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From: "Robin H. Johnson" <robbat2@gentoo.org>
To: Tejun Heo <tj@kernel.org>
Cc: "Robin H. Johnson" <robbat2@gentoo.org>,
	linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: [PATCH] libata: provide the ability to disable a disk via the params.
Date: Thu, 12 Dec 2013 20:22:53 +0000	[thread overview]
Message-ID: <robbat2-20131212T200207-028507804Z@orbis-terrarum.net> (raw)
In-Reply-To: <20131212133935.GA32683@htj.dyndns.org>

On Thu, Dec 12, 2013 at 08:39:35AM -0500, Tejun Heo wrote:
> Hello, Robin.
> 
> On Sat, Dec 07, 2013 at 04:56:27PM -0800, Robin H. Johnson wrote:
> > +		{ "disable",	.horkage_on	= ATA_HORKAGE_DISABLE },
> > +		{ "nodisable",	.horkage_off	= ATA_HORKAGE_DISABLE },
> Given the current usage of ATA_HORKAGE_DISABLE, I don't think we need
> "nodisable".  Let's just add "disable" for now.  Can you please update
> the patch and resend?
Before I do so, I have two questions:
1.
Countering your nodisable comment, would it be valid to do:
libata.force=2:disable libata.force=2.02:nodisable
To disable all of port 2 except device 2?

2. One of my friends wondered if it would be worthwhile to add force
keywords for other HORKAGE bits, and if so, should the
ata_lflag/ata_link force bits also be presented?

There are only 3 HORKAGE bits presently available in libata.force:
ATA_HORKAGE_NONCQ
ATA_HORKAGE_DUMP_ID
ATA_HORKAGE_ATAPI_DMADIR

And 3 ata_link flags:
ATA_LFLAG_NO_HRST
ATA_LFLAG_NO_SRST
ATA_LFLAG_RST_ONCE

-- 
Robin Hugh Johnson
Gentoo Linux: Developer, Infrastructure Lead
E-Mail     : robbat2@gentoo.org
GnuPG FP   : 11ACBA4F 4778E3F6 E4EDF38E B27B944E 34884E85

  reply	other threads:[~2013-12-12 20:22 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-08  0:56 [PATCH] libata: provide the ability to disable a disk via the params Robin H. Johnson
2013-12-12 13:39 ` Tejun Heo
2013-12-12 20:22   ` Robin H. Johnson [this message]
2013-12-12 20:36     ` Levente Kurusa
2013-12-12 20:47       ` Robin H. Johnson
2013-12-13 21:15       ` Tejun Heo
2013-12-16 17:31 ` [PATCH v2] libata: disable a disk via libata.force params Robin H. Johnson
2013-12-16 17:43   ` Tejun Heo

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