From mboxrd@z Thu Jan  1 00:00:00 1970
From: Aaron Lu <aaron.lu@intel.com>
Subject: Re: [PATCH v6 0/7] ZPODD patches
Date: Thu, 13 Sep 2012 17:19:56 +0800
Message-ID: <5051A53C.1020003@intel.com>
References: <1346768680-7287-1-git-send-email-aaron.lwe@gmail.com> <7AD76063A97F48128F7F6B285CD05C7E@usish.com.cn> <505150F7.3040800@intel.com> <EA857C7C6FB245F1B2B3C82DEA6DA148@usish.com.cn> <505199C2.7070309@intel.com> <B87BE1FCC4D44A6FBD300820B5C79842@usish.com.cn> <50519FAB.3050402@intel.com> <39385533A6294F469B42B0093B4B4840@usish.com.cn>
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To: Jack Wang <jack_wang@usish.com>
Cc: 'Aaron Lu' <aaron.lwe@gmail.com>, 'Alan Stern' <stern@rowland.harvard.edu>, 'James Bottomley' <James.Bottomley@HansenPartnership.com>, 'Jeff Garzik' <jgarzik@pobox.com>, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org
List-Id: linux-acpi@vger.kernel.org

On 09/13/2012 05:12 PM, Jack Wang wrote:
>>
>> When scsi disk is runtime suspended, the ata port it attached to will be
>> runtime suspended, and then the power will be removed through ACPI.
>>
>> Please check libata-acpi.c, function ata_acpi_set_state.
>>
>> The parent/child relationship of the devices:
>> ata_host
>>   ata_port
>>     scsi_host
>>       scsi_target
>>         scsi_device
>>
>> If you have more questions on how it works, please send email only
>> to me, other people might be too busy to read such emails :-)
>>
>> Thanks,
>> Aaron
> [Jack Wang] Thanks, but as I read code, only SATA disk will attached to ata
> port, how about SAS disk or FC disk?

Don't know much about SAS/FC, I guess they have their own controller.
The patch only work for SATA.

> 
> I still copy to other people as James suggested :)

Sure, please do so.

Thanks,
Aaron