " Cornelia Huck
2023-07-06 16:33     ` [virtio-dev] " Parav Pandit
2023-07-06 16:42       ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 16:58         ` [virtio-dev] " Parav Pandit
2023-07-06 17:33           ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 17:47             ` [virtio-dev] " Parav Pandit
2023-07-06 18:06               ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 18:16                 ` [virtio-dev] " Parav Pandit
2023-07-06 18:48                   ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 18:53                     ` [virtio-dev] " Parav Pandit
2023-07-06 18:56                       ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 19:00                         ` [virtio-dev] " Parav Pandit
2023-07-06 19:42                           ` Michael S. Tsirkin [this message]
2023-07-06 20:21                             ` Parav Pandit
2023-07-06 20:28                               ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 20:35                                 ` [virtio-dev] " Parav Pandit
2023-07-06 20:41                                   ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 20:43                                     ` [virtio-dev] " Parav Pandit
2023-07-07  8:12                                       ` [virtio-dev] Re: [virtio-comment] " Cornelia Huck
2023-07-07  8:32                                         ` Michael S. Tsirkin
2023-07-06 17:38           ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 16:47       ` [virtio-dev] " Cornelia Huck
2023-07-06 16:52         ` Parav Pandit
2023-07-06 16:39     ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 16:45       ` [virtio-dev] " Parav Pandit
2023-07-06 16:50         ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 16:54           ` [virtio-dev] " Parav Pandit
2023-07-06 19:00   ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 19:07     ` [virtio-dev] RE: [virtio-comment] " Parav Pandit
2023-07-06 19:59       ` [virtio-dev] " Michael S. Tsirkin
2023-07-06 20:28         ` [virtio-dev] " Parav Pandit

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