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SubjectRe: [PATCH net-next 01/12] net: hns3: fix VLAN initialization to be compatible with port base insert VLAN
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On 2019/4/12 2:20, David Miller wrote:
> From: Huazhong Tan <tanhuazhong@huawei.com>
> Date: Thu, 11 Apr 2019 20:25:20 +0800
>
>> From: Jian Shen <shenjian15@huawei.com>
>>
>> This patch fixes VLAN initialization, in order to be compatible
>> with VLAN inserted base on port.
>
> This doesn't mean anything to me.
>
> Why was normal VLAN initialization different, and how is the behavior
> of VLAN's configured when inserted based upon port different and why
> is it better?
>
> You have to improve your commit log messages so that someone not
> intimately familiar with your driver and code can understand what you
> are doing and why.
>

Sorry, I will describe it in detail.

Our hardware supports insert a specified vlan header for each function
when send packets. User can enable it with command "ip link set
<devname> vf <vfid> vlan <vlan id>". For this vlan header is inserted
by hardware, not from stack, hardware also needs to strip it from
received packet before upstreaming to stack. In this case, driver needs
to tell hardware which vlan to insert or strip.

Thanks.

> .
>

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