From: Douglas Gilbert <dougg@torque.net>
To: deshwar@ctd.hcltech.com
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: Reg: SCSI
Date: Fri, 04 Jan 2002 20:43:59 -0500 [thread overview]
Message-ID: <3C365A5F.46938829@torque.net> (raw)
Eshwar D - CTD, Chennai wrote:
> In my project while reading/writing the data in
> to scsi disk, I need to block the device using
> RESERVE UNIT and RELEASE UNIT. Can any one help me
> how to send SCSI command to SCSI device. I know that
> this can be done under user level using SCSI generic
> interface. I required function in kernel version
> 2.4.2. level.
See:
http://www.linuxdoc.org/HOWTO/SCSI-Generic-HOWTO/
To break reservations from a crippled SCSI initiator, the
other initiator needs access to a SCSI bus reset. Even
though the sg driver supports this, the SCSI mid-level
support is missing in the standard lk 2.4 series. Many
distributions have the required patch (from James
Bottomley) that makes SCSI bus reset functional.
That SCSI bus reset mid-level patch for the lk 2.5 series
will be heading in Jens's direction shortly.
Doug Gilbert
next reply other threads:[~2002-01-05 1:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-05 1:43 Douglas Gilbert [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-01-04 13:45 Reg: SCSI Eshwar D - CTD, Chennai.
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