From: "Luciano A. Stertz" <luciano@tteng.com.br>
To: "Luciano A. Stertz" <luciano@tteng.com.br>
Cc: Jeff Garzik <jgarzik@pobox.com>, linux-ide@vger.kernel.org
Subject: Re: T10/04-262 ATA pass thru - patch.
Date: Wed, 29 Sep 2004 16:38:50 -0300 [thread overview]
Message-ID: <415B0F4A.5040104@tteng.com.br> (raw)
In-Reply-To: <415B0D9A.5080204@tteng.com.br>
Luciano A. Stertz wrote:
> Jeff Garzik wrote:
>
>> Luciano A. Stertz wrote:
>>
>>>
>>> Just trying to understand the SATA SMART problem as a whole. With
>>> your patch, it's possible to send ATA commands that are encapsulated
>>> in CDBs, right? If so, to enable sending direct ATA commands to a
>>> SATA device, one has to create a ioctl that receives the command and
>>> creates a CDB from it, as John Linville did a few weeks ago. This way
>>> a user-space application (e.g. smartmontools) can use this ioctl to
>>> send ATA commands. Am I right?
>>
>>
>>
>> No. SCSI "send CDB" ioctls have existed for years.
>>
>> The ioctls John added are merely for compatibility with existing IDE
>> utilities.
>
> Hmm, didn't know that. Do you mean that I can already send ATA
> commands to SATA devices? Where can I find information about these ioctls?
Ok, I guess now I got it. It was already possible to create and send
CDB, Andy's patch will 'decode' it so that it can be an ATA command.
>
> Thanks again,
> Luciano
>
--
Luciano A. Stertz
luciano@tteng.com.br
T&T Engenheiros Associados Ltda
http://www.tteng.com.br
Fone/Fax (51) 3224 8425
next prev parent reply other threads:[~2004-09-29 19:34 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-28 5:16 T10/04-262 ATA pass thru - patch Andy Warner
2004-09-28 5:39 ` Andy Warner
2004-09-29 16:49 ` John W. Linville
2004-09-29 18:19 ` Andy Warner
2004-09-29 17:12 ` John W. Linville
2004-09-29 20:44 ` Andy Warner
2004-09-29 18:29 ` Luciano A. Stertz
2004-09-29 17:20 ` John W. Linville
2004-09-29 18:32 ` Jeff Garzik
2004-09-29 19:31 ` Luciano A. Stertz
2004-09-29 19:38 ` Luciano A. Stertz [this message]
2004-09-29 18:55 ` John W. Linville
2004-10-05 18:53 ` Luciano A. Stertz
2004-10-05 19:06 ` Andy Warner
2004-10-05 22:19 ` Jeff Garzik
2004-10-05 22:37 ` Andy Warner
2004-10-05 22:41 ` Jeff Garzik
2004-10-06 6:04 ` Jens Axboe
2004-10-07 3:34 ` Jeff Garzik
2004-10-06 12:21 ` Luciano A. Stertz
2004-09-30 18:13 ` [patch libata-2.6] libata: SMART support via ATA pass-thru John W. Linville
2004-09-30 19:52 ` Jeff Garzik
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