netdev - Re: [PATCH v4 02/26] sfc: add cxl support using new CXL API

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Message-ID: <c34c6734-6936-a7a9-448f-64bf48731bb6@amd.com>
Date: Wed, 30 Oct 2024 16:31:32 +0000
From: Alejandro Lucero Palau <alucerop@....com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc: alejandro.lucero-palau@....com, linux-cxl@...r.kernel.org,
 netdev@...r.kernel.org, dan.j.williams@...el.com, martin.habets@...inx.com,
 edward.cree@....com, davem@...emloft.net, kuba@...nel.org,
 pabeni@...hat.com, edumazet@...gle.com
Subject: Re: [PATCH v4 02/26] sfc: add cxl support using new CXL API


On 10/29/24 15:14, Jonathan Cameron wrote:
>>>> +
>>>> +	cxl = kzalloc(sizeof(*cxl), GFP_KERNEL);
>>> __free magic here.
>>> Assuming later changes don't make that a bad idea - I've not
>>> read the whole set for a while.
>>
>> Remember we are in netdev territory and those free magic things are not
>> liked ...
> I'll keep forgetting that. Feel free to ignore me when I do!
>
>
>
>>>> diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
>>>> index b85c51cbe7f9..77261de65e63 100644
>>>> --- a/drivers/net/ethernet/sfc/net_driver.h
>>>> +++ b/drivers/net/ethernet/sfc/net_driver.h
>>>> @@ -817,6 +817,8 @@ enum efx_xdp_tx_queues_mode {
>>>>    
>>>>    struct efx_mae;
>>>>    
>>>> +struct efx_cxl;
>>>> +
>>>>    /**
>>>>     * struct efx_nic - an Efx NIC
>>>>     * @name: Device name (net device name or bus id before net device registered)
>>>> @@ -963,6 +965,8 @@ struct efx_mae;
>>>>     * @tc: state for TC offload (EF100).
>>>>     * @devlink: reference to devlink structure owned by this device
>>>>     * @dl_port: devlink port associated with the PF
>>>> + * @cxl: details of related cxl objects
>>>> + * @efx_cxl_pio_initialised: clx initialization outcome.
>>> cxl
>>
>> Well spotted. I'll fix it.
>>
>>
>>> Also, it's in a struct called efx_nic, so is the efx_ prefix
>>> useful?
>>
>> I do not like to have the name as the struct ...
> You've lost me.  efx_nic->cxl_pio_initialised was that I was suggesting
> and not setting how this comment applies.


I could try some excuses ... but it was my silly side or maybe not 
enough coffee.

You are of course right, and the prefix is not needed.

I'll fix it for v5.

Thanks!


> J