Re: [PATCH 05/16] scsi: libsas: Add struct sas_tmf_task

[John Garry]

On 25/01/2022 13:37, Matthew Wilcox wrote:
> > Also add an interim force phy id field for hisi_sas driver, which will be
> > removed once the STP "TMF" code is factored out.
> >
> > Even though some LLDDs (pm8001) use a u32 for the tag, u16 should be
> > enough.
> ... because pm8001 limits the number of tags to 1024.
> .

Sure, but the pm8001 HW does has a 32b field, which is strange as the 
SAS spec defines a 16b field in the task management Function information 
unit "tag of task to be managed" field.

Thanks,
John