From: Jeff Garzik <jgarzik@pobox.com>
To: Lin Ming <ming.m.lin@intel.com>
Cc: James Bottomley <JBottomley@parallels.com>,
Alan Stern <stern@rowland.harvard.edu>, Tejun Heo <tj@kernel.org>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
linux-scsi@vger.kernel.org, linux-pm@vger.kernel.org,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Huang Ying <ying.huang@intel.com>,
Zhang Rui <rui.zhang@intel.com>
Subject: Re: [PATCH v5 1/6] ata: make ata port as parent device of scsi host
Date: Wed, 07 Dec 2011 15:04:38 -0500 [thread overview]
Message-ID: <4EDFC6D6.3050601@pobox.com> (raw)
In-Reply-To: <1323048028-10421-2-git-send-email-ming.m.lin@intel.com>
On 12/04/2011 08:20 PM, Lin Ming wrote:
> Currently, the device tree of ata port and scsi host looks as below,
>
> /sys/devices/pci0000:00/0000:00:1f.2 (ahci controller)
> |-- ata1 (ata port)
> |-- host0 (scsi host)
> |-- target0:0:0 (scsi target)
> |-- 0:0:0:0 (disk)
>
> This patch makes ata port as parent device of scsi host, then it becomes
>
> /sys/devices/pci0000:00/0000:00:1f.2 (ahci controller)
> |-- ata1 (ata port)
> |-- host0 (scsi host)
> |-- target0:0:0 (scsi target)
> |-- 0:0:0:0 (disk)
>
> With this change, the ata port runtime PM is easier.
> For example, the ata port runtime suspend will happen as,
>
> disk suspend --> scsi target suspend --> scsi host suspend --> ata port
> suspend.
>
> Acked-by: Tejun Heo<tj@kernel.org>
> Signed-off-by: Lin Ming<ming.m.lin@intel.com>
> ---
> drivers/ata/libata-scsi.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
applied 1-6, thanks
next prev parent reply other threads:[~2011-12-07 20:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-05 1:20 [PATCH v5 0/6] ata port runtime power management support Lin Ming
2011-12-05 1:20 ` [PATCH v5 1/6] ata: make ata port as parent device of scsi host Lin Ming
2011-12-07 20:04 ` Jeff Garzik [this message]
2011-12-05 1:20 ` [PATCH v5 2/6] [SCSI] add flag to skip the runtime PM calls on the host Lin Ming
2011-12-05 1:20 ` [PATCH v5 3/6] [SCSI] check runtime PM status in system PM Lin Ming
2011-12-05 1:20 ` [PATCH v5 4/6] [SCSI] sd: check runtime PM status in sd_shutdown Lin Ming
2011-12-05 1:20 ` [PATCH v5 5/6] ata: add ata port system PM callbacks Lin Ming
2011-12-07 8:38 ` Lin Ming
[not found] ` <CAF1ivSbRejpSEVfHAhOUxaqAedkCQVHWOgsJGFLM2yt2QaxtuQ@mail.gmail.com>
2011-12-13 14:20 ` Lin Ming
2011-12-13 15:47 ` Alan Stern
2011-12-13 18:57 ` Lin Ming
2011-12-13 19:07 ` Alan Stern
2011-12-05 1:20 ` [PATCH v5 6/6] ata: add ata port runtime " Lin Ming
2011-12-07 8:42 ` Lin Ming
2011-12-07 18:29 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4EDFC6D6.3050601@pobox.com \
--to=jgarzik@pobox.com \
--cc=JBottomley@parallels.com \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=ming.m.lin@intel.com \
--cc=rjw@sisk.pl \
--cc=rui.zhang@intel.com \
--cc=stern@rowland.harvard.edu \
--cc=tj@kernel.org \
--cc=ying.huang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).