From: Jason Gunthorpe <jgg@nvidia.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: Yishai Hadas <yishaih@nvidia.com>,
alex.williamson@redhat.com, bhelgaas@google.com,
saeedm@nvidia.com, linux-pci@vger.kernel.org,
kvm@vger.kernel.org, netdev@vger.kernel.org, kuba@kernel.org,
leonro@nvidia.com, kwankhede@nvidia.com, mgurtovoy@nvidia.com,
maorg@nvidia.com
Subject: Re: [PATCH V6 mlx5-next 10/15] vfio: Remove migration protocol v1
Date: Tue, 1 Feb 2022 10:29:30 -0400 [thread overview]
Message-ID: <20220201142930.GG1786498@nvidia.com> (raw)
In-Reply-To: <87k0eey8ih.fsf@redhat.com>
On Tue, Feb 01, 2022 at 03:19:18PM +0100, Cornelia Huck wrote:
> - remove the current QEMU implementation of vfio migration for 7.0 (it's
> experimental, and if there's anybody experimenting with that, they can
> stay on 6.2)
I think we went from "we clarified how the ABI works and made
something ABI compataible with qemu" to "let's delete the whole thing
from a released qemu" rather quickly..
To be clear this is still all logically compatible with the v1
interface, and we might, or might not, want to use the ABI compatible
version we already built out of tree to support the existing installed
base of qemu.
Dropping the whole thing seems to only make things worse for this
ecosystem, IMHO.
> (- also continue to get the documentation into good shape)
Which items do you see here?
> - have an RFC for QEMU that contains a provisional update of the
> relevant vfio headers so that we can discuss the QEMU side (and maybe
> shoot down any potential problems in the uapi before they are merged
> in the kernel)
This qemu patch is linked in the cover letter.
Jason
next prev parent reply other threads:[~2022-02-01 14:29 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-30 16:08 [PATCH V6 mlx5-next 00/15] Add mlx5 live migration driver and v2 migration protocol Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 01/15] PCI/IOV: Add pci_iov_vf_id() to get VF index Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 02/15] net/mlx5: Reuse exported virtfn index function call Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 03/15] net/mlx5: Disable SRIOV before PF removal Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 04/15] PCI/IOV: Add pci_iov_get_pf_drvdata() to allow VF reaching the drvdata of a PF Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 05/15] net/mlx5: Expose APIs to get/put the mlx5 core device Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 06/15] net/mlx5: Introduce migration bits and structures Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 07/15] vfio: Have the core code decode the VFIO_DEVICE_FEATURE ioctl Yishai Hadas
2022-01-31 23:41 ` Alex Williamson
2022-02-01 0:11 ` Jason Gunthorpe
2022-02-01 15:47 ` Alex Williamson
2022-02-01 15:49 ` Jason Gunthorpe
2022-01-30 16:08 ` [PATCH V6 mlx5-next 08/15] vfio: Define device migration protocol v2 Yishai Hadas
2022-01-31 23:43 ` Alex Williamson
2022-02-01 0:31 ` Jason Gunthorpe
2022-02-01 17:04 ` Alex Williamson
2022-02-01 18:36 ` Jason Gunthorpe
2022-02-01 21:49 ` Alex Williamson
2022-02-02 0:24 ` Jason Gunthorpe
2022-02-02 23:36 ` Alex Williamson
2022-02-03 14:17 ` Jason Gunthorpe
2022-02-04 12:12 ` Cornelia Huck
2022-02-03 15:51 ` Tarun Gupta (SW-GPU)
2022-02-01 12:06 ` Cornelia Huck
2022-02-01 12:10 ` Jason Gunthorpe
2022-02-01 12:18 ` Cornelia Huck
2022-02-01 12:27 ` Jason Gunthorpe
2022-01-30 16:08 ` [PATCH V6 mlx5-next 09/15] vfio: Extend the device migration protocol with RUNNING_P2P Yishai Hadas
2022-02-01 11:54 ` Cornelia Huck
2022-02-01 12:13 ` Jason Gunthorpe
2022-02-01 18:31 ` Alex Williamson
2022-02-01 18:53 ` Jason Gunthorpe
2022-02-01 19:13 ` Alex Williamson
2022-02-01 19:50 ` Jason Gunthorpe
2022-02-02 23:54 ` Alex Williamson
2022-02-03 14:22 ` Jason Gunthorpe
2022-01-30 16:08 ` [PATCH V6 mlx5-next 10/15] vfio: Remove migration protocol v1 Yishai Hadas
2022-02-01 11:23 ` Cornelia Huck
2022-02-01 12:13 ` Jason Gunthorpe
2022-02-01 12:39 ` Cornelia Huck
2022-02-01 12:54 ` Jason Gunthorpe
2022-02-01 13:26 ` Cornelia Huck
2022-02-01 13:52 ` Jason Gunthorpe
2022-02-01 14:19 ` Cornelia Huck
2022-02-01 14:29 ` Jason Gunthorpe [this message]
2022-02-02 11:34 ` Cornelia Huck
2022-02-02 12:22 ` Jason Gunthorpe
2022-02-01 23:01 ` Alex Williamson
2022-02-02 0:28 ` Jason Gunthorpe
2022-02-02 11:38 ` Cornelia Huck
2022-01-30 16:08 ` [PATCH V6 mlx5-next 11/15] vfio/mlx5: Expose migration commands over mlx5 device Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 12/15] vfio/mlx5: Implement vfio_pci driver for mlx5 devices Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 13/15] vfio/pci: Expose vfio_pci_core_aer_err_detected() Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 14/15] vfio/mlx5: Use its own PCI reset_done error handler Yishai Hadas
2022-01-30 16:08 ` [PATCH V6 mlx5-next 15/15] vfio: Extend the device migration protocol with PRE_COPY Yishai Hadas
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