linux-kernel - Re: [PATCH v3 2/4] bus: mhi: core: Move MHI_MAX

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Message-ID: <a6babc13-e646-d08c-6f53-4d6961745ce0@codeaurora.org>
Date:   Wed, 24 Jun 2020 17:03:13 -0700
From:   Hemant Kumar <hemantk@...eaurora.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        jhugo@...eaurora.org, bbhatt@...eaurora.org
Subject: Re: [PATCH v3 2/4] bus: mhi: core: Move MHI_MAX_MTU to external
 header file

Hi Mani

On 6/18/20 10:33 PM, Manivannan Sadhasivam wrote:
> On Thu, Jun 11, 2020 at 11:13:42AM -0700, Hemant Kumar wrote:
>> Currently this macro is defined in internal MHI header as
>> a TRE length mask. Moving it to external header allows MHI
>> client drivers to set this upper bound for the transmit
>> buffer size.
>>
> 
> So we have 2 definitions for MHI_MAX_MTU now? Why can't you remove the one
> available internally?
Good catch, let me fix that in next patch series.
> 
> Thanks,
> Mani
> 
>> Signed-off-by: Hemant Kumar <hemantk@...eaurora.org>
>> ---
>>   include/linux/mhi.h | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/include/linux/mhi.h b/include/linux/mhi.h
>> index a39b77d..ce43f74 100644
>> --- a/include/linux/mhi.h
>> +++ b/include/linux/mhi.h
>> @@ -16,6 +16,9 @@
>>   #include <linux/wait.h>
>>   #include <linux/workqueue.h>
>>   
>> +/* MHI client drivers to set this upper bound for tx buffer */
>> +#define MHI_MAX_MTU 0xffff
>> +
>>   #define MHI_VOTE_BUS BIT(0) /* do not disable the mhi bus */
>>   #define MHI_VOTE_DEVICE BIT(1) /* prevent mhi device from entering lpm */
>>   
>> -- 
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>> a Linux Foundation Collaborative Project
>>

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project