linux-kernel - Re: [PATCH] net/mlx4_core: print firmware version during driver loading

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Date:   Fri, 14 Sep 2018 07:43:14 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Qing Huang <qing.huang@...cle.com>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, tariqt@...lanox.com,
        davem@...emloft.net
Subject: Re: [PATCH] net/mlx4_core: print firmware version during driver
 loading

On Thu, Sep 13, 2018 at 05:25:14PM -0700, Qing Huang wrote:
> When debugging firmware related issues, it's very helpful to have

      ^^^^^^^^^^ exactly, this is why we set this print as mlx4_dbg and
      not mlx4_info.

> the installed FW version info in the kernel log when the driver is
> loaded. It's easier to match error/warning messages with different
> FW versions in the log other than running a separate tool to get
> the information back and forth.
>
> Signed-off-by: Qing Huang <qing.huang@...cle.com>
> ---
>  drivers/net/ethernet/mellanox/mlx4/fw.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
> index babcfd9..e1c5218 100644
> --- a/drivers/net/ethernet/mellanox/mlx4/fw.c
> +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
> @@ -1686,11 +1686,11 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)
>  	MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
>  	cmd->max_cmds = 1 << lg;
>
> -	mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
> -		 (int) (dev->caps.fw_ver >> 32),
> -		 (int) (dev->caps.fw_ver >> 16) & 0xffff,
> -		 (int) dev->caps.fw_ver & 0xffff,
> -		 cmd_if_rev, cmd->max_cmds);
> +	mlx4_info(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
> +		  (int)(dev->caps.fw_ver >> 32),
> +		  (int)(dev->caps.fw_ver >> 16) & 0xffff,
> +		  (int)dev->caps.fw_ver & 0xffff,
> +		  cmd_if_rev, cmd->max_cmds);
>
>  	MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
>  	MLX4_GET(fw->catas_size,   outbox, QUERY_FW_ERR_SIZE_OFFSET);
> --
> 2.9.3
>

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