From mboxrd@z Thu Jan 1 00:00:00 1970 From: Douglas Gilbert Subject: Re: [PATCH 1/10] mptfusion : Transport Layer Retry support Date: Tue, 11 Jul 2006 21:20:30 -0400 Message-ID: <44B44E5E.2040101@torque.net> References: <20060711232109.GA12249@lsil.com> Reply-To: dougg@torque.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from pentafluge.infradead.org ([213.146.154.40]:65171 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932338AbWGLBVG (ORCPT ); Tue, 11 Jul 2006 21:21:06 -0400 In-Reply-To: <20060711232109.GA12249@lsil.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Eric Moore Cc: linux-scsi@vger.kernel.org, James.Bottomley@SteelEye.com Eric Moore wrote: > Transport Layer Retry support for SAS Tapes. > Detects whether firmware supports TLR, then > issues special scsi opcode to enable TLR in > the end device. Eric, The "protocol specific logical unit mode page for SAS SSP - short format" has a 'transport layer retries' bit. I thought that SAS tape drives would implement that mode page (0x18,0x0) and allow that bit to be changeable. The "special scsi opcode to enable TLR" seems to imply another technique. Doug Gilbert