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SubjectRe: [PATCH] scsi: ufs: support IO traces for zoned block device
On 02/15, Christoph Hellwig wrote:
> Why does UFS even have it's own common tracing instad of just relying
> on the core SCSI one, and even worse pokes into command set specifics
> which is a no-go for LLDDs. This code simply needs to go away instead
> of beeing "enhanced".

I'm not sure how all the other vendors use the trace tho, at least to me,
it's quite useful when debugging any UFS-specific information such as
group_id and doorbell status along with the attached scsi command, in
addition to the accurate latency measurements.

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