netdev - Re: [PATCH net-next 2/4] net: hns3: Support tlv in regs data for HNS3 PF driver

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Date: Tue, 15 Aug 2023 21:26:10 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Jijie Shao <shaojijie@...wei.com>
Cc: yisen.zhuang@...wei.com, salil.mehta@...wei.com, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	shenjian15@...wei.com, wangjie125@...wei.com,
	liuyonglong@...wei.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 2/4] net: hns3: Support tlv in regs data for
 HNS3 PF driver

On Tue, Aug 15, 2023 at 02:06:39PM +0800, Jijie Shao wrote:
> The dump register function is being refactored.
> The second step in refactoring is to support tlv info in regs data for
> HNS3 PF driver.
> 
> Currently, if we use "ethtool -d" to dump regs value,
> the output is as follows:
>   offset1: 00 01 02 03 04 05 ...
>   offset2：10 11 12 13 14 15 ...
>   ......
> 
> We can't get the value of a register directly.
> 
> This patch deletes the original separator information and
> add tag_len_value information in regs data.
> ethtool can parse register data in key-value format by -d command.
> 
> a patch will be added to the ethtool to parse regs data
> in the following format:
>   reg1 : value2
>   reg2 : value2
>   ......
> 
> Signed-off-by: Jijie Shao <shaojijie@...wei.com>
> ---
>  .../hisilicon/hns3/hns3pf/hclge_regs.c        | 167 +++++++++++-------
>  1 file changed, 102 insertions(+), 65 deletions(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@...dia.com>