netdev - Re: [RFCv3 PATCH net-next 1/2] net-next: ethtool: extend ringparam set/get APIs for tx

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Message-ID: <98b746da-44c4-a132-3231-1f42885f941f@huawei.com>
Date:   Wed, 30 Mar 2022 13:55:46 +0800
From:   "wangjie (L)" <wangjie125@...wei.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     <mkubecek@...e.cz>, <davem@...emloft.net>,
        <netdev@...r.kernel.org>, <huangguangbin2@...wei.com>,
        <lipeng321@...wei.com>, <shenjian15@...wei.com>,
        <moyufeng@...wei.com>, <linyunsheng@...wei.com>,
        <salil.mehta@...wei.com>, <chenhao288@...ilicon.com>
Subject: Re: [RFCv3 PATCH net-next 1/2] net-next: ethtool: extend ringparam
 set/get APIs for tx_push



On 2022/3/30 7:20, Jakub Kicinski wrote:
> On Tue, 29 Mar 2022 17:19:12 +0800 Jie Wang wrote:
>> diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
>> index 24d9be69065d..424159027309 100644
>> --- a/Documentation/networking/ethtool-netlink.rst
>> +++ b/Documentation/networking/ethtool-netlink.rst
>> @@ -862,6 +862,7 @@ Kernel response contents:
>>    ``ETHTOOL_A_RINGS_RX_BUF_LEN``        u32     size of buffers on the ring
>>    ``ETHTOOL_A_RINGS_TCP_DATA_SPLIT``    u8      TCP header / data split
>>    ``ETHTOOL_A_RINGS_CQE_SIZE``          u32     Size of TX/RX CQE
>> +  ``ETHTOOL_A_RINGS_TX_PUSH``           u8      flag of TX Push mode
>>    ====================================  ======  ===========================
>>
>>  ``ETHTOOL_A_RINGS_TCP_DATA_SPLIT`` indicates whether the device is usable with
>> @@ -887,6 +888,7 @@ Request contents:
>>    ``ETHTOOL_A_RINGS_TX``                u32     size of TX ring
>>    ``ETHTOOL_A_RINGS_RX_BUF_LEN``        u32     size of buffers on the ring
>>    ``ETHTOOL_A_RINGS_CQE_SIZE``          u32     Size of TX/RX CQE
>> +  ``ETHTOOL_A_RINGS_TX_PUSH``           u8      flag of TX Push mode
>>    ====================================  ======  ===========================
>>
>>  Kernel checks that requested ring sizes do not exceed limits reported by
>
> You need to also describe what it does. Do you have a user manual
> or some form of feature documentation that could be used as a starting
> point. We're happy to help with the wording and grammar but you need
> to give us a description of the feature so we're not guessing.
yes, I have some feature focumentations. I will add this part in next 
version.
>
> .
>