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Date:   Fri, 20 Nov 2020 09:37:54 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Timo Rothenpieler <timo@rothenpieler.org>
Cc:     stable@vger.kernel.org, Eran Ben Elisha <eranbe@nvidia.com>,
        Jack Wang <xjtuwjp@gmail.com>,
        Saeed Mahameed <saeedm@nvidia.com>, jgg@ziepe.ca
Subject: Re: Backport missing mlx5 fixes after 50b2412b7e7
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References: <f1c78926-b95b-c4b0-c323-c7a5ca1c8856@rothenpieler.org>
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On Wed, Nov 18, 2020 at 07:28:30PM +0100, Timo Rothenpieler wrote:
> Hi,
> 
> After 50b2412b7e7862c5af0cbf4b10d93bc5c712d021 was backported to stable
> branches (I only tested 5.4), some serious issues started to arrise.
> 
> According to linux-rdma, the following two patches that need to go along
> with 50b2412b7e are missing:
> 
> > 1. 1d5558b1f0de net/mlx5: poll cmd EQ in case of command timeout
> > 2. 410bd754cd73 net/mlx5: Add retry mechanism to the command entry ...
> 
> I managed to apply those mostly cleanly after also applying two
> dependencies.
> So the complete list of needed commits for 5.4 is:
> 
> 1. 3ed879965cc4 net/mlx5: Use async EQ setup cleanup helpers ...
> 2. 1d5558b1f0de net/mlx5: poll cmd EQ in case of command timeout
> 3. d43b7007dbd1 net/mlx5: Fix a race when moving command ...
> 4. 410bd754cd73 net/mlx5: Add retry mechanism to the command entry ...
> 
> With those 4 commits applied, the issue is fixed.
> For reference, that's the output I get with 5.4.77:

All now queued up, thanks.

greg k-h