netdev - Re: [PATCH v17 03/22] cxl: Move pci generic code

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Message-ID: <3d24d9cf-4b8a-4d70-b222-982f4d71ac89@amd.com>
Date: Wed, 6 Aug 2025 09:46:30 +0100
From: Alejandro Lucero Palau <alucerop@....com>
To: dan.j.williams@...el.com, alejandro.lucero-palau@....com,
 linux-cxl@...r.kernel.org, netdev@...r.kernel.org, edward.cree@....com,
 davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 edumazet@...gle.com, dave.jiang@...el.com
Cc: Ben Cheatham <benjamin.cheatham@....com>, Fan Ni <fan.ni@...sung.com>,
 Jonathan Cameron <Jonathan.Cameron@...wei.com>,
 Alison Schofield <alison.schofield@...el.com>
Subject: Re: [PATCH v17 03/22] cxl: Move pci generic code


On 7/25/25 23:41, dan.j.williams@...el.com wrote:
> alejandro.lucero-palau@ wrote:
>> From: Alejandro Lucero <alucerop@....com>
>>
>> Inside cxl/core/pci.c there are helpers for CXL PCIe initialization
>> meanwhile cxl/pci.c implements the functionality for a Type3 device
>> initialization.
>>
>> Move helper functions from cxl/pci.c to cxl/core/pci.c in order to be
>> exported and shared with CXL Type2 device initialization.
>>
>> Fix cxl mock tests affected by the code move.
> Next time would be nice to have a bit more color commentary on "fixes".
> In this case the code was just deleted to address a compilation problem,
> but that deletion is ok because this function stopped being called back
> in commit 733b57f262b0 ("cxl/pci: Early setup RCH dport component
> registers from RCRB").


Thanks. I'll add this.

>
>> Signed-off-by: Alejandro Lucero <alucerop@....com>
>> Reviewed-by: Dave Jiang <dave.jiang@...el.com>
>> Reviewed-by: Ben Cheatham <benjamin.cheatham@....com>
>> Reviewed-by: Fan Ni <fan.ni@...sung.com>
>> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
>> Reviewed-by: Alison Schofield <alison.schofield@...el.com>
>> Reviewed-by: Dan Williams <dan.j.williams@...el.com>
> Reviewed-by still stands, but I question why is_cxl_restricted() needs
> to be promoted to a global scope function. Are there going to be RCD
> type-2 devices that will have Linux drivers?


This was necessary in previous versions where a new accel API function 
required it. It is now gone, so it can be defined as before.

I'll fix it.


Thanks!