lkml.org 
[lkml]   [2021]   [Jun]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] vdpa/mlx5: Clear vq ready indication upon device reset
From
Date

在 2021/6/2 下午4:59, Eli Cohen 写道:
> After device reset, the virtqueues are not ready so clear the ready
> field.
>
> Failing to do so can result in virtio_vdpa failing to load if the device
> was previously used by vhost_vdpa and the old values are ready.
> virtio_vdpa expects to find VQs in "not ready" state.
>
> Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
> Signed-off-by: Eli Cohen <elic@nvidia.com>


Acked-by: Jason Wang <jasowang@redhat.com>


> ---
> drivers/vdpa/mlx5/net/mlx5_vnet.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> index 02a05492204c..e8bc0842b44c 100644
> --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> @@ -862,6 +862,7 @@ static void destroy_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtq
> return;
> }
> umems_destroy(ndev, mvq);
> + mvq->ready = false;
> }
>
> static u32 get_rqpn(struct mlx5_vdpa_virtqueue *mvq, bool fw)

\
 
 \ /
  Last update: 2021-06-03 09:01    [W:0.111 / U:0.272 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site