From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>,
albertcc@tw.ibm.com, linux-ide@vger.kernel.org
Subject: Re: [PATCH 1/2] libata: implement ata_dev_enabled and disabled()
Date: Sat, 25 Mar 2006 23:54:55 +0000 [thread overview]
Message-ID: <1143330895.28134.14.camel@localhost.localdomain> (raw)
In-Reply-To: <20060325061215.GH5288@htj.dyndns.org>
On Sad, 2006-03-25 at 15:12 +0900, Tejun Heo wrote:
> This patch renames ata_dev_present() to ata_dev_enabled() and adds
> ata_dev_disabled(). This is to discern the state where a device is
> present but disabled from not-present state. This disctinction is
> necessary when configuring transfer mode because device selection
> timing must not be violated even if a device fails to configure.
This breaks the expected behaviour of ata_dev_pair(). I'd rather kept
the existing behaviour of ata_dev_present for the moment until we can
figure out what we need to do for "present but not enabled". That should
also fit the scsi layer expectations so we can correctly "offline" a
device.
next prev parent reply other threads:[~2006-03-25 23:48 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-24 6:25 [PATCHSET] libata: add @disable_on_err to ata_set_mode(), take#2 Tejun Heo
2006-03-24 6:25 ` [PATCH 1/5] libata: check if port is disabled after internal command Tejun Heo
2006-03-24 14:40 ` Jeff Garzik
2006-03-24 6:25 ` [PATCH 2/5] libata: implement ata_dev_disable() Tejun Heo
2006-03-24 6:25 ` [PATCH 5/5] libata: add @disable_on_err argument to ata_set_mode() Tejun Heo
2006-03-24 15:04 ` Jeff Garzik
2006-03-24 15:51 ` Alan Cox
2006-03-25 0:53 ` [PATCH 1/2] libata: implement ata_dev_enabled, disabled and present() Tejun Heo
2006-03-25 3:50 ` Jeff Garzik
2006-03-25 1:14 ` [PATCH 2/2] libata: add @disable_on_err argument to ata_set_mode() Tejun Heo
2006-03-25 4:03 ` Jeff Garzik
2006-03-25 5:40 ` Tejun Heo
2006-03-25 6:12 ` [PATCH 1/2] libata: implement ata_dev_enabled and disabled() Tejun Heo
2006-03-25 23:54 ` Alan Cox [this message]
2006-03-25 23:57 ` Tejun Heo
2006-03-27 11:17 ` Alan Cox
2006-03-29 6:58 ` Tejun Heo
2006-03-29 11:59 ` Alan Cox
2006-03-30 21:59 ` Jeff Garzik
2006-03-30 23:36 ` Tejun Heo
2006-03-25 6:13 ` [PATCH 2/2] libata: add @disable_on_err argument to ata_set_mode() Tejun Heo
2006-03-25 23:58 ` Alan Cox
2006-03-24 6:25 ` [PATCH 3/5] libata: use ata_dev_disable() in ata_bus_probe() Tejun Heo
2006-03-24 6:25 ` [PATCH 4/5] libata: make ata_set_mode() responsible for failure handling Tejun Heo
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