Re: [PATCH] scsi: associate bio write hint with WRITE CDB

[Randall Huang]

On Fri, Jan 04, 2019 at 01:11:49AM -0500, Martin K. Petersen wrote:
> 
> Hi Randall,
> 
> OK, but we can't blindly go setting GROUP NUMBER to a non-zero value.
> That'll break a massive amount of devices which will fail READ/WRITE
> commands with INVALID FIELD IN CDB.
> 
> So aside from requiring the device to report GROUP_SUP=1, we'll need
> some sort of indication that this device supports the UFS Turbo Write
> feature. If you are engaged with JEDEC on this, please tell them we'll
> need a VPD page, a mode page, or something similar to use as trigger to
> entertain enabling this feature.
> 
> -- 
> Martin K. Petersen    Oracle Linux Engineering
No problem.
I will revise current patch.