From: "Michael S. Tsirkin" <mst@redhat.com>
To: Parav Pandit <parav@nvidia.com>
Cc: Max Gurtovoy <mgurtovoy@nvidia.com>,
"virtio-comment@lists.oasis-open.org"
<virtio-comment@lists.oasis-open.org>,
"cohuck@redhat.com" <cohuck@redhat.com>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"jasowang@redhat.com" <jasowang@redhat.com>,
Shahaf Shuler <shahafs@nvidia.com>, Oren Duer <oren@nvidia.com>,
"stefanha@redhat.com" <stefanha@redhat.com>
Subject: Re: [PATCH 2/5] Introduce VIRTIO_F_ADMIN_VQ_INDIRECT_DESC/VIRTIO_F_ADMIN_VQ_IN_ORDER
Date: Tue, 18 Jan 2022 05:38:46 -0500 [thread overview]
Message-ID: <20220118052715-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <PH0PR12MB54817CAD287BCA267504C16FDC589@PH0PR12MB5481.namprd12.prod.outlook.com>
On Tue, Jan 18, 2022 at 07:30:34AM +0000, Parav Pandit wrote:
> An unrelated command to AQ in Jason's proposal [1] is about " The management driver MUST create a managed device by allocating".
> We see that creator of the subfunction is often not the only entity managing it.
> They being same in new era finding less and less users.
> So this piece needs more discussion whenever we address that.
>
> [1] https://lists.oasis-open.org/archives/virtio-comment/202108/msg00136.html
This reminds me. How do AQ commands interact with VF lifecycle?
E.g. can one change number of vectors for an active VF?
Need to specify this.
Also, I started worrying about compatibility here.
Let's say the msix capability in a VF specifies 16 vectors.
Can PF specify 32? If yes how will driver program them?
Can PF specify 8? If yes how do we make sure driver does not
attempt to use 16? And what happens if it does?
Again, something to address.
--
MST
next prev parent reply other threads:[~2022-01-18 10:38 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-13 14:50 [PATCH v1 0/5] VIRTIO: Provision maximum MSI-X vectors for a VF Max Gurtovoy
2022-01-13 14:50 ` [PATCH 1/5] Add virtio Admin Virtqueue specification Max Gurtovoy
2022-01-13 17:53 ` Michael S. Tsirkin
2022-01-17 9:56 ` Max Gurtovoy
2022-01-17 21:30 ` Michael S. Tsirkin
2022-01-18 3:22 ` Parav Pandit
2022-01-18 6:17 ` Michael S. Tsirkin
2022-01-18 7:57 ` Parav Pandit
2022-01-18 8:05 ` Michael S. Tsirkin
2022-01-18 8:23 ` Parav Pandit
2022-01-18 10:26 ` Michael S. Tsirkin
2022-01-18 10:30 ` Parav Pandit
2022-01-18 10:41 ` Michael S. Tsirkin
2022-01-19 3:04 ` Jason Wang
2022-01-19 8:11 ` Michael S. Tsirkin
2022-01-25 3:35 ` Jason Wang
2022-01-17 14:12 ` Parav Pandit
2022-01-17 22:03 ` Michael S. Tsirkin
2022-01-18 3:36 ` Parav Pandit
2022-01-18 7:07 ` Michael S. Tsirkin
2022-01-18 7:14 ` Parav Pandit
2022-01-18 7:20 ` Michael S. Tsirkin
2022-01-19 11:33 ` Max Gurtovoy
2022-01-19 12:21 ` Parav Pandit
2022-01-19 14:47 ` Max Gurtovoy
2022-01-19 15:38 ` Michael S. Tsirkin
2022-01-19 15:47 ` Max Gurtovoy
2022-01-13 14:51 ` [PATCH 2/5] Introduce VIRTIO_F_ADMIN_VQ_INDIRECT_DESC/VIRTIO_F_ADMIN_VQ_IN_ORDER Max Gurtovoy
2022-01-13 15:33 ` Michael S. Tsirkin
