From: Kalle Valo <kvalo@codeaurora.org>
To: <Ajay.Kathat@microchip.com>
Cc: <davidm@egauge.net>, <julian.calaby@gmail.com>,
<linux-wireless@vger.kernel.org>, <Claudiu.Beznea@microchip.com>
Subject: Re: [PATCH 4/4] wilc1000: Add support for enabling CRC
Date: Fri, 26 Feb 2021 09:09:43 +0200 [thread overview]
Message-ID: <87sg5je24o.fsf@codeaurora.org> (raw)
In-Reply-To: <22b6e634-d881-7e94-c96f-f92b1588cf05@microchip.com> (Ajay Kathat's message of "Thu, 25 Feb 2021 11:03:51 +0000")
<Ajay.Kathat@microchip.com> writes:
> On 25/02/21 1:52 pm, Kalle Valo wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>> <Ajay.Kathat@microchip.com> writes:
>>
>>> On 25/02/21 5:06 am, David Mosberger-Tang wrote:
>>>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>>>
>>>> Julian,
>>>>
>>>> On Thu, 2021-02-25 at 08:19 +1100, Julian Calaby wrote:
>>>>> Hi David,
>>>>>
>>>>> On Wed, Feb 24, 2021 at 6:56 PM David Mosberger-Tang <
>>>>> davidm@egauge.net> wrote:
>>>>>>
>>>>>> +#define ENABLE_CRC7 0 /* set to 1 to protect SPI commands
>>>>>> with CRC7 */
>>>>>> +#define ENABLE_CRC16 0 /* set to 1 to protect SPI data
>>>>>> with CRC16 */
>>>>>
>>>>> Should these be Kconfig variables instead?
>>>>
>>>> I'd certainly like that. Ajay, would you be OK with that?
>>>>
>>>
>>> Yes, I am fine with the changes to move as Kconfig variable.
>>
>> Kconfig is not ideal for configuring functionality, something like a
>> module parameter is usually better. But why not just enable CRC always?
>> Why would the user need to disable this?
>
> As I know, the CRC check can be an time taking operation for each data
> packets and in turn, can have impact on throughput performance.
> Generally, it is recommended to keep this CRC configuration disabled.
> But someone is cautious can enable it on a need basis by knowing the
> possible reduction on throughput number.
Then I think a module parameter would be the best approach, I don't see
the need to recompile anything for this. And remember to document the
impact for the performance in the commit log and/or in the module
parameter documentation.
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2021-02-26 7:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-24 5:51 [PATCH 1/4] wilc1000: Make SPI transfers work at 48MHz David Mosberger-Tang
2021-02-24 5:51 ` [PATCH 2/4] wilc1000: Introduce symbolic names for SPI protocol register David Mosberger-Tang
2021-02-24 5:51 ` [PATCH 3/4] wilc1000: Check for errors at end of DMA write David Mosberger-Tang
2021-02-25 8:27 ` Kalle Valo
2021-02-25 18:10 ` David Mosberger-Tang
2021-02-24 5:52 ` [PATCH 4/4] wilc1000: Add support for enabling CRC David Mosberger-Tang
2021-02-24 10:01 ` Ajay.Kathat
2021-02-24 16:25 ` David Mosberger-Tang
2021-02-25 4:50 ` Ajay.Kathat
2021-02-24 13:35 ` Ajay.Kathat
2021-02-24 15:47 ` David Mosberger-Tang
2021-02-25 4:58 ` Ajay.Kathat
2021-02-25 8:25 ` Kalle Valo
2021-02-24 21:19 ` Julian Calaby
2021-02-24 23:36 ` David Mosberger-Tang
2021-02-25 5:56 ` Ajay.Kathat
2021-02-25 8:22 ` Kalle Valo
2021-02-25 11:03 ` Ajay.Kathat
2021-02-26 7:09 ` Kalle Valo [this message]
2021-02-27 17:29 ` [PATCH v2 1/4] wilc1000: Make SPI transfers work at 48MHz David Mosberger-Tang
2021-04-17 17:48 ` Kalle Valo
2021-02-27 17:29 ` [PATCH v2 2/4] wilc1000: Introduce symbolic names for SPI protocol register David Mosberger-Tang
2021-02-27 17:29 ` [PATCH v2 3/4] wilc1000: Check for errors at end of DMA write David Mosberger-Tang
2021-02-27 17:31 ` [PATCH v2 4/4] wilc1000: Add support for enabling CRC David Mosberger-Tang
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