netdev - Re: [PATCH V1 mlx5-next 13/13] vfio/mlx5: Trap device RESET and update state accordingly

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Message-ID: <cae3309e-4175-b134-c1f6-5ec02f352078@nvidia.com>
Date:   Thu, 14 Oct 2021 12:18:30 +0300
From:   Yishai Hadas <yishaih@...dia.com>
To:     Jason Gunthorpe <jgg@...dia.com>, <alex.williamson@...hat.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 V1 mlx5-next 13/13] vfio/mlx5: Trap device RESET and
 update state accordingly

On 10/13/2021 9:06 PM, Jason Gunthorpe wrote:
> On Wed, Oct 13, 2021 at 12:47:07PM +0300, Yishai Hadas wrote:
>> Trap device RESET and update state accordingly, it's done by registering
>> the matching callbacks.
>>
>> Signed-off-by: Yishai Hadas <yishaih@...dia.com>
>> Signed-off-by: Leon Romanovsky <leonro@...dia.com>
>>   drivers/vfio/pci/mlx5/main.c | 17 ++++++++++++++++-
>>   1 file changed, 16 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/vfio/pci/mlx5/main.c b/drivers/vfio/pci/mlx5/main.c
>> index e36302b444a6..8fe44ed13552 100644
>> +++ b/drivers/vfio/pci/mlx5/main.c
>> @@ -613,6 +613,19 @@ static const struct vfio_device_ops mlx5vf_pci_ops = {
>>   	.match = vfio_pci_core_match,
>>   };
>>   
>> +static void mlx5vf_reset_done(struct vfio_pci_core_device *core_vdev)
>> +{
>> +	struct mlx5vf_pci_core_device *mvdev = container_of(
>> +			core_vdev, struct mlx5vf_pci_core_device,
>> +			core_device);
>> +
>> +	mvdev->vmig.vfio_dev_state = VFIO_DEVICE_STATE_RUNNING;
> This should hold the state mutex too
>
Thanks Jason, I'll add as part of V2.

Alex,

Any feedback from your side before that we'll send V2 ?

We already got ACK for the PCI patches, there are some minor changes to 
be done so far.

Thanks,

Yishai