linux-kernel - Re: [PATCH net-next 00/20] net: ethernet: Add qcom PPE driver

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Date: Thu, 11 Jan 2024 23:49:53 +0800
From: Jie Luo <quic_luoj@...cinc.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: <agross@...nel.org>, <andersson@...nel.org>, <konrad.dybcio@...aro.org>,
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Subject: Re: [PATCH net-next 00/20] net: ethernet: Add qcom PPE driver



On 1/11/2024 6:24 AM, Jakub Kicinski wrote:
> On Wed, 10 Jan 2024 19:40:12 +0800 Luo Jie wrote:
>> The PPE(packet process engine) hardware block is available in Qualcomm
>> IPQ chipsets that support PPE architecture, such as IPQ9574 and IPQ5332.
> 
> What's the relationship between this driver and QCA8084?

The PPE (packet processing engine) is the network processing hardware 
block in QCOM IPQ SoC. It includes the ethernet MAC and UNIPHY(PCS). 
This driver is the base PPE driver which brings up the PPE and handles 
MAC/UNIPHY operations. QCA8084 is the external 2.5Gbps 4-port PHY 
device, which can be connected with PPE integrated MAC by UNIPHY(PCS).

Here is the relationship.
PPE integrated MAC --- PPE integrated UNIPHY(PCS) --- (PCS)QCA8084.

> 
> In the last month I see separate changes from you for mdio-ipq4019.c,
> phy/at803x.c and now this driver (none of which got merged, AFAICT.)
> Are you actually the author of this code, or are you just trying
> to upstream bunch of vendor code?

Yes, Jakub, there are two authors in these patch series, Lei Wei and me.
The patches are already ready for some time, the code has been verified
on the Qualcomm reference design board. These are not downstream drivers
but drivers re-written for upstream.

> 
> Now you're dumping another 10kLoC on the list, and even though this is
> hardly your first posting you're apparently not aware of our most basic
> posting rules:
> https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#tl-dr
> 
> The reviewers are getting frustrated. Please, help us help you.
> Stop throwing code at the list and work out a plan with Andrew
> and others on how to get something merged...

Sorry for trouble caused, will learn about the guidance provided by
the review comments, and follow up on the guidance and have the full
internal review of the patch updates before pushing the patch series.