linux-kernel - RE: [PATCH v5 03/10] scsi: ufshpb: Add region's reads counter

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Message-ID: <DM6PR04MB6575319E8340A8AD89633CFEFC909@DM6PR04MB6575.namprd04.prod.outlook.com>
Date:   Thu, 11 Mar 2021 08:04:12 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Can Guo <cang@...eaurora.org>
CC:     "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        Bart Van Assche <bvanassche@....org>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Daejun Park <daejun7.park@...sung.com>,
        "alim.akhtar@...sung.com" <alim.akhtar@...sung.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        Zang Leigang <zangleigang@...ilicon.com>,
        Avi Shchislowski <Avi.Shchislowski@....com>,
        Bean Huo <beanhuo@...ron.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>
Subject: RE: [PATCH v5 03/10] scsi: ufshpb: Add region's reads counter

> > diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
> > index 044fec9854a0..a8f8d13af21a 100644
> > --- a/drivers/scsi/ufs/ufshpb.c
> > +++ b/drivers/scsi/ufs/ufshpb.c
> > @@ -16,6 +16,8 @@
> >  #include "ufshpb.h"
> >  #include "../sd.h"
> >
> > +#define ACTIVATION_THRESHOLD 4 /* 4 IOs */
> 
> Can this param be added as a sysfs entry?
Yes.
Daejun asked me that as well, so the last patch makes all logic parameter configurable.

Thanks,
Avri

> 
> Thanks,
> Can Guo