From: Matt Domsch <Matt_Domsch@dell.com>
To: "Zhao, Forrest" <forrest.zhao@intel.com>
Cc: James.Smart@Emulex.Com, matthew@wil.cx,
linux-scsi@vger.kernel.org, "Caushik,
Ramesh" <ramesh.caushik@intel.com>,
sdake@mvista.com
Subject: Re: One question about SCSI device hotplug
Date: Tue, 1 Mar 2005 22:57:52 -0600 [thread overview]
Message-ID: <20050302045752.GC20042@lists.us.dell.com> (raw)
In-Reply-To: <8126E4F969BA254AB43EA03C59F44E8401850062@pdsmsx404>
On Wed, Mar 02, 2005 at 12:47:46PM +0800, Zhao, Forrest wrote:
> < but the LLDD doesn't get an interrupt from the firmware on such
> events).
>
> So you mean that when SCSI device is surprise-removed, HBA will not
> assert an interrupt to kernel? Even LLDD doesn't know the SCSI device is
> removed?
Exactly. Some controllers know, and assert events up to their LLDD.
Jame's Emulex driver apparently does, perhaps this holds true for all
FC devices.
Some firmwares (LSI megaraid for sure, Adaptec SCSI I believe) don't.
--
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
next prev parent reply other threads:[~2005-03-02 4:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-02 4:47 One question about SCSI device hotplug Zhao, Forrest
2005-03-02 4:57 ` Matt Domsch [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-03-02 15:51 James.Smart
2005-03-02 5:33 Zhao, Forrest
2005-03-02 3:40 Rajat Jain, Noida
2005-03-01 16:35 James.Smart
2005-03-02 4:42 ` Matt Domsch
2005-03-01 15:20 Nagpure, Dinesh
2005-03-01 9:06 Zhao, Forrest
2005-03-01 14:46 ` Matthew Wilcox
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