From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Domsch Subject: Re: One question about SCSI device hotplug Date: Tue, 1 Mar 2005 22:57:52 -0600 Message-ID: <20050302045752.GC20042@lists.us.dell.com> References: <8126E4F969BA254AB43EA03C59F44E8401850062@pdsmsx404> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Received: from lists.us.dell.com ([143.166.224.162]:11614 "EHLO lists.us.dell.com") by vger.kernel.org with ESMTP id S262174AbVCBE6O (ORCPT ); Tue, 1 Mar 2005 23:58:14 -0500 Content-Disposition: inline In-Reply-To: <8126E4F969BA254AB43EA03C59F44E8401850062@pdsmsx404> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Zhao, Forrest" Cc: James.Smart@Emulex.Com, matthew@wil.cx, linux-scsi@vger.kernel.org, "Caushik, Ramesh" , sdake@mvista.com 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