Re: [PATCH v5] scsi: ufs: core: Add trace event for MCQ

[Ziqi Chen <quic_ziqichen@quicinc.com>]

Thanks Bart, will address your comments and update new version V6 soon.

Best Regards,
Ziqi

On 3/14/2023 5:09 AM, Bart Van Assche wrote:
> On 3/13/23 02:16, Ziqi Chen wrote:
>> Added a new trace event to record MCQ relevant information
>> for each request in MCQ mode, include hardware queue ID,
>> SQ tail slot, CQ head slot and CQ tail slot.
> 
> Added a new trace event ... -> Add the MCQ information in the existing 
> trace event ...
> 
>  From Documentation/process/submitting-patches.rst: "Describe your 
> changes in imperative mood, e.g. "make xyzzy do frotz"".
> 
>> Changes to v1:
>> - Adjust the order of fileds to keep them aligned.
>                          ^^^^^^
>                          fields?
> 
>> -    u32 intr, doorbell;
>> +    u32 doorbell = 0, hwq_id = 0;
>> +    u32 intr;
> 
> Since hwq_id can be assigned the value -1, shouldn't its type be changed 
> from u32 into int, int16_t or int32_t?
> 
>> +    struct ufs_hw_queue *hwq = NULL;
> 
> Is this pointer only used inside one branch of the if-statement below? 
> If so, can it be moved under "if (is_mcq_enabled(hba)) {"?
> 
>> +        "%s: %s: tag: %u, DB: 0x%x, size: %d, IS: %u, LBA: %llu, 
>> opcode: 0x%x (%s), group_id: 0x%x, hqid: %d",
> 
> Consider changing "hqid" into "hwq_id" to make the trace information 
> easier to understand.
> 
> Thanks,
> 
> Bart.