Re: [PATCH v19 3/3] scsi: ufs: Prepare HPB read for cached sub-region

From: Bean Huo
Date: Sun Feb 07 2021 - 05:45:51 EST


On Sun, 2021-02-07 at 15:36 +0800, Can Guo wrote:
> >
> > Thanks, I tested Daejun's patchset before, it is also ok (I don't
> > know
> > which version patchset). maybe we can keep current implementation
> > as
> > default, then if there is conflict, and submit the quirk.
> >
>
> Yeah, you've tested it, are you sure that Micron's UFS devices are OK
> with this specific code line?
>
> Micron UFS FW team has confirmed that Micron's HPB entries read out
> by
> "HPB Buffer Read" cmd are in big-endian byte ordering.

Aha, I think you didn't check with right person :), ping me, let me
tell you this confusing story. and see my HPB patch, I didn't the same
with here:

https://patchwork.kernel.org/project/linux-scsi/patch/20200504142032.16619-6-beanhuo@xxxxxxxxxx/

Bean