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From: "Winkler, Tomas" <tomas.winkler@intel.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	"Hunter, Adrian" <adrian.hunter@intel.com>,
	"James Bottomley" <James.Bottomley@HansenPartnership.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Vinayak Holikatti <vinholikatti@gmail.com>,
	Andy Lutomirski <luto@kernel.org>,
	Arve Hj?nnev?g <arve@android.com>,
	"Michael Ryleev" <gmar@google.com>,
	Joao Pinto <Joao.Pinto@synopsys.com>,
	Yaniv Gardi <ygardi@codeaurora.org>,
	Avri Altman <avri.altman@gmail.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"Usyskin, Alexander" <alexander.usyskin@intel.com>
Subject: RE: [PATCH v7 09/11] scsi: ufs: connect to RPMB subsystem
Date: Mon, 7 Nov 2016 19:27:38 +0000	[thread overview]
Message-ID: <5B8DA87D05A7694D9FA63FD143655C1B5431750E@hasmsx108.ger.corp.intel.com> (raw)
In-Reply-To: <20161107190109.GA5110@lst.de>

> 
> On Mon, Nov 07, 2016 at 09:53:12PM +0200, Tomas Winkler wrote:
> > Register UFS RPMB LUN with the RPMB subsystem and provide
> > implementation for the RPMB access operations. RPMB partition is
> > accessed via a sequence of security protocol in and security protocol
> > out commands with UFS specific parameters. This multi step process is
> > abstracted into 4 basic RPMB commands.
> 
> This is a giant layering violation - the security protocol is not something up to
> the LLDD but the core code.
> 
> And honestly the idea of defintining a security protocol in the UFS spec is just
> as braindead.  If you care about this please take it up with T10 to get RPMB
> support into one of the core SCSI specs instead of a transport.

I  value your opinion but I'm not responsible for inventing RPMB 
and/or its  implementation storage devices (eMMC, UFC, NVMe), it's pretty much done deal out there in the wild. 
I'm just trying to provide common API above it.

Thanks
Tomas

  reply	other threads:[~2016-11-07 19:27 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-07 19:53 [PATCH v7 00/11] char:rpmb: Replay Protected Memory Block (RPMB) subsystem Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 01/11] rpmb: add " Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 02/11] rpmb: enable emmc specific read data fixup Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 03/11] rpmb: add sysfs-class ABI documentation Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 04/11] char: rpmb: add device attributes Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 05/11] char: rpmb: provide a user space interface Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 06/11] char: rpmb: add RPMB simulation device Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 07/11] tools rpmb: add RPBM access tool Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 08/11] mmc: block: register RPMB partition with the RPMB subsystem Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 09/11] scsi: ufs: connect to " Tomas Winkler
2016-11-07 19:01   ` Christoph Hellwig
2016-11-07 19:27     ` Winkler, Tomas [this message]
2016-11-07 21:37       ` Christoph Hellwig
2017-03-22 21:25         ` Winkler, Tomas
2016-11-07 19:53 ` [PATCH v7 10/11] scsi: ufs: retrieve rpmb rw size Tomas Winkler
2016-11-07 19:53 ` [PATCH v7 11/11] char: rpmb: Document Replay Protected Memory Block (RPMB) subsystem Tomas Winkler

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