From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH 06/19] qla2xxx: Enable SLER conditionally in target mode. Date: Thu, 25 Sep 2014 03:14:20 -0700 Message-ID: <20140925101420.GA305@infradead.org> References: <1411632612-7320-1-git-send-email-saurav.kashyap@qlogic.com> <1411632612-7320-7-git-send-email-saurav.kashyap@qlogic.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1411632612-7320-7-git-send-email-saurav.kashyap@qlogic.com> Sender: target-devel-owner@vger.kernel.org To: Saurav Kashyap Cc: target-devel@vger.kernel.org, linux-scsi@vger.kernel.org, hch@lst.de, giridhar.malavali@qlogic.com, andrew.vasquez@qlogic.com List-Id: linux-scsi@vger.kernel.org On Thu, Sep 25, 2014 at 04:09:59AM -0400, Saurav Kashyap wrote: > From: Arun Easi > > Sequence level error recovery (aka FC Tape) is not really required > for disk devices. On heavily loaded system, with slow turn around, > a bunch of status enquiries using REC puts additional burden to the > target, so just turn off SLER by default. I don't think a new compile time flag for this is a good idea. I can put this in under the assumption that it will basically #if 0 out the code, but a module or sysfs parameter would be more useful if your intent is that users ever enable it.