2022-01-13 17:07 ` Max Gurtovoy
2022-01-13 17:25 ` Michael S. Tsirkin
2022-01-17 13:59 ` Parav Pandit
2022-01-17 22:14 ` Michael S. Tsirkin
2022-01-18 4:44 ` Parav Pandit
2022-01-18 6:23 ` Michael S. Tsirkin
2022-01-18 6:32 ` Parav Pandit
2022-01-18 6:54 ` Michael S. Tsirkin
2022-01-18 7:07 ` Parav Pandit
2022-01-18 7:12 ` Michael S. Tsirkin
2022-01-18 7:30 ` Parav Pandit
2022-01-18 7:40 ` Michael S. Tsirkin
2022-01-19 4:21 ` Jason Wang
2022-01-19 9:30 ` Michael S. Tsirkin
2022-01-25 3:39 ` Jason Wang
2022-01-18 10:38 ` Michael S. Tsirkin [this message]
2022-01-18 10:50 ` Parav Pandit
2022-01-18 15:09 ` Michael S. Tsirkin
2022-01-18 17:17 ` Parav Pandit
2022-01-19 7:20 ` Michael S. Tsirkin
2022-01-19 8:15 ` [virtio-dev] " Parav Pandit
2022-01-19 8:21 ` Michael S. Tsirkin
2022-01-19 10:10 ` Parav Pandit
2022-01-19 16:40 ` Michael S. Tsirkin
2022-01-19 17:07 ` Parav Pandit
2022-01-18 7:13 ` Michael S. Tsirkin
2022-01-18 7:21 ` Parav Pandit
2022-01-18 7:37 ` Michael S. Tsirkin
2022-01-19 4:03 ` Jason Wang
2022-01-19 4:48 ` Parav Pandit
2022-01-19 20:25 ` Parav Pandit
2022-01-25 3:45 ` Jason Wang
2022-01-25 4:07 ` Parav Pandit
2022-01-25 3:29 ` Jason Wang
2022-01-25 3:52 ` Parav Pandit
2022-01-25 10:59 ` Max Gurtovoy
2022-01-25 12:09 ` Michael S. Tsirkin
2022-01-26 13:29 ` Parav Pandit
2022-01-26 14:11 ` Michael S. Tsirkin
2022-01-27 3:49 ` Parav Pandit
2022-01-27 13:05 ` Michael S. Tsirkin
2022-01-27 13:25 ` [virtio-dev] " Parav Pandit
2022-01-28 4:35 ` Jason Wang
2022-01-26 7:03 ` Jason Wang
2022-01-26 9:27 ` Max Gurtovoy
2022-01-26 9:34 ` Jason Wang
2022-01-26 9:45 ` Max Gurtovoy
2022-01-27 3:46 ` Jason Wang
2022-01-26 5:04 ` Jason Wang
2022-01-26 5:26 ` Parav Pandit
2022-01-26 5:45 ` Jason Wang
2022-01-26 5:58 ` Parav Pandit
2022-01-26 6:06 ` Jason Wang
2022-01-26 6:24 ` Parav Pandit
2022-01-26 6:54 ` Jason Wang
2022-01-26 8:09 ` Parav Pandit
2022-01-26 9:07 ` Jason Wang
2022-01-26 9:47 ` Parav Pandit
2022-01-13 14:51 ` [PATCH 3/5] virtio-blk: add support for VIRTIO_F_ADMIN_VQ Max Gurtovoy
2022-01-13 18:24 ` Michael S. Tsirkin
2022-01-13 14:51 ` [PATCH 4/5] virtio-net: " Max Gurtovoy
2022-01-13 17:56 ` Michael S. Tsirkin
2022-01-16 9:47 ` Max Gurtovoy
2022-01-16 16:45 ` Michael S. Tsirkin
2022-01-17 14:07 ` Parav Pandit
2022-01-17 22:22 ` Michael S. Tsirkin
2022-01-18 2:18 ` Jason Wang
2022-01-18 5:25 ` Michael S. Tsirkin
2022-01-19 4:16 ` Jason Wang
2022-01-19 9:26 ` Michael S. Tsirkin
2022-01-25 3:53 ` Jason Wang
2022-01-25 7:19 ` Michael S. Tsirkin
2022-01-26 5:49 ` Jason Wang
2022-01-26 7:02 ` Michael S. Tsirkin
2022-01-26 7:10 ` Jason Wang
2022-01-13 14:51 ` [PATCH 5/5] Add support for dynamic MSI-X vector mgmt for VFs Max Gurtovoy
2022-01-13 18:20 ` Michael S. Tsirkin
2022-01-18 10:38 ` Michael S. Tsirkin
2022-01-13 18:32 ` [PATCH v1 0/5] VIRTIO: Provision maximum MSI-X vectors for a VF Michael S. Tsirkin
2022-01-17 10:00 ` Shahaf Shuler
2022-01-17 21:41 ` Michael S. Tsirkin
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