linux-kernel - Re: [PATCH] ufs: core: bsg: Add hibern8 enter/exit to ufshcd_send_bsg_uic

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Message-ID: <7c6042974071699f9e5a85a4592d75a6a8c5ce4f.camel@gmail.com>
Date: Fri, 07 Mar 2025 11:38:52 +0100
From: Bean Huo <huobean@...il.com>
To: Arthur Simchaev <Arthur.Simchaev@...disk.com>, 
 "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
 "quic_mapa@...cinc.com" <quic_mapa@...cinc.com>,  "quic_cang@...cinc.com"
 <quic_cang@...cinc.com>
Cc: Avri Altman <Avri.Altman@...disk.com>, Avi Shchislowski
	 <Avi.Shchislowski@...disk.com>, "linux-scsi@...r.kernel.org"
	 <linux-scsi@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	 <linux-kernel@...r.kernel.org>, "bvanassche@....org" <bvanassche@....org>
Subject: Re: [PATCH] ufs: core: bsg: Add hibern8 enter/exit to
 ufshcd_send_bsg_uic_cmd

On Fri, 2025-03-07 at 09:18 +0000, Arthur Simchaev wrote:
> 
> 
> > -----Original Message-----
> > From: Bean Huo <huobean@...il.com>
> > Sent: Thursday, March 6, 2025 2:50 PM
> > To: Arthur Simchaev <Arthur.Simchaev@...disk.com>;
> > martin.petersen@...cle.com; quic_mapa@...cinc.com;
> > quic_cang@...cinc.com
> > Cc: Avri Altman <Avri.Altman@...disk.com>; Avi Shchislowski
> > <Avi.Shchislowski@...disk.com>; linux-scsi@...r.kernel.org; linux-
> > kernel@...r.kernel.org; bvanassche@....org
> > Subject: Re: [PATCH] ufs: core: bsg: Add hibern8 enter/exit to
> > ufshcd_send_bsg_uic_cmd
> > 
> > 
> > Arthur,
> > 
> > At present, we lack a user-space tool to initiate eye monitor
> > measurements.
> > Additionally, opening a channel for users in user land to send MP
> > commands
> > seems unsafe.
> > 
> > 
> > Kind regards,
> > Bean
> > 
> 
> Hi Bean.
> 
> Actually,  the EOM tool was published two months ago
> See the mail from Can Guo. The patch simply extends the UIC debugging
> functionality from user space.
> I think it is quite safe to use hibern8 functionality for debugging
> purposes.
> 
> Regards
> Arthur

Great, we will work on that.

Kind regards,
Bean