netdev - Re: [PATCH V2 mlx5-next 14/14] vfio/mlx5: Use its own PCI reset

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Message-ID: <36fffe2a-cc37-7f65-1a99-558d24fce837@nvidia.com>
Date:   Thu, 21 Oct 2021 13:39:06 +0300
From:   Yishai Hadas <yishaih@...dia.com>
To:     Alex Williamson <alex.williamson@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>
CC:     <bhelgaas@...gle.com>, <saeedm@...dia.com>,
        <linux-pci@...r.kernel.org>, <kvm@...r.kernel.org>,
        <netdev@...r.kernel.org>, <kuba@...nel.org>, <leonro@...dia.com>,
        <kwankhede@...dia.com>, <mgurtovoy@...dia.com>, <maorg@...dia.com>
Subject: Re: [PATCH V2 mlx5-next 14/14] vfio/mlx5: Use its own PCI reset_done
 error handler

On 10/20/2021 8:45 PM, Alex Williamson wrote:
> However, regardless of the migration recovery strategy, userspace needs
> a means to get the device back into an initial state in a deterministic
> way without closing and re-opening the device (or polling for an
> arbitrary length of time).  That's the minimum viable product here.
> Thanks,
>
> Alex
>

OK, in V3 I'll use the algorithm that Jason has suggested in this mail 
thread to let things be done in a
deterministic way without using a WQ.

Thanks,
Yishai