netdev - Re: [PATCH net-next v6 0/5] net: stmmac: Add PCI driver support for BCM8958x

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Message-ID: <4a2d8151-9dfe-4876-8216-85211bc393bf@quicinc.com>
Date: Wed, 28 May 2025 22:24:58 -0700
From: "Abhishek Chauhan (ABC)" <quic_abchauha@...cinc.com>
To: Yanteng Si <si.yanteng@...ux.dev>,
        Jitendra Vegiraju
	<jitendra.vegiraju@...adcom.com>
CC: Andrew Lunn <andrew@...n.ch>,
        "Russell King (Oracle)"
	<rmk+kernel@...linux.org.uk>,
        <netdev@...r.kernel.org>, <alexandre.torgue@...s.st.com>,
        <joabreu@...opsys.com>, <davem@...emloft.net>, <edumazet@...gle.com>,
        <kuba@...nel.org>, <pabeni@...hat.com>, <mcoquelin.stm32@...il.com>,
        <bcm-kernel-feedback-list@...adcom.com>, <richardcochran@...il.com>,
        <ast@...nel.org>, <daniel@...earbox.net>, <hawk@...nel.org>,
        <john.fastabend@...il.com>, <fancer.lancer@...il.com>,
        <ahalaney@...hat.com>, <xiaolei.wang@...driver.com>,
        <rohan.g.thomas@...el.com>, <Jianheng.Zhang@...opsys.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <bpf@...r.kernel.org>,
        <linux@...linux.org.uk>, <horms@...nel.org>,
        <florian.fainelli@...adcom.com>,
        Sagar Cheluvegowda <quic_scheluve@...cinc.com>
Subject: Re: [PATCH net-next v6 0/5] net: stmmac: Add PCI driver support for
 BCM8958x



On 5/28/2025 10:14 PM, Yanteng Si wrote:
> 
> 在 5/29/25 10:56 AM, Jitendra Vegiraju 写道:
>> Hi Yanteng,
>>
>> On Wed, May 28, 2025 at 6:36 PM Yanteng Si <si.yanteng@...ux.dev> wrote:
>>> 在 5/28/25 8:04 AM, Abhishek Chauhan (ABC) 写道:
>>>>
>>>> On 2/7/2025 3:18 PM, Jitendra Vegiraju wrote:
>>>>> Hi Abhishek,
>>>>>
>>>>> On Fri, Feb 7, 2025 at 10:21 AM Abhishek Chauhan (ABC) <
>>>>> quic_abchauha@...cinc.com> wrote:
>>>>>
>>>>>>
>>>>>> On 11/5/2024 8:12 AM, Jitendra Vegiraju wrote:
>>>>>>> Hi netdev team,
>>>>>>>
>>>>>>> On Fri, Oct 18, 2024 at 1:53 PM <jitendra.vegiraju@...adcom.com> wrote:
>>>>>>>> From: Jitendra Vegiraju <jitendra.vegiraju@...adcom.com>
>>>>>>>>
>>>>>>>> This patchset adds basic PCI ethernet device driver support for Broadcom
>>>>>>>> BCM8958x Automotive Ethernet switch SoC devices.
>>>>>>>>
>>>>>>> I would like to seek your guidance on how to take this patch series
>>>>>> forward.
>>>>>>> Thanks to your feedback and Serge's suggestions, we made some forward
>>>>>>> progress on this patch series.
>>>>>>> Please make any suggestions to enable us to upstream driver support
>>>>>>> for BCM8958x.
>>>>>> Jitendra,
>>>>>>            Have we resent this patch or got it approved ? I dont see any
>>>>>> updates after this patch.
>>>>>>
>>>>>>
>>>>> Thank you for inquiring about the status of this patch.
>>>>> As stmmac driver is going through a maintainer transition, we wanted to
>>>>> wait until a new maintainer is identified.
>>>>> We would like to send the updated patch as soon as possible.
>>>>> Thanks,
>>>>> Jitendra
>>>> Thanks Jitendra, I am sorry but just a follow up.
>>>>
>>>> Do we know if stmmac maintainer are identified now ?
>>> I'm curious why such a precondition is added？
>>>
>> It's not a precondition. Let me give some context.
>> This patch series adds support for a new Hyper DMA(HDMA) MAC from Synopsis.
>> Many of the netdev community members reviewed the patches at that time.
>> Being the module maintainer at that time, Serge took the initiative to
>> guide us through integrating the new MAC into the stmmac driver.
>> We addressed all the review comments and submitted the last patch series.
>> Without an official maintainer, we didn't get feedback on the last patch series.
>> Because of this, we wanted to wait until a new maintainer is assigned
>> to this module.
>> As Abhishek expressed in his email, it appears the HDMA MAC is
>> becoming more mainstream.
>> We are hoping to rebase the patch series and resubmit for review if
>> netdev team members show interest.
> 
> 
> https://lore.kernel.org/netdev/20241018205332.525595-1-jitendra.vegiraju@broadcom.com/
> 
> In my opinion, the precondition for waiting for a maintainer is that
> 
> the patch set has passed the review. I checked lore and did not find
> 
> any R&B tags in the patch set, which means your patch set has not
> 
> yet met the merging requirements.
> 
> Therefore, I think you can continue to push forward with this patch
> 
> set and not let it stagnate. I will take some time to review the previous
> 
> versions (which may take a while) and hope to be helpful.
> 
> Thanks,
> 
> Yanteng
> 
I will review the patch in the coming few days as well. As this patch also helps Qualcomm to develop the 
HDMA arch for 25XGMAC EMAC controller. 
This patch is validated/verfied/tested on Qualcomm platform devices which are not PCIE based. 
>> Thanks,
>> Jitendra
>>> Thanks,
>>> Yanteng