From: Tejun Heo <htejun@gmail.com>
To: Russell Sloan <russell.sloan@lingua-data.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: SATA timeout value
Date: Mon, 23 Apr 2007 15:59:44 +0900 [thread overview]
Message-ID: <462C5960.1030005@gmail.com> (raw)
In-Reply-To: <23734110.128641177197843579.JavaMail.servlet@perfora>
Russell Sloan wrote:
> Hi everyone,
>
> Can someone point me to the area in the SATA code that is responsible
> for timing out while checking on a drive connection?
>
> I have a drive that shuts its SATA interface down while it is doing a
> Security Erase, and then powers back up when it's done. When I poll
> the drive asking for its status during the Erase, it is "not there"
> but the driver takes quite a while to report back. I'd like to
> reduce the time that the driver spends checking for the drive.
What tool do you use to issue the query? If the program uses SG_IO, the
timeout is specified by the program. If it uses something else (one of
HDIO ioctls), timeouts are hardcoded in the ioctl functions in
libata-scsi.c - currently 10secs.
--
tejun
next prev parent reply other threads:[~2007-04-23 7:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-21 23:24 SATA timeout value Russell Sloan
2007-04-23 6:59 ` Tejun Heo [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-04-23 15:11 Russell Sloan
2007-04-23 15:50 ` Tejun Heo
2007-04-23 16:46 Russell Sloan
2007-04-23 22:07 ` Mark Lord
2007-04-24 8:25 ` Tejun Heo
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