RE: [PATCH v2 1/5] scsi: ufs: allow legacy UFS devices to enable WriteBooster

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Avri,

On Thu, 2020-04-30 at 07:44 +0000, Avri Altman wrote:
> Hi Stanley,
>  
> > 
> > WriteBooster feature may be supported by some legacy UFS devices
> > (i.e., < 3.1) by upgrading firmware.
> > 
> > To enable WriteBooster feature in such devices, relax the entrance
> > condition of ufshcd_wb_probe() to allow host driver to check those
> > devices' WriteBooster capability.
> > 
> > WriteBooster feature can be available if below both conditions are
> > satisfied,
> > 
> > 1. Device descriptor has dExtendedUFSFeaturesSupport field.
> > 2. WriteBooster support is specified in above field.
> > 
> > Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
> > Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>
> WB was first introduced as part of UFS3.1, and lately as part of UFS2.2.
> Any non-standard behavior should be classified as a quirk.

OK! I will try to revise this patch to allow only standard devices
handled by normal path and non-standard devices handled by device
quirks.

Thanks,
Stanley Chu





[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]

  Powered by Linux