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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Matan Azrad <matan@mellanox.com>
Cc: dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix virtq unset
Date: Mon, 3 Aug 2020 16:38:23 +0200	[thread overview]
Message-ID: <c0ed315a-f0d1-e6de-a6d4-5045af524279@redhat.com> (raw)
In-Reply-To: <1596443124-270157-1-git-send-email-matan@mellanox.com>



On 8/3/20 10:25 AM, Matan Azrad wrote:
> When a virtq is destroyed, the SW should be able to continue the virtq
> processing from where the HW stopped.
> 
> The current destroy behavior in the driver saves the virtq state (used
> and available indexes) only when LM is requested.
> So, when LM is not requested the queue state is not saved and the SW
> indexes stay invalid.
> 
> Save the virtq state in the virtq destroy process.
> 
> Fixes: bff735011078 ("vdpa/mlx5: prepare virtio queues")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Matan Azrad <matan@mellanox.com>
> Acked-by: Xueming Li <xuemingl@mellanox.com>
> ---
>  drivers/vdpa/mlx5/mlx5_vdpa.h       |  1 +
>  drivers/vdpa/mlx5/mlx5_vdpa_virtq.c | 17 ++++++++++++-----
>  2 files changed, 13 insertions(+), 5 deletions(-)
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime


  reply	other threads:[~2020-08-03 14:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-03  8:25 [dpdk-dev] [PATCH] vdpa/mlx5: fix virtq unset Matan Azrad
2020-08-03 14:38 ` Maxime Coquelin [this message]
2020-08-03 15:56 ` Maxime Coquelin

